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Surface anti-corrosion treatment technology for aluminum fuel tanks

An anti-corrosion and fuel tank technology, which is applied to special surfaces, pretreated surfaces, surface reaction electrolytic coatings, etc., can solve the problems of unreliable surface treatment technology, few surface treatment technologies, and unsatisfactory anti-corrosion effect. To achieve the effect of good decoration, low cost and tight bonding

Active Publication Date: 2016-08-31
SHIYAN HENGRONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an anti-corrosion treatment technology for the surface of aluminum fuel tanks, so as to improve the technical problems of existing aluminum fuel tank surface treatment technologies, such as less reliable surface treatment techniques, and unsatisfactory anti-corrosion effects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: a kind of aluminum fuel tank surface anti-corrosion treatment technology, comprises the steps:

[0015] A1 Degreasing: Put the oil tank to be degreased into the mixture prepared by 2 parts by weight of sodium carbonate, 1 part of sodium bicarbonate, 1 part of sodium silicate, 2 parts of sodium phosphate, 1 part of surfactant and 90 parts of deionized water. Soak in the weak alkaline degreasing solution for 10 minutes. After the degreasing is completed, rinse the surface of the fuel tank with clean water, drain the water stains, and dry at 50°C for 25 minutes until the fuel tank is completely dry;

[0016] A2 Chemical polishing: Cover the aluminum fuel tank with the end cap, immerse in the polishing solution for 3 minutes, then take out the fuel tank, drain the water stains after cleaning, and dry at 50°C for 25 minutes until the fuel tank is completely dry; the polishing solution is composed of 80 parts of phosphoric acid, sulfuric acid 32 parts, 12 parts ...

Embodiment 2

[0020] Embodiment 2: a kind of aluminum fuel tank surface anti-corrosion treatment technology, comprises the steps:

[0021] B1 Degreasing: put the oil tank to be degreased into the preparation by weight parts of 3 parts of sodium carbonate, 1.5 parts of sodium bicarbonate, 1.5 parts of sodium silicate, 2.5 parts of sodium phosphate, 1.5 parts of surfactant and 95 parts of deionized water Soak in the weak alkaline degreasing solution for 15 minutes. After degreasing is completed, rinse the surface of the fuel tank with clean water, drain the water stains, and dry at 55°C for 25 minutes until the fuel tank is completely dry;

[0022] B2 chemical polishing: cover the aluminum fuel tank with the end cap, immerse in the polishing solution for 4 minutes, then take out the fuel tank, drain the water stains after cleaning, and dry at 55°C for 20 minutes until the fuel tank is completely dry; the polishing solution is composed of 89 parts of phosphoric acid, sulfuric acid 45 parts, 13...

Embodiment 3

[0026] Embodiment 3: a kind of aluminum fuel tank surface anti-corrosion treatment technology, comprises the steps:

[0027] C1 degreasing: put the oil tank to be degreased into the mixture prepared by weight parts of 4 parts of sodium carbonate, 2 parts of sodium bicarbonate, 2 parts of sodium silicate, 3 parts of sodium phosphate, 2 parts of surfactant and 100 parts of deionized water. Soak in the weak alkaline degreasing solution for 20 minutes. After degreasing is completed, rinse the surface of the fuel tank with clean water, drain the water stains, and dry at 60°C for 20 minutes until the fuel tank is completely dry;

[0028] C2 chemical polishing: cover the aluminum fuel tank with the end cap, immerse in the polishing solution for 5 minutes, then take out the fuel tank, drain the water stains after cleaning, and dry at 60°C for 20 minutes until the fuel tank is completely dry; the polishing solution is composed of 96 parts of phosphoric acid, sulfuric acid 56 parts, 15 ...

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PUM

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Abstract

The invention discloses a surface anti-corrosion treatment technology for aluminum fuel tanks. According to the technology, oxide films are formed on the surfaces of the aluminum fuel tanks through the processes of oil removing, polishing, anode oxidizing, closing and roller painting and are compact, appropriately thick and good in compatibility with coatings. The coatings are closely bonded to the surfaces of the fuel tanks, are high in strength and resistant to abrasion and can decorate and protect the outer walls of the fuel tanks well. According to the technical scheme, the technology has the advantages of being high in operability, low in cost and especially suitable for anti-corrosion work of the volume-produced aluminum fuel tanks.

Description

technical field [0001] The invention relates to a fuel tank anti-corrosion technology, in particular to an aluminum fuel tank surface anti-corrosion technology. Background technique [0002] The rust and corrosion prevention of steel fuel tanks is a very common problem. The quality of oil in my country is not high, and impurities such as water vapor in the oil will cause long-term corrosion to it. The rust produced after corrosion is not good for the engine and affects the performance of the car. power. Aluminum alloy fuel tank not only has the strength to meet the needs of use, but its corrosion resistance is far superior to steel fuel tanks. At present, more than 80% of heavy-duty trucks, buses, and multi-purpose vehicles have used aluminum fuel tanks, which will gradually replace steel fuel tanks. High-quality fuel tanks occupy a dominant position in the market. [0003] The main component of aluminum fuel tanks is aluminum alloy. Aluminum and its alloys will naturally f...

Claims

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Application Information

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IPC IPC(8): C23G1/22C23F3/03C25D11/06C25D11/24B05D1/28B05D3/00B05D5/08
CPCB05D1/28B05D3/002B05D5/083B05D2202/25B05D2350/50C23F3/03C23G1/22C25D11/06C25D11/246
Inventor 许付权熊陵会
Owner SHIYAN HENGRONG IND
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