发明名称 |
VERFAHREN ZUR HERSTELLUNG EINES FEUERFESTEN GEGENSTANDES UND EIN DADURCH HERGESTELLTER FEUERFESTER GEGENSTAND |
摘要 |
A refractory material powder of a carbide-forming metal or alloy is formed into an intermediate body having a shape and size corresponding to the desired shape and size of the article. The intermediate body is exposed to a gaseous hydrocarbon or a mixture of hydrocarbons at a temperature exceeding the decomposition temperature for the hydrocarbon or hydrocarbons until the mass of the intermediate body has increased by at least 3%. The intermediate body is thereafter exposed to a temperature of 1000-1700° C. in an inert atmosphere if the temperature during exposure to the hydrocarbon or hydrocarbons was too low to ensure a complete carbidization of the intermediate body. |
申请公布号 |
DE69706442(D1) |
申请公布日期 |
2001.10.04 |
申请号 |
DE1997606442 |
申请日期 |
1997.03.27 |
申请人 |
FRENTON LTD., DOUGLAS |
发明人 |
BIRUKOV, ANATOLY;GORDEEV, SERGEY;MOROZOV, VLADIMIR;ZHUKOV, SERGEY |
分类号 |
C04B35/56;C04B35/65;C04B38/00;C04B41/51;C04B41/88;C22C1/05;C22C1/10;(IPC1-7):C04B35/65;C23C8/20 |
主分类号 |
C04B35/56 |
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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