CN104928664A - Bare steel rust layer transforming agent for salt-contained environment - Google Patents
Bare steel rust layer transforming agent for salt-contained environment Download PDFInfo
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- CN104928664A CN104928664A CN201510248684.1A CN201510248684A CN104928664A CN 104928664 A CN104928664 A CN 104928664A CN 201510248684 A CN201510248684 A CN 201510248684A CN 104928664 A CN104928664 A CN 104928664A
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- transforming agent
- rust layer
- rusty scale
- rust
- steel
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Abstract
The invention provides a bare steel rust layer transforming agent for a salt-contained environment. The rust laser transforming agent comprises the following components in percentage by weight: 0.1-3% of titanyl sulfate, 0.5-5% of zinc dihydrogen phosphate, 0.1-3% of sodium pyrophosphate, 0.1-2% of tannic acid, 0.1-3% of copper sulfate, and the balance of water. The rust layer transforming agent has excellent rust liquid sagging prevention; after the rust layer transforming agent is sprayed on the surface of a weather-resistant steel bare sample with removed scales, the formation of a stable rust layer is accelerated; the rust layer is excellent in corrosion resistance; and the rust layer transforming agent is suitable for coating bare steels.
Description
Technical field
The invention belongs to metal protection technical field, specifically refer to a kind of naked steel rusty scale transforming agent for saline environment.
Background technology
Metallic corrosion is a kind of failure procedure of metal under the effect of environmental corrosion medium, and being a kind of completely spontaneous inevitable spontaneous phenomenon of carrying out, is the inverse process of metallurgical production.Atomospheric corrosion causes the major reason of the early failures such as product, unit, structural part and destruction.The financial loss caused because of atomospheric corrosion is every year very surprising.Under air physical environment, it is a step-by-step procedure that naked steel forms stable protection rusty scale, needs considerable time, more than at least 3 years, and the naked steel surface had forms the time of form compact and stable rusty scale more than more than 10 years.Stablize in the process of rusty scale in formation, usually occur early stage rust liquid sagging and disperse polluting the phenomenon of surrounding environment.And the process of the rusty scale surface of stability carries out chemical treatment to naked steel surface exactly, directly generate stable fine and close rusty scale, form self-protection.After coating rusty scale surface of stability treatment agent, naked steel both can be avoided to use the phenomenon of initial stage yellow rust liquid sagging, preventing pollution, and stable protective rust can have been formed rapidly on its surface again, the corrosion speed of naked steel is tended towards stability.
Summary of the invention
The object of the present invention is to provide a kind of naked steel rusty scale transforming agent for saline environment, effectively can solve saline environment naked steel rusty scale stabilization and rust liquid flowing down problems.
For achieving the above object, the naked steel rusty scale transforming agent for saline environment designed by the present invention, its special special character is, in this rusty scale transforming agent, the weight percent of each component is: titanyl sulfate weight ratio is 0.1 ~ 3%, primary zinc phosphate weight ratio is 0.5 ~ 5%, trisodium phosphate weight ratio is 0.1 ~ 3%, Weibull weight ratio be weight ratio is 0.1 ~ 2%, copper sulfate weight ratio is 0.1 ~ 3%, all the other are water.
Further preferably, in this rusty scale transforming agent, the weight percent of each component is: titanyl sulfate 1.1 ~ 2.1%, primary zinc phosphate 1.8 ~ 3.5%, trisodium phosphate 1.0 ~ 2.2%, Weibull 0.5 ~ 1.5%, copper sulfate 0.9 ~ 2.1%, all the other are water.
Again further, in this rusty scale transforming agent, the weight percent of each component is: titanyl sulfate 1.5%, primary zinc phosphate 2.5%, trisodium phosphate 1.4%, Weibull 1.0%, copper sulfate 1.6%, water 92%.
The naked steel rusty scale transforming agent mechanism of action for saline environment of the present invention is:
In rusty scale transforming agent, adding of titanyl sulfate makes titanium can produce the thin passivation layer of one deck at base steel internal surface, promotes to form fine and close, complete rusty scale, and this rusty scale is close to the internal layer of steel matrix, and tack is strong, can slow down saliferous corrosive medium and corrode steel plate inside further.And primary zinc phosphate can with FeO, the Fe in iron rust
2o
3, Fe
3o
4reaction, generates insoluble FePO
4, Zn
3(PO
4)
2, Zn
2fe (HPO
4)
2be deposited on steel substrate surface, form the film that densification, complete iron system and zinc system combine, solidity to corrosion is strong.Trisodium phosphate then promotes to generate insoluble iron system phosphatoptosis on steel substrate surface, forms fine and close, complete rusty scale, improves solidity to corrosion.As the film forming component in solution during Weibull coating, there is good passivation effect.Copper sulfate promotes the amorphous Fe of surface corrosion layer
3o
4generate mutually, copper plays the effect of activated cathode simultaneously, impels steel anode generation passivation, slowing down corrosion.
Utilize the naked steel rusty scale transforming agent for saline environment of the present invention not containing chromium and nitrite, also without intense stimulus smell, health environment-friendly; Have excellent rust protection liquid sagging performance, spray behind the naked sample surface of the weathering steel removing iron scale, promote the formation of stablizing rusty scale, rusty scale has excellent Corrosion Protection, is applicable to the coating of naked steel.
Embodiment
Below in conjunction with concrete embodiment, the naked steel rusty scale transforming agent for saline environment of the present invention is described in further detail.
Embodiment 1
For a naked steel rusty scale transforming agent for saline environment, its each compositions in weight percentage is that titanyl sulfate accounts for 0.1%, and primary zinc phosphate accounts for 5%, and trisodium phosphate accounts for 0.1%, and Weibull accounts for 2%, and copper sulfate accounts for 0.1%, and water accounts for 92.7%.
Embodiment 2
For a naked steel rusty scale transforming agent for saline environment, its each compositions in weight percentage is that titanyl sulfate accounts for 3%, and primary zinc phosphate accounts for 0.5%, and trisodium phosphate accounts for 3%, and Weibull accounts for 0.1%, and copper sulfate accounts for 3%, and water accounts for 90.4%.
Embodiment 3
For a naked steel rusty scale transforming agent for saline environment, its each compositions in weight percentage is that titanyl sulfate accounts for 1%, and primary zinc phosphate accounts for 1.5%, and trisodium phosphate accounts for 2.5%, and Weibull accounts for 0.5%, and copper sulfate accounts for 2%, and water accounts for 92.5%.
Embodiment 4
For a naked steel rusty scale transforming agent for saline environment, its each compositions in weight percentage is that titanyl sulfate accounts for 2%, and primary zinc phosphate accounts for 3%, and trisodium phosphate accounts for 1.5%, and Weibull accounts for 1%, and copper sulfate accounts for 1%, and water accounts for 91.5%.
Embodiment 5
For a naked steel rusty scale transforming agent for saline environment, its each compositions in weight percentage is that titanyl sulfate accounts for 0.5%, and primary zinc phosphate accounts for 4%, and trisodium phosphate accounts for 0.7%, and Weibull accounts for 1.5%, and copper sulfate accounts for 0.5%, and water accounts for 92.8%.
Embodiment 6
For a naked steel rusty scale transforming agent for saline environment, its each compositions in weight percentage is, titanyl sulfate 1.5%, primary zinc phosphate 2.5%, trisodium phosphate 1.4%, Weibull 1.0%, copper sulfate 1.6%, water 92%.
During use, raw material is hybridly prepared into rusty scale transforming agent by ratio uniform described in the various embodiments described above.By rusty scale transforming agent spray at the naked sample of weathering steel on the surface, after seasoning, repeat spray.
Simultaneous test: adopt with a collection of naked sample of weathering steel removing iron scale, accelerates 15 days (every 3 hours sprays NaCl) and carries out test experiments under the NaCl environment that weight percent concentration is 1%.Wherein comparative example steel sample does not spray rusty scale transforming agent.
Experimental result is as shown in table 1.
Table 1:
Table 1 data can be found out, the naked sample of weathering steel of coating the present embodiment rusty scale transforming agent is during accelerated corrosion, and erosion rate is 25 ~ 40% of the naked sample of not surface treated weather-proof time steel, and preservative effect is obvious.Meanwhile, adopt not surface treated weathering steel naked sample Surface Rust uneven color and rust liquid sagging, erosion rate increases in time and increases; Apply the weathering steel naked sample Surface Rust color even of rusty scale transforming agent of the present invention, rust liquid not sagging, erosion rate change is little.
Claims (3)
1. for a naked steel rusty scale transforming agent for saline environment, it is characterized in that: in this rusty scale transforming agent, the weight percent of each component is: titanyl sulfate 0.1 ~ 3%, primary zinc phosphate 0.5 ~ 5%, trisodium phosphate 0.1 ~ 3%, Weibull 0.1 ~ 2%, copper sulfate 0.1 ~ 3%, all the other are for water.
2. the naked steel rusty scale transforming agent for saline environment according to claim 1, is characterized in that: in this rusty scale transforming agent, the weight percent of each component is: titanyl sulfate 1.1 ~ 2.1%, primary zinc phosphate 1.8 ~ 3.5%, trisodium phosphate 1.0 ~ 2.2%, Weibull 0.5 ~ 1.5%, copper sulfate 0.9 ~ 2.1%, all the other are water.
3. the naked steel rusty scale transforming agent for saline environment according to claim 1, is characterized in that: in this rusty scale transforming agent, the weight percent of each component is: titanyl sulfate 1.5%, primary zinc phosphate 2.5%, trisodium phosphate 1.4%, Weibull 1.0%, copper sulfate 1.6%, water 92%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248684.1A CN104928664A (en) | 2015-05-15 | 2015-05-15 | Bare steel rust layer transforming agent for salt-contained environment |
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| CN201510248684.1A CN104928664A (en) | 2015-05-15 | 2015-05-15 | Bare steel rust layer transforming agent for salt-contained environment |
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| CN104928664A true CN104928664A (en) | 2015-09-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779987A (en) * | 2016-04-28 | 2016-07-20 | 武汉钢铁股份有限公司 | Phosphorus-free sulfur-free rust layer stable treatment agent coating surface of bare steel and preparing method of agent |
| CN105908166A (en) * | 2016-04-28 | 2016-08-31 | 武汉钢铁股份有限公司 | Sand abrasion resisting agent coating surface of bare steel and preparation method of sand abrasion resisting agent |
| CN105908173A (en) * | 2016-04-28 | 2016-08-31 | 武汉钢铁股份有限公司 | High temperature corrosion and high humidity corrosion resisting agent coating surface of bare steel, and preparation method of high temperature corrosion and high humidity corrosion resisting agent |
| CN116285573A (en) * | 2023-02-27 | 2023-06-23 | 山东建筑大学 | Aqueous epoxy zinc-rich anticorrosive paint capable of being coated with rust and preparation method thereof |
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| CN102373453A (en) * | 2010-08-05 | 2012-03-14 | 攀钢集团钢铁钒钛股份有限公司 | Chromium-free passivation solution and hot-dip galvanized metal material |
| CN103556143A (en) * | 2013-11-11 | 2014-02-05 | 北京科技大学 | Hydrojet treatment method for promoting steel with oxide skin to generate stable rust layer |
| CN104195579A (en) * | 2014-07-01 | 2014-12-10 | 国家电网公司 | Surface-tolerant rust treatment fluid |
| CN105220138A (en) * | 2014-06-09 | 2016-01-06 | 鞍钢股份有限公司 | The agent of a kind of Surface Rust of Weathering Steel stabilization treatment |
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2015
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| CN102373453A (en) * | 2010-08-05 | 2012-03-14 | 攀钢集团钢铁钒钛股份有限公司 | Chromium-free passivation solution and hot-dip galvanized metal material |
| CN101982564A (en) * | 2010-09-25 | 2011-03-02 | 王志刚 | Rust-removing and anti-rusting agent for iron and steel |
| CN103556143A (en) * | 2013-11-11 | 2014-02-05 | 北京科技大学 | Hydrojet treatment method for promoting steel with oxide skin to generate stable rust layer |
| CN105220138A (en) * | 2014-06-09 | 2016-01-06 | 鞍钢股份有限公司 | The agent of a kind of Surface Rust of Weathering Steel stabilization treatment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105779987A (en) * | 2016-04-28 | 2016-07-20 | 武汉钢铁股份有限公司 | Phosphorus-free sulfur-free rust layer stable treatment agent coating surface of bare steel and preparing method of agent |
| CN105908166A (en) * | 2016-04-28 | 2016-08-31 | 武汉钢铁股份有限公司 | Sand abrasion resisting agent coating surface of bare steel and preparation method of sand abrasion resisting agent |
| CN105908173A (en) * | 2016-04-28 | 2016-08-31 | 武汉钢铁股份有限公司 | High temperature corrosion and high humidity corrosion resisting agent coating surface of bare steel, and preparation method of high temperature corrosion and high humidity corrosion resisting agent |
| CN116285573A (en) * | 2023-02-27 | 2023-06-23 | 山东建筑大学 | Aqueous epoxy zinc-rich anticorrosive paint capable of being coated with rust and preparation method thereof |
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Effective date of registration: 20170802 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Applicant after: Wuhan iron and Steel Company Limited Address before: 430080 Hubei, Wuhan, Wuchang Friendship Road, No. 999, block A, floor 15 Applicant before: Wuhan Iron & Steel (Group) Corp. |
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