Technique for producing alkaline zincate galvanizing additive
A zincate galvanizing and production process technology, applied in the field of alkaline zincate galvanizing additive production technology, can solve the problems of pollution, environmental protection, complex components, etc. The effect of regulation and cost reduction
Inactive Publication Date: 2008-06-04
TIANJIN HANLONG ZINC PLATING
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Problems solved by technology
The composition is complex, the cost is high, and pollution is generated, which is not conducive to environmental protection
Method used
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Experimental program
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Effect test
Embodiment
[0006] Embodiment: A kind of alkaline zincate galvanizing additive production process, get 40 grams of ethylenediamine and add 0.5-8 gram of 2-mercaptan meta (two) indoles, in the mixture, add 60 ml of 12% formaldehyde The aqueous solution was stirred for 30-35 minutes and heated to 60°C, 60-70 grams of epichlorohydrin was added dropwise, stirred until the reaction was complete, and then refluxed for 1 hour.
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The invention provides a production technique for alkalinity zincate zinc-plating additive, wherein the ethylenediamine is added in with the 2-thiol group benzimidazole, the mixed liquid is added in with the formalin of which the concentration is 12 percent and stirred and heated, the chloroepoxy propane is dripped in the mixed liquid and stirred, after the complete reaction the mixed liquid is refluxed. The invention has the advantages of simplifying ingredients of the bath, conveniently adjusting and controlling the bath for lowering cost and being applicable to the passivation of the low chromium, along with the environmental protection.
Description
technical field [0001] The invention relates to a production process of an alkaline zincate galvanizing additive. Background technique [0002] At present, the key to alkaline zincate galvanizing is to select the appropriate additives, add organic additives in the electroplating solution, and add polarizing and bright additives at the same time in galvanizing production. The composition is complex, the cost is high, and pollution occurs, which is not conducive to environmental protection. Contents of the invention [0003] The object of the present invention is to overcome above-mentioned defect, a kind of alkaline zincate galvanizing additive production process is provided. [0004] The technical scheme of the present invention is: a kind of alkaline zincate galvanizing additive production process, it is characterized in that: take 40 grams of ethylenediamine and add 0.5-8 gram of 2-mercaptan meta (two) indoles, in the mixed solution Add 60ml of 12% formaldehyde aqueous...
Claims
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Inventor 刘贵喜
Owner TIANJIN HANLONG ZINC PLATING
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