<p>Apparatus and methods for simultaneously testing molten metal, such as steel, for concentration of three or more dissolved gases. A gas flow manifold allows multiple calibrations of a gas analysis device independently of operations such as immersion and purging of an immersible probe that can be provided with a bypass conduit for gas flow directly to the analysis device. Accurate nitrogen content is determined by oxidizing a retrieved gas sample using heated CuO and measuring gas concentration of the gas before and after such oxidation. A gas reservoir can be used to temporarily store a portion of the retrieved gas for use in such testing.</p>
申请公布号
WO2006031905(A1)
申请公布日期
2006.03.23
申请号
WO2005US32775
申请日期
2005.09.14
申请人
MIDWEST INSTRUMENT COMPANY, INC.;KREUSER, JOSEPH, J.;JUNKER, THOMAS, W.;FALK, RICHARD, A.
发明人
KREUSER, JOSEPH, J.;JUNKER, THOMAS, W.;FALK, RICHARD, A.