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Slag inclusion defects of brake shell in Lost foam casting production

Lost foam casting technology is widely used in the foundry industry because of its advantages of small investment, low energy consumption, good working environment, high production efficiency and less pollution emission, especially in the production of large quantities, high precision and complex structure castings. However, the lost foam casting...

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Defects in lost foam casting process

① Because the preparatory work in the early stage of production is not in place, the theoretical negative pressure value of the system is designed relatively low, resulting in sand sticking defects of castings. ② Due to the low temperature of the molten metal, the casting of the workpiece...

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The advantage of lost mold in casting process

(1) When using polystyrene foam in white mold manufacture, its density is very small, and the labor intensity of the operators is low during the operation. The foam material will not pollute the environment and damage the human body at normal temperature. It is also easy to achieve cleaner...

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Composition of fire resistant coating for lost foam casting

The refractory coating for lost foam casting consists of refractory aggregate, carrier (solvent), suspending agent, binder and other additives. ① Refractory aggregate. It is the main component of the coating for lost foam casting. It has the functions of heat insulation, isolation, anti sand sticking and reducing the surface...

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