Water-based cleaning-free flux for lead-free welding flux and preparation method thereof
A lead-free solder, water-based technology, applied in the direction of welding equipment, welding/cutting media/materials, welding media, etc., can solve the problems of reducing flux activity, flux activator volatilization, and insulation performance reduction, so as to improve activation performance, surface tension reduction, and wettability improvement
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Embodiment 1
[0035] Add 0.3% of itaconic acid, 0.4% of glutaric acid and 0.3% of lactic acid, the balance of self-distilled deionized water, 0.6% of isopropanol, 1% of ethylene glycol, 1% of ethylene glycol butyl ether and Ethylene glycol ether 1%, polyethylene glycol 1000 0.62%, hydrazine hydrate 0.01%, DP-205 0.1%; after adding each component, stir at 35-45°C until completely dissolved and mixed evenly, after the mixture is cooled Filter to obtain flux.
Embodiment 2
[0037] Add 0.8% of succinic acid, 0.4% of triethanolamine and 0.4% of lactic acid, the balance of self-distilled deionized water, 1% of isopropanol, 1% of diethylene glycol, 1% of dipropylene glycol dimethyl ether and ethyl alcohol in the reaction vessel. Diol butyl ether 1%, glycerin 0.74%, hydrazine hydrate 0.03%, benzotriazole 0.01%, AP2590 0.08% and OP-10 0.46%; after adding each component, stir at 35-45°C until complete Dissolve and mix evenly, and filter to obtain flux after the mixture is cooled.
Embodiment 3
[0039] Add 1% succinic acid, 0.5% triethanolamine and 0.75% dl-malic acid successively in the reaction vessel, and the balance of self-evaporating deionized water,
[0040] Isopropyl Alcohol 0.64%, Triethylene Glycol 1.2%, Propylene Glycol Methyl Ether 1.2%, Ethylene Glycol Butyl Ether 1.2%, Polyethylene Glycol 2000 0.5%,
[0041] Hydrazine hydrate 0.04%, OP-10 0.1%; After adding each component, stir at 35-45°C until completely dissolved and mixed evenly. After the mixture is cooled, filter to obtain flux.
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