Vacuum die-casting system of die-casting machine
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DONGGUAN EONTEC CO LTD
- Publication Date
- 2011-01-26
- Estimated Expiration
- Not applicable Β· inactive patent
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Abstract
Description
technical field
[0001] The invention belongs to the technical field of metal forming. The invention relates to a vacuum die-casting technology, in particular to a vacuum die-casting system of a die-casting machine. Background technique
[0002] Die casting is a forming process in which liquid metal fills the mold cavity at a very high speed under high pressure, and cools and solidifies under pressure to obtain a casting. Since the molten metal fills the mold cavity in a high-speed injection state, most of the gas in the cavity is too late to be discharged, and is inevitably involved in the molten metal, and remains in the die casting in the form of pores, resulting in the formation of relatively large gas in the die casting. Serious porosity defects, there are certain problems in the inherent quality of the product, so ordinary die castings cannot be heat treated or welded, so the mechanical properties of the die casting itself cannot be further improved, and the expansion ...