The main reason is that the gas generated
In the production process of cast iron parts, various casting defects often occur in cast iron parts. How to prevent these defects has always been a concern of casting manufacturers. This article introduces the author's knowledge and practical experience in this regard. 1 Pore characteristics: Pore holes in castings refer to lubricating holes of different sizes existing in or near the surface of the casting. The pore walls are often oxidized, because the origin and composition of the gas are different, and the manifestation of the pores is also different.
