发明名称 |
PLASMA MELTING FURNACE |
摘要 |
A plasma melting furnace includes a water-cooled bottom electrode of copper and a temperature probe connected with the bottom electrode. A wearing part of steel is provided in the bottom of the furnace, covering the bottom electrode. At least one counter electrode is arranged at a distance above the wearing part for the formation of the plasma jet. In order to prevent the risk of a melting through of the bottom electrode as far as to its water-cooled section on account of a secondary arc, a metal layer is provided between the bottom electrode and the wearing part. The metal layer is formed by a metal having a low thermal conductivty and a low melting point, as compared to copper, as well as a high melting enthalpy. Preferably, a metal layer of lead or its alloys with tin and/or zinc is provided. |
申请公布号 |
DE3163776(D1) |
申请公布日期 |
1984.06.28 |
申请号 |
DE19813163776 |
申请日期 |
1981.12.28 |
申请人 |
VOEST-ALPINE AKTIENGESELLSCHAFT |
发明人 |
LUGSCHEIDER, WALTER, DIPL.-ING. DR.;RIEGLER, ERNST;ZAJICEK, ERNST |
分类号 |
H05B7/18;C22B9/22;F27B3/08;F27D11/08;F27D99/00;H05B7/06;H05H1/32;H05H1/34;(IPC1-7):F27B3/08;H05B7/02 |
主分类号 |
H05B7/18 |
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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