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Solder resist for water-based aluminum alloy high-temperature treatment

A technology of high-temperature treatment and solder resist, which is applied in coatings, fireproof coatings, polyurea/polyurethane coatings, etc., can solve problems such as high prices, solder resist effects that cannot reach foreign products, and coatings that no longer have solder resist effects. , to achieve good suspension performance, prevent adhesion, and good temperature resistance

Active Publication Date: 2018-08-17
合肥九州龙腾科技成果转化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the solder resists used are foreign products, which are expensive, and domestic similar products are cheap, but the solder resist effect is not as good as that of foreign products, and after each high-temperature treatment, the coating no longer has the solder resist effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of the solder resist for the above-mentioned water-based aluminum alloy high temperature treatment comprises the following specific steps:

[0030] Step 1, the production process of the modified attapulgite / nano zirconia composite powder is:

[0031] (1), weighing 100g of attapulgite clay with a fineness of 400 mesh, putting it into 1000ml of distilled water and stirring it with a stirrer for 4 hours, adding 10g of dispersant and 15g of sodium hexametaphosphate into the attapulgite clay suspension, and carrying out in a planetary mill High-speed ball milling for 4 hours, centrifuging the ground attapulgite clay suspension in a centrifuge for 2 to 5 times, each time for 5 minutes, and filtering to recover solids.

[0032] (2), equipped with 2.0mol / L ZrOCl 2 .8H 2 O solution 200ml, add HCl dropwise to adjust ZrOCl 2 .8H 2 The pH value of the O solution is about 0.5 to 1, then add 20ml of polyethylene glycol as a surfactant, carry out stirring tr...

Embodiment 2

[0038] The preparation method of the solder resist for the above-mentioned water-based aluminum alloy high temperature treatment comprises the following specific steps:

[0039] Step 1, the production process of the modified attapulgite / nano zirconia composite powder is:

[0040] (1), weighing 100g of attapulgite clay with a fineness of 300 mesh, putting it into 800ml of distilled water and stirring it with a stirrer for 4 hours, adding 10g of dispersant and 10g of sodium hexametaphosphate into the attapulgite clay suspension, and carrying out in a planetary mill High-speed ball milling for 3 to 4 hours, centrifuging the ground attapulgite clay suspension in a centrifuge for 2 to 5 times, each time for 5 minutes, and filtering to recover solids.

[0041] (2), equipped with 2.0mol / L ZrOCl 2 .8H 2 O solution 200ml, add HCl dropwise to adjust ZrOCl 2 .8H 2 The pH value of the O solution is about 1, then add 15ml of polyethylene glycol as a surfactant, stir, stir with a cross bl...

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Abstract

The invention discloses a solder resist for water-based aluminum alloy high-temperature treatment. The solder resist comprises, in weight percent, 25-30wt% of modified concave soil / nano-zirconia composite powder, 20-25wt% of adhesives, 5%-10wt% of binding agents, 2%-5wt% of dispersing agents, 40%-60wt% of deionized water and 0.5-1wt% of silicone oil defoaming agents.

Description

technical field [0001] The invention relates to a water-based solder resist for high-temperature treatment of aluminum alloys, in particular to a water-based solder resist for high-temperature treatment of aluminum alloys prepared from modified attapulgite / nano zirconia composite powder and a preparation method thereof. Background technique [0002] In aluminum alloy welding, in order to improve the welding quality, a high temperature resistant solder resist coating is required to protect the parts that do not need to be welded so that the solder is only welded on the required solder points. This solder resist coating is called solder resist. The method of use of the product is to apply a thin layer of coating on the surface of the aluminum alloy, so as to cover the surface of the aluminum alloy, to protect, prevent the solder and change the flow direction of the solder. The solder resist coated on the surface of the aluminum alloy is heated In this state, there will be no r...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/62C09D7/61C09D7/65C09D7/63
CPCC08K2003/2244C08K2201/011C08L2201/08C08L2205/03C09D5/18C09D7/61C09D7/62C09D7/63C09D7/65C09D175/04C08L83/04C08L33/02C08K13/06C08K5/10C08K3/22C08K9/10C08K3/346
Inventor 姚义俊齐贵君饶伟锋刘斌葛颖颖姜人文
Owner 合肥九州龙腾科技成果转化有限公司
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