【摘要】 叙述了Ｎｉ － Ｗ 合金铸铁用于发动机气门座的依据、试验方案、测试结果和分析讨论。证明用这种材料制成的气门座，能够满足强化发动机进程的要求。更多还原

【Abstract】 Manufacturing on Ni-W alloy cast iron engine air valve seat,the theory basis, experiment plan and result and mechanism were discussed The results have shown that engine air valve containing Ni-W can meet the requirement of engine strengthening更多还原