Analyzes the reason of the white defects appearing in the lostpatterncasting and puts for - ward some effective preventive measures referenced with the production reality.
分析了消失模铸造的铸件出现白色缺陷的原因，并根据生产实际提出了一些有效的预防措施。
2
Results showed that compared with sand casting castings, dimension precision and quality of lostpattern castings can be improved and rate of finished products can be increased up to65percent.
结果表明，与砂型铸件相比，消失模法生产的铸件尺寸精度及质量提高，工艺出品率提高到65%以上。
3
In lost foam casting (LFC), the foam pattern is the key qualification, and the filling process is one of the crucial processes to ensure the high quality of the foam pattern.