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1985年6月23—26日在成都工具研究所召开了一次“低合金优质高速钢(简称DH钢试验工作会议”。出席会议的有来自全国12个单位20多名代表。会上,各单位将DH钢近期试验情况作了交流汇报。工具所首先介绍了DH钢的研究目的,国内外情况,成份设计指导思想以及从1974年以来,先后在上海材料所用60公斤高频,上钢五厂用150公斤中频数次冶炼、加工及试验工作情况和筛选过程。长城钢厂介绍了从1980年开始试用430公斤中频和3吨电炉对DH钢冶炼试制、锻轧加工。冶金质量控制等试验情况。哈尔滨第二工具厂、衡阳量具刃具厂、云南工具厂、本溪工具厂等分别介绍了DH
June 23-26, 1985 Chengdu Institute of Tools held a “low-alloy high-speed high-speed steel (DH steel test work conference.” Attended by 12 representatives from more than 20 delegates at the meeting, the units The DH steel made a briefing on the recent test conditions.The tool firstly introduced the research purpose of DH steel, the situation at home and abroad, the guiding ideology of composition design and the principle of component design since 1974. It has used 60 kilograms of high-frequency, With 150 kilograms of intermediate frequency smelting, processing and testing work and screening process.Changcheng Steel Mill introduced from the trial since 1980, 430 kilograms of intermediate frequency and 3 tons EAF DH steel smelting trial, forging processing, metallurgical quality control test conditions Harbin Second Tools Factory, Hengyang Measuring Tool & Cutter Factory, Yunnan Tools Factory, Benxi Tools Factory introduced DH