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随着焊接工艺在越来越多的行业中应用,人们对焊接工艺的要求也越来越严格,特别是在锅炉压力容器行业,人们对焊接工艺的重要性理解也明显增强。1《承压设备焊接工艺评定》的评定原则NB/T47014-2100《承压设备焊接工艺评定》规定,变更任何一个重要因素,都需重新进行焊接工艺评定;如果增加或变更了任何一个补加因素,则需要按增加或变更的补加因素增焊冲击韧性用的试件进行试验;当增加或变更次要因素时,重新编制预焊接工
With the application of welding technology in more and more industries, the requirements of the welding process have become more and more strict. Especially in the boiler and pressure vessel industry, the importance of the welding process is obviously enhanced. 1 “assessment of pressure welding equipment,” the evaluation principle NB / T47014-2100 “pressure equipment welding process assessment” provides that the change of any one important factor, the welding process must be re-assessed; if you add or change any one of the additional Factors, you need to increase or change the additional factors by adding the impact of the impact toughness of the specimen for testing; when adding or changing secondary factors, re-preparation of pre-welding