CN1429281A - Anticorrosive agent for stainless steel and method of anticorrosive treatment of stainless steel - Google Patents
Anticorrosive agent for stainless steel and method of anticorrosive treatment of stainless steel Download PDFInfo
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- CN1429281A CN1429281A CN01809442A CN01809442A CN1429281A CN 1429281 A CN1429281 A CN 1429281A CN 01809442 A CN01809442 A CN 01809442A CN 01809442 A CN01809442 A CN 01809442A CN 1429281 A CN1429281 A CN 1429281A
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- stainless steel
- weight
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- treating agent
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Classifications
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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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
-
- 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
- C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/50—Treatment of iron or alloys based thereon
-
- 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
- C23C22/73—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 characterised by the process
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
A surface of an article of stainless steel becomes to have increased corrosion resistance by treatment with a heated aqueous hydroxylamine salt solution. The method can be employed for significantly improving the corrosion resistance of stainless steel under a severe circumstance.
Description
Technical field
The invention relates to the stainless steel surface antiseptic treating agent, and the method for anticorrosion treatment of using these sanitass, particularly about helping improving the antiseptic treating agent and the method for anticorrosion treatment of the erosion resistance of stainless steel surface under rigorous environment.
According in the past technology as can be known, in order to suppress or prevent the corrosion of metallic surface, available various corrosion inhibitors such as inorganic and organic and antiseptic treating agent carry out the anticorrosion covering or the anti-corrosive treatment of metallic surface.
In the middle of metal, have good erosion resistance though known the high stainless steel of chromium content, even such stainless steel, if under strong acid or alkaline condition, even perhaps place as if long-time at weak acid or weak base, the surface also will little by little be corroded.The corrosion of stainless steel like this, not only will become the reason that causes material damage, simultaneously when stainless material as the reaction vessel of chemical reaction or when preserving container etc. also will become material in the contaminating impurity container owing to corrode the material that generates.
Hydroxylammonium salt (NH
2OH A, A are sulfuric acid, phosphoric acid, acid such as hydrochloric acid), such as can the reaction in the aqueous solution, after generating the azanol sodium disulfonate aqueous solution by sodium bisulfite and Sodium Nitrite, adding water decomposition can make, and it is at still all stable compound in the aqueous solution of solid state.Up to the present hydroxylammonium salt generally is used as the chemical reaction raw material, in addition, when the processing of chemically very unsettled azanol at pharmaceutical chemicals and electronic material, in cleaning is arranged the time spent, and as required, hydroxylammonium salt also is used as the modulation free hydroxylamine.
As antiseptic methods such as iron, the metallic surface is known by the phosphatizing method of handling with acid aqueous phosphatic.Such as, No. the 4149909th, United States Patent (USP), in the specification sheets of No. 4865653 and No. 5597465; In the communique of European patent 0695817A1 number and 0315059A1 number; And in the communique of international monopoly WO93/03198 number and WO93/20259 number, all narrated metals such as iron and zinc are immersed in the aqueous solution of zinc phosphate and tertiary iron phosphate, form phosphate coating and prevent corroding method on their surface.According to record, when doing this processing, the hydroxylammonium salt such as oxammonium sulfate that add in aqueous phosphatic to promote the forming purpose of phosphate coating have only the amount of several weight % at most.
The present invention provides can improve the useful antiseptic treating agent of stainless erosion resistance and the method for anticorrosion treatment that uses these sanitass under rigorous environment.
Summary of the invention
Even the present inventor also can make stainless steel surface that the corrosive antiseptic treating agent does not take place for long-time placement in severe rugged environments such as bronsted lowry acids and bases bronsted lowry and method for anticorrosion treatment is studied repeatedly, found that, with the aqueous solution of hydroxylammonium salt as antiseptic treating agent, if under this aqueous solution and stainless steel surface state of contact, heat, discovery can obtain having the stainless steel surface of high erosion resistance, thereby has finished the present invention.
The present invention is the antiseptic treating agent of the stainless steel surface that is made of hydroxylammonium salt.
In addition, the present invention be under stainless steel surface and above-mentioned hydroxylammonium salt sanitas state of contact, the method for anticorrosion treatment that under the temperature more than 50 ℃, heats.
The stainless steel surface of the present invention preferred following form of hydroxylammonium salt antiseptic treating agent.
(1) hydroxylammonium salt is oxammonium sulfate salt or phosphatic hydroxylamine salt.
(2) antiseptic treating agent of forming by the aqueous solution of the hydroxylammonium salt that contains 0.2-50 weight % scope.
Implement optimal morphology of the present invention
Hydroxylammonium salt antiseptic treating agent of the present invention generally is made up of the aqueous solution of hydroxylammonium salt, and its concentration is in 0.2-50 weight % scope.Preferred concentration is in 5-20 weight % scope.Can enumerate oxammonium sulfate salt, phosphatic hydroxylamine salt and oxammonium hydrochloride salt as hydroxylammonium salt.Special preferably sulfuric acid azanol and phosphatic hydroxylamine.These hydroxylammonium salt can be prepared by above-mentioned well-known method and obtain.
The stainless steel rotproofing of carrying out with the hydroxylammonium salt aqueous solution of the present invention is performed such, generally use hydroxylammonium salt aqueous solution soaking stainless steel after, carry out heat treated under the temperature under normal pressure, more than 50 ℃.Though the time of handling is different and different because of the concentration of the hydroxylammonium salt aqueous solution and treatment temp etc., in general more than at least 3 minutes, preferred 1～20 hour.In addition, use autoclave etc., heating also is feasible under than 100 ℃ of high temperature of boiling point.Treatment temp is generally 60 ℃～160 ℃ scope.
How all generally form applicable to the antiseptic stainless steel of the present invention is feasible, preferred nickel or the high stainless steel of chromium content.The rotproofing of being undertaken by the present invention can suppress the corrosion of stainless steel under severe rugged environment, prevents effectively owing to corrosion produces sneaking into and polluting of impurity.For example, to as pharmaceuticals and electronic material detergent useful free (promptly, not being called the salt state) aqueous solution of azanol distills, when obtaining highly purified this solution, in advance the stainless steel water distilling apparatus is carried out above-mentioned rotproofing, just can prevent the corrosion that causes by the very strong azanol of corrodibility effectively, thereby can prevent sneaking into and pollute from the impurity of device.
Embodiment 1
In glass flask, the phosphatic hydroxylamine aqueous solution that adds concentration 20 weight % adds following stainless steel test film again and (behind size: about 40mm * 20mm * 3mm), heats in the oil bath that recirculation cooler is housed, under normal pressure, under about 100 ℃ of temperature, heat, test film is carried out rotproofing.Treatment time is 8 hours or 24 hours.
(1) SUS304L stainless steel (form: iron is about 73%, nickel is about 9%, chromium about 18%)
(2) SUS316L stainless steel (form: iron is about 70%, nickel is about 12%, chromium is about 16%, molybdenum about 2%)
(3) SUS310S stainless steel (form: iron is about 57%, nickel is about 19%, chromium about 24%)
In heat-resisting screw socket vial, add the sulfuric acid of 10 weight %, add again behind the test film of rotproofing, this heat-resisting screw socket vial is placed the regular hour in 80 ℃ thermostatic bath.Then test film take out cleaned, after the drying, carried out anti-corrosion test by the weight of determination test sheet.For relatively, use the test film of not process rotproofing also to carry out same anti-corrosion test.The experimental results reduction of gained is in table 1～3.
Table 1 (1) SUS304L
Test period was handled and was handled non-processor in 24 hours in 8 hours
(hr) weight (g) weight (g) weight (g)
0 16.4526 17.9558 18.5543
1 - - 18.2378
24 16.4523 17.9557 -
44 16.4521 17.9556 -
68 16.4518 17.9554 -
116 16.4517 17.9553 -
164 16.4513 17.9548 -
188 16.4513 17.9548 -
236 16.4514 17.9554 -
284 16.4516 17.9554 -
380 - 17.9546 -
529 - 17.9544 -
Table 2 (2) SUS316L
Test period was handled non-processor in 8 hours
(hr) weight (g) weight (g)
0 18.2641 18.2103
24 18.1244 17.6733
44 18.0132 -
Table 3 (3) SUS310S
Test period was handled non-processor in 8 hours
(hr) weight (g) weight (g)
0 17.3690 17.5489
1 - 17.4191
8 17.3690 -
23 17.3686 -
47 17.3687 -
71 17.3685 -
95 17.3688 -
119 17.3686 -
161 17.3684 -
209 17.3683 -
281 17.3685 -
329 17.3681 -
455 17.3679 -
Embodiment 2
With respect to embodiment 1, except the oxammonium sulfate salt brine solution with 20 weight % replaced the phosphatic hydroxylamine salt brine solution, usefulness and embodiment 1 same condition were carried out the rotproofing of test film.Treatment time is 8 hours, 24 hours or 72 hours.
Test film after the rotproofing carries out the corrosion resistance test same with embodiment 1.The gained experimental result is shown in table 4～6.
Table 4 (1) SUS304L
Test period was handled non-processor in 8 hours
(hr) weight (g) weight (g)
0 15.5943 18.5543
1 - 18.2378
24 15.5944 -
44 15.5940 -
68 15.5937 -
116 15.5935 -
164 15.5931 -
188 15.5931 -
236 15.5935 -
284 15.5937 -
380 15.5930 -
529 15.5929 -
Table 5 (2) SUS316L
Test period was handled non-processor in 8 hours
(hr) weight (g) weight (g)
0 18.2045 18.2103
24 18.0672 17.6733
44 17.9527 -
Table 6-1 (3) SUS310S
Test period was handled non-processor in 8 hours
(hr) weight (g) weight (g)
0 17.7900 17.5489
1 - 17.4191
8 17.7901 -
24 17.7897 -
47 17.7897 -
71 17.7895 -
95 17.7898 -
119 17.7896 -
167 17.7892 -
215 17.7894 -
287 17.7895 -
335 17.7888 -
455 17.7889 -
628 17.7887 -
Table 6-2 (3) SUS310S
Test period was handled non-processor in 24 hours
(hr) weight (g) weight (g)
0 17.9786 17.5489
1 - 17.4191
24 17.9787 -
44 17.9788 -
68 17.9785 -
116 17.9782 -
164 17.9784 -
236 17.9784 -
284 17.9779 -
335 17.9777 -
Table 6-3 (3) SUS310S
Test period was handled non-processor in 72 hours
(hr) weight (g) weight (g)
0 17.5712 17.5489
1 - 17.4191
19 17.5713 -
67 17.5710 -
115 17.5711 -
187 17.5711 -
235 17.5707 -
355 17.5707 -
528 17.5706 -
Embodiment 3
The oxammonium sulfate salt brine solution that in autoclave, adds 20 weight %, add again and test film (3) that embodiment 1 is same after, in oil bath, heat, under 160 ℃ temperature, heated 3 hours, carry out the rotproofing of test film.
Test film after the rotproofing carries out the corrosion resistance test same with embodiment 1.The gained experimental result is as shown in table 7.
Table 7 (3) SUS310S
Test period was handled non-processor in 3 hours
(hr) weight (g) weight (g)
0 17.1045 17.5489
1 - 17.4191
124 17.1041 -
Embodiment 4
The oxammonium sulfate salt brine solution that adds 5 weight % in the autoclave, add again and test film (1) or (3) that embodiment 1 is same after, in oil bath, heat, under 160 ℃ temperature, heated 8 hours, carry out the rotproofing of test film.
Test film after the rotproofing carries out the corrosion resistance test same with embodiment 1.The gained experimental result is shown in table 8 and 9.
Table 8 (1) SUS304L
Test period was handled non-processor in 8 hours
(hr) weight (g) weight (g)
0 17.9588 18.5543
1 - 18.2378
124 17.9583 -
Table 9 (3) SUS310S
Test period was handled non-processor in 8 hours
(hr) weight (g) weight (g)
0 35.5074 17.5489
1 - 17.4191
124 35.5066 -
The result shows shown in table 1～9, and the stainless steel that carries out rotproofing by the inventive method soaks after tens of hours and even hundreds of hours in the pyritous dilute sulphuric acid, and weight is almost constant, and corrosion phenomenon does not almost take place.On the other hand, the stainless steel that does not carry out rotproofing is after immersion in 1～24 hour process, and heavy corrosion takes place the not only blackening but also produce bubble of all stainless steel surface.Can distinguish that from these results it is very effective carrying out stainless anti-corrosive treatment with antiseptic treating agent of the present invention and method for anticorrosion treatment.
Utilize possibility in the production
Hydroxylamine salt antiseptic treating agent of the present invention improves stainless steel significantly for being used in, particularly The corrosion resistance of chromium stainless steel is useful. In addition, use method for anticorrosion treatment of the present invention, no Even long-time place also not can the corrosion phenomenon in the harsh environment such as acid or alkali for the rust steel, from And can effectively prevent sneaking into and polluting of impurity that the corrosion because of stainless steel surfaces produces.
Claims (5)
1. stainless steel surface antiseptic treating agent, it is made up of hydroxylammonium salt.
2. according to the hydroxylammonium salt antiseptic treating agent of claim 1, it is characterized in that hydroxylammonium salt is oxammonium sulfate salt or phosphatic hydroxylamine salt.
3. stainless steel surface antiseptic treating agent, its aqueous solution by the hydroxylammonium salt that contains 0.2-50 weight % scope is formed.
4. the antiseptic process of stainless steel surface is characterized in that, under arbitrary described antiseptic treating agent state of contact, heats under the temperature more than 50 ℃ in stainless steel surface and claim 1～3.
5. according to the stainless steel surface antiseptic process of claim 4, it is characterized in that, under 50 ℃～200 ℃ temperature, heat.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP83529/2000 | 2000-03-24 | ||
| JP2000083529A JP2001271184A (en) | 2000-03-24 | 2000-03-24 | Corrosion protection treating agent and method for stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1429281A true CN1429281A (en) | 2003-07-09 |
Family
ID=18600147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01809442A Pending CN1429281A (en) | 2000-03-24 | 2001-03-23 | Anticorrosive agent for stainless steel and method of anticorrosive treatment of stainless steel |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20010032658A1 (en) |
| EP (1) | EP1266981A4 (en) |
| JP (1) | JP2001271184A (en) |
| KR (1) | KR20030007476A (en) |
| CN (1) | CN1429281A (en) |
| AU (1) | AU4276401A (en) |
| WO (1) | WO2001071061A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966591A (en) * | 2013-01-30 | 2014-08-06 | 中国科学院金属研究所 | Chemical treatment method for improving pitting corrosion resistance of austenitic stainless steel |
| CN105694538A (en) * | 2016-01-05 | 2016-06-22 | 萧县金鹭纺织品有限公司 | Preparation method of low-oil-absorption-amount anticorrosion iron oxide red pigment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5355427A (en) * | 1976-10-30 | 1978-05-19 | Furukawa Electric Co Ltd | Antioxidation method for metals |
| US4350606A (en) * | 1980-10-03 | 1982-09-21 | Dearborn Chemical Company | Composition and method for inhibiting corrosion |
| US4865653A (en) * | 1987-10-30 | 1989-09-12 | Henkel Corporation | Zinc phosphate coating process |
| CH689307A5 (en) * | 1995-04-13 | 1999-02-15 | Cement Intellectual Property L | Process for both corrosion inhibition and strengthening the bonding properties of reinforcing metals. |
-
2000
- 2000-03-24 JP JP2000083529A patent/JP2001271184A/en not_active Withdrawn
-
2001
- 2001-03-23 WO PCT/JP2001/002319 patent/WO2001071061A1/en not_active Application Discontinuation
- 2001-03-23 CN CN01809442A patent/CN1429281A/en active Pending
- 2001-03-23 KR KR1020027012610A patent/KR20030007476A/en not_active Application Discontinuation
- 2001-03-23 EP EP01915719A patent/EP1266981A4/en not_active Withdrawn
- 2001-03-23 AU AU42764/01A patent/AU4276401A/en not_active Abandoned
- 2001-03-26 US US09/816,386 patent/US20010032658A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966591A (en) * | 2013-01-30 | 2014-08-06 | 中国科学院金属研究所 | Chemical treatment method for improving pitting corrosion resistance of austenitic stainless steel |
| WO2014117436A1 (en) * | 2013-01-30 | 2014-08-07 | 中国科学院金属研究所 | Process for improving pitting corrosion resistance of austenitic stainless steels by chemical processing |
| CN103966591B (en) * | 2013-01-30 | 2017-03-29 | 中国科学院金属研究所 | A kind of chemical treatment method for improving austenitic stainless steel corrosion resistance |
| CN105694538A (en) * | 2016-01-05 | 2016-06-22 | 萧县金鹭纺织品有限公司 | Preparation method of low-oil-absorption-amount anticorrosion iron oxide red pigment |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030007476A (en) | 2003-01-23 |
| AU4276401A (en) | 2001-10-03 |
| EP1266981A4 (en) | 2006-12-27 |
| JP2001271184A (en) | 2001-10-02 |
| US20010032658A1 (en) | 2001-10-25 |
| EP1266981A1 (en) | 2002-12-18 |
| WO2001071061A1 (en) | 2001-09-27 |
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