一种高耐磨弹性车轮用轮箍及其热处理工艺
一种高耐磨弹性车轮用轮箍及其热处理工艺
本发明提供了一种高耐磨弹性车轮用轮箍及其热处理工艺，成分为C：0.44～0.47％，Si：0.55～0.70％，Mn：0.45～0.60％，Cr：1.30～1.50％，Ni：0.20～0.30％，Mo：0.35～0.45％，V：0.065～0.10％，P≤0.010％，S≤0.008％，T[O]≤0.0010％，[N]：0.0050～0.0070％，Al：0.015～0.030％，其余为Fe和其它不可避免的杂质。采用预备热处理+高温淬火+亚温淬火+中温回火后的组织为细密回火索氏体+少量贝氏体，近表面回火索氏体90％及以上，具有更优异的抗滚动接触疲劳性能和耐磨性，提高轮箍全寿命周期服役稳定性。
The invention provides a wheel rim for a high-wear-resistance elastic wheel and a heat treatment process of the wheel rim. The wheel rim comprises the following components: 0.44 to 0.47 percent of C, 0.55 to 0.70 percent of Si, 0.45 to 0.60 percent of Mn, 1.30 to 1.50 percent of Cr, 0.20 to 0.30 percent of Ni, 0.35 to 0.45 percent of Mo, 0.065 to 0.10 percent of V, less than or equal to 0.010 percent of P, less than or equal to 0.008 percent of S, less than or equal to 0.0010 percent of T [O], 0.0050 to 0.0070 percent of [N], 0.015 to 0.030 percent of Al and the balance of Fe and other inevitable impurities. The structure obtained after preheat treatment, high-temperature quenching, subcritical quenching and medium-temperature tempering is fine tempered sorbite and a small amount of bainite, 90% or more of the tempered sorbite is close to the surface, more excellent rolling contact fatigue resistance and wear resistance are achieved, and the service stability of the tire in the whole life cycle is improved.
Document information
一种高耐磨弹性车轮用轮箍及其热处理工艺
2023-08-11
Patent
Electronic Resource
Chinese