Invention Grant
- Patent Title: Metal pouring method for the die casting process
- Patent Title (中): 金属浇注法铸造工艺
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Application No.: US14159866Application Date: 2014-01-21
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Publication No.: US09205491B2Publication Date: 2015-12-08
- Inventor: David D. Goettsch , Brad A. Ohlrich
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Dinsmore & Shohl LLP
- Main IPC: B22D17/30
- IPC: B22D17/30 ; B22D41/04 ; B22D17/00 ; B22D17/20

Abstract:
A method for delivering molten metal from a ladle to a die casting shot sleeve and a ladle and shot sleeve assembly. Both the ladle and a rotatable device coupled to the shot sleeve are made to rotate about respective axes as a way to reduce air entrainment and oxide film inclusions during the gravity filling of the shot sleeve with molten metal from the ladle. In a preferred form, the axis of rotation of the nozzle in the ladle is orthogonal to the axis of rotation of the shot sleeve rotatable device that is preferably placed in a horizontal filling direction. The nozzle is configured to deliver the molten metal through the lowest level of the shot sleeve when the ladle is rotated from a first position to a second position about its axis, followed by its rotation about a filling axis of the shot sleeve from a first angular position to a second angular position. At the second angular position, a die casting plunger can fill the casting cavity with the molten metal that has been delivered to the shot sleeve.
Public/Granted literature
- US20150202685A1 METAL POURING METHOD FOR THE DIE CASTING PROCESS Public/Granted day:2015-07-23
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