Explanation
The general term of foundry methods for obtaining castings with accurate shape and size and good surface quality by precision mold. The castings of precision casting not only have high dimensional accuracy, but also have smooth surface, clear contour and line, and can be processed without or less. precision casting methods mainly include: ① using fine refractory and special adhesive to make mold with smooth cavity surface, accurate size and high strength, such as shell mold casting, expenable pattern casting, ceramic mold casting, plaster mold casting, etc.; ② Adopt solid molding method to obtain integral mold with accurate size, such as expenable pattern casting, full mold casting, etc.; ③ Adopt mold with smooth cavity surface and accurate size, such as metallic mold casting, die-casting, etc.; ④ Use pressure and centrifugal force to improve efficiency of spare filling of castings, such as die-casting, centrifugal casting, low pressure casting, liquid metal forging, etc.
Classification
No classification at present.