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Precision casting need to pay attention to?

by:XEX     2020-11-18
Precision casting is a less cutting or no cutting casting process, is an excellent technology in the 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. Precision casting need to pay attention to what? Below to share precision casting considerations is as follows: 1. To prevent precision casting produced when 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. As there is no sex metal mold and core, and drew out for ease of casting, precision casting casting foundry slope should be the appropriate larger than that of sand mold casting, general thrown - 30% 50%. 3. Precision casting casting wall and the thickness of the rib in general should be connected to the outer wall thickness of 0. 6 - 0. 7, otherwise due to the wall, Rib) Cold slowly, when the casting shrinkage is easy to produce crack in internal and external wall of the junction. 4. Due to metal mold heat faster, so the precision casting, the minimum wall thickness should be larger than sand mold cast castings, all kinds of casting alloy, different sizes of casting the minimum wall thickness. Above is xin, Nicholson to share notes in the precision casting, precision casting hope everybody can pay more attention to the related issues.
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