CN102751045A - High-strength large-elongation aluminium-clad steel wire production method - Google Patents
High-strength large-elongation aluminium-clad steel wire production method Download PDFInfo
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- CN102751045A CN102751045A CN2012102365171A CN201210236517A CN102751045A CN 102751045 A CN102751045 A CN 102751045A CN 2012102365171 A CN2012102365171 A CN 2012102365171A CN 201210236517 A CN201210236517 A CN 201210236517A CN 102751045 A CN102751045 A CN 102751045A
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Abstract
The invention relates to a high-strength large-elongation aluminium-clad steel wire production method, in particular to a high-strength large-elongation aluminium-clad steel wire stabilizing production method, and the aluminium-clad steel wire produced by the method is widely used for power line ground wires, and can be used instead of galvanized steel. The production method comprises the steps: (1) conducting descaling treatment on a high-carbon steel hot-rolled wire rod by a descaling wheel, and drawing into a predrawn semi-finished steel wire with diameter needed by design by a predrawing machine through a tungsten steel wire drawing die; (2) conducting lead quenching treatment on the predrawn semi-finished steel wire by a heat treatment furnace, carrying out acid-washing, and descaling to obtain the hot-treatment semi-finished steel wire with clean surfaces; (3) evenly cladding a layer of aluminum to the outer layer of the hot-treatment semi-finished steel wire by a continuous extrusion cladding machine, compounding with a steel wire under the actions of extrusion force and traction, thus forming a clad semi-finished product; and (4) conducting repeated drawing on the clad semi-finished product by a double-metal synchronous deformation wire drawing machine into finished high-strength large-elongation aluminium-clad steel wire products.
Description
Technical field
What the big percentage elongation aluminium-clad steel wire of high strength of the present invention production method related to is the stable production method of the big percentage elongation aluminium-clad steel wire of a kind of high strength, and the aluminium Baogang that this method is produced is widely used in the power circuit lead wire and earth wire, the use of instead galvanized steel on lead.
Background technology
Aluminum current Baogang product generally is used in electric power, bridge, railway.Concerned power has: aluminium Baogang core aluminum stranded wire, aluminum-cladding stranded wire, OPGW (OPGW), preformed armor rods gold utensil etc.; Bridge railway aspect has: the carrying suspension cable that high strength is anti-oxidation etc.Existing aluminium Baogang has advantage than zinc-coated wire: (1) corrosion resistance is good; (2) proportion is little; (3) conduct electricity very well; (4) long service life, economy is good.But on the low side than strength of galvanized wire and percentage elongation, satisfied not the requirement that replaces galvanized steel fully.
Summary of the invention
The present invention seeks to provides the big percentage elongation aluminium-clad steel wire of high strength (silk) production method to above-mentioned weak point, is a kind of stabilisation production method of high-strength aluminium steel clad wire; Promptly select for use high-carbon steel heat to prick wire rod, changed traditional lead bath heat treatment temperature, reduced about 20 ℃; Improved the tensile strength and the reduction of area index of heat treatment steel wire, reduced under the prerequisite of total draught, through the bimetallic deform in same pace drawing of the little compression ratio of multi-pass; Optimized each item mechanical index of finished product, final tensile strength >=1410MPa, percentage elongation >=1.6%; Reach the requirement of high-strength aluminium steel clad wire tensile strength and toughness index, satisfied demands of applications.
The big percentage elongation aluminium-clad steel wire of high strength production method takes following technical scheme to realize: the big percentage elongation aluminium-clad steel wire of high strength production method is following:
1, high-carbon steel heat is pricked wire rod and handle, and adopt the prestretching machine it to be drawn to the required prestretching rerolled steel filament diameter of technological design through the wolfram steel wire drawing die through the shell-rinding wheel descale.
2, the prestretching process wire is carried out patenting through heat-treatment furnace and handle the heat-treatment lines temperature: 900 ℃-905 ℃, about lead bath temperature: 500-560 ℃, time inside furnace: about 150-200S.In concentration is the industrial synthesis hydrochloric acid of 18%-22%, carry out online pickling again, remove surface scale, obtain sorbite content more than 90%, the heat treatment process wire of surface cleaning.
3, the heat treatment process wire is covered layer of aluminum through continuously extruded coating machine at the steel wire skin equably, the heating-up temperature of die cavity: >=400 ℃, obtain coating semi-finished product.The aluminum layer thickness that coats requires to design according to the aluminum layer thickness of GB/T17937-2009 standard code.Continuously extruded coating principle is to be that 99.5% aluminium bar forms the semi-molten state in die cavity with purity, and is through the steel wire both sides, compound with steel wire under the effect of extruding force and tractive effort simultaneously, extrudes nib together, forms the coating semi-finished product.
4, will coat semi-finished product through the drawing of bimetallic deform in same pace wire drawing machine multi-pass.The drawing principle is through pressure mould and the combination of wolfram steel wire drawing die, under the effect of AT-02 wire drawing powder lubricant, carries out the deform in same pace of steel aluminium.The control total draught is between 60%-66% during drawing, and the single pass compression ratio is below 17%, and the multi-pass drawing goes out the big percentage elongation aluminium-clad steel wire of high strength finished product.
Said high-carbon steel heat is pricked wire rod and is selected for use 82B high-carbon steel heat to prick wire rod.
Said wire drawing powder lubricant is selected AT-02 wire drawing powder lubricant for use.
Total draught refers to the total deformation of wire drawing, and its computing formula is following:
Q=（1-d2/D2）×100%
Wherein: Q is total draught %, and D is the aluminium-clad steel wire diameter mm before the wire drawing, and d is the diameter mm of wire drawing product line.
Single pass compression ratio q=(1-d
n2/d
N-12) * 100%
Wherein: q is single pass compression ratio %, d
nBe passes of drawing line footpath mm, d
N-1Be last passes of drawing line footpath mm.
The intensity of pressing LB20 aluminium Baogang among the GB/T17937-2009 is at 1340MPa; The aluminium Baogang intensity that the method is produced improves 70MPa on former basis; Percentage elongation by former 1.0% bring up to 1.6% and more than; Other index all meets the standard of the GB/T17937-2009 of aluminium Baogang, has reached the requirement of the big percentage elongation of high strength.
The big percentage elongation aluminium-clad steel wire of high strength of the present invention production method is a kind of stabilisation production method of high-strength aluminium steel clad wire, has promptly selected for use high-carbon steel heat to prick wire rod; Change traditional lead bath heat treatment temperature, reduced about 20 ℃, improved the tensile strength and the reduction of area index of heat treatment steel wire; Reducing under the prerequisite of total draught,, optimizing each item mechanical index of finished product through the bimetallic deform in same pace drawing of the little compression ratio of multi-pass; Final tensile strength >=1410MPa; Percentage elongation >=1.6% reaches the requirement of high-strength aluminium steel clad wire tensile strength and toughness index, has satisfied demands of applications.
The advantage of the Extra High Strength aluminium Baogang that the big percentage elongation aluminium-clad steel wire of high strength of the present invention production method is produced:
1, significantly improved the intensity and the percentage elongation index of aluminium Baogang, each item mechanical performance index is stable;
2., have excellent corrosion resisting performance and electric conductivity;
3, solved the application requirements of big leap, the built on stilts lead wire and earth wire of hightension.
Description of drawings
Below will combine accompanying drawing that the present invention is described further:
Fig. 1 is the big percentage elongation aluminium-clad steel wire of the high strength structural representation that the big percentage elongation aluminium-clad steel wire of high strength of the present invention production method is produced.
Fig. 2 is the big percentage elongation aluminium-clad steel wire of a high strength of the present invention production method process chart.
Embodiment
With reference to accompanying drawing 1,2, the big percentage elongation aluminium-clad steel wire of high strength production method is following:
1, high-carbon steel heat is pricked wire rod and handle, and adopt the prestretching machine it to be drawn to the required prestretching rerolled steel filament diameter of technological design through the wolfram steel wire drawing die through the shell-rinding wheel descale.
2, the prestretching process wire is carried out patenting through heat-treatment furnace and handle the heat-treatment lines temperature: 900 ℃-905 ℃, about lead bath temperature: 500-560 ℃, time inside furnace: about 150-200S.In concentration is the industrial synthesis hydrochloric acid of 18%-22%, carry out online pickling again, remove surface scale, obtain sorbite content more than 90%, the heat treatment process wire of surface cleaning.
3, the heat treatment process wire is covered layer of aluminum through continuously extruded coating machine at the steel wire skin equably, the heating-up temperature of die cavity: >=400 ℃, obtain coating semi-finished product.The aluminum layer thickness that coats requires to design according to the aluminum layer thickness of GB/T17937-2009 standard code.Continuously extruded coating principle is to be that 99.5% aluminium bar forms the semi-molten state in die cavity with purity, and is through steel wire (silk) both sides, compound with steel wire under the effect of extruding force and tractive effort simultaneously, extrudes nib together, formation coating semi-finished product.
The conductance designing and calculating:
Aluminium (61%IACS * S aluminum ratio)+steel (9%IACS * S steel ratio)=conductance (unit: %IACS).
For example: the LB14 conductance designs as follows:
The conductance of design:
Aluminium (61%IACS * 0.13)+steel (9%IACS * 0.87)=15.76%IACS
Consider error, minimum conductance is stipulated 14%IACS (123.15n Ω .m).
4, will coat semi-finished product through the drawing of bimetallic deform in same pace wire drawing machine multi-pass.The drawing principle is through pressure mould and the combination of wolfram steel wire drawing die, under the effect of wire drawing powder lubricant, carries out the deform in same pace of steel aluminium.The control total draught is between 60%-70% during drawing, and the single pass compression ratio is below 17%, and the multi-pass drawing goes out the big percentage elongation aluminium-clad steel wire of high strength finished product.
Said high-carbon steel heat is pricked wire rod and is selected for use 82B high-carbon steel heat to prick wire rod.
Said wire drawing powder lubricant is selected AT-02 wire drawing powder lubricant for use.
With reference to accompanying drawing 1, the big percentage elongation aluminium-clad steel wire of high strength that the big percentage elongation aluminium-clad steel wire of high strength of the present invention production method is produced has steel wire core 1, and extruding is coated with aluminium lamination 2 outside steel wire core 1.
Embodiment:
With grade LB20 (with reference to the definition of aluminium Baogang grade in the GB/T 17937-2009 standard, LB14 representes that conductance is 14%IACS, and IACS is an International Annealed Copper Standard), diameter is that the Extra High Strength aluminium-clad steel wire production of Φ 3.0 is example:
Raw material: diameter is that the 82B high-carbon steel heat of Φ 6.5 is pricked wire rod
Prestretching: with diameter is that the 82B high-carbon steel heat of Φ 6.5 is pricked wire rod and handled through the shell-rinding wheel descale, and adopts the prestretching machine through the wolfram steel wire drawing die it to be drawn to the required Φ of technological design 4.6 prestretching semi-finished product.
Heat treatment: the prestretching process wire is carried out patenting through heat-treatment furnace handle the heat-treatment lines temperature: 905 ℃, the lead bath temperature: 550 ℃, time inside furnace: 171S.In concentration is the industrial synthesis hydrochloric acid of 18%-22%, carry out online pickling again, remove surface scale, obtain sorbite content more than 90%, the heat treatment process wire of surface cleaning.
Coat: heat treatment semi-finished product steel wire (silk) is covered layer of aluminum, the heating-up temperature of die cavity through continuously extruded coating machine at steel wire (silk) skin equably: >=400 ℃, obtain coating semi-finished product.The aluminum layer thickness that coats requires (table 1) to design according to the aluminum layer thickness of GB/T17937-2009 standard code.Continuously extruded coating principle is to be that 99.5% aluminium bar forms the semi-molten state in die cavity with purity, and is through the steel wire both sides, compound with steel wire under the effect of extruding force and tractive effort simultaneously, extrudes nib together, and the formation diameter is the coating semi-finished product of Φ 5.32.
Wire drawing:
To coat semi-finished product through the drawing of bimetallic deform in same pace wire drawing machine multi-pass.The drawing principle is through pressure mould and the combination of wolfram steel wire drawing die, under the effect of wire drawing powder lubricant, carries out the deform in same pace of steel aluminium.Prepare drawing die according to table 1, total draught is 68.2%, and the single pass compression ratio is below 17%, and the multi-pass drawing goes out the big percentage elongation aluminium-clad steel wire of high strength finished product.
Table 1
| |
1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Φ6.4 | Φ 4.9 | Φ 4.5 | Φ 4.15 | Φ3.82 | Φ3.52 | Φ 3.25 | Φ 3.0 |
| Compression ratio | 15.2% | 15.7% | 15.0% | 15.3% | 15.1% | 14.8% | 14.8% |
[0031]Through detecting, the intensity of the big percentage elongation aluminium-clad steel wire of this high strength is 1432MPa, and elongation after fracture is 1.8%, reverses 43 circles.
Claims (3)
1. the big percentage elongation aluminium-clad steel wire of high strength production method is characterized in that:
(1) high-carbon steel heat is pricked wire rod and handle, and adopt the prestretching machine it to be drawn to the required prestretching rerolled steel filament diameter of technological design through the wolfram steel wire drawing die through the shell-rinding wheel descale;
(2) the prestretching process wire is carried out patenting through heat-treatment furnace and handle the heat-treatment lines temperature: 900 ℃-905 ℃, about lead bath temperature: 500-560 ℃, time inside furnace: about 150-200S;
In concentration is the industrial synthesis hydrochloric acid of 18%-22%, carry out online pickling again, remove surface scale, obtain sorbite content more than 90%, the heat treatment semi-finished product steel wire of surface cleaning;
(3) the heat treatment process wire is covered layer of aluminum through continuously extruded coating machine at the steel wire skin equably, the heating-up temperature of die cavity: >=400 ℃, obtain coating semi-finished product;
The aluminum layer thickness that coats requires to design according to the aluminum layer thickness of GB/T17937-2009 standard code; Continuously extruded coating principle is to be that 99.5% aluminium bar forms the semi-molten state in die cavity with purity; Through the steel wire both sides, under the effect of extruding force and tractive effort, compound simultaneously with steel wire; Extrude nib together, form and coat semi-finished product;
(4) will coat semi-finished product through the drawing of bimetallic deform in same pace wire drawing machine multi-pass;
The drawing principle is through pressure mould and the combination of wolfram steel wire drawing die; Under the effect of wire drawing powder lubricant, carry out the deform in same pace of steel aluminium, the control total draught is between 60%-70% during drawing; The single pass compression ratio is below 17%, and the multi-pass drawing goes out the big percentage elongation aluminium-clad steel wire of high strength finished product.
2. the big percentage elongation aluminium-clad steel wire of high strength according to claim 1 production method is characterized in that: said high-carbon steel heat is pricked wire rod and is adopted 82B high-carbon steel heat to prick wire rod.
3. the big percentage elongation aluminium-clad steel wire of high strength according to claim 1 production method, it is characterized in that: said wire drawing powder lubricant is selected AT-02 wire drawing powder lubricant for use.
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| CN103008385A (en) * | 2012-12-14 | 2013-04-03 | 武汉钢铁(集团)公司 | Method for producing steel wire for steel core of ultrahigh-strength overhead cable by using 82B steel wire rod |
| CN103643146A (en) * | 2013-11-21 | 2014-03-19 | 江苏天舜金属材料集团有限公司 | Chromium-molybdenum low-alloy prestress aluminum-cladding steel wire manufacturing method |
| CN103966417A (en) * | 2013-01-31 | 2014-08-06 | 张家港市骏马钢帘线有限公司 | Process method for increasing surface quality and drawing property of ultra-fine high-carbon steel wire |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036923A (en) * | 2007-01-17 | 2007-09-19 | 新华金属制品股份有限公司 | Prestressed aluminum-cladding stranded wire |
| CN101058101A (en) * | 2007-01-17 | 2007-10-24 | 新华金属制品股份有限公司 | Prestressed aluminium coated steel wire |
| CN102463267A (en) * | 2010-11-10 | 2012-05-23 | 姜晓烨 | Wet drawing method of Al-enclosing steel wires for electrotechnics |
-
2012
- 2012-07-10 CN CN201210236517.1A patent/CN102751045B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036923A (en) * | 2007-01-17 | 2007-09-19 | 新华金属制品股份有限公司 | Prestressed aluminum-cladding stranded wire |
| CN101058101A (en) * | 2007-01-17 | 2007-10-24 | 新华金属制品股份有限公司 | Prestressed aluminium coated steel wire |
| CN102463267A (en) * | 2010-11-10 | 2012-05-23 | 姜晓烨 | Wet drawing method of Al-enclosing steel wires for electrotechnics |
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| CN111834046A (en) * | 2019-04-16 | 2020-10-27 | 中天电力光缆有限公司 | Preparation method of wire and wire |
| CN110125211A (en) * | 2019-04-26 | 2019-08-16 | 东南大学 | A kind of production method of big elongation percentage aluminum cald steel wire |
| CN110153212A (en) * | 2019-05-14 | 2019-08-23 | 武汉钢铁有限公司 | Cold drawn wire hot extrusion method for coating |
| CN111687236A (en) * | 2019-11-19 | 2020-09-22 | 江苏中天科技股份有限公司 | Preparation method of coated alloy wire |
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| CN111816349A (en) * | 2020-07-18 | 2020-10-23 | 河南通达电缆股份有限公司 | Ultrahigh-conductivity aluminum-clad steel strand and production process thereof |
| CN111816349B (en) * | 2020-07-18 | 2022-02-25 | 河南通达电缆股份有限公司 | Ultrahigh-conductivity aluminum-clad steel strand and production process thereof |
| CN112453080A (en) * | 2020-11-05 | 2021-03-09 | 德清林缘金属制品有限公司 | Manufacturing method of steel wire with excellent stability and stress resistance for spring |
| CN113445338A (en) * | 2021-06-30 | 2021-09-28 | 新余新钢金属制品有限公司 | Aluminum-clad steel wire with high torsion performance |
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