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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
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- DOI:
- 作者:
- 刘军晖 温洪洪 陈世斌 张世伟
LIU Junhui;WEN Honghong;CHEN Shibin;ZHANG Shiwei
- 作者单位:
- 一拖（洛阳）铸锻有限公司 河南伟业新材料有限公司
YTo(Luoyang)Casting&Forging Co.,Ltd.,Luoyang 471000,China;Henan Weiye New Materials Co.,Ltd.,Pingdingshan 467000,China
- 关键词:
- 干式缸套缸体 水套芯 烧结 预浸涂 补刷涂 M590A涂料
Dry sand block water jacket core sintering sand defect pre-dipping repairing brushing M590A coating
- 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.