发明名称 |
Vacuum valve design for die casting |
摘要 |
A method for determining the size of the open area of a vacuum valve for use in a die casting operation is disclosed. The invention determines the size primarily as a function of the total length of the exterior parting lines of the die. Apparatus for producing die castings is disclosed which has a vacuum valve with a specified open flow area.
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申请公布号 |
US5293693(A) |
申请公布日期 |
1994.03.15 |
申请号 |
US19920874368 |
申请日期 |
1992.04.27 |
申请人 |
OUTBOARD MARINE CORPORATION |
发明人 |
NELSON, CRAIG A.;VANRENS, RUSSELL J. |
分类号 |
B22D17/22;B22D17/14;(IPC1-7):G01B5/26;B22D17/20 |
主分类号 |
B22D17/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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