CN103741127B - A kind of zinc-nickel alloy coating passivating solution and passivating method thereof - Google Patents
A kind of zinc-nickel alloy coating passivating solution and passivating method thereof Download PDFInfo
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- CN103741127B CN103741127B CN201310626897.4A CN201310626897A CN103741127B CN 103741127 B CN103741127 B CN 103741127B CN 201310626897 A CN201310626897 A CN 201310626897A CN 103741127 B CN103741127 B CN 103741127B
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Abstract
The present invention relates to zinc-nickel alloy coating aftertreatment technology, especially a kind of zinc-nickel alloy coating passivating solution and passivating method thereof, be applied to field of metal material surface treatment, and composition comprises chromic oxide, sodium-chlor, hydrochloric acid, acetic acid, and it consists of:
Description
Technical field
The present invention relates to zinc-nickel alloy coating aftertreatment technology, especially a kind of zinc-nickel alloy coating passivating solution and passivating method thereof, be applied to field of metal material surface treatment.
Background technology
Zinc-nickel alloy coating itself has higher solidity to corrosion, but because zinc-nickel alloy main component is zinc, if do not carry out Passivation Treatment, be still easier to corrode in rugged environment, form zinc oxide or zinc hydroxide etc. to embroider in vain, thus affect zinc-nickel alloy coating protective and ornamental.
According to the service requirements of coating, suitable Passivation Treatment can be carried out to zinc-nickel alloy, obtain the passive film of different colours.At present, more common passive film color adularescent, iris, black, but lack the relevant report of reddish-brown passive film.
Summary of the invention
Goal of the invention: the formula in reddish-brown after a kind of zinc-nickel alloy passivation is provided, the passive film of acquisition have protective, ornamental, with the advantage such as base material bonding force is good.
The technical scheme taked is: a kind of zinc-nickel alloy coating passivating solution, and composition comprises chromic oxide, sodium-chlor, hydrochloric acid, acetic acid, and it consists of:
Further, zinc-nickel alloy coating passivating solution consists of:
Use the passivating solution in the present invention to carry out Passivation Treatment to zinc-nickel alloy coating, comprise the following steps:
Step 1: activation: adopt volume fraction be 10% ~ 15% hydrochloric acid activate, the time is 1S ~ 3S.
Step 2: passivation: each for above-mentioned passivating solution components in certain proportion stirred, forms passivating solution; Plated surface is covered with zinc-nickel alloy coating workpiece immerse passivating solution, passivation temperature and the time as follows:
Temperature: 18 ~ 30 DEG C;
Time: 30 ~ 60S;
Step 3: flowing cool water is washed: clean zinc-nickel alloy coating remained on surface passivating solution.
Step 4: dry up: dry up zinc-nickel alloy coating surface with clean pressurized air.
Step 5: dry: bake out temperature is 120 ~ 150 DEG C, and the time is 10min-20min.
Advantage/positively effect:
Not containing staining agent in this formula, utilize nickel ion in zinc-nickel alloy as rubefacient.First zinc-nickel alloy coating contacts with passivating solution and chemical dissolution occurs, and the zinc, the nickel ion that dissolve generation react with passivating solution and generate the material such as oxide compound, chromic salt.These materials cover coating surface, after drying up, drying, obtain the passive film fine and close, glossy, outward appearance presents reddish-brown.
The present invention fill a prescription the reddish-brown passive film and the base material that obtain bonding force by force, protective, good decorative property, all can form good passive film to the zinc-nickel alloy coating of different nickel content.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1:
A kind of zinc-nickel alloy coating passivating solution, composition comprises chromic oxide, sodium-chlor, hydrochloric acid, acetic acid, and it consists of:
Be 5% with above-mentioned passivating solution to Ni, surplus is that the zinc-nickel alloy coating of Zn carries out passivation.
Step 1: activation: adopt volume fraction be 10% ~ 15% hydrochloric acid activate, the time is 1S ~ 3S.
Step 2: passivation: stir after each for above-mentioned passivating solution components in certain proportion modulation, form passivating solution; Workpiece plated surface being covered with zinc-nickel alloy coating immerses passivating solution, notes to rock workpiece in treating processes, has ensured to obtain uniform passive film, passivation temperature and the time as follows:
Temperature: 18 ~ 30 DEG C;
Time: 30 ~ 60S;
Step 3: flowing cool water is washed: clean zinc-nickel alloy coating remained on surface passivating solution.
Step 4: dry up: dry up zinc-nickel alloy coating surface with clean pressurized air.
Step 5: dry: bake out temperature is 120 ~ 150 DEG C, and the time is 10min-20min.。
The passive film obtained is fine and close in, glossy reddish-brown, with bending method inspection passive film and base material bonding force good.
Embodiment 2:
A kind of zinc-nickel alloy coating passivating solution, composition comprises chromic oxide, sodium-chlor, hydrochloric acid, acetic acid, and it consists of:
Be 5% with above-mentioned passivating solution to Ni, surplus is that the zinc-nickel alloy coating of Zn carries out passivation.
Step 1: activation: adopt volume fraction be 10% ~ 15% hydrochloric acid activate, time 1S ~ 3S.
Step 2: passivation: stir after each for above-mentioned passivating solution components in certain proportion modulation, form passivating solution; Workpiece plated surface being covered with zinc-nickel alloy coating immerses passivating solution.Note to rock workpiece in treating processes, ensured to obtain uniform passive film.Passivation temperature and the time as follows:
Temperature: 18 ~ 30 DEG C;
Time: 30 ~ 60S;
Step 3: flowing cool water is washed: clean zinc-nickel alloy coating remained on surface passivating solution.
Step 4: dry up: dry up zinc-nickel alloy coating surface with clean pressurized air.
Step 5: dry: bake out temperature is 120 ~ 150 DEG C, and the time is 10min-20min.
The passive film obtained is fine and close in, glossy reddish-brown, with bending method inspection passive film and base material bonding force good.
Embodiment 3:
A kind of zinc-nickel alloy coating passivating solution, composition comprises chromic oxide, sodium-chlor, hydrochloric acid, acetic acid, and it consists of:
Be 18% with above-mentioned passivating solution to Ni, surplus is that the zinc-nickel alloy coating of Zn carries out passivation.
Step 1: activation: adopt volume fraction be 10% ~ 15% hydrochloric acid activate, time 1S ~ 3S.
Step 2: passivation: stir after each for above-mentioned passivating solution components in certain proportion modulation, form passivating solution; Workpiece plated surface being covered with zinc-nickel alloy coating immerses passivating solution.Note to rock workpiece in treating processes, ensured to obtain uniform passive film.Passivation temperature and the time as follows:
Temperature: 18 ~ 30 DEG C;
Time: 30 ~ 60S;
Step 3: flowing cool water is washed: clean zinc-nickel alloy coating remained on surface passivating solution.
Step 4: dry up: dry up zinc-nickel alloy coating surface with clean pressurized air.
Step 5: dry: bake out temperature is 120 ~ 150 DEG C, and the time is 10min-20min.
The passive film obtained is fine and close in, glossy reddish-brown, with bending method inspection passive film and base material bonding force good.
Embodiment 4:
A kind of zinc-nickel alloy coating passivating solution, composition comprises chromic oxide, sodium-chlor, hydrochloric acid, acetic acid, and it consists of:
Be 18% with above-mentioned passivating solution to Ni, surplus is that the zinc-nickel alloy coating of Zn carries out passivation.
Step 1: activation: adopt volume fraction be 10% ~ 15% hydrochloric acid activate, time 1S ~ 3S.
Step 2: passivation: stir after each for above-mentioned passivating solution components in certain proportion modulation, form passivating solution; Workpiece plated surface being covered with zinc-nickel alloy coating immerses passivating solution.Note to rock workpiece in treating processes, ensured to obtain uniform passive film.Passivation temperature and the time as follows:
Temperature: 18 ~ 30 DEG C;
Time: 30 ~ 60S;
Step 3: flowing cool water is washed: clean zinc-nickel alloy coating remained on surface passivating solution.
Step 4: dry up: dry up zinc-nickel alloy coating surface with clean pressurized air.
Step 5: dry: bake out temperature is 120 ~ 150 DEG C, and the time is 10min-20min.
The passive film obtained is fine and close in, glossy reddish-brown, with bending method inspection passive film and base material bonding force good.
Claims (3)
1. a zinc-nickel alloy coating passivating solution, it is characterized in that composition comprises chromic oxide, sodium-chlor, hydrochloric acid, acetic acid, it consists of:
2. zinc-nickel alloy coating passivating solution according to claim 1, is characterized in that zinc-nickel alloy coating passivating solution consists of:
3. use zinc-nickel alloy coating passivating solution as claimed in claim 1 zinc-nickel alloy coating to be carried out to the method for Passivation Treatment, comprise the following steps:
Step 1: activation: adopt volume fraction be 10% ~ 15% hydrochloric acid activate, the time is 1S ~ 3S;
Step 2: passivation: each for above-mentioned passivating solution components in certain proportion stirred, forms passivating solution; Plated surface is covered with zinc-nickel alloy coating workpiece immerse passivating solution, passivation temperature and the time as follows:
Temperature: 18 ~ 30 DEG C;
Time: 30 ~ 60S;
Step 3: flowing cool water is washed: clean zinc-nickel alloy coating remained on surface passivating solution;
Step 4: dry up: dry up zinc-nickel alloy coating surface with clean pressurized air;
Step 5: dry: bake out temperature is 120 ~ 150 DEG C, and the time is 10min-20min.
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| CN201310626897.4A CN103741127B (en) | 2013-11-28 | 2013-11-28 | A kind of zinc-nickel alloy coating passivating solution and passivating method thereof |
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| CN103741127A CN103741127A (en) | 2014-04-23 |
| CN103741127B true CN103741127B (en) | 2016-02-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038310A (en) * | 1988-06-06 | 1989-12-27 | 国营武汉八一二厂 | Little chromium passivating technology of no nitrate radical and sulfate radical |
| CN101041900A (en) * | 2006-12-05 | 2007-09-26 | 攀枝花钢企恒升包装制品有限公司 | Zinc plating deactivation liquid |
| CN101956190A (en) * | 2010-04-20 | 2011-01-26 | 山东建筑大学 | Preparation and passivation process of iridescent passivant agent for zinc coating |
| CN102828210A (en) * | 2012-09-10 | 2012-12-19 | 太原理工大学 | Method for electroplating zinc-nickel alloy through neodymium iron boron magnet ionic liquid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010030697A1 (en) * | 2010-06-30 | 2012-01-05 | Henkel Ag & Co. Kgaa | Process for the selective phosphating of a composite metal construction |
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2013
- 2013-11-28 CN CN201310626897.4A patent/CN103741127B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038310A (en) * | 1988-06-06 | 1989-12-27 | 国营武汉八一二厂 | Little chromium passivating technology of no nitrate radical and sulfate radical |
| CN101041900A (en) * | 2006-12-05 | 2007-09-26 | 攀枝花钢企恒升包装制品有限公司 | Zinc plating deactivation liquid |
| CN101956190A (en) * | 2010-04-20 | 2011-01-26 | 山东建筑大学 | Preparation and passivation process of iridescent passivant agent for zinc coating |
| CN102828210A (en) * | 2012-09-10 | 2012-12-19 | 太原理工大学 | Method for electroplating zinc-nickel alloy through neodymium iron boron magnet ionic liquid |
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