CN106399995A - Non-chrome hot galvanizing passivation solution and preparing method thereof - Google Patents
Non-chrome hot galvanizing passivation solution and preparing method thereof Download PDFInfo
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- CN106399995A CN106399995A CN201611078001.3A CN201611078001A CN106399995A CN 106399995 A CN106399995 A CN 106399995A CN 201611078001 A CN201611078001 A CN 201611078001A CN 106399995 A CN106399995 A CN 106399995A
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- water
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- chrome
- molybdate
- titanate
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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
- C23C22/40—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 molybdates, tungstates or vanadates
- C23C22/42—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 molybdates, tungstates or vanadates containing also phosphates
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention relates to a non-chrome hot galvanizing passivation solution and a preparing method thereof. The solution comprises 6% to 10% of titanate, 6% to 9% of molybdate, 5% to 8% of tungstate, 10% to 16% of water-based acrylate, 5% to 12% of phytic acid, 2% to 5% of sodium citrate, 4% to 8% of mineral acid, 4% to 10% of phosphoric acid and 35% to 45% of water. Compared with the prior art, the solution has the beneficial effects that the solution does not contain chrome, the salt spray test can reach 72 hours, and the passivation effect is good.
Description
Technical field
The invention belongs to field of metal surface treatment and in particular to a kind of for the surface treatment of metal galvanized sheet anti-corrosion and its
Preparation method.
Background technology
Galvanized sheet, refers to strip continuous hot-dipping galvanizing steel plate, and galvanized sheet is a kind of metallic zinc（Aluminium）Clad steel sheet.Extensively fit
For large public building, public factory building, movable plank house, steel pipe, automobile, steel-structure factory building, the industry such as civilian.
At present, domestic surface conditioning agent is Cr VI passivating solution and trivalent chromium deactivating liquid, but contains chromium in these passivating solutions
Acid anhydrides, because chromic anhybride is carcinogen, can adversely affect to health of human body, and chromic anhybride difficulty in later stage process
Larger, cause environmental pollution, be the product that national environmental protection department forbids strictly, for reducing environmental pollution, improve health of human body, I
Department develops a kind of new passivating solution to replace Cr VI and trivalent chromium deactivating liquid.
Number of patent application：201410389381.7 disclosing a kind of hot-dip galvanizing sheet steel chromium-free composite passivator, its raw material group
Become：Water-base resin 2.20%～2.30%, main salt compound 2.60%～2.65%, organosilan 0.10%～
0.15%, sulfate 0.07%～0.09%, inorganic zirconium salts 0.11%～0.13%, inorganic acid 0.09%～0.12%, remaining
For water.Preparation and application is：First organosilan is dissolved in water, stirs and add main salt compound to after be completely dissolved,
Add inorganic acid to survey pH value after dissolving, add sulfate and inorganic zirconium salts under stirring afterwards, after being completely dissolved, add water
Property resin, stirs and with ammoniacal liquor, pH value is adjusted to 3～4 after being completely dissolved to water-base resin, set aside for use.
Content of the invention
The present invention proposes a kind of Chrome-free Passivated Hot Galvanizing liquid and preparation method thereof.
The technical scheme is that and be achieved in that：A kind of Chrome-free Passivated Hot Galvanizing liquid is it is characterised in that include by weight
The following components of amount proportioning：Titanate 6-10%, molybdate 6-9%, tungstates 5-8%, water-and acrylate 10-16%, phytic acid 5-
12%th, sodium citrate 2-5%, inorganic acid 4-8%, phosphatase 24-10%, water 35-45%.
As preferred technical scheme, above-mentioned Chrome-free Passivated Hot Galvanizing liquid, including following components by weight ratio：Metatitanic acid
Salt 6%, molybdate 6%, tungstates 5%, water-and acrylate 10%, phytic acid 5%, sodium citrate 5%, inorganic acid 8%, phosphatase 11 0%, water
45%.
As preferred technical scheme, above-mentioned Chrome-free Passivated Hot Galvanizing liquid, including following components by weight ratio：Metatitanic acid
Salt 10%, molybdate 9%, tungstates 8%, water-and acrylate 16%, phytic acid 12%, sodium citrate 2%, inorganic acid 4%, phosphatase 24 %, water
35%.
As preferred technical scheme, above-mentioned Chrome-free Passivated Hot Galvanizing liquid, including following components by weight ratio：Metatitanic acid
Salt 8%, molybdate 7%, tungstates 7%, water-and acrylate 13%, phytic acid 8%, sodium citrate 4%, inorganic acid 6%, phosphoric acid 7%, water
40%.
Chrome-free Passivated Hot Galvanizing liquid, its preparation method is：First add water according under weight proportion normal temperature, then sequentially add
Inorganic acid, titanate, molybdate, tungstates, water soluble acrylic acid fat, phytic acid, sodium citrate, phosphoric acid, stir and dissolve.
Due to employing technique scheme, the present invention has beneficial effect following outstanding：
Do not contain chromium, not toxic carcinogen in constituent of the present invention, passivating solution forms matter surface protective film with zinc-plated plate surface, rise
To passivation, salt spray test reaches more than 72 hours, is the favorable substitutes of chromic anhybride.
Specific embodiment
The enforcement it is clear that described will be clearly and completely described to the technical scheme in the embodiment of the present invention below
Example is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of not making creative work, broadly falls into the model of present invention protection
Enclose.
Embodiment 1：
Weigh titanate 6%, molybdate 6%, tungstates 5%, water-and acrylate 10%, phytic acid 5%, lemon by weight ratio successively
Sour sodium 5%, inorganic acid 8%, phosphatase 11 0%, water 45%.First add water under each component normal temperature after the completion of weighing, then sequentially add
Inorganic acid, titanate, molybdate, tungstates, water soluble acrylic acid fat, phytic acid, sodium citrate, phosphoric acid, after being sufficiently stirred for dissolving be
Finished product passivating solution can be obtained.Process hot-dip galvanizing sheet steel with passivating solution, passivation thickness is 1.0um after testing, salt-fog resistant test reaches
75h, by the curved test verification of T its adhesive force flexure plane is smooth does not split, reach OT.
Embodiment 2：
Weigh titanate 10%, molybdate 9%, tungstates 8%, water-and acrylate 16%, phytic acid 12%, lemon by weight ratio successively
Lemon acid sodium 2%, inorganic acid 4%, phosphatase 24 %, water 35%.First add water under each component normal temperature after the completion of weighing, then add successively
Enter inorganic acid, titanate, molybdate, tungstates, water soluble acrylic acid fat, phytic acid, sodium citrate, phosphoric acid, after being sufficiently stirred for dissolving
Finished product passivating solution.Process hot-dip galvanizing sheet steel with passivating solution, passivation thickness is 1.2um after testing, salt-fog resistant test reaches
80h, by the curved test verification of T its adhesive force flexure plane is smooth does not split, reach OT.
Embodiment 3：
Weigh titanate 8%, molybdate 7%, tungstates 7%, water-and acrylate 13%, phytic acid 8%, lemon by weight ratio successively
Sour sodium 4%, inorganic acid 6%, phosphoric acid 7%, water 40%.First add water under each component normal temperature after the completion of weighing, then sequentially add
Inorganic acid, titanate, molybdate, tungstates, water soluble acrylic acid fat, phytic acid, sodium citrate, phosphoric acid, after being sufficiently stirred for dissolving be
Finished product passivating solution can be obtained.Process hot-dip galvanizing sheet steel with passivating solution, passivation thickness is 1.5um after testing, T curved test flexure plane is smooth
Do not split, reach OT, salt-fog resistant test reaches 83h, by the curved test verification of T its adhesive force flexure plane is smooth does not split, reach OT.
Embodiment 4：
Weigh titanate 7%, molybdate 8%, tungstates 6%, water-and acrylate 14%, phytic acid 10%, lemon by weight ratio successively
Sour sodium 4%, inorganic acid 6%, phosphoric acid 8%, water 37%.First add water under each component normal temperature after the completion of weighing, then sequentially add
Inorganic acid, titanate, molybdate, tungstates, water soluble acrylic acid fat, phytic acid, sodium citrate, phosphoric acid, after being sufficiently stirred for dissolving be
Finished product passivating solution can be obtained.Process hot-dip galvanizing sheet steel with passivating solution, passivation thickness is 1.3um after testing, salt-fog resistant test reaches
85h, by the curved test verification of T its adhesive force flexure plane is smooth does not split, reach OT.
In the above-described embodiments, passivating solution and zinc-plated plate surface form a kind of diaphragm of densification, fully serve corrosion resistant
The effect of erosion, and Chrome-free serves protective effect to human and environment.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of Chrome-free Passivated Hot Galvanizing liquid is it is characterised in that include following components by weight ratio：Titanate 6-10%,
Molybdate 6-9%, tungstates 5-8%, water-and acrylate 10-16%, phytic acid 5-12%, sodium citrate 2-5%, inorganic acid 4-
8%th, phosphatase 24-10%, water 35-45%.
2. according to a kind of Chrome-free Passivated Hot Galvanizing liquid described in claim 1 it is characterised in that include by weight ratio is following
Component：Titanate 6%, molybdate 6%, tungstates 5%, water-and acrylate 10%, phytic acid 5%, sodium citrate 5%, inorganic
Acid 8%, phosphatase 11 0%, water 45%.
3. according to a kind of Chrome-free Passivated Hot Galvanizing liquid described in claim 1 it is characterised in that include by weight ratio is following
Component：Titanate 10%, molybdate 9%, tungstates 8%, water-and acrylate 16%, phytic acid 12%, sodium citrate 2%, no
Machine acid 4%, phosphatase 24 %, water 35%.
4. according to a kind of Chrome-free Passivated Hot Galvanizing liquid described in claim 1 it is characterised in that include by weight ratio is following
Component：Titanate 8%, molybdate 7%, tungstates 7%, water-and acrylate 13%, phytic acid 8%, sodium citrate 4%, inorganic
Acid 6%, phosphoric acid 7%, water 40%.
5., according to the Chrome-free Passivated Hot Galvanizing liquid described in any one in claim 1-4, its preparation method is：Join according to weight
Ratio first adds water under normal temperature, then sequentially add inorganic acid, titanate, molybdate, tungstates, water soluble acrylic acid fat, phytic acid, lemon
Lemon acid sodium, phosphoric acid, stir and dissolve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611078001.3A CN106399995A (en) | 2016-11-30 | 2016-11-30 | Non-chrome hot galvanizing passivation solution and preparing method thereof |
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| CN201611078001.3A CN106399995A (en) | 2016-11-30 | 2016-11-30 | Non-chrome hot galvanizing passivation solution and preparing method thereof |
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| CN201611078001.3A Pending CN106399995A (en) | 2016-11-30 | 2016-11-30 | Non-chrome hot galvanizing passivation solution and preparing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326357A (en) * | 2017-08-02 | 2017-11-07 | 合肥市田源精铸有限公司 | A kind of passivation process of galvanized steel plain sheet |
| CN109112518A (en) * | 2018-11-08 | 2019-01-01 | 镇江市昌辉新材料有限公司 | A kind of hot galvanizing chrome-free tanning agent |
| CN110724945A (en) * | 2019-12-05 | 2020-01-24 | 长江润发(江苏)薄板镀层有限公司 | Surface passivation treatment process for galvanized steel sheet |
| CN114921741A (en) * | 2022-05-26 | 2022-08-19 | 中电建武汉铁塔有限公司 | Hot galvanizing process |
| CN115584496A (en) * | 2022-10-25 | 2023-01-10 | 福建省长汀金龙稀土有限公司 | Surface treatment method for permanent magnet, permanent magnet and protective film thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268583A (en) * | 2000-04-04 | 2000-10-04 | 华南理工大学 | Chrome-free passivating solution for protecting galvanized layer and its coating method |
| CN101886259A (en) * | 2010-06-25 | 2010-11-17 | 武汉钢铁(集团)公司 | Zinc coat environmental-friendly passivation solution and use method thereof |
-
2016
- 2016-11-30 CN CN201611078001.3A patent/CN106399995A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268583A (en) * | 2000-04-04 | 2000-10-04 | 华南理工大学 | Chrome-free passivating solution for protecting galvanized layer and its coating method |
| CN101886259A (en) * | 2010-06-25 | 2010-11-17 | 武汉钢铁(集团)公司 | Zinc coat environmental-friendly passivation solution and use method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326357A (en) * | 2017-08-02 | 2017-11-07 | 合肥市田源精铸有限公司 | A kind of passivation process of galvanized steel plain sheet |
| CN109112518A (en) * | 2018-11-08 | 2019-01-01 | 镇江市昌辉新材料有限公司 | A kind of hot galvanizing chrome-free tanning agent |
| CN109112518B (en) * | 2018-11-08 | 2021-11-16 | 镇江市昌辉新材料有限公司 | Hot galvanizing chromium-free passivator |
| CN110724945A (en) * | 2019-12-05 | 2020-01-24 | 长江润发(江苏)薄板镀层有限公司 | Surface passivation treatment process for galvanized steel sheet |
| CN114921741A (en) * | 2022-05-26 | 2022-08-19 | 中电建武汉铁塔有限公司 | Hot galvanizing process |
| CN114921741B (en) * | 2022-05-26 | 2023-11-10 | 中电建武汉铁塔有限公司 | Hot galvanizing process |
| CN115584496A (en) * | 2022-10-25 | 2023-01-10 | 福建省长汀金龙稀土有限公司 | Surface treatment method for permanent magnet, permanent magnet and protective film thereof |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Xiaoqi Inventor after: Tang Yong Inventor after: Li Shiming Inventor after: Sun Yanan Inventor before: Wang Xiaoqi |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171127 Address after: 255000 Shandong city of Zibo province high tech Zone Willow Road No. 125 advanced ceramics industry innovation park A block, Room 903 Applicant after: Zibo new energy Mstar Technology Ltd Applicant after: Beijing Gangyan Xinye ring science and Technology Co Ltd Address before: 255000 Shandong city of Zibo province high tech Zone Willow Road No. 125 advanced ceramics industry innovation park A block, Room 903 Applicant before: Zibo new energy Mstar Technology Ltd |
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Application publication date: 20170215 |
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| RJ01 | Rejection of invention patent application after publication |