CN1450199A - Low chromiun reinforced passivation liquid with self-adjusting function for galvanized piece - Google Patents
Low chromiun reinforced passivation liquid with self-adjusting function for galvanized piece Download PDFInfo
- Publication number
- CN1450199A CN1450199A CN 03111580 CN03111580A CN1450199A CN 1450199 A CN1450199 A CN 1450199A CN 03111580 CN03111580 CN 03111580 CN 03111580 A CN03111580 A CN 03111580A CN 1450199 A CN1450199 A CN 1450199A
- Authority
- CN
- China
- Prior art keywords
- component
- content
- self
- passivating
- low
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
The present invention relates to a low-chrome fortified passivating liquor with self-regulating function for galvanized component, including oxidation film-forming agent component, activating agent component, pH buffer component, In(+2) belancing component, auxiliary film-forming agent component and water. The component is soluble chrome salts of CrO3, etc., the component is CaSO4, the component is NaHCO2, the component is K3[Fe(CN)6] and the component mainly is inorganic soluble silicon-containing compound Na2SiO3 and Li2SiO3, etc., organic alcohol compound, silane coupling agent and HF. Said invented passivating liquor has a certain self-regulating function, and can raise stability of process and its service life, can obtain high-strength, anti-corrosive, thermal impact-resisting and beautiful passive film.
Description
(1) technical field
The present invention relates to the metal products surface treatment method, especially a kind of galvanized workpiece is had from the low chromium of conditioning function strengthen passivating solution.
(2) background technology
At present, to the passivation technology of galvanized workpiece, can be divided into chromium process and no chromium process two classes are arranged.Contain Cr in the former passive film
+ 6, having automatic reparation passive film function, its solidity to corrosion and production cost all are better than not having chromium process.There is chromium process to be divided into high chromium and two kinds of passivation technologies of low chromium again,, therefore more and more is restricted, cause low chromium passivating technology in industrial production, to be used widely because there is severe contamination in high chromium passivating technology to environment.But conventional low chromium passivating technology is in process of production because passivating solution composition instability, often change, adopt conventional chemical analysis method, its analysis speed does not often catch up with big rhythm of production, mainly control, cause passivation quality instability with operator's experience.Especially in order to improve the solidity to corrosion of passive film, in passivating solution, add the various Si compounds that contain, make problems such as low chromium passivating technology stability, operability seem more outstanding.
(3) summary of the invention
Task of the present invention is exactly that a kind of automatic adjusting passivating solution concentration, the technology that provide at the problems referred to above are simple, stable, cost is low, pollutes little low chromium reinforcement passivating solution.In order to realize this purpose, comprise in the passivation liquid composition of the present invention being oxidized to film component (A), activator component (B), PH buffer components (C), Zn
+ 2Poiser component (D), secondary film formers component (E), all the other are water.Component (A) is CrO
3Etc. the solubility chromic salts, its content is with CrO
3Count 8～15g/L, optimum value is 13g/L.Component (B) is CaSO
4, utilize CaSO
4The characteristics that do not change substantially of solubleness with variation of temperature, regulate SO in the passivating solution automatically
-2 4Concentration, and can work as CrO in the passivating solution
3Concentration reaches the Cr in the passivating solution under the condition of 8～15g/L
+ 6With SO
-2 4(activator) best proportioning.CaSO
4Content is 2～15g/L, and the best is 5g/L.Component (C) is sodium formiate NaHCO
2, its content is the best 5g/L of being of 3～7g/L.Component (D) is Tripotassium iron hexacyanide K
3[Fe (CN)
6], owing to do not have Zn in the passivating solution
+ 2Can't form normal passive film, and Zn
+ 2Excessive also being harmful to forms normal passive film, and the Tripotassium iron hexacyanide can make unnecessary Zn
+ 2Form precipitation, make Zn
+ 2It is normal that amount keeps.Tripotassium iron hexacyanide content is 0.5～1g/L.Component (E) mainly is inorganic solubility silicon-containing compound Na
2SiO
3, Li
2SiO
3Deng, organic alcohols compound, silane coupling agent etc., and HF, the above two content respectively are 5～30g/L and 0.5～1mL/L, and the best is 10～20g/L and 0.5mL/L, and HF content is 0.5～3mL/L.The purpose that adds secondary film formers component (E) mainly is thermotolerance and the erosion resistance in order to improve passive film, and solubility alcohols and HF then can improve the stability of passivating solution.Experiment showed, passivating solution PH=1.3～1.7 passivation effect the bests.When pH value is undesirable, can add HNO in right amount
3Or NaOH adjustment pH value, make it reach required value.
(4) embodiment
Describe the present invention in detail with specific embodiment below.
Embodiment 1
CrO
3：13g/L CaSO
4：10g/L
NaHCO
2：5g/L K
3[Fe(CN)
6]：0.5g/L
Na
2SiO
3: 10g/L silane coupling agent: 0.5mL/L
Polyvinyl alcohol: 0.5mL/L
All the other: water passivation time: 15～30 seconds pH values: 1.5
Embodiment 2
Na
2Cr
2O
7：17g/L?CaSO
4：5g/L
NaHCO
2: 5g/L diethanolamine: 5g/L
Silicon sol: 10g/L all the other: water
Passivation time: 15～30 seconds pH values: 1.5
During preparation, polyvinyl alcohol is dissolved in 70～90 ℃ of tap water of about 1/4 working volume, under agitation drips Na after the cooling
2SiO
3Or silicon sol and with small amount of ethanol dissolved silane coupler solution; Under agitation add CrO
3The aqueous solution, add all the other compositions such as sodium formiate again.Add water to working volume at last, and use HNO
3Or about NaOH solution accent PH to 1.5, get final product work.
With the galvanized workpiece that passivating solution of the present invention is handled, can obtain the passive film of intensity height, anti-corrosion, heat shock resistance, beautiful appearance.
Claims (2)
1, a kind of galvanized workpiece is had from the low chromium of conditioning function strengthen passivating solution, comprise being oxidized to film component (A), activator component (B), PH buffer components (C), Zn
+ 2Poiser component (D), secondary film formers component (E) and water is characterized in that: component (A) is CrO
3Etc. the solubility chromic salts, its content is with CrO
3Count 8～15g/L; Component (B) is CaSO
4, its content is 2～15g/L; Component (C) is NaHCO
2, its content is 3～7g/L; Component (D) is K
3[Fe (CN)
6], its content is 0.5～1g/L; Component (E) mainly is inorganic solubility silicon-containing compound Na
2SiO
3, Li
2SiO
3Deng, organic alcohols compound, silane coupling agent, polyvinyl alcohol etc. and HF, the above two content respectively is 5～30g/L and 0.5～1mL/L, and HF content is 0.5～3mL/L.
2, according to claim 1 galvanized workpiece is had from the low chromium of conditioning function strengthen passivating solution, it is characterized in that: this passivating solution pH value is 1.3～1.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111580 CN1450199A (en) | 2003-04-28 | 2003-04-28 | Low chromiun reinforced passivation liquid with self-adjusting function for galvanized piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111580 CN1450199A (en) | 2003-04-28 | 2003-04-28 | Low chromiun reinforced passivation liquid with self-adjusting function for galvanized piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1450199A true CN1450199A (en) | 2003-10-22 |
Family
ID=28683972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03111580 Pending CN1450199A (en) | 2003-04-28 | 2003-04-28 | Low chromiun reinforced passivation liquid with self-adjusting function for galvanized piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1450199A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289741B (en) * | 2007-04-18 | 2010-05-19 | 宝山钢铁股份有限公司 | Chromium-free passivating liquid for surface treatment of electrogalvanized steel plate and use method thereof |
| CN101892480A (en) * | 2010-06-30 | 2010-11-24 | 岳西县创奇电器有限责任公司 | Normal-temperature colored trivalent chromium passivation process |
| CN103788737A (en) * | 2012-10-30 | 2014-05-14 | 攀钢集团攀枝花钢铁研究院有限公司 | Metal protection paint, preparation method, application and hot-dip metal material |
| CN103788740A (en) * | 2012-10-30 | 2014-05-14 | 攀钢集团攀枝花钢铁研究院有限公司 | Metal protection paint, preparation method, application and hot-dip metal material |
| WO2019006618A1 (en) * | 2017-07-03 | 2019-01-10 | 深圳市宏昌发科技有限公司 | Passivator, surface processing method of metal-plated part and metal workpiece |
| WO2019006617A1 (en) * | 2017-07-03 | 2019-01-10 | 深圳市宏昌发科技有限公司 | Passivator, metal workpiece and method of surface passivation therefor |
-
2003
- 2003-04-28 CN CN 03111580 patent/CN1450199A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289741B (en) * | 2007-04-18 | 2010-05-19 | 宝山钢铁股份有限公司 | Chromium-free passivating liquid for surface treatment of electrogalvanized steel plate and use method thereof |
| CN101892480A (en) * | 2010-06-30 | 2010-11-24 | 岳西县创奇电器有限责任公司 | Normal-temperature colored trivalent chromium passivation process |
| CN103788737A (en) * | 2012-10-30 | 2014-05-14 | 攀钢集团攀枝花钢铁研究院有限公司 | Metal protection paint, preparation method, application and hot-dip metal material |
| CN103788740A (en) * | 2012-10-30 | 2014-05-14 | 攀钢集团攀枝花钢铁研究院有限公司 | Metal protection paint, preparation method, application and hot-dip metal material |
| CN103788737B (en) * | 2012-10-30 | 2016-03-30 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of metal protection coating and its production and use and hot-dip metal plated material |
| CN103788740B (en) * | 2012-10-30 | 2016-06-22 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of metal protection coating and its production and use and hot-dip metal plated material |
| WO2019006618A1 (en) * | 2017-07-03 | 2019-01-10 | 深圳市宏昌发科技有限公司 | Passivator, surface processing method of metal-plated part and metal workpiece |
| WO2019006617A1 (en) * | 2017-07-03 | 2019-01-10 | 深圳市宏昌发科技有限公司 | Passivator, metal workpiece and method of surface passivation therefor |
| CN110809638A (en) * | 2017-07-03 | 2020-02-18 | 深圳市宏昌发科技有限公司 | Passivating agent, metal plated part surface treatment method and metal workpiece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4370177A (en) | Coating solution for metal surfaces | |
| CN102977774B (en) | A kind of modified silanized surface pretreatment agent containing octadecane alcohol radical Soxylat A 25-7 and preparation method thereof | |
| US4313769A (en) | Coating solution for metal surfaces | |
| CN106435553B (en) | A kind of zirconium-based metallic surface treating agent and application | |
| JPS61119677A (en) | Non-peroxide type trivalent chromium immobilizing composition and method | |
| CN103952688A (en) | Ceramic agent for hot galvanized plate and preparation method of ceramic agent | |
| CN109252150B (en) | Solvent method batch hot galvanizing environmental protection passivating solution and its preparation and application | |
| CN102993943A (en) | Modified silanized metal surface pre-treating agent containing octylphenol polyoxyethylene ether and preparation method thereof | |
| CN102977773B (en) | Modified silane surface pretreating agent containing polyving akohol and preparation method of modified silane surface pretreating agent | |
| CN1450199A (en) | Low chromiun reinforced passivation liquid with self-adjusting function for galvanized piece | |
| CN108220940B (en) | A kind of normal temperature environment friendly aluminium alloy passivating solution, preparation method and application method | |
| CN111575693A (en) | Chromium-free pre-passivation solution for hot-dip galvanized steel pipe | |
| CN104451634B (en) | Aluminum and aluminum alloy passivation solution, preparation method and using method thereof | |
| US4298405A (en) | Process for producing iron phosphate coatings at ambient temperature | |
| CN103695881A (en) | Normal-temperature sludgeless fast phosphating liquid and preparation method thereof | |
| CN101619196B (en) | High-temperature resistant inorganic zinc silicate workshop primer without benzene kind solvent and preparation method thereof | |
| CN108179368A (en) | Without the smokeless fluxing agent of zinc ammonium galvanizing by dipping | |
| CN106756939A (en) | aluminum passivation liquid and preparation method thereof | |
| CN102993870A (en) | Modified silanized metal surface pre-treating agent containing polyoxyethylene oleate and preparation method thereof | |
| CN101191209A (en) | Low-chromium deactivation liquid for zinc plating piece | |
| CN102030859B (en) | Water-borne acrylic resin and a preparation method thereof, as well as a water-borne dip-coating acrylic shop primer and a preparation method thereof | |
| CN103450799A (en) | Modified silanized metal surface pretreatment agent containing sodium carboxymethyl cellulose and preparation method thereof | |
| CN106148930A (en) | A kind of nano-silicon pottery Combined Processing liquid and preparation method thereof | |
| CN112609188A (en) | Environment-friendly neutral rust removal brightener and preparation process thereof | |
| CN103014687B (en) | Glycerol trilaurate-containing modified silanization metal surface pretreatment agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |