Low-carbon low-volatility water-based flux and preparation method thereof
A low-volatility, flux technology, used in welding equipment, welding media, manufacturing tools, etc., can solve the problems of many volatile gases, high solid residues, polluting the environment, etc., to achieve round and bright solder joints, solid residues Low, chemically stable effect
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[0039] A preparation method of low-carbon and low-volatility water-based flux, characterized in that: comprising the following steps:
[0040] Step 1: Prepare the components according to the ratio required by the process; add the active agent into the solvent and stir at a temperature of 30°C~60°C to dissolve the active agent;
[0041] The second step: add the surfactant to the solution obtained in the first step, stir and dissolve at a temperature of 30°C~60°C;
[0042] Step 3: Add film formers, antioxidants, corrosion inhibitors, and additives to the solution obtained in Step 2, stir and dissolve at a temperature of 30°C to 60°C, mix well, and filter to obtain the flux.
[0043] Further: in the second and third steps, use heating equipment to keep the temperature in the range of 30°C to 60°C.
[0044] Active agent of the present invention, its selectable specific mass percentage is: 2%, 2.5%, 3%, 3.5%, 4%, 4.5% etc., all can meet the needs of the present invention; Surfacta...
Embodiment 1
[0046] In this implementation, the raw materials are prepared according to the following mass ratio: the active agent is a mixture of DL-malic acid and succinic acid, succinic acid:DL-malic acid=1:1, the mass ratio is 2%, and the surfactant TX-10 phosphate is 1.5% , the corrosion inhibitor is 0.01% hydroxypropyl chitosan, the antioxidant is 0.01% hydroquinone, and the film-forming agent is triethanolamine, which is 0.12%. The balance is solvent, and the solvent is deionized water.
[0047] When preparing, add the active agent into the solvent, stir at a temperature of 30°C to 60°C to promote its full dissolution, then add the surfactant to the solution, and stir at a temperature of 30°C to 60°C until it is completely dissolved; then Add film-forming agent, corrosion inhibitor, antioxidant and additives (if any) to the aforementioned solution, stir and dissolve at a temperature of 30°C to 60°C, mix evenly and cool, then filter to obtain the flux.
Embodiment 2
[0049] In this implementation, the raw materials are prepared according to the following mass ratio: the active agent is a mixture of DL-malic acid and adipic acid, the mass ratio is 3%, DL-malic acid: adipic acid=3:2, and the surfactant AEC-9NA is 2% , the film forming agent is triethanolamine 0.15%, the corrosion inhibitor is benzotriazole 0.1%, the antioxidant hydroquinone is 0.1%, the additive polyethylene glycol 400 is 0.2%, the balance is solvent, and the solvent is deionized water.
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