CN2148766Y - Metal prolduct surface electrochemical continuous pretreating apparatus - Google Patents
Metal prolduct surface electrochemical continuous pretreating apparatus Download PDFInfo
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- CN2148766Y CN2148766Y CN 92237004 CN92237004U CN2148766Y CN 2148766 Y CN2148766 Y CN 2148766Y CN 92237004 CN92237004 CN 92237004 CN 92237004 U CN92237004 U CN 92237004U CN 2148766 Y CN2148766 Y CN 2148766Y
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- tank
- battery lead
- lead plate
- pickling tank
- brush
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Abstract
The utility model relates to a metal product surface electrochemical continuous preprocessing apparatus widely used for the preprocess before process the surfaces of the metallic wire and the metallic strip. The metal product surface electrochemical continuous preprocessing apparatus is formed by an electrochemical loop by the connection in series of an oil removing groove, a pickling tank, conducting rollers, an electrode plate, electric conduction rollers, an electric brush, electrical cables, a direct current rectifier, an ammeter, etc. The metal product surface electrochemical continuous preprocessing apparatus is characterized in that the direct current rectifier, a set of electric conduction rollers and the electric brush are adopted; a variable-resistance box R, the ammeter An and a select switch K are connected in series between the electric brush and the direct current rectifier in the sequence of R, A, K. The utility model has the advantages of simple structure, small volume, low cost, convenient maintenance, and corrosion and abrasion resistance.
Description
The utility model relates to a kind of device with the continuous metal pretreated product surface of electrochemical process, and it is widely used in metal wire and strip surface is handled preceding pre-treatment.
Metal wire and band are in the preceding pre-treatment that must remove its surface and oil contaminant and oxide film of surface treatment (plating, plastic-coated, plated film etc.).Pre-treatment generally divides two kinds of chemical method and electrochemical processes.In electrochemical process, the continuous pretreated suitability for industrialized production in metal products surface adopts the associating electrochemical process of negative electrode oil removing and anodic acid pickling to carry out pre-treatment more.Traditional technology is that two groups of dc rectifiers of employing are respectively the negative electrode degreasing tank and the anodic acid pickling groove provides electric current, constitutes two independently electrochemistry loops.Because adopt two groups of rectifiers to make power supply, floor space is big; Two independent electrochemistry loops that constitute, in order to make rectifier energy normal power supply, electrolyzer in each loop needs two groups of conductive rollers at least, if trough is long, when processing metal products amount is big, also will add 1～3 group of conductive rollers in tank liquor, each conductive rollers also needs 1～2 group of brush, the usage quantity of conductive rollers and brush is big, makes circuit structure and distribution facility complexity, and they are to adopt copper production, cost an arm and a leg (2000 yuan/root) the cost height.Copper conductive rollers and brush with the back in the electrolyzer are easily corroded by electrolytic solution, and serious wear, make maintenance capacity and maintenance cost very big, safeguard very inconvenient.
In view of the problem of above-mentioned existence, the purpose of this utility model is to design a kind of circuit structure and distribution facility is simple, floor space is little, cost is low, corrosion-resistant, wear-resistant, maintenance capacity and the maintenance cost continuous pretreatment unit of metal products surface electrochemistry low, easy to maintenance.
For realizing this purpose, the technical measures that the utility model is taked and the positively effect of generation are: adopt one group of dc rectifier in (1) device, with cable its anode and negative electrode are directly linked to each other with battery lead plate in the pickling tank with degreasing tank, two electrolyzers are connected into an electrochemistry loop.Battery lead plate is equally distributed in each groove, and therefore the electric current that is sent on the goods by electrolytic solution also is uniform.Under electrolytic solution conduction good state, discharged the situation that does not add electric current from rectifier, so just can cancel distribution facilities such as conductive rollers more than 3/4ths, brush.Only (after the washing bath) is provided with one group of conductive rollers and brush is just passable between two electrolyzers, this has simplified the structure and the distribution facility of pretreatment unit greatly, floor space is little, and cost is low, has also avoided copper conductive rollers, brush (material cupric) etc. to contact with electrolytic solution simultaneously, no etching problem, though increased the conduction roller, because of the conduction roller adopts porcelain roller, not only corrosion-resistant but also wear-resistant, price is very cheap, has significantly reduced the cost and the maintenance cost of device.(2), on the line between brush and the dc rectifier, press each of order series connection variable resistance box R, reometer A, the system selector switch K of R, A, K for of the variation of flexible technology to current requirements.
Introduce technology contents of the present utility model in detail below in conjunction with drawings and Examples.
Accompanying drawing is the continuous pretreatment unit of the utility model metal products surface electrochemistry.
As shown in drawings, metal prolduct surface electrochemical continuous pretreating apparatus is by (2) dc rectifier, (3) conductive rollers, (4) brush, (5) cable, (6,6 ') battery lead plate, (7) conduction roller, (8) oil removing electrolytic cell, (9) rinsing bowl, (10) descaling bath, (R) variable resistance box, (K) selector switch, (A, A1、A
2) ammeter etc. forms.
The utility model metal prolduct surface electrochemical continuous pretreating apparatus only adopts a dc rectifier (2), and AC power is transformed into dc source, is respectively two electrolytic cells (8) and (10) electric energy is provided. Degreasing tank (8) is located at the right of device, and descaling bath (10) is located at the left side of device, and rinsing bowl (9) is located between two electrolytic cells (8,10). Each evenly arranges 7 (stainless steels) and 6 (plumbous system) battery lead plates (6 and 6 ') in degreasing tank (8) and the descaling bath (10). Two conduction rollers (7) are respectively established at degreasing tank (8) and interior two of descaling bath (10) (battery lead plate both sides). Rinsing bowl (9) before in the front of degreasing tank (8), after it, descaling bath (10) respectively establishes a conduction roller (7) afterwards, rinsing bowl (9) afterwards descaling bath (10) establish before one group of conductive rollers (3) (copper) and brush (4) (graphite and copper conductor system), the line between brush (4) and dc rectifier (2) is pressed each of order series connection upper variable resistance box R, ammeter A, the selector switch K of R, A, K. The anode (S) of dc rectifier (2) and negative electrode (N) pass through respectively ammeter (A with cable (5)2) and (A1) link to each other with battery lead plate (6 and 6 ') in the descaling bath (10) with degreasing tank (8). Metallic article (1) is moved to the left side by device the right by conduction roller (7) and conductive rollers (3), by electrolyte in two grooves two electrolytic cells (8,10) is connected into an electrochemistry loop. Water in the rinsing bowl (9) is perennial draingage. Electrolyte in the degreasing tank (8) adopts NaOH, Na2O
3Deng alkaline solution, other adds an amount of surfactant (or emulsifying agent), to improve deoiling effect. Electrolyte in the descaling bath (10) adopts the acid solutions such as sulfuric acid, hydrochloric acid, and other adds an amount of corrosion inhibiter, to prevent that acid solution is to the corrosion of metallic article matrix. Electrolyte in two grooves is hot best, is convenient to react the dissolving of rear product.
Operating principle and the process of the utility model metal prolduct surface electrochemical continuous pretreating apparatus are as follows: the continuous pretreating process of metallic article surface electrochemistry requires the metallic article (1) in the oil removing electrolytic cell (8) to be negative, apply certain electric current and carry out oil removal treatment, and require the metallic article (1) in the descaling bath (10) to be positive, under certain electric current, remove metal oxide film and activated metal product surface. Battery lead plate (6) in the oil removing electrolytic cell (8) is linked to each other with negative electrode (N) with the anode (S) of dc rectifier (2) respectively with battery lead plate (6 ') in the descaling bath (10), between rinsing bowl (9) and descaling bath (10), establish one group of conductive rollers (3) and brush (4), be used for metallic article (1) and electric power generating composition path, play electric action. Between brush (4) and dc rectifier (2) series connection a upper variable resistance box R, ammeter A, selector switch K, be used for the flexible modulation electric current to adapt to technological requirement. Metallic article (1) has formed an electrochemistry loop by the electrolyte in two electrolytic cells and whole device. Metallic article this moment (1) is negative electrode in degreasing tank (8), is anode in descaling bath (10), thereby has reached the basic demand of technique.
Metal products (1) is imported from the right of device by the conduction roller (7) of degreasing tank (8) front, at first enters degreasing tank (8), comes out from degreasing tank (8) through battery lead plate (6) in the degreasing tank (8) and conduction roller (7).In degreasing tank (8), metal products (1) is by electrolytic solution, utilizes the potential difference of itself and battery lead plate (6), makes the current potential of goods (1) be lower than the current potential of battery lead plate (6), and metal products (1) is a negative electrode, and battery lead plate (6) is an anode.Alkaline electrolyte in the degreasing tank (8) produces chemical action to the greasy dirt on metal products (1) surface, and saponification reaction takes place:
That is to say the saponification reaction that glyceryl stearate in the lip-deep vegetable and animals oils of metal products (1) and sodium hydroxide take place, it makes original water-fast grease become the soap of water soluble (particularly hot water) and glycerine and is removed.Simultaneously, evolving hydrogen reaction (cathodic reaction) has taken place in product surface under galvanic action, and reaction formula is:
The hydrogen gas bubbles that is produced becomes greatly gradually, oil film is torn from article inner surface taken on the liquid level, and solution is played the emulsification stirring action, has quickened greasy dirt and has broken away from the speed of product surface, removes product surface smeary purpose thereby reach.
After metal products (1) comes out from degreasing tank (8), enter washing bath (9) through conduction roller (7), alkali lye with metal products (1) surface in washing bath (9) rinses out, two the conduction rollers (7) that pass through again in the washing bath (9) come out from washing bath (9), enter pickling tank (10) through conductive rollers (3).In pickling tank (10), the current potential of metal products is higher than the current potential of battery lead plate (6 ') in its groove, and metal products (1) is an anode, and battery lead plate (6 ') is a negative electrode, carries out oxygen evolution reaction (anodic reaction) on metal products (1) surface, and reaction formula is:
The oxygen that is produced plays the effect of peeling off to the oxide film on metal products (1) surface.In addition, acids solution plays the chemical erosion effect to the oxide film on metal products (1) surface, and reaction formula is:
The oxide compound of iron and acid-respons generate water-soluble salt, and simultaneously, iron also can be separated out hydrogen with the acid effect:
Separating out of hydrogen can be reduced into iron at a low price to high price iron, help the dissolving of oxide compound, but therefore separating out and can cause the excessive erosion of goods and oozing hydrogen of hydrogen will add inhibiter in acid solution.
Metal products (1) comes out from pickling tank (10) through conduction roller (7) and the battery lead plate (6 ') in the groove, through the left side output of conduction roller (7) by device, enters next procedure again.
For the variation (mainly being the variation of electric current) of satisfying technical data, when metal products (1) when surface and oil contaminant is big, owing to be difficult to remove, this electric current that just requires to impose on degreasing tank (8) is higher, so at this moment system selector switch K can be dialled the utmost point, press the required electric current of degreasing tank (8) then and (use the electric current Table A to N
2Measure) provide total current, again according to reometer (A
1) pointer regulates the resistance R of variable resistance box, makes the electric current of pickling tank (10) remain on required rated value, vice versa.When processing requirement two groove equivalent times, system selector switch K dialled to the O position get final product.
Embodiment
With diameter is that 20 steel wires of 2mm carry out pre-treatment with the continuous pretreatment unit of metal products surface electrochemistry of the present utility model before the electro-coppering operation.
Alkaline solution composition in the degreasing tank (8) is:
Sodium hydroxide 20g/l, yellow soda ash 20g/l, surfactant (OP-10 alkyl phenyl polyoxy ethyl ether) 1.5g/l.
Temperature in the degreasing tank is 55 ℃ ± 5 ℃.
Current density is 15A/dm
2
Required total current is 942A.
Acid solution composition in the pickling tank (10) is:
Sulfuric acid 165g/l, sodium-chlor 100g/l, inhibiter (hexamethylenetetramine) 4g/l.
Temperature in the pickling tank (10) is 45 ℃ ± 5 ℃.
Current density is 10A/dm
2,
Required total current is 502.4A.
System selector switch K is dialled the utmost point to N, and providing total current from dc rectifier (2) is 924A, regulates variable resistance box R then, makes reometer A
1Pointed 502.4A, can satisfy the current requirements of two electrolyzers (8) and (10) simultaneously like this.
Steel wire is through after the pre-treatment, and the result has satisfied the requirement of electro-coppering operation to Steel Wire Surface fully, does not have oily, rustless, inclusion-free, makes steel wire expose fresh activatory surface.
Claims (1)
1, the continuous pretreatment unit of a kind of metal products surface electrochemistry, it is by (7 of (2) dc rectifiers, (3) conductive rollers (copper), (4) brush (graphite and copper conductor system), (5) cable, (6) battery lead plate, stainless steel), (6 ') battery lead plate (6, plumbous system), (7) conduction roller (porcelain system), (8) degreasing tank (interior harness has the basic solution of certain temperature), (9) washing bath (interior dress perennial draingage), (10) pickling tank (interior harness has the acidic solution of certain temperature), (A
1, A
2) the reometer composition, degreasing tank (8) is located at the right of device, pickling tank (10) is located at the left side of device, washing bath (9) is located between two electrolyzers (8) and (10), battery lead plate (6) and (6 ') are evenly arranged in respectively within degreasing tank (8) and the pickling tank (10), a conduction roller (7) is respectively established at two in degreasing tank (8), washing bath (9), pickling tank (10) (both sides of battery lead plate (6) and (6 ')), metal products (1) is to move to the left side from the right of device, its during by electrolytic solution and whole device be to be connected into an electrochemistry loop; It is characterized in that:
A) only establish a dc rectifier (2) in the device, its N (the moon) utmost point and S (sun) utmost point are by reometer A
1And A
2Use cable (5) and pickling tank (10) to link to each other with (6) respectively with battery lead plate (6 ') in the degreasing tank (8),
B) only establish one group of conductive rollers (3) and brush (4) between washing bath (9) and pickling tank (10),
C) in the front of degreasing tank (8), thereafter washing bath (9) before, pickling tank (10) respectively establish afterwards one the conduction roller (7),
D) on the line between brush (4) and the dc rectifier (2), press each one of order series connection variable resistance box R, reometer A, the system selector switch K of R, A, K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92237004 CN2148766Y (en) | 1992-11-04 | 1992-11-04 | Metal prolduct surface electrochemical continuous pretreating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92237004 CN2148766Y (en) | 1992-11-04 | 1992-11-04 | Metal prolduct surface electrochemical continuous pretreating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2148766Y true CN2148766Y (en) | 1993-12-08 |
Family
ID=33778362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92237004 Expired - Fee Related CN2148766Y (en) | 1992-11-04 | 1992-11-04 | Metal prolduct surface electrochemical continuous pretreating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2148766Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187052B (en) * | 2006-11-22 | 2011-09-21 | 辛永议 | Plating device |
| CN102251269A (en) * | 2011-08-19 | 2011-11-23 | 杭州银都餐饮设备有限公司 | Electrochemical surface treatment device |
| CN102713023A (en) * | 2009-09-30 | 2012-10-03 | 特诺恩股份公司 | Surface preparation unit for metal strips processing lines |
| CN103305896A (en) * | 2012-03-07 | 2013-09-18 | 昆山东威电镀设备技术有限公司 | Continuous-electroplating liquid conduction apparatus and continuous liquid electroplating method |
| CN103820831A (en) * | 2014-02-13 | 2014-05-28 | 德清县佳伟线缆有限公司 | Electroplating processing equipment for metal wires |
| CN103820830A (en) * | 2014-02-13 | 2014-05-28 | 德清县佳伟线缆有限公司 | Wire electroplating equipment |
| CN110616448A (en) * | 2019-10-14 | 2019-12-27 | 南京航空航天大学 | Electrochemical pretreatment-in-situ electrodeposition method |
-
1992
- 1992-11-04 CN CN 92237004 patent/CN2148766Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187052B (en) * | 2006-11-22 | 2011-09-21 | 辛永议 | Plating device |
| CN102713023A (en) * | 2009-09-30 | 2012-10-03 | 特诺恩股份公司 | Surface preparation unit for metal strips processing lines |
| CN102713023B (en) * | 2009-09-30 | 2015-12-16 | 特诺恩股份公司 | For the surface preparation unit of sheet metal strip processing line |
| CN102251269A (en) * | 2011-08-19 | 2011-11-23 | 杭州银都餐饮设备有限公司 | Electrochemical surface treatment device |
| CN103305896A (en) * | 2012-03-07 | 2013-09-18 | 昆山东威电镀设备技术有限公司 | Continuous-electroplating liquid conduction apparatus and continuous liquid electroplating method |
| CN103305896B (en) * | 2012-03-07 | 2015-09-09 | 昆山东威电镀设备技术有限公司 | Continuous electroplating liquid conduction device and continuous liq electro-plating method |
| CN103820831A (en) * | 2014-02-13 | 2014-05-28 | 德清县佳伟线缆有限公司 | Electroplating processing equipment for metal wires |
| CN103820830A (en) * | 2014-02-13 | 2014-05-28 | 德清县佳伟线缆有限公司 | Wire electroplating equipment |
| CN103820830B (en) * | 2014-02-13 | 2016-08-17 | 德清县佳伟线缆有限公司 | A kind of wire material electroplating equipment |
| CN110616448A (en) * | 2019-10-14 | 2019-12-27 | 南京航空航天大学 | Electrochemical pretreatment-in-situ electrodeposition method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |