摘要
本文作者经多年可控硅中频感应电炉熔炼、湿态粘土砂造型生产液压铸钢件的生产实践，总结了从金属料处理、配砂、熔炼、脱氧等主要工艺环节上，消除气孔缺陷的措施．
Air holes are often found in steel castings cast in green sand mould. Some tnethods are drawn from the authors. practice' The methods deal with a series of processes such as row metals treating, sand ndalng, matal me1ting, deoxiding and so on.
