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lun qing jie de re chu li ji shu ( er )
Author(s): 
Pages: 1-4
Year: Issue:  2
Journal: Heat Treatment Technology and Equipment

Keyword:  热处理技术真空热处理可控气氛渗层表面硬度搓丝板保护气氛一汽集团公司变速箱齿轮合格范围;
Abstract: <正> 4 可控气氛与真空热处理应用效果举例4.1 一汽集团公司热处理厂可控气氛连续渗碳、淬火、清洗、回火生产线 在掌握、消化、吸收美国HOLCROFT公司双排连续渗碳淬火生产线基础上,自制了多条达到同样水平的生产线,武装了整个汽车底盘热处理车间,满足了变速箱齿轮,后桥齿轮大批量生产的需要,使齿轮质量达到了德国高尔夫轿车标准。渗层均匀度± 0.15mm,渗层表面碳浓度波动±0.05%C,表面硬度均匀性±2HRC。通过调整工艺,采用热油淬火、压床淬火,使齿轮齿套的变形控制到合格范围。齿轮渗碳前施行燃
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