CN102747624A - Low-carbon steel stranded wire and production process thereof - Google Patents
Low-carbon steel stranded wire and production process thereof Download PDFInfo
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- CN102747624A CN102747624A CN2012101971687A CN201210197168A CN102747624A CN 102747624 A CN102747624 A CN 102747624A CN 2012101971687 A CN2012101971687 A CN 2012101971687A CN 201210197168 A CN201210197168 A CN 201210197168A CN 102747624 A CN102747624 A CN 102747624A
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Abstract
The invention relates to a low-carbon steel stranded wire and a production process thereof. The low-carbon steel stranded wire is characterized by adopting low-carbon steel (SWRH22A steel or 20#-25#) to serve as steel strand production raw materials, and end product steel strand is obtained through surface treatment, drawing, normalizing heat treatment, galvanization, drawing, stranding and rope combining. The low-carbon steel stranded wire is fewer in production process, low in energy consumption, mould consumption and wire broken rate and high in labor productivity.
Description
Technical field
The present invention relates to a kind of mild steel twisted wire and production technology thereof.
Background technology
High-carbon steel is high because of its intensity, and good toughness has the heat-treated sturcture of tiny homogeneous, and can satisfy drawing, twist with the fingers the needs of system and performance homogeneity, be raw material so traditional steel cable manufacturing industry all adopts it.Its machining process route is roughly: wire raw material wire rods is removed hot rolling oxide skin, and------(intermediate heat-treatment) normalizing---dry type drawing (compression ratio is about 97%)---is twisted with the fingers thigh and is closed rope in the dry type drawing.But because of its strain hardening coefficient is bigger, promptly in process, compression ratio surpasses after 85%, and intensity sharply rises, and causes its toughness to worsen.So in process, need be through heat treatment repeatedly to eliminate its workhardness and to guarantee final performance.Yet so just not only caused the waste of resource, but also hindered the raising of labor productivity.In addition, because high-carbon steel has higher intensity and hardness, so energy consumption and mould consumption is higher in the production process, the difficult control of wire broken rate.
And mild steel does not have the advantage of high-carbon steel, and its production process is long, energy consumption, mould consumption height, and wire broken rate is high, and labor productivity is low.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide that a kind of production process is few, energy consumption, mould consumption, wire broken rate is low, labor productivity is high mild steel twisted wire and production technology thereof.
The objective of the invention is to realize like this:
Mild steel twisted wire of the present invention and production technology thereof, it is selected to be used as steel wire rope with low-carbon (LC) SWRH22A steel or 20#-25# steel and makes raw material, and its production craft step is following:
Step 1, surface treatment place ￠ 5.5mm stockline material on the pay off rack, remove hot rolling oxide skin through mechanical dephosphorization equipment, clean; Advance rinse bath then and clean, descaling bath carries out pickling, gets into phosphatization equipment again and carries out the phosphatization processing; Get into the drying plant oven dry at last, get the preliminary treatment wire rod;
Step 2, drawing get the preliminary treatment wire rod with step 1 and place on the drawbench, carry out the multi-pass drawing, get the semi-finished product wire rod, the I-beam wheel take-up;
Step 3, water-bath heat treatment, zinc-platedly step 2 is got the semi-finished product wire rod place on the pay off rack, through the heating of four-part form heat-treatment furnace, heating-up temperature is: 860 ℃ ~ 920 ℃; Get into tank then and carry out water-quenching; Oven dry, water-bath agent temperature is 85 ℃, concentration is 5%; Carry out zinc plating at last, galvanizing solution is ZnSO
47H2O, concentration is 350-500g/L, and pH value is 1.5-3.0, and electroplating current is 650A/ million, and take-up speed is the 50m/ branch, cooling gets the semi-finished product wire rod, take-up;
Step 4, wet type drawing get the semi-finished product wire rod with step 3 and place on the drawbench, carry out the multi-pass drawing, and each passage wire drawing die compression angle is 13-14 °, and lubricant adopts the drawing lubricant agent special, and concentration is 2% ~ 3%, get the finished product wire rod, the I-beam wheel take-up;
Step 5, twist with the fingers strand to become rope that step 4 is got the semi-finished product wire rod to place and twist with the fingers thigh on the strander and close rope, the finished steel twisted wire.
Four-part form heat-treatment furnace heating-up temperature in the step 3 is 860 ℃, 880 ℃, 900 ℃, 920 ℃.
The passage of the multi-pass drawing of step 4 kind is: 1.4-1.306-1.19-1.084-0.988-0.9-0.82-0.747-0.681-0.62-0.5 65-0.50-0.45-0.40.
Mild steel twisted wire of the present invention and production technology thereof have the following advantages:
1, the new material that the selection of mild steel twisted wire of the present invention and production technology thereof need not be traditional; Make raw material and be used as steel wire rope with low-carbon (LC) SWRH22A steel or 20#-25# steel; Through suitably processing and processing; Can obtain the tissue and the performance of homogeneous equally, reach various rope making wire standard-requireds fully.
2, for the low-carbon (LC) Steel Strand:
1. intermediate heat-treatment only adopts a water-bath to quench, and the austenitizing heating-up temperature can slightly reduce, and then has 920-960 ℃ of high-carbon steel heat treatment temperature to drop to 860-920 ℃ like the 22# steel.Compare with traditional handicraft, saved both mass energy consumption, obviously environmental pollution has dysgenic lead bath isothermal to decompose heat treatment to the workman is healthy again, thereby has reduced production cost, has reduced supplementary product onsumption and power consumption, but has improved workman's operating environment simultaneously.
2. strengthen operation drawing compression ratio (compression ratio can reach more than 95%), simplified production process, improved production efficiency.
3. the wire drawing die compression angle becomes 13-14 ° by 11-12 ° of high-carbon steel, and lubricant concentration 5% during by drawing high-carbon steel drops to about 2-3%.
3 compare with high-carbon steel, and under the prerequisite of same intensity, mild steel has higher toughness.Therefore, compare, have following characteristics with high-carbon steel:
1. can increase the drawing total draught, total draught can be increased to more than 95% by original 92%;
2. the zinc layer loss late in the time of can reducing the steel wire drawing, for example the following rope making wire zinc of ￠ 0.30mm layer loss reduced to less than 10% by original 30%;
3. the power consumption in the time of can reducing pulling capacity and drawing, during like wet drawing power consumption can reduce about 16%, but about 32 yuan of steel wire saves energy per ton;
4. can reduce the wire drawing die loss, by wire drawing die operational maintenance requirement, wire drawing die drops to 5/ton by original 15/ton during wet drawing;
5. the wire broken rate in the time of can obviously reducing wire drawing, wire broken rate drops to 5.4 times per ton by original 14 times per ton.This has not only improved the lumber recovery when producing, and has improved labor productivity.
The specific embodiment
The present invention relates to a kind of mild steel twisted wire and production technology thereof; Its select need not be traditional new material; Make raw material and be used as steel wire rope with low-carbon (LC) SWRH22A steel or 20#-25# steel; Through suitably processing and processing, can obtain the tissue and the performance of homogeneous equally, reach various rope making wire standard-requireds fully.
Its production craft step is following:
Step 1, surface treatment place ￠ 5.5mm stockline material on the pay off rack, remove hot rolling oxide skin through mechanical dephosphorization equipment, clean; Advance rinse bath then and clean, descaling bath carries out pickling, gets into phosphatization equipment again and carries out the phosphatization processing; Get into the drying plant oven dry at last, get the preliminary treatment wire rod;
Step 2, drawing get the preliminary treatment wire rod with step 1 and place on the drawbench, carry out the multi-pass drawing, get the semi-finished product wire rod, the I-beam wheel take-up;
Step 3, water-bath heat treatment, zinc-platedly step 2 is got the semi-finished product wire rod place on the pay off rack, through the heating of four-part form heat-treatment furnace, heating-up temperature is followed successively by: 860 ℃, 880 ℃, 900 ℃, 920 ℃; Get into tank then and carry out water-quenching; Oven dry, water-bath agent temperature is 85 ℃, concentration is 5%; Carry out zinc plating at last, galvanizing solution is ZnSO
47H2O, concentration is 350-500g/L, and pH value is 1.5-3.0, and electroplating current is 650A/ million, and take-up speed is the 50m/ branch, cooling gets the semi-finished product wire rod, take-up;
Four-part form heat-treatment furnace heating in the above-mentioned steps three, heating-up temperature can also be followed successively by: 865 ℃, 880 ℃, 895 ℃, 910 ℃.
Step 4, wet type drawing get the semi-finished product wire rod with step 3 and place on the drawbench; Carry out the multi-pass drawing, the passage of multi-pass drawing is: 1.4-1.306-1.19-1.084-0.988-0.9-0.82-0.747-0.681-0.62-0.5 65-0.50-0.45-0.40, and each passage wire drawing die compression angle is 13-14 °; Lubricant adopts the drawing lubricant agent special; Concentration is 2% ~ 3%, gets the finished product wire rod, the I-beam wheel take-up;
Step 5, twist with the fingers strand to become rope that step 4 is got the semi-finished product wire rod to place and twist with the fingers thigh on the strander and close rope, the finished steel twisted wire.
Claims (4)
1. mild steel twisted wire and production technology thereof, it is characterized in that: its selects to be used as steel wire rope manufacturing raw material with low-carbon (LC) SWRH22A steel or 20#-25# steel, and its production craft step is following:
Step 1, surface treatment place ￠ 5.5mm stockline material on the pay off rack, remove hot rolling oxide skin through mechanical dephosphorization equipment, clean; Advance rinse bath then and clean, descaling bath carries out pickling, gets into phosphatization equipment again and carries out the phosphatization processing; Get into the drying plant oven dry at last, get the preliminary treatment wire rod;
Step 2, drawing get the preliminary treatment wire rod with step 1 and place on the drawbench, carry out the multi-pass drawing, get the semi-finished product wire rod, the I-beam wheel take-up;
Step 3, water-bath heat treatment, zinc-platedly step 2 is got the semi-finished product wire rod place on the pay off rack, through the heating of four-part form heat-treatment furnace, heating-up temperature is: 860 ℃ ~ 920 ℃; Get into tank then and carry out water-quenching; Oven dry, water-bath agent temperature is 85 ℃, concentration is 5%; Carry out zinc plating at last, galvanizing solution is ZnSO
47H2O, concentration is 350-500g/L, and pH value is 1.5-3.0, and electroplating current is 650A/ million, and take-up speed is the 50m/ branch, cooling gets the semi-finished product wire rod, take-up;
Step 4, wet type drawing get the semi-finished product wire rod with step 3 and place on the drawbench, carry out the multi-pass drawing, and each passage wire drawing die compression angle is 13-14 °, and lubricant adopts the drawing lubricant agent special, and concentration is 2% ~ 3%, get the finished product wire rod, the I-beam wheel take-up;
Step 5, twist with the fingers strand to become rope that step 4 is got the semi-finished product wire rod to place and twist with the fingers thigh on the strander and close rope, the finished steel twisted wire.
2. a kind of mild steel twisted wire according to claim 1 and production technology thereof is characterized in that: the four-part form heat-treatment furnace heating-up temperature in the step 3 is 860 ℃, 880 ℃, 900 ℃, 920 ℃.
3. a kind of mild steel twisted wire according to claim 1 and production technology thereof is characterized in that: the passage of the multi-pass drawing of step 4 kind is: 1.4-1.306-1.19-1.084-0.988-0.9-0.82-0.747-0.681-0.62-0.5 65-0.50-0.45-0.40.
4. a kind of mild steel twisted wire according to claim 1 and production technology thereof is characterized in that: the raw steel filament diameter of step 4 kind is 0.86-0.91mm, after copper facing, obtains diameter 1.09-1.12mm welding wire semi-finished product, and thickness of coating is 200-220um.
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926246A (en) * | 2012-11-22 | 2013-02-13 | 江苏赛福天钢索股份有限公司 | Manufacturing method of steel wire ropes for high-rise elevators |
| CN102926244A (en) * | 2012-11-21 | 2013-02-13 | 江苏赛福天钢索股份有限公司 | Manufacturing method of steel wire ropes for elevators |
| CN103161086A (en) * | 2013-04-07 | 2013-06-19 | 江苏法尔胜技术开发中心有限公司 | Minuteness steel wire rope and production method thereof |
| CN103352381A (en) * | 2013-07-25 | 2013-10-16 | 张家港市胜达钢绳有限公司 | Production method of high-strength steel rope |
| CN103643155A (en) * | 2013-11-20 | 2014-03-19 | 江苏天舜金属材料集团有限公司 | Processing method of fast-quenched prestressed steel strand |
| CN103643572A (en) * | 2013-11-21 | 2014-03-19 | 江苏天舜金属材料集团有限公司 | Production method for thermal treatment prestressed steel strand |
| CN103952932A (en) * | 2014-04-28 | 2014-07-30 | 天津冶金钢线钢缆集团有限公司 | Manufacture method for HDPE hot dip galvanizing prestressed steel strands used for bridge cable ropes |
| CN104372895A (en) * | 2014-05-21 | 2015-02-25 | 江苏苏博特新材料股份有限公司 | High-performance reinforcing steel bar and preparation method thereof |
| CN104451434A (en) * | 2014-11-07 | 2015-03-25 | 江苏天舜金属材料集团有限公司 | Strongly corrosion-resistant stranded galvanized steel wire and manufacturing method thereof |
| CN105499301A (en) * | 2016-01-11 | 2016-04-20 | 山西榆次远大线材制品有限公司 | Production device for hot-galvanized special-shaped steel wires |
| CN106435099A (en) * | 2016-12-02 | 2017-02-22 | 中钢集团郑州金属制品研究院有限公司 | Steel wire induction heating water bath quenching heat treatment technology |
| CN108213095A (en) * | 2017-12-28 | 2018-06-29 | 东莞科力线材技术有限公司 | A kind of fan net counter-bending steel wire of super-strength thin footpath and preparation method thereof |
| CN108555040A (en) * | 2017-12-28 | 2018-09-21 | 东莞科力线材技术有限公司 | A kind of toy axle accurate circular arc quadrangle steel wire and preparation method thereof |
| CN109433835A (en) * | 2018-10-30 | 2019-03-08 | 上海衍衡新材料科技有限公司 | A kind of production method of big specification twisted wire plating welding wire |
| CN109629279A (en) * | 2018-12-13 | 2019-04-16 | 郑州元素工具技术有限公司 | A kind of production method of annular wire rope |
| CN112547818A (en) * | 2020-11-24 | 2021-03-26 | 梓兰特线（厦门）科技有限公司 | Production method of Z-shaped special-shaped steel wire |
| CN113089349A (en) * | 2021-03-09 | 2021-07-09 | 常州上友电力科技有限公司 | Production process of copper-plated steel strand |
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| CN1740438A (en) * | 2005-08-25 | 2006-03-01 | 江苏法尔胜股份有限公司 | Bullet wire cable and its production process |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102926244A (en) * | 2012-11-21 | 2013-02-13 | 江苏赛福天钢索股份有限公司 | Manufacturing method of steel wire ropes for elevators |
| CN102926244B (en) * | 2012-11-21 | 2016-04-06 | 江苏赛福天钢索股份有限公司 | A kind of preparation method of elevator wire rope |
| CN102926246A (en) * | 2012-11-22 | 2013-02-13 | 江苏赛福天钢索股份有限公司 | Manufacturing method of steel wire ropes for high-rise elevators |
| CN102926246B (en) * | 2012-11-22 | 2016-08-31 | 江苏赛福天钢索股份有限公司 | A kind of manufacture method of high rise elevator steel wire rope |
| CN103161086A (en) * | 2013-04-07 | 2013-06-19 | 江苏法尔胜技术开发中心有限公司 | Minuteness steel wire rope and production method thereof |
| CN103161086B (en) * | 2013-04-07 | 2015-04-15 | 江苏法尔胜技术开发中心有限公司 | Production method of minuteness steel wire rope |
| CN103352381A (en) * | 2013-07-25 | 2013-10-16 | 张家港市胜达钢绳有限公司 | Production method of high-strength steel rope |
| CN103643155A (en) * | 2013-11-20 | 2014-03-19 | 江苏天舜金属材料集团有限公司 | Processing method of fast-quenched prestressed steel strand |
| CN103643155B (en) * | 2013-11-20 | 2015-09-09 | 江苏天舜金属材料集团有限公司 | A kind of working method of fast quench prestress wire |
| CN103643572B (en) * | 2013-11-21 | 2016-01-06 | 江苏天舜金属材料集团有限公司 | A kind of manufacture method of heat treatment prestress wire |
| CN103643572A (en) * | 2013-11-21 | 2014-03-19 | 江苏天舜金属材料集团有限公司 | Production method for thermal treatment prestressed steel strand |
| CN103952932A (en) * | 2014-04-28 | 2014-07-30 | 天津冶金钢线钢缆集团有限公司 | Manufacture method for HDPE hot dip galvanizing prestressed steel strands used for bridge cable ropes |
| CN104372895A (en) * | 2014-05-21 | 2015-02-25 | 江苏苏博特新材料股份有限公司 | High-performance reinforcing steel bar and preparation method thereof |
| CN104372895B (en) * | 2014-05-21 | 2016-09-14 | 江苏苏博特新材料股份有限公司 | A kind of high performance steel |
| CN104451434A (en) * | 2014-11-07 | 2015-03-25 | 江苏天舜金属材料集团有限公司 | Strongly corrosion-resistant stranded galvanized steel wire and manufacturing method thereof |
| WO2017121312A1 (en) * | 2016-01-11 | 2017-07-20 | 山西榆次远大线材制品有限公司 | Hot galvanizing profile wire production equipment |
| CN105499301A (en) * | 2016-01-11 | 2016-04-20 | 山西榆次远大线材制品有限公司 | Production device for hot-galvanized special-shaped steel wires |
| CN106435099B (en) * | 2016-12-02 | 2018-05-25 | 中钢集团郑州金属制品研究院有限公司 | A kind of steel wire induction heating water-bath quenching heat treatment technique |
| CN106435099A (en) * | 2016-12-02 | 2017-02-22 | 中钢集团郑州金属制品研究院有限公司 | Steel wire induction heating water bath quenching heat treatment technology |
| CN108213095A (en) * | 2017-12-28 | 2018-06-29 | 东莞科力线材技术有限公司 | A kind of fan net counter-bending steel wire of super-strength thin footpath and preparation method thereof |
| CN108555040A (en) * | 2017-12-28 | 2018-09-21 | 东莞科力线材技术有限公司 | A kind of toy axle accurate circular arc quadrangle steel wire and preparation method thereof |
| CN109433835A (en) * | 2018-10-30 | 2019-03-08 | 上海衍衡新材料科技有限公司 | A kind of production method of big specification twisted wire plating welding wire |
| CN109629279A (en) * | 2018-12-13 | 2019-04-16 | 郑州元素工具技术有限公司 | A kind of production method of annular wire rope |
| CN112547818A (en) * | 2020-11-24 | 2021-03-26 | 梓兰特线（厦门）科技有限公司 | Production method of Z-shaped special-shaped steel wire |
| CN113089349A (en) * | 2021-03-09 | 2021-07-09 | 常州上友电力科技有限公司 | Production process of copper-plated steel strand |
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Application publication date: 20121024 |