How to reduce deformation during the welding of tube sheets and heat exchange tubes
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How to reduce deformation during the welding of tube sheets and heat exchange tubes
Multiple people perform simultaneous welding in a dispersed manner； During welding, measures such as fixtures are used to prevent deformation.
The deformation of the sealing surface is difficult to control; the mating flanges can first be fastened using bolts and tube sheet flanges, with insulating gaskets placed between them as much as possible. In this way, the sealing surface is constrained by the cold flange on one side, and it will not deform after cooling following welding. This method is often used when cladding tube sheets; without it, the tube sheet suffers significant deformation after cladding. Or, if it’s considered too troublesome, the sealing surface can be finely processed a second time