The features of manual downhill welding,semiautomatic welding,automatic welding and other welding technologies like butt flash welding and laser beam welding (LEW) and so on are analyzed.

 
  • 分析了手工下向焊、半自動(dòng)焊、自動(dòng)焊及特種焊等焊接方法的特點(diǎn),在選擇焊接方法時(shí)應考慮管道直徑、壁厚、管道長(cháng)度、設計條件、管子級別等因素。
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