Low pressure casting is widely used in metal processing technology, in China's modern industry plays a huge role, with the low-pressure casting in China's extensive use, it also brings the disadvantages exposed.
First, the oxidation of slag
Oxidized slag occurs because the charge is generally unclean, or in the course of the use of the burden of the use of too many times, there is a reason can also lead to low-pressure casting process of oxidation slag, that is, the casting system Poorly designed, improperly set in the filling time.
Second, the pores, shrinkage
Stomatal problems in the process of low pressure casting is the most common, it appears generally due to poor mold casting tools caused by bad, mold coating system poor coating, cooling ring set incorrectly, can also lead to the production of pores, shrinkage.
Third, the crack
In the process of low-pressure casting, the cracks are very common, the mold design is unreasonable, sharp corners, wall thickness difference will lead to large cracks in the phenomenon, in order to eradicate the crack phenomenon, improve the structure of the mold design is inevitable Of the choice, only the mold design is reasonable, to solve the problem will help.
Low pressure casting technology in China's processing technology is very common, with the development of technology, which has become increasingly apparent the drawbacks, we only analyze the root causes of the problem in order to better solve the problem.
