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Tantalum steel composite plate and preparation method thereof

A composite plate and steel plate technology, applied in chemical instruments and methods, lamination, coating, etc., can solve problems such as unsatisfactory continuous production, high production site requirements, exhaust gas pollution, etc., and achieve a wide range of product sizes. The effect of good environment and simple process

Active Publication Date: 2019-04-05
NANJING YOUTIAN METAL TECH
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Problems solved by technology

Explosive composite method is to use the huge energy generated by explosives at the moment of explosion to accelerate two metal plates to a very high speed and then collide rapidly for welding. However, the production noise is large and exhaust gas pollution is generated, which requires high requirements for the production site. It is not suitable for production in urban areas, the strength of the composite interface is uneven, and it is impossible to produce thin plates and plates with large areas, which cannot meet the requirements of continuous production

Method used

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  • Tantalum steel composite plate and preparation method thereof
  • Tantalum steel composite plate and preparation method thereof

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Embodiment Construction

[0026] A method for preparing a tantalum steel clad plate, specifically comprising the following steps:

[0027] 1) Select a carbon steel plate with a thickness of 100mm and a tantalum plate with a thickness of 10mm, and polish the surface to be bonded between the tantalum plate and the steel plate, so that the surface to be bonded has no oxide layer, impurities and voids, and presents a fresh metal surface;

[0028] 2) To prepare a release agent, take aluminum oxide powder and polyvinyl chloride powder with a mesh size greater than 200 and mix them with water in a ratio of (2-3): (1-2): 100 and stir evenly, and evenly spread it on the tantalum plate The non-joint surface, with a thickness of 0.3-0.8mm, should be dried statically or placed in an oven, and the temperature of the oven should not be higher than 180°C;

[0029] 3) if figure 1 As shown, place the side of the tantalum plate coated with the release agent 5 facing each other, and seal and weld the surrounding of the ...

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Abstract

The invention discloses a tantalum steel composite plate and a preparation method thereof. The tantalum steel composite plate comprises a tantalum plate layer and a steel plate layer, and a diffusionlayer is formed between the tantalum plate layer and the steel plate layer. The preparation method of the tantalum steel composite plate comprises the following steps: material selection, surface treatment, separant painting, tantalum plate welding, assembling (including periphery welding, ventilation tube welding, gas tightness inspection, vacuumizing and inert gas filling), heating, rolling, heat treatment, leveling, trimming, surface treatment, finishing composite plate. This method has low requirement for production site and is high in production efficiency and low in production cost.

Description

technical field [0001] The invention discloses a composite material and a manufacturing method thereof, in particular to a tantalum steel composite plate and a manufacturing method thereof. Background technique [0002] Tantalum is a rare refractory metal with high melting point, low vapor pressure and small thermal expansion coefficient. Since the surface of tantalum is very easy to form dense and stable tantalum pentoxide (Ta2O 5 ) protective film, showing very excellent corrosion resistance, no matter in cold or hot state, it does not react to hydrochloric acid, concentrated nitric acid and aqua regia. At room temperature, tantalum has no effect on alkali solution, chlorine gas, bromine water, dilute sulfuric acid and many other agents. In addition, tantalum and its alloys also have good high temperature strength, excellent processing performance, good welding performance and thermal conductivity. In view of its good comprehensive performance, tantalum has broad applic...

Claims

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Application Information

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IPC IPC(8): B32B37/00B32B37/06B32B15/01B32B15/18B32B3/24B32B33/00
CPCB32B3/266B32B15/013B32B15/18B32B33/00B32B37/00B32B37/06B32B2255/06
Inventor 魏洁陈怀浩
Owner NANJING YOUTIAN METAL TECH
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