WD615缸盖随流孕育工艺研究  

Research of Stream Inoculation Process on WD615 Cylinder

作　　者：李永刚 董志鹏 张行河 

机构地区：[1]潍柴重机股份有限公司,山东潍坊261001 [2]潍柴动力股份有限公司,山东潍坊261001

出　　处：《汽车零部件》2014年第9期59-63,共5页Automobile Parts

摘　　要：为解决铸铁材料孕育衰退问题,提高材料性能,某公司引进了随流孕育工艺。但在应用过程中,出现材料强度下降、金相组织无改善等现象,与预期目标相差较大。为此,决定以WD615缸盖为对象进行试验,对随流孕育工艺进行评估。试验结果表明:铁水的碳当量、硫含量、高温静置时间及孕育剂种类等因素是造成随流孕育效果不明显的原因。To solve the problem of inoculation fade, and improve material performance, a company introduced the instant steam inocula- tion process. But in the application process, phenomenon of decline strength and no improvement in microstructure appeared, which had a larger difference with the expected goal. So, taking WD615 cylinder head as test object, instant steam inoculation process was evaluated. The re- sults show that carbon equivalent and sulfur content of the molten iron, high temperature holding time and inoculant type are the reasons which cause stream inoculation effect not obvious.

关 键 词：随流孕育 灰铸铁 缸盖 

分 类 号：U466[机械工程—车辆工程] TG251[交通运输工程—载运工具运用工程]