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无牌坊轧机(短应力线轧机)是1980～1981年冶金部重点科研项目,经北京钢铁学院和北京冶金设备试制厂近两年的合作研制,已于1981年7月在北京钢铁学院实验厂试生产。经过两个月使用,共轧制不锈钢和高速工具扁钢72吨。测试结果表明,达到了设计的预定目标,所轧制的产品尺寸精度有明显提高,对来料尺寸及温度坡度适应性强。该轧机由冶金部于1981年12月组织了鉴定,认为:(1)该轧机系根据现代先进的短应力线设计原理研制成功的新型高刚度轧
Unlicensed square mill (short stress line rolling mill) is a key scientific research project of Ministry of Metallurgical Industry from 1980 to 1981. It was developed in cooperation with Beijing Institute of Iron and Steel and Beijing Metallurgical Equipment Trial Plant in recent two years. It was tested in the experiment plant of Beijing Institute of Iron and Steel in July 1981 produce. After two months of use, a total of 72 tons of flat rolled stainless steel and high-speed tool. The test results show that the intended target of the design has been achieved, the dimensional accuracy of the rolled product has been significantly improved, and the adaptability to incoming material size and temperature gradient is strong. The mill was appraised by the Ministry of Metallurgy in December 1981 as follows: (1) The mill is a new type of high-rigidity rolling developed successfully according to the modern and advanced design principle of short stress lines