Talk about the shape of the sand casting method

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The shape of the sand casting can be divided into two major categories of hand molding and machine molding.
steel casting foundry
1) h and molding. It refers to the modeling process all done by hand or hand tools. Hand-shape from the model point is divided into whole mold shape, dig sand modeling, parting shape, live block modeling box modeling method. Hand molding method is more flexible, adaptable, production preparation time is short; but low productivity, labor intensity, poor casting quality. steel castings manufacturers
Therefore, hand shape used for a single small batch production. Commonly used in mass production, machine molding method. investment casting
2) machine molding. It refers to the machine to complete all or at least completed the process of the shape of tight sand. Sand filling, tap, compaction and from the model and other steps to complete the modeling work. Machine molding must use the template shape. Through the template with the sand box mechanically s eparated from the model.steel castings