本文译自“American Foundryman”1949年4月号,原作者 Henry W.Zimnawoda,对于一个从事于现代化大量生产的工厂,在计划翻砂工场机械化的准备工作中,颇有帮助。原文中尚有照片图若干帧,因属次要,为节省篇幅及铜版计,已略去。—— This article was translated from the April 1949 issue of “American Foundryman”. The original author, Henry W. Zimnawoda, was very helpful in the preparation of a large-scale modernization plant in preparation for the mechanization of the sand-turning workshop. There are still several photo frames in the original text, which are secondary because they have been omitted. -