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METHOD FOR CONNECTING TUBES OF A TUBE BUNDLE HEAT EXCHANGER TO A TUBE PLATE OF THE TUBE BUNDLE HEAT EXCHANGER
METHOD FOR CONNECTING TUBES OF A TUBE BUNDLE HEAT EXCHANGER TO A TUBE PLATE OF THE TUBE BUNDLE HEAT EXCHANGER
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机译:将管束换热器的管连接到管束换热器的管板的方法
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摘要
The present invention relates to a method for connecting tubes (125) of a tube bundle heat exchanger to a tube plate (130) of the tube bundle heat exchanger, wherein the tubes (125) are cohesively connected to the tube plate (130) by laser welding, during the course of which a laser beam (211) is generated and is focused on a location to be welded in a connecting region (250) between tube (125) and tube plate (130), wherein the laser beam (211) is moved so as to perform a first movement over the connecting region (250) and a second movement which is superposed on the first movement and which differs from the first movement, and wherein, by means of the second movement, melt bath dynamics are influenced in targeted fashion and/or a vapour capillary that forms is modified in targeted fashion.
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