Water-based cleaning-free scaling powder

A no-cleaning and flux technology, applied in the direction of welding media, welding equipment, welding/cutting media/materials, etc., can solve problems such as poor stability and insulation performance, poor flux spreading and wettability, etc., to achieve Avoid corrosion, guarantee the original activity, improve the activity effect

Active Publication Date: 2018-04-27
深圳市傲牛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is to provide a water-based no-cleaning flux for the disadvantages of poor spreadability and wettability, poor stability and insulation performance of traditional fluxes.

Method used

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  • Water-based cleaning-free scaling powder
  • Water-based cleaning-free scaling powder

Examples

Experimental program
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Effect test

example 1

[0024] In parts by weight, take 100 parts of deionized water, 4 parts of ethyl ether, 5 parts of aromatic ether, 4 parts of butyl acetate, 4 parts of petroleum resin, 5 parts of terpene resin, and stir at high speed with a stirrer at 1500r / min 5h, get the solvent; in parts by weight, take 15 parts of citric acid, 6 parts of lactic acid, 10 parts of polyaspartic acid, 10 parts of polyallylamine, 10 parts of polyethyleneimine, and stir and mix with a glass rod for 60 minutes. Obtain the active substance; in parts by weight, take 10 parts of surfactant, 8 parts of corrosion inhibitor, 15 parts of thixotropic agent, 20 parts of film-forming aids, 6 parts of antioxidant, and mix with glass rod for 60 minutes to obtain Additives: In parts by weight, take 100 parts of solvent, 15 parts of active material, 8 parts of additives, pour them into the mixer, and pour nitrogen into the mixer at a rate of 80mL / min. Under nitrogen protection, Stir and mix at 800r / min for 5h, discharge and fill...

example 2

[0026] In parts by weight, take 100 parts of deionized water, 4 parts of diethyl ether, 4 parts of butyl acetate, 4 parts of petroleum resin, 5 parts of terpene resin, and stir at high speed with a stirrer at 1500r / min for 5h to obtain the solvent; In parts by weight, take 15 parts of citric acid, 6 parts of lactic acid, 10 parts of polyaspartic acid, 10 parts of polyallylamine, and 10 parts of polyethyleneimine in sequence, stir and mix with a glass rod for 60 minutes to obtain the active substance; In parts by weight, sequentially take 10 parts of surfactant, 8 parts of corrosion inhibitor, 15 parts of thixotropic agent, 20 parts of film-forming aids, 6 parts of antioxidant, stir and mix with a glass rod for 60 minutes to obtain additives; Count, take 100 parts of solvent, 15 parts of active material, 8 parts of additives, pour them into the mixer, pour nitrogen into the mixer at a rate of 80mL / min, and rotate at 800r / min under nitrogen protection Stir and mix for 5 hours, di...

example 3

[0028] In parts by weight, take 100 parts of deionized water, 4 parts of diethyl ether, 5 parts of aromatic ether, 4 parts of butyl acetate in sequence, and stir with a stirrer at a high speed of 1500r / min for 5 hours to obtain the solvent; in terms of parts by weight, Take 15 parts of citric acid, 6 parts of lactic acid, 10 parts of polyaspartic acid, 10 parts of polyallylamine, and 10 parts of polyethyleneimine in sequence, stir and mix with a glass rod for 60 minutes to obtain the active substance; Take 10 parts of surfactant, 8 parts of corrosion inhibitor, 15 parts of thixotropic agent, 20 parts of film-forming aids, 6 parts of antioxidant, stir and mix with a glass rod for 60 minutes to obtain additives; take 100 parts by weight in sequence Part solvent, 15 parts active substance, 8 parts additive, pour into the blender, pour nitrogen into the blender at a rate of 80mL / min, under nitrogen protection, stir and mix at 800r / min for 5h, discharge , Filling, that is, water-bas...

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Abstract

The invention discloses water-based cleaning-free scaling powder, and belongs to the technical field of powder metallurgy materials. The developed water-based cleaning-free scaling powder comprises asolvent, active matter and an additive. The solvent is composed of deionized water, diethyl ether, aromatic oxide, butyl acetate, petroleum resin and terpene resin. The active matter is composed of citric acid, lactic acid, polyaspartic acid, poly(allylamine) and polyethyleneimine. In addition, a surface active agent, a corrosion inhibitor, a thixotropic agent, a film forming assistant and an antioxidant are included in the additive. Soya bean lecithin and fatty glyceride serve as main ingredients of the film forming assistant, and the antioxidant is tea polyphenol and gallic acid. The water-based cleaning-free scaling powder prepared through the technical scheme has the advantages of excellent spreadability and wettability, and meanwhile, compared with traditional scaling powder, the insulation performance and stability of the water-based cleaning-free scaling powder are obviously improved.

Description

Technical field [0001] The invention discloses a water-based cleaning-free flux, which belongs to the technical field of powder metallurgy materials. Background technique [0002] In substrates such as printed circuit boards on which electronic components are mounted, electrodes are formed corresponding to terminals such as pins of electronic components. The fixing and electrical connection of the electronic components and the substrate are mainly performed by welding. In such a substrate, there is a possibility that ion migration (electrochemical migration) may occur due to reasons such as adhesion of water droplets between the electrodes to which the DC voltage is applied at the welded portion between the terminal of the electronic component and the electrode of the substrate. Ion migration (hereinafter referred to as migration) means that metal ions eluted from the anode accept electrons at the cathode between the electrodes to which a DC voltage is applied, and the reduced m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/362B23K35/363
CPCB23K35/36B23K35/362
Inventor 张帆许蘅陈龙
Owner 深圳市傲牛科技有限公司
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