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    • 9. 发明授权
    • Internal combustion engine valve
    • 内燃机阀门
    • US5611306A
    • 1997-03-18
    • US512392
    • 1995-08-08
    • Yuji Takano
    • Yuji Takano
    • B23K35/30C22C30/00F01L3/02F01L3/04
    • F01L3/02B23K35/3046C22C30/00F01L3/04
    • There is provided an internal combustion engine valve having a body, a head, and a contact surface disposed on a head surface to be adapted to periodically enter into gas-sealing engagement with a valve seat, said contact surface being formed in alloy deposit welded to said valve head, by a high density energy beam such as a plasma beam or a laser beam, on said head surface, a cobalt based composition of said alloy deposit, measured at said contact surface, consisting essentially ofcarbon: 2.2 to 2.6 weight percent;silicon: 1.1 to 1.3 weight percent;manganese: 2.6 to 3.1 weight percent;nickel: not more than 1.5 weight percent;chromium: 28 to 31 weight percent;iron: 10 to 11 weight percent;tungsten: 13.5 to 15.5 weight percent;balancing cobalt and inevitable amount of impurities.
    • 提供了一种内燃机阀,其具有设置在头表面上的主体,头部和接触表面,以适于周期性地与阀座进行气密接合,所述接触表面形成为焊接到 所述阀头,通过诸如等离子体束或激光束的高密度能量束在所述头表面上,在所述接触表面处测量的所述合金沉积物的基于钴的组合物基本上由碳组成:2.2至2.6重量% ; 硅:1.1〜1.3重量% 锰:2.6〜3.1重量% 镍:不超过1.5重量%; 铬:28〜31重量% 铁:10〜11重量% 钨:13.5〜15.5重量% 平衡钴和不可避免的杂质量。