| 摘要 |
PROBLEM TO BE SOLVED: To more enhance durability by using a material excellent in erosion resistance and wear resistance for the inside of a wall part to improve the wear resistance and the erosion resistance and to enhance the joining strength between the material excellent in erosion resistance and wear resistance and the wall part. SOLUTION: A molten metal pouring hole 11 for supplying the molten metal is formed in the back-side of a cylindrical wall part 10, and the molten metal supplied from the molten metal pouring hole 11 is spouted from an opening hole 13 at the front-side with a plunger sliding the inner part. In the whole or a part of the inside of the wall part 10, a preform 20 sticking powdery cermet material 21 with a basic metal 22 by melting the basic metal 22, is exposed at the cermet material 21 side of the preform 20 and integrally formed with the insert-casting. COPYRIGHT: (C)2009,JPO&INPIT
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