2012年5月29日星期二

LED exposed luminous characters, production methods and steps introduced


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LED lighting products --- the LED luminous characters, and really give the city lighting adds a lot of luster, played an irreplaceable role, watching the beauty of the night market, \"the Star\", there is more and more people recognized the importance of the LED luminous characters, how to make the origin of curious, here are under the ED exposed wear Kong Faguang word production need materials and outdoor LED sign production steps to lift the hearts of mystery lovers.
First: the LED exposed to wear the the Kong Faguang word production materials: forming a special power of the word tin, wire, LED signs, exposed light string.

 

Second: LED outdoor sign production steps:
(1) Design: according to the font design punch file understand the graphic design staff can easily complete the hole generally about 1 cm from the edge of the hole spacing of 2-4 cm (height) according to the word size and installation aperture for 9.25mm (monochromatic light strings) or 12.3mm (lantern string).
(2) drilling: generally find in the local punch processing or plasma cutting, If you can not find these two device processing can also be hand-made, do the words to write with cutting plotter, mounted to a galvanized panel (foot more than 6mm galvanized sheet) and then with an electric drill or bench drill to drill a pore size of 9.25mm (monochromatic light strings) or 12.3mm (a string of colorful lights), spacing, height and production costs outside the sign system installed and set General LED center spacing: word light within 1 meter distance is 25mm, the word light from the more than 1 meter of 30mm, the smaller the spacing, the better the higher the cost.
Do word: word double-sided polished smooth drilled holes and welded to the side of the weld, spray car paint, and then soldering or oxyfluoride. Iron words above can be entrusted to the local strength of the iron-word production shop processing. (Under 9% of galvanized sheet paint word processing price of approximately 120 - 150 yuan / m).
Insert lights: one by one put the lamp in accordance with the word gesture sequence. Lights installed can use the beak clamp to live the lamp into the hole and can not be forced upon, such as the hole is too small, you can gently rotating, or light holes with standard drill drill. Filled with words can be arbitrarily cut off the extra lights. The rest of the lights can be connected to other words.
Connection: a main line connecting the light and to the power, this step is important to note that the exposed string lights designed for a group of 30, each group of lights can not be more than 30 lights, and each group of lights end to end should be connected directly to the power the main line, received power of positive general red and black thread received the negative terminal of power supply.
After the aging test: LED, check processing is not lit, then aging test for 24 hours.
Maintenance: 24 hours after the aging test, individual lamp is not lit or unstable, as long as the lighting does not retreat after the word and then a single light from the back or front into, and the wiring on the main line of the power of any light string . (Do not cut the string lights line, just poke the connected light string line and press the color)

 


8 testing, installation.
Transport to the site, scaffolding on-site installation. Outdoor waterproof LED Cautions
(1) outdoor waterproof LED string voltage DC 5V, current about 0.016 mA.
(2) Use the output voltage of the DC 5 volt power supply.
(3) the calculation of waterproof LED Power: For example, the output voltage of 5 V 30A power can be installed LED light quantity: 30 * 0.8/0.16 = 1500 LED that is, about 1500 lights.
(4) leads from the power wire cross-sectional area can not be less than 4 mm2 (also 2.5, 2).
(5) light string of electronic line red received the positive power supply (some for two, and after receiving the positive power supply).
(6) light string wires black received the power of negative (some two, and after receiving the positive power supply

 

2012年5月23日星期三

stainless steel reduce


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First, the main technical performance
Technical principle: the original molding, composite technology and a full set of computer digital control technology, automatic production of steel -plastic / stainless steel plastic composite tube, the unique production of large size composite pipe of five layers.stainless steel reduce

Technical level: The project creatively developed a unique thin-walled large-diameter metal tube passive molding technology, the long flow channel PE co-extrusion technology and precision metal and PE composite technology and unique necking system. Advanced five-story structural steel pipe has obtained national patent, the device produced by the specifications of the pipe, the diameter of the peers in the industry, the largest, and its technology leading domestic level.

The full set of computer numerical control, precision inverter welding power source, automatic tracking of the welding current, intelligent tension control, the line laser diameter, online eddy current testing, high-frequency heating and distributed intelligent real-time control systems and many other advanced technologies.pipe fittings

Among them, the production line control system using Fieldbus distributed control structure and high stability of the NT operating system, large-screen touch screen imported brand-name industrial control computer as main control unit, the international standardization of data processing and computing power strong. Control software into a number of expert experience and years of Industrial Control Technology are written, easy to operate, user-friendly, reliable performance, multi-task fuzzy control, self-learning mode, and advanced network technology, the system uses the temperature of intelligent PID closed-loop extrusion closed-loop machine speed, welding current and speed servo tractor synchronous operation, high-frequency heating power and speed synchronous changes in a variety of advanced control technology.
Second, the scope and application conditionsstainless steel eblow

Plastic composite pipe production line for the Company s patented product of the production of new plastic composite pipe developed sets of production equipment, and its products used in the field of urban construction of water supply, gas, sewage, chemicals, petroleum, mining, agricultural irrigation fluid transport, used to replace high energy consumption, easy to rust, scaling, short life, transport bulky cast pipe, steel and other traditional pipe, a very broad application prospects.stainless steel reduce

Plastic composite pipe technology and equipment is a high-tech products, suitable for all enterprises to invest in the new building materials industry. Plastic composite pipe technology and equipment, energy saving, non-toxic, non-polluting production pipe is new environmentally friendly products. Used in the production of water, electricity, gas, raw materials, no special requirements of the country can easily solve.

LED to lead the trunk road lighting


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In the western highway, road lighting construction, the the Pengyuan people with real action once again witnessed the

brilliant results achieved in road lighting. Integration of high-power high-brightness LED white light source, the

instantaneous light, and no flicker. Lighting angle of the bat wing the way design and the Pengyuan unique optical

transmitter optical design to solve the zebra effect in the past, LED street lighting, so that the lamps to light more evenly

and soft. Shell lamps using high-pressure cast aluminum, so that the entire lamp durable, anti-static and difficult to James

Gray. The use of conduction + convection + radiation of a full range of unique thermal design, using a constant current

source drive, and fully guarantee the long life of LED lamps. According to it than the color rendering index of high-pressure

sodium lamp 20Ra, Pengyuan LED\\ s color rendering index has been around 85Ra, close to natural light, color rendering is more

realistic, more able to reflect the color of the object itself, of LED high The color will undoubtedly help to identify the

target of drivers and pedestrians, to provide better traffic conditions in the same road height.

    LED street lighting, has significant economic and social benefits. The Western highway is the \"silver lining\" in the

natural ecological effects of Qinhuangdao City, and green eco-development plan fast road system, \"the two-wire link. Pengyuan

follow the green building concept, Qinhuangdao city, fully demonstrated the great advantages of LED energy saving and

environmental protection in the construction of the Western Expressway. Dong Qin, Deputy General Manager said:, for a total

installation of 511 LED street in the highway road lighting, 187W of average power, integrated energy-saving rate of 53.5

percent, according to lighting 10.5 hours a year power-saving over nearly 430 000.

    With people saving and environmental protection and green low-carbon life, the growing awareness of, demand for LED

products are more intense. Pengyuan photoelectron is constantly increasing product development and investment, and constantly

upgrade the products to meet the people\\ s lives need to make its own contribution to the build environment-friendly society.

 

2012年5月22日星期二

Principle and Features of the laser processing


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Materials for a variety of laser beam processing, such as drilling, cutting, scribing, welding and heat treatment. Laser

processing has many advantages: (1) laser power density, the workpiece absorbs laser light and temperature increases, melting

or vaporization, even if the melting point, high hardness and brittle materials (such as ceramic, diamond, etc.) can also be

used in laser processing; â'¡ laser head not contact with the workpiece, there is no tooling wear problems; â'¢ workpiece free

from stress, pollution is not easy; â'£ can be on the movement of the workpiece or sealed in a glass shell material

processing; â'¤ laser beam divergence angle of less than 1 milli-arc spot diameter can be as small as micrometers, the role of

time can be short to the nanosecond and picosecond high-power laser continuous output power up to a kilowatt to kilowatt

order of magnitude, and therefore suitable both for laser precision microfabrication, but also appropriate large-scale

materials processing; the â'¥ laser beam is easy to control, easy and precision machinery, precision measurement technology

and computer, highly automated processing and to achieve high machining accuracy; â'¦ in harsh environments or other

inaccessible places. available robot laser processing.

Has laser processing techniques include: laser rapid forming, laser welding, laser drilling, laser cutting technology, laser

marking, laser to re-balance technique, laser etching, laser trimming, laser storage technology, crossed laser technology,

laser cleaning technique, laser heat treatment and surface treatment technology.

Air-conditioning vent and for your interest in the home central air conditioning installation considerations


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Ensure quality in the home central air conditioning, package, you must pay attention to four issues: a concealed wo rk; 2 and decoration, utilities coordination; monitoring of decoration during the construction period; 4, refrigerant leak.
    A concealed work home central air conditioning should be installed prior to the upholstery, the install after the end of the decoration. By decorating the indoor unit, refrigerant piping, condensate equipment, duct, conduit hidden in the ceiling mezzanine, decorative walls, so that the appearance of only exposed to the air outlet and return air. Decoration after the end of the air conditioning system debugging. Therefore, after the end of the air conditioning installation, decoration works construction, should be carried out once hidden works acceptance.
    Owners of 1.1 to participate in the acceptance of staff, decoration charge of construction (the best of all construction workers), person in charge of air-conditioning installation.
    1.2 Acceptance purpose
    (1) again carefully check the air conditioning installation, construction quality, the owners\\ acceptance of recognition. (2) clear lines of responsibility. To the owners and turn yellow is qualified to display the current quality of the air conditioning works, air tightness and insulation to meet the requirements, the decorating staff to improve accountability in the the upholster process not to damage the air conditioning system. 1.3 Acceptance content
    (1) indoor unit, air box, return air box, air duct installation and insulation situation, whether the ceiling height. (2) the refrigerant brass wiring affect the upholster. Check the brass and the insulation of the branch component. (3) condensed water pipe routing. Insulation, tilt to meet the requirements, whether the trap. Wiring affect upholster. The joint examination of (4) temporarily installed in the outdoor unit refrigerant piping system pressure gau ge, and a written discipline when the outdoor temperature and pressure, if the system is damaged decorating the construction process, the pressure should remain constant.
    2, and decoration, utilities coordination
    2.1 and decorating project coordination
    (1) In concealed work, to upholster this air conditioning system characteristics and precautions to be careful not to damage in the future upholster. They clearly pointed out: if the air conditioning installation and does affect the decor, decorating difficult to construction, and do not self-assertion, casual mobile air-conditioning units, air-conditioning system damage. Should be to find the air conditioning installation and the person in charge of consultation. (2) warned the decoration construction workers: must be careful not to damage the insulation, not to damage the pipe itself, pay attention to the nails do not nailed to the copper tube and condensation of the refrigerant pipe through the local decorating. In particular, the brass of the refrigerant and condensate buried in wall pipe, be sure to mark the location and direction of the drawings in the form, to the decorating charge of construction, and to remind near this location are not allowed to punch or a nail. (3) the ceiling height of the indoor unit room, according to the design and Coordination for a high degree of hanging, do not subsidize the indoor unit. If the condensate pipe equipped with a trap, the ceiling must be less than the trap. (4) solution in the engine room ceiling is fixed or removable. If fixed. You need to open manholes. Written given the size and location of manholes. (5) is given in writing outlet, back vent size, location and requirements to submit to the person in charge of decorating construction.
    2.2 and hydropower coordination (1) condensate drai nage routed to where, what kind of pipes connected to how to connect, to be co-ordination with the plumbers. (2) into the household power distribution box is generally decorating electrician unified layout. Decorating electrical main power to the outdoor unit\\ s power supply terminal. Air conditioning installation and the person in charge of the total power of the indoor and outdoor decorating electrician should be in writing, with the first (three-phase five-wire or single-phase three-wire; alone wearing a tube, not mixed with other power cord to wear; line the color requirements.) accessories requirements (leakage protection, fuse, manual switch). If indoor, outdoor supply, the requirements should be proposed separately.
    3 decorating during the construction period to monitor
    During the construction and decoration, air conditioning install the person in charge should always be to the site to check.
Identify problems, to find out why, and promptly correct remedy. Check, as follows: (1) Check the pressure gauge any change. (2) Check whether the ceiling height to meet the requirements. (3) Check the refrigerant copper pipe and condensate pipe decoration is damaged pipe. (4) Check the wall of pipe at No holes or nail. (5) Check the outlet, or outlet, the size and location of manholes open whether there is any problem.
    Refrigerant leak
    R22 in the air conditioning system is non-toxic, non-flammable safety refrigerants. But the concentration is too high in the air will be suffocating, you must cause alarm. Especially in the duct, VRV home central air conditioning system is installed must pay attention to this problem.

JC jaw crusher | energy-saving crusher


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The jaw crusher is mainly a compound pendulum jaw crusher, crushing ratio is up to 10. But its drawback is that the vertical travel of the movable jaw broken plate wear memorie s of people, adding to the over-crush phenomenon, so that an increase in non-productive energy consumption. In order to overcome these shortcomings, and improve the development success of a new type of energy-saving crusher-JC jaw crusher.

JC jaw crusher has the following characteristics:

(1) no friction mechanism broken, the material in the process of breaking the jaw plate material without relative sliding of pure squeeze. The life of the jaw plate 5 to 10 times more complex pendulum jaw crusher.

(2) crushing chamber with a variable opening angle curve of the cavity shape, and by the rational design of cavity-shaped various parts of the tooth angle and length filled with broken, improve the through capacity of the crusher, to ensure the particle size of crusher broken uniform.

(3) uses a simple and practical and versatile mechanical, hydraulic, electrical protection system. Crusher overload, mechanical protection of the safe clutches rapidly disengage so that the spindle and pulley of the crusher, the crusher idling, while an alarm. Once the overload is removed, can be reset quickly, without replacing any parts. In addition, when the crusher is abnormal (such as the lubrication system failure, damage to the main components, etc.), multi-function protection system can be quickly cut off the precision, so that the crusher stall, also issued an alert. This crusher security and reliability are increased.

(4) the nesting population adjustment simply adjust the front and rear of the fixed jaw position, without having to change the location of the cloud moving jaw. Very convenient time-saving, and thrust the geometry adjustment. The size always maintain the best condition.

(5) The crusher is the main moving parts, such as the front thrust plate thrust plate mandrel, connecting rod and the eccentric shaft, bearings all the closed thin no lubrication and good sealing effect. Lubricants both lubrication and cooling functions.

(6) of the jaw crusher machine welded structure, light weight, strength, manufacturing and maintenance are very convenient.

 

 

LED lights usher in new opportunities


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In recent years, LED lights with the lighting industry to flourish, as the representative of the Group of the United States, Germany Runda home appliance giants have to enter the LED lighting industry. In fact, as early as a decade ago, the TCL Group, Haier Group, and other household electrical appliance enterprises have been involved in the LED lighting industry. Appliance industry and the LED lighting industry in customer, channel and technically a lot in common, which is the number of household electrical appliance enterprises to select one of the reasons for the lighting industry.
LED lighting products, more secure, more low-carbon, less polluted environment
For users, LED lighting products used in the cold light technology, the heat much lower than the average lighting products, prolonged use do not have to worry about overheating and lead to security problems, is a more stable and reliable products; and compared with the traditional light source, ultraviolet and infrared light LED lighting release more health and safety. Compared with the traditional lighting products, LED lighting source products, through the power direct conversion of light energy, completely withou t the aid of mercury and lead and supporting materials, from the source to prevent the occurrence of mercury pollution, to achieve waste recycling use, also has very important significance for environmental protection.
The Japanese market, LEDinside survey found that enhance the realization of the LED luminous efficiency of LED lighting came as soon as possible, the LED lighting market demand, mostly scattered orders from the commercial space or indoor lighting, and did not see large-scale subsidy policy, making LED lighting offer of decline, Japan, for example, the LED lighting in 2010, the retail price of about $ 40 yuan, the minimum retail price came to $ 18, down significantly so that consumers feel the power rationing policy making and due after the earthquake Japanese LED lighting surge in demand has more than 30% penetration rate of LED lighting in the second quarter of this year. However, to the relaxation of the end of the third quarter of this year, the summer power rationing measures, the market demand can maintain worthy of observation.
An increasing number of large hotels, supermarkets, warehouses or factories, public buildings such as libraries, hospitals, schools, etc. to start using LED lighting equipment or participate in the transformation of energy saving systems. With the rapid development of LED lighting technology, LED lighting products began to gradually replace traditional light sources and lamps, widely used in various fields of everyday life.
New research and development of the Joint Meeting Industry Science and Technology Anhui Branch of only 3 mm light beads, LED lighting, LED lighting products, it lighting effect is seven times the ordinary energy-saving lamps. The diameter of only 3 mm lamp beads is the smallest LED lighting products on the market today, mainly for flat panel display, and new products are not on ly light efficiency, and save 30% electricity consumption per hour. From the lamp beads, 3 mm to the people living in the common street lamps, traffic lights and high-end flat-panel displays, for the popularization and application of energy-efficient LED lighting products, Anhui Branch to expand the market through technological innovation, won the development opportunities. The only green LED lighting products for this year\\ s production reached more than 400 kinds of, at the same time bring huge economic benefits, but also for society to achieve the benefits of energy saving of 40 million yuan.

 

2012年5月20日星期日

Sands


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Sand body swing problem
    Sand is a reference crusher works, and user specific usage information feedback combined with the advantages of the design of new and efficient system of sand equipment (stone crushing machine) with its typical use is to adapt to the current industry of artificial sand is The rod mill Sand, Impact Sand, straight-through Sand alternative.
    Sand in the production process, the body swing, but the amplitude, if the body swing particularly severe, then there may be three reasons:
    (1) may be more serious crusher impeller wearing parts wear. If the impeller on the wearing parts badly worn will result in the Sand internal operation time is not smooth, causing the swing is too large, this time as long as more pieces of wearing parts, Sand internal impeller to reach equilibrium;
    (2) may feed particle size is too large equipment swing too large, Sand in the design time, the maximum feed size of the equipment is generally 4-5 cm, sand and gravel production line Generally speaking , equipment, feed grain degrees in the 3-4 cm finished the amount of sand can be achieved most, if the feed cause the device swing is too large, if the feed is too small, collision broken inadequate finished the amount of sand is difficult to achieve full compliance;
    (3) Sand may also be impeller blockage, crushed stone production line if the impeller have obstructions can also cause uneven feeding, body swing is too large, as long as the impeller trail obstructions removed can solve the body to swing the big problem.

 

2012年5月18日星期五

LED modules encapsulated in how to use indoor lighting


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LED production equipment

Increasingly integrated into people s daily life as a new light source, its development can not be separated from the

lighting requirements. When the light-emitting diodes as a light source instead of the generation of light, than in the

previous

Generation light source with more people able to accept the advantages, it replaced, it will be a greater opportunity

Compared to conventional light sources (such as fluorescent and incandescent lamps), the LED close to the theoretical

conversion efficiency than conventional light source efficiency is 5-20 times higher. Even at this stage of the luminous

efficiency of mass production, its water

Also 2-15 times, combined with its point to the advantages of this gap will be even greater. Because of the light-emitting

principle of change, their life will be much higher than traditional light sources. In addition, because LED

With the health and environmental hazards of a series of advantages, at this stage has been recognized as the most

appropriate next-generation light source.

 

2012年5月17日星期四

High-power LEDs in interior lighting


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1 Introduction

The LED lighting market opportunities for the industry to bring endless imagination, and LED lighting applications, jump from the past Outdoor LED indoor lighting applications. According to Strategies Unlimited, statistics, LED interior lighting within five years there will be a trend of exponential growth. According to the estimates, to 2011, its output value will reach tens of billions of dollars. Especially in 2009, the EU took the lead to ban incandescent plan, as well as energy-saving issues of concern, creating a huge market opportunity LED interior lighting and an optimistic outlook. Below to analyze the development of high power LED indoor lighting cooling technology, optical design and drive design, lighting technology needs.

Development of high power LED lighting in the development of high power LED lighting depends on two elements: First, the chip itself; lighting technology, including thermal, optical drive.

2 chip support

At present, the LED chip technology, the key to development lies in the base material and epitaxial growth techniques. Base material by the traditional materials of sapphire, silicon and silicon carbide, the development of zinc oxide, gallium nitride and other materials. High-power chips for accent lighting and the overall lighting, or for decorative lighting and some simple auxiliary lighting, low-power chips, the key technology upgrades are related to how to develop a more efficient, more stable chip. In a few short years, by means of a series of technical improvements, including chip architecture, surface roughening treatment and multiple quantum well structure design, including LED light effects achieved a great breakthrough. Figure 1 is a schematic diagram of the LED chip structure. With mature production technology, the LED quantum efficiency will further improve the luminous efficiency of LED chips will increase as well.

 


2012年5月10日星期四

Fan coil units, freezing method


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fan coil units for low temperature in the winter disabled, and how to antifreeze?
Method One:
A. Central air conditioning in the design should consider wint er frost, frost means recommend the use of hot water, do not support the use of steam and electric heating. Steam antifreeze can also be prone to the phenomenon of uneven temperature, fan coil units, the upper temperature is relatively high, the bottom has begun to freeze. Does not support use of electric heating, the first electric heating is prone to dangerous electric heating costs of electricity, not energy, have to be careful not to individual fan coil switch in the control of all control, it should be.
Two. If the winter does not use fan coil units, it is recommended that:
a. The fan coil inside the water all to let go,
and b. And blind plate in the water supply and return water
(c) The use of compressed air (depending on the size of the fan coil compressed air blowing time)
(d) Fan coil antifreeze, do not have to fill, but make sure the fan coil liquid fully antifreeze dilution.
e. Design, when the circulation pump.
Method 2:
The design of the chilled water system in parallel with a circulating pump of small capacity.
A. If the system in winter is disabled, but a heat source, heat source switch to the fan coil water system, so that the small loop pump running.
Two. No heat source, can be set to the combined operation of an electric heater (shell and tube in parallel with the water system) with the small loop pump, fan coil water system pipe within the water temperature of not less than 5 ° C to ensure ice-free. To the system of water to ensure that 5 ℃, electric heating power is not too large, the running costs are not high, and more reliable than water, antifreeze and other methods. The above method for reference.

2012年5月8日星期二

Several commonly used river gravel Sand selection of reference


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Direct impact Sand of river pebbles, river pebbles Sand (Sand), is a production of construction sand, stone equipment. Metal and nonmetal ores of all kinds of hard rocks (rocks, granite, basalt, limestone, river g ravel, etc.) it can be broken into various size construction sand and gravel material, uniform particle size of sandy, high compressive strength, than natural sand, sand hammer to break the production more in line with the high standards of construction sand requirements, can enhance the quality of construction. The production line has a reliable, reasonable design, convenient operation, high efficiency. Sand production line based on the feeder, jaw crusher, PCL direct impact of breaking heavy shaker and efficient sand washing machine, and the belt is connected to a line, is the most advanced modern production lines. The production line uses high-speed rotation thrown round stone throw line speed of 76m / s, and collision resistant liner, forming a stone at the stone, the stone blacksmith\\ s crushing principle. The material to ensure that the entire process smooth and reliable operation, the energy efficient than traditional river g ravel Sand, river gravel, sand making machine equipment, energy saving of 50%.
pxj new crushing machine, also known as the third generation sand making machine is newly developed river gravel Sand, river gravel sand making machine. This product has: the particle size is small, uniform grain type, production capacity, hammer, long life, supporting small power change three broken for two broken, process simplification, simple structure, easy maintenance, smooth running characteristics. Equipment investment is less than 35% -50% of the traditional technology and equipment of the same size, the output efficiency is higher than the same scale of traditional technique and equipment 35% -50% (limestone, for example: a finished particle size ≤ 5mm accounted for more than 85%). Long-running and maintenance costs less than traditional technology and equipment of the same size by 35% -50%, widely used in the mecha nism of aggregate (limestone, river gravel, pebbles, granite, quartz), cement, refractory, metallurgy and other industries.
The rod mill sand making machine is widely used in the gravel industry, more traditional building sand making sand river pebbles, river gravel, sand making machine one is mainly used for the processing of feldspar, quartz, ore and other raw materials, broken . Cylinder to a certain speed, the grinding media in the friction and centrifugal force rose to a certain height to be thrown, so that the material impact on Morgan Stanley study, to achieve the purpose of sand.
Several river gravel Sand, river gravel, sand making machine has its own advantages and disadvantages, rod mill Sand discharge mostly for construction sand, while the impact crusher gradation best, requires the user to Since the situation to the selection of equipment. If you Buy Sand of river gravel, river grav el, sand making machine, consultation with the river gravel Sand, river gravel, sand making machine price, please contact the Zhengzhou Histon mechanical 0371-67816612


2012年5月5日星期六

Cycloid reducer range of applications and installation instructions


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(A) cycloid reducer range of applications
Cycloid reducer with cycloid pin gear engagement, the planetary transmission principle, it is usually called planetary cycloid speed reducer planetary cycloid reducer can be widely used in petroleum, environmental protection, chemicals, cement, transportation, textile, pharmaceutical, food, printing, lifting, mining, metallurgy, construction, power generation and other industries, as a driver or deceleration devices. Its unique smooth structure in many cases can replace the common cylindrical gear reducer and worm gear, planetary cycloid reducer is widely used in various industries and fields, by the majority of
Widely welcomed by the user.
(B) of the cycloid reducer using the conditions:
A cycloid reducer allowed to use the occasion of the continuous working system, while allowing the positive and negative in two directions running.
2, the input shaft speed rated rpm of 1500 rev / min for a 18.5 kwh recommendations in the input power is greater than 960 rev / min motor supporting use.
3, horizontal installati on cycloid reducer position are the horizontal position. The maximum horizontal angle of inclination is generally less than 15 ° during installation. More than 15 ° should be other measures to ensure adequate lubrication and to prevent oil leakage.
4, cycloid speed reducer output shaft can not be subject to large axial and radial forces, large axial and radial forces to take other measures.
(C) of the cycloid speed reducer when used to pay attention to lubrication:
Horizontal cycloid reducer with sump lubrication under normal circumstances, the oil level maintained in the middle of, as the oil window can, in poor working conditions, the ambient temperature can be used in high temperature circulating lubrication.
Cycloid reducer is generally used at room temperature, 40 # or 50 # mechanical oil lubrication, extreme pressure gear in order to improve the performance of the gear unit to extend the life of the cycloid reducer, we recommend using 70 # o r 90 # oil, can also work in the case of high and low temperature should re-consider lubricant.
3, the vertical installation planetary cycloid reducer confidential to strictly prevent the pump off the oil to avoid the damage of the parts of the reducer.
Refueling can spin the boot seat of the Ministry of ventilation cap to refuel. Seat lower part of the spin boot put the oil drain plug, you can release the waste oil. The speed reducer factory internal lubricant.
5, the first refueling operation 100 hours should be replaced with new oil, (and internal waste oil rinse) after continuous work every six months to replace (8-hour work), poor working conditions may be appropriate to shorten the oil change time, practice prove that the regular cleaning of the reducer and oil change (eg, 3-6 months) to extend the life of the gear unit has an important role. Should always be added in the course of lubricants.
Our newly issued reducer has been added to the lubricati ng grease, replaced every six months. Grease using lithium aluminum disulfide -2 # 2L-2 #-based grease.
(D) of cycloid reducer installation:
A cycloid speed reducer output shaft installation of couplings, pulleys, sprockets and other links do not allow direct thump, thump the gearhead output shaft structure can not withstand the axial force, free shaft end screw screwed into the screw pressure into links.
2, the output shaft and input shaft Shaft Diameter selection of GB1568-79 tie.
3 rings screw reducer only lifting gear reducer.
4, install the reducer on the basis of calibration reducer installation centerline elevation, level and its associated parts of the relevant size. Calibration mounted drive shaft concentricity should not exceed the extent permitted by the coupling.
5, the reducer calibration, available steel pads or cast iron pads, the pad at a height of not more than three, can also be used the deed iron reducer calibration should change into flat pads.
6, the configuration of the pad should be to avoid causing the body deformation, should be the basis of bolts arranged symmetrically on both sides of their distance from each other enough so that water slurry in free circulation when irrigation.
7, the irrigation of the slurry should be dense, not bubbles, voids and other defects.

2008 LED flowering streets


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128â…¹64 lcd module - China Manufacturer
Thank you for inquiry my 128ⅹ64 lcd module, Tel: +86-571- 85121224, E-MAIL:sales@tsingtek.com
http://www.china-lcdmodule.com/key-128â…¹64-lcd-module-66/


59 According to the Information Bureau of Industry and Commerce Bureau records show that, at present, the city registered

the advertising production company. Lusong District on July 1 is the industry\\ s well-known advertising street, where they

gather about 20 advertising production company. But their size is not large, the number of employees are mostly no more than

20 people.

    \"The remediation on the line, should be a \\ shuffle\\ .\" Li Junhui is a word to seek the person in charge of the world

advertising companies in the advertising production has been 23 years, the dynamics of the industry familiar with the heart.

    In 2007, Li Junhui transformation produced LED luminous characters, then the unit price per square meter up to three or

four thousand, profit is up to about 50%. Visionary customers are willing to spend the money. \"Said Li Junhui, than ordinary

billboards, LED luminous characters, LED display with color, light-emitting long-lasting, energy-saving advantages, quickly

sought after by the market.


2012年5月3日星期四

Laser cutting machine interpretation


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Electric Shocking controller - China Manufacturer
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 CO2 laser cutting is focusing mirror CO2 laser beam is focused on the material surface material melting at the same time with the laser beam of compressed gas to blow away the molten material, and the laser beam and materials for the relative motion along a certain trajectory, thus, form a certain shape of the kerf. Since the 1970s, with the CO2 laser and CNC technology, continuous improvement and development, has now become a state-of-the-art processing methods of sheet metal cutting industry. In the fifties and sixties as a sheet material cutting method: Plate oxyacetylene flame cutting; sheet using scissors under the bed material, forming large quantities of complex parts using stamping, one-piece vibration cut. After the 1970s, in order to improve and improve the quality of the flame-cutting incision, but also to promote the ethylene oxide precision flame cutting and plasma cutting. In order to reduce the manufacturing cycle for large stamping dies and the development of CNC nibbling and EDM technology. Various cutting cutting method has its shortcomings, the scope of industrial production.
CO2 laser cutting technology th an the other obvious advantages of the method is:
(1) cutting quality. Narrow kerf width (0.1 - 0.5mm), high precision (usually hole center distance error of 0.1 - 0.4mm outline size of the error of 0.1 - 0.5mm), the cut surface roughness good (generally Ra = 12.5 - 25μm ), kerf generally do not need to re-processing can be welded.
(2) cutting speed. Such as the use of 2KW laser power, 8mm thick steel cutting speed 1.6m/min; 2mm thick stainless steel cutting speed 3.5m/min, small heat affected zone, minimal distortion.
(3) Clean, safe, pollution-free. Greatly improved the working environment of the operating personnel. Of course, the accuracy and cut surface roughness, CO2 laser cutting can not be more than EDM; cutting thickness is difficult to reach the level of flame and plasma cutting. However, the above significant advantages enough to prove: CO2 laser cutting has been and is being replaced by part of the traditional cutting process method, especially the cutting of a variety of non-metallic materials. It is the rapid development of increasingly widespread application of advanced processing methods.
Since the 1990s, due to the development of China\\ s socialist market economy, competition among enterprises is fierce, each firm must be in accordance with their terms, the correct choice of advanced manufacturing technology to improve product quality and production efficiency. CO2 laser cutting machine technology in China\\ s rapid development.

 

2012年5月2日星期三

Analytical electric forklift AC drive technology


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forklift fork extension - China Manufacturer
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1, China\\ s electric forklift market prospect is broad
The modern logistics industry has become a pillar industry of national economy of the new century. It not only form the modern supply chain carrier and the basis of the value chain management, production, circulation and consumption of organic connection, speed up the process of social reproduction, and the fastest speed, best practice and optimal combination of complete goods from production to consumption areas of the transfer process to maximize the savings in distribution costs. Forklift known as \"the handling of God\" plays a huge role in the logistics field. In recent years, electric forklift will be more and more customers. But from the point of view of electric forklift market share of only 21%, compared the ratio of the proportion of European and American markets electric forklift, there are still considerable differences. This shows that China\\ s electric forklift has broad market prospects.
     2, electric forklift has a significant energy-saving environmental advantages
In addition to low noise and exhaust emission characteristics, th e many advantages of electric forklifts, in fact, the use of electric forklifts and maintenance cost relative internal combustion forklifts have a great advantage.
The use of cost: the cost of consumption of electrical energy consumption costs than diesel or liquefied petroleum gas. If our forklift trucks with a payload capacity of three tons to do, each shift of a diesel internal combustion forklift truck diesel consumed (according to each frequency of consumption of 40 liters of diesel fuel, vehicles per hour, 60 VDI cycle consumption of 5.5 liters of diesel to calculate a) costs about 196 yuan (4.9 yuan per liter of diesel). A 3-ton electric forklift is 80 volts 500AH battery (the battery storage of electricity for 8 × 500 = 40 kWh), an operating frequency (80% discharge, in accordance with the 120% supplementary charge ratio, need to consume electricity is about 40 degrees) costs about 140 yuan ($ 3.5 per unit in accorda nce with the current industrial electricity prices). Can save 56 yuan per day, calculated in accordance with 250 days a year, you can save $ 14,000 a year in energy costs. If you use five years to calculate, you can save $ 70,000.
Electric forklift due to its operational control is simple, flexible, operating strength of its operation is relatively internal combustion forklift trucks in terms of light a lot of its electric power steering system, the acceleration control system, hydraulic control system and brake system is controlled by electrical signals, greatly reducing operator\\ s labor intensity, so that a very big help for improving its efficiency and accuracy of the work.
Maintenance costs: maintenance cycle in terms of length of two to three times of electric forklift maintenance cycle internal combustion forklifts, usually internal combustion forklift maintenance cycle up to 500 hours of work, and electric forklifts have been able to reach more than 1000 h ours maintenance cycle. Maintenance content, electric forklift maintenance than internal combustion forklifts, maintenance simple, usually as long as the parts of the lubrication of some joint activities such as the bearing of the door frame, turn to other bridges to check the clean up to every 2000 or 3000 hours to be replaced once the hydraulic oil, gear oil and hydraulic filters, other materials are very limited. Other than internal combustion forklift truck lubrication for up to 500 hours (usually about every 300 hours) is necessary to replace the engine oil and oil filter every 1000 hours to replace the hydraulic oil, engine oil, transmission oil and oil filter device. Also replace the belt (engine timing belts, generator belts, etc.). Or three tons forklift example, according to the calculation of operating 2000 hours per year, the maintenance costs of the internal combustion forklifts 3,000 to $ 4,000 (just the cost of materials), while the electric forklift maintenance costs $ 1,000 to $ 1,500 (cost of materials) .
Maintain the time required by the maintenance of internal combustion forklifts electric forklift maintenance interval cycle is relatively long, at the same time, the time required of each maintenance than internal combustion forklifts, so significant savings in labor costs, maintenance needs, in fact, more of this substantial forklift downtime is greatly reduced, so that the economic benefits of improved forklift efficiency is difficult to calculate.
Electric forklift battery service life of 1,500 charge-discharge cycles, converted into the forklift working hours of 10,000 hours, the same which is also equivalent to an internal combustion forklift engine overhaul time, so when the electric forklift battery replacement cost and engine overhaul costs are relatively close, but replace the battery faster than the speed of the engine overhaul (or replacement of the engine speed) is much faster, but also reflect on the advantages of time efficiency.
Thus, while we make in the purchase of electric forklift spend more expensive than the same load capacity of internal combustion forklifts to be 30% higher, but the total cost of using directly measured data can be seen, in fact, the total cost of electric forklift than the internal combustion forklift trucks is much lower. The one hand, more and more the forklift indoor operation, such as vehicle exhaust emissions requirements getting higher and higher. Europe and the United States and other places have strict rules, the indoor ban on the use of internal combustion forklifts. Even now in the country\\ s domestic laws and regulations have not yet started to strictly limit the internal combustion forklifts are used indoors, but compared to internal combustion forklifts, electric vehicles, low-noise, no exhaust e missions advantages have been recognized by many users. In addition, selection of electric forklift trucks, there are some technical reasons. The rapid development of electronic control technology makes electric forklift operations to become more and more comfortable, the broader the scope of application, more and more solutions to the logistics, such as electric pallet trucks, electric stackers, forklifts, three narrow channel forklift such as internal combustion forklifts, electric forklifts to solve these problems, in particular, played a very important role in warehousing and logistics solutions. These in terms of demand for electric forklift market growth rate will be faster and faster, electric forklift market share will be growing.
     3, electric forklifts become more perfect towards the practical
Electric forklift vehicle power supply, power, motor-driven wheel driving, in line with road traffic, the requirements of safety regulations. The advantages of electric forklifts is: it does not pollute the atmosphere emissions of harmful gases, even if the power consumption are translated into emissions from power plants, except sulfur and particulates and other pollutants were also significantly reduced due to power plants are mostly built away from populated dense city, less damage to humans and the plant is fixed, the concentration of emissions, to get rid of various harmful emissions easier, also has the relevant technology. Electricity from a variety of primary energy to obtain, such as coal, nuclear, hydro, the lifting of the depletion of oil resources has become increasingly worried about. Charging electric forklifts can take advantage of evening electricity trough when surplus electricity, day and night can be fully utilized, and greatly improve its economic efficiency power generation equipment. Some studies have shown that After smelting, the same crude oil sent to the power plant into the battery, rec hargeable, battery-powered forklift, its energy efficiency The refined into gasoline, and then the gasoline engine-driven forklift, so conducive to saving energy and reduce carbon dioxide emissions, it is these advantages, research and application of electric forklift become a hot topic in the forklift industry.
The difficulties of electric forklifts is too little energy stored in the battery unit weight, and also more expensive due to the electric forklift battery, not any form economies of scale, so the purchase price is more expensive.