CN103132122A - Steel wire on-line normal-temperature electrolytic phosphatization method - Google Patents
Steel wire on-line normal-temperature electrolytic phosphatization method Download PDFInfo
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- CN103132122A CN103132122A CN2011103718636A CN201110371863A CN103132122A CN 103132122 A CN103132122 A CN 103132122A CN 2011103718636 A CN2011103718636 A CN 2011103718636A CN 201110371863 A CN201110371863 A CN 201110371863A CN 103132122 A CN103132122 A CN 103132122A
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Abstract
The invention relates to a steel wire on-line normal-temperature electrolytic phosphatization method which comprises the following steps: firstly performing surface cleaning of heat-treated steel wires by an electrolytic acid method, and performing electrolytic phosphatization of the steel wires at normal temperature. The invention provides an energy-saving, low-carbon, green, environment-friendly steel wire on-line normal-temperature electrolytic phosphatization method; when compared with the prior art, the method of the invention has the advantages of less time consumption, high efficiency, no phosphate sediment generation, no heating requirement, realizability at normal temperature, and the like.
Description
Technical field
The present invention relates to metal products deep-draw processing technique field, be specifically related to the online normal temperature electrolytic phosphating method of steel wire.
Background technology
In metal products deep-draw processing industry, in order to obtain the steel wire of certain specification and intensity rank, need through the multiple tracks treatment process.Wherein, in wire rod cogging technics link, traditional method adopts:
A, carry out acidifying, remove the panel surface zone of oxidation;
B, water rinse;
C, middle temperature are soaked phosphatization, and wherein temperature is not less than 70 ℃, and soak time is 5-10 minute;
D, water rinse;
E, saponification;
F, steel wire drawing;
G, isothermal quenching thermal treatment;
H, the process wire after thermal treatment is repeated to the A-B-C-D-E-F step, further carry out deep-draw processing.
Visible, traditional steel wire middle temperature phosphating method is not only consuming time but also consume power, and its phosphating time needed is generally more than 60 seconds, and requirement is controlled at more than 70 ℃ the temperature of soaking phosphatization, can produce a large amount of objectionable impuritiess such as phosphoric acid salt sediment, the discharge meeting of objectionable impurities causes severe contamination to environment.
Summary of the invention
The object of the present invention is to provide the online normal temperature electrolytic phosphating method of a kind of steel wire, in soaking parkerizing process, without heating, can realize under normal temperature, and can not produce the phosphoric acid salt sediment.Parkerizing process than traditional method is compared, and the present invention shortens phosphating time greatly, only needs 10 seconds.
In order to realize the foregoing invention purpose, the online normal temperature electrolytic phosphating method of steel wire provided by the invention adopts following technical characterictic:
A, to carrying out the surface cleaning processing through heat treated steel wire, by the zone of oxidation of electrolysis acid system eccysis Steel Wire Surface, the acid solution water of Steel Wire Surface remnants is rinsed well;
B, steel wire is carried out to surface activation process, will be fully exposed except the steel wire base of surface oxide layer through the surface cleaning Treatment of Washing, with the oxalic acid aqueous solution effect of 8%-12% lower concentration, producing the polarization surface can;
C, steel wire is carried out to the electrolytic phosphating processing, to discuss and import reposefully cathode electrolytic cell by cathode wire through the steel wire of surface active, effect generation negative electrode phosphoric acid salt polarization by the pulse direct current electric current, make insoluble phosphoric acid salt be deposited on securely Steel Wire Surface.
In step C, according to the thickness of the required phosphorus layer of Steel Wire Drawing Process, implement the control to the steel wire cathode current density, guarantee that the phosphorus layer at least can reach 8g/m within 10 seconds
2above.
The invention provides the online normal temperature electrolytic phosphating method of steel wire of a kind of energy-conservation, low-carbon (LC), environmental protection, with the conventional phosphatizing method, compare, the present invention have consuming time short, efficiency is high, do not produce the phosphoric acid salt sediment, without heating normal temperature, can realize etc. referring to following table by progressive.
The accompanying drawing explanation
Fig. 1 is the online normal temperature electrolytic phosphating method of a kind of steel wire provided by the invention schematic diagram.
Fig. 2 is the online normal temperature electrolytic phosphating method of a kind of steel wire provided by the invention schema.
Identifier declaration:
1-cathode wire wheel; The major-minor negative electrode of 2-; The 3-electrolyzer; The 4-Lower tank; 5-impulse commutation system; The 6-current control system; The 7-overflow control device; The 8-liquid pump.
Specific implementation method
Below in conjunction with drawings and Examples, technical scheme of the present invention is done to further clear, complete description, with explanation, the present invention meets novelty, creativeness and the practicality that patent law requires fully.What it should be noted that embodiment describes is a part of embodiment of the present invention, can not be for limiting the scope of the invention.
Embodiment 1
The invention provides a kind of normal temperature electrolytic phosphating method of steel wire, the steps include:
Steps A: to through heat treated steel wire, carrying out surface treatment.Remove Steel Wire Surface oxide skin by electrolytic pickling, this method is removed descaling more thoroughly totally than mechanical, and plays the effect of activation Steel Wire Surface, increase activation energy.Electrolytic pickling liquid adopts the sulfuric acid that concentration is 10%, and how much judges the size that applies electric current according to Steel Wire Surface oxide skin, and the sour water of Steel Wire Surface remnants is rinsed and does clearly, then carries out the Steel Wire Surface activation treatment.
Step B: surface activation process is the critical process of steel wire normal temperature electrolytic phosphating, and the present invention has adopted oxalic acid solution that concentration is 8% as activator, impels Steel Wire Surface to form the activation nucleus of the tiny densification of multinuclear within 5 seconds.
Step C: import in the electrolytic phosphating groove through the steel wire of surface active, under normal temperature condition, by anticathode, apply certain electric current, just can within 10 seconds, obtain that the whole Steel Wire Surface of covering are complete, phosphatize phosphate coat firmly.Obtain 8g/m if need
2the phosphatize phosphate coat of above thickness, can regulate the size that applies electric current according to heat treated linear velocity.
For example, in step C, if implement, to steel wire diameter, be
carry out the normal temperature electrolytic phosphating, and heat treated linear velocity is 12m/min, needs to obtain phosphatize phosphate coat thickness and reach 8g/m
2above, the electric current that is applied to steel wire (negative electrode) is 150mA.
As shown in Figure 1, the normal temperature electrolytic phosphating of implementation step C, bottom nickel in its electrolyzer 3, lead alloy and impulse commutation system 5, the anode of current control system 6 is connected, wherein, main electrode is the nickel metal, auxiliary electrode is lead metal, under the startup of liquid pump 8, normal temperature electrolytic phosphating liquid injects rapidly electrolytic phosphating groove 3, guarantee that the steel wire be imported into all is immersed in below liquid level 2cm, regulating overflow control 6 makes the Phosphating Solution overflow in Lower tank 4, then steel wire is taken turns to 1 by cathode wire and enter electrolyzer 3, open impulse commutation system 5 and apply pulsed current by 2 pairs of steel wires of major-minor negative electrode, regulate current control system 6 according to heat treated linear velocity and obtain 8g/m
2the phosphatize phosphate coat of above thickness.
The invention provides a kind of normal temperature electrolytic phosphating method of steel wire, the steps include:
Steps A: to through heat treated steel wire, carrying out surface treatment.Remove Steel Wire Surface oxide skin by electrolytic pickling, this method is removed descaling more thoroughly totally than mechanical, and plays the effect of activation Steel Wire Surface, increase activation energy.Electrolytic pickling liquid adopts the sulfuric acid that concentration is 10%, and how much judges the size that applies electric current according to Steel Wire Surface oxide skin, and the sour water of Steel Wire Surface remnants is rinsed and does clearly, then carries out the Steel Wire Surface activation treatment.
Step B: surface activation process is the critical process of steel wire normal temperature electrolytic phosphating, and the present invention has adopted oxalic acid solution that concentration is 10% as activator, impels Steel Wire Surface to form the activation nucleus of the tiny densification of multinuclear within 5 seconds.
Step C: import in the electrolytic phosphating groove through the steel wire of surface active, under normal temperature condition, by anticathode, apply certain electric current, just can within 10 seconds, obtain that the whole Steel Wire Surface of covering are complete, phosphatize phosphate coat firmly.Obtain 8g/m if need
2the phosphatize phosphate coat of above thickness, can regulate the size that applies electric current according to heat treated linear velocity.
In step C, if implement, to steel wire diameter, be
carry out the normal temperature electrolytic phosphating, and heat treated linear velocity is 15m/min, needs to obtain phosphatize phosphate coat thickness and reach 8g/m
2above, the electric current that is applied to steel wire (negative electrode) is 120mA.
As shown in Figure 1, the normal temperature electrolytic phosphating of implementation step C, bottom nickel in its electrolyzer 3, lead alloy and impulse commutation system 5, the anode of current control system 6 is connected, wherein, main electrode is the nickel metal, auxiliary electrode is lead metal, under the startup of liquid pump 8, normal temperature electrolytic phosphating liquid injects rapidly electrolytic phosphating groove 3, guarantee that the steel wire be imported into all is immersed in below liquid level 2cm, regulating overflow control 6 makes the Phosphating Solution overflow in Lower tank 4, then steel wire is taken turns to 1 by cathode wire and enter electrolyzer 3, open impulse commutation system 5 and apply pulsed current by 2 pairs of steel wires of major-minor negative electrode, regulate current control system 6 according to heat treated linear velocity and obtain 8g/m
2the phosphatize phosphate coat of above thickness.
The invention provides a kind of normal temperature electrolytic phosphating method of steel wire, the steps include:
Steps A: to through heat treated steel wire, being carried out surface treatment.Remove Steel Wire Surface oxide skin by electrolytic pickling, this method is removed descaling more thoroughly totally than mechanical, and plays the effect of activation Steel Wire Surface, increase activation energy.Electrolytic pickling liquid adopts the sulfuric acid that concentration is 12%, and how much judges the size that applies electric current according to Steel Wire Surface oxide skin, and the sour water of Steel Wire Surface remnants is rinsed and does clearly, then carries out the Steel Wire Surface activation treatment.
Step B: surface activation process is the critical process of steel wire normal temperature electrolytic phosphating, and the present invention has adopted oxalic acid solution that concentration is 12% as activator, impels Steel Wire Surface to form the activation nucleus of the tiny densification of multinuclear within 5 seconds.
Step C: import in the electrolytic phosphating groove through the steel wire of surface active, under normal temperature condition, by anticathode, apply certain electric current, just can within 10 seconds, obtain that the whole Steel Wire Surface of covering are complete, phosphatize phosphate coat firmly.Obtain 8g/m if need
2the phosphatize phosphate coat of above thickness, can regulate the size that applies electric current according to heat treated linear velocity.
In step C, if implement, to steel wire diameter, be
carry out the normal temperature electrolytic phosphating, and heat treated linear velocity is 20m/min, needs to obtain phosphatize phosphate coat thickness and reach 8g/m
2above, the electric current that is applied to steel wire (negative electrode) is 100mA.
As shown in Figure 1, the normal temperature electrolytic phosphating of implementation step C, bottom nickel in its electrolyzer 3, lead alloy and impulse commutation system 5, the anode of current control system 6 is connected, wherein, main electrode is the nickel metal, auxiliary electrode is lead metal, under the startup of liquid pump 8, normal temperature electrolytic phosphating liquid injects rapidly electrolytic phosphating groove 3, guarantee that the steel wire be imported into all is immersed in below liquid level 2cm, regulating overflow control 6 makes the Phosphating Solution overflow in Lower tank 4, thereafter steel wire is taken turns to 1 by cathode wire and enter electrolyzer 3, open impulse commutation system 5 and apply pulsed current by 2 pairs of steel wires of major-minor negative electrode, regulate current control system 6 according to heat treated linear velocity and obtain 8g/m
2the phosphatize phosphate coat of above thickness.
Claims (8)
1. the online normal temperature electrolytic phosphating method of steel wire is characterized in that:
A, to carrying out the surface cleaning processing through heat treated steel wire, by the zone of oxidation of electrolysis acid system eccysis Steel Wire Surface, the acid solution water of Steel Wire Surface remnants is rinsed well;
B, steel wire is carried out to surface activation process, will be fully exposed except the steel wire base of surface oxide layer through the surface cleaning Treatment of Washing, with the oxalic acid aqueous solution effect of lower concentration, producing the polarization surface can;
C, steel wire is carried out to the electrolytic phosphating processing, will import cathode electrolytic cell by guide roller through the steel wire of surface active, the effect generation negative electrode phosphoric acid salt polarization by the pulse direct current electric current, make insoluble phosphoric acid salt be deposited on securely Steel Wire Surface.
2. method according to claim 1, is characterized in that, the electrolysis acid solution that steps A adopts is the sulphuric acid soln that concentration is 10%.
3. method according to claim 1, is characterized in that, the concentration range of the oxalic acid aqueous solution that step B adopts is 8%-12%.
4. method according to claim 3, is characterized in that, in step B, be 5 seconds the action time of steel wire and oxalic acid solution.
5. method according to claim 1, is characterized in that, when the normal temperature electrolytic phosphating of step C, steel wire is imported in the electrolytic phosphating groove, and steel wire should all be immersed in apart from the degree of depth below liquid level 2cm.
6. method according to claim 1, is characterized in that, in step C, if steel wire diameter is
heat treated linear velocity is 12m/min, needs to obtain phosphatize phosphate coat thickness and reaches 8g/m
2above, the electric current that is applied to steel wire (negative electrode) is 150mA.
7. method according to claim 1, is characterized in that, in step C, if steel wire diameter is
heat treated linear velocity is 15m/min, needs to obtain phosphatize phosphate coat thickness and reaches 8g/m
2above, the electric current that is applied to steel wire (negative electrode) is 120mA.
8. method according to claim 1, is characterized in that, in step C, if steel wire diameter is
heat treated linear velocity is 20m/min, needs to obtain phosphatize phosphate coat thickness and reaches 8g/m
2above, the electric current that is applied to steel wire (negative electrode) is 100mA.
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| CN201110371863.6A CN103132122B (en) | 2011-11-22 | 2011-11-22 | Steel wire on-line normal-temperature electrolytic phosphatization method |
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| CN201110371863.6A CN103132122B (en) | 2011-11-22 | 2011-11-22 | Steel wire on-line normal-temperature electrolytic phosphatization method |
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| CN103132122B CN103132122B (en) | 2015-07-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741195A (en) * | 2013-12-23 | 2014-04-23 | 南通恒新金属工艺科技有限公司 | Steel wire electrolysis and parkerizing device |
| CN105951155A (en) * | 2016-06-01 | 2016-09-21 | 中钢集团郑州金属制品研究院有限公司 | Online double phosphating method for steel wires and continuous production equipment for method |
| CN109056034A (en) * | 2018-08-03 | 2018-12-21 | 南京派诺金属表面处理技术有限公司 | Room temperature electrolytic phosphating process and phosphating solution |
| CN111197163A (en) * | 2018-11-20 | 2020-05-26 | 天津市银丰钢绞线股份有限公司 | Pretreatment process of steel strand |
Citations (4)
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|---|---|---|---|---|
| EP0340530A1 (en) * | 1988-04-28 | 1989-11-08 | Henkel Kommanditgesellschaft auf Aktien | Titanium-free activating agents, process for preparing them and their use in activating a metal surface before zinc phosphating |
| WO2003042426A2 (en) * | 2001-11-14 | 2003-05-22 | Henkel Kommanditgesellschaft Auf Aktien | Regulation of the accelerator concentration in phosphating baths |
| CN1891865A (en) * | 2005-04-28 | 2007-01-10 | 株式会社电装 | Electrolytic phosphating process |
| CN102061503A (en) * | 2010-11-19 | 2011-05-18 | 江苏巨力钢绳有限公司 | Electrolytic phosphating method for steel wires |
-
2011
- 2011-11-22 CN CN201110371863.6A patent/CN103132122B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0340530A1 (en) * | 1988-04-28 | 1989-11-08 | Henkel Kommanditgesellschaft auf Aktien | Titanium-free activating agents, process for preparing them and their use in activating a metal surface before zinc phosphating |
| US5039362A (en) * | 1988-04-28 | 1991-08-13 | Henkel Kommanditgesellschaft Auf Aktien | Titanium free composition and process for activating metal surfaces prior to zinc phosphating |
| WO2003042426A2 (en) * | 2001-11-14 | 2003-05-22 | Henkel Kommanditgesellschaft Auf Aktien | Regulation of the accelerator concentration in phosphating baths |
| CN1891865A (en) * | 2005-04-28 | 2007-01-10 | 株式会社电装 | Electrolytic phosphating process |
| CN102061503A (en) * | 2010-11-19 | 2011-05-18 | 江苏巨力钢绳有限公司 | Electrolytic phosphating method for steel wires |
Non-Patent Citations (2)
| Title |
|---|
| P. BALA SRINIVASAN等: "Acceleration of ambient temperature phosphating by an electrochemical pulse technique", 《SURFACE AND COATINGS TECHNOLOGY》 * |
| 陈健民: "钢丝磷化质量差异原因浅析", 《金属制品》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741195A (en) * | 2013-12-23 | 2014-04-23 | 南通恒新金属工艺科技有限公司 | Steel wire electrolysis and parkerizing device |
| CN103741195B (en) * | 2013-12-23 | 2016-06-15 | 南通恒新金属工艺科技有限公司 | Electrolytic phosphating of steel wires processes device |
| CN105951155A (en) * | 2016-06-01 | 2016-09-21 | 中钢集团郑州金属制品研究院有限公司 | Online double phosphating method for steel wires and continuous production equipment for method |
| CN109056034A (en) * | 2018-08-03 | 2018-12-21 | 南京派诺金属表面处理技术有限公司 | Room temperature electrolytic phosphating process and phosphating solution |
| CN111197163A (en) * | 2018-11-20 | 2020-05-26 | 天津市银丰钢绞线股份有限公司 | Pretreatment process of steel strand |
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| CN103132122B (en) | 2015-07-22 |
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