Views: 2 Author: Site Editor Publish Time: 2018-04-08 Origin: Site
H2. Precision casting is a casting process with less cutting or no cutting, which is an excellent technology in casting industry. Its application is very wide, not only is applicable to various types, various kinds of alloy casting, and produce the casting dimension accuracy and surface quality is higher than other casting method, even other casting method is difficult to cast the complex, high temperature resistant, not easy machining casting, precision casting casting can be used to. So what does precision casting need to notice?
H3. The following points to be Shared in precision casting are as follows:
1.To prevent the precision casting chilling, besides take measures from the process, must make the wall thickness too thin, some data points out that when more than 15 mm wall thickness, the corner with a metal mold casting castings must be with rounded corners.
2.Since the metal and core are not allowed, the casting slant of precision casting should be larger than that of sand casting, which should be 30% to 50%.
3.The thickness of the inner wall and inner rib of the precision casting casting should be 0.6-0.7, otherwise, it is easy to crack in the inner and outer wall due to the slow cooling of the inner wall.
4.Because of the rapid heat dissipation of metal, the minimum wall thickness of precision casting should be larger than that of sand casting.