CN100371101C - Manufacturing method of zinc-coated steel wire for main rope of suspension bridge - Google Patents
Manufacturing method of zinc-coated steel wire for main rope of suspension bridge Download PDFInfo
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- CN100371101C CN100371101C CNB2005100259089A CN200510025908A CN100371101C CN 100371101 C CN100371101 C CN 100371101C CN B2005100259089 A CNB2005100259089 A CN B2005100259089A CN 200510025908 A CN200510025908 A CN 200510025908A CN 100371101 C CN100371101 C CN 100371101C
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- Prior art keywords
- steel wire
- zinc
- suspension bridge
- main rope
- manufacturing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 78
- 239000010959 steel Substances 0.000 title claims abstract description 78
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000011701 zinc Substances 0.000 title claims abstract description 35
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 35
- 239000000725 suspension Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000006698 induction Effects 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000009941 weaving Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000009987 spinning Methods 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 2
- 239000011324 bead Substances 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 abstract 1
- 238000005482 strain hardening Methods 0.000 description 8
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 5
- 238000005246 galvanizing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The present invention relates to a manufacturing method of a zinc-coated steel wire for a main rope of a suspension bridge. The present invention is characterized in that the method of which is that firstly, after coated with zinc, a steel wire is positioned on an unreeling frame with back tension force, the steel wire passes through a guide roller and enters a die hole or a roller die, and then, enters an induction heater to heat; after the steel wire comes out, the steel wire is cooled down in a cooling water tank, then, passes through a tension pulley and a rubber pinch roller, passes through a guide slot and a shear, enters a spinning guide tube, extends to the inlet positions of reeling disks, and forms in a tangential direction with a bead ring; finally, one of reeling disks inversely rotates, and according to the movement of the reeling disks, the steel wire guide tube changes the inlet direction by the corresponding radian curvature so as to realize half and half automatic reeling with different rotating directions. The present invention has the advantages that the manufacturing method of a zinc-coated steel wire for a main rope of a suspension bridge improves the dimensional precision of the steel wire, increases the free reeling diameter of the steel wire, improves the compactness of a zinc layer, and does not reduce the quality of the zinc layer and the tough and plastic index of the steel wire.
Description
Technical field
The present invention relates to a kind of manufacturing method of zinc-coated steel wire for main rope of suspension bridge, be particularly useful for the establishment of main rope of suspension bridge.
Background technology
The dimensional homogeneity of zinc-coated steel wire for main rope of suspension bridge and glacing flatness are to guarantee the even and straight basis of main push-towing rope deadweight.The aerial spin processes (Air spinning) of U.S.'s initiative main rope of suspension bridge establishment in 1844 is called for short the AS method.At the scene of bridge construction establishment strand, require steel wire that certain radian is arranged, influence normally carrying out of " spinning " to prevent that steel wire is at random.U.S. Bethlehem Steel Company had developed prefabricate parallel steel wire strand (Prefabricated paralled wire strang) in 1969, was called for short the PWS method, made main push-towing rope set up stable more and safety.Injury-free and do not reduce the toughness plasticity index of steel wire for guaranteeing that Steel Wire Surface has a zinc coat of good antiseptic property, the requirement of " the main push-towing rope steel wire does not allow the cold working of mechanical alignment or any other form after zinc-plated " (No machine stralghtening or any other cold working ofwire shall be permitted after galvanizing) is arranged on traditional main rope of suspension bridge technical drawing.Thereby the manufacturing of such steel wire all is by the requirement of AS method in the world, the finishing operation of galvanizing operation as this steel wire.Diameter is that the zinc-coated wire dimensional accuracy of 5mm series can only reach ± 0.06mm, and the Freezone footpath of steel wire can only be accomplished about 5m, is equivalent to about every meter arc length rise 50mm, and the zinc layer can only be the crystalline state of molten zinc.Also once for the dimensional accuracy that improves steel wire, the Freezone footpath that increases steel wire and the compactness that improves the zinc layer, the steel wire after zinc-plated was carried out mechanical alignment and cold working, the fragility after the work hardening of whole invar silk increases and disabled in the past.
China, exposes after its inherent shortcoming from nineteen ninety-five Guangdong Humen Bridge employing AS method in the manufacture method of main rope of suspension bridge, and main rope of suspension bridge has subsequently all adopted the PWS manufactured.
Summary of the invention
The purpose of this invention is to provide and a kind ofly improve the steel wire dimensional accuracy, increase steel wire Freezone footpath and improve zinc layer compactness and do not reduce the manufacturing method of zinc-coated steel wire for main of zinc layer quality and steel wire toughness plasticity index.
For realizing above purpose, technical scheme of the present invention provides a kind of manufacturing method of zinc-coated steel wire for main rope of suspension bridge, it is characterized in that, zinc-coated wire is implemented the rule garden, and its method is:
(1). at first the steel wire after zinc-plated is placed on first pay off rack and second pay off rack of band back tension, steel wire enters nib or roller die through first guide roller and second guide roller, its drafts≤0.15mm;
(2). enter temperature then and be 100-300 ℃ induction heater heating, cool off at bosh the steel wire back of coming out:
(3) pass through regulating wheel and rubber pinch roll again, control tension force is 500-1000N, by gathering sill and cutter, enter the guide pipe of weaving silk, the import department of two take-up reels about extending to is tangential direction with wire loop, and the take-up reel diameter is adjusted at ∮ 1500-2200mm;
(4) at last will be wherein take-up reel counter-rotating, and to this take-up reel advance the steel wire guide pipe by corresponding radian curvature conversion importer to, just can realize batching automatically of different rotation directions half and half.
Described cutter is provided with the cutting to length device; Described guide pipe and the take-up reel of weaving silk has two groups that are complementary.
The present invention carries out rule garden by roller die and/or nib to zinc-coated wire to the steel wire after the galvanizing, to obtain the fine and close and positive steel wire of garden metric of zinc layer.On the device of certain tension force and uniform temperature, do simultaneously heating in short-term, obtaining the quite straight steel wire and the steel wire coil of left and right sides rotation direction, for the security and the durability of main rope of suspension bridge provides basic condition.
Any form machinery alignment and the cold working of zinc-plated back steel wire, the capital causes the toughness plasticity of zinc coat damage and steel wire to reduce, the present invention joins alignment, cold working and heat treatment three together, the raising of steel wire dimensional accuracy, be to finish, improved the compactness of zinc layer simultaneously by slight extension of the steel wire of roller die or nib; And alignment is to finish by stretching force and heat treatment; forward pull is by the pay off rack back tension; the deformation force of directive wheel frictional force and roller die or nib is formed; backward pull is by the regulating wheel differential force; rubber wheel pinches power and forms; the steel wire of belt tension heats by induction heater; when implementing alignment; the cold-working phenomenon that may cause through slight extension is replied; the shaped distortion of steel wire in roller die or the nib; mainly be evenly shaped to zinc coat; press the temperature computation of " cold working " of zinc; it is the plastic deformation in the time of≤4.2 ℃; even thereby base steel has slight flow harden; also eliminated when heating, the Freezone of steel wire directly increases, and is by having the pay off rack of back tension; the regulating wheel of directive wheel and belt tension and pinch roll are when forming certain tension force; steel wire passes through in the heating furnace of uniform temperature; become the good steel wire of linearity, in heating furnace, simultaneously the slight flow harden of extending of steel wire is replied, have good toughness plasticity index to guarantee steel wire.
Advantage of the present invention is:
1. the zinc-coated steel wire for main made of the present invention, its dimensional accuracy can be accomplished ± 0.04mm; The Freezone of steel wire directly reaches more than the 8.5m, is equivalent to below every meter arc length rise 30mm; The elongation after fracture of steel wire (original gauge length is 250mm) reaches more than 4%; The alternating bending of steel wire reaches more than 4 times; Zinc layer weight reaches 300g/m
2More than.
2. obtain steel wire and batch about rotation direction half and half requirement
For eliminating self reversing of main cable strand, steel wire rotation direction that require to form strand be about half and half, for example, by the strand that 127 steel wires are formed, need by 63 left-handed steel wires and 64 dextrorotation steel wire establishments, the present invention presses preseting length by two take-up reels, be called that scale is alternate to be batched, as long as make wherein take-up reel counter-rotating, and to this take-up reel advance the steel wire guide pipe by corresponding radian curvature conversion importer to, just can realize batching automatically of different rotation directions half and half.
3. by the requirement of main push-towing rope length, set the highest multiple length number of lumber recovery
Zinc-coated steel wire for main must be made up of a steel wire, joint when any connection production line is produced continuously comprises that raw material, half-finished electric connection all must cut only, and the present invention has the device of cutting to length, conversion take-up reel, as long as set by most economical multiple length, just can implementation and operation.
Description of drawings
Fig. 1 is a manufacturing process flow diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, be manufacturing process flow diagram of the present invention, its method is:
(1). at first the steel wire after zinc-plated 1 is placed on first pay off rack 2 and second pay off rack 3 of band back tension, steel wire 1 enters nib 5 or roller die 6, its drafts≤0.15mm through first guide roller 4 and second guide roller 7;
(2). enter temperature then and be 200 ℃ induction heater 8 heating, steel wire 1 comes out the back in bosh 9 coolings;
(3) pass through regulating wheel 10 and rubber pinch roll 11 again, control tension force is 700N, by gathering sill 12 and cutter 13, enter the guide pipe 14 of weaving silk, the import department of two take-up reels 15 about extending to is tangential direction with wire loop, and the take-up reel diameter is at ∮ 1900mm; Weave silk guide pipe 14 and take-up reel 15 has two groups that are complementary, and described cutter 13 is provided with the cutting to length device.
(4) at last will be wherein a take-up reel 15 counter-rotatings, and to this take-up reel 15 advance the steel wire guide pipe by corresponding radian curvature conversion importer to, just can realize batching automatically of different rotation directions half and half.
Operating personnel can be in operating desk 16 operations.
Technological parameter of the present invention mainly is drafts, heating-up temperature, tension force and speed.Its medium velocity is pressed heating furnace power and Steel Wire Surface situation and is done suitably to adjust and select, and the diameter tolerance of final steel wire total amount can be controlled in ± and 0.01mm guaranteed.
Following table is listed to be the main performance index that adopts three zinc-coated steel wire for main rope of suspension bridge of this invention manufacturing
As can be known from the above table, implement the steel wire that this invention obtained, have high dimension precision, quite straight steel wire, fine and close zinc coat, do not reduce the mechanical property of zinc-coated wire, be a kind of, be the security of main rope of suspension bridge and the durability condition that provides the foundation with the epoch-making steel wire manufacture method of PWS method establishment main push-towing rope.
Claims (3)
1. a manufacturing method of zinc-coated steel wire for main rope of suspension bridge is characterized in that, zinc-coated wire is implemented the rule garden, and its method is:
(1). at first the steel wire after zinc-plated (1) is placed on first pay off rack (2) and second pay off rack (3) of band back tension, steel wire (1) enters nib (5) or roller die (6), its drafts≤0.15mm through first guide roller (4) and second guide roller (7);
(2). enter temperature then and be 100-300 ℃ induction heater (8) heating, cool off at bosh (9) steel wire (1) back of coming out;
(3) pass through regulating wheel (10) and rubber pinch roll (11) again, control tension force is 500-1000N, by gathering sill (12) and cutter (13), enter the guide pipe of weaving silk (14), the import department of two take-up reels (15) about extending to, be tangential direction with wire loop, the take-up reel diameter is adjusted at ∮ 1500-2200mm;
(4) at last will be wherein a take-up reel (15) counter-rotating, and to this take-up reel (15) advance the steel wire guide pipe by corresponding radian curvature conversion importer to, just can realize batching automatically of different rotation directions half and half.
2. manufacturing method of zinc-coated steel wire for main rope of suspension bridge according to claim 1 is characterized in that, described cutter (13) is provided with the cutting to length device.
3. manufacturing method of zinc-coated steel wire for main rope of suspension bridge according to claim 1 is characterized in that, described guide pipe of weaving silk (14) and take-up reel (15) have two groups that are complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100259089A CN100371101C (en) | 2005-05-18 | 2005-05-18 | Manufacturing method of zinc-coated steel wire for main rope of suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100259089A CN100371101C (en) | 2005-05-18 | 2005-05-18 | Manufacturing method of zinc-coated steel wire for main rope of suspension bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1864886A CN1864886A (en) | 2006-11-22 |
| CN100371101C true CN100371101C (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100259089A Expired - Fee Related CN100371101C (en) | 2005-05-18 | 2005-05-18 | Manufacturing method of zinc-coated steel wire for main rope of suspension bridge |
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| Country | Link |
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| CN (1) | CN100371101C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311288B (en) * | 2007-05-24 | 2010-05-26 | 宝山钢铁股份有限公司 | Wire rod for producting1770Mpa bridge cable galvanized steel wire and method for manufacturing same |
| CN102744297B (en) * | 2012-07-30 | 2014-10-29 | 西部超导材料科技股份有限公司 | Electrical heating tension straightening machine for small-dimension profiled bars |
| CN111424548B (en) * | 2020-04-07 | 2024-05-31 | 中交二公局第二工程有限公司 | Main cable strand forming device of suspension bridge and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6223977A (en) * | 1985-07-22 | 1987-01-31 | Sumitomo Electric Ind Ltd | Manufacture of brass plates steel wire |
| JPH04238621A (en) * | 1991-01-08 | 1992-08-26 | Sumitomo Metal Ind Ltd | Device and method for manufacturing wire rod |
| JPH11117051A (en) * | 1997-10-15 | 1999-04-27 | Hitachi Cable Ltd | Production of thunder resistant electric wire |
| CN1450181A (en) * | 2002-04-09 | 2003-10-22 | 广东省钢铁研究所 | Composite working technology of steel wire heat treatment and straigthening and device thereof |
| CN2597119Y (en) * | 2002-12-30 | 2004-01-07 | 赵怀友 | Device for continuously producing low-relaxed prestress steel wire |
-
2005
- 2005-05-18 CN CNB2005100259089A patent/CN100371101C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6223977A (en) * | 1985-07-22 | 1987-01-31 | Sumitomo Electric Ind Ltd | Manufacture of brass plates steel wire |
| JPH04238621A (en) * | 1991-01-08 | 1992-08-26 | Sumitomo Metal Ind Ltd | Device and method for manufacturing wire rod |
| JPH11117051A (en) * | 1997-10-15 | 1999-04-27 | Hitachi Cable Ltd | Production of thunder resistant electric wire |
| CN1450181A (en) * | 2002-04-09 | 2003-10-22 | 广东省钢铁研究所 | Composite working technology of steel wire heat treatment and straigthening and device thereof |
| CN2597119Y (en) * | 2002-12-30 | 2004-01-07 | 赵怀友 | Device for continuously producing low-relaxed prestress steel wire |
Non-Patent Citations (1)
| Title |
|---|
| 悬索桥缆索用镀锌钢丝的生产. 张正基，孙金茂，张伟君.金属制造，第31卷第1期. 2005 * |
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| CN1864886A (en) | 2006-11-22 |
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Owner name: BAOSTEEL GROUP NANTONG WIRE PRODUCTS CO., LTD. Free format text: FORMER OWNER: SHANGHAI SHENJIA METAL PRODUCTS CO., LTD. Effective date: 20100813 |
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Free format text: CORRECT: ADDRESS; FROM: 200090 NO.219, HUANGXING ROAD, SHANGHAI CITY TO: 226002 NO.8, BAOGANG ROAD, CHENQIAO STREET, GANGZHA DISTRICT, NANTONG CITY, JIANGSU PROVINCE |
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Effective date of registration: 20100813 Address after: Chen Qiao Road Gangzha District 226002 Street Baosteel in Jiangsu province Nantong City No. 8 Patentee after: BAOSTEEL GROUP NANTONG WIRE PRODUCTS Co.,Ltd. Address before: 200090 No. 219 Huang Xing Road, Shanghai Patentee before: SHANGHAI SHENJIA METAL PRODUCTS Co.,Ltd. |
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Granted publication date: 20080227 |