发明名称 |
APPARATUS FOR THE DETECTION AND MEASUREMENT OF PARTICULATES IN MOLTEN METAL |
摘要 |
A probe for insertion into molten metal to detect and measure particulates suspended therein includes an inner tube of an electrically insulated materi al forming a metal receiving chamber, the tube having an orifice to permit molten metal to flow into the chamber. A first electrode extends into the chamber for engaging metal within the chamber and a second electrode surrounds at least a portion of the inner tube for engaging molten metal outside of the chamber. The electrodes may be connected to a measurement device for establishing a current path through the electrodes and passing through the orifice for measuring changes in the electrical potential produced by the passage of particulates entrained in th e molten metal passing through the orifice. An outer sheath of heat resistant material surrounds a portion of the second electrode and a gas passageway extends out of the inner tube for connecting to a vacuum source to create a pressure differential within the chamber for facilitating the flow of molten metal through the orifice. A liquidus depressing material is in the chamber for alloying with molten metal entering the chamber to lower the liquidus temperature of the molten metal and permit a longer time period for detecting and measuring particulates in the molten metal. |
申请公布号 |
CA2389938(C) |
申请公布日期 |
2009.07.14 |
申请号 |
CA20012389938 |
申请日期 |
2001.09.10 |
申请人 |
HERAEUS ELECTRO-NITE INTERNATIONAL N.V. |
发明人 |
CONTI, RICHARD F.;KOPANSKY, GREGORY;MCCAULEY, WILLIAM |
分类号 |
G01N15/00;G01N15/12;G01N1/00;G01N1/10;G01N1/12;G01N27/04;G01N27/06;G01N27/403;G01N33/20 |
主分类号 |
G01N15/00 |
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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