Preparation method of titanium-steel composite plate

A technology for composite plates and titanium steel, applied in the field of material processing, can solve problems such as unfavorable large-scale production of composite plates, affecting the performance of composite materials, and difficulty in operation, so as to reduce the formation of brittle intermetallic compounds and realize mass production. , optimize the effect of composite performance

Active Publication Date: 2018-01-26
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because titanium is very active at high temperature, TiC and TiFe metal compounds are easily formed on the interface during the composite process. The existence of these interfacial metal compounds will have a great impact on the bonding performance and interfacial compatibility during deformation, thus affecting the composite. Material performance
Explosive cladding method can meet the bonding strength of titanium-steel clad plate, but there are deficiencies such as relatively low yield, environmental pollution, noise and safety.
[0003] Hot-rolled cladding has high requirements on the cleanliness of the interface joint, the performance of the transition layer, the strength and integrity of the weld, the heating temperature, the holding time, and the first pass reduction, so this method is difficult to operate and is not conducive to Large-scale production of composite panels

Method used

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  • Preparation method of titanium-steel composite plate

Examples

Experimental program
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Effect test

preparation example Construction

[0023] A method for preparing a titanium-steel composite plate, specifically comprising the following steps:

[0024] (1) Preparation of composite billet: surface treatment of steel plate and titanium plate billet, removal of oxide layer and stains, and grinding of burrs on each surface of the billet to ensure smoothness.

[0025] (2) Coating the coating layer and billet assembly of the composite billet: select the contact surface of the titanium steel composite billet, coat the high temperature resistant anti-carburization and nitriding isolation coating on the contacted titanium surface, and dry it at room temperature ; After the drying treatment is completed, two pairs of titanium billets are stacked upright, and steel billets are placed in the middle to complete the billet assembly to obtain a composite billet.

[0026] (3) Welding and sealing treatment of slabs: Weld and seal around the composite surface of the composite slab, and leave a certain size of unwelded area at ...

Embodiment approach 1

[0031] Steel plate: Q235 is selected, the thickness is 25mm, the length is 50mm, and the width is 25mm.

[0032] Titanium plate: TA1 is selected, the thickness is 3mm, the length is 50mm, and the width is 25mm.

[0033] The heating and heat preservation treatment conditions are as follows: first heat to 500°C, hold for 60 minutes, then heat to 850°C, hold for 25 minutes;

[0034] The rolling treatment conditions of the composite plate are as follows: the first pass reduction is 32%, the last pass reduction is 1.9%, the reductions are 10mm, 4mm, 2mm, 0.6mm, and the total reduction is 60%. The rolling speed is 0.5 mm / s.

[0035] The test performance of the titanium-steel composite plate prepared in this example is as follows: according to the GB / T6396-2008 standard, the mechanical performance experiment was carried out, and the measured shear strength was 176MPa, the tensile strength was 559MPa, and the elongation was 39.6%; The titanium-steel composite material stipulated in ...

Embodiment approach 2

[0037] Steel plate: Q235 is selected, the thickness is 25mm, the length is 50mm, and the width is 25mm.

[0038] Titanium plate: TA1 is selected, the thickness is 3mm, the length is 50mm, and the width is 25mm.

[0039] The heating and heat preservation treatment conditions are as follows: first heat to 600°C, hold for 60 minutes, then heat to 830°C, hold for 50 minutes;

[0040] The rolling treatment conditions of the composite plate are as follows: the first pass reduction is 32%, the last pass reduction is 1.9%, the reductions are 10mm, 4mm, 2mm, 0.6mm, and the total reduction is 60%. The rolling speed is 0.1 mm / s.

[0041] The test performance of the titanium-steel composite plate prepared in this example is as follows: according to the requirements of the GB / T6396-2008 standard, the mechanical performance experiment was carried out, and the measured shear strength was 182MPa, the tensile strength was 562MPa, and the elongation was 41%; The titanium-steel composite mater...

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Abstract

The invention discloses a preparation method of a titanium-steel composite plate, and belongs to the field of material processing. The preparation method of the titanium-steel composite plate comprises the steps that the surfaces of adopted titanium blanks and the surface of an adopted steel blank are treated, and then the surfaces of the titanium blanks are coated with paint and dried at the roomtemperature; the two titanium blanks with the surfaces being treated and coated with paint are aligned and stacked together, the steel blank is placed between the two titanium blanks, and then the blanks are assembled together symmetrically; the periphery of a composite blank is welded and sealed, and vacuumizing treatment is conducted; and the composite blank is placed in a heating furnace so asto be subject to heat treatment, then multi-pass rolling is conducted, the composite blank is air cooled after being rolled, and edge cutting, tension-straightening and flattening are conducted. According to the preparation method of the titanium-steel composite plate, the surfaces of the titanium blanks are coated with protective coatings, so that the titanium blanks are protected, the situationthat the composite performance is affected due to the fact that titanium with active chemical properties is oxidized and forms compounds with other elements is avoided, and the coatings are preparedfrom isolation paint which can prevent oxidization of titanium and prevent diffusion of harmful elements (such as C and N) at high temperatures.

Description

technical field [0001] The invention relates to a preparation method of a titanium-steel composite plate, which belongs to the field of material processing. Background technique [0002] Titanium-steel composite panels make full use of cladding titanium to obtain excellent corrosion resistance, use steel to obtain sufficient strength, save the use of rare and precious metals, and at the same time achieve the goals of reducing costs, saving resources, saving energy and reducing emissions. The methods for producing titanium-steel clad plates can be divided into four types: explosive cladding, diffusion cladding, explosion-rolling and rolling cladding. Because titanium is very active at high temperature, TiC and TiFe metal compounds are easily formed on the interface during the composite process. The existence of these interfacial metal compounds will have a great impact on the bonding performance and interfacial compatibility during deformation, thus affecting the composite. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/02
Inventor 姜庆伟李小红刘子峰蒋业华
Owner KUNMING UNIV OF SCI & TECH
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