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金属学报  1978, Vol. 14 Issue (1): 66-72    
  论文 本期目录 | 过刊浏览 |
脉冲等离子焊接在锅炉管系制造中的应用
郑尚武
APPLICATION OF PULSED PLASMA ARC WELDING TO BOILER TUBING SYSTEM JOINTING
Zheng Shang-wu
引用本文:

郑尚武. 脉冲等离子焊接在锅炉管系制造中的应用[J]. 金属学报, 1978, 14(1): 66-72.
. APPLICATION OF PULSED PLASMA ARC WELDING TO BOILER TUBING SYSTEM JOINTING[J]. Acta Metall Sin, 1978, 14(1): 66-72.

全文: PDF(587 KB)  
摘要: 本文对脉冲等离子焊接锅炉管系的研究工作中一些主要结果进行了论述,如焊接参数对焊接熔池控制的影响,主要焊接参数的匹配及主控参数的选定,焊接缺陷与消除方法及其在生产使用中的情况。还讨论了取等离子弧穿透时产生的音响讯号作为工艺适应控制讯号的问题。
Abstract:A pulsed plasma-arc all-position welding technique has been successfully applied to the superheater and reheater tubing system jointing of power boilers on a large scale. The effect of processing conditions on welding puddle control and the coordination of the various main parameters from which the primary controlling parameter was chosen have been investigated. It was observed that gas pores caused either by incomplete penetration or by unstable molten puddle constituted the main weld defects, and certain remedy measures were found to be effective. The sound effect produced by the plasma jet impulse through key-hole has been considered useful in monitoring weld penetration and it may serve a signal for performance control of the above welding technique.
收稿日期: 1978-01-18     
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