| 叉车合金钢轴头的水淬可控冷却工艺 |
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| 引用本文： | 肖结良,黄诚,麻先银.叉车合金钢轴头的水淬可控冷却工艺[J].金属热处理,2020,45(12):110-113. |
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| 作者姓名： | 肖结良 黄诚 麻先银 |
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| 作者单位： | 安徽合力股份有限公司 合肥铸锻厂,安徽 合肥 230601 |
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| 摘 要： | 分析了水的冷却特性、水淬可控冷却原理,利用水淬可控冷却和普通水淬两种方法对35CrMo合金钢叉车轴头进行了调质处理,并对调质后轴头的组织和微裂纹进行了检测。结果表明:水淬可控冷却调质轴头组织为细小均匀的回火索氏体,无微裂纹,硬度适中,符合技术要求;而普通水淬调质后轴头工件有1/3出现裂纹。可见,对水的起始温度、水和工件的质量比以及冷却时间加以控制,能够对形状复杂的合金钢轴头实现可控冷却,从而获得满意的淬火效果,实现清洁化热处理。
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| 关 键 词： | 轴头 合金钢 水淬 可控冷却 |
| 收稿时间： | 2020-06-19 |
Controlled water quenching cooling process of alloy steel shaft end for forklift |
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| Xiao Jieliang,Huang Cheng,Ma Xianyin.Controlled water quenching cooling process of alloy steel shaft end for forklift[J].Heat Treatment of Metals,2020,45(12):110-113. |
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| Authors: | Xiao Jieliang Huang Cheng Ma Xianyin |
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| Affiliation: | Hefei Casting and Forging Factory of Anhui Heli Co., Ltd., Hefei Anhui 230601, China |
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| Abstract: | Cooling characteristics of water and principle of controlled cooling of water quenching were analyzed. The shaft end of 35CrMo alloy steel forklift was quenched and tempered by means of controlled water quenching cooling and traditional water quenching, and the microstructure and microcracks of the quenched and tempered shaft end were tested. The results show that the quenched and tempered shaft end by controlled cooling has a fine and uniform tempered sorbite microstructure with moderate hardness and no microcracks, which meets the technical requirements. While 1/3 of the shaft ends quenched and tempered by traditional cooling has cracks. It can be seen that by controlling the initial temperature of water, the mass ratio of water to workpiece and cooling time, the alloy steel shaft end with complex shape can be cooled controllably, thus satisfactory quenching effect can be obtained and clean heat treatment can be realized. |
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| Keywords: | shaft end alloy steel water quenching controllable cooling |
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