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Halogen-free water-based and wash-free welding fluid

A flux and halogen-free technology, applied in welding medium, welding equipment, welding/cutting medium/material, etc., can solve hidden dangers in production safety, easy to cause fire, toxicity and other problems, reduce wage costs, reduce material costs, The effect of excellent soldering effect

Inactive Publication Date: 2010-03-17
东莞市焊宏爱法电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the solder liquid used in the electronic DIP industry uses low-boiling alcohols such as ethanol, methanol, and isopropanol as solvent carriers. These alcohols are volatile organic compounds (VOC), and the gases of these organic compounds have certain Toxic, if released into the air, it will cause pollution. According to environmental protection requirements, it is a substance that is gradually banned
Furthermore, these alcohols are flammable substances, which can easily cause fires in use and bring inevitable hidden dangers to safe production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This is a halogen-free water-based no-clean flux containing non-ionic surfactants. The content percentage of each raw material is:

[0030] Succinic acid: 1.20%

[0031] Glutaric acid: 0.50%

[0032] Salicylic Acid: 0.50%

[0033] Benzotriazole: 0.30%

[0034] OP-10: 0.20%

[0035] Diethyl succinate: 2.00%

[0036] Dimethyl adipate: 2.00%

[0037] Diethylene glycol monobutyl ether: 5.00%

[0038] Polymethylsiloxane: 0.30%

[0039] Deionized water 88.00%.

Embodiment 2

[0041] This is a halogen-free water-based no-clean flux containing defoaming agent. The content percentage of each raw material is:

[0042] Succinic acid: 1.50%

[0043] Salicylic Acid: 1.50%

[0044] Adipic acid: 0.50%

[0045] Triethylamine: 0.70%

[0046] TX-10: 0.30%

[0047] Butyl acetate: 2.00%

[0048] Amino acid ester 1.00%

[0049] Diethylene glycol monomethyl ether: 2.00%

[0050] Diethylene glycol monobutyl ether: 1.60%

[0051] Polyoxypropyl glyceryl ether: 0.20%

[0052] Deionized water 88.70%.

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PUM

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Abstract

The invention relates to a halogen-free water-based and wash-free welding fluid. By weight percentage, the welding fluid consists of 2.0% to 3.7% of organic acids, 0.1% to 0.5% of surface active agent, 1.5% to 5.0% of esters wetting agent, 2.0% to 15.0% of ether cosolvent, 0.05% to 1.0% of antioxidant, 0.03% to 0.5% of defoamer, and the balance of deionized water. The welding fluid of the invention has scientific design and reasonable preparation and has the advantages of halogen-free, excellent welding property, wash-free, high isolating resistance, no VOC material existing by using deionizedwater as solvent, environmental protection, noninflammable and inexplosive properties.

Description

technical field [0001] The product of the invention relates to the field of electronic materials, in particular to a halogen-free water-based no-clean flux. technical background [0002] At present, the solder liquid used in the electronic DIP industry uses low-boiling alcohols such as ethanol, methanol, and isopropanol as solvent carriers. These alcohols are volatile organic compounds (VOC), and the gases of these organic compounds have certain Toxicity, if emitted into the air, it will cause pollution. According to environmental protection requirements, it is a substance that is gradually banned. Furthermore, these alcohols are all flammable substances, which can easily cause fires in use and bring inevitable hidden dangers to safe production. In addition, organic alcohols are important chemical raw materials. It is a waste to volatilize a large amount of them as solvent carriers. It is the development trend of solder liquid to replace VOC with deionized water. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/362B23K35/363
Inventor 廖龙根孙德齐
Owner 东莞市焊宏爱法电子科技有限公司
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