B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 18/04 (2006.01)
Patent
CA 2053867
- 10 - ABSTRACT Low pressure chill casting method for casting metal cast components. A low pressure chill casting method for casting metal components such as cylinder heads or engine blocks o combustion engines or the like, which cast components have wall portions which are locally predominently thinner than in their other regions. In this method, by means of gas pressure, liquid metal is forced from a melt container through a riser tube into a mold. According to the invention, the mold is so arranged that therein the thicker wall portion of the cast component is cast upwardly remote from the gating and the thinner wall portion is cast downwardly in the vicinity of the gating, the liquid metal being introduced at or near the lower region of the mold in the vicinity of the gating into the mold cavity region forming the thinner wall portion. In this connection, liquid metal can be introduced through a base runner at a plurality of gating positions to the lower region of the mold lying in the vicinity of the gating into the mold cavity region forming the thinner wall portion of the cast component.
Bilz Georg
Dobner Alfred
Lammermann Hans
Rieb Klaus
Sterner Klaus
Alcan Deutschland Gmbh
Fetherstonhaugh & Co.
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