8620H齿轮锻件锻造余热正火工艺
Heat-remained Normalizing Technology of 8620H Gear Forging
刘红军, 刘晓静
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作者单位：(陕西法士特齿轮有限责任公司, 陕西 宝鸡 722409)
中文关键字：余热正火； 入炉温度； 组织； 硬度
英文关键字：heat-remained normalizing; temperature into furnace; microstructure; hardness
中文摘要：通过对8620H齿轮锻件进行余热正火试验和分析，得出：合理控制锻件终锻后进入等温炉的温度，可得到合格的硬度和组织。与传统正火工艺相比，余热正火有较大的优势。
英文摘要：The experiments and analysis of the heat-remained normalizing for 8620H gear forging were carried out. The results show that the eligible hardness and microstructure can be obtained by reasonably controlling the temperature into the isothermal furnace after forging. This technics has bigger superiority than the traditional normalizing treatment.