STOPPER FOR RELIABLE GAS INJECTION

申请公布号：CA2447072(C)

申请号：CA20022447072

申请日期：2002.06.12

申请公布日期：2010.08.10

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

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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