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We have a high-pressure reactor here with a wall thickness of 15 centimeters and a weight of over 60 tons; I’m very curious about how such a thing is made
High-pressure vessels are generally classified into forged-welded types and multi-layer wrapped types based on the pressure; for lower pressures, single-layer thick plate roll welding can also be used. The DN2800 ammonia synthesis tower produced by our company features a multi-layer wrapping structure with a total weight of 300 tons
15 centimeters is 150 mm. Hehe, it’s still possible to carry out roll welding. It is said that modern rolling mills can achieve a rolling diameter of up to 200 mm. If it’s hot-rolled, it can be made thicker still
Reply to 3# SuperFree2316: I’m very curious – how is that interface welded?
Reply to 4# Ding Xueli: The weld is built up layer by layer from the inside out.
Reply to 4# Ding Xueli: Make the groove and weld it bit by bit~
With this thickness, the equipment is very important. Many customers refuse multiple layers of wrapping and heat shrinking. Cold rolling can cause significant damage to the coiling machine; if not done properly, the machine may get damaged halfway through the process. Heat rolling requires considerable expertise, and when the diameter of the material to be rolled isn’t very large, a significant amount of thinning is necessary. Those with a bit more money prefer forgings, and for welding, narrow-gap welding is used
It can be rolled even though it’s this thick; that’s amazing