Steel wire for high strength spring with excellent shaving property, and high strength spring
    89.
    发明专利
    Steel wire for high strength spring with excellent shaving property, and high strength spring 有权
    高强度弹簧钢丝绳,高强度弹簧

    公开(公告)号:JP2013213238A

    公开(公告)日:2013-10-17

    申请号:JP2012083005

    申请日:2012-03-30

    摘要: PROBLEM TO BE SOLVED: To provide a steel wire for a high strength spring which has good shaving properties and good discharging properties of shavings, and also can exhibit good SV treatment properties such that no disconnection is generated during SV treatment, and to provide the high strength spring obtained by using such a steel wire for a high strength spring as a raw material.SOLUTION: A steel wire for a high strength spring is a steel wire after hot rolling, has predetermined chemical component composition, and has structure including mainly pearlite, wherein an average value Pave of grain size number of pearlite nodules satisfies the following formula (1) 6.0≤Pave≤12.0, also the total decarburized depth of a surface layer is 0.20 mm or less, and the total amount of Cr-based alloy carbide is 7.5% or less.

    摘要翻译: 要解决的问题:为了提供具有良好的剃刮性和良好的刨花排出性的高强度弹簧用钢丝,并且还可以表现出良好的SV处理性能,使得在SV处理中不产生断线,并且提供高 通过使用这种用于高强度弹簧的钢丝作为原料获得的强度弹簧。解决方案:用于高强度弹簧的钢丝是热轧后的钢丝,具有预定的化学成分组成,并且具有主要包括珠光体, 其中珠光体结核粒径数的平均值Pave满足下式(1)6.0≤Pave≤12.0,表面层的总脱碳深度也为0.20mm以下,Cr系合金碳化物的总量 为7.5%以下。