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A green, environmentally friendly, flux technology, used in welding media, welding equipment, welding/cutting media/materials, etc., can solve problems such as zero pollution, and achieve good safety, low residue, and good storage and use.
Inactive Publication Date: 2014-04-23
工业和信息化部电子第五研究所华东分所
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Abstract
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Problems solved by technology
[0005] The purpose of the present invention is to provide a water-based green flux to solve the problem of zero pollution in the field of flux
Method used
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Effect test
Embodiment 1
[0018] Embodiment 1, the following is the first raw material ratio of the water-based green flux of the present invention: 1% benzoic acid, 0.5% malic acid, 1.5% salicylic acid, 1.5% adipic acid, 0.8% succinamide, polyoxygen Ethylene-20-sorbitan monolaurate 0.2%, isooctylphenol polyoxyethylene ether 0.3%, deionized water 94.2%.
Embodiment 2
[0019] Embodiment 2, the following is the second raw material ratio of the water-based green flux of the present invention: 1% benzoic acid, 1% glutaric acid, 1.5% salicylic acid, 1.5% adipic acid, 0.05% triethylamine, Succinamide 0.8%, isooctylphenol ethoxylate 0.3%, benzotriazole 0.05%, deionized water 93.8%.
Embodiment 3
[0020] Embodiment three, the following is the third raw material ratio of the water-based green flux of the present invention: 0.5% malic acid, 1% succinic acid, 1.5% salicylic acid, 1.5% adipic acid, 0.85% succinamide, poly Oxyethylene-20-sorbitan monolaurate 0.2%, octylphenol polyoxyethylene ether 0.1%, benzotriazole 0.05%, polyethylene glycol 0.3%, deionized water 94.0%.
[0021] The beneficial effects of the water-based green and environment-friendly flux of the present invention are: the flux does not contain halogen compounds, is environmentally friendly, can significantly improve the residual insulation resistance after welding, and at the same time promotes wetting, and improves the fluxing performance of the flux. In addition, using The soldering flux of the invention has low residue after soldering, no cleaning process is required, the flux itself is a water-based matrix, is not easy to burn, and has good production, transportation, storage and use safety.
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Abstract
The invention discloses a water-based environment-friendly scaling powder which is formed by mixing the following raw materials such as an organic acid activating agent, an organic amine activating agent, a surface active agent, an annexing agent and deionized water. The organic acid activating agent has the enough chemical activity, and can be volatilized at lead-free soldering temperature, and no residue exists after soldering. The organic amine activating agent can improve the activity of the scaling powder, and can also play a role of a corrosion inhibitor. The surface active agent is the non-ionic active agent, and can reduce surface tension of solvent water, improve wetting power and improve the performance of the scaling powder. In addition, a foaming agent, a flatting agent, a brightening agent and other annexing agents can be added. The water-based environment-friendly scaling powder has the advantages that the scaling powder does not contain halogen compounds, is environmentally friendly, and can significantly improve residual insulation resistance formed after soldering, promote wetting, and improve the soldering-aid performance of the scaling powder, residual quantity formed after soldering is low, no cleaning process is needed, the scalding powder is based on water and is not prone to combustion, and production, conveying, storage and using safety are good.
Description
technical field [0001] The invention relates to a flux, in particular to a water-based green and environment-friendly flux. Background technique [0002] With the implementation of EU RoHS regulations and the voluntary certification of electronic information product pollution control uniformly implemented by the country, the electronic soldering process has already been transformed to lead-free, and green environmental protection, energy saving and low carbon have gradually become the future development trend of the electronic manufacturing industry. [0003] Common fluxes used in earlier leaded manufacturing processes have been replaced by lead-free fluxes. In order to increase the activity of the flux and improve the effect of the flux, the lead-free flux is often achieved by adding some active additives that are harmful to the environment. However, in the previous formula development, while improving the flux effect, the physical hazards caused by the volatilization of t...
Claims
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Application Information
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