CN103343381B - A kind of high-frequency impulse low-temperature quick derusting device and method - Google Patents
A kind of high-frequency impulse low-temperature quick derusting device and method Download PDFInfo
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- CN103343381B CN103343381B CN201310284158.1A CN201310284158A CN103343381B CN 103343381 B CN103343381 B CN 103343381B CN 201310284158 A CN201310284158 A CN 201310284158A CN 103343381 B CN103343381 B CN 103343381B
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- rust
- removing solution
- rust cleaning
- rust removing
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Abstract
A kind of high-frequency impulse low-temperature quick derusting device, comprise the rust cleaning cell body for holding rust removing solution and workpiece, be also provided with the battery lead plate be communicated with workpiece, battery lead plate is connected with power electric.Adopt a method for above-mentioned device quick derusting, comprise the following steps: one, configure rust removing solution and insert in rust cleaning cell body, the proportioning of rust removing solution is the 36%wtHCl of massfraction 3 ~ 13%, the 98%wtH of 2 ~ 7%
2sO
4, 3 ~ 6% Na
3pO
4, surplus is water; Two, after workpiece is communicated with battery lead plate, is placed in rust cleaning cell body and immerses rust removing solution; Three, power-on, outward current 30 ~ 400A, frequency 0 ~ 30kHz, rust cleaning time 3 ~ 5min; The quick derusting of workpiece is realized by above-mentioned steps.The structure of apparatus of the present invention is simple, processing cost is low, the rust cleaning time is short, and working efficiency is high; Greatly can reduce the compound concentration of acid, eliminate the impact of steel piece surface hydrogen embrittlement.
Description
Technical field
The present invention relates to rust cleaning field, particularly a kind of high-frequency impulse low-temperature quick derusting device and method, the method is particularly useful for alumetizing process workpiece surface processing of rust removing.
Background technology
In industries closely-related with metal such as engineering construction, petrochemical complex, shipbuilding, electric power smeltings, effectively remove metallic surface corrosion layer is the difficult problem that people pay close attention to always, and particularly before steel plating, application, carrying out surface derusting process is necessary technique.At present, steel surface derusting method mainly contains mechanical rust removal, chemical rust removing.Mechanical rust removal (shot-peening method, high-pressure water jet method etc.) easily produces dust and noise, rust cleaning efficiency is low, there is damage to steel surface, surface may occur excessive depression, and be not suitable for some special surfaces as steel pipe inner wall, complex structure workpiece and thin wall steel material; Front surface plating, cementation process pre-treatment derusting process adopt chemical rust removing mostly, learning rust cleaning mainly utilizes the chemical substance such as high concentrated acid, alkali to remove steel surface corrosion, because deruster contains high concentrated acid or alkaline solution, have severe corrosive and gaseous volatilization environmental pollution large, workshop appliance also causes corrosion; Workpiece pickling time is long, and efficiency is low, and pickling workpiece easily produces hydrogen embrittlement and causes the infiltration layer of final aluminising part to there is crackle.Sulfuric acid concentration disclosed in patent CN1392283A is 20% ~ 25%, pickling time 15 ~ 20 minutes, and rust removing solution concentration disclosed in patent CN103132089A is the sulfuric acid of 15% ~ 40%, 2% ~ 20% hydrochloric acid.The sulfuric acid concentration wherein adopted is all higher, and harmless treatment difficulty is comparatively large, and pickling time is longer, and efficiency is lower.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high-frequency impulse low-temperature quick derusting device and method, can remove the corrosion of workpiece surface fast.Further, the rust removing solution that concentration is lower can be adopted, reduce the impact on environment.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of high-frequency impulse low-temperature quick derusting device, and comprise the rust cleaning cell body for holding rust removing solution and workpiece, be also provided with the battery lead plate be communicated with workpiece, battery lead plate is connected with power electric.
Described battery lead plate is positioned at above rust cleaning cell body, and does not contact with rust removing solution.
Described workpiece is connected by the coupling device conducted electricity with between battery lead plate;
Described coupling device comprises hook, conductive clip and wire.
Also be provided with dividing plate in described rust cleaning cell body, dividing plate is provided with multiple through hole.
Described electric power outputting current scope is 30 ~ 400A, frequency 0 ~ 30kHz.
Described power supply is for exchanging or direct current output, and output current scope is 30 ~ 80A, frequency 0 ~ 15kHz.
Adopt a method for above-mentioned device quick derusting, comprise the following steps:
One, configure rust removing solution to insert in rust cleaning cell body, the proportioning of rust removing solution is the 36%wtHCl of massfraction 3 ~ 13%, the 98%wtH of 2 ~ 7%
2sO
4, 3 ~ 6% Na
3pO
4, surplus is water;
Two, after workpiece is communicated with battery lead plate, is placed in rust cleaning cell body and immerses rust removing solution;
Three, power-on, outward current 30 ~ 400A, frequency 0 ~ 30kHz, wherein exporting alternating current scope is 30 ~ 400A, frequency 8 ~ 30kHz, rust cleaning time 3 ~ 5min;
The quick derusting of workpiece is realized by above-mentioned steps.
The output current scope of power supply is 30 ~ 80A, frequency 0 ~ 15kHz.
Power acquisition alternating current-direct current alternately exports, and wherein the alternating-current pulse time is 1 ~ 2min, direct current time 0.5 ~ 1min.
The proportioning of rust removing solution is the 36%wtHCl of massfraction 8 ~ 10%, the 98%wtH of 4 ~ 6%
2sO
4, 4 ~ 5% Na
3pO
4, surplus is water.
The present invention, relative to prior art, has following advantage and effect:
1, the structure of apparatus of the present invention is simple, processing cost is low, the rust cleaning time is short, and working efficiency is high;
2, adopt the present invention greatly can reduce the compound concentration of acid, reduce acid consumption, eliminate the impact of steel piece surface hydrogen embrittlement, reduce the harmless treatment difficulty in later stage, alleviate the impact on environment.
4, adopt the present invention not only can remove workpiece surface rusty scale and other impurity, and can the crystal grain of refinement workpiece surface make surface structure closely, level and smooth, lifting workpieces next step Coating film adhesive or strengthen seepage force.
The present invention provides a kind of novel low-cost, high reliability, high efficiency treatment unit and method for steel surface processing of rust removing, the industrialization of steel surface aseptic technic can be promoted, increase product technology content, make it that there is feature that is efficient, energy-saving and environmental protection, there is obvious economic benefit and social benefit.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is high frequency pulse power supply output current wave mode chart of the present invention.
In figure: battery lead plate 1, hook 2, workpiece 3, rust removing solution 4, rust cleaning cell body 5, power supply 6, dividing plate 7.
Embodiment
As in Fig. 1, a kind of high-frequency impulse low-temperature quick derusting device, comprise the rust cleaning cell body 5 for holding rust removing solution 4 and workpiece, be also provided with the battery lead plate 1 be communicated with workpiece 3, battery lead plate 1 is electrically connected with power supply 6.Structure thus, is energized, significantly can reduces the time of rust cleaning, and reduce the proportioning of acid in rust removing solution 4 while to workpiece rust cleaning.And can the crystal grain of refinement workpiece surface make surface structure closely, level and smooth, lifting workpieces next step Coating film adhesive or strengthen seepage force.
Preferably, described battery lead plate 1 is positioned at above rust cleaning cell body 5, and does not contact with rust removing solution 4.Structure thus, reduces the requirement for battery lead plate 1 material, and certainly, being immersed in by battery lead plate is also feasible in rust removing solution 4.
Preferred further, described workpiece 3 is connected by the coupling device conducted electricity with between battery lead plate 1; Described coupling device comprises hook, conductive clip and wire.Adopt the hook of conduction to hang workpiece in this example, the battery lead plate in this example adopts 304 stainless steel plates, battery lead plate every square metre welding 15-40 hook.
Preferably, be also provided with dividing plate 7 in described rust cleaning cell body 5, dividing plate is provided with multiple through hole.Dividing plate 7 in this example adopts PP sheet material to make, and on dividing plate, the distribution density in hole is 20 every square metre.
Preferably as shown in Figure 2, described power supply 6 output current scope is 30 ~ 400A, frequency 0 ~ 30kHz, and namely power supply can alternately export alternating-current and direct current, and the circuit of this power supply is that prior art is obtainable, repeats no more here.
Preferred further, described power supply 6 is for exchanging or direct current output, and output current scope is 30 ~ 200A, frequency 0 ~ 15kHz.
Preferred further, described power supply 6 is for exchanging or direct current output, and output current scope is 30 ~ 100A, frequency 10 ~ 25kHz.
Adopt a method for above-mentioned device quick derusting, comprise the following steps:
One, configure rust removing solution to insert in rust cleaning cell body 5, the proportioning of rust removing solution is the 36%wtHCl of massfraction 3 ~ 13%, the 98%wtH of 2 ~ 7%
2sO
4, 3 ~ 6% Na
3pO
4, surplus is water;
Preferably, the proportioning of rust removing solution is the 36%wtHCl of massfraction 8 ~ 10%, the 98%wtH of 3 ~ 6%
2sO
4, 4 ~ 5% Na
3pO
4, surplus is water.
Two, two electrode plate 1 are communicated with the two poles of the earth of power supply, after workpiece 3 is communicated with two electrode plate 1 respectively, is placed in rust cleaning cell body 5 and immerses rust removing solution;
Three, power-on 6, output current scope 30 ~ 400A, frequency 0 ~ 30kHz, rust cleaning time 3 ~ 5min;
Preferably, the output current scope of power supply 6 is 30 ~ 80A, frequency 0 ~ 15kHz.
Preferred further, power supply 6 adopts alternating current-direct current alternately to export, and wherein the alternating-current pulse time is 1 ~ 2min, and frequency is 7-30kHz, direct current time 0.5 ~ 1min, as shown in Figure 2.
Preferred further, power supply 6 adopts alternating current-direct current alternately to export, and wherein the alternating-current pulse time is 1 ~ 2min, and frequency is 7-15kHz, direct current time 0.5 ~ 1min, as shown in Figure 2.
The quick derusting of workpiece is realized by above-mentioned steps.Method of the present invention in acid cleaning process without the need to heating, hydrochloric acid volatile disadvantage when avoiding sulfuric acid and mixed in hydrochloric acid heating pickling.
Embodiment 1:
The 36%wtHCl of massfraction 9%, the 98%wtH of 3% is prepared in rust cleaning cell body 5 in above-mentioned device
2sO
4, 5% Na
3pO
4, surplus is the rust removing solution of water.Every electrode plate 1 hangs with the 50# angle steel that 15 root timber matter are Q235, power-on 6, current value 50A, frequency 8kHz, rust cleaning time 5min.
Embodiment 2:
The 36%wtHCl of massfraction 13%, the 98%wtH of 5% is prepared in rust cleaning cell body 5 in above-mentioned device
2sO
4, 6% Na
3pO
4, surplus is the rust removing solution of water.Every electrode plate 1 hangs with the 50# angle steel that 15 root timber matter are Q235, power-on 6, current value 50A, frequency 25kHz, rust cleaning time 4.8min.
Embodiment 3:
The 36%wtHCl of massfraction 13%, the 98%wtH of 5% is prepared in rust cleaning cell body 5 in above-mentioned device
2sO
4, 6% Na
3pO
4, surplus is the rust removing solution of water.Every electrode plate 1 hangs with the 50# angle steel that 15 root timber matter are Q235, power-on 6, range of current 200A, frequency 30kHz, rust cleaning time 3.2min.Increase electric current and frequency can effectively reduce the rust cleaning time.
Embodiment 4:
The 36%wtHCl of massfraction 3%, the 98%wtH of 2% is prepared in rust cleaning cell body 5 in above-mentioned device
2sO
4, 3% Na
3pO
4, surplus is the rust removing solution of water.Every electrode plate 1 hangs with the 50# angle steel that 15 root timber matter are Q235, power-on 6, range of current 400A, frequency 30kHz, rust cleaning time 5min.When acid concentration reduces, need higher electric current and frequency.
Embodiment 5:
The 36%wtHCl of massfraction 10%, the 98%wtH of 6% is prepared in rust cleaning cell body 5 in above-mentioned device
2sO
4, 6% Na
3pO
4, surplus is the rust removing solution of water.Every electrode plate 1 hangs with the 50# angle steel that 15 root timber matter are Q235, power-on 6, and power supply 6 adopts alternating current-direct current alternately to export, current value 80A, and wherein the alternating-current pulse time is 1 ~ 2min, and frequency is 10kHz, direct current time 0.5 ~ 1min, rust cleaning time 3.5min.The pattern adopting alternating current-direct current alternately to export, also can shorten the rust cleaning time, and suitably can reduce current value.
Claims (3)
1. adopt a method for high-frequency impulse low-temperature quick derusting device quick derusting, comprise the rust cleaning cell body (5) for holding rust removing solution (4) and workpiece, be also provided with the battery lead plate (1) be communicated with workpiece (3), battery lead plate (1) is electrically connected with power supply (6); It is characterized in that comprising the following steps:
One, configure rust removing solution to insert in rust cleaning cell body (5), the proportioning of rust removing solution is the 36%wtHCl of massfraction 3 ~ 13%, the 98%wtH of 2 ~ 7%
2sO
4, 3 ~ 6% Na
3pO
4, surplus is water;
Two, after workpiece (3) is communicated with battery lead plate (1), is placed in rust cleaning cell body (5) and immerses rust removing solution;
Three, power-on (6), outward current 30 ~ 400A, frequency 0 ~ 30kHz,
Power supply (6) adopts alternating current-direct current alternately to export, and wherein the alternating-current pulse time is 1 ~ 2min, direct current time 0.5 ~ 1min;
Wherein exporting alternating current scope is 30 ~ 400A, frequency 8 ~ 30kHz;
The quick derusting of workpiece is realized by above-mentioned steps.
2. a kind of quick derusting method according to claim 1, is characterized in that: the output current scope of power supply (6) is 30 ~ 80A, frequency 0 ~ 15kHz.
3. a kind of quick derusting method according to claim 1, is characterized in that: the proportioning of rust removing solution is the 36%wtHCl of massfraction 8 ~ 10%, the 98%wtH of 4 ~ 6%
2sO
4, 4 ~ 5% Na
3pO
4, surplus is water.
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| CN201310284158.1A CN103343381B (en) | 2013-07-08 | 2013-07-08 | A kind of high-frequency impulse low-temperature quick derusting device and method |
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| CN103343381B true CN103343381B (en) | 2016-04-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104611759B (en) * | 2015-02-12 | 2017-03-08 | 广州市精源电子设备有限公司 | Variable Polarity pulse pickling control method |
| CN110067160A (en) * | 2019-06-12 | 2019-07-30 | 智合高新科技(辽宁)有限公司 | Electromagnetic pulse device and its application method for railway track derusting |
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| US4795537A (en) * | 1987-04-10 | 1989-01-03 | H.P.G. Research Ltd. | Electrical conditioning system for electrodes in an electrolysis cell |
| CN101052752A (en) * | 2004-07-19 | 2007-10-10 | 西门子Vai金属科技有限责任公司 | Method and device for processing acid washing to metal |
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| CN1051765A (en) * | 1989-11-12 | 1991-05-29 | 李葵荣 | Rare earth-urge aluminising |
| CN2174484Y (en) * | 1993-05-07 | 1994-08-17 | 官春雨 | Non-etching electronic rust-removing apparatus |
| JPH08337898A (en) * | 1995-06-08 | 1996-12-24 | Taiho Ind Co Ltd | Electrolytic polishing method and electrolytic polishing device for metallic surface |
| CN2249252Y (en) * | 1995-09-21 | 1997-03-12 | 高福麒 | Electroacoustic quickly rust-removing device |
| JP4189053B2 (en) * | 1998-04-08 | 2008-12-03 | 新日本製鐵株式会社 | High speed electrolytic descaling method for stainless steel |
| JP2001191108A (en) * | 2000-01-04 | 2001-07-17 | Hitachi Ltd | Descaling method and device for the same |
| CN1131341C (en) * | 2000-03-16 | 2003-12-17 | 大连金牛股份有限公司 | Process for scaling on alloy steel surface |
| KR20060009930A (en) * | 2003-05-12 | 2006-02-01 | 알케마 인코포레이티드 | High purity electrolytic sulfonic acid solutions |
| CN102618912A (en) * | 2012-04-06 | 2012-08-01 | 柳州市红日焊丝制造有限公司 | Surface treatment process method before wiredrawing of welding wire |
| CN103074666B (en) * | 2012-08-28 | 2015-08-26 | 无锡源清高新技术研究所有限公司 | A kind of electrolytic derusting agent and electrolytic derusting method |
| CN203320175U (en) * | 2013-07-08 | 2013-12-04 | 湖北交投四优钢科技有限公司 | High-frequency pulse low temperature rapid rust removal device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795537A (en) * | 1987-04-10 | 1989-01-03 | H.P.G. Research Ltd. | Electrical conditioning system for electrodes in an electrolysis cell |
| CN101052752A (en) * | 2004-07-19 | 2007-10-10 | 西门子Vai金属科技有限责任公司 | Method and device for processing acid washing to metal |
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