Manufacturing method of titanium-steel-titanium two-sided composite plate

Abstract

The invention discloses a manufacturing method of a titanium-steel-titanium two-sided composite plate. The manufacturing method comprises the following processing steps: (1) four titanium plates with the same dimension and three steel plates with the same dimension are selected respectively, and rust and oxide layer removal processing is performed on the surfaces of the titanium plates and the steel plates; (2) a multilayer combination blank with three layers of steel plates, four layers of titanium plates and four layers of transition layers is formed through assembly, and gaps are arranged between the peripheries of the titanium plates and barrier strips in the combination blank; (3) the combination blank is pressed tightly and enables the barrier strips to be welded to a first steel plate and a third steel plate so as to enable the first steel plate, the second steel plate and the inner portions of the barrier strips to form a closed cavity, holes are drilled on the barrier strips, steel tubes are welded in the holes, and the steel tubes are communicated with the closed cavity; (4) the combination blank is sent to a heating furnace to be heated and vacuumized; (5) the combination blank is sent to a rolling mill to be rolled after the outer ends of the steel tubes are sealed; and (6) one titanium-steel-titanium two-sided composite plate and two titanium-steel single-sided composite plates are obtained by slitting the combination blank after the combination blank is rolled. The manufacturing method of the titanium-steel-titanium two-sided composite plate is reasonable in 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-titanium double-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 in...

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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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