CN106756924A - A kind of passivating solution of coating steel pipe zinc coat and preparation method thereof - Google Patents
A kind of passivating solution of coating steel pipe zinc coat and preparation method thereof Download PDFInfo
- Publication number
- CN106756924A CN106756924A CN201611243377.5A CN201611243377A CN106756924A CN 106756924 A CN106756924 A CN 106756924A CN 201611243377 A CN201611243377 A CN 201611243377A CN 106756924 A CN106756924 A CN 106756924A
- Authority
- CN
- China
- Prior art keywords
- passivating solution
- steel pipe
- zinc coat
- coating steel
- preparation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
- C23C22/20—Orthophosphates containing aluminium cations
Abstract
The present invention relates to a kind of passivating solution of coating steel pipe zinc coat and preparation method thereof, its constituent component and its weight percentage ranges are respectively：Phosphate 10 15%, acrylic emulsion 20 30%, phosphoric acid 3 5%, inositol hexaphosphate 3 5%, nickel sulfate 3 5%, aluminum sulfate 3 5%, polyether antifoam agent 1 3%, remaining adds water to 100%.This passivating solution is using phosphate, acrylic emulsion as main component, it is attached with phosphoric acid, inositol hexaphosphate, aluminum sulfate, nickel sulfate as attachment component, the passivating solution stable performance prepared, any excitant pernicious gas will not be produced, toxic component is not contained, recycling need not discharge, environmental protection.
Description
Technical field
The invention belongs to field of metallurgy, it is related to the treatment of coating steel pipe zinc coat, especially a kind of coating steel pipe zinc coat
Passivating solution and preparation method thereof.
Background technology
The effective ways for being to improve steel pipe resistance to corrosion zinc-plated to steel pipe, the steel pipe corrosion-proof for being presently the most universal is arranged
Apply.Zinc corrosion rate very little in the environment of dry cleansing, but in a humid environment, zinc coat is easy to corrode, because
This zinc coat must be passivated treatment.In the past, the Passivation Treatment to zinc coat was generally processed using chromating.But due to
Chromate is poisonous, and harm is easily caused to environment, has been eliminated.At present, other salts for substituting chromate are generally used, such as
Silicate, titanate and tungstates.But its result is not very good.
By retrieval, following related patent document is found：
1st, a kind of preparation method (CN105088209A) of black brown chromium-free passivation liquid, belongs to metal surface treatment technology neck
Domain.The method is made acetic acid first with fruit such as hawthorn, green apples, then mixes with nickel nitrate, persulfuric acid calcium substep, using dense
Sulfuric acid and Ag2S are catalyzed, and finally use amber acid for adjusting pH, are aged it.The beneficial effects of the present invention are：So that film
Layer outward appearance is black brown, is occurred with spot without gloomy；The metallic article after zinc-plated is surface-treated using this passivating solution, its
Metallic article good corrosion resistance；The discharge of waste liquid is reduced, the effect of environmental protection is played.
2nd, a kind of passivating solution (CN103409742A) for electro-galvanized layer passivation, includes in every liter of passivating solution：It is high
1~3g of potassium manganate；Mass concentration is the 4~10ml of concentrated nitric acid of 65-68%；5~30g of aluminum sulfate；8~10g of sodium nitrate；Nickel sulfate
8~15g；Balance of water.The usage of the passivating solution includes：Step 1, soaks galvanized workpiece with passivating solution of the invention at room temperature；
Step 2, the galvanized workpiece after immersion is stopped 5~35 seconds in atmosphere, is then dried or is dried up；Step 3, will dry or dries up
Galvanized workpiece is aging 10~25 minutes at 60~90 DEG C.
By the contrast of technical characteristic, although patent document disclosed above no longer using chromate as passivator it is main into
Point, processing method does not use toxicity chromate high and carcinogenic, and environment will not be polluted, but its passivating solution is according to described
Processing method is not easy to form the film layer of densification on galvanized workpiece surface, and antiseptic property, color are not readily reachable by preferable skill
Art purpose, also has relatively big difference with the present patent application.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of coating steel pipe zinc coat of environment-protecting asepsis
Passivating solution and preparation method thereof.
The present invention solves the scheme that is used of its technical problem：
A kind of passivating solution of coating steel pipe zinc coat, its constituent component and its weight percentage ranges are respectively：
And, the phosphate includes molybdenum phosphate and potassium phosphate.
A kind of preparation method of the passivating solution of coating steel pipe zinc coat, step is as follows：
(1), according to the content of each component, once molybdenum phosphate, acrylic emulsion, phosphoric acid, inositol hexaphosphate are added to the water,
Stir, the temperature control of stirred tank is within 30 degree；
(2) nickel sulfate, aluminum sulfate are added by proportional quantity again, continue to stir 10 minutes, the temperature control of stirred tank is at 30 degree
Within；
(3) defoamer is added, passivating solution finished product is formed by stirring.
Advantages and positive effects of the present invention are：
This passivating solution uses molybdenum phosphate, acrylic emulsion as main component, attached with phosphoric acid, inositol hexaphosphate, sulfuric acid
Aluminium, nickel sulfate will not produce any excitant pernicious gas, be free of as attachment component, the passivating solution stable performance prepared
There is toxic component, recycling need not discharge, environmental protection.
Specific embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not limit
Qualitatively, it is impossible to which protection scope of the present invention is limited with this.
Embodiment 1：
A kind of passivating solution of coating steel pipe zinc coat, its constituent component and its weight percentage ranges are respectively：
The preparation method of passivating solution of the present invention is as follows：
(1), according to the content of each component, once molybdenum phosphate, acrylic emulsion, phosphoric acid, inositol hexaphosphate are added to the water,
Stir, the temperature control of stirred tank is within 30 degree；
(2) nickel sulfate, aluminum sulfate are added by proportional quantity again, continue to stir 10 minutes, the temperature control of stirred tank is at 30 degree
Within；
(3) defoamer is added, passivating solution finished product is formed by stirring.
Embodiment 2：
A kind of passivating solution of coating steel pipe zinc coat, its constituent component and its weight percentage ranges are respectively：
Its preparation method is with embodiment 1.
The nickel sulfate that the present invention is added, can effectively control steel tube surface aberration, improve the mobility of zinc liquid.
The aluminum sulfate that the present invention is added can also make Several Thiourea Derivatives on Zinc Plate Surface light, effectively improve the surface quality of steel pipe.
Claims (3)
1. a kind of passivating solution of coating steel pipe zinc coat, it is characterised in that：Its constituent component and its weight percentage ranges are distinguished
For：
2. the passivating solution of coating steel pipe zinc coat according to claim 1, it is characterised in that：The phosphate includes phosphoric acid
Molybdenum and potassium phosphate.
3. a kind of preparation method of the passivating solution of coating steel pipe zinc coat according to claim 1, it is characterised in that：Prepare
The step of method, is as follows：
(1) according to the content of each component, once molybdenum phosphate, acrylic emulsion, phosphoric acid, inositol hexaphosphate are added to the water, stirred
Uniformly, the temperature control of stirred tank is within 30 degree；
(2) nickel sulfate, aluminum sulfate are added by proportional quantity again, continue to stir 10 minutes, the temperature control of stirred tank 30 degree with
It is interior；
(3) defoamer is added, passivating solution finished product is formed by stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243377.5A CN106756924A (en) | 2016-12-29 | 2016-12-29 | A kind of passivating solution of coating steel pipe zinc coat and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243377.5A CN106756924A (en) | 2016-12-29 | 2016-12-29 | A kind of passivating solution of coating steel pipe zinc coat and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106756924A true CN106756924A (en) | 2017-05-31 |
Family
ID=58927388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611243377.5A Pending CN106756924A (en) | 2016-12-29 | 2016-12-29 | A kind of passivating solution of coating steel pipe zinc coat and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106756924A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250699A (en) * | 2008-03-27 | 2008-08-27 | 武汉科技大学 | Chromium-free passivation liquid for galvanized sheet and manufacture method thereof |
| CN101323948A (en) * | 2008-07-08 | 2008-12-17 | 洛阳旷谷毓新化工科技有限公司 | Low temperature curing type non-chromium passivation agent for galvanizing plate |
| CN101724836A (en) * | 2009-10-23 | 2010-06-09 | 启东市合成化工厂有限公司 | Passivating treating agent for environment-friendly galvanized steel sheets |
| CN101886260A (en) * | 2010-07-08 | 2010-11-17 | 南通飞拓生物科技有限公司 | Composite film chromium-free passivant |
-
2016
- 2016-12-29 CN CN201611243377.5A patent/CN106756924A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250699A (en) * | 2008-03-27 | 2008-08-27 | 武汉科技大学 | Chromium-free passivation liquid for galvanized sheet and manufacture method thereof |
| CN101323948A (en) * | 2008-07-08 | 2008-12-17 | 洛阳旷谷毓新化工科技有限公司 | Low temperature curing type non-chromium passivation agent for galvanizing plate |
| CN101724836A (en) * | 2009-10-23 | 2010-06-09 | 启东市合成化工厂有限公司 | Passivating treating agent for environment-friendly galvanized steel sheets |
| CN101886260A (en) * | 2010-07-08 | 2010-11-17 | 南通飞拓生物科技有限公司 | Composite film chromium-free passivant |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170531 |