Seek help: structure and manufacturing of titanium composite plate containers with steel fittings lined with titanium
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Recently, we need to manufacture containers made of titanium-steel composite plates; the cylinder body is made of such composite plates, while the cylinder connections are made of carbon steel, with titanium tubes lining these connections. How should the junctions between the connections and the cylinder body be lined with titanium? What structure would be suitable, and how can it be fabricated? I hope the experts here will kindly share their insights.
Additionally, what method should be used to remove the titanium coating at the junction between the titanium-steel composite plate cylinder and the connections? Should it be done by grinding or through machining? The cylinder has a diameter of 2000 and a thickness of 14+3, making it difficult to machine using conventional equipment
What is a good method for cutting titanium-steel composite sheets?
I worked on equipment using titanium composite plates a long time ago. Titanium and steel cannot be welded directly; during design, the base layer is welded manually, while the composite layer is joined by using titanium set screws to connect the titanium plate to the steel plate, after which the composite layer is welded using TIG welding. It’s easy to say, but difficult to draw.
This post was last edited by wanlirn on 2021-5-8 at 13:49. Cut slices on the angle grinder; there’s no need to cut through completely. After that, use a flat chisel to shave them off for a neat finish. Not only at the joints, but at all welds where connections are made, the titanium layer must be removed by 15~20
Plate cutting machines – laser cutting and plasma cutting work as well, but cold cutting is the best option; it doesn’t cost much more, and water cutting can be used as well
How is the titanium lining of the nozzle formed? The connection between the nozzle and the cylinder is of the saddle type. Is it feasible to use a fully formed nozzle lining at the flanged area, or should a welded structure be used instead?
How is the titanium lining of the nozzle formed? The connection between the nozzle and the cylinder is of the saddle type, with flanges; is it feasible to have a nozzle lining that is formed as a single unit at those flange areas?
Whether it is flanging or other types of connections, countersunk titanium screws are used to secure them to the base layer, and then the titanium screws are sealed using TIG welding. For the fixed-type fitting, the base of the pipe must be cut properly to expose the composite layer, which is then inserted into the cylinder. For the latter part, you can weld it however you want; welding titanium to titanium is straightforward. It is the base layer that is involved in the strength calculation; the composite layer only contributes to corrosion resistance.