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齿轮座铸件生产工艺与夹渣缺陷分析以及解决对策
Production Process,Slag Defect Analysis and Countermeasures of Gear Base Casting
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- DOI:
- 作者:
- 柯志敏 陈鹏辉
KE Zhimin;CHEN Penghui
- 作者单位:
- 广东中天创展球铁有限公司
Guangdong Zhongtian Chuangzhan Ductile Iron Co.,Ltd.,Yingde 513000,China
- 关键词:
- 夹渣缺陷 浇注温度 力学性能 金相组织
slag inclusion defect pouring temperature mechanical properties metallographic structure
- 摘要:
- 分析了齿轮座铸件的技术要求及生产难点,提出了齿轮座铸件铸造造型、熔炼工艺及其他各工艺参数的选择与控制,以及球化和孕育处理的管控方法;探讨了铸件夹渣缺陷的形成原因,提出了提高浇注温度、增加过滤网、管控冷铁等对策。结果表明,通过附铸试块的金相、力学性能以及超声波探伤检测,各指标均符合客户的技术质量要求,实现了质量稳定生产。The technical requirements and production difficulties of gear housing castings were analyzed,and the selection and control of casting modeling,melting process and other technological parameters of gear housing castings were put forward,as well as the control methods of spheroidization and inoculation treatment.The causes of slag inclusion defects in castings were discussed,and some countermeasures were put forward,such as increasing casting temperature,increasing filter net and controlling iron chiller.The results show that by means of the metallographic,mechanical properties and ultrasonic inspection of the attached casting test block,all the indexes meet the technical quality requirements of customers,and the stable quality production is achieved.