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How is titanium clad plate made?

Nov. 22, 2021

The titanium-clad steel plate is a typical metallic laminar composites. It is also known as titanium cladding or titanium-steel bimetallics. Usually, they are produced by deformation bonding: either hot/cold-roll bonding or explosive bonding. The titanium clad steel plate obtains the low cost and high strength of steel with the outstanding corrosion resistance of titanium.

 

What is titanium cladding?

The application of a thin coating of metallic titanium to a material, usually steel, in order to improve corrosion resistance. Titanium cladding may

be affected by the condensation of titanium vapors on the surface of an item, in which case titanium is melted and superheated using an electron beam in a deep vacuum. 


Titanium Clad Steel Plate 1

 

How is titanium clad plate made?

1. Thick plate rolling method: The thick plate rolling method initially assembles titanium plate (composite material) and steel plate (base material) with embedded slabs. At this time, a suitable intermediate insert material is placed between the titanium plate and the steel, and then electron beam welding is used under high vacuum. Finally, after being heated in a heating furnace, it is forced to be rolled to the required thickness on a thick plate rolling mill, so that the titanium plate and the steel plate are really joined. Finally, the periphery is cut and separated into 2 plates.

2. Explosive welding method: First, place the two metal plates to be crimped at a certain interval, and then put an appropriate amount of explosive on them. It is detonated from one end of the explosive at a speed of several thousand meters per second. With this explosive energy, the titanium plate collides from the angle of the base steel plate. At the collision point, the substrate steel plate and the titanium plate show fluid behavior due to the extremely high deformation speed and ultra-high pressure. The oxide film and gas adsorption layer on the two metal surfaces are eliminated as metal jets, and the clean surface between the surface The bonding is completed in an instant, which is called cold bonding. The titanium clad steel plate manufactured by this method can be continuously hot-rolled to a thickness of 4mm, so it is also called the explosive clad method.

3. Continuous hot rolling method: The continuous hot rolling method is basically the same as the thick plate rolling method. The difference is that the steel plate is added between the two plates, and the arc welding is carried out in the atmosphere. Finally, the continuous hot rolling mill is continuously rolled to the point. The required thickness is taken out in the form of a coil. Finally, the periphery is cut and separated into 2 plates.

The titanium steel clad plate manufactured by the explosive method and the thick plate rolling method is a thick plate, and its use is mainly used as a corrosion-resistant structural material.

 

How is titanium clad plate made?cid=96


Applications

The titanium clad steel plates are widely used in many applications and services. These include petrochemical & chemical industry especially chloral alkali process, food industry, fertilizer industry, wet metallurgy, electroplating, vacuum salt production, marine engineering, chimney industry, pressure vessels, heat exchangers, desalination industry, and power plant, etc.

 

Standard & Specification

The titanium-clad steel plate shall be manufactured to ASTM B898. The base metal may be a variety of carbon steel plates manufactured to ASTM A516, ASTM A515, ASTM A266, ASTM A572, ASTM A709, ASTM A387, ASTM A240, etc. The cladding metal may be ASTM B265 titanium Gr.1, Gr.2, Gr.3, Gr.7, Gr.9, Gr.12, and Gr.16, etc. The cladding techniques can be either hot rolling, cold rolling, explosive bonding, or a combination of them. Size specification: thickness(0.5 mm~16 mm), width x length range(2m x 6m).


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