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热处理时,有时会迂到同一炉处理的另件,有的机械性能(如硬度)合格,有的则不合格的问题,这常常与没有搞好炉子温场测试有关。
Heat treatment, sometimes to the same furnace to deal with the other pieces, and some mechanical properties (such as hardness) qualified, and some are not qualified issue, which often do not do a good job in the furnace temperature field test.