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Welding slag cleaning method

A technology of welding slag and cleaning agent, which is applied in the field of cleaning agent, can solve the problem of low cleaning agent use efficiency, and achieve the effect of easy storage and reduced dosage

Inactive Publication Date: 2020-05-19
SUZHOU JIMCEL ELECTRONICS NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage is: dissolve and remove the residual flux on the surface by soaking or spraying, and then use an oven to volatilize the residual solvent on the surface; the use efficiency of the cleaning agent is not high, and a large amount of organic waste liquid will be generated

Method used

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Examples

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Effect test

Embodiment 1

[0027] A new type of welding slag cleaning agent, select 40 parts of limonene, 30 parts of methanol, 30 parts of high-boiling range petroleum ether, do not add emulsifier and penetrating agent, then add limonene, methanol, and high-boiling range petroleum ether into the reaction vessel and mix well. .

Embodiment 2

[0029] A new type of welding slag cleaning agent, select 60 parts of limonene, 20 parts of ethanol, 20 parts of high-boiling range petroleum ether, do not add emulsifier and penetrating agent, then add limonene, methanol, and high-boiling range petroleum ether into the reaction vessel and mix well. .

Embodiment 3

[0031] A new type of welding slag cleaning agent, select 50 parts of limonene, 26 parts of isopropanol and ethanol 1:1 mixed solvent, 22 parts of high boiling range petroleum ether, 1 part of castor oil polyoxyethylene ether, and 1 part of penetrating agent. Wherein, the penetrating agent is a mixture of 1,4-cyclohexanediol dimethyl ether and N-benzylamine phenylenediamine, and the weight ratio of 1,4-cyclohexanediol dimethyl ether and N-benzylamine phenylenediamine is 1:1.

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PUM

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Abstract

The invention relates to the technical field of cleaning agents, in particular to a welding slag cleaning method. The cleaning method comprises the following steps: cleaning; the method comprises thefollowing steps: mixing corncob particles, a cleaning agent and a to-be-cleaned part in cleaning equipment and carrying out stirring contact, wherein the soldering flux on the surface of the part is dissolved and adsorbed on the corncob particles through the cleaning agent; discharging the mixture adsorbed with the corncob particles from the bottom, separating the part through the filter screen, and then pouring the corncob particles mixed with the cleaning agent into the part from the upper portion. The invention develops a novel cleaning mode, wherein by means of the adsorbability of the corncob particles through a slow stirring mode, the surfaces of the parts are in full contact friction with the corncob particles, wherein the welding slag on the surface of the part is dissolved in thecleaning agent and adsorbed in the corncob particles; meanwhile, the corncob particles can also play a certain role in polishing the surface of the part, and due to the fact that only the surfaces ofthe corncob particles need to be wrapped with a small amount of the cleaning agent, the cleaning requirement can be met, and the use amount of the cleaning agent can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of cleaning agents, in particular to a welding slag cleaning method. Background technique [0002] Flux is needed in the soldering process of electronic components, and flux is an important part of solder. After soldering, the residual flux on the substrate will adversely affect the performance of electronic components, so these substances need to be cleaned in the subsequent process. [0003] The volatilization of low-boiling organic solvents pollutes the entire working environment, and if high-boiling solvents are used, it will affect the subsequent drying process. Generally, immersion cleaning requires several immersions. During the entire cleaning process, a large amount of organic solvent is consumed, and the utilization rate of the solvent is not high, which increases the amount of waste liquid to be treated. [0004] In the prior art, Patent Application No. 01263674.6 discloses an improved cleaning ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/72C11D3/18C11D3/20C11D3/44C11D3/60C11D3/30C11D7/24C11D7/26C11D7/60C11D7/50B08B3/08
CPCB08B3/08C11D1/72C11D3/184C11D3/201C11D3/2068C11D3/30C11D3/43C11D7/244C11D7/262C11D7/263C11D7/5022
Inventor 刘鸣刘利娟孙宇亮
Owner SUZHOU JIMCEL ELECTRONICS NEW MATERIAL
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