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首页> 外文会议>2002 World Congress on Powder Metallurgy amp; Particulate Materials Pt.2 Jun 16-21, 2002 Orlando, FI >Valve Seat Insert Material with Good Machinability
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Valve Seat Insert Material with Good Machinability

机译：阀座嵌件材料，具有良好的机械加工性

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摘要

Valve seat inserts are used in the valve train area of internal combustion engines. The demands on valve seat inserts are not only for good heat and wear resistance but also for good machinability. This report therefore introduces a new valve seat insert material, which has superior machinability and which fulfils the demands just mentioned. The sintered materials used in this report are made of a mixture of manganese containing iron powder and certain types of sulfide powder, and have superior machinability due to precipitation of the fine MnS particles in the matrix. In the case of the molybdenum disulfide powder, the sulfur bonds with the manganese of the iron powder. This machinability improvement technique was developed and the new technology is now being applied as a good machinability material for intake valve seat inserts in gasoline engines.
机译：气门座垫用于内燃机的气门机构区域。对阀座嵌件的要求不仅是要获得良好的耐热性和耐磨性，而且还要具有良好的切削性。因此，本报告介绍了一种新的阀座嵌件材料，该材料具有出色的机械加工性，并且可以满足上述要求。本报告中使用的烧结材料是由含锰的铁粉和某些类型的硫化物粉末的混合物制成，并且由于细小的MnS颗粒在基体中的沉淀而具有优异的切削性。在二硫化钼粉末的情况下，硫与铁粉末的锰结合。开发了这种可机加工性改进技术，并且该新技术现在已被用作汽油发动机进气门座嵌件的良好可机加工性材料。

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