In chemical engineering and pressure vessels, Shaped bimetal bimetallic tube sheet is more reasonable than planar bimetal Tube sheet in terms of structure and technology, so it is used more and more widely.
adopts full-scale explosive welding technology, which not only welds the flat part of the bottom of the tube sheet, but also welds the fillet and straight edge positions. The fully composite tubesheet naturally is superior to the locally composite tubesheet. Because the cladding is integrated, the effect is better than that of local composite and bushing.
Chinalco adopts the following explosive processing technology for all-round composite tube sheets of dish, basin and hemisphere shape:
1. explosive forming + explosive welding
2. explosive forming explosive welding
3. explosive welding + explosive forming
4. explosive welding - explosive forming
