发明名称 |
STOPPER FOR RELIABLE GAS INJECTION |
摘要 |
The present invention concerns a mono-block stopper adapted to deliver gas during pouring of molten metal comprising a stopper body having an internal chamber (1) and a gas discharge port (2), a bore (3) connecting the internal chamber (1) to the gas discharge port (2), calibrating means (4) being provided in the bore (3) to provide a restricted path. This stopper is characterised by the fact that the calibrating means comprise a rod (4) having at least one axially-extending gas passages theralong, the gas passage(s) having a section such as to offer a predetermined resistanceto flow. The stopper of the invention is far more reliable and can be easily adapted to various operational parameters.
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申请公布号 |
CA2447072(C) |
申请公布日期 |
2010.08.10 |
申请号 |
CA20022447072 |
申请日期 |
2002.06.12 |
申请人 |
VESUVIUS CRUCIBLE COMPANY |
发明人 |
RICHARD, FRANCOIS-NOEL;HANSE, ERIC |
分类号 |
B22D11/10;B22D41/18;B22D41/16;B22D41/42;C04B35/101 |
主分类号 |
B22D11/10 |
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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