A kind of niobium steel clad plate and its preparation method

A composite board and niobium steel technology, applied in chemical instruments and methods, layered products, lamination devices, etc., can solve the problems of high production site requirements, high production noise, waste gas pollution, etc., and achieves low production site requirements. High processing efficiency and good corrosion resistance

Active Publication Date: 2021-03-09
NANJING YOUTIAN METAL TECH
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Problems solved by technology

The explosive welding composite method is usually carried out at room temperature, which refers to the method of using the impact force generated by the explosive explosion to cause the workpiece to collide quickly to achieve welding. However, due to the large production noise and waste gas pollution, it has high requirements for the production site and is not suitable for urban areas. Production, 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

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  • A kind of niobium steel clad plate and its preparation method
  • A kind of niobium steel clad plate and its preparation method

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Embodiment Construction

[0027] A preparation method of a niobium steel clad plate mainly comprises the following steps: material selection - surface treatment - application of release agent - welding niobium plate - forming blank (sealing and welding periphery - welding vent pipe - air tightness inspection - vacuuming - filling inert gas )—heating—rolling—heat treatment—leveling—edge trimming—surface treatment—finished composite sheet.

[0028] The preparation method of the niobium steel clad plate specifically includes the following steps:

[0029] Step (1) selecting a carbon steel plate with a thickness of 100mm and a niobium plate with a thickness of 10mm, and grinding the surfaces to be bonded between the niobium plate and the steel plate, so that the surfaces to be bonded are free of oxide layers, impurities and voids, and present a fresh metal surface;

[0030] Step (2) To prepare a release agent, take alumina powder and polyvinyl chloride powder with a mesh number greater than 200 meshes and m...

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Abstract

The invention discloses a niobium steel composite plate and a preparation method thereof. The niobium steel composite plate comprises a steel plate layer and a niobium plate layer, and a diffusion layer is formed between the steel plate layer and the niobium plate layer. The preparation method of the niobium-steel composite plate includes the following steps: material selection—surface treatment—smearing release agent—welding niobium plate—billet assembly (peripheral sealing and welding—welding vent pipe—airtight inspection—vacuumizing—filling inert gas)—heating— Rolling—heat treatment—levelling—edge trimming—surface treatment—finished composite plate; this method produces no pollution for the niobium steel composite plate, and the performance of the composite plate after final molding is excellent.

Description

technical field [0001] The invention discloses a composite material and a preparation method of the composite material, in particular a niobium steel composite plate and a preparation method thereof. Background technique [0002] The chemical properties of niobium are very stable, and a dense oxide film is formed on the surface at room temperature, which can protect the inside of the metal from corrosion. Niobium can resist the corrosion of molten alkali metals and acids (including aqua regia, hydrochloric acid, sulfuric acid, nitric acid and phosphoric acid, etc.), and has broad application prospects in the chemical industry. [0003] Although niobium has many excellent properties, its resource occupancy in the earth's crust is small, and its symbiosis with other metal elements makes smelting and extraction difficult, making it expensive and limiting its wide application. Niobium steel clad plate is a new bimetallic composite material with niobium as the cladding layer and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/01B32B37/06B32B37/10B32B15/18
CPCB32B15/013B32B37/06B32B37/10
Inventor 魏洁陈怀浩
Owner NANJING YOUTIAN METAL TECH
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