树脂砂ZL107钟型罩针孔缺陷预防措施

Preventive Measures for Pinhole Defect of Resin Sand ZL107 Bell Jar

针对呋喃树脂砂发气量大以及钟型罩铸件本身的结构和铸铝件易吸气的特性,针对型砂工艺、造型工艺、熔炼工艺优化以及过程质量控制等方面,制定相应的措施,解决了该铸件的针孔问题。

In view of the large amount of gas generated by furan resin sand, the structure of bell jar casting and the suction characteristics of aluminum castings, corresponding measures were developed for the molding process, molding process, smelting process optimization and process quality control to solve the pinhole problem of the casting.