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关注：1
2013-05-23 12:21
求翻译：中碳钢的碳当量在0.4%以上，淬硬倾向增大，焊接时一般要预热到150~250℃左右是什么意思？ 待解决
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中碳钢的碳当量在0.4%以上，淬硬倾向增大，焊接时一般要预热到150~250℃左右
问题补充： |
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2013-05-23 12:21:38
Carbon steel in carbon equivalent above 0.4%, the hardening tendency increases, welding generally preheated to about 150 ~ 250 ℃
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2013-05-23 12:23:18
The carbon steel carbon equivalent weight of the more than 0.4 % increase, and hardened tendency when welding in general, you want to warm up to 150 to about 250 °C
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2013-05-23 12:24:58
正在翻译，请等待...
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2013-05-23 12:26:38
Carbon equivalent over 0.4% of medium carbon steel, hardened tend to increase, when welding to preheat to about 150~250℃
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2013-05-23 12:28:18
正在翻译，请等待...
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