CN101289742B - Phosphorization liquid for zinc or zinc-aluminium alloy - Google Patents
Phosphorization liquid for zinc or zinc-aluminium alloy Download PDFInfo
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- CN101289742B CN101289742B CN2007100212804A CN200710021280A CN101289742B CN 101289742 B CN101289742 B CN 101289742B CN 2007100212804 A CN2007100212804 A CN 2007100212804A CN 200710021280 A CN200710021280 A CN 200710021280A CN 101289742 B CN101289742 B CN 101289742B
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Abstract
The invention discloses a phosphating solution for zinc or allumen, belonging to the metal surface treatment technique. The phosphating solution comprises the following raw materials in percentage by weight: 0.1-0.5 percent of zinc oxide, 0.2-0.5 percent of nitric acid, 3-4 percent of phosphoric acid, 0.02-0.04 percent of nickel nitrate, 0.02-0.2 percent of sodium fluoride, and the balance being water. The phosphating solution is made by stirring the raw materials are stirred until solid substance is completely dissolved and then filtering the raw materials. The product is used at normal temperature, and has the free acidity between 1 and 4 points, the total acidity between 25 and 35 points and the phosphating time between 2 and 8 minutes; a phosphating film is uniform, dense, solid and strong in the binding force with a coating; the adhesive force of the coating is over Grade 1; in addition, excessive AL<3+> dissolved in phosphating process can be complexed by F<-> in a bath solutionin time, so as to guarantee the normal proceeding of phosphating treatment. The invention has the advantages that: the phosphating solution is good in phosphating effect, low in processing cost, easyto have the process operated and regulated; a spray product treated with the phosphating solution is excellent in the adhesive force of coating and has good corrosion resistance as well as durability.
Description
Technical field
The present invention relates to a kind of phosphatization liquid that is used for metallic zinc or the processing of aluminium zinc alramenting, belong to field of metal surface treatment technology.
Background technology
Since the continuous quickening of whole world process of industrialization, world economy sustainable development, all types of industries disposal of pollutants aggravation, amblent air temperature is abominable, atmospheric pollution is serious, and Corrosion Of Steel speeds up, and is difficult to satisfy people's exigence the work-ing life of various iron and steel metal productss.Utilize the anodic protection effect of zinc, people handle for the corrosion resistance that strengthens ferrous materials carries out various zincincations to it, as electro-galvanizing, more adopt galvanizing to handle, and have significantly improved the antiseptic power of iron and steel metal products.The zinc liquid of zinc-plated usefulness according to the service requirements of coating except that containing metallic zinc, also be added into other various metallic elements, as aluminium, lead, antimony, magnesium, nickel, bismuth, titanium, manganese, copper, aluminium most importantly wherein, all the other add-ons are minimum, zinc coating contains aluminium after a little while below 0.2%, is 1-5% for a long time, and high reaches 55%.
For improving zinc layer or the single silver gray outward appearance of aluminium zinc layer, most methods that adopt paint spay-coating, for improving the weather resistance that coating adhesion improves the coating decoration protection, just need carry out surface treatment to zinc or zinc aluminum alloy coating, main chemical treatment method is exactly a bonderizing at present.Phosphatization liquid such as phosphating liquor of iron series, Zinc phosphating solution or the manganese phosphating liquor that uses all is difficult to obtain good effect now, causes coating adhesion poor easily, lacks corrosion resistance, can not guarantee the life-time service of material.
Chinese patent CN1076225, CN1077757, CN1231705, CN1259451 etc. are iron and steel phosphatization liquid, and Chinese patent CN1205356 to how carrying out the phosphorization treatment process that contains the aluminium zinc coating inquires into, but effective phosphide liquid product is not provided.
Summary of the invention
The purpose of this invention is to provide and a kind of zinc or aluminium zinc are had good phosphatization effect, easy to use, squama liquid that technology is easy to regulate and control, the product of wherethrough reason back spraying, coating adhesion excellence, coating have good corrosion-resistant and endurance quality.
The present invention adopts following technical scheme to realize:
A kind of zinc or aluminium zinc phosphatization liquid, be made up of following raw materials by weight percent: zinc oxide 0.1-0.5%, nitric acid 0.2-0.5%, phosphoric acid 3-4%, nickelous nitrate 0.02-0.04%, Sodium Fluoride 0.02-0.2%, surplus is a water.
Above-mentioned zinc oxide purity is greater than 99%, and nitric acid is nitrosonitric acid,, phosphoric acid is concentration greater than 85% technical grade or food grade commodity, water is tap water or deionized water, used starting material are other chemical materials of commercially available technical grade (containing) higher level.
The preparation method is: add the water of requirement in reactor, add zinc oxide, nickelous nitrate, Sodium Fluoride then, add phosphoric acid, nitric acid while stirring, be stirred to the solids dissolving fully, filter, get product.
Product normal temperature of the present invention uses down, its free acidity 1-4 point, and total acidity 25-35 point, phosphating time 2-8 minute, phosphatize phosphate coat even compact, solid, strong with the coating bonding force, coating adhesion is more than 1 grade; Dissolve the excessive AL that in addition in the parkerizing process
3+Can be in time by F in the tank liquor
-Complexing is separated out, and guarantees parkerizedly normally to carry out.
The invention has the beneficial effects as follows: this product phosphatization is effective, and tooling cost is low, technology regulation and control easy to operate, and product easy to use, that wherethrough reason back sprays, the coating adhesion excellence has good corrosion-resistant and endurance quality.
Embodiment
Further illustrate the solution of the present invention and effect below in conjunction with embodiment.
Embodiment 1
A kind of zinc coating is made by following raw materials by weight percent with phosphatization liquid (coating contains aluminium less than 0.1%)
Zinc oxide 0.3%
Nitric acid 0.4%
Phosphatase 24 %
Nickelous nitrate 0.03%
Sodium Fluoride 0.02%
Water surplus.
Embodiment 2
A kind of zinc aluminum alloy coating is made by following raw materials by weight percent with phosphatization liquid (coating contains aluminium 2-4%)
Zinc oxide 0.2%
Nitric acid 0.3%
Phosphoric acid 3.5%
Nickelous nitrate 0.02%
Sodium Fluoride 0.08%
Water surplus.
Embodiment 3
A kind of zinc aluminum alloy coating is made by following raw materials by weight percent with phosphatization liquid (coating contains aluminium 10-15%)
Zinc oxide 0.2%
Nitric acid 0.2%
Phosphoric acid 3%
Nickelous nitrate 0.02%
Claims (5)
1. zinc or aluminium zinc phosphatization liquid, it is characterized in that it is made up of following raw materials by weight percent: zinc oxide 0.1-0.5%, nitric acid 0.2-0.5%, phosphoric acid 3-4%, nickelous nitrate 0.02-0.04%, Sodium Fluoride 0.02-0.2%, surplus is a water.
2. a kind of zinc according to claim 1 or aluminium zinc phosphatization liquid is characterized in that zinc oxide purity is greater than 99%.
3. a kind of zinc according to claim 1 or aluminium zinc phosphatization liquid is characterized in that nitric acid is nitrosonitric acid.
4. a kind of zinc according to claim 1 or aluminium zinc phosphatization liquid is characterized in that phosphoric acid is concentration greater than 85% technical grade or food grade commodity.
5. a kind of zinc according to claim 1 or aluminium zinc phosphatization liquid is characterized in that water is tap water or deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100212804A CN101289742B (en) | 2007-04-17 | 2007-04-17 | Phosphorization liquid for zinc or zinc-aluminium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100212804A CN101289742B (en) | 2007-04-17 | 2007-04-17 | Phosphorization liquid for zinc or zinc-aluminium alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101289742A CN101289742A (en) | 2008-10-22 |
| CN101289742B true CN101289742B (en) | 2011-01-12 |
Family
ID=40034184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100212804A Expired - Fee Related CN101289742B (en) | 2007-04-17 | 2007-04-17 | Phosphorization liquid for zinc or zinc-aluminium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101289742B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892479A (en) * | 2010-07-15 | 2010-11-24 | 上海大学 | Aluminum alloy surface phosphating treatment solution and phosphating method |
| CN103849866A (en) * | 2014-02-14 | 2014-06-11 | 浙江工业大学 | Grey protective layer for surface of titanium-zinc plate and preparation method |
| CN106756938A (en) * | 2017-02-15 | 2017-05-31 | 李啸春 | Normal-temperature zinc series are without slag bonderite and production method |
-
2007
- 2007-04-17 CN CN2007100212804A patent/CN101289742B/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| S.Palraj et al..Effect of phosphate coatings on the performance of epoxy polyamide red oxide primer on galvanized steel.《Progress in Organic Coatings》.2005,第54卷第5-9页. * |
| 唐春华等.锌材表面涂装前处理工艺.《电镀与环保》.2006,第26卷(第4期),第28-30页. * |
| 王春明.金属磷化处理（二）.《电镀与环保》.2000,第20卷(第6期),第23-28页. * |
| 王绍明.镀锌钢板磷化液的研制.《电镀与精饰》.2005,第27卷(第6期),第10-12页. * |
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| Publication number | Publication date |
|---|---|
| CN101289742A (en) | 2008-10-22 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guizhou Kesheng Color Spray Coating Co., Ltd. Assignor: Zhengling Co., Ltd., Xuzhou Coating and Decoration Contract record no.: 2012520000004 Denomination of invention: Phosphorization liquid for zinc or zinc-aluminium alloy Granted publication date: 20110112 License type: Exclusive License Open date: 20081022 Record date: 20120227 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20130417 |