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Preparing method for titanium-aluminum-stainless-steel composite plate

A stainless steel plate and stainless steel technology is applied in the field of preparation of titanium-aluminum-stainless steel clad plate, which can solve the problems of coarse structure and performance degradation, and achieve the effect of preventing diffusion, improving shear strength and tensile strength, and good diffusion.

Active Publication Date: 2015-12-23
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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  • Preparing method for titanium-aluminum-stainless-steel composite plate
  • Preparing method for titanium-aluminum-stainless-steel composite plate
  • Preparing method for titanium-aluminum-stainless-steel composite plate

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Embodiment 1

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

[0024] (1) Using 1mm thick TA1 titanium plate, 0.4mm thick pure aluminum foil and 8mm thick 304 stainless steel as raw materials, cut them into a size of 50mm×50mm respectively; sand the surface of the cut titanium and stainless steel plate with sandpaper to remove surface oxidation Leather, etc., the aluminum plate is activated by surface pickling, 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 to 4Mpa, and heat it to 550°C at a heating rate of 15°C / min after vacuuming, then pressurize to 4Mpa and keep warm 2 hours; then, cool down to 450°C with the furnace, the temperature control accuracy is controlled at ±8°C, keep warm for 1 hour, then cut off the power supply, and cool to room ...

Embodiment 2

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

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

[0030] Figure 4 It is the cross-sectional morphology near the int...

Embodiment 3

[0032] (1) Use 1mm thick TC4 titanium plate, 0.1mm thick pure aluminum foil and 8mm thick 316 stainless steel as raw materials, and cut them into a size of 50mm×50mm; the surface of titanium is polished with sandpaper, and the surface of stainless steel plate is removed by sandblasting. Oxide skin, etc., the aluminum plate is activated and cleaned by surface pickling; then, it is assembled in the order of titanium-aluminum-stainless steel, and superimposed 3 layers;

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

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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 preparation method of 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 industry, materials are required to have good corrosion resistance, mechanical properties, high temperature resistance, and low temperature. Resistance also requires that the material itself has a high cost performance to meet the needs of industrial production. Therefore, the composite board material arises at the historic moment. Titanium and its alloys have the advantages of good corrosion resistance, good heat resistance, and excellent low temperature performance, and stainless steel has excellent cost performance. Using titanium and its alloys as the surface ...

Claims

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Application Information

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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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