| 摘要 |
PROBLEM TO BE SOLVED: To enable ceramic material to be securely fixed to metal. SOLUTION: A liner 1 is composed of an wear-resistant member 2 made of silicon nitride ceramics which is fixed by insert-casting of a metal 4 composed of high Cr alloy in such a manner that the wear-resistant member 2 is exposed on the surface of the metal 4. As silicon nitride ceramics can be expected to have a designated wear resistance due to high mechanical properties, compared with other ceramic materials such as alumina-based ceramics and the like, and due to the high strength kept even under high temperatures, and also, as it can withstand the heat of molten metal during casting due to low linear expansion coefficient and high thermal shock resistance, silicon nitride ceramics can be securely fixed to metal. COPYRIGHT: (C)2010,JPO&INPIT
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