In the process of production and processing, foundry manufacturers generally encounter a common casting defect - collapse box, even for experienced large foundries.
The products cast by steel casting manufacturers usually have pores, sand holes, shrinkage, cracks and other defects, and the common hot crack defects in cracks, so what are the main reasons for the cracking of steel casting parts?
In recent years, with the progress of casting production technology, lost mold casting is a hit in the casting industry.
In casting production, we often hear foundry manufacturers say that this is gray cast iron, that is ductile iron, many times we are difficult to distinguish.
As a common casting defect in production and processing, the fracture of casting parts should be paid attention to by foundry manufacturers.
There are many kinds of heat treatment processes for casting parts, which are generally composed of three stages: heating, insulation and cooling. However, the deformation of casting parts often occurs in the process of hot working.