design process and raw material quality of wear - resistant castings

- Mar 29, 2019-

Wear-resistant casting technology design, in the process of design, in addition to need according to the working conditions and the performance of the metal material to determine the casting geometry shape, size, also must from the perspective of the casting alloy and casting characteristics to consider the rationality of the design, namely the obvious size effect and solidification, shrinkage, stress and other problems.

 

It is necessary to have a reasonable casting process for wear-resisting castings, according to casting structure, weight and size, casting alloy characteristics and production conditions, select appropriate parting surface and molding, core making method, and set casting bars, chillers, risers and casting system, etc.To ensure quality casting.

 

Wear resistant castings mainly USES the quality of raw materials, metal furnace charge, refractory materials, fuel, fluxing agent, modifier and casting sand, sand binder, the quality of coating materials such as substandard, casting causes porosity, pore, slag inclusion, defects such as adhering sand, affect the appearance quality and internal quality of castings, the serious will make the casting scrap.The 4th it is craft operation, want to make reasonable craft operation regulation, raise the technical level of the worker, make craft regulation gets correct carry out.