CN100336932C - Technological method of steel wire overlay galfan alloy and its equipment - Google Patents
Technological method of steel wire overlay galfan alloy and its equipment Download PDFInfo
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- CN100336932C CN100336932C CNB2004100939321A CN200410093932A CN100336932C CN 100336932 C CN100336932 C CN 100336932C CN B2004100939321 A CNB2004100939321 A CN B2004100939321A CN 200410093932 A CN200410093932 A CN 200410093932A CN 100336932 C CN100336932 C CN 100336932C
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Abstract
The present invention relates to a process method and a device for a steel wire single plating Galfan alloy, which successively comprises the following procedures: payingoff, degreasing, acid cleaning, water washing, plating assistance, drying, hot dipping, vertical lead-out, smearing wiping, forced cooling and taking up. The present invention is characterized in that the plating assistance adopts an electrolytic plating assistance method; in the formula of an electrolyte, Zinc sulfate is from 8 to 12%, a GD-L catalyst is from 2.5 to 3% and water is the rest. The line walking speed of the plating assistance is from 15 to 70 meters per time sharing, and the corresponding current density is from 1000 to 5000 A/m<2>. The hot dipping plating procedure of the device adopts an internal heater made of a refractory zincification alloy pipe. The method of the present invention has the advantages of few plating assistance liquid components, stability, easy control, low production cost, assured product quantity, simple device structure, good applicability and low cost.
Description
Technical field
The present invention relates to the metal products manufacturing technology in the metallurgy industry, be specially a kind of processing method and equipment thereof of metal products coating technology, particularly a kind of steel wire overlay galfan alloy, international monopoly Main classification number plan is Int.Cl
7.C25D 3/22.
Background technology
The Galfan alloy is meant a spot of alloy of Zn+5%Al+Re.No matter this Galfan alloy layer is for wire rod, or tubing, sheet material and band, and all the erosion resistance of the pure zinc coating that extensively adopts at present improves 2-3 doubly, thereby can solve by the application problem of metallizing goods in particular surroundings.Replace pure zinc coating with the Galfan alloy simultaneously and also can produce huge economic benefit: at first, the Galfan alloy layer can strengthen the solidity to corrosion of coated metal goods.Galfan alloy layer product has tangible corrosion-resistant advantage than traditional zinc coating, for example have relatively high expectations all provable this point of comparison test of the metal products that uses in the environment (wireline that uses as fishery, the reinforcing bar that coastal dykes and dams use etc.) of corrodibility (had better erosion resistance referring to hot dip Galfan steel wire, international wire magazine, 29 volumes, the 3rd phase, in March, 1996, the 78-82 page or leaf; Dewitte, Marc; Hostetler, John L.Galvanizing withGalfan provides better corrosion resistance for wire products.WireJournal International v 29n 3Mar 1996.p 78-82).And then the Galfan alloy layer can increase substantially the work-ing life of coated articles.Cable for example---the cable that is used for power transmission and transformation at present adopts Aluminium Cable Steel Reinforced, is to come rot-resistant by zinc-plated as the steel core wire of strength support.The corrosion fatigue life of this zinc coating is generally 50 years, so the work-ing life of cable is not high.If steel core wire adopts plating Galfan alloy, its corrosion fatigue life can be double, brings up to 100-150, prolonged the life-span of cable greatly.Again for example, heavy construction member such as bridge, iron tower, guardrail etc. adopt Galfan coating also all can increase substantially work-ing life (referring to microtexture, growth dynamics and the erosion resistance of hot dip Zn-5%Al coating, corrosion (Boston) 47 volumes, the 7th phase, in July, 1997,536-541 page or leaf; Rocha, L.A.; Barbosa, M.A.Microstructure, growth kinetics, thereby demonstrate the huge economic benefit of Galfan alloy layer metal products and corrosionresistance of hot-dip galvanized Zn-5% Al coatings.Corrosion (Houston) v 47n 7 Jul 1991 p 536-541.).
Advantage and economic benefit just because of Galfan alloy layer metal products, from initial stage eighties Galfan alloy layer since Europe obtains industrial application, only the more than ten years, the Galfan alloy layer product in Europe has developed rapidly produces 4000000 tons technical scale per year.In recent years China also pays much attention to this technology, and after Tianjin Wire Works in 1998 introduced China article one Galfan alloy layer Production for Steel Wire line, the Shanghai Baosteel had been introduced two production lines again in 2002.In addition, Wuhan Iron and Steel Plant, your steel capital are actively preparing to build the two other production line by the project verification of national Economic and Trade Commission.
The processing method of steel wire plating Galfan alloy layer has two kinds: the one, and two electroplating methods; The 2nd, single electroplating method.So-called two electroplating method is exactly earlier zinc-plated, twice plating process method of back plating Galfan alloy.This pair of electroplating method complex process, technical difficulty is big, the production cost height.For example, that Galfan alloy layer production line that Tianjin Wire Works introduces spends 2,000 ten thousand Renminbi, and a domestic common galvanizing line only needs 2,000,000 yuans.So high facility investment, most of medium-sized and small enterprises are difficult to bear, and also will inevitably bring very high production cost, and product is lacked competitiveness, and have brought huge resistance and difficulty also for simultaneously popularization Galfan alloy layer technology.So-called single depositing process is meant and saves the pure zinc-plated operation in preceding road, the processing method of directly plating the Galfan alloy.Clearly, single electroplating method technology is simple, with short production cycle, and cost is also low, is to endeavour at present the direction studied both at home and abroad.
U.S. Pat 4738758 has reported that a kind of name is called the coating technology of " dip process " plating Galfan alloy.This technology has been used Galfan electrolysis special plating assistant agent, and main component is ZnCl
2, NaCl, KCl, NaF, HF and (or) KF etc.This method is that first workpiece is immersed contained in the electrolytic solution of zine ion, makes this metal first at workpiece surface formation one metal level (zinc) as thin as a wafer in the mode of galvanic deposit, and plating assistant agent is coated on this thin metal layer again, carries out the Galfan hot dip process then.The subject matter of this single electroplating method is that the composition of plating assistant agent is too complicated, makes the poor stability in its production process, and solution composition is restive, the large-scale industrial production difficulty.Japanese Patent JP 0130839 has reported that also a kind of name is called the coating technology of " solvent method " single plating alfan alloy.This technology is to adopt solvent to help plating back hot dip process aluminium zinc coating at steel metal or Steel Wire Surface, and the main component of plating assistant agent is ZnCl
2, SnCl
2And alkaline-earth metal etc.This single electroplating method exists because of containing the Cl element in the plating assistant agent prescription, and Cl and Al reaction forms low-melting AlCl during hot dip Galfan alloy
2, and gasification causes coating the defective of porous or plating leakage to occur, so this technology can't actually obtain industrial application.Domestic one piece of exercise question is document (Li Guangling, Luo Zhanqiang, metal products, 1991 of " hot dip Zn-5Al-RE alloy rope making wire production test "; 17 (2): 13-15) reported that Ningbo Fishery Wirerope Factory adopts single depositing process to finish the production test (industrialness pilot scale, steel wire feed intake 24 tons) of hot dip Zn-5Al-RE alloy rope making wire.Its technological process is unwrapping wire → degreasing → pickling → wash → help plating → oven dry → hot dip process → vertically draw → wiping → pressure cooling → take-up.This research has adopted simple chemistry to help electroplating method, is similar to the electroplating method that helps of pot galvanize.But this research proves unsuccessful method at present.It mainly exists following problem: 1. quality of coating is bad.There are micropore and plating leakage, Trace speed height especially, when turnout was big, problem is outstanding (scrap rate was up to 13%) particularly; 2. yield poorly.Because of its Trace speed is too low, the highest have only 14 meters/minute, and normal industrial production Trace speed will be higher than 40 meters/minute at least, and obviously output is very low, does not have practical value.It is too low that the problem that low Trace speed like this brings is not only output, the abnormal height of production cost; Can make that also the last zinc amount of product is too low, not reach the quality standard requirement.Generally speaking, the result of study of document report does not obtain the industrial production application.
In addition, the smearing of existing external single coating technology wipe away operation adopt nitrogen (referring to the Galfan supercoat of wire rod and high-strength bolt, German the first in the world 1992,78 volume first phases of portion, 22-24 page or leaf; Nuenninghoff R, Sczepanski K.Protective coating.Galfan-coatingof wire and high-strength screws.Part 1.Draht Welt, 1992,78 (1): 22-24,), use and handling cost are too high, also are unfavorable for the actual production use.
Summary of the invention
At the deficiency of existing single electroplating method, the present invention mainly solves processing method and the equipment that described technical problem provides a kind of steel wire overlay galfan alloy.It is simple that this method has processing method, low production cost, but advantages such as constant product quality and suitability for industrialized production.This equipment advanced person that possesses skills, simple in structure, advantage such as suitability is good, and is with low cost.
The technical scheme that the present invention solves described method and technology problem is: the processing method that designs a kind of steel wire overlay galfan alloy, this method comprises unwrapping wire, degreasing, pickling successively, washes, helps plating, oven dry, hot dip process, vertically draw, smear and wipe away, force cooling and wire-drawing process, it is characterized in that the described plating employing electrolytic plating method that helps, the weight percent prescription of its electrolytic solution is zinc sulfate 8-12%, GD-L catalyzer 2.5-3%, water surplus; The Trace speed that helps plating is 15-70 rice/timesharing, and its corresponding current density is 1000-5000A/m
2
The technical scheme that the present invention solves described equipment and technology problem is: design a kind of equipment that is applicable to the steel wire overlay galfan alloy processing method, it is characterized in that the internal heater that the described hot dip process operation in this equipment adopts the resisting corrosion of molten zinc compo pipe to make.
Technical problem to be solved by this invention provides a kind of processing method and corresponding use equipment of steel wire overlay galfan alloy.For described processing method, the described plating employing electrolytic plating method that helps of the present invention, its electrolyte prescription has only zinc sulfate, GD-L catalyzer and three kinds of materials of water (disregard water and have only two kinds of substance), far fewer than described prior art, that is to say that electrolytic solution composition of the present invention is simple, parameter is few, and influence factor is few, and technology controlling and process is easy.In fact, the present invention only need control the quality that zinc ion concentration and acidity can guarantee the stability of plating bath and help coating, and then the Galfan coating of final bonding depositing process and the bonding force of matrix bond.Simultaneously, owing to the quickening liquid composition is few, and stable easily control, thereby low production cost, and be easy to produce maintenance, can guarantee quality product.Test shows that the inventive method can thoroughly solve Galfan alloy and the direct bonded list of iron-based body depositing process problem, does not have plating leakage, and Trace speed can fully satisfy the requirement of turnout and last zinc amount, the continous-stable operation of realization suitability for industrialized production.
For described equipment, the feature of present device is the internal heater that described hot dip process operation has adopted the resisting corrosion of molten zinc compo pipe to make.The zinc pot of plating Galfan alloy must adopt pottery system zinc pot, to avoid the influence of iron pan to solution composition.And the heating of ceramic zinc pot is very difficult, and the general type of heating that adopts is to go up heating.But this heating means thermo-efficiency is low, energy consumption is high, the zinc consumption is high, uneconomical; And the last type of heating of internal heating mode that the present invention adopts can save energy 43%, joint zinc 10-15%, thus can reduce galvanized production cost, make the easier popularization of this technology and product.Because described resisting corrosion of molten zinc compo pipe internal heater is first other two patented technologies (CN 1211894 and CN2340144) of applicant to be incorporated in the equipment of hot dip Galfan alloy and the technology, therefore the advanced person possesses skills, simple in structure, advantages such as suitability is good, and is with low cost.
Description of drawings:
Fig. 1 is the set-up mode synoptic diagram of the described electrolytic plating zinc plate electrode of the inventive method in coating bath.
Embodiment
Describe the present invention in detail below in conjunction with embodiment and accompanying drawing thereof.
The method of the present invention's design is: the processing method that designs a kind of steel wire overlay galfan alloy, comprise unwrapping wire, degreasing, pickling successively, wash, help plating, oven dry, hot dip process, vertically draw, smear and wipe away, force cooling and wire-drawing process, it is characterized in that the described plating employing electrolytic plating method that helps, its electrolyte prescription is zinc sulfate 8-12%, GD-L catalyzer 2.5-3%, water surplus; The Trace speed that helps plating is 15-70 rice/timesharing, and its corresponding current density is 1000-5000A/m
2Two problems that prior art mainly exists: the one, how to guarantee the bonding force of Galfan alloy and plating piece, solve the stable and plating leakage problem of plating piece coating; The 2nd, how to guarantee the thickness of coating problem.Generally speaking, the thickness of coating of single depositing process itself is thinner, want to satisfy thickness requirement with regard to the present higher Trace speed of needs ratio, but this is difficult to realize.Obviously, have only the above-mentioned two problems of having solved, guarantee the quality and the thickness of coating, it is simple, with low cost that single depositing process is only technology, but the practical art method of industrializing implementation.Processing method of the present invention has solved two problems that prior art exists better: at first, the present invention adopts electrolytic plating technology, it can form skim porous, the rich zinc layer of loose complex compound in the metallic surface, rely on the rich zinc layer of this complex compound can make itself and Galfan alloy reaction, generate stable key coat, thereby just can solve the Galfan coating of single depositing process and the difficult problem of matrix bond.Electrolytic solution composition of the present invention is no more than 3 kinds, has only water, zinc sulfate and GD-L catalyzer, and simple electrolytic solution composition can guarantee quantity-produced stability.Because the electrolytic solution composition is simple, parameter is just few, and influence factor is also just few, and it is easier than the most variablees of control to control a small amount of variable, thereby can guarantee the stability and the quality that helps coating of quickening liquid, finally guarantees Galfan coating and matrix good combination.See that further the major ingredient zinc sulfate of electrolytic solution of the present invention and GD-L catalyzer also are the materials of controlling easily.In fact, the inventive method only need be controlled the quality that zinc ion concentration and acidity can guarantee the stability of quickening liquid and help coating.The composition of quickening liquid (electrolytic solution) is few, and is conventional substances, therefore, can make technology simple, with low cost, is convenient to industrialization promotion and implements.The Trace speed of processing method of the present invention when helping the plating operation is 15-70 rice/timesharing, can satisfy the output requirement of applicable industriesization fully, and its corresponding current density is 1000-5000A/m
2General matching principle is: when Trace speed was fast, its corresponding current density was big.Concrete processing parameter requires relevant with product plating thickness.This means that under quickening liquid condition of the present invention, suitable Trace speed and matching current density can guarantee that thickness of coating meets design requirement, and solve described second technical problem.
Of the present inventionly be further characterized in that the described zinc plate electrode 4 of plating in the operation that help is provided with (referring to Fig. 1) in the mode of tiling coating bath 1 bottom.The mode that is horizontally disposed with of this zinc plate electrode 4 is different with the set-up mode of the vertical zinc plate electrode 4 of prior art, it can make by steel plating flight lead zinc plate electrode 4 and be on the sustained height, and the zinc ion concentration of sustained height place plating bath 2 is identical, what can guarantee every steel wire 3 helps the plating condition identical, thereby can guarantee that thickness of coating is identical, and uniformity.The mode of being horizontally disposed with of this zinc plate electrode 4 can solve described thickness of coating problem better.And described Trace speed 15-70 rice/minute between the time, the processing parameter of the scope 1000-5000A/m2 of corresponding current density matches, and can guarantee to obtain the high-quality coating that helps.
The feature of the processing method of steel wire overlay galfan alloy of the present invention is that also described hot dip process operation adopts internal heating pottery zinc pot hot dip Galfan alloy technology.This hot dip Galfan alloy technology is meant applicant's two patented technologies " internal heater with performance of resisting corrosion of molten zinc (ZL98117359.4) " and " pot galvanize with efficient internal heater (ZL98218606.1) " formerly, comprises its Apparatus and operation method.Though these two patented technologies itself have been prior art, successfully be incorporated into the processing method of steel wire overlay galfan alloy, still be first, therefore be the new processing method of a kind of single plating, also be a kind of new installation that single depositing process uses.Introduce this technology and can make galvanizing kettle material that prior art adopts become ceramic zinc pot, avoided the detrimentally affect of iron ion that the iron pan corrosion produces solution composition stability by the iron pan in past.The increase of iron level in the plating bath, the external at present ceramic zinc pot that adopts is to go up heating galvanizing furnace, is the internal heating technology of ceramic zinc pot and the present invention adopts.The type of heating of last heating has improved the surface temperature of plating bath greatly, aggravated the reaction of iron and aluminium, the spending rate of the aluminium in the plating bath is accelerated greatly, and internal heating is well heater to be inserted into heat in the zinc liquid, the liquid level temperature is also low than the temperature in the liquid, this will help the preservation of aluminium, thus make aluminum content in the plating bath change more existing go up type of heating slowly many.Adopt the internal heating technology can realize the accurate temperature controlling of hot dip process operation simultaneously, can guarantee the constant of bath temperature, and with low cost, it is low to overcome existing other heating means cost height, temperature control out of true, equipment life, defectives such as suitability for industrialized production difficulty.
The processing method of steel wire overlay galfan alloy of the present invention is further characterized in that described smearing wipe away operation and adopt the nitrogen and hydrogen mixture that decomposes with pressurized air or liquefied ammonia to smear the technology of wiping away as smearing the air knife of wiping away material.Wipe away for the operation for smearing, the general employing of prior art wiped away material with nitrogen or hydrogen sulfide as smearing, and its shortcoming is: the use cost of nitrogen is too high, and unfavorable industrialization promotion is used, and adopt hydrogen sulfide then poisonous, unfavorable environmental protection and operator's health.What the present invention adopted smears the technology of wiping away to have a production cost low as smearing the air knife of wiping away material with pressurized air, production safety, and control is easy, is convenient to advantages such as industrializing implementation.The nitrogen and hydrogen mixture that the present invention can also adopt liquefied ammonia to decompose is wiped away material as smearing.This method is smeared the hydrogen of wiping away in the gas and can be lighted.Burned flame has the effect of secondary polishing to coating surface, therefore can obtain better surface quality.
Further its feature of the processing method of steel wire overlay galfan alloy of the present invention also be described air knife smear the height of wiping away the device installation site and and institute's steel plating silk between the size of angle all can adjust.This adjustment can rely on air knife to smear to wipe away device upper-lower position stationary installation and come simple realization.Under the constant situation of other conditions, turn down the upper-lower position of air knife, the zinc liquid that can allow Steel Wire Surface bring up solidifies earlier, can increase the thickness of coating.Opposite then can reduce the thickness of coating.More satisfactory is, described air knife is smeared and wiped away the device installation site and upwards steeve, and also be that the air knife edge of a knife is inclined upwardly, and angle is 1-10 ° between the steel wire of the level run that plates.This design can make smearing of producing by boasting wipe away also direction obliquely of gas, and the metallic zinc aluminium alloy of liquid towards can produce a power of upwards lifting, and helps increasing the thickness of coating.The zinc liquid that this technological adjustment can make Steel Wire Surface bring up solidifies in good time, how much adjusts the zinc amount with this, the thickness of control coating.Therefore, the air knife of unique design is smeared and is wiped away the contradiction that device can solve thickness of coating and turnout (Trace speed) effectively, controls the zinc amount well.This illustrates that also the present invention can improve the thickness of coating of steel wire by processing method (Trace speed), but also can control the thickness of coating of steel wire by the improvement of equipment (air knife of special construction design is smeared and wiped away device) installation method, thereby can guarantee the thickness of coating of steel wire, and guarantee the surface quality of coating.
The present invention is when solving described steel wire overlay galfan alloy processing method, also propose a kind of equipment that is applicable to the steel wire overlay galfan alloy processing method, it is characterized in that the hot dip process operation described in this equipment adopts resisting corrosion of molten zinc alloy internal heater.This internal heater is by described applicant two patented technologies " internal heater with performance of resisting corrosion of molten zinc (ZL98117359.4) " and " pot galvanize with efficient internal heater (ZL98218606.1) " defined formerly.That is to say that in the equipment chain of implementing processing method of the present invention, the equipment that described hot dip process operation is used is to adopt internal heater with performance of resisting corrosion of molten zinc (ZL98117359.4) to substitute the well heater of prior art.Because being incorporated into the patented technology internal heater with performance of resisting corrosion of molten zinc in the equipment of steel wire overlay galfan alloy processing method is first, so this equipment advanced person that possesses skills, simple in structure, advantage such as suitability is good, and is with low cost.
Operation of not addressing in the processing method of steel wire overlay galfan alloy of the present invention and the equipment and equipment, comprise unwrapping wire, degreasing, pickling successively, wash, help plating, oven dry, hot dip process, vertically draw, smear technology and equipment such as wiping away, force cooling and wire-drawing process, be applicable to prior art fully.This has also improved the industrial usability of processing method of the present invention and equipment greatly, is convenient to promote and improve and implement.
To sum up, the technology of the present invention processing method and equipment can be realized purpose of the present invention fully: reduce the production cost of Galfan alloy plating piece, make more products adopt the Galfan alloy layer; The initial stage infusion of financial resources of reduction equipment and back production cost for the period; Increase the easiness that the Galfan alloy layer is produced; Make market have more Galfan alloy layer product to select, create bigger economic benefit and social benefit for the human consumer.In addition, the coating of Galfan alloy prior method of the present invention can increase the life-span of plating piece exponentially, thereby can save resource greatly, is of value to Sustainable development.
Also should be noted that, the present invention at be the processing method and the equipment of steel wire product list plating Galfan alloy, but its processing method is fit to the processing method of single plating Galfan alloy of plating Galfan alloy product fully applicable to other, for example, and single plating tubing, sheet material etc.As a same reason, equipment of the present invention also applicable to, perhaps just suitable plating Galfan alloy products single plates employed equipment in the processing method of Galfan alloy applicable to other through simple adaptability reform.
Provide concrete Application Example of the present invention below:
Embodiment 1:
The steel wire diameter of single plating Galfan alloy is 2.0mm.Adopt processing method of the present invention and apparatus processing.Described plating assistant agent prescription is: zinc sulfate 10%, GD-L catalyzer 3%, all the other water; 40 meters/minute of Trace speeds, current density 3500A/m
2The last zinc amount of testing product steel wire is 280 gram/rice
2, meet the product design requirement.
Embodiment 2:
The steel wire diameter 1.0mm of single plating Galfan alloy.Adopt processing method of the present invention and apparatus processing.Described plating assistant agent prescription is: zinc sulfate 8%; GD-L catalyzer 2.5%; All the other water; 30 meters/minute of Trace speeds, current density 3000A/m
2The last zinc amount 130 gram/rice of testing product steel wire
2, meet the product design requirement.
Embodiment 3:
The steel wire diameter 3.0mm of single plating Galfan alloy.Adopt processing method of the present invention and apparatus processing.Described plating assistant agent prescription is: zinc sulfate 12%; GD-L catalyzer 2%; All the other water; 70 meters/minute of Trace speeds, current density 5000A/m
2The last zinc amount 390 gram/rice of testing product steel wire
2, meet the product design requirement.
Although the processing method of steel wire overlay galfan alloy and equipment are simple, easily, cheap, its product performance are not poor, even better.Table 1 has provided the mechanical property contrast situation of single depositing process with two depositing process of steel wire Galfan alloy.By table 1 data as seen, the steel wire mechanical property sacrifice of single plating Galfan alloy is few, and its tack also is better than the steel wire of two plating Galfan alloys.
The mechanical property contrast table of single depositing process of table 1 steel wire Galfan alloy and two depositing process
| Single depositing process | Two depositing process | |
| Tensile strength (MPa) | 1830 | 1635 |
| Extend 1% o'clock stress (MPa) | 1752 | 1430 |
| Elongation (L 0＝250mm) | 4.7％ | 4.4％ |
| Tack (twine and do not ftracture) | 3 times of | 4 times of steel wire diameter |
Claims (7)
1. the processing method of a steel wire overlay galfan alloy, comprise unwrapping wire, degreasing, pickling successively, wash, help plating, oven dry, hot dip process, draw, smear and wipe away, force cooling and wire-drawing process, it is characterized in that the described plating employing electrolytic plating method that helps, the weight percent prescription of its electrolytic solution is zinc sulfate 8-12%, GD-L catalyzer 2-3%, water surplus; The Trace speed that helps plating is 15-70 rice/timesharing, and its corresponding current density is 1000-5000A/m
2
2. the processing method of steel wire overlay galfan alloy according to claim 1 is characterized in that the described mode of zinc plate electrode (4) bottom tiling coating bath (1) of plating in the operation that help is provided with.
3. the processing method of steel wire overlay galfan alloy according to claim 2 is characterized in that described hot dip process operation adopts internal heating pottery zinc pot hot dip Galfan alloy technology.
4. according to the processing method of claim 1,2 or 3 described steel wire overlay galfan alloys, it is characterized in that described smearing wipe away operation and adopt and smear the technology of wiping away with pressurized air as smearing the air knife of wiping away material.
5. the processing method of steel wire overlay galfan alloy according to claim 4, it is characterized in that described air knife smear the height of wiping away the device installation site and and institute's steel plating silk between the size of angle all can adjust.
6. the processing method of steel wire overlay galfan alloy according to claim 5 it is characterized in that described air knife is smeared to wipe away the device installation site and upwards steeve, and angle is 1-10 ° between institute's steel plating silk.
7. an equipment that is applicable to the steel wire overlay galfan alloy processing method is characterized in that the internal heater that the hot dip process operation described in this equipment adopts the resisting corrosion of molten zinc compo pipe to make.
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| CN115354325A (en) * | 2022-04-08 | 2022-11-18 | 贵州大学 | Method for improving corrosion resistance of as-cast Zn-5Al coating material by adding Gd |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327484A (en) * | 1999-10-25 | 2001-12-19 | 新日本制铁株式会社 | Metal plated steel wire having excellent resistance to corrosion and workability and method for producing the same |
| CN1418259A (en) * | 2000-03-17 | 2003-05-14 | 新日本制铁株式会社 | Plated metal wire and production method and production device therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327484A (en) * | 1999-10-25 | 2001-12-19 | 新日本制铁株式会社 | Metal plated steel wire having excellent resistance to corrosion and workability and method for producing the same |
| CN1418259A (en) * | 2000-03-17 | 2003-05-14 | 新日本制铁株式会社 | Plated metal wire and production method and production device therefor |
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