CN101215703A - Stainless steel whitening and hole sealing liquid, and stainless steel treatment technique using the same - Google Patents
Stainless steel whitening and hole sealing liquid, and stainless steel treatment technique using the same Download PDFInfo
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- CN101215703A CN101215703A CNA2007100195156A CN200710019515A CN101215703A CN 101215703 A CN101215703 A CN 101215703A CN A2007100195156 A CNA2007100195156 A CN A2007100195156A CN 200710019515 A CN200710019515 A CN 200710019515A CN 101215703 A CN101215703 A CN 101215703A
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- stainless steel
- whitening
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- Chemical Treatment Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to stainless steel whitening and hole sealing liquid, wherein the stainless steel whitening liquid comprises nitric acid 4-10% (mass percent), and per liter stainless steel whitening liquid comprises phosphoric acid 10-40g, boric acid 2-5g, ammonia sulfate 10-30g, trisodium phosphate 10-30g and ammonium acid fluoride 10-35g, and the stainless steel hole sealing liquid is CM-02 acrylic resin 0.5-5 % (mass percent). The application of the stainless steel whitening washing and hole sealing liquid comprises following steps: immersing stainless steel which is washed by chemical cleaning in stainless steel whitening liquid for 10-35 minutes under the temperature of 55-85 DEG C, washing in water and airing, then immersing in stainless steel hole sealing liquid for 2-30 seconds in normal temperature, finally taking out the stainless steel and baking. The invention reduces the applied concentration of nitric acid in the process of whitening technology, and has little harm on the environment, furthermore, a layer of good fingerprint-resistant organic protecting film is formed on the surface of the stainless steel in the hole sealing technology, and the invention has obvious sand grain appearance effect.
Description
[technical field]
The invention belongs to the stainless steel metal field of surface treatment, on stainless steel, produce protective film thus with silvery white smalt face outward appearance and the splendid erosion resistance of tool and anti-fingerprint.
[background technology]
Present stainless pre-treatment may further comprise the steps: degreasing → matting → whiten → wash → air-dry → baking, wherein whitening technique adopts high density (about 40-60%) nitric acid more, the danger coefficient height, big to human body and environmental hazard, and the base material after whitening mostly is canescence and usually bad with delustring; Again, stainless steel usually can be because of the destroyed solidity to corrosion of its passivation layer descends after whitening, and touches with hand and to be easy to leave a trace on the surface of base material.
Therefore, be necessary to propose the preferable stainless steel whitening liquid that whitens effect of a kind of tool in fact, neither influence the less again contaminate environment of erosion resistance of base material.
[summary of the invention]
Therefore, the object of the present invention is to provide a kind of stainless steel whitening, pore-sealing liquid, the preferable erosion resistance that whitens effect and do not influence base material of tool, less again contaminate environment.
Another object of the present invention is to provide the stainless steel process technique of using above-mentioned stainless steel whitening, pore-sealing liquid, the preferable effect that whitens of tool thus, and form the protective film of splendid erosion resistance of tool and anti-fingerprint at stainless steel surface.
For reaching above-mentioned purpose, this stainless steel whitening liquid of the present invention comprises 4%-10% (mass percent) nitric acid, and every liter of this stainless steel whitening liquid comprises:
Phosphatase 11 0-40g
Boric acid 2-5g
Ammonium sulfate 10-30g
Tertiary sodium phosphate 10-30g
Ammonium bifluoride 10-35g
This stainless steel pore-sealing liquid is 0.5-5% (mass percent) CM-02 acrylic resin.
Use the step of this stainless steel whitening, pore-sealing liquid as follows:
Stainless steel after the matting is being comprised 4-10% (mass percent) nitric acid, and concentration is respectively 10-40g/L phosphoric acid, 2-5g/L boric acid, 10-30g/L ammonium sulfate, soaked 10-35 minute in this stainless steel whitening liquid of 10-30g/L tertiary sodium phosphate and 10-35g/L ammonium bifluoride, working temperature 55-85 ℃, this stainless steel is silvery white in color and has sand face effect after the taking-up, then through washing and air-dry, be dipped in 2-30 second in 0.5-5% (mass percent) the CM-02 acrylic resin under the normal temperature again, take out baking at last, then form protective filmy layer at stainless steel surface.
Compared to prior art, the present invention reduces the concentration of nitric acid that uses in the whitening technique, harm to environment and human body is little, and follow-up hole-sealing technology forms the silvery white top layer that one deck has sand face effect concurrently on stainless surface, and make the anti-fingerprint of sample behind sealing of hole, Corrosion Protection greatly improves.
[embodiment]
Preferably, this stainless steel whitening liquid comprises 4%-10% (mass percent) nitric acid, and every liter of this stainless steel whitening liquid comprises:
Phosphatase 11 0-40g
Boric acid 2-5g
Ammonium sulfate 10-30g
Tertiary sodium phosphate 10-30g
Ammonium bifluoride 10-35g
This stainless steel pore-sealing liquid is 0.5-5% (mass percent) CM-02 acrylic resin.
The stainless steel process technique of using this stainless steel whitening, pore-sealing liquid may further comprise the steps: degreasing → matting → whiten → wash → air-dry → sealing of hole → baking.
Use two preferred embodiments of this stainless steel whitening, pore-sealing liquid as follows:
Embodiment 1:
Stainless steel after the matting is being comprised 4% (mass percent) nitric acid, and concentration is respectively in this stainless steel pore-sealing liquid of 10g/L phosphoric acid, 2g/L boric acid, 10g/L ammonium sulfate, 10g/L tertiary sodium phosphate and 10g/L ammonium bifluoride soaked 10 minutes, 55 ℃ of working temperatures, this stainless steel is silvery white in color after the taking-up, then through washing and air-dry, be dipped in again in 0.5% under the normal temperature (mass percent) the CM-02 acrylic resin 2 seconds, take out baking at last, then form protective filmy layer at stainless steel surface.
Embodiment 2:
Stainless steel after the matting is being comprised 10% (mass percent) nitric acid, and concentration is respectively in this stainless steel pore-sealing liquid of 40g/L phosphoric acid, 5g/L boric acid, 30g/L ammonium sulfate, 30g/L tertiary sodium phosphate and 35g/L ammonium bifluoride soaked 35 minutes, 85 ℃ of working temperatures, this stainless steel is silvery white in color after the taking-up, then through washing and air-dry, be dipped in again in 5% under the normal temperature (mass percent) the CM-02 acrylic resin 30 seconds, take out baking at last, then form protective filmy layer at stainless steel surface.
More than, the thickness of protective film is relevant with concentration, the soak time of CM-02 acrylic resin.
Claims (5)
1. a stainless steel whitening, pore-sealing liquid, it is characterized in that: this stainless steel whitening liquid comprises the nitric acid of mass percent 4%-10%, and every liter of this stainless steel whitening liquid comprises:
Phosphatase 11 0-40g
Boric acid 2-5g
Ammonium sulfate 10-30g
Tertiary sodium phosphate 10-30g
Ammonium bifluoride 10-35g
And the CM-02 acrylic resin that this stainless steel pore-sealing liquid is mass percent 0.5-5%.
2. stainless steel whitening as claimed in claim 1, pore-sealing liquid is characterized in that: the working temperature of this stainless steel whitening liquid is 55-85 ℃.
3. stainless steel whitening as claimed in claim 1, pore-sealing liquid is characterized in that: the working hour of this stainless steel whitening liquid is 10-35 minute.
4. stainless steel whitening as claimed in claim 1, pore-sealing liquid is characterized in that: the working hour of this stainless steel pore-sealing liquid is 2-30 second.
5. the stainless steel process technique of using stainless steel whitening as claimed in claim 1, pore-sealing liquid may further comprise the steps: degreasing → matting → whiten → wash → air-dry → baking is characterized in that: also comprise a sealing of hole step between this air-dry step and this baking procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100195156A CN101215703B (en) | 2007-01-06 | 2007-01-06 | Stainless steel treatment technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100195156A CN101215703B (en) | 2007-01-06 | 2007-01-06 | Stainless steel treatment technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101215703A true CN101215703A (en) | 2008-07-09 |
| CN101215703B CN101215703B (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100195156A Expired - Fee Related CN101215703B (en) | 2007-01-06 | 2007-01-06 | Stainless steel treatment technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN101215703B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876792B (en) * | 2009-09-28 | 2012-01-18 | 上海强邦印刷器材有限公司 | Normal-temperature hole sealing technology of CTP base |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3228816A (en) * | 1962-02-21 | 1966-01-11 | Rohr Corp | Process and composition for cleaning and polishing aluminum and its alloys |
| US3817844A (en) * | 1968-10-04 | 1974-06-18 | Rohr Corp | Method of electrolitic descaling activating and brightening and plating titanium and its alloys |
| CN100343420C (en) * | 2004-07-21 | 2007-10-17 | 常耀辉 | Fast chemical grinding polishing bath liquid for stainless steel surface and its method |
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2007
- 2007-01-06 CN CN2007100195156A patent/CN101215703B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876792B (en) * | 2009-09-28 | 2012-01-18 | 上海强邦印刷器材有限公司 | Normal-temperature hole sealing technology of CTP base |
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| Publication number | Publication date |
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| CN101215703B (en) | 2011-09-21 |
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Granted publication date: 20110921 Termination date: 20140106 |