The tube sheet of the fixed-tube-sheet heat exchanger is a nickel-carbon steel composite tube sheet, while the shell is made of carbon steel. Does welding the shell to the tube sheet have an impact on the composite layer?
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The tube sheet of the fixed-tube-sheet heat exchanger is a nickel-carbon steel composite tube sheet, while the shell is made of carbon steel. Does welding the shell to the tube sheet have an impact on the composite layer?
Welding the cylinder to the tube sheet can affect the composite layer, as the high temperatures generated by welding can cause changes in the material of the composite layer in the heat-affected zone, such as reduced hardness and structural deformation. Appropriate welding techniques and post-treatment methods need to be employed to reduce this effect. .
The composite tube sheet can’t be too thin; it doesn’t have much of an impact
The fixed composite tube sheet is welded to the shell, with no impact.