论文部分内容阅读
水雾化粉末高速钢(GF_3)刀具中间试验鉴定会于1982年11月中旬在京召开,参加会议的有来自全国44个单位的78名代表。与会代表听取了北京工具研究所提出的“水雾化粉末高速钢(GF_2)刀具中间试验”总结报告,及六个单位关于刀具使用情况和切削试验报告,审查了工艺文件,检测了粉末及刀具样品,然后进行了讨论评议。与会代表认为: 1.在国内首先研制成功先进的水雾化制粉——热挤压致密化工艺,已完成中间试验,具有小批生产规模。 2.水雾化原始粉末氧含量1500～2000PPM,经真空脱氧后氧含量小于600PPM,上述指标达到目前国际水平。粉末粒度150目占50％。 3.水雾化GF_3粉末高速钢碳化物颗粒细小,分布均匀,热处理工艺性能好,机械性能和可磨性
Water-atomized powder high-speed steel (GF_3) tool intermediate test appraisal will be held in mid-November 1982 in Beijing, attended by a total of 44 representatives from the country’s 78 representatives. Participants listened to the summary report of “Intermediate Test of Water-atomized Powder High-speed Steel (GF_2) Tool” proposed by Beijing Tool Research Institute and reports on the use of cutting tools and cutting tests by six units, reviewing the process documents, testing of powders and tools The sample was then discussed and commented. Participants said: 1. In China, the first successful development of water atomized milling - hot extrusion densification process, has completed the intermediate test, with small-scale production scale. 2. Water atomization The original powder oxygen content of 1500 ~ 2000PPM, the oxygen content after vacuum deoxidation is less than 600PPM, the above indicators reached the current international level. Powder size of 150 heads accounted for 50%. 3. Water atomization GF3 powder high-speed steel carbide particles are small, uniform distribution, heat treatment process performance, mechanical properties and grindability