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  • 匿名
关注:1 2013-05-23 12:21

求翻译:4. due to molten salt heating surface of boiler tubes for CR-MO steel, notch sensitivity, must take the preheating before welding, thermal insulation, heat treatment after welding to prevent weld cracking, lower levels of residual stresses in welded joints. From strictly linear in the welded joint of surface defects, a是什么意思?

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4. due to molten salt heating surface of boiler tubes for CR-MO steel, notch sensitivity, must take the preheating before welding, thermal insulation, heat treatment after welding to prevent weld cracking, lower levels of residual stresses in welded joints. From strictly linear in the welded joint of surface defects, a
问题补充:

  • 匿名
2013-05-23 12:21:38
4。由于熔盐的缺口敏感性,铬钼钢,锅炉管受热面必须采取焊接,保温,热处理前预热,焊后,以防止焊缝开裂,焊接接头的残余应力水平较低。从严格的线性焊接接头的表面缺陷,和100%射线,合格水平不低于级ⅱ。
  • 匿名
2013-05-23 12:23:18
  • 匿名
2013-05-23 12:24:58
  • 匿名
2013-05-23 12:26:38
  • 匿名
2013-05-23 12:28:18
 
 
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