Pressure Die-casting is similar to permanent mold casting except that the metal is injected into the mold under high pressure of 7-350Mpa (1,000-50,000) psi. This high pressure will not be removed till the solidification is finished.
Pressure wax (wax wax injection molding) --- repair Wax ---- Wax seized ---- group tree (December module tree) --- system shell (first dip syrup, pour the sand, and then dip paste, and finally mold.
The aluminum die casting in alkaline solution, the crack was dark gray metal matrix destruction and split straight or wavy, lines narrow and long. The types of die casting products was diversified, including.
Steel castings themselves can participate in the general assembly without processing, such as track chains, etc., but most of the casting to be formed after processing parts.
Precision castings in the production process because of some hardware facilities, management, casting cooling, and correcting the problems, will produce castings deformation problem, then we encounter when casting distortion how to go about it?