开发了一种车用发动机轻量气门弹簧用的高强度油浴回火钢丝,通过添加钼、钒、硼和镍元素,抗拉强度比传统油浴回火钢丝的提高了20%。由于提高了抗拉强度,可以通过减小弹簧尺寸来减小气门弹簧常数。其结果使弹簧的负荷得以降低,从而降低了燃油耗。 Developed a high strength oil bath tempered steel wire for automotive engine light valve springs with a 20% increase in tensile strength over conventional oil bath tempered steel wires by the addition of molybdenum, vanadium, boron and nickel. Due to the increased tensile strength, the valve spring constant can be reduced by reducing the spring size. As a result, the load on the spring is reduced, resulting in lower fuel consumption.