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Method for preparing titanium-coated stainless steel composite plate

A stainless steel and clad plate technology, applied in metal material coating process, melt spraying, coating and other directions, can solve the problems of low yield of titanium materials, difficulty in obtaining titanium-steel clad plates, etc., and achieves good controllability, The effect of high composite strength and good corrosion resistance

Active Publication Date: 2015-11-04
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the common feature of the above methods is to directly use the finished titanium plate to be composited with the steel plate, but due to its own characteristics, the yield of titanium is low, and it is difficult to obtain a titanium-steel composite plate with a thinner titanium clad layer.

Method used

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  • Method for preparing titanium-coated stainless steel composite plate
  • Method for preparing titanium-coated stainless steel composite plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of titanium-coated stainless steel clad plate in the present embodiment comprises the following steps:

[0027] (1) Material preparation: 304 stainless steel plates with a thickness of 200mm×100mm×5mm and a thickness of 5mm are selected as the substrate, and low-oxygen and low-hydrogen high-purity titanium powder obtained by hydrogenation dehydrogenation method is used as the raw material for titanium coating. The particle size distribution of pure titanium powder is The range is 5-100 um, the average particle size is 32um, and the particle shape is irregular;

[0028] (2) Surface activation of stainless steel substrates: spherical Al 2 o 3 The method of high-speed particle bombardment is used for surface activation treatment of stainless steel substrates. al 2 o 3 The particle size distribution range of the particles is 10-30 um, and the average particle size is 20 um.

[0029] (3) High-speed spray deposition method to deposit pure titanium ...

Embodiment 2

[0032] The preparation method of titanium-coated stainless steel clad plate in the present embodiment comprises the following steps:

[0033] (1) Material preparation 430 stainless steel plate with a thickness of 200mm×100mm×3mm and a thickness of 3mm is selected as the substrate, and high-purity titanium powder is prepared by gas atomization method as the titanium coating raw material. The particle size distribution range of pure titanium powder is 10-50 um, the average particle size is 32 um, the particle shape is mainly spherical, and the rest are spherical particles.

[0034] (2) Surface activation of stainless steel substrates: spherical Al 2 o 3 The method of high-speed particle bombardment is used for surface activation treatment of stainless steel substrates. al 2 o 3 The particle size distribution range of the particles is 10-30 um, and the average particle size is 20 um.

[0035] (3) High-speed spray deposition method to deposit pure titanium layer: send pure ti...

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Abstract

The invention relates to a method for preparing a titanium-coated stainless steel composite plate by adopting superspeed injection deposition and rolling treatment. According to the method for preparing the titanium-coated stainless steel composite plate, a composite plate good in binding force is obtained by spraying pure titanium powder at a high speed and depositing the pure titanium powder on the surface of an activated base material, a titanium-coated stainless steel plate with a compact coating and with an interface in metallurgical bonding is obtained through hot rolling; and surface activating treatment is performed on the stainless steel base material by adopting a method of high-speed bombardment through spherical Al2O3 particles. According to the preparation method, the singe side or two sides of the surface of the stainless steel plate can be coated with titanium conveniently, and the thickness of a titanium-coated layer can be adjusted flexibly according to actual requirements. The preparation method is simple in process, good in controllability and high in production efficiency; and the prepared metal titanium plate has the advantages of being good in binding force, high in density, good in corrosion resistance and long in service life.

Description

technical field [0001] The invention relates to a preparation method of a titanium-coated stainless steel composite plate, in particular to a preparation method of a titanium-coated stainless steel composite plate that adopts ultra-high-speed spray deposition and rolling treatment. Background technique [0002] Metal layered composite materials are usually composited by two or more metal plates with different properties through special processing and preparation methods. This material has the physical and chemical properties of different metal material components at the same time, which not only overcomes the singleness of single metal material performance, but also complements each other in terms of price. Therefore, metal composite panels have been valued and used by various industries since their birth. [0003] Due to its excellent corrosion resistance and surface finish, stainless steel is widely used in various fields such as automobiles, construction, decoration,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/12C23C4/08C23C4/18
Inventor 杨晓萍史弼梁永立张俊宝张宇军
Owner BAOSHAN IRON & STEEL CO LTD
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