Lead-free environmentally friendly soldering flux and preparation method thereof
A flux and environmental protection technology, applied in the field of preparation of solder flux, can solve the problems of decreased electrical insulation performance, decreased production efficiency, increased production cost, etc., and achieves the effects of excellent solderability, improved production efficiency, and stable performance.
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Embodiment 1
[0018] An embodiment of the present invention is made of raw materials containing the following mass percentages:
[0019] Polymerized rosin 0.005%,
[0020] Hydrogenated rosin 0.006%,
[0021] Succinic acid 0.5%,
[0022] Salicylic acid 0.4%,
[0023] Malic acid 0.599%,
[0024] Polyoxyethylene octylphenol ether 1.3%,
[0025] Diethylene glycol 50%,
[0026] Glycerol 47.19%.
[0027] The preparation process of the flux is: the polymerized rosin and hydrogenated rosin are pulverized by an X7-D small pulverizer, the pulverization fineness is 20-80 mesh, and the pulverization is once per 500 grams. The organic synthetic acid is pulverized at room temperature. Activator and mixed alcohol solvent are mixed according to the component formula ratio, poured into a stainless steel container, and then polymerized rosin and hydrogenated rosin powder are added to stir, stir until all the rosin is dissolved, then stop stirring, let stand for 4-6 hours, using 30 tablets The stainless steel plate and f...
Embodiment 2
[0029] An embodiment of the present invention is made of raw materials containing the following mass percentages:
[0030] Polymerized rosin 0.002%,
[0031] Hydrogenated rosin 0.003%,
[0032] Water white rosin 0.005%,
[0033] Oxalic acid 0.6%,
[0034] Succinic acid 0.5%,
[0035] Sorbic acid 0.5%,
[0036] Isooctylphenol polyoxyethylene ether 1.19%,
[0037] Ethylene glycol 48.5%,
[0038] Glycerol 48.7%.
[0039] The preparation method is the same as in Example 1.
Embodiment 3
[0041] An embodiment of the present invention is made of raw materials containing the following mass percentages:
[0042] Polymerized rosin 0.01%,
[0043] Oxalic acid 0.6%,
[0044] Salicylic acid 0.6%,
[0045] Sorbic acid 0.4%,
[0046] Fatty alcohol polyoxyethylene ether 1.39%,
[0047] Diethylene glycol 49.3%,
[0048] Glycerol 47.7%.
[0049] The preparation method is the same as in Example 1.
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