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Anti-corrosion treating fluid for aluminum alloy and application method of anti-corrosion treating fluid

An aluminum alloy, corrosion-resistant technology, applied in the field of treatment liquid, can solve the problems of poor corrosion resistance of film formation, etc., and achieve the effects of improving corrosion resistance, improving processing efficiency, and novel formula design

Pending Publication Date: 2018-09-04
汤广金
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conversion coating on the surface of aluminum or aluminum alloy treated in this way does not contain chromium and will not cause harm to the human body and the environment, but the corrosion resistance of the film is poor

Method used

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  • Anti-corrosion treating fluid for aluminum alloy and application method of anti-corrosion treating fluid

Examples

Experimental program
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Effect test

Embodiment 1

[0050] A method for preparing a corrosion-resistant treatment liquid for aluminum alloys, comprising the following steps:

[0051] (1) Weigh each raw material by weight: 1.5 parts of rare earth salt, 0.6 part of fluozirconic acid, 0.4 part of fluotitanic acid, 1 part of sodium tungstate, 3.5 parts of ammonium fluoroborate, 2 parts of zinc dihydrogen phosphate, and 2 parts of oxidizing agent , 2 parts of potassium fluorosilicate, 2.5 parts of silane, 30 parts of ethanol, 1 part of ammonium molybdate, 0.15 parts of Gemini surfactant, 6 parts of aqueous emulsion, 50 parts of deionized water;

[0052] (2) Stir water-based emulsion, ethanol, silane, fluozirconic acid, and fluotitanic acid at a speed of 300r / min for 20min, then add rare earth salt and stir at a speed of 200r / min for 6min, then add oxidant, sodium tungstate, fluoboric acid Ammonium, potassium fluorosilicate, zinc dihydrogen phosphate, ammonium molybdate, Gemini surfactant, and deionized water were mixed uniformly at ...

Embodiment 2

[0060] A method for preparing a corrosion-resistant treatment liquid for aluminum alloys, comprising the following steps:

[0061] (1) Weigh each raw material by weight: 1.5 parts of rare earth salt, 0.6 part of fluozirconic acid, 0.4 part of fluotitanic acid, 1 part of sodium tungstate, 3.5 parts of ammonium fluoroborate, 2 parts of zinc dihydrogen phosphate, and 2 parts of oxidizing agent , 2 parts of potassium fluorosilicate, 2.5 parts of silane, 30 parts of ethanol, 1 part of ammonium molybdate, 0.15 parts of Gemini surfactant, 6 parts of aqueous emulsion, 50 parts of deionized water;

[0062] (2) Stir water-based emulsion, ethanol, silane, fluozirconic acid, and fluotitanic acid at a speed of 300r / min for 20min, then add rare earth salt and stir at a speed of 200r / min for 6min, then add oxidant, sodium tungstate, fluoboric acid Ammonium, potassium fluorosilicate, zinc dihydrogen phosphate, ammonium molybdate, Gemini surfactant, and deionized water were mixed uniformly at ...

Embodiment 3

[0071] A method for preparing a corrosion-resistant treatment liquid for aluminum alloys, comprising the following steps:

[0072] (1) Weigh each raw material by weight: 1.5 parts of rare earth salt, 0.6 part of fluozirconic acid, 0.4 part of fluotitanic acid, 1 part of sodium tungstate, 3.5 parts of ammonium fluoroborate, 2 parts of zinc dihydrogen phosphate, and 2 parts of oxidizing agent , 2 parts of potassium fluorosilicate, 2.5 parts of silane, 30 parts of ethanol, 1 part of ammonium molybdate, 0.15 parts of Gemini surfactant, 6 parts of aqueous emulsion, 50 parts of deionized water;

[0073] (2) Stir water-based emulsion, ethanol, silane, fluozirconic acid, and fluotitanic acid at a speed of 300r / min for 20min, then add rare earth salt and stir at a speed of 200r / min for 6min, then add oxidant, sodium tungstate, fluoboric acid Ammonium, potassium fluorosilicate, zinc dihydrogen phosphate, ammonium molybdate, Gemini surfactant, and deionized water were mixed uniformly at ...

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Abstract

The invention relates to anti-corrosion treating fluid for an aluminum alloy and an application method of the anti-corrosion treating fluid. A preparation method of the anti-corrosion treating fluid for the aluminum alloy comprises the following steps: (1) weighing raw materials according to the parts by weight; (2) stirring a water-based emulsion, ethyl alcohol, silane, fluozirconic acid and fluotitanic acid for 10 to 30min at the rotating speed of 200 to 400r / min, adding rare-earth salts, stirring for 5 to 10min at the rotating speed of 200 to 400r / min, adding an oxidizing agent, sodium tungstate, ammonium borofluoride, potassium fluosilicate, zinc dihydrogen phosphate, ammonium molybdate, a Gemini surface active agent and water, stirring for 15 to 25min at the rotating speed of 200 to 400r / min, and uniformly mixing to obtain the anti-corrosion treating fluid for the aluminum alloy. According to the anti-corrosion treating fluid for the aluminum alloy and the application method thereof, provided by the invention, a practical value and functional components are adopted as indexes, the optimal technological condition of the anti-corrosion treating fluid for the aluminum alloy is researched, a formula design is novel and reasonable, the treatment efficiency of the treating fluid can be remarkably improved, and the corrosion resistance of the aluminum alloy is remarkably improved.

Description

technical field [0001] The invention relates to a treatment liquid, in particular to a corrosion-resistant treatment liquid for aluminum alloys and an application method thereof. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. [0003] Aluminum alloys usually use alloying elements such as copper, zinc, manganese, silicon, and magnesium. They were invented by German Alfred Wilm in the early 20th century, which greatly helped the development of aircraft. After World War I, the composition of German aluminum alloys was listed as a state secret. Compared with ordinary carbon steel, it is lighter and has corrosion resistance, but its corrosion resistance is not as good as that of pure aluminum. A protective oxide layer forms on the surface of aluminum alloys in a clean, dry environment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/44
Inventor 汤广金
Owner 汤广金
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