前言鞍钢大型厂从六二年初就接受了试制16Mn 高精度大桥角钢的试制任务,通过公司中央试验室大力协作,全厂职工在自立更生,奋发图强的思想指导下,克服了重重困难,终于试制成了20号等边及不等边两种角钢。六三年又在此基础上开始了成批生产。在大量生产过程中发现不少新问题,但基本上也得到了解决。本文就我们在试制和成批生产过程中所得到的一些初步经验作一简要的总结。一、低合金高精度大桥角钢的特点 Foreword Anshan Iron and Steel Large Plant from the beginning of June 1992 to trial production of 16Mn high-precision steel angle trial of the bridge through the company’s Central Laboratory vigorously collaboration, the entire factory workers in self-reliance, work hard under the guidance of the thought, to overcome the difficulties, and finally trial Become the No. 20 equilateral and unequal two angle steel. Six or three years on this basis, began mass production. In the mass production process found many new problems, but basically also been resolved. This article gives a brief summary of some of the initial experiences we have gained during trial and batch processes. First, low-alloy high-precision angle steel angle characteristics