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What should we pay attention to when choosing copper casting

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What should we pay attention to when choosing copper casting

Release date:2019-09-23 15:38 source:Original click:

 The first is the design technicality of copper castings.

  In order to avoid or reduce the component bias of copper castings, it is necessary to consider the rationality of design from the angle of casting alloy and casting process characteristics, i.e. obvious size effect, solidification, shrinkage and stress, besides determining the geometrical shape and size of the parts according to working conditions and metal material properties. Analysis, deformation, cracking and other defects.

  Secondly, reasonable foundry technology should be adopted.

  According to the structure, weight and size of the copper casting, the characteristics of the casting alloy and the production conditions, the proper parting surface, molding and core making methods are selected, and the casting reinforcement, chill, riser and pouring system are reasonably set. To ensure the quality of castings.

  The third is the quality of raw materials for foundry.

  Metal furnace charge, refractory material, fuel, flux, modifier, casting sand, moulding sand binder, paint and other materials are not up to standard, which will cause defects such as porosity, pinholes, slag inclusion, sand bonding and so on, which will affect the appearance and internal quality of copper castings, and will cause castings to be scrapped in serious cases.

  The fourth is the process operation.

  Reasonable process operation rules should be formulated to improve the technical level of workers so that the process rules can be correctly implemented.

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