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Study on full automatic arc welding machine for spherical tank

China welding 2002年第1期11卷 34-37页

作者：蒋力培张甲英俞建荣 Inst. of Petro-Chem. Technol. Beijing 102600 China

A full automatic welding machine for spherical tanks' all position multi layer welds has been developed. This machine is mainly composed of a two dimension seam tracking system based on microcomputer's memory and a welding tractor as well as rail. The main features of the machine are: while welding the first layer of a seam, its microcomputer system can analyze and store the tracing information from a two dimension sensor, and control the welding head device to realize two dimension real time tracing; while welding the second layer up to the top layer of the seam, it can realize two dimension tracing based on the memorial data, automatically determine the layer number and continually sway the welding head. The welding test shows that the machine has good tracing and welding behavior, and is suitable for spherical tank's all position multi layer welds.

关键词： full automatic welding machine spherical tank memorial tracing all position welding

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维普期刊数据库

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Research on laser-arc hybrid welding technology for long-distance pipeline construction

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China welding 2018年第3期27卷 53-58页

作者：曾惠林许远斌王长江何金昆 China Petroleum Pipeline Research Institute Co. Ltd. Langfang 065000 China East-south Asia Company of China Petroleum Pipeline Engineering Co. Ltd. Langfang 065000 China

In recent years, the research on pipeline laser-arc hybrid welding technology has been the important and difficult in the field of welding all over the world. China Petroleum Pipeline Research Institute Co. Ltd. has firstly developed pipeline laser-arc hybrid welding system in China, and executed the welding tests based on X70/X80 steel. Preliminary experiment results showed that hybrid welding could meet the requirements of related standards such as API1104,ASME,etc., the mechanical properties of girth seam are qualified in the case that there were no internal defects. With the development of high-power fiber laser and the continuous improvement of welding equipment, laser-arc hybrid welding technology for pipeline field welding will be available soon.

关键词： Pipeline all position welding laser-arc hybrid welding

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