高温回火是指把零件淬火后，再加热到500~650℃，一般是加热到临界点的某一温度，保温一段时间后，以适当的速度冷却。
... 回火有低温回火及高温回火:Low&High Temperature Tempering 高温回火:High Temperature Tempering 退火:Annealing ...
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... 高温环境 hot environment; 高温回火 high tempering; 高温回火钢 high-temper steel; ...
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... flame case hardening 火焰加热表面淬火 ; 高温回火 flame cottom hardening 火焰加热外貌淬火 flame hardening 火焰硬化 ...
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... hellogh temperature strength高温强度 hellogh temperature tempering高温回火 hellogh tensile aluminium alloy高强度铝合金 ...
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By forging,primary normalizing and high temperature tempering,the reduction of area of a 45 steel magnetic yoke for electric machine was lower. Metallography observation indicates that slight banded structure exists in the steel magnetic yoke body.
某45钢电机磁轭锻造+一次正火+高温回火后断面收缩率偏低,金相观察发现在磁轭本体有轻微带状组织,返修件经二次正火+高温回火,消除了带状组织,断面收缩率达到了技术要求。
参考来源 - 45钢电机磁轭带状组织的消除与预防·2,447,543篇论文数据，部分数据来源于NoteExpress
空冷后高温回火产生回火脆性。
However, a temper brittleness has appeared after high temper.
经过对材料的分析试验，发现其具有高温回火脆性。
By analytical testing the material discovered that it has high temperature temper embrittlement.
另外研究发现高温回火并不是引起零件表面脱碳的主要原因。
And the higher temperature tempering is not the main reason for the decarburization.
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