降低B10/B12缸体铸件粘砂缺陷的工艺实践  

Technology Practice to Reduce Sand Burning Defect in B10/B12 Cylinder Block Castings

作　　者：赵璐 

机构地区：[1]柳州五菱柳机动力有限公司技术工程部,广西柳州545005

出　　处：《铸造技术》2014年第5期1099-1101,共3页Foundry Technology

摘　　要：为降低B10/B12缸体铸件粘砂缺陷,采取提高型砂中煤粉比例、使用粒度为70/140的覆膜砂、提高砂芯质量、降低浇注温度的措施。措施实施后,粘砂缺陷率由14.30%下降至0.47%,有效降低铸件的粘砂比例。To reduce sand burning defects in B10/B12 cylinder castings, the measurements, such as improving the coal powder proportion in mould sand, using coated sand with grain size 70/140, improving the quality of sand core, lowering pouring temperature, and so on, were taken. After the implementation of these measurements, the rate of sand burning defects decreases to 0.47% from 14.30%, effectively reducing the proportion of sand burning in castings.

关 键 词：铸件 粘砂 型砂 覆膜砂 

分 类 号：TG24[金属学及工艺—铸造]