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A kind of preparation method of titanium/tantalum composite plate and its product

A technology for composite plates and titanium alloy plates, which is applied in layered products, chemical instruments and methods, lamination auxiliary operations, etc., can solve the problems of not meeting industrial requirements, the bonding strength of the modified layer is too thin, and reduce the product cost. , The effect of strong combination and simple process

Active Publication Date: 2018-12-25
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the modified layer after tantalum penetration using this technology is only 15um thin, which still cannot meet the industrial requirements in the long-term acid corrosion environment
In addition, when surface technologies such as ion implantation, magnetron sputtering, and multi-arc ion plating are used to modify tantalum on titanium surfaces, there are problems of too thin modified layers or low bonding strength.

Method used

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  • A kind of preparation method of titanium/tantalum composite plate and its product
  • A kind of preparation method of titanium/tantalum composite plate and its product
  • A kind of preparation method of titanium/tantalum composite plate and its product

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preparation example Construction

[0034] figure 1 It is a schematic flow chart of the preparation method of the composite plate in the embodiment of the present invention. It can be seen from the figure that the preparation method of a titanium / tantalum composite plate proposed by the present invention includes the following steps:

[0035] S1: The titanium alloy plate and the pure tantalum plate are polished mechanically to remove the surface oxide layer and oil stains, and then ultrasonic cleaning is performed sequentially with an organic solvent and deionized water; the titanium alloy plate is preferably a TC4 titanium alloy plate. Described organic solvent is acetone and ethanol.

[0036] S2: Assemble the titanium alloy plate and pure tantalum plate obtained in step S1 into a billet. The assembly method is: lamination of the titanium alloy plate and pure tantalum plate, and laser spot welding at the side joint or using advanced argon welding TIG The precision welding repair machine performs spot welding o...

Embodiment 1

[0046] S1: Choose a TC4 titanium alloy plate with a length of 100mm×width 100mm×a thickness of 4mm and a pure tantalum plate with a length of 100mm×width 100mm×a thickness of 1mm, and use mechanical methods to polish the two kinds of plates to remove the surface oxide layer and oil stains, and then in turn Organic solvent ethanol and deionized water for ultrasonic cleaning;

[0047] S2: Assemble the titanium alloy plate and pure tantalum plate cleaned in the above step S1 into a billet. The assembly method is: attach the titanium alloy plate and pure tantalum plate, and perform laser spot welding on the side joint or use TIG precision The welding repair machine performs spot welding on the side joints. The laser spot welding equipment is YLR-4000 fiber laser, the spot welding parameters are welding power 3.5kW, welding time 150ms, shielding gas flow rate 35L / min;

[0048] S3: heating the slab assembled in step S2 to 950° C. at a heating rate of 120° C. / min, keeping it warm fo...

Embodiment 2

[0054] S1: Select a TC4 titanium alloy plate with a length of 100mm×width 100mm×a thickness of 4mm and a pure tantalum plate with a length of 100mm×width 100mm×a thickness of 2mm, and use mechanical methods to polish the two plates to remove surface oxide layer and oil stains, and then sequentially Organic solvent acetone and deionized water for ultrasonic cleaning;

[0055] S2: Assemble the titanium alloy plate and pure tantalum plate cleaned in the above step S1 into a billet. The assembly method is: attach the titanium alloy plate and pure tantalum plate, and perform laser spot welding on the side joint or use TIG precision The welding repair machine performs spot welding on the side joints. The laser spot welding equipment is YLR-4000 fiber laser, the spot welding parameters are welding power 3.5kW, welding time 150ms, shielding gas flow rate 35L / min;

[0056] S3: heating the slab assembled in step S2 to 1050° C. at a heating rate of 120° C. / min, keeping it warm for 20 mi...

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Abstract

The invention provides a preparation method of a Ti / Ta composite board and a product produced through the method and belongs to the technical field of production of composite board. The preparation method includes the steps of: S1) polishing to-be-composited surfaces of a titanium alloy board and a tantalum board to remove defects and oxide layers on the to-be-laminated surfaces and performing ultrasonic cleaning; S2) assembling the titanium alloy board and the tantalum board to form a rolling billet; S3) heating the rolling billet and maintaining the temperature; S4) rolling the rolling billet into a rolling machine until metallurgical bonding is formed between the titanium and tantalum, and air-cooling the composite board to room temperature; S5) thermal-treating the composite board; and S6) performing ultrasonic non-destructive detection to the composite board, and cutting the overflowed titanium alloy on edges of the composite board to obtain the Ti / Ta composite thin board, wherein thickness of the tantalum layer can reach 0.1 mm at lowest. The invention, for the first time, provides a composition process between the two materials, titanium and tantalum, through the hot-rolling method. The preparation method is simple in processes and allows large-scale industrial production. Especially, the method is quite low in use amount of the tantalum board to produce the Ti / Ta composite board.

Description

technical field [0001] The invention belongs to the technical field of composite plate preparation, and more specifically relates to a method for preparing a novel titanium / tantalum composite plate with thin tantalum coating. Background technique [0002] Titanium and its alloys have excellent comprehensive properties such as low density, high specific strength, good corrosion resistance, and good high-temperature mechanical properties. They are structural materials with great development potential and application prospects. It has a very wide range of applications in aerospace, shipbuilding, biomedicine, chemical engineering, sports equipment and other fields. [0003] Although titanium alloys have high application value in the above fields, in some special environments, titanium alloys also have their own performance deficiencies. For example, valves, pipes, and containers made of titanium alloys will slowly undergo acidic corrosion in high-strength acid environments (eve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B38/00B32B37/10B32B37/06B32B37/08
CPCB32B37/06B32B37/08B32B37/10B32B38/0012
Inventor 胡树兵王文凯胡可
Owner HUAZHONG UNIV OF SCI & TECH