Preparation method of titanium-steel single-sided composite board

Abstract

The invention discloses a preparation method of a titanium-steel single-sided composite board, comprising the following processing steps of: (1) respectively selecting two titanium plates with same size and two steel plates with same size and carrying out rust and oxide layer removal treatment on the surfaces of the plates; (2) assembling to form multiple layers of symmetrical combined blank sequentially including a steel plate, a transition layer, a titanium plate, a parting agent, a titanium plate, a transition layer and a steel plate, wherein a gap exists between the periphery of the titanium plate and a barrier strip in the combined blank; (3) compressing the combined blank and respectively welding the barrier strip with a first steel plate and a second steel plate to form a closed cavity among the first steel plate, the second steel plate and the barrier strip, drilling holes in the barrier strip and welding a steel tube in the holes, and communicating the steel tube and the closed cavity; (4) conveying the combined blank into a heating furnace to heat and vacuumizing; (5) sealing the outer end of the steel tube and then conveying the combined blank into a rolling mill; and (6) cutting the combined blank after rolling to obtain the titanium-steel single-sided composite board. The preparation method disclosed by the invention is rational in technical design and low in production cost.

Description

technical field [0001] The invention relates to a preparation method of a composite steel plate, in particular to a preparation method of a titanium-steel single-sided composite plate. Background technique [0002] Titanium-steel clad plates are widely used in energy, petroleum, chemical, marine and other sectors due to their excellent corrosion resistance and remarkable economy. There are two main methods of producing titanium-steel clad plates: one is the explosive clad method, and the other is the rolling clad method. The products produced by the explosive cladding method have small boards, low production efficiency, low bonding strength, and a staggered bonding cross-section, which reduces the effective thickness of the titanium layer. The rolling compounding method is further divided into cold rolling compounding method and hot rolling compounding method. The hot rolling compounding method can be produced on a large scale, and the interface bonding rate and interface b...

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Problems solved by technology

Patent CN101992344 discloses a preparation method of titanium-steel composite plate, which is carried out according to the following process steps, first select a titanium plate and a steel plate with equal length and width to remove rust and oxide layers; then put the titanium plate against the surface of the steel plate , completely overlapped to form a combined blank; then use four titanium plates as side sealing plates to seal the surrounding of the combined blank, and use a clamp to clamp the side sealing plate and the combined blank and put them into the vacuum chamber together; put the combined blank and the side sealing plate After all the contact seams are welded tightly, they are jointly sent into the heating furnace to be heated to 600~1200℃, and kept for 0.1~2h; finally, the heated combined billet is sent to the rolling mill for rolling to obtain titanium with interface bonding strength >350MPa. -Steel clad plate, in this method, the billet needs to be put into the vacuum chamber and then welded after vacuuming, the vacuum welding condition is harsh, the welding cost is high, and the process design is not reasonable enough; moreover, in this method, the material requirements for the steel plate are high, requiring Use stainless steel (such as 304 austenitic stainless steel), high cost

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