CN102994927A - Hot dip galvanizing formulation - Google Patents
Hot dip galvanizing formulation Download PDFInfo
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- CN102994927A CN102994927A CN2012105576314A CN201210557631A CN102994927A CN 102994927 A CN102994927 A CN 102994927A CN 2012105576314 A CN2012105576314 A CN 2012105576314A CN 201210557631 A CN201210557631 A CN 201210557631A CN 102994927 A CN102994927 A CN 102994927A
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Abstract
The invention discloses a hot dip galvanizing formulation comprising the components in weight ratio: 10-28% of Zn, 5-7% of Mg, 7-9% of S, 9-10% of Sn, 6-8% of Mn, 10-14% of Cr, 8-12% of Sb, 2-3% of impurities and 25-27% of zinc ammonium chloride. The prepared hot dip galvanizing formulation has the advantages of no skip galvanizing, regular surface, uniform galvanizing layer and corrosion resistance.
Description
Technical field
The present invention relates to a kind of prescription of pot galvanize.
Background technology
Pot galvanize (galvanizing) also be galvanizing and galvanizing: be a kind of effective anti-corrosion of metal mode, be mainly used on the metal construction facility of every profession and trade.Be that the steel part after the rust cleaning is immersed in about the 500 ℃ zinc liquid that melt, make the steel component surface adhere to the zinc layer, thereby play the rot-resistant purpose.Hot dip galvanizing process flow process: finished product acid-washing-washing-Jia quickening liquid-oven dry-rack plating-cooling-medicine-cleaning-polishing-pot galvanize completion.Pot galvanize is to be developed by more ancient hot-dipping method, since France in 1836 is applied to industry to pot galvanize, in 1 hundred 40 history has been arranged.Yet pot galvanize industry is to follow in the last thirty years the develop rapidly of cold rolled strip and obtained extensive development.
As everyone knows; the weather-resistant mechanism of zinc has mechanical protection and electro-chemical protection; there are ZnO, Zn (OH) 2 and zinc subcarbonate protective membrane in zinc layer surface under the atomospheric corrosion condition; slow down to a certain extent the corrosion of zinc, this layer protective membrane (also claiming white rust) is damaged and can forms new rete.Serious when the zinc damage layer, when injuring the iron-based body, zinc produces electro-chemical protection to matrix, the standard potential-0.76V of zinc, and the standard potential-0.44V of iron, zinc was dissolved as anode when zinc and iron formed microbattery, and iron is protected as negative electrode.Obviously pot galvanize is better than electro-galvanizing to the weather-resistance of matrix metal iron.Its gordian technique is that preparation and the zinc liquid of plating assistant agent forms, when zinc liquid is selected in the bad situation, coating adheres to insecure, plating leakage occurs easily, pore coating uneven distribution occurs, under galvanizing flux is prepared burden irrational situation, then compactness of electroplating is poor, and color is not attractive in appearance, and erosion resistance is poor, and corrosion of coating occurs easily, affect work-ing life.
Summary of the invention
The object of the present invention is to provide and have without the equal prescription of the pot galvanize of even corrosion-resistant advantage of plating leakage, rule of surface, coating.
Technical scheme of the present invention is: a kind of prescription of pot galvanize, comprise zinc, magnesium, sulphur, tin, manganese, chromium, antimony, impurity and zinc ammonium chloride, each composition weight proportion is that zinc accounts for 10%-28%, and magnesium accounts for 5%-7%, and sulphur accounts for 7%-9%, tin accounts for 9%-10%, manganese accounts for 6%-8%, and chromium accounts for 10%-14%, and antimony accounts for 8%-12%, impurity accounts for 2%-3%, zinc ammonium chloride 25%-27%.
In a preferred embodiment of the present invention, described impurity comprises hydrogen, nitrogen and carbon.
In a preferred embodiment of the present invention, each composition weight proportion of the prescription of described pot galvanize is that zinc accounts for 18%, and magnesium accounts for 6%, and sulphur accounts for 8%, and tin accounts for 10%, and manganese accounts for 8%, and chromium accounts for 12%, and antimony accounts for 10%, and impurity accounts for 3%, zinc ammonium chloride 25%.
The prescription of a kind of pot galvanize of the present invention has without the equal even corrosion resistant advantage of plating leakage, rule of surface, coating.
Embodiment
Below in conjunction with preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
In one embodiment, a kind of prescription of pot galvanize comprises zinc, magnesium, sulphur, tin, manganese, chromium, antimony, impurity and zinc ammonium chloride, each composition weight proportion is that zinc accounts for 10%-28%, magnesium accounts for 5%-7%, and sulphur accounts for 7%-9%, and tin accounts for 9%-10%, manganese accounts for 6%-8%, chromium accounts for 10%-14%, and antimony accounts for 8%-12%, and impurity accounts for 2%-3%, zinc ammonium chloride 25%-27%, described impurity comprises hydrogen, nitrogen and carbon.
Further specify, each composition weight proportion of the prescription of described pot galvanize is that zinc accounts for 18%, and magnesium accounts for 6%, sulphur accounts for 8%, tin accounts for 10%, and manganese accounts for 8%, and chromium accounts for 12%, antimony accounts for 10%, impurity accounts for 3%, zinc ammonium chloride 25%, and the optimum temperuture of plating assistant agent is 60 ℃-65 ℃, temperature is lower, and plating assistant agent adheres to and can more inhomogeneous and not have effect; Temperature is higher, and then plating assistant agent adheres to too thickly, increases consumption.If certainly adhering to the zinc gray generation on workpiece of thicker plating assistant agent can reduce.Then becoming adverse effect, plating assistant agent deironing when but too thick mainly is the ferrous ion of removing in the plating assistant agent.Oxidation of divalent iron ion is become ferric ion, and ferric ion is hydrolyzed the generation ironic hydroxide.Ironic hydroxide is water insoluble, and is separated in being deposited in plating assistant agent.The invention provides a kind of prescription of pot galvanize, have without the equal even corrosion resistant advantage of plating leakage, rule of surface, coating.
The specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention, and variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (3)
1. the prescription of a pot galvanize, it is characterized in that: comprise zinc, magnesium, sulphur, tin, manganese, chromium, antimony, impurity and zinc ammonium chloride, each composition weight proportion is that zinc accounts for 10%-28%, and magnesium accounts for 5%-7%, and sulphur accounts for 7%-9%, tin accounts for 9%-10%, manganese accounts for 6%-8%, and chromium accounts for 10%-14%, and antimony accounts for 8%-12%, impurity accounts for 2%-3%, zinc ammonium chloride 25%-27%.
2. the prescription of pot galvanize according to claim 1, it is characterized in that: described impurity comprises hydrogen, nitrogen and carbon.
3. the prescription of pot galvanize according to claim 1, it is characterized in that: each composition weight proportion of the prescription of described pot galvanize is that zinc accounts for 18%, and magnesium accounts for 6%, and sulphur accounts for 8%, and tin accounts for 10%, and manganese accounts for 8%, and chromium accounts for 12%, and antimony accounts for 10%, and impurity accounts for 3%, zinc ammonium chloride 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105576314A CN102994927A (en) | 2012-12-20 | 2012-12-20 | Hot dip galvanizing formulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105576314A CN102994927A (en) | 2012-12-20 | 2012-12-20 | Hot dip galvanizing formulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102994927A true CN102994927A (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105576314A Pending CN102994927A (en) | 2012-12-20 | 2012-12-20 | Hot dip galvanizing formulation |
Country Status (1)
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| CN (1) | CN102994927A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200704821A (en) * | 2005-05-19 | 2007-02-01 | Fletcher Building Holdings Ltd | Galvanising procedures |
| CN101981219B (en) * | 2008-05-14 | 2012-09-12 | 安赛乐米塔尔研究与发展有限责任公司 | Method for producing a coated metal strip having an improved appearance |
| WO2012141659A1 (en) * | 2011-04-13 | 2012-10-18 | U.S. STEEL KOŠICE, s.r.o. | Method of production of hot dip galvanized flat steel products with improved corrosion resistance |
-
2012
- 2012-12-20 CN CN2012105576314A patent/CN102994927A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200704821A (en) * | 2005-05-19 | 2007-02-01 | Fletcher Building Holdings Ltd | Galvanising procedures |
| CN101981219B (en) * | 2008-05-14 | 2012-09-12 | 安赛乐米塔尔研究与发展有限责任公司 | Method for producing a coated metal strip having an improved appearance |
| WO2012141659A1 (en) * | 2011-04-13 | 2012-10-18 | U.S. STEEL KOŠICE, s.r.o. | Method of production of hot dip galvanized flat steel products with improved corrosion resistance |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |