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南昌柴油机厂每天生产柴油机铸铁件15～25吨,清砂工作量很大。1969年底水爆清砂投入生产,1971年底水爆旧砂再生系统投入生产,组成了水爆清砂及旧砂再生生产线,大大提高了劳动生产率、减轻了体力劳动和改善了劳动环境。目前,该厂生产的105系列和85系列共11种型号的柴油机汽缸体和汽缸盖等较大的、带砂芯的铸件,已采用了水爆清砂作业,每天可回用再生旧砂10～20吨。
Nanchang Diesel Engine Die Casting Diesel daily production of 15 to 25 tons, a lot of sand work. At the end of 1969, blasting clear sand was put into production. At the end of 1971, the water blasting and reclamation of old sand was put into production to form a production line of water blasting sand and old sand, which greatly enhanced labor productivity, reduced physical labor and improved working environment. At present, the factory produced 105 series and 85 series of 11 models of a total of 11 types of diesel engine cylinder block and cylinder head and other larger, with sand core castings, has adopted a water blasting sand operation, the daily use of recycled old sand 10 ~ 20 tons.