沪东造船厂铸钢分厂使用再生机取得好效果该厂年产铸钢件约３０００吨，是我国采用有机酯水玻璃自硬砂最早的厂家之一，８０年代以来约８０％铸件使用此工艺获得效果．但新砂用量大旧砂却又大量抛弃，很不经济．９０年代通过调研选用了昆明工学院研究开发与内蒙二机总厂合... Hudong Shipyard Steel Plant to achieve good results using the recycling machine The annual output of about 3,000 tons of castings steel plant in China is the use of organic ester glass of hard sand one of the earliest manufacturers since the 1980s about 80% of castings to use this Process to obtain results. However, a large amount of new sand used sand but abandoned a lot, it is not economical. 90 years through the selection of research and development of Kunming Institute of Technology and Inner Mongolia Second Machine Plant together ...