| 30CrMnSiA钢外齿摩擦片的工艺改进 |
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| 引用本文： | 周洪刚,刘克,熊明定,王鑫铭,余杰,左经纬.30CrMnSiA钢外齿摩擦片的工艺改进[J].金属热处理,2023,48(4):143-147. |
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| 作者姓名： | 周洪刚 刘克 熊明定 王鑫铭 余杰 左经纬 |
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| 作者单位： | 1.江麓机电集团有限公司, 湖南 湘潭 411100;2.湘潭大学 材料科学与工程学院, 湖南 湘潭 411105 |
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| 摘 要： | 为实现30CrMnSiA钢外齿摩擦片的大批量生产，解决其单件生产工序繁琐、生产效率低及生产成本高等问题，对热轧板进行工艺试验研究。得出最优的生产工艺为(735±3)℃×(13～15) h球化退火+冷轧+精冲+860℃×60 min油淬+380℃×60 min预回火+550℃模压碟形回火+氧化处理，其中模压碟形回火宜采用增加中间层的改进模具，可实现较高的装炉数量(60件/模)和100%的产品合格率，所得摩擦片的显微组织为回火索氏体，晶粒度为8.5级。小批量生产的10套摩擦片均通过考核验证且无异常，性能满足要求。
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| 关 键 词： | 摩擦片 碟形 精冲 热成形 |
| 收稿时间： | 2022-09-23 |
Process modification of 30CrMnSiA steel external gear friction disc |
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| Zhou Honggang,Liu Ke,Xiong Mingding,Wang Xinming,Yu Jie,Zuo Jingwei.Process modification of 30CrMnSiA steel external gear friction disc[J].Heat Treatment of Metals,2023,48(4):143-147. |
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| Authors: | Zhou Honggang Liu Ke Xiong Mingding Wang Xinming Yu Jie Zuo Jingwei |
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| Affiliation: | 1. Jianglu Machinery & Electronics Group Co., Ltd., Xiangtan Hunan 411100, China;2. School of Materials Science and Engineering, Xiangtan University, Xiangtan Hunan 411105, China |
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| Abstract: | In order to realize the mass production of 30CrMnSiA steel external gear friction plate and solve the problem of single piece production process such as tedious process, low production efficiency and high cost, the process test of hot-rolled plate was studied. The optimal production process is obtained, which consists of spheroidizing annealing at (735 ± 3) ℃ for 13-15 h, cold rolling, fine blanking, austenitizing at 860 ℃ for 60 min and oil quenching, and then pre-tempering at 380 ℃ for 60 min, molded disc tempering at 550 ℃ and oxidation treatment. In addition, using the improved hot forming die with increasing intermediate layer for the molded disc tempering can achieve a higher charging number (60 pieces per mold) and 100% product qualification rate. The microstructure of the obtained friction plate is tempered martensite, and the grain size is 8.5 grade. Furthermore, the 10 sets of gear friction disc produced in small batch pass the examination and are normal, and the properties meet the requirements. |
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| Keywords: | friction plate disking fine blanking hot-forming |
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