从硬度原因来分析全纤维台车淬火炉

从硬度原因来分析全纤维台车淬火炉
 

硬度不足:经分析认为,全纤维台车淬火炉使用了很久,虽然补充了一定数量,但其冷却能力已大大下降;另外台车炉淬火所用天车非淬火天车,运行速度较慢,从出炉到入油时间过长工件在入油前未能保持足够的淬火温度;两工件把合在一起,淬火截面积过大,冷却速度不够致使马氏体转变不充分,仍有较多的残余奥氏体等组织存在;工件装在料盘上,料盘的重量较大,冷却过程中要散发大量的热量,也影响工件冷却速度。
 

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