4H缸体水套内腔烧结粘砂缺陷分析及对策  

Analysis and Countermeasures of Sand Sintering Defects in Water Jacket Cavity of 4H Cylinder Block

作　　者：刘军晖 温洪洪 陈世斌 张世伟 LIU Junhui;WEN Honghong;CHEN Shibin;ZHANG Shiwei(YTo(Luoyang)Casting&Forging Co.,Ltd.,Luoyang 471000,China;Henan Weiye New Materials Co.,Ltd.,Pingdingshan 467000,China)

机构地区：[1]一拖(洛阳)铸锻有限公司,河南洛阳471000 [2]河南伟业新材料有限公司,河南平顶山467000

出　　处：《铸造技术》2020年第11期1050-1052,1053,共4页Foundry Technology

摘　　要：公司生产的4H干式缸套缸体,水套内腔烧结粘砂问题一直得不到很好的解决。采用局部预浸涂加整体浸涂、烘干后局部人工补刷涂料的3次施涂工艺,改进效果依然不理想。采用M590A涂料对水套芯进行一次浸涂,取消了预浸涂及烘干后人工补刷涂料的复杂工序,成功解决了4H缸体水套内腔烧结缺陷,提高了生产效率、降低了生产成本、降低了铸件废品率。The problem of sintering the inner cavity of the 4 H dry cylinder liner produced by the company had not been well solved.The improvement effect was still not ideal after three times application of partial pre-dip-coating plus integral dip-coating and partial manual rebrush coating after drying.The results show that M590 A coating is used to presoak the water jacket core,and the complicated process of pre-dip-coating and manual paint brushing after drying is eliminated,and the defect of sintering of 4 H cylinder block inner cavity is successfully solved,which improves the production efficiency,reduces the production cost and reduces the casting rejection rate.

关 键 词：干式缸套缸体 水套芯 烧结 预浸涂 补刷涂 M590A涂料 

分 类 号：TG245[金属学及工艺—铸造]