《机车车辆零件热处理通用技术条件》部标准(TB1617—85)已由铁道部以(85)铁科技字1299号文件批准下达,将于1987年1月1日起正式实施。为便于贯彻,现就一些主要问题说明如下: 一、制订标准的必要性铁路机车车辆零件的热处理多年来各生产工厂无统一的技术标准,图纸上对零部件热处理要求的标注方法比较混乱,有的标注方法本身就不够合理,给工厂在组织热处理生产和进行质量检验时带来一定的困难。因 Ministry of Railways (85) Iron Tech word 1299 document approved, will be January 1, 1987 come into effect. For ease of implementation, some major issues are as follows: I. Necessity of Setting Standards Heat Treatment of Railway Locomotive Parts Over the years, there is no uniform technical standard for the production plants. The annotating methods for the heat treatment requirements of parts on the drawings are quite confusing. There are The labeling method itself is not reasonable enough, giving the plant some difficulty in the organization of heat treatment and quality control. because