Method for preparing titanium-coated low-carbon steel composite plate

A low-carbon steel and low-carbon steel technology, applied in pressure inorganic powder coating and other directions, can solve the problems of low yield of titanium materials, difficulty in obtaining titanium-steel composite plates, etc., achieving good controllability, high composite strength, simple craftsmanship

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

Method used

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  • Method for preparing titanium-coated low-carbon steel composite plate
  • Method for preparing titanium-coated low-carbon steel composite plate

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Experimental program
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Embodiment 1

[0027] The preparation method in the present embodiment comprises the following steps:

[0028] (1) Material preparation: use 200mm×100mm×10mm low-carbon steel (IF) steel plate with a thickness of 10mm as the substrate, and low-oxygen and low-hydrogen high-purity titanium powder obtained by hydrogenation dehydrogenation as the titanium coating raw material, using gas The spherical 304 stainless steel powder produced by the atomization method is the raw material for the transition layer. Among them, the particle size distribution range of pure titanium powder is 5-100 um, the average particle size is 32 um, and the particle shape is irregular; the particle size distribution range of 304 stainless steel powder is 10-80 um, the average particle size is 32 um, and the particle shape is spherical ;

[0029] (2) Substrate pre-treatment: The treatment method is to remove the surface oxide layer by sandblasting first, and then use high-pressure gas to blow off the sandblasting residu...

Embodiment 2

[0034] The preparation method in the present embodiment comprises the following steps:

[0035] (1) Preparation of materials Q235 steel plate with a thickness of 200mm×100mm×5mm and a thickness of 5mm is selected as the substrate, and low-oxygen and low-hydrogen high-purity titanium powder obtained by hydrodehydrogenation is used as the raw material for titanium cladding. The particle size distribution range of pure titanium powder is 5-100 um, the average particle size is 32 um, and the particle shape is irregular; the particle size distribution range of 304 stainless steel powder is 10-50 um, the average particle size is 35 um, and the particle shape is spherical;

[0036] (2) Substrate pre-treatment: The treatment method is to remove the surface oxide layer by sandblasting first, and then use high-pressure gas to blow off the sandblasting residue.

[0037] (3) Deposition of the transition layer by high-speed spray deposition method: the above-mentioned 304 stainless steel p...

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Abstract

The invention relates to a method for preparing a titanium-coated low-carbon steel composite plate by adopting injection deposition and rolling treatment. According to the method for preparing the titanium-coated low-carbon steel composite plate, first a high-speed injection deposition technology is utilized to deposit 304 stainless steel powder on a pre-treated low-carbon steel plate to serve as a transition layer, pure titanium powder is injected at a high speed and deposited on the transition layer, a titanium-coated low-carbon plate with a compact coating and with an interface in metallurgical bonding is obtained finally through hot rolling, and the titanium-coated low-carbon steel composite plate comprising a low-carbon steel plate layer, a transition metal layer and a pure titanium layer. The singe side or two sides of the surface of the low-carbon steel plate can be coated with titanium conveniently by means of the preparation method, the thickness of a titanium-coated layer can be adjusted flexibly according to actual requirements, the thickness of the prepared titanium-coated layer ranges from dozens of microns to several millimeters, the method is simple in process, the thickness of the titanium-coated layer is controllable, and an interface of the prepared titanium-coated low-carbon steel composite plate is in metallurgical bonding and has the characteristic performance of high bonding strength.

Description

technical field [0001] The invention relates to a preparation method of a titanium-coated low-carbon steel composite plate, in particular to a preparation method of a titanium-coated low-carbon steel composite plate that adopts ultra-high-speed spray deposition and rolling treatment. Background technique [0002] Titanium has many excellent properties, such as low density, high specific strength, good heat resistance, excellent corrosion resistance and biocompatibility, etc., and is widely used in aviation, aerospace, navigation, chemical and other fields. With the development of metallurgical technology, the amount of titanium used in construction, automobile, medical and daily necessities is also growing rapidly. However, due to the low strength and high manufacturing cost of pure titanium, its application is limited. As the most commonly used structural material, carbon steel has some excellent properties, such as mechanical properties, weldability, thermal stability...

Claims

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Application Information

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IPC IPC(8): C23C24/04C23C24/06
Inventor 杨晓萍梁永立史弼张俊宝张宇军
Owner BAOSHAN IRON & STEEL CO LTD
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