Titanium Clad Steel Plate

What is Titanium Clad Steel Plate?

A material known as titanium clad steel plate is produced by laminating a steel plate with a titanium plate. Although titanium clad is expensive and resistant to corrosion, composite plates can significantly reduce costs. Previously produced by explosive crimping, hot rolling has recently begun to be utilized.

titanium clad carbon steel plate, the titanium-iron solid solution phase, and intermetallic compounds (TiFe, TiFe2, etc.) are prone to forming on the joint surface of steel and titanium at high temperatures. causing the steel plate to become brittle. To forestall embrittlement can be utilized under 50ppm carbon content of ultra low carbon steel foil or treated steel wire network as a sandwich material among titanium and steel. To get the best jointing performance, the rolling temperature is set around 850°C.

Titanium is largely used as a large number of chemical reactors and thermal exchangers for its excellent corrosion resistance, but the disadvantage is that the cost is high. In particular, this problem is particularly prominent as a structural component. The effective solution is to use titanium-clad steel plate instead. The composite material of titanium and ordinary steel is called titanium steel composite plate, which has both titanium resistance and ordinary steel plates as the strength of the structure. It is important that the cost is also greatly reduced.

The titanium clad steel plate is produced by explosive composite/explosion + hot rolling, which has both excellent performance and low cost. It is an excellent anti-corrosion material with good corrosion resistance, high strength, high modulus of elasticity and good plastic toughness. It is widely used in steel chimneys of the power plant.

Process

1) When the plasticity of the titanium clad steel plate is poor, it is necessary to re-anneal, eliminate stress, improve its performance, and prevent defects in subsequent production.
2) When the winding plate of the reel, the stamping head and the like need to be bent, when the temperature is low, the flame is preheated to the bending portion, and the prevents bubbling or cracking.
3) When the hole is cut and the hole of the drill pipe is operated, the blanking and drilling operations should be processed from the titanium layer to the steel layer as much as possible to prevent the titanium steel composite plate from being torn or cracked.
4) The argon gas with a purity of not less than 99.99% should be used as the shielding gas for the welded titanium layer. In addition, the welding wire does not allow cracks and interlayers.
5) Carefully clean and treat the workpiece weld area before welding. The ambient temperature is below 5℃ and the flame is used to preheat the base steel surface.
6) For titanium steel composite plate equipment, the titanium weld seam processing technology is strip processing, that is, the titanium layer is removed within 15mm of the edge of the composite plate, the titanium steel composite plate is first welded with the steel weld, and then the steel is welded with 50mm wide titanium strip. The weld is completely covered and the titanium layer is welded while argon gas is protected.

7) For the non-adhesive found in the production and inspection process, if the area is large, the material must be replaced. If the area is small, the remedial can be used. The rivet is reinforced with the unbonded area, and the rivet is less suitable.

8) The micro-cracks on the surface of the titanium clad steel plate must be cleaned and then repaired. For small cracks, direct repair welding can be used.

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