CN108707959A - A kind of neutral environmentally friendly electrochemistry rust remover and technique for applying - Google Patents
A kind of neutral environmentally friendly electrochemistry rust remover and technique for applying Download PDFInfo
- Publication number
- CN108707959A CN108707959A CN201810304188.7A CN201810304188A CN108707959A CN 108707959 A CN108707959 A CN 108707959A CN 201810304188 A CN201810304188 A CN 201810304188A CN 108707959 A CN108707959 A CN 108707959A
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- Prior art keywords
- rust remover
- parts
- environmentally friendly
- derusting
- technique
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
- C25F1/06—Iron or steel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a kind of neutral environmentally friendly electrochemistry rust remover and technique for applying, belong to the technical field of Deruster for metal.The rust remover of the present invention is made of citric acid, sodium citrate, ammonium sulfate, EDTA, sodium benzoate, laureth sodium sulfovinate, triethanolamine, deionized water；Its technique for applying is：Anode is workpiece, cathode：Stainless steel plate, t=1~5min, i=1~10A/dm2, T=15~45 DEG C.The rust remover has derusting, descales rapidly, both can be adapted for the derusting of suspension type workpiece, has descaled, and is also suitably adapted for large-scale coil type strip scale removal, and simple production process simultaneously corrodes metallic matrix small；Both the derusting for being suitble to ferrous metal also to be adapted for non-ferrous metal descales, applied widely；Rust removing solution volatilizees without acid mist simultaneously, harmless, wastewater treatment is simple.
Description
Technical field
The present invention relates to the technical field of Deruster for metal more particularly to a kind of neutral environmentally friendly electrochemistry rust remover and its answer
Use technique.
Background technology
The derusting of metal surface such as steel surface, the processing that descales are steel surfaces in drawing, cold rolling, hot dip, vacuum
Necessary pretreatment procedure before plating, plating, phosphatization, oxidation, application ... wait, matter of this pretreatment procedure to subsequent handling
Amount plays the role of extremely important key technology.At present for the processing of rust removing mode of steel surface substantially there are two types of：At machinery
Reason（Such as：Sandblasting, grinding and polishing light）, chemical treatment（Such as：Pickling）, wherein mechanical treatment is not because having discharge of wastewater, convenient for production, mesh
Before be still many small workpieces, the important processing of rust removing mode of super large facility, it is of high cost however, because time-consuming for the processing mode,
So its application is very restricted.For chemical derusting processing mode because its is easy to operate, at low cost and effect is preferable, so answering
With relatively extensively, a large amount of acid solution is used in being handled due to the chemical derusting being generally used at present, rust removing solution be easy to cause steel sheet
Hydrogen embrittlement occurs for body, makes steel material strength reduction；Steel surface after derusting simultaneously is easy to happen excessive erosion, and what is generated is a large amount of
Acid mist and wastewater treatment are difficult to cause serious harm to environment.And the mode of such processing of rust removing is primarily adapted for use in steel,
The processing of the ferrous metal surfaces such as cast iron, and the derusting of other metals such as metals such as aluminium, copper and bronze cannot be answered well
With use scope is small.In addition, occurred a kind of environment ultrasonic derusting technology in the market in recent years, it is right because it volatilizees without acid mist
Human body is harmless so be valued by people, but it there are three disadvantages：1. being that this rust removing solution descales, it is necessary to ultrasound
Wave, ultrasonic power one is big, and noise all has an impact entire factory.2. the ultrasonic cleaning liquid descales, the time is long, effect
Difference generally at least 10 minutes or more, is not suitable for the production of the large batch of continuous descale of steel band.3. the ultrasonic cleaning liquid is used
After a period of time, iron ion is just easy to lump after reaching a certain amount of, once the entire trough that lumps all is g., jelly-like, cleaning is very numb
It is tired, and the iron ion being complexed can not detach, and rust removing solution is difficult regeneration, so this technology all does user fearness, as long as
Just listen that ultrasonic cleaning is just afraid of.
Invention content
The purpose of the invention is to overcome the above-mentioned prior art, a kind of neutral environmentally friendly electrochemistry rust remover is provided
And its technique for applying, neutrality environmental protection electrochemistry rust remover is by citric acid, sodium citrate, ammonium sulfate, EDTA, sodium benzoate, the moon
Laureth sodium sulfovinate, triethanolamine, deionized water composition, have derusting, descale rapidly, both can be adapted for hanging
The derusting of formula workpiece descales, and is also suitably adapted for large-scale coil type strip scale removal, simple production process and to Metal Substrate
Body corrosion is small；Both the derusting for being suitble to ferrous metal also to be adapted for non-ferrous metal descales, applied widely；Rust removing solution anacidity simultaneously
Mist volatilizees, harmless, wastewater treatment is simple.
The technical solution adopted by the present invention to solve the technical problems is：A kind of neutral environmentally friendly electrochemistry rust remover, by lemon
Lemon acid, sodium citrate, ammonium sulfate, EDTA, sodium benzoate, laureth sodium sulfovinate, triethanolamine, deionized water composition.
Preferably, a kind of neutral environmentally friendly electrochemistry rust remover as described above, by the composition of raw materials group of following masses number
At:20~50 parts of citric acid, 20~50 parts of sodium citrate, 10~30 parts of ammonium sulfate, 2~4 parts of EDTA, 3~6 parts of sodium benzoate,
0.5~2 part of laureth sodium sulfovinate, 0.5-3 parts of triethanolamine, 65~85 parts of deionized water.
A kind of electrolytic derusting process program of neutral environmentally friendly electrochemistry rust remover is：Anode is workpiece, cathode：Stainless steel
Plate, t=1~5min, i=1~10A/dm2, T=15~45 DEG C.
Preferably, a kind of electrolytic derusting technique of neutral environmentally friendly electrochemistry rust remover as described above, the workpiece are
Ferrous metal, non-ferrous metal.
Compared with prior art, the beneficial effects of the invention are as follows：
1, the present invention provides a kind of neutral environmentally friendly electrochemistry rust remover, neutrality environmental protection electrochemistry rust remover has derusting, removes
Oxide skin is rapid, both can be adapted for the derusting of suspension type workpiece, has descaled, has also been suitably adapted for large-scale coil type strip and goes deoxygenation
Change skin, simple production process simultaneously corrodes metallic matrix small.
2, the environmentally friendly electrochemistry rust remover of the neutrality was both suitble to the derusting of the ferrous metal such as steel to descale, and also was adapted for coloured
Metal（Such as aluminium alloy, kirsite ...）Derusting descale, it is applied widely.
3, the environmentally friendly electrochemistry rust remover of the neutrality is free of P, F, NO without strong corrosives raw materials such as any sulfuric acid, hydrochloric acid2、
NO3, CN, environmentally hazardous any toxic ingredient such as heavy metal, while rust removing solution volatilizees without acid mist, harmless, is one
Finish the completely new product of loopful guarantor.
Specific implementation mode
The following is specific embodiments of the present invention, is described further to technical scheme of the present invention, but the present invention's is interior
Hold the range being not limited solely to described in embodiment, it is every to be included in this without departing substantially from the change of present inventive concept or equivalent substitute
Within the protection domain of invention.
Embodiment 1
A kind of neutral environmentally friendly electrochemistry rust remover, is grouped as by the composition of raw materials group of following mass percent：20 parts of citric acid, lemon
20 parts of lemon acid sodium, 10 parts of ammonium sulfate, 2 parts of EDTA, 3 parts of sodium benzoate, 0.5 part of laureth sodium sulfovinate, triethanolamine
0.5 part, 65 parts of deionized water.
A kind of electrolytic derusting process program of neutral environmentally friendly electrochemistry rust remover is：Anode is workpiece, cathode：Stainless steel
Plate, t=5min, i=1A/dm2, T=15 DEG C.Implementing workpiece is：Zinc alloy workpiece.
Embodiment 2
A kind of neutral environmentally friendly electrochemistry rust remover, is grouped as by the composition of raw materials group of following mass percent:50 parts of citric acid,
50 parts of sodium citrate, 30 parts of ammonium sulfate, 4 parts of EDTA, 6 parts of sodium benzoate, 2 parts of laureth sodium sulfovinate, triethanolamine 3
Part, 85 parts of deionized water.
A kind of electrolytic derusting process program of neutral environmentally friendly electrochemistry rust remover is：Anode is workpiece, cathode：Stainless steel
Plate, t=1min, i=10A/dm2, T=45 DEG C.Implementing workpiece is：Cold-rolled steel sheet.
Embodiment 3
A kind of neutral environmentally friendly electrochemistry rust remover, is grouped as by the composition of raw materials group of following mass percent:35 parts of citric acid,
35 parts of sodium citrate, 20 parts of ammonium sulfate, 3 parts of EDTA, 5 parts of sodium benzoate, 1.3 parts of laureth sodium sulfovinate, triethanolamine
1.8 parts, 75 parts of deionized water.
A kind of electrolytic derusting process program of neutral environmentally friendly electrochemistry rust remover is：Anode is workpiece, cathode：Stainless steel
Plate, t=3min, i=6A/dm2, T=30 DEG C.Implementing workpiece is：Al alloy parts.
Claims (4)
1. a kind of neutral environmentally friendly electrochemistry rust remover, it is characterised in that：The rust remover by citric acid, sodium citrate, ammonium sulfate,
EDTA, sodium benzoate, laureth sodium sulfovinate, triethanolamine, deionized water composition.
2. a kind of neutral environmentally friendly electrochemistry rust remover as described in claim 1, it is characterised in that：Each raw material presses following quality
Number forms:20~50 parts of citric acid, 20~50 parts of sodium citrate, 10~30 parts of ammonium sulfate, 2~4 parts of EDTA, sodium benzoate 3
~6 parts, 0.5~2 part of laureth sodium sulfovinate, 0.5-3 parts of triethanolamine, 65~85 parts of deionized water.
3. a kind of technique for applying of neutral environmentally friendly electrochemistry rust remover, it is characterised in that：Anode is workpiece, cathode：Stainless steel plate,
T=1~5min, i=1~10A/dm2, T=15~45 DEG C.
4. a kind of technique for applying of neutral environmentally friendly electrochemistry rust remover as claimed in claim 3, it is characterised in that：The work
Part is ferrous metal, non-ferrous metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810304188.7A CN108707959A (en) | 2018-04-08 | 2018-04-08 | A kind of neutral environmentally friendly electrochemistry rust remover and technique for applying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810304188.7A CN108707959A (en) | 2018-04-08 | 2018-04-08 | A kind of neutral environmentally friendly electrochemistry rust remover and technique for applying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108707959A true CN108707959A (en) | 2018-10-26 |
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| CN201810304188.7A Pending CN108707959A (en) | 2018-04-08 | 2018-04-08 | A kind of neutral environmentally friendly electrochemistry rust remover and technique for applying |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747992A (en) * | 2020-12-31 | 2021-05-04 | 东北大学 | Metallographic structure display method of Mg-containing 440C corrosion-resistant stainless bearing steel based on three-step method |
| CN114156099A (en) * | 2021-12-06 | 2022-03-08 | 北京七星飞行电子有限公司 | Method for processing capacitor lead |
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| EP0129194A1 (en) * | 1983-06-13 | 1984-12-27 | Hitachi, Ltd. | Process for removing metal surface oxide |
| JPS61167000A (en) * | 1985-01-21 | 1986-07-28 | Nippon Kokan Kk <Nkk> | Removing method of oxide film from continuously annealed steel strip |
| CN1231350A (en) * | 1998-04-06 | 1999-10-13 | 高福麒 | Electro-acoustic quick oil, scale and rust removing clean agent for metal and clean method thereof |
| CN1782139A (en) * | 2005-06-20 | 2006-06-07 | 杭州钢铁集团公司 | Method for electrochemically removing scale from stainless steel strip and wire |
| CN101824645A (en) * | 2010-05-14 | 2010-09-08 | 河海大学常州校区 | Method for eliminating oxide skins on stainless steel surface by micro-arc |
| CN102899709A (en) * | 2012-09-21 | 2013-01-30 | 无锡市顺达物流涂装设备有限公司 | Liquid phase plasma derusting solution of steel and derusting process |
| CN106400096A (en) * | 2016-10-27 | 2017-02-15 | 邢立杰 | Strip steel electrolysis descaling process and device |
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2018
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Patent Citations (7)
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| EP0129194A1 (en) * | 1983-06-13 | 1984-12-27 | Hitachi, Ltd. | Process for removing metal surface oxide |
| JPS61167000A (en) * | 1985-01-21 | 1986-07-28 | Nippon Kokan Kk <Nkk> | Removing method of oxide film from continuously annealed steel strip |
| CN1231350A (en) * | 1998-04-06 | 1999-10-13 | 高福麒 | Electro-acoustic quick oil, scale and rust removing clean agent for metal and clean method thereof |
| CN1782139A (en) * | 2005-06-20 | 2006-06-07 | 杭州钢铁集团公司 | Method for electrochemically removing scale from stainless steel strip and wire |
| CN101824645A (en) * | 2010-05-14 | 2010-09-08 | 河海大学常州校区 | Method for eliminating oxide skins on stainless steel surface by micro-arc |
| CN102899709A (en) * | 2012-09-21 | 2013-01-30 | 无锡市顺达物流涂装设备有限公司 | Liquid phase plasma derusting solution of steel and derusting process |
| CN106400096A (en) * | 2016-10-27 | 2017-02-15 | 邢立杰 | Strip steel electrolysis descaling process and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747992A (en) * | 2020-12-31 | 2021-05-04 | 东北大学 | Metallographic structure display method of Mg-containing 440C corrosion-resistant stainless bearing steel based on three-step method |
| CN112747992B (en) * | 2020-12-31 | 2024-03-15 | 东北大学 | Metallographic structure display method of Mg-containing 440C corrosion-resistant stainless bearing steel based on three-step method |
| CN114156099A (en) * | 2021-12-06 | 2022-03-08 | 北京七星飞行电子有限公司 | Method for processing capacitor lead |
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Application publication date: 20181026 |