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Anti-corrosion aluminum coating for titanium alloy connecting part for aluminum alloy composite structure

A composite structure and titanium alloy technology, which is applied in the field of anti-corrosion aluminum coatings for titanium alloy connectors used in aluminum alloy composite structures, can solve the problems of high temperature resistance, paint stripper resistance and self-lubricating performance, and achieve good high temperature resistance , the effect of preventing galvanic corrosion

Inactive Publication Date: 2020-01-14
沈阳市航达科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in terms of high temperature resistance, paint stripper resistance and self-lubricating performance, it cannot meet the special requirements of special working conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0033] An anti-corrosion aluminum coating for titanium alloy connectors for aluminum alloy composite structures, characterized in that the components of each material and the parts by weight of the components are: 300 parts of aluminum paste, 1000 parts of strontium chromate, 50 parts of molybdenum disulfide, heat-resistant 4000 parts of phenolic resin, 1000 parts of ethylene glycol ether acetate, 50 parts of polytetrafluoroethylene, 20 parts of bentonite, 120 parts of polyamide wax liquid variable additive, 10 parts of leveling additive;

[0034] The aluminum paste is a dispersion mixture of aluminum powder and solvent oil, wherein the mass percentage of aluminum powder is 60%, and the aluminum paste is a dispersion mixture of aluminum powder with a fineness of 600 mesh and No. 200 solvent oil.

[0035] The strontium chromate is industrial pigment-grade strontium chromate powder with a fineness of 600 mesh, the molybdenum disulfide is 1000 mesh powder molybdenum disulfide, and...

specific Embodiment 2

[0037] An anti-corrosion aluminum coating for titanium alloy connectors for aluminum alloy composite structures, characterized in that the components of each material and the parts by weight of the components are: 600 parts of aluminum paste, 400 parts of strontium chromate, 50 parts of zinc chromate, heat-resistant 1000 parts of phenolic resin, 8000 parts of ethylene glycol ether acetate, 100 parts of polytetrafluoroethylene, 60 parts of bentonite, 60 parts of polyamide wax liquid variable additive, 20 parts of leveling additive;

[0038] The aluminum paste is a dispersion mixture of aluminum powder and solvent oil, wherein the mass percentage of aluminum powder is 70%, and the aluminum paste is a dispersion mixture of aluminum powder with a fineness of 700 mesh and No. 200 solvent oil.

[0039] The strontium chromate is industrial pigment-grade strontium chromate powder with a fineness of 600 mesh, the zinc chromate is industrial pigment-grade zinc chromate powder with a fine...

specific Embodiment 3

[0041] An anti-corrosion aluminum coating for titanium alloy connectors for aluminum alloy composite structures, characterized in that the components and parts by weight of each material are: 400 parts of aluminum paste, 700 parts of strontium chromate, 300 parts of zinc chromate, disulfide 260 parts of molybdenum, 3000 parts of heat-resistant phenolic resin, 5000 parts of ethylene glycol ether acetate, 200 parts of polytetrafluoroethylene, 40 parts of bentonite, 100 parts of polyamide wax liquid additive, and 15 parts of leveling additive;

[0042] The aluminum paste is a dispersion mixture of aluminum powder and solvent oil, wherein the mass percentage of aluminum powder is 65%, and the aluminum paste is a dispersion mixture of aluminum powder with a fineness of 700 mesh and No. 200 solvent oil.

[0043] The strontium chromate is industrial pigment-grade strontium chromate powder with a fineness of not less than 600 mesh, the zinc chromate is industrial pigment-grade zinc chr...

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Abstract

The invention relates to an anti-corrosion aluminum coating for a titanium alloy connecting part for an aluminum alloy composite structure. The coating comprises the following material components in parts by weight: 300-600 parts of aluminum slurry, 400-1000 parts of strontium chromate, 0-300 parts of zinc chromate. 0-260 parts of molybdenum disulfide, 1000-4000 parts of thermal-resistant phenolicresin, 1000-8000 parts of ethylene glycol monoethyl ether acetate, 50-200 parts of polytetrafluoroethylene, 20-60 parts of bentonite, 60-120 parts of a polyamide wax liquid variation aid and 10-20 parts of a leveling agent. The coating is applicable to surface coating to a titanium alloy fastener, a titanium alloy pivot, and the like, is capable of preventing dissimilar metal galvanic corrosion of other metals such as an aluminum alloy with titanium alloy connecting parts, in addition, has very good high temperature resistance, paint peeling agent resistance and self lubrication performance.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to an anti-corrosion aluminum coating for titanium alloy connectors used in aluminum alloy composite structures. Background technique [0002] When titanium alloy connectors are assembled in structures such as aluminum alloys, nickel alloys, and high-alloy steels, due to the high potential difference, electrochemical galvanic corrosion will occur under the action of electrolytes. There are two traditional methods for electrochemical corrosion protection. Basic approaches: (1) insulate the anode or cathode; (2) eliminate ionic conductivity in the anode or cathode region. Based on the above two methods, there are mainly the following four protection methods: (1) use cadmium-plated or aluminum-plated fasteners; (2) use wet primer or elastic sealant during installation; (3) use Fasteners coated with organic or inorganic coatings; (4) Zinc-chromium coatings are used to c...

Claims

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Application Information

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IPC IPC(8): C09D161/06C09D127/18C09D5/10C09D7/61C09D7/62C09D7/65
CPCC08K2003/0812C08K2003/3009C08L2201/08C08L2205/03C09D5/103C09D5/18C09D161/06C09D7/61C09D7/62C09D7/65C08L27/18C08L77/00C08K13/06C08K3/08C08K3/24C08K3/30C08K3/346
Inventor 殷跃军张亮杨宏强韩长智
Owner 沈阳市航达科技有限责任公司
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