CN1075177A - Rust removing and contaminant releasing technology for metal surface by electrochemical process - Google Patents
Rust removing and contaminant releasing technology for metal surface by electrochemical process Download PDFInfo
- Publication number
- CN1075177A CN1075177A CN 92100771 CN92100771A CN1075177A CN 1075177 A CN1075177 A CN 1075177A CN 92100771 CN92100771 CN 92100771 CN 92100771 A CN92100771 A CN 92100771A CN 1075177 A CN1075177 A CN 1075177A
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- pickle solution
- clear water
- metallic surface
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- rust
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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
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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
A kind of with the technology of electrochemical method to the metallic surface rust removing and contaminant releasing.Existing cleaner for metal scavenging period is long, and is bad to metal-derusting effects such as stainless steels, and also can't remove the incrustation scale of some metallic surface complicated component.The present invention adopts the metallic surface of general electrolyte pickle solution cleaning tape rust band dirt, it is characterized in that between electrolytic pickling liquor and metalwork, adding the alternating electric field of one 50 hertz～1 megahertz, adopt this technology all can reach 98～100% to various metal-derusting rates, also fine to the scale descaling effect of some metallic surface complicated component.
Description
The invention belongs to the technology of electrochemical method the metallic surface rust removing and contaminant releasing.
The metal-derusting tradition is to adopt acid wash, the sour emission of serious pollution of environment of this technology, and also the rust cleaning effect is bad.Now existing many novel metal scavenging solutions, free from environmental pollution, the rust cleaning effect is also better, but bad to some metal such as the stainless steel effect that then eliminates rust.Be exclusively used in and contain violent in toxicity hydrofluoric acid in the stainless scavenging solution, and the rust cleaning required time is very long, need more than several hours.Existing in addition scavenging solution also can't be removed the dirty thing of some metallic surface complicated component, and as the manosil AS salt crust that electrolytic aluminium factory carries the metal pipe internal wall of moisture aluminium powder to forge, the quality densification is difficult to remove.Existing electrolytic derusting (also being electrolytic etching) is also bad to the removal effect of thick rust, and the time is long, and can not descale.
The present invention aims to provide a kind of rust removing and contaminant releasing technology for metal surface by electrochemical process that is applicable to stainless steel and various metals, and this technology can be quickened the rust removing and contaminant releasing speed of common acid washing lotion, and rust removing and contaminant releasing is effective.
The object of the present invention is achieved like this: adopt the metallic surface of electrolytic pickling liquor cleaning tape rust band dirt, it is characterized in that: the alternating electric field that adds a 50HZ～1 megahertz between electrolytic pickling liquor and band rust are with dirty metal.
Its principle of work is: ionogen is under the effect of alternating electric field, positive and negative charge in the molecule will be shifted, form electric dipole, the direction of formed electric dipole all is orientated along the external electric field direction, therefore electric dipole is interacting again in the polar vigorous exercise repeatedly, thereby make the intermolecular friction Shaoxing opera that also becomes strong, impel high-frequency energy to convert vigorous reaction between electrolytic pickling liquor and the oxidation on metal surface thing to, remove oxide compound or other dirty thing of metallic surface with this.
Adopt technology rust cleaning rate of the present invention can reach 98～100%, particularly all can remove the impurity incrustation scale of stainless steel surface oxide compound and some metallic surface complicated components, descaling rate can reach 70～80%.Its clean-up time is looked knot rust joint dirt degree and area and different, only needs get final product in 2～6 minutes generally speaking, and its electrolytic pickling liquor do not contain violent in toxicity, does not discharge, and can be recycled.
The invention will be further described below in conjunction with embodiment.
Accompanying drawing 1: the embodiment of the invention one is cleaned the stainless steel work-piece process schematic representation.
1, stainless steel work-piece 2, pickle solution spray thrower 3, clear water spray thrower
4, pickling liquid pool 5, dividing plate 6, clean water basin
7, slag-drip opening 8, pickle solution circulatory pool 9, clear water circulatory pool
10, circulation tube 11, pickle solution recycle pump 12, clear water recycle pump
13, circulation tube 14, roller 15, cover
In the present embodiment, with stainless steel part or other metalwork be placed on a row can driven roller 14 on, the roller top layer is a conductor, being insulated layer with its central shaft isolates, the roller bottom is arranged side by side pickling liquid pool 4 and the clean water basin 6 that useful insulating material is made, these two ponds communicate with pickle solution circulatory pool 8 and the clear water circulatory pool 9 made with insulating material by circulation tube 10 and circulation tube 13 respectively, stainless steel work-piece top, the bottom is respectively equipped with high pressure pickle solution spray thrower 2 and the clear water spray thrower 3 that metallic conductor is made, high pressure pickle solution spray thrower 2 is by pickle solution recycle pump 11 logical pickle solution circulatory pools 8, clear water spray thrower 3 is by clear water recycle pump 12 logical clear water circulatory pools 9, with 60HZ, 36 volts alternating voltage is added between roller 14 outside surface conductors and the high pressure pickle solution spray thrower, working current is 20A, the main components in percentage by weight of electrolytic pickling liquor is: nitric acid: phosphoric acid: sulfuric acid: the nitric acid inhibiter: water=20: 10: 20: 4: 46, and then in 1: 1 ratio thin up.
During cleaning workpiece, alternating voltage is added between workpiece and the pickle solution spray thrower 2, open pickle solution recycle pump 11 and clear water recycle pump 12, the pickle solution of extracting out in the pickle solution circulatory pool from pickle solution spray thrower 2 with the pressure of 3～16kg from both direction spray workpiece up and down, the liquid that has washed falls into the pickling liquid pool, flows into the pickle solution circulatory pool by circulation tube 10.Drive stainless steel parts at this while roller 14 and advance, behind the pickle solution spray, by the cleaning of water spray thrower, finish whole cleanings so then.
The rust cleaning rate of present embodiment reaches 99%, scavenging period 4 minutes.
Embodiment 2: clean the common iron workpiece
Voltage: 36 volts
Frequency: 100KHZ
Electric current: 80A
Other processing method is with embodiment 1, and its rust cleaning rate is 98～100%, scavenging period 2 minutes.
Embodiment 3: have the incrustation scale of the thick quality densification of 20mm on the inner wall of metal tube of electrolytic aluminium factory conveying aluminium powder, adopt the concrete parameter of this technology:
Voltage: 36V
Frequency: 60HZ
Electric current: 150A
Bath composition: with embodiment 1
Metal tube is immersed in the electrolysis liquid pool, switched on 6 minutes, the shelling of inwall incrustation scale is peeled off, and descaling rate is 80%.
Claims (4)
1, a kind of electrochemical method promptly adopts the metallic surface of electrolytic pickling liquor cleaning tape rust band dirt to the technology of metallic surface rust removing and contaminant releasing, it is characterized in that: the alternating electric field that adds one 50 hertz～1 megahertz between electrolytic pickling liquor and band rust deposite metal.
2, technology as claimed in claim 1, it is characterized in that: described employing electrolytic pickling liquor cleaning tape rust with the concrete grammar of dirty metallic surface is: with metal works be placed on a row can driven roller 14 on, the roller top layer is a conductor, being insulated layer with its central shaft isolates, the roller bottom is arranged side by side pickling liquid pool 4 and the clean water basin 6 that useful insulating material is made, these two ponds communicate with pickle solution circulatory pool 8 and the clear water circulatory pool 9 made with insulating material by circulation tube 10 and circulation tube 13 respectively, metal works top, the bottom is respectively equipped with high pressure pickle solution spray thrower 2 and the clear water spray thrower 3 that metallic conductor is made, high pressure pickle solution spray thrower 2 is by the logical pickle solution circulatory pool 8 of pickle solution recycle pump, clear water spray thrower 3 is by clear water recycle pump 12 logical clear water circulatory pools 9, alternating source is added between roller 14 outside surface conductors and the high pressure pickle solution spray thrower, open pickle solution recycle pump 11, with 3-16kg/cm
2High pressure is opened clear water recycle pump 12 from both direction up and down simultaneously to metal works spray pickling liquid, to the working metal spray clear water through the pickle solution spray.
3, technology as claimed in claim 1 or 2 is characterized in that, the voltage of alternating source is selected between the 12-70 volt.
As claim 1,2 or 3 described technologies, it is characterized in that 4, the working current that alternating source provides is the 5-500 ampere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100771 CN1075177A (en) | 1992-02-01 | 1992-02-01 | Rust removing and contaminant releasing technology for metal surface by electrochemical process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100771 CN1075177A (en) | 1992-02-01 | 1992-02-01 | Rust removing and contaminant releasing technology for metal surface by electrochemical process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1075177A true CN1075177A (en) | 1993-08-11 |
Family
ID=4938790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92100771 Withdrawn CN1075177A (en) | 1992-02-01 | 1992-02-01 | Rust removing and contaminant releasing technology for metal surface by electrochemical process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1075177A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071452A (en) * | 2011-01-27 | 2011-05-25 | 薛文龙 | Acid washing-free electrolytic rust removing equipment |
| CN102220625A (en) * | 2011-06-01 | 2011-10-19 | 孔庆山 | Electrolytic spray cleaning process for large metal workpiece |
| CN102357480A (en) * | 2006-02-10 | 2012-02-22 | 坦南特公司 | Method for producing electrochemically activated cleaning liquid |
| CN102965718A (en) * | 2011-09-01 | 2013-03-13 | 瑞研材料科技股份有限公司 | Method for removing stainless steel scale |
| CN104674331A (en) * | 2013-11-28 | 2015-06-03 | 中国航空工业集团公司北京航空材料研究院 | Cleaning method for corrosion products of metal structure sample |
| CN106400097A (en) * | 2015-07-24 | 2017-02-15 | 伍柏峰 | Heating electrode descaling method |
| CN108823631A (en) * | 2018-06-28 | 2018-11-16 | 山东鼎诺节能环保服务有限公司 | A kind of metal surface by electrochemical rust removing and contaminant releasing device and method |
| CN110923797A (en) * | 2019-11-08 | 2020-03-27 | 东莞市国瓷新材料科技有限公司 | Process for improving DPC electroplating hole filling uniformity by utilizing electrolytic cleaning and cleaning |
| CN112059156A (en) * | 2020-09-21 | 2020-12-11 | 安徽省含山县富坤铸造厂 | Foundry goods surface sand sticking processing apparatus |
-
1992
- 1992-02-01 CN CN 92100771 patent/CN1075177A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357480A (en) * | 2006-02-10 | 2012-02-22 | 坦南特公司 | Method for producing electrochemically activated cleaning liquid |
| CN102357480B (en) * | 2006-02-10 | 2014-06-18 | 坦能公司 | Method for producing electrochemically activated cleaning liquid |
| CN102071452A (en) * | 2011-01-27 | 2011-05-25 | 薛文龙 | Acid washing-free electrolytic rust removing equipment |
| CN102071452B (en) * | 2011-01-27 | 2016-03-23 | 薛文龙 | Exempt from pickling electrolytic rust removing equipment |
| CN102220625A (en) * | 2011-06-01 | 2011-10-19 | 孔庆山 | Electrolytic spray cleaning process for large metal workpiece |
| CN102220625B (en) * | 2011-06-01 | 2012-10-17 | 孔庆山 | Electrolytic spray cleaning process for large metal workpiece |
| CN102965718A (en) * | 2011-09-01 | 2013-03-13 | 瑞研材料科技股份有限公司 | Method for removing stainless steel scale |
| CN104674331A (en) * | 2013-11-28 | 2015-06-03 | 中国航空工业集团公司北京航空材料研究院 | Cleaning method for corrosion products of metal structure sample |
| CN106400097A (en) * | 2015-07-24 | 2017-02-15 | 伍柏峰 | Heating electrode descaling method |
| CN108823631A (en) * | 2018-06-28 | 2018-11-16 | 山东鼎诺节能环保服务有限公司 | A kind of metal surface by electrochemical rust removing and contaminant releasing device and method |
| CN110923797A (en) * | 2019-11-08 | 2020-03-27 | 东莞市国瓷新材料科技有限公司 | Process for improving DPC electroplating hole filling uniformity by utilizing electrolytic cleaning and cleaning |
| CN112059156A (en) * | 2020-09-21 | 2020-12-11 | 安徽省含山县富坤铸造厂 | Foundry goods surface sand sticking processing apparatus |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C03 | Withdrawal of patent application (patent law 1993) | ||
| WW01 | Invention patent application withdrawn after publication |