Patent Number: 6,308,766

Title: Process for die-casting light-weight metals

Abstract: A process for die-casting aluminum and aluminum alloys is such that themolten metal is introduced into a filling chamber and injected from thefilling chamber into a mold cavity by a piston. The mold cavity isevacuated in advance, after which it is flooded with oxygen. Afterflooding with oxygen and before injecting the molten metal into it, themold cavity is again evacuated. Finally, the molten metal is injected intothe hollow mold cavity. The process enables die-cast parts to be producedwith low tendency to forming pores and blisters.

Inventors: Thurner; Hans (Baldham, DE)


International Classification:

Expiration Date: 10/32013