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Titanium alloy self-lubricating composite film and preparation method thereof

A titanium alloy and composite film technology, applied in electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve the problems of unsuitability for industrialized large-scale production, large friction coefficient, complex preparation process, etc., to reduce friction coefficient, Good lubrication and anti-friction performance, the effect of simple equipment

Inactive Publication Date: 2013-05-15
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the shortcomings in the prior art that the friction coefficient is relatively large, the preparation process is complicated, and it is not suitable for industrialized large-scale production, the present invention proposes a titanium alloy self-lubricating composite film and its preparation method

Method used

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  • Titanium alloy self-lubricating composite film and preparation method thereof
  • Titanium alloy self-lubricating composite film and preparation method thereof
  • Titanium alloy self-lubricating composite film and preparation method thereof

Examples

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Effect test

Embodiment 1

[0038] This embodiment is a Ti6Al4V titanium alloy self-lubricating composite film, and the external dimensions of the sample are 25mm×20mm×2.5mm.

[0039] The self-lubricating composite film is composed of a ceramic oxide film and an epoxy resin-based composite material coating, and the ceramic oxide film is prepared on the surface of the titanium alloy sample, and the epoxy resin-based composite material coating is prepared on the surface of the ceramic oxide film .

[0040] The ceramic oxide film contains 19.20-24.59% of Ti, 50.16-55.38% of O, 6.63-8.24% of P, 6.98-9.53% of Si and 7.74-9.46% of Al. In this embodiment, the ceramic oxide film contains 21.59% Ti, 53.38% O, 7.64% P, 7.53% Si, and 8.86% Al.

[0041] The Ti in the ceramic oxide film is mainly derived from the matrix, P and Si are respectively derived from sodium silicate and sodium hexametaphosphate in the electrolyte components, and the content of O in the film layer is relatively high, indicating that micro-ar...

Embodiment 2

[0058] This embodiment is a Ti-2Al-1.5Mn titanium alloy self-lubricating composite film, and the external dimensions of the sample are 25mm×20mm×2.5mm.

[0059] The self-lubricating composite film is composed of a ceramic oxide film and an epoxy resin-based composite material coating, and the ceramic oxide film is prepared on the surface of the titanium alloy sample, and the epoxy resin-based composite material coating is prepared on the surface of the ceramic oxide film .

[0060] The ceramic oxide film contains 19.0-24.59% of Ti, 50.16-55.38% of O, 6.6-8.24% of P, 6.98-9.53% of Si and 7.74-9.46% of Al. In this embodiment, the ceramic oxide film contains 24.12% Ti, 50.16% O, 6.98% P, 9.53% Si, and 8.21% Al.

[0061] The Ti in the ceramic oxide film is mainly derived from the matrix, P and Si are respectively derived from sodium silicate and sodium hexametaphosphate in the electrolyte components, and the content of O in the film layer is relatively high, indicating that micro-a...

Embodiment 3

[0077] This embodiment is a Ti-5Al-4V titanium alloy self-lubricating composite film, and the external dimensions of the sample are 25mm×20mm×2.5mm.

[0078] The self-lubricating composite film is composed of a ceramic oxide film and an epoxy resin-based composite material coating, and the ceramic oxide film is prepared on the surface of the titanium alloy sample, and the epoxy resin-based composite material coating is prepared on the surface of the ceramic oxide film .

[0079] The ceramic oxide film contains 19.0-24.59% of Ti, 50.16-55.38% of O, 6.6-8.24% of P, 6.98-9.53% of Si and 7.74-9.46% of Al. In this embodiment, the ceramic oxide film contains 19.20% Ti, 53.43% O, 8.24% P, 9.18% Si, and 8.95% Al.

[0080] The Ti in the ceramic oxide film is mainly derived from the matrix, P and Si are respectively derived from sodium silicate and sodium hexametaphosphate in the electrolyte components, and the content of O in the film layer is relatively high, indicating that micro-ar...

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Abstract

The invention relates to a titanium alloy self-lubricating composite film and a preparation method thereof. The titanium alloy self-lubricating composite film consists of a ceramic oxide film and an epoxy resin-based composite coating, wherein the ceramic oxide film is prepared on the surface of a titanium alloy sample, and the epoxy resin-based composite coating is prepared on the surface of the ceramic oxide film. According to the invention, the composite film is prepared on the surface of a workpiece by using micro-arc oxidation and repeated coating methods. The titanium alloy self-lubricating composite film prepared by using the preparation method shows excellent lubricating property and favorable mechanical property, and the friction coefficient is greatly reduced; and the preparation method is simple to operate, simple in equipment and suitable for industrial large-scale production.

Description

technical field [0001] The invention relates to the technical field of titanium alloy friction reduction and wear resistance, in particular to a titanium alloy self-lubricating composite film and a preparation method thereof. Background technique [0002] Due to its low density, light weight, high specific strength, excellent corrosion resistance, heat resistance and non-magnetic properties, good low-temperature toughness and fatigue resistance, titanium alloy materials are known as "the third rising metal" and have been widely used Used in aviation, aerospace, shipbuilding, power generation, automobile, chemical industry, metallurgy, medical treatment, biology and sports and other fields. Due to the low hardness, large surface friction coefficient and poor wear resistance of titanium alloy, which lead to high viscosity and poor self-lubricating effect, titanium alloy workpieces are prone to bonding and seizure during installation, making titanium alloys Applications are su...

Claims

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Application Information

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IPC IPC(8): C25D11/26
Inventor 蔡剑赵远兴刘道新张晓化
Owner NORTHWESTERN POLYTECHNICAL UNIV
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