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省冶金厅于今年元月12—13日在石家庄主持召开了河北省冶金研究所与石家庄手表厂共同研制的小型冷作模具钢(9CrMn_2WMoV及8 CrMnWMoV)的技术鉴定会。来自省內外有关手表、机械、冶金等行业和院所的代表对会议提供的资料数据进行了认真的审查并到现场进行了观测。鉴定结果认为该钢种具有如下特点:1、低含量多元素的综合合金化途径。2、热处理操作简单,易于切削加工。3、硬度和韧性配合良好,克服了脆断现象。4、寿命比CrWMn和Cr_(12)MoV显著提高,该钢种在石家庄手表厂用做
Provincial Metallurgical Department January 12-13 this year, held in Shijiazhuang, Hebei Metallurgical Institute and Shijiazhuang Watch Factory jointly developed a small cold-work die steel (9CrMn_2WMoV and 8 CrMnWMoV) technical appraisal. From inside and outside the province on the watch, machinery, metallurgy and other industries and institutions on behalf of the meeting to provide information on the data was carefully reviewed and observed to the scene. Identification results that the steel has the following characteristics: 1, low content of multi-element alloying approach. 2, heat treatment is simple, easy cutting. 3, hardness and toughness with good, to overcome the brittle fracture phenomenon. 4, life expectancy than CrWMn and Cr_ (12) MoV significantly increased, the steel used in Shijiazhuang Watch Factory