CN103388117B - A kind of galvanized steel wire and manufacture method thereof and hot-galvanizing equipment - Google Patents
A kind of galvanized steel wire and manufacture method thereof and hot-galvanizing equipment Download PDFInfo
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- CN103388117B CN103388117B CN201310310786.2A CN201310310786A CN103388117B CN 103388117 B CN103388117 B CN 103388117B CN 201310310786 A CN201310310786 A CN 201310310786A CN 103388117 B CN103388117 B CN 103388117B
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Abstract
A kind of galvanized steel wire and manufacture method thereof and hot-galvanizing equipment.Galvanized steel wire is the medium high carbon steel wire that carbon content is greater than 0.6%, and the zinc-plated amount on surface is greater than 60g/ per kilogram steel wire.Do not have γ phase Fe-Zn alloy layer to generate between Steel Wire Surface and zinc coating, in the outer whole coating of steel wire, the content of iron is less than 4%; This galvanized steel wire obtains through electroplating technology and hot dip galvanizing process; Hot-galvanizing equipment comprises galvanizing rig, water cooling tank and two deflector rolls.Circulated between zinc-plated case and storage zinc box by recycle pump after zinc heat fused, be full of fused solution zinc in zinc-plated case, the part of its ingress of air has anti-oxidation gas shield, and pressure-fired controls, and metal plated steel wire passes from zinc-plated case both sides.Galvanized steel wire of the present invention has the antiseptic property same with hot-dip galvanizing steel wire, avoids the formation of the γ phase Fe-Zn alloy layer of hot dip galvanizing coating distinctive hardness high-ductility difference simultaneously, has good high-ductility machining deformation ability.
Description
Technical field
The invention belongs to galvanized steel wire and manufacture field, be specifically related to a kind of galvanized steel wire and manufacture method thereof and hot-galvanizing equipment, particularly relate to a kind of surface and be coated with the medium high carbon galvanized steel wire of high-ductility metal plating and manufacture method thereof and hot-galvanizing equipment.
Background technology
Galvanized steel wire is widely used because of its excellent antiseptic property.Up to now, zincincation has electro-galvanizing and the large class of pot galvanize two.Galvanizing technique by plating, zinc is attached to Steel Wire Surface according to electrochemical principle, and have the advantages that coating microstructure is even, plasticity is excellent, but coating is thin, the zinc-plated amount on the bethanized wire surface of suitability for industrialized production is generally less than per kilogram Steel Wire Surface 30 grams.Because the coating of electro-galvanizing is thin, its antiseptic property is poorer than hot-dip galvanizing steel wire.
Hot dip galvanizing process is by the zinc of steel wire through fused solution, Steel Wire Surface and zinc produce reaction and generate Fe content γ phase from high to low, δ phase, ζ phase and η phase Fe-Zn alloy layer, galvanized layer thickness is large, and the zinc-plated amount of Steel Wire Surface can exceed per kilogram Steel Wire Surface 30 grams.When zinc coating comprises containing γ phase fe-zn alloy layer, because in γ phase fe-zn alloy layer, Fe content is about 25%, in δ phase Fe-Zn alloy layer, Fe content is about 10%, in ζ phase Fe-Zn alloy layer, Fe content is about 6%, Fe content <0.3% in η phase, therefore in whole coating, the weight percentage of Fe is greater than 4%, and the weight percentage of typical heat zinc coating Fe is 5.6%.But in Fe-Zn alloy layer, γ phase hardness high-ductility is poor, is unfavorable for that galvanized steel wire carries out the plastic working of aximal deformation value.Because zinc coating also viscous deformation occurs after viscous deformation, not easily pass through metallographic method and observe gamma phase alloy layer, but due to the existence of γ phase, and surperficial pure Zn layer peels off, coating mean F e content can more than 5%.
The Fe-Zn alloy layer that the medium high carbon steel wire of carbon content more than 0.6% is formed in hot galvanizing process is than the Fe-Zn Alloy Plating thickness of soft steel steel wire, and along with carbon content rising, Fe-Zn alloy layer thickness significantly increases.In steel, the increase of si content also significantly can increase Fe-Zn alloy layer thickness simultaneously.Along with technical progress, the thick galvanized steel wire demand of market to high-carbon height silicon grows with each passing day, the thickness of coating of bethanized wire is difficult to reach requirement, and the high-carbon height silicon steel silk twisting property of pot galvanize is poor, follow-up aximal deformation value plastic working difficulty, it is much lower that the galvanized steel wire that its plastic working becomes or the fatigue property being twisted into wireline are made into wireline than bethanized wire.
Current hot-galvanizing equipment all adopts zinc pot, and steel wire is first tilted to down the zinc pot entering and fused solution zinc is housed, and turns to through the deflector roll be immersed in zinc liquid, more vertical or tilt upward and pull out zinc pot.Steel wire is inevitably swiped on deflector roll, affects steel wire surface quality and surface protection film (as electrolytic coating), and then reduces galvanized steel wire twisting property and cause the generation of γ phase Fe-Zn alloy layer.
Summary of the invention
The object of the invention is to provide a kind of galvanized steel wire and the manufacture method thereof with novel coating, and for the deficiency of existing hot-galvanizing equipment and the needs of galvanized steel wire manufacturing processed, proposes a kind of novel hot-galvanizing equipment.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of galvanized steel wire, comprise the zinc coating of steel wire and coated steel wire outside surface from inside to outside successively, wherein steel wire is the medium high carbon steel wire that carbon weight percentage is greater than 0.6%, and surface galvanizing amount is greater than 60g/ per kilogram steel wire.
Further, when described gauge of wire is greater than 1mm, surface galvanizing amount is greater than 60g/ per kilogram steel wire; When described gauge of wire is not more than 1mm, surface galvanizing amount is greater than 76g/ per kilogram steel wire.
δ phase Fe-Zn alloy layer, ζ phase Fe-Zn alloy layer and η phase Fe-Zn alloy layer is also comprised from inside to outside between described steel wire and zinc coating, or also comprise ζ phase Fe-Zn alloy layer and η phase Fe-Zn alloy layer between steel wire and zinc coating from inside to outside, or also comprise η phase Fe-Zn alloy layer from inside to outside between steel wire and zinc coating.
Further, in the outer whole coating of described steel wire, the weight percentage of iron is less than 4%.Because the zinc-plated amount of Steel Wire Surface is greater than 60g/ per kilogram, and there is no γ phase Fe-Zn alloy layer between steel wire and zinc coating, galvanized layer thickness is not less than 60% at the per-cent of whole thickness of coating, and therefore, in the outer whole coating of described steel wire, the weight percentage of iron is less than 4%.
Also be no more than the Al of 0.2% containing weight percentage in described zinc coating.
In addition, galvanized steel wire of the present invention can be made into through viscous deformation the galvanized steel wire that diameter is less than 0.25mm, and the wire cross-section face shape after viscous deformation is circular or special-shaped.Galvanized steel wire of the present invention can obtain wireline or Steel Tendon through establishment, and this wireline (or Steel Tendon) inherits the antiseptic property of galvanized steel wire of the present invention and the advantage of high-ductility (containing high fatigue property).
In the present invention, the zinc-plated amount of galvanized steel wire is greater than 60g/ kilogram of steel wire, reaches pot galvanize level, has the antiseptic property same with hot-dip galvanizing steel wire; Avoid the generation of hot dip galvanizing coating distinctive γ phase Fe-Zn alloy layer simultaneously, make zinc coating of the present invention have the high plastic deformation ability similar with electro-galvanized layer, improve coating plastic property and steel wire plasticity-working ability that carbon content is greater than medium high carbon galvanized steel wire, especially the high-carbon height silicon galvanized steel wire of 0.6%.
The manufacture method of galvanized steel wire of the present invention, comprises the steps:
1) obtain the metal plated steel wire with electrolytic coating after steel wire being carried out electro-galvanizing or Electroplating Aluminum or electro-galvanizing aluminium alloy, degreasing is carried out on the surface of the metal plated steel wire of acquisition and helps plating;
2) degreasing helped the metal plated steel wire after plating to enter hot-galvanizing equipment, metal plated steel wire carries out pot galvanize through the fused solution zinc of anti-oxidation gas shield, then after anti-oxidation gas shield and water-cooled, obtains described galvanized steel wire; Wherein, pot galvanize temperature controls between 420 ~ 500 DEG C, the pot galvanize time is 1 ~ 9s, during pot galvanize, the thickness of hot galvanized layer is by metal plated steel wire Trace speed and smear and wipe device and control, the Trace speed of metal plated steel wire is 0.2 ~ 1.0m/s, smears to wipe device and adopt tool round-meshed ceramic plate to carry out smearing wiping, and the Circularhole diameter of ceramic plate is 0.08 ~ 1.0mm larger than steel wire diameter.
Above-mentioned steps 2) in, after anti-oxidation gas shield and water-cooled, obtain the galvanized steel wire of required zinc coating; Wherein anti-oxidation gas is nitrogen; It is cold that water-cooled adopts the gradient type of cooling from 70 ~ 95 DEG C of high-temperature water cooling sections to 30 ~ 70 DEG C of water at low temperature cooling sections to carry out control.
For hot-dip galvanizing steel wire, in order to strengthen the cement properties between Steel Wire Surface and zinc coating further, the Al of 0.2% in fused solution zinc, can be no more than containing weight percent concentration.
Above-mentioned steps 2) in, pot galvanize temperature controls between 420 ~ 500 DEG C, the pot galvanize time according to the gauge control of electrolytic coating at 1 ~ 9s, to guarantee that electrolytic coating does not melt completely in hot dip zinc box, due to Fe to the time that pure zinc layer spreads less than 10s, the incubation time forming γ phase Fe-Zn alloy layer between Steel Wire Surface and liquid Zn is inadequate, ensure that and does not have γ phase Fe-Zn alloy layer to generate.
Hot-galvanizing equipment of the present invention, comprise, galvanizing rig, it comprises zinc-plated case, storage zinc groove, first heater, secondary heating mechanism, wherein, zinc-plated case both sides are respectively equipped with steel wire inlet, steel wire outlet, and steel wire inlet is not higher than steel wire outlet, and steel wire exit is provided with fused solution zinc to smear to wipe wipes device smearing of Steel Wire Surface; The entrance end of storage zinc groove and the steel wire inlet of zinc-plated case are sealed by gas shield cover and are communicated with, and the exit end of storage zinc groove is communicated with zinc-plated case with a recycle pump by pipeline; First heater is installed on zinc-plated case, and secondary heating mechanism is installed on storage zinc groove; Water cooling tank, its both sides are respectively equipped with steel wire inlet, steel wire outlet, and the steel wire inlet of water cooling tank and the steel wire of zinc-plated case are exported to be sealed by gas shield cover and be communicated with; Two deflector rolls, are arranged at the steel wire inlet place of zinc-plated case, the steel wire exit of water cooling tank respectively.
Further, also comprise aqua storage tank, recycle pump, heat exchanger, aqua storage tank respectively with water cooling tank and recycle pump water-in communicate, the water outlet of recycle pump is connected with the entrance end of heat exchanger, and the exit end of heat exchanger communicates with water cooling tank.
Described water cooling tank is multi-stage type water cooling tank, be preferably syllogic water cooling tank, comprise the first paragraph water cooling tank, the second segment water cooling tank that connect successively, the 3rd section of water cooling tank, wherein, first paragraph water cooling tank is provided with steel wire inlet, the 3rd section of water cooling tank is provided with steel wire outlet; Aqua storage tank respectively with first paragraph water cooling tank and recycle pump water-in communicate, the exit end of heat exchanger communicates with the 3rd section of water cooling tank.
Further, smear that to wipe device be the round-meshed ceramic plate of tool, the Circularhole diameter 0.08 ~ 1.0mm larger than steel wire diameter of ceramic plate described in.
Further, described zinc-plated case steel wire inlet, steel wire outlet be circular hole.
Further, first, second heating unit described is electric heating panel, electrically heated rod or gas-operated thermal bath facility.
Further, the mode that described zinc-plated case is placed is horizontal positioned or slant setting.
In the present invention, obtain fused solution zinc after zinc heat fused, fused solution zinc flows into zinc-plated case from storage zinc box, flows out from the steel wire inlet of zinc-plated case, flows back in storage zinc box, and is circulated between zinc-plated case and storage zinc box by recycle pump.Metal plated steel wire enters from the steel wire inlet of zinc-plated case the zinc-plated case being full of fused solution zinc under deflector roll guiding with positioning action, passes from the steel wire exit of zinc-plated case, enters water cooling tank cooling, then through deflector roll guiding and location, finally enters take-up.Fused solution zinc is smeared and is wiped on metal plated steel wire surface by the ceramic plate that zinc-plated case steel wire exit is installed, and makes its surface have certain thickness liquid zinc layers.Surface is smeared the steel wire wiping liquid Zn and is entered water cooling tank immediately and cool, and liquid Zn is solidified into solid-state zinc coating through water condensation, finally obtains galvanized steel wire of the present invention.The part of fused solution zinc ingress of air all has anti-oxidation gas shield, and pressure-fired controls.The length of described zinc-plated case, the spacing between zinc-plated case and water-chilling plant is all adjustable.
Preferably, water cooling tank is syllogic water cooling tank, that is the 3rd section of water cooling tank is successively to second segment, the flowing of first paragraph water cooling tank from most back segment for water coolant, and water temperature raises gradually, and is circulated between water cooling tank and aqua storage tank by recycle pump and heat exchanger.Surface is smeared the steel wire wiping liquid Zn and is entered from first paragraph water cooling tank, through from high-temperature water cooling section to the cooling of the gradient of water at low temperature cooling section, passes from the 3rd section of water cooling tank, enters take-up through deflector roll traction.
Beneficial effect of the present invention:
1. the zinc-plated amount of galvanized steel wire of the present invention is greater than 60g/ per kilogram steel wire, reach pot galvanize level, in its antiseptic property, the salt mist experiment time reaches more than 202 hours, and in plastic property test, number of torsions reaches more than 38 times, has excellent Corrosion Protection and plastically deformable ability;
2. do not generate γ phase Fe-Zn alloy layer between steel wire and zinc coating in galvanized steel wire of the present invention, in the outer whole coating of steel wire, the weight percentage of iron is less than 4%, be drawn into diameter when being less than the steel wire of 0.25mm, zinc damages≤15%, number of torsions is more than 21 times, zinc coating has the high plastic deformation ability similar with electro-galvanized layer, improves coating plastic property and plasticity-machining deformation ability that carbon content is greater than medium high carbon galvanized steel wire, especially the high-carbon height silicon galvanized steel wire of 0.6%;
3. galvanized steel wire of the present invention is through viscous deformation, as drawing processing, the steel wire that diameter is less than 0.25mm can be obtained, the wireline that further establishment processing obtains or Steel Tendon, also there is high antiseptic property and good fatigue property, being specially the salt mist experiment time reaches more than 150 hours, and flexural fatigue number of times reaches 920,000 times;
4. zinc-plated case of the present invention is interior without the need to installing deflector roll, therefore in galvanizing process, the electrolytic coating of Steel Wire Surface can not be scratched, and then γ phase Fe-Zn alloy layer can not be caused to be formed, ensure that galvanized steel wire has good coating plastic property and plasticity-working ability.
Accompanying drawing explanation
Fig. 1 is the manufacturing process flow schematic diagram of galvanized steel wire of the present invention;
Fig. 2 is the structural representation of hot-galvanizing equipment of the present invention;
Fig. 3 is the structural representation of the galvanized steel wire of the embodiment of the present invention 1;
Fig. 4 is the structural representation of the galvanized steel wire of the embodiment of the present invention 2;
Fig. 5 is the structural representation of the galvanized steel wire of the embodiment of the present invention 3;
Fig. 6 is the structural representation of the galvanized steel wire of the embodiment of the present invention 4.
In above-mentioned Fig. 5-6,1 is steel wire, and 2 is zinc coating, and 3 is δ phase Fe-Zn alloy layer, and 4 is ζ phase Fe-Zn alloy layer, and 5 is η phase Fe-Zn alloy layer.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is described in further detail.
See Fig. 2, hot-galvanizing equipment of the present invention, comprise deflector roll 15, galvanizing rig, water cooling tank 17 and deflector roll 18, wherein, galvanizing rig, it comprises zinc-plated case 16, storage zinc groove 22, first heater, secondary heating mechanism, wherein, zinc-plated case 16 both sides are respectively equipped with steel wire inlet 16-1, steel wire outlet 16-2, steel wire inlet 16-1 not higher than steel wire outlet 16-2, and steel wire outlet 16-2 place is provided with to be smeared by fused solution zinc to wipe smears electricity testing device 24 in Steel Wire Surface; The entrance end of storage zinc groove 22 and the steel wire inlet 16-1 of zinc-plated case 16 are sealed by gas shield cover 30 and are communicated with, and the exit end of storage zinc groove 22 is communicated with zinc-plated case 16 with a recycle pump 23 by pipeline; First heater is installed on zinc-plated case 16 outer wall, and secondary heating mechanism is installed on storage zinc groove 22 outer wall; Water cooling tank 17, its both sides are respectively equipped with steel wire inlet 17-1, steel wire outlet 17-2, and steel wire inlet 17-1 and the steel wire of zinc-plated case 16 of water cooling tank 17 are exported 16-2 and sealed by gas shield cover 30 ' and be communicated with; Deflector roll 15 is arranged at the steel wire inlet 16-1 place of zinc-plated case 16, and deflector roll 18 is arranged at the steel wire outlet 17-2 place of water cooling tank 17.
Further, described water cooling tank 17 is syllogic water cooling tank, comprise the first paragraph water cooling tank 17-3, the second segment water cooling tank 17-4 that connect successively, 3rd section of water cooling tank 17-5, wherein, first paragraph water cooling tank 17-3 is provided with steel wire inlet 17-1, the 3rd section of water cooling tank 17-5 is provided with steel wire outlet 17-2.
Further, galvanizing equipment of the present invention also comprises aqua storage tank 25, recycle pump 26, heat exchanger 27, aqua storage tank 25 respectively with first paragraph water cooling tank 17-3 and recycle pump 26 water-in communicate, the water outlet of recycle pump 26 is connected with the entrance end of heat exchanger 27, and the exit end of heat exchanger 27 communicates with the 3rd section of water cooling tank 17-5.
Further, electricity testing device 24 is smeared described in for the round-meshed ceramic plate of tool.
Steel wire inlet 16-1, the steel wire outlet 16-2 of described zinc-plated case 16 are circular hole.
First, second heating unit described is electric heating panel 21,21 '.
The mode that described zinc-plated case 16 is placed is slant setting.
Embodiment 1
As shown in Figure 1, diameter be 0.84mm and the weight percentage of carbon be 0.7% high carbide low alloy steel wire 100 after Overheating Treatment first through electro-galvanizing, zinc-plated amount is per kilogram Steel Wire Surface 3g, be received in H-wheel 10 as raw material, release from actinobacillus device 11, through degreasing tank 12, hot water washing groove 13 and hot-air drying device 14, remove the greasy dirt on electro-galvanized layer surface, obtain the metal plated steel wire after skimming treatment.
Then by the metal plated steel wire after skimming treatment through plastics deflector roll 15, this deflector roll 15 tilts upward 45 °, enters hot-galvanizing equipment.
As shown in Figure 2, the steel wire inlet 16-1 of zinc-plated case 16 and steel wire outlet 16-2 is equipped with gas shield cover 30,30 ', passes into nitrogen, prevent the oxygen reaction in fused solution zinc and air and be oxidized in gas shield cover 30,30 '.Fused solution zinc is injected into zinc-plated case 16 from storage zinc groove 22 through recycle pump 23, the discharge of the fused solution zinc flowed out in the influx of fused solution zinc and zinc-plated case 16 steel wire inlet 16-1 is equal, ensure to be full of fused solution zinc in zinc-plated case 16, the liquid Zn of outflow flows back in storage zinc groove 22 again.Zinc-plated case 16 surrounding and storage zinc groove 22 surrounding are provided with electric heating panel 21,21 ', controlled the heating power of electric heating panel 21,21 ', ensure that in zinc-plated case 16, liquid Zn temperature controls at 440 ~ 450 DEG C by the temperature of thermopair detection liquid Zn.
Zinc-plated case 16 can realize the adjustment of different lengths by splicing, zinc-plated case 16 length of the present embodiment is 1 meter, be provided with to smear at the steel wire outlet 16-2 place of zinc-plated case 16 and wipe device 24, smear and wipe device 24 and adopt the round-meshed ceramic plate of tool to carry out the hot zinc of melting to smear and wipe, Circularhole diameter on ceramic plate is 1.0mm, the Trace speed of metal plated steel wire is 0.5 meter per second, and the zinc-plated amount of Steel Wire Surface reaches 100 gs/kg of steel wires.Surface smear have the steel wire of fused solution zinc from the steel wire of zinc-plated case 16 outlet 16-2 out after, enter into syllogic water cooling tank immediately, water coolant water is from the highest the 3rd section of water cooling tank 17-5 section flow forward, water temperature raises gradually, flow out through second segment water cooling tank 17-4 and first paragraph water cooling tank 17-3 successively, water temperature raises gradually from the 3rd section 60 DEG C to first paragraph 95 DEG C.Galvanized steel wire then experienced by and cools from high-temperature water cooling section to the gradient of water at low temperature cooling section.Last galvanized steel wire 110, through deflector roll 18, enters into take-up 19.
The time that bethanized wire stops in zinc-plated case is 2s, and electro-galvanized layer does not melt completely, and the incubation time forming γ phase Fe-Zn alloy layer between Steel Wire Surface and liquid Zn is inadequate, does not therefore form γ phase Fe-Zn alloy layer between steel wire and zinc coating.Smear and wipe ceramic plate device control galvanized layer thickness, make the quality of Steel Wire Surface liquid Zn reach 100g/ kilogram of steel wire.Liquid Zn is solidified into solid-state zinc coating through water condensation, and coating is pure zinc structure, namely obtains the galvanized steel wire product of the present embodiment.
The galvanized steel wire that the present embodiment obtains as shown in Figure 3, comprises the zinc coating 2 of steel wire 1 and coated steel wire outside surface from inside to outside successively, does not have Fe-Zn alloy layer between steel wire and zinc coating.Wherein steel wire to be carbon weight percentage be 0.7% medium high carbon steel wire, the zinc-plated amount of Several Thiourea Derivatives on Zinc Plate Surface is 100g/ kilogram of steel wire, and in the outer whole coating of steel wire, the weight percentage of iron is 0.1%.Through test in laboratory, in the antiseptic property test of the present embodiment galvanized steel wire, the salt mist experiment time reaches 240 hours, and in plastic property test, number of torsions reaches 52 times.
This galvanized steel wire, through the water tank drawbench drawing of 17 passages, obtains diameter 0.13mm galvanized steel wire, and coating weight is 85g/kg, and zinc damages and is only 15%, and number of torsions reaches 26 times (testing method: 100xDia).Carry out twisting through pipe twisting machine again, obtain the galvanized wire rope of 3x3x0.13.Through test in laboratory, in the antiseptic property test of galvanized wire rope, the salt mist experiment time reaches 150 hours; In fatigue property, flexural fatigue number of times reaches 920,000 times.
Embodiment 2
The Al of 0.18% is added in fused solution zinc, and reduce steel wire Trace speed to 0.4m/s, the time that bethanized wire is stopped in zinc-plated case is 2.5s, steel wire diameter, touch the Circularhole diameter wiped in device on ceramic plate, and other Processes and apparatus are with embodiment 1, namely obtain galvanized steel wire as shown in Figure 4.
Galvanized steel wire prepared by the present embodiment has η phase Fe-Zn alloy layer 5 structure, galvanized layer thickness is not less than 60% at the per-cent of whole thickness of coating, as shown in Figure 4, wherein steel wire to be carbon weight percentage be 0.9% medium high carbon steel wire, the zinc-plated amount of zinc coating is 94g/ kilogram of steel wire, the weight percentage 0.5% of iron in the outer whole coating of steel wire.
Steel wire is through test in laboratory, and in antiseptic property test, the salt mist experiment time reaches 216 hours, and in plastic property test, number of torsions reaches 48 times.
Embodiment 3
Reduce steel wire Trace speed 0.25m/s, the time that bethanized wire is stopped in zinc-plated case is 4s, and other Processes and apparatus is with embodiment 1.
Galvanized steel wire prepared by the present embodiment has ζ phase Fe-Zn alloy layer 4 and η phase Fe-Zn alloy layer 5 structure, galvanized layer thickness is not less than 60% at the per-cent of whole thickness of coating, as shown in Figure 5, wherein steel wire to be carbon weight percentage be 0.8% medium high carbon steel wire, the zinc-plated amount of zinc coating is 90g/ kilogram of steel wire, the weight percentage 1.2% of iron in the outer whole coating of steel wire.
Steel wire is through test in laboratory, and in antiseptic property test, the salt mist experiment time reaches 202 hours, and in plastic property test, number of torsions reaches 40 times.
Embodiment 4
Reduce steel wire Trace speed 0.2m/s, the time that bethanized wire is stopped in zinc-plated case is 5s, and other Processes and apparatus, with embodiment 1, namely obtains galvanized steel wire.
Galvanized steel wire prepared by the present embodiment has δ phase Fe-Zn alloy layer 3, ζ phase Fe-Zn alloy layer 4 and η phase Fe-Zn alloy layer 5 structure, galvanized layer thickness is not less than 60% at the per-cent of whole thickness of coating, as shown in Figure 6, wherein steel wire to be carbon weight percentage be 0.72% medium high carbon steel wire, the zinc-plated amount of zinc coating is 80g/ kilogram of steel wire, the weight percentage 3.2% of iron in the outer whole coating of steel wire.
Steel wire is through test in laboratory, and in antiseptic property test, the salt mist experiment time reaches 210 hours, and in plastic property test, number of torsions reaches 38 times.
Claims (14)
1. a galvanized steel wire, comprises the zinc coating of steel wire and coated steel wire outside surface from inside to outside successively, and wherein steel wire is the medium high carbon steel wire that carbon weight percentage is greater than 0.6%, and surface galvanizing amount is greater than 60g/ kilogram of steel wire;
The Fe-Zn alloy layer of γ phase is there is not between described steel wire and zinc coating, and between steel wire and zinc coating, also comprise δ phase Fe-Zn alloy layer, ζ phase Fe-Zn alloy layer and η phase Fe-Zn alloy layer from inside to outside, or also comprise ζ phase Fe-Zn alloy layer and η phase Fe-Zn alloy layer between steel wire and zinc coating from inside to outside, or also comprise η phase Fe-Zn alloy layer from inside to outside between steel wire and zinc coating;
Also be no more than the Al of 0.2% containing weight percentage in described zinc coating.
2. galvanized steel wire as claimed in claim 1, it is characterized in that, when described gauge of wire is greater than 1mm, surface galvanizing amount is greater than 60g/ kilogram of steel wire; When described gauge of wire is not more than 1mm, surface galvanizing amount is greater than 76g/ per kilogram steel wire.
3. galvanized steel wire as claimed in claim 1, is characterized in that, in the outer whole coating of described steel wire, the weight percentage of iron is less than 4%.
4. the galvanized steel wire as described in any one of claim 1-3, is characterized in that, described galvanized steel wire makes through viscous deformation the galvanized steel wire that diameter is less than 0.25mm.
5. the galvanized steel wire as described in any one of claim 1-4 is through working out the wireline or Steel Tendon that obtain.
6. the manufacture method of the galvanized steel wire as described in any one of claim 1-3, comprises the steps:
1) obtain the metal plated steel wire with electrolytic coating after steel wire being carried out electro-galvanizing, Electroplating Aluminum or electro-galvanizing aluminium alloy, degreasing is carried out on the surface of the metal plated steel wire of acquisition and helps plating;
2) degreasing helped the metal plated steel wire after plating to enter hot-galvanizing equipment, metal plated steel wire carries out pot galvanize through the fused solution zinc of anti-oxidation gas shield, then after anti-oxidation gas shield and water-cooled, obtains described galvanized steel wire; Wherein, pot galvanize temperature controls between 420 ~ 500 DEG C, the pot galvanize time is 1 ~ 9s, during pot galvanize, the thickness of hot galvanized layer is by metal plated steel wire Trace speed and smear and wipe device and control, the Trace speed of metal plated steel wire is 0.2 ~ 1.0m/s, smears to wipe device and adopt tool round-meshed ceramic plate to carry out smearing wiping, the Circularhole diameter 0.08 ~ 1.0mm larger than steel wire diameter of ceramic plate.
7. the manufacture method of galvanized steel wire as claimed in claim 6, is characterized in that, step 2) in, water-cooled adopts the gradient type of cooling from 70 ~ 95 DEG C of water cooling sections to 30 ~ 70 DEG C of water cooling sections.
8. the manufacture method of galvanized steel wire as claimed in claim 6, is characterized in that, step 2) in, the Al of 0.2% is also no more than in fused solution zinc containing weight percent content.
9. a hot-galvanizing equipment, is characterized in that, comprises,
Galvanizing rig, it comprises zinc-plated case, storage zinc groove, first heater, secondary heating mechanism, and wherein, zinc-plated case both sides are respectively equipped with steel wire inlet, steel wire outlet, steel wire inlet is not higher than steel wire outlet, and steel wire exit is provided with fused solution zinc to smear to wipe wipes device smearing of Steel Wire Surface; The entrance end of storage zinc groove and the steel wire inlet of zinc-plated case are sealed by gas shield cover and are communicated with, and the exit end of storage zinc groove is communicated with zinc-plated case with a recycle pump by pipeline; First heater is installed on zinc-plated case, and secondary heating mechanism is installed on storage zinc groove;
Water cooling tank, its both sides are respectively equipped with steel wire inlet, steel wire outlet, and the steel wire inlet of water cooling tank and the steel wire of zinc-plated case are exported to be sealed by gas shield cover and be communicated with;
Two deflector rolls, are arranged at the steel wire inlet place of zinc-plated case, the steel wire exit of water cooling tank respectively.
10. hot-galvanizing equipment as claimed in claim 9, it is characterized in that, also comprise aqua storage tank, the recycle pump be connected with aqua storage tank, heat exchanger, aqua storage tank communicates with the water-in of water cooling tank and recycle pump respectively, the water outlet of recycle pump is connected with the entrance end of heat exchanger, and the exit end of heat exchanger communicates with water cooling tank.
11. hot-galvanizing equipments as described in claim 9 or 10, it is characterized in that, described water cooling tank is multi-stage type water cooling tank.
12. hot-galvanizing equipments as claimed in claim 11, it is characterized in that, described water cooling tank is syllogic water cooling tank, comprise the first paragraph water cooling tank, the second segment water cooling tank that connect successively, 3rd section of water cooling tank, wherein, first paragraph water cooling tank is provided with steel wire inlet, the 3rd section of water cooling tank is provided with steel wire outlet; Aqua storage tank communicates with the water-in of first paragraph water cooling tank and recycle pump respectively, and the exit end of heat exchanger communicates with the 3rd section of water cooling tank.
13. hot-galvanizing equipments as claimed in claim 9, is characterized in that, described in smear that to wipe device be the round-meshed ceramic plate of tool.
14. hot-galvanizing equipments as claimed in claim 9, it is characterized in that, first, second heating unit described is electric heating panel, electrically heated rod or gas-operated thermal bath facility.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310310786.2A CN103388117B (en) | 2013-07-23 | 2013-07-23 | A kind of galvanized steel wire and manufacture method thereof and hot-galvanizing equipment |
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| CN105598190B (en) * | 2015-12-24 | 2018-11-02 | 四川东钢新材料股份有限公司 | Galvanized steel wire production technology |
| JP6835104B2 (en) * | 2017-01-26 | 2021-02-24 | 日本製鉄株式会社 | Plated steel wire, steel cord and rubber-plated steel wire composite |
| CN109023196A (en) * | 2018-06-29 | 2018-12-18 | 柳州市横阳机械有限公司 | A kind of wire galvanization deactivating process for the treatment of |
| CN109266987A (en) * | 2018-08-29 | 2019-01-25 | 广州倬粤动力新能源有限公司 | The process equipment of zinc silk |
| CN109280869A (en) * | 2018-08-29 | 2019-01-29 | 广州倬粤动力新能源有限公司 | The processing method of zinc silk |
| CN109594031B (en) * | 2018-12-14 | 2021-03-23 | 浙江格力威机械股份有限公司 | Process for galvanizing surface of bolt |
| CN109487307A (en) * | 2018-12-28 | 2019-03-19 | 凡登（常州）新型金属材料技术有限公司 | A kind of zinc-coated wire and preparation method thereof |
| CN110184612B (en) * | 2019-05-15 | 2021-06-18 | 江苏兴达钢帘线股份有限公司 | Steel wire, manufacturing method thereof and steel wire rope |
| CN111349878A (en) * | 2020-03-03 | 2020-06-30 | 奥盛（九江）新材料有限公司 | Energy-saving and environment-friendly production method of hot-dip galvanized steel wire |
| CN113528999B (en) * | 2021-06-28 | 2023-03-24 | 重庆江电电力设备有限公司 | Hot galvanizing system for strip steel |
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| CN201024207Y (en) * | 2007-02-07 | 2008-02-20 | 冯伟年 | Closed steel wire galvanizing device |
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| JPS59159977A (en) * | 1983-03-01 | 1984-09-10 | Sumitomo Electric Ind Ltd | Galvanized ferrous metallic product and its production |
| JPH03281787A (en) * | 1990-03-29 | 1991-12-12 | Nippon Steel Corp | Production of zn-al alloy plated steel wire |
| CN203382813U (en) * | 2013-07-23 | 2014-01-08 | 江苏宝钢精密钢丝有限公司 | Hot-galvanizing equipment |
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