请教35CrMo热处理,HRC最高能达到多少?

板料(200*65*8)
2025-04-07 11:15:55
推荐回答(1个)
回答1:

一般淬火不会超过54HRC。

35CrMo钢属中合金调质结构钢,因含0.8-1.1%的Cr和 0.15一0.25的Mo,被认为是具有较高淬透性和良好强韧性钢种,有资料指出此钢的理想临界直径达4英 (106mm)。

35CrMo钢制大件调质处理后冲击韧性等力学性能达不到要求的原因主要是组织中出现较大量的上贝氏体。而此钢大件调质组织中是否出现上贝氏体及其量的多少,又主要与原材料的冶金质量即钢中存在某种微量元素有关。避免形成较多上贝氏体的热处理工艺措施是加快淬火冷却速度。

扩展资料:

35CrMo热处理注意事项:

1、一般在退火(正火)状态下进行焊接。

2、焊接方法不受限制。

3、用较大线能量,适当提高预热温度,一般预热温度及层间温度可控制在250~300℃之间。

4、焊接材料应保证熔敷金属的成分与母材基本相同,如J107-Cr 5、焊后应及时进行调质热处理。若及时进行调质处理有困难,可进行中间退火或在高于预热的温度下保温一段时间,以排除扩散氢并软化组织,对结构复杂,焊缝较多的产品,可在焊完一定数量的焊缝后,进行一次中间退火。

参考资料来源:百度百科-35crmo

参考资料来源:百度百科-HRC

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