High alloyed valve seats,taken Fe (11~13)Cr (0 5~2)Mo (1 8~2 5)C (2~4)Me as raw material,were fabricated in high quality by P/M sintering infiltration process.
采用粉末冶金烧结熔浸工艺制备出以Fe ( 1 1~ 1 3)Cr ( 0 5~ 2 )Mo ( 1 8~ 2 5)C ( 2~ 4 )Me为原料的高合金、高性能粉末冶金气门座圈 ;并简要介绍了该气门座圈的密度、硬度、抗热冲击、机加工性能以及组织结构。