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A kind of preparation method of titanium-aluminum-stainless steel composite plate

A stainless steel plate and stainless steel technology, applied in the field of preparation of titanium-aluminum-stainless steel clad plate, can solve the problems of performance degradation and coarse structure, prevent diffusion, improve shear strength and tensile strength, and prevent iron-titanium intermetallic The effect of compound formation

Active Publication Date: 2017-09-22
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the shortcomings of titanium and stainless steel substrate structure coarseness and performance degradation caused by excessively high heating temperature in the preparation process of the titanium-stainless steel composite plate. Aluminum foil is used as the intermediate layer to achieve the formation of a metallurgically bonded titanium-aluminum-stainless steel composite plate, and It can significantly reduce the heating temperature and improve the performance of the composite board

Method used

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  • A kind of preparation method of titanium-aluminum-stainless steel composite plate
  • A kind of preparation method of titanium-aluminum-stainless steel composite plate
  • A kind of preparation method of titanium-aluminum-stainless steel composite plate

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Embodiment 1

[0023] The preparation method of the titanium-aluminum-stainless steel composite plate in this embodiment specifically includes the following steps:

[0024] (1) Take 1mm thick TA1 titanium plate, 0.4mm thick pure aluminum foil and 8mm thick 304 stainless steel as raw materials, respectively cut into a size of 50mm×50mm; sand the surface of the cut titanium and stainless steel plates to remove surface oxidation Skin, etc., the aluminum plate is activated by acid washing on the surface, and after cleaning, it is combined in the order of titanium-aluminum-stainless steel;

[0025] (2) Place the combined composite material in a vacuum hot pressing device, pre-pressurize it to 4Mpa, after vacuuming, heat to 550°C at a heating rate of 15°C / min, then pressurize to a pressure of 4Mpa, and keep warm 2 hours; then, the furnace is cooled to 450°C, the temperature control accuracy is controlled at ±8°C, and the temperature is kept for 1 hour. Then, cut off the power supply and cool to room te...

Embodiment 2

[0028] (1) Take 2mm thick TA1 titanium plate, 0.05mm thick pure aluminum foil and 2mm thick 316 stainless steel as raw materials, respectively cut into a size of 50mm×50mm; the surface of titanium and stainless steel plates are treated with sandblasting to remove surface oxide scale, etc. The aluminum plate is activated and cleaned by surface pickling; then, it is combined in the order of titanium-aluminum-stainless steel;

[0029] (2) Place the combined composite material in a vacuum hot pressing device, pre-pressurize it to 0.5Mpa, after vacuuming, heat to 650°C at a heating rate of 5°C / min, and then pressurize to a pressure of 1Mpa. Hold for 0.5 hours; then, cool to 450°C with the furnace, control the temperature accuracy at ±8°C, hold for 0.5 hours, and then cool to room temperature; open the furnace body to obtain a metallurgical bonded titanium-aluminum-stainless steel composite plate.

[0030] Figure 4 The cross-sectional morphology near the interface of the composite plate...

Embodiment 3

[0032] (1) Using 1mm thick TC4 titanium plate, 0.1mm thick pure aluminum foil and 8mm thick 316 stainless steel as raw materials, they were cut to a size of 50mm×50mm; the titanium surface was polished with sandpaper, and the stainless steel plate surface was removed by sandblasting. Oxide scale, etc., the aluminum plate is activated and cleaned by acid washing on the surface; then, it is combined in the order of titanium-aluminum-stainless steel and superimposed on 3 layers;

[0033] (2) Place the combined composite material in a vacuum hot-pressing device, pre-pressurize to 1Mpa, after vacuuming, heat to 600°C at a heating rate of 10°C / min, and then pressurize to a pressure of 2.5Mpa, Heat preservation for 2 hours; then, cool to 450°C with the furnace, control the temperature accuracy at ±8°C, hold for 0.8 hours, and then cool to room temperature; open the furnace body to obtain a metallurgical bonded titanium-aluminum-stainless steel composite plate. Figure 7 In this embodime...

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Abstract

The invention discloses a preparing method for a titanium-aluminum-stainless-steel composite plate and belongs to field of composite material preparation. The method comprises the steps that a titanium plate, an aluminum plate / foil and a stainless steel plate are assembled, a titanium-aluminum-stainless-steel interlayer structure is formed and put into vacuum hot press equipment to be treated for 0.5-2 hours at the pressure of 1-4 MPa at 550-650 DEG C, and then cooling treatment is conduced to obtain the titanium-aluminum-stainless-steel composite plate. The preparing method is simple in operation and convenient to implement, a titanium / aluminum interface and an aluminum / stainless steel interface form metallurgical bonding through even dispersing, and the titanium-aluminum-stainless-steel composite plate is obtained.

Description

Technical field [0001] The invention relates to a method for preparing a titanium-aluminum-stainless steel composite plate, which belongs to the field of composite material preparation. Background technique [0002] In recent years, with the improvement of science and technology, the requirements for materials have become higher and higher. For example, in the aerospace industry, shipbuilding, and nuclear energy industries, materials are required to have good corrosion resistance, mechanical properties, high temperature resistance, and low temperature. Resistance also requires the material itself to have a higher cost performance to meet the needs of industrial production. Therefore, composite board materials came into being. Titanium and its alloys have the advantages of good corrosion resistance, good heat resistance, and excellent low-temperature performance. Stainless steel has an excellent cost performance. Using titanium and its alloys as surface materials can prevent cor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B37/02B32B37/06B32B37/10B32B15/01B32B15/18B32B15/20
CPCB32B15/01B32B15/18B32B15/20B32B37/02B32B37/06B32B37/10B32B2250/03
Inventor 詹肇麟付天琳刘忠李莉刘建雄
Owner KUNMING UNIV OF SCI & TECH
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