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Titanium alloy coating and preparation method thereof

A titanium alloy and coating technology, applied in the field of titanium alloy coating and its preparation, can solve the problems of complex preparation process and high production cost

Active Publication Date: 2021-05-18
北京科技大学广州新材料研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned preparation process is complex and the production cost is high

Method used

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  • Titanium alloy coating and preparation method thereof
  • Titanium alloy coating and preparation method thereof
  • Titanium alloy coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of titanium alloy coating, its raw material is as follows:

[0043]

[0044] The preparation method of titanium alloy coating, comprises the steps:

[0045] (1) Preparation of titanium alloy coating pre-coating slurry: Weigh the solvent in proportion and place it in a dispersion tank, stir slowly, add binder in proportion until dissolved; add coating agent, light absorber, surface active Agent and HDH titanium powder, high-speed grinding and dispersing for 20min. The high-speed grinding and dispersing uses a planetary ball mill with a rotating speed of 1500 rpm.

[0046] (2) Pretreatment of the surface of the workpiece: use 100 mesh, 150 mesh, 250 mesh, 400 mesh and 600 mesh sandpaper to polish the surface of the workpiece in sequence, then ultrasonically clean it with water and ethanol for 20 minutes, and dry it.

[0047] (3) Apply the pre-coating slurry evenly on the pretreated workpiece surface;

[0048] (4) Under the protection of argon, the titanium al...

Embodiment 2

[0052] A kind of titanium alloy coating, its raw material is as follows:

[0053]

[0054] The preparation method of titanium alloy coating, comprises the steps:

[0055] (1) Preparation of titanium alloy coating pre-coating slurry: Weigh the solvent in proportion and place it in a dispersion tank, stir slowly, add binder in proportion until dissolved; add coating agent, light absorber, surface active Agent and TC4 alloy powder, high-speed grinding and dispersion for 30min. The high-speed grinding and dispersing uses a planetary ball mill with a rotating speed of 1000 rpm.

[0056] (2) Pretreatment of the surface of the workpiece: use 100 mesh, 150 mesh, 250 mesh, 400 mesh and 600 mesh sandpaper to polish the surface of the workpiece in sequence, then ultrasonically clean it with water and ethanol for 25 minutes, and dry it.

[0057] (3) Apply the pre-coating slurry evenly on the pretreated workpiece surface;

[0058] (4) Under the protection of argon, the titanium alloy...

Embodiment 3

[0062] A kind of titanium alloy coating, its raw material is as follows:

[0063]

[0064] The preparation method of titanium alloy coating, comprises the steps:

[0065] (1) Preparation of titanium alloy coating pre-coating slurry: Weigh the solvent in proportion and place it in a dispersion tank, stir slowly, add binder in proportion until dissolved; add coating agent, light absorber, surface active Agent and TA7 alloy powder, high-speed grinding and dispersion for 25min. The high-speed grinding and dispersing uses a planetary ball mill with a rotating speed of 1200 rpm.

[0066] (2) Pretreatment of the workpiece surface: use 100-mesh, 150-mesh, 250-mesh, 400-mesh and 600-mesh sandpaper in sequence to polish the surface of the workpiece, then ultrasonically clean it with water and ethanol for 23 minutes, and dry it.

[0067] (3) Apply the pre-coating slurry evenly on the pretreated workpiece surface;

[0068] (4) Under the protection of argon, the titanium alloy coatin...

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Abstract

The invention discloses a titanium alloy coating and a preparation method thereof. The titanium alloy coating is prepared from the following raw materials by weight: 40-85% of titanium or titanium alloy powder, 10-40% of a light absorber, 1-10% of a coating agent, 1-10% of a binder, 0.1-5% of a surfactant and the balance of a solvent, wherein the light absorbent comprises nano TiO2 and nano CeO2, the mass ratio of the nano TiO2 to the nano CeO2 is (1-4):1, the titanium alloy powder is any one of Ti-6Al-4V, Ti-5Al-2.5Sn and Ti-8Al-1Mo-1V, the coating agent is polyethylene glycol, the binder is polyvinyl alcohol (PVA), and the surfactant is OP-10. According to the invention, titanium alloy powder serves as a coating layer raw material, a titanium alloy coating prepared through a laser cladding method under argon protection has good corrosion resistance, the coating is popularized and applied to the field of corrosion prevention of industrial metal structures, the service life of a base material in a severe environment can be prolonged, the industrial corrosion problem is solved, the production cost can be effectively reduced, and the economic benefits of enterprises are improved.

Description

technical field [0001] The invention relates to the technical field of steel anticorrosion manufacturing, in particular to a titanium alloy coating and a preparation method thereof. Background technique [0002] Steel is known as the "skeleton of industry" and is the cornerstone of my country's industrial development. It is widely used in all walks of life. However, steel is more prone to corrosion in marine working conditions, which may cause huge economic losses and serious environmental pollution. [0003] Applying appropriate coatings on the surface of steel substrates is an effective way to slow down corrosion. Titanium metal, as a light-weight, high-strength structural material, has excellent immunity to the erosion of seawater and marine atmospheric environments, and is an important strategic metal material in the field of marine engineering equipment. However, most titanium alloy products currently on the market adopt the traditional production process of smelting-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/61C09D7/65C09D5/08C23C24/10
CPCC09D1/00C09D7/61C09D7/65C09D5/08C23C24/103
Inventor 张涛何新波
Owner 北京科技大学广州新材料研究院