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Aluminum alloy radiator and preparation method thereof

An aluminum alloy and heat sink technology, applied in the field of aluminum alloy heat sink and its preparation, can solve the problems of unfavorable human body and large environmental pollution, etc., and achieve the effects of good salt water immersion resistance, good adhesion, and good boiling water resistance

Active Publication Date: 2022-04-15
HANGZHOU ANYU TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase in the application of aluminum alloy radiators, the surface treatment technology of aluminum alloy radiators is also becoming more and more important. Most of the general treatment methods still use chromate treatment, but hexavalent chromium in chromate chemical treatment is more harmful to the environment. Big and very bad for the human body

Method used

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  • Aluminum alloy radiator and preparation method thereof
  • Aluminum alloy radiator and preparation method thereof
  • Aluminum alloy radiator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A preparation method of Mancini base compound,

[0045] Preparation of Mancini base compound: add formaldehyde and 2-amino-1-butanol to the solvent, react at a temperature of 25°C for 1h, then add catechol dropwise, react at a temperature of 35°C for 9h, spin Mancini base compound is obtained after steaming treatment; solvent is dehydrated alcohol, and the addition amount of formaldehyde is 6wt% of solvent, and the addition amount of 2-amino-1-butanol is 12wt% of solvent, and the addition amount of pyrocatechol It is 8wt% of the solvent.

Embodiment 2

[0047] A preparation method of an aluminum alloy radiator with a protective film attached,

[0048] Preparation of the metal complex: add a metal reagent to the Mancini base compound prepared in Example 1, and stir at 25° C. for 1 h to obtain a titanium complex. The metal reagent is fluotitanic acid, and the added amount of the metal reagent is 2.1wt% of absolute ethanol.

[0049] Surface pretreatment of aluminum alloy radiator profiles: immerse aluminum alloy radiator profiles in degreasing agent, remove oil at 60°C for 5 minutes, then immerse in alkaline cleaning solution, treat at 60°C for 10 minutes, then Immerse in pickling solution and treat at 30°C for 10 minutes to obtain a pretreated aluminum alloy radiator profile. The degreasing agent is an aqueous solution containing sodium bicarbonate, acetone and sodium dodecylbenzenesulfonate, containing 5wt% sodium bicarbonate in the degreasing agent, containing 0.8wt% acetone in the degreasing agent, containing The sodium do...

Embodiment 3

[0053] Compared with Example 2, this example differs only in that the content of the metal complex in the conversion solution is 1.5wt%.

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Abstract

The invention discloses an aluminum alloy radiator and a preparation method thereof, belongs to the technical field of aluminum alloy surface treatment, and discloses an aluminum alloy radiator attached with a protective film, and the protective film contains a Mannich base compound. The metal compound prepared from the Mannich base compound and the metal reagent is used in the conversion liquid to prepare the aluminum alloy radiator attached with the protective film, and the conversion liquid is good in stability and can be stably stored for more than 20 days under the condition that the pH value is adjusted to 5; the prepared protective film is high in adhesion amount, and the weight of the protective film is 75 mg / cm < 2 > or above; the corrosion resistance is good, and the corrosion resistance is more than 50s in a 3% potassium dichromate solution; the boiling water resistance is good, and the salt water soaking resistance is good.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy surface treatment, and in particular relates to an aluminum alloy radiator and a preparation method thereof. Background technique [0002] At present, aluminum alloy radiators have been widely valued due to their obvious advantages in light weight of materials, and are gradually replacing copper radiators in many fields. With the increase in the application of aluminum alloy radiators, the surface treatment technology of aluminum alloy radiators is also becoming more and more important. Most of the general treatment methods still use chromate treatment, but hexavalent chromium in chromate chemical treatment is more harmful to the environment. Large, it is also very unfavorable to the human body. [0003] The surface treatment technology of aluminum alloy mainly includes three methods: chemical conversion method, anodic oxidation method and electroless plating. Among them, the chemical con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/34C23C22/40C23C22/56C23C22/78C23G1/12C23G1/22F28F21/08
Inventor 章贤骏方涌凌建鸿白文鑫
Owner HANGZHOU ANYU TECH CO LTD
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