Titanium is extensively employed in chemical reaction vessels and heat exchangersdue to its exceptional corrosion resistance. However, its high cost remains a significant drawback, especially when used as a structural component. A practical solution to this issue is the adoption of titanium-steel composite plates, known as Titanium Clad Plates. These composite materials combine titanium’s corrosion resistance with the structural strength of ordinary steel, while significantly reducing costs.
Common techniques for producing stainless steel clad plates include:
· Filled metal steel ingot rolling
· Explosive cladding
· Rolling and crimping
· Overlay welding
For titanium, the industry typically favors explosive cladding or rolling and crimping, which can be further categorized into:
1. Thick plate rolling
2. Continuous hot rolling
The explosive cladding method is usually performed at room temperature, whereas rolling and crimping involves assembling and heating the plates before rolling.
Key steps:
· Two metal plates (titanium and steel) are placed with a controlled gap between them.
· Explosives are positioned on top, and detonation is initiated from one end.
· The explosion, traveling at several kilometers per second, causes the titanium plate to collide with the steel plate at an angle.
· The extreme deformation speed and ultra-high pressure cause both metal surfaces to behave like fluids, stripping away oxide films and gas layers, leaving clean metal surfaces.
· The bonding occurs instantly in a "cold welding" process.
The resulting titanium-steel clad plate can be further hot-rolled down to 4mm thickness, hence the name explosive cladding method.
· A titanium plate (cladding) and a steel plate (base) are assembled with embedded spacers.
· An intermediate insert is placed between them, and electron beam welding is performed under high vacuum.
· The assembly is heated in a furnace and then pressed in a thick plate rolling mill to the desired thickness, ensuring a strong bond.
· The edges are trimmed to separate the two plates.
· Similar to the thick plate rolling method, but arc welding is used in an open-air environment instead of electron beam welding.
· The plates are continuously rolled in a hot rolling mill to the required thickness, coiled, and then cut into separate plates.
If you need any help relate to Titanium or clad plates please contact
Yang Chen(Stac)
Email: stac@bjaoke.com