CN102392239A - Normal temperature wiping phosphating solution and preparation method thereof - Google Patents
Normal temperature wiping phosphating solution and preparation method thereof Download PDFInfo
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- CN102392239A CN102392239A CN2011103717120A CN201110371712A CN102392239A CN 102392239 A CN102392239 A CN 102392239A CN 2011103717120 A CN2011103717120 A CN 2011103717120A CN 201110371712 A CN201110371712 A CN 201110371712A CN 102392239 A CN102392239 A CN 102392239A
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Abstract
The invention provides a normal temperature wiping phosphating solution which comprises the following components: 30 g/L-100 g/L of phosphoric acid, 0 g/L-100 g/L of dihydrogen phosphates, 1 g/L-10 g/L of organic acid complexing agents, 0 g/L-10 g/L of oxalic acid, 1 g/L-8 g/L of titanium oxysulfates, 5 g/L-50 g/L of metallic oxides, 0.5 g/L-6 g/L of nickel fluoride, 0.1 g/L-5 g/L of metal ion modifiers, 0 g/L-10 g/L of surfactants, and 5 g/L-15 g/L of m-nitro compounds. When the phosphating solution is used to daub, no water washing is required; the phosphating solution has good stability, short film forming time, and good oil removing effect; the rust conversion capability is strong; the phosphating film has good adhesion, strong corrosion resistance, and no moisture absorption, is thin, and has excellent extensibility and bonding force to metal substrates; phosphatization is performed at normal temperature, which saves tank liquor heating time and energy; the sediment is less; the application scope is wide.
Description
Technical field
The present invention relates to the steel surface process field, be specifically related to a kind of normal temperature wiping phosphatization liquid and preparation method thereof.
Background technology
Phosphatization liquid is mainly used in the processing pre-treatment of plating, paint or workpiece and seals processing up for safekeeping; Bottom as coating; Strengthen bonding force between application rete (like paint coatings) and workpiece; Improve the solidity to corrosion of surface coating after the application, the lubricant film when also can be used as metal cold working, metal surface protection layer and as the insulation processing of dynamo sheet, the release treatment of die casting etc. are widely used in the industrial production such as automobile, boats and ships, aerospace, machinofacture and household electrical appliances.
The coating process of most of phosphide liquid products is loaded down with trivial details in the market, and being coated with also needs the water flushing behind the phosphatization liquid, produces outwards discharging behind the sewage, causes environmental pollution, and exempts to wash after the application of phosphatization liquid workpiece to the poor adhesive force of coating and paint.
Summary of the invention
The problem that the present invention solves is to provide a kind of normal temperature wiping phosphatization liquid, after application on the workpiece, does not need the water flushing, and the phosphatize phosphate coat of generation is nonhygroscopic, and is good to the sticking power of powder coating and paint.The present invention also provide a kind of normal temperature wiping phosphatization liquid the preparation method.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of normal temperature wiping phosphatization liquid comprises the composition of following concentration:
Phosphoric acid 30g/L～100g/L, dihydrogen phosphate 0g/L～100g/L, organic acid complexing agent 1g/L～10g/L; Oxalic acid 0g/L～10g/L, sulphur acyloxy titanium 1g/L～8g/L, MOX 5g/L～50g/L; Nickelous fluoride 0.5g/L～6g/L; Metal ion-modified dose of 0.1g/L～5g/L, tensio-active agent 0g/L～10g/L, nitro-compound 5g/L～15g/L.
As preferably, said normal temperature wiping phosphatization liquid comprises the composition of following concentration:
Phosphoric acid 35g/L～80g/L, dihydrogen phosphate 5g/L～50g/L, organic acid complexing agent 2g/L～8g/L; Oxalic acid 1g/L～8g/L, sulphur acyloxy titanium 1g/L～5g/L, MOX 10g/L～40g/L; Nickelous fluoride 1g/L～4g/L; Metal ion-modified dose of 0.5g/L～2g/L, tensio-active agent 0g/L～8g/L, nitro-compound 6g/L～12g/L.
As preferably, said normal temperature wiping phosphatization liquid comprises the composition of following concentration:
Phosphoric acid 35g/L～50g/L, dihydrogen phosphate 10g/L～30g/L, organic acid complexing agent 3g/L～5g/L; Oxalic acid 2g/L～5g/L, sulphur acyloxy titanium 1g/L～3g/L, MOX 10g/L～25g/L; Nickelous fluoride 1g/L～2.5g/L; Metal ion-modified dose of 0.1g/L～5g/L, tensio-active agent 2g/L～5g/L, nitro-compound 6g/L～10g/L.
As preferably, said dihydrogen phosphate is Zn (H
2PO
4)
2And/or Ca (H
2PO
4)
2
As preferably, said organic acid complexing agent is tartrate and/or Hydrocerol A.
As preferably, said MOX is ZnO and/or CaO.
As preferably, said metal ion-modified dose is the salt of Cu and/or Ni.
As preferably, said metal ion-modified dose is copper sulfate and/or nickelous nitrate.
As preferably, said tensio-active agent is OP emulsifying agent and/or 6501 washing composition.
A kind of preparation method of normal temperature wiping phosphatization liquid, above-described composition adds mixed dissolution in the entry successively.
When using normal temperature wiping phosphatization liquid provided by the invention that workpiece is handled; Needn't immerse workpiece in the treatment solution, only need to dip in treatment solution and carry out wiping, not need specific equipment at workpiece surface with rag or cotton; Also can be according to the size of processed workpiece; Workpiece is soaked, sprays, need not wash after smearing, easy to operate and quality meets the requirements fully; Phosphatization liquid good stability, film formation time is short, deoiling effect good; The iron rust conversion capability is strong; The phosphatize phosphate coat that forms is good to the sticking power of powder coating and paint, and solidity to corrosion is strong, nonhygroscopic, and phosphatize phosphate coat is thinner; Have good extensibility and with the bonding force of metallic matrix, be particularly suitable for the processing of the workpiece of the certain deformation processing of the forward and backward needs of application; Phosphatization can be practiced thrift tank liquor heat-up time and energy cost at normal temperatures; Sediment is few, is not easy plug nozzle and pipeline, and equipment is cleared up easily, and environmental pollution is little; Have wide range of applications; Various steel products; The industry with civilian that comprises industry can be used, as: component such as all kinds of automobiles, motorcycle, various machinery, machine building, household electrical appliance, instrument, big hardware etc.; Be particularly suitable for some outdoor large members and some local mechanical means that needs processing, also can be as the antirust processing of inter process.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, describe just to further specifying feature and advantage of the present invention but should be appreciated that these, rather than to the restriction of claim of the present invention.
Phosphating reaction is that the metallic surface contacts with dilute phosphoric acid or superphosphate; Chemical reaction takes place, and generate the process of stable insoluble phosphate protective membrane in the metallic surface, the protective membrane of formation is a phosphatize phosphate coat; Phosphatize phosphate coat can increase film adhesive, improves corrosion resistance coating.
The present invention provides a kind of normal temperature wiping phosphatization liquid, comprises the composition of following concentration: phosphoric acid 30g/L～100g/L, dihydrogen phosphate 0g/L～100g/L; Organic acid complexing agent 1g/L～10g/L, oxalic acid 0g/L～10g/L, sulphur acyloxy titanium 1g/L～8g/L; MOX 5g/L～50g/L, nickelous fluoride 0.5g/L～6g/L, metal ion-modified dose of 0.1g/L～5g/L; Tensio-active agent 0g/L～10g/L, nitro-compound 5g/L～15g/L.
The concentration of each composition is preferably: phosphoric acid 35g/L～80g/L, dihydrogen phosphate 5g/L～50g/L, organic acid complexing agent 2g/L～8g/L; Oxalic acid 1g/L～8g/L, sulphur acyloxy titanium 1g/L～5g/L, MOX 10g/L～40g/L; Nickelous fluoride 1g/L～4g/L; Metal ion-modified dose of 0.5g/L～2g/L, tensio-active agent 0g/L～8g/L, nitro-compound 6g/L～12g/L.
More preferably: phosphoric acid 35g/L～50g/L, dihydrogen phosphate 10g/L～30g/L, organic acid complexing agent 3g/L～5g/L; Oxalic acid 2g/L～5g/L, sulphur acyloxy titanium 1g/L～3g/L, MOX 10g/L～25g/L; Nickelous fluoride 1g/L～2.5g/L; Metal ion-modified dose of 0.1g/L～5g/L, tensio-active agent 2g/L～5g/L, nitro-compound 6g/L～10g/L.
Phosphoric acid and dihydrogen phosphate are the staple of phosphatization liquid, and the total acidity of phosphatization liquid is too high, and then phosphatize phosphate coat is coarse, and the phosphatization sediment weight increases; Total acidity is low excessively, and then phosphatization speed is slow, is difficult to form high-quality phosphatize phosphate coat, can guarantee that according to amount provided by the invention the normal formation of phosphatize phosphate coat does not produce excessive sediment.Dihydrogen phosphate can be Zn (H
2PO
4)
2And/or Ca (H
2PO
4)
2
The organic acid complexing agent is tartrate and/or Hydrocerol A, can improve the structure of phosphatize phosphate coat, improves the phosphatization effect.
Oxalic acid plays the effect of surface adjustment, can improve phosphatization speed and refinement phosphatization crystal grain, forms fine and closely woven phosphatize phosphate coat, can also eliminate rust.
Sulphur acyloxy titanium is adjusted for table, also plays the effect of surface adjustment.Through the iron and steel of strong acid or highly basic processing, to handle with phosphatization liquid again, the phosphatize phosphate coat crystallization of generation is thick, uses sulphur acyloxy titanium can accelerate phosphorization filming speed, reduces the phosphatization sediment, and the phosphatize phosphate coat crystallization is fine and smooth, even, and anti-corrosion capability strengthens.
MOX is ZnO and/or CaO, to phosphatization liquid metals ion is provided, and phosphoric acid, dihydrogen phosphate and metals ion are formed filmogen, under concentration of the present invention, can make the metallic surface obtain the phosphatize phosphate coat that crystallization is fine and closely woven, rete is complete.
Nickelous fluoride can be accelerated the formation speed of phosphatization nucleus, phosphatize phosphate coat compact crystallization, solidity to corrosion are increased, but content can not be too much, otherwise workpiece surface is prone to the floating ash of white.
Metal ion-modified dose is the salt of Cu and/or Ni, can be copper sulfate and/or nickelous nitrate, adds the formation and the grain refining that help nucleus in the phosphatization liquid, can quicken the process of normal temperature phosphating.A spot of cupric ion can increase substantially phosphatization speed; Nickel ion can not only quicken phosphatization, crystallization of refinement, and can improve the corrosion resistance nature of film.
Tensio-active agent can be OP emulsifying agent and/or 6501 washing composition; The adherent greasy dirt in metallic surface is had the effect of emulsification solubilising, and can prevent the dirt redeposition, help contacting of phosphatization liquid and metallic surface; Reduce surface tension of liquid, help the effusion of hydrogen in the phosphating reaction.
Between nitro-compound be promotor, with metals ion improving agent synergy, quicken the velocity of discharge of hydrogen ion at negative electrode, impel the acid etching of phosphatization fs to speed up, parkerizing process is played booster action.
The present invention will more than several kinds of compositions add successively after according to the concentration weighing that provides and mix in the entry, under agitation until whole dissolvings, then make phosphatization liquid.
During use; With 5 times of volume ratios or 4 times of these phosphatization liquid of mass ratio dilution; Normal temperature (0-40 ℃) down with soak, the method for spray or wiping handle workpiece all can, wait for 3-40 minute after the application of phosphatization liquid, the residual solution of workpiece surface dries naturally and promptly forms phosphatize phosphate coat.
Embodiment 1
Under the normal temperature, above composition is joined in the 1000 gram water successively,, process phosphatization liquid under agitation up to whole dissolvings.
With 5 times of volume ratio dilutions, 20 ℃ are adopted the wiping mode workpiece to be handled 30 minutes engineering times down.
Embodiment 2:
Under the normal temperature, above composition is joined in the 1000 gram water successively,, process phosphatization liquid under agitation up to whole dissolvings.
With 4 times of mass ratio dilutions, 35 ℃ are adopted the wiping mode workpiece to be handled 10 minutes engineering times down.
Embodiment 3:
Under the normal temperature, above composition is joined in the 1000 gram water successively,, process phosphatization liquid under agitation up to whole dissolvings.
With 4 times of mass ratio dilutions, 25 ℃ are adopted the spray mode workpiece to be handled 20 minutes engineering times down.
Instance 4:
Under the normal temperature, above composition is joined in the 1000 gram water successively,, process phosphatization liquid under agitation up to whole dissolvings.
With 5 times of volume ratio dilutions, 15 ℃ are adopted immersion way workpiece to be handled 25 minutes engineering times down.
Embodiment 5:
Under the normal temperature, above composition is joined in the 1000 gram water successively,, process phosphatization liquid under agitation up to whole dissolvings.
With 4 times of mass ratio dilutions, 20 ℃ are adopted the wiping mode workpiece to be handled 15 minutes engineering times down.
With the phosphatization liquid of embodiment 1-5 preparation workpiece is handled the back and form phosphatize phosphate coat, need not the water flushing, the outward appearance and the sticking power of phosphatize phosphate coat are seen table 1:
The character of the phosphatize phosphate coat of each embodiment preparation of table 1
| Experiment | The film outward appearance | Sticking power |
| Instance 1 | Grey or colour film are complete rustless | 0 grade |
| Instance 2 | Grey or colour film are complete rustless | 0 grade |
| Instance 3 | Grey or colour film are complete rustless | 0 grade |
| Instance 4 | Grey or colour film are complete rustless | 0 grade |
| Instance 5 | Grey or colour film are complete rustless | 0 grade |
Can be found out that by the result handle workpiece with the phosphatization liquid of the present invention's preparation, the phosphatize phosphate coat of formation is complete, even, rustless, and nonhygroscopic, good to the sticking power of coating and paint, quality meets the requirements.
More than a kind of normal temperature wiping phosphatization liquid provided by the present invention and preparation method thereof has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a normal temperature wiping phosphatization liquid is characterized in that, comprises the composition of following concentration:
Phosphoric acid 30g/L～100g/L, dihydrogen phosphate 0g/L～100g/L, organic acid complexing agent 1g/L～10g/L; Oxalic acid 0g/L～10g/L, sulphur acyloxy titanium 1g/L～8g/L, MOX 5g/L～50g/L; Nickelous fluoride 0.5g/L～6g/L; Metal ion-modified dose of 0.1g/L～5g/L, tensio-active agent 0g/L～10g/L, nitro-compound 5g/L～15g/L.
2. normal temperature wiping phosphatization liquid according to claim 1 is characterized in that, comprises the composition of following concentration:
Phosphoric acid 35g/L～80g/L, dihydrogen phosphate 5g/L～50g/L, organic acid complexing agent 2g/L～8g/L; Oxalic acid 1g/L～8g/L, sulphur acyloxy titanium 1g/L～5g/L, MOX 10g/L～40g/L; Nickelous fluoride 1g/L～4g/L; Metal ion-modified dose of 0.5g/L～2g/L, tensio-active agent 0g/L～8g/L, nitro-compound 6g/L～12g/L.
3. normal temperature wiping phosphatization liquid according to claim 1 is characterized in that, comprises the composition of following concentration:
Phosphoric acid 35g/L～50g/L, dihydrogen phosphate 10g/L～30g/L, organic acid complexing agent 3g/L～5g/L; Oxalic acid 2g/L～5g/L, sulphur acyloxy titanium 1g/L～3g/L, MOX 10g/L～25g/L; Nickelous fluoride 1g/L～2.5g/L; Metal ion-modified dose of 0.1g/L～5g/L, tensio-active agent 2g/L～5g/L, nitro-compound 6g/L～10g/L.
4. according to each described normal temperature wiping phosphatization liquid in the claim 1 to 3, it is characterized in that said dihydrogen phosphate is Zn (H
2PO
4)
2And/or Ca (H
2PO
4)
2
5. according to each described normal temperature wiping phosphatization liquid in the claim 1 to 3, it is characterized in that said organic acid complexing agent is tartrate and/or Hydrocerol A.
6. according to each described normal temperature wiping phosphatization liquid in the claim 1 to 3, it is characterized in that said MOX is ZnO and/or CaO.
7. according to each described normal temperature wiping phosphatization liquid in the claim 1 to 3, it is characterized in that said metal ion-modified dose is the salt of Cu and/or Ni.
8. according to each described normal temperature wiping phosphatization liquid in the claim 1 to 3, it is characterized in that said metal ion-modified dose is copper sulfate and/or nickelous nitrate.
9. according to each described normal temperature wiping phosphatization liquid in the claim 1 to 3, it is characterized in that said tensio-active agent is OP emulsifying agent and/or 6501 washing composition.
10. the preparation method of a normal temperature wiping phosphatization liquid is characterized in that, each described composition in the claim 1 to 9 is added mixed dissolution in the entry successively.
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| CN2011103717120A CN102392239A (en) | 2011-11-21 | 2011-11-21 | Normal temperature wiping phosphating solution and preparation method thereof |
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|---|---|---|---|
| CN2011103717120A CN102392239A (en) | 2011-11-21 | 2011-11-21 | Normal temperature wiping phosphating solution and preparation method thereof |
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| CN102392239A true CN102392239A (en) | 2012-03-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543826A (en) * | 2015-12-29 | 2016-05-04 | 钢铁研究总院 | Normal-temperature phosphating solution forming phosphating film highly resistant to corrosion, preparing method and phosphating technology |
| CN115838927A (en) * | 2022-12-01 | 2023-03-24 | 湖南金裕环保科技有限公司 | Oil-removing, rust-removing, passivating and phosphating four-in-one treatment fluid and preparation method thereof |
Citations (1)
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|---|---|---|---|---|
| CN101988194A (en) * | 2010-11-18 | 2011-03-23 | 平湖市供电局 | Site rust-removing and corrosion-preventing method for steel piece of electric power system |
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2011
- 2011-11-21 CN CN2011103717120A patent/CN102392239A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988194A (en) * | 2010-11-18 | 2011-03-23 | 平湖市供电局 | Site rust-removing and corrosion-preventing method for steel piece of electric power system |
Non-Patent Citations (1)
| Title |
|---|
| 陈红生，: "磷化处理技术", 《河北化工》, vol. 34, no. 10, 31 October 2011 (2011-10-31), pages 50 - 53 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105543826A (en) * | 2015-12-29 | 2016-05-04 | 钢铁研究总院 | Normal-temperature phosphating solution forming phosphating film highly resistant to corrosion, preparing method and phosphating technology |
| CN105543826B (en) * | 2015-12-29 | 2018-05-01 | 钢铁研究总院 | A kind of normal-temperature phosphorizing liquid, preparation method and phosphating process for forming high anti-corrosion phosphating coat |
| CN115838927A (en) * | 2022-12-01 | 2023-03-24 | 湖南金裕环保科技有限公司 | Oil-removing, rust-removing, passivating and phosphating four-in-one treatment fluid and preparation method thereof |
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Application publication date: 20120328 |