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红沿河核电站5、6号机组主给水泵精加工工艺设计及实践
Design and Practice of Finish Machining Process for Main Feed Pump of Hongyanhe Nuclear Power Plant Unit 5&6
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- DOI:
- 作者:
- 刘克新 徐继坤 刘侠
LIU Kexin;XU Jikun;LIU Xia
- 作者单位:
- 洛阳双瑞特种装备有限公司 上海爱驰亿维汽车销售公司
Luoyang Shuangrui Special Equipment Co.,Ltd.,Luoyang 471003,China;Shanghai Aiways Automobile Sales Co.,Ltd.,Shanghai 200000,China
- 关键词:
- 核电站 主给水泵 加工工艺 现场审核
nuclear power plant main feed pump processing technology On-site audit
- 摘要:
- 设计了主给水泵铸件的精加工工艺方案,通过合理的加工、检测工步设置,同时满足第三方现场要求,并且兼顾铸件缺陷的排查和修复,避免了由于大型铸件加工缺陷审核不通过及反复多次审核的情况。结果表明,机械加工工艺方案合理、工艺流程顺畅,解决了马氏体钢大型高精度铸件的尺寸、形位公差、焊补维修、焊后热处理及现场审核等工序的关系,产品质量达到标准要求。
The finish machining process scheme of the casting of the main feed pump was designed.Through reasonable processing and testing steps,the site requirements of the third party were met,and casting defects were investigated and repaired,so as to avoid the failure and repeated audit of large castings due to processing defects.The results show that the machining process scheme is reasonable and the process flow is smooth,and the relationship between the size,shape and position tolerance,welding repair and maintenance,post-welding heat treatment and site audit of large precision casting of martensitic steel is solved,and the product quality meets the standard requirements.