CN104451441A - Prestressed wire for bridge and production process of prestressed wire - Google Patents
Prestressed wire for bridge and production process of prestressed wire Download PDFInfo
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- CN104451441A CN104451441A CN201410622565.3A CN201410622565A CN104451441A CN 104451441 A CN104451441 A CN 104451441A CN 201410622565 A CN201410622565 A CN 201410622565A CN 104451441 A CN104451441 A CN 104451441A
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Abstract
The invention relates to a prestressed wire for a bridge. The wire comprises the following chemical components in percentage by weight: 0.45%-0.65% of C, 1.5%-2.3% of Si, 0.4%-2.2% of Mn, 0.3%-0.7% of Ni, 0.1%-0.8% of Cr, 0.07%-0.35% of Nb, 0.02%-0.6% of Ti, 0.05%-0.1% of V, 0.01%-0.05% of Mo, less than 0.015% of P, less than 0.015% of S, 0.02%-0.06% of composite rare earth, and the balance of iron and inevitable other trace impurities. A production process of the prestressed wire disclosed by the invention comprises the following processes of pickling, phosphorization, saponifying, cold rolling, cold drawing and galvanizing. The prestressed wire disclosed by the invention is applied to the bridge construction, so that a lot of bridge construction materials can be saved; the construction time is shortened; and the engineering quality stability is ensured. The prestressed wire has relatively high corrosion resistance and relatively good fatigue resistance, so that the service life of a cable is greatly prolonged; and the economic benefits and social benefits are significant.
Description
Technical field
The present invention relates to a kind of compressor wire and production technique thereof, specifically a kind of bridge compressor wire and production technique thereof, belong to Metal smelting Technology field.
Background technology
Along with air-polluting increases the weight of day by day, the endurance issues of Bridge Cable Systems starts to manifest, the cable extent of corrosion of a lot of cable bridge and speed, well beyond expection, design 30 years and change cable once, have often used more than 10 year afterwards just because the phenomenon that cable breaks etc. is serious appears in various corrosion.Even in order to ensure the security of bridge, change cable in advance.The replacing of cable needs a large amount of manpower and materials, causes huge financial loss, therefore studies extremely urgent to the corrosion of Bridge Cable Systems.Industry policy and the market requirement had a high potential of country, all call the appearance of the novel bridge cable compressor wire of a kind of high-intensity high-tenacity high fatigue property and highly corrosion resistant.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, a kind of bridge compressor wire and production technique thereof are provided, by adjustment chemical composition, improving technique parameter, be beneficial to reach raising cable corrosion resistance, improve counter-bending fatigue performance and corrosion resistance nature, the object increased the service life.
In order to solve above technical problem, the invention provides a kind of bridge compressor wire, the Chemical Composition of described steel wire weight percent is: C:0.45 ~ 0.65%, Si:1.5 ~ 2.3%, Mn:0.4 ~ 2.2%, Ni:0.3 ~ 0.7%, Cr:0.1 ~ 0.8%, Nb:0.07 ~ 0.35%, Ti:0.02 ~ 0.6%, V:0.05 ~ 0.1%, Mo:0.01 ~ 0.05%, P, S content is less than 0.015%, compound rare-earth: 0.02 ~ 0.06%, and surplus is iron and other trace impurities inevitable.
Further restriction technical scheme of the present invention, aforesaid bridge compressor wire, in described compound rare-earth, comprises following component: Ce:12 ~ 16%, Sc:15 ~ 33%, Gd:11 ~ 16%, Pr:15 ~ 23% by weight percentage, and surplus is La.
Aforesaid bridge compressor wire, the Chemical Composition of described steel wire weight percent is: C:0.45%, Si:1.5%, Mn:0.4%, Ni:0.3%, Cr:0.1%, Nb:0.07%, Ti:0.02%, V:0.05%, Mo:0.01%, P:0.01%, S:0.008%, compound rare-earth: 0.02%, surplus is iron and other trace impurities inevitable; In described compound rare-earth, comprise following component by weight percentage: Ce:12%, Sc:15%, Gd:11%, Pr:15%, surplus is La.
Aforesaid bridge compressor wire, the Chemical Composition of described steel wire weight percent is: C:0.55%, Si:1.9%, Mn:1.4%, Ni:0.5%, Cr:0.6%, Nb:0.21%, Ti:0.3%, V:0.74%, Mo:0.03%, P:0.012%, S:0.009%, compound rare-earth: 0.04%, surplus is iron and other trace impurities inevitable;
In described compound rare-earth, comprise following component by weight percentage: Ce:14%, Sc:19%, Gd:15%, Pr:20%, surplus is La.
Aforesaid bridge compressor wire, the Chemical Composition of described steel wire weight percent is: C:0.65%, Si:2.3%, Mn:2.2%, Ni:0.7%, Cr:0.8%, Nb:0.35%, Ti:0.6%, V:0.1%, Mo:0.05%, P:0.014%, S:0.015%, compound rare-earth: 0.06%, surplus is iron and other trace impurities inevitable;
In described compound rare-earth, comprise following component by weight percentage: Ce:16%, Sc:33%, Gd:16%, Pr:23%, surplus is La.
A kind of bridge compressor wire production technique, comprises pickling, phosphatization, saponification, cold rolling, cold-drawn and zincincation,
By the steel wire produced according to claim 1 by carrying out pickling in the dilute sulphuric acid of 15%-30%, pickling temperature is 60-65 DEG C, pickling time 20-25min;
(2) in phosphate solution, carry out bonderizing, acidity pH value is 5.5-6.5, phosphating time 8-20min, phosphatization temperature 75-90 DEG C;
(3) carry out saponification process, the concentration of saponification liquor is 75Kg/m3 water, and temperature is 55 ± 5 DEG C, and saponification time is 10-20min;
(4) the steel wire after process is produced the steel wire of required specification through cold rolling and cold-drawn operation, then through low-temperaturetempering process;
(5) sent in galvanizing equipment by steel wire and carry out zinc coating operations, zinc temperature is 480-520 DEG C, and galvanizing time is 40-50s, and electroplating current is 253-265A.
Aforesaid bridge compressor wire production technique, described step (4) in tempering process, first at the temperature of 230-250 DEG C, be incubated 4-6min, then temperature remained on 180-200 DEG C, maintain 15-20min, last air cooling is to room temperature.
Further, aforesaid bridge compressor wire production technique, first cleans Steel Wire Surface before described step zinc coating operations (5), removing surface oxidation iron and impurity.
Beneficial effect of the present invention: compressor wire of the present invention is applied in bridge construction, a large amount of bridge construction materials can be saved, shorten building time, ensure construction quality stability, because it has higher corrosion resistance nature and good fatigue performance, greatly can improve cable work-ing life, economic benefit and social benefit remarkable.This pot galvanize compressor wire, due to its distinctive antiseptic property and higher fatigue performance, is estimated the work-ing life more than one times can improving cable, is had the very strong market competitiveness.
Embodiment
embodiment 1
A kind of bridge compressor wire that the present embodiment provides, the Chemical Composition of steel wire weight percent is: C:0.45%, Si:1.5%, Mn:0.4%, Ni:0.3%, Cr:0.1%, Nb:0.07%, Ti:0.02%, V:0.05%, Mo:0.01%, P:0.01%, S:0.008%, compound rare-earth: 0.02%, surplus is iron and other trace impurities inevitable; In described compound rare-earth, comprise following component by weight percentage: Ce:12%, Sc:15%, Gd:11%, Pr:15%, surplus is La.
The compressor wire production technique of the present embodiment, comprises pickling, phosphatization, saponification, cold rolling, cold-drawn and zincincation,
By the steel wire produced according to said components by carrying out pickling in the dilute sulphuric acid of 15%, pickling temperature is 65 DEG C, pickling time 25min;
(2) in phosphate solution, carry out bonderizing, acidity pH value is 5.5, phosphating time 8min, phosphatization temperature 75 DEG C;
(3) carry out saponification process, the concentration of saponification liquor is 75Kg/m3 water, and temperature is 50 DEG C, and saponification time is 20min;
(4) the steel wire after process is produced the steel wire of required specification through cold rolling and cold-drawn operation, then through low-temperaturetempering process, tempering process comprises, first at the temperature of 230 DEG C, be incubated 6min, then temperature remained on 180 DEG C, maintain 20min, last air cooling is to room temperature;
(5) clean Steel Wire Surface, removing surface oxidation iron and impurity, then sent in galvanizing equipment by steel wire and carry out zinc coating operations, zinc temperature is 480 DEG C, and galvanizing time is 50s, and electroplating current is 265A.
embodiment 2
A kind of bridge compressor wire that the present embodiment provides, the Chemical Composition of described steel wire weight percent is: C:0.55%, Si:1.9%, Mn:1.4%, Ni:0.5%, Cr:0.6%, Nb:0.21%, Ti:0.3%, V:0.74%, Mo:0.03%, P:0.012%, S:0.009%, compound rare-earth: 0.04%, surplus is iron and other trace impurities inevitable;
In described compound rare-earth, comprise following component by weight percentage: Ce:14%, Sc:19%, Gd:15%, Pr:20%, surplus is La.
The compressor wire production technique of the present embodiment, comprises pickling, phosphatization, saponification, cold rolling, cold-drawn and zincincation,
By the steel wire produced according to said components by carrying out pickling in the dilute sulphuric acid of 20%, pickling temperature is 62 DEG C, pickling time 22min;
(2) in phosphate solution, carry out bonderizing, acidity pH value is 6.0, phosphating time 15min, phosphatization temperature 80 DEG C;
(3) carry out saponification process, the concentration of saponification liquor is 75Kg/m3 water, and temperature is 55 DEG C, and saponification time is 15min;
(4) the steel wire after process is produced the steel wire of required specification through cold rolling and cold-drawn operation, then through low-temperaturetempering process; Tempering process comprises, and first at the temperature of 245 DEG C, is incubated 5min, then temperature is remained on 190 DEG C, and maintain 18min, last air cooling is to room temperature;
(5) first clean Steel Wire Surface, removing surface oxidation iron and impurity, sent into by steel wire in galvanizing equipment and carry out zinc coating operations, zinc temperature is 495 DEG C, and galvanizing time is 45s, and electroplating current is 260A.
embodiment 3
A kind of bridge compressor wire that the present embodiment provides, the Chemical Composition of described steel wire weight percent is: C:0.65%, Si:2.3%, Mn:2.2%, Ni:0.7%, Cr:0.8%, Nb:0.35%, Ti:0.6%, V:0.1%, Mo:0.05%, P:0.014%, S:0.015%, compound rare-earth: 0.06%, surplus is iron and other trace impurities inevitable;
In described compound rare-earth, comprise following component by weight percentage: Ce:16%, Sc:33%, Gd:16%, Pr:23%, surplus is La.
The compressor wire production technique of the present embodiment, comprises pickling, phosphatization, saponification, cold rolling, cold-drawn and zincincation,
By the steel wire produced according to said components by carrying out pickling in the dilute sulphuric acid of 30%, pickling temperature is 60 DEG C, pickling time 20min;
(2) in phosphate solution, carry out bonderizing, acidity pH value is 6.5, phosphating time 20min, phosphatization temperature 90 DEG C;
(3) carry out saponification process, the concentration of saponification liquor is 75Kg/m3 water, and temperature is 60 DEG C, and saponification time is 10min;
(4) the steel wire after process is produced the steel wire of required specification through cold rolling and cold-drawn operation, then through low-temperaturetempering process; Tempering process comprises, and first at the temperature of 250 DEG C, is incubated 4min, then temperature is remained on 200 DEG C, and maintain 15min, last air cooling is to room temperature;
(5) first clean Steel Wire Surface, removing surface oxidation iron and impurity, sent into by steel wire in galvanizing equipment and carry out zinc coating operations, zinc temperature is 520 DEG C, and galvanizing time is 40s, and electroplating current is 253A.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (8)
1. bridge compressor wire, is characterized in that the Chemical Composition of described steel wire weight percent is: C:0.45 ~ 0.65%, Si:1.5 ~ 2.3%, Mn:0.4 ~ 2.2%, Ni:0.3 ~ 0.7%, Cr:0.1 ~ 0.8%, Nb:0.07 ~ 0.35%, Ti:0.02 ~ 0.6%, V:0.05 ~ 0.1%, Mo:0.01 ~ 0.05%, P, S content is less than 0.015%, compound rare-earth: 0.02 ~ 0.06%, surplus is iron and other trace impurities inevitable.
2. bridge compressor wire according to claim 1, is characterized in that: in described compound rare-earth, comprises following component by weight percentage: Ce:12 ~ 16%, Sc:15 ~ 33%, Gd:11 ~ 16%, Pr:15 ~ 23%, surplus is La.
3. bridge compressor wire according to claim 1, is characterized in that: the Chemical Composition of described steel wire weight percent is: C:0.45%, Si:1.5%, Mn:0.4%, Ni:0.3%, Cr:0.1%, Nb:0.07%, Ti:0.02%, V:0.05%, Mo:0.01%, P:0.01%, S:0.008%, compound rare-earth: 0.02%, surplus is iron and other trace impurities inevitable;
In described compound rare-earth, comprise following component by weight percentage: Ce:12%, Sc:15%, Gd:11%, Pr:15%, surplus is La.
4. bridge compressor wire according to claim 1, is characterized in that: the Chemical Composition of described steel wire weight percent is: C:0.55%, Si:1.9%, Mn:1.4%, Ni:0.5%, Cr:0.6%, Nb:0.21%, Ti:0.3%, V:0.74%, Mo:0.03%, P:0.012%, S:0.009%, compound rare-earth: 0.04%, surplus is iron and other trace impurities inevitable;
In described compound rare-earth, comprise following component by weight percentage: Ce:14%, Sc:19%, Gd:15%, Pr:20%, surplus is La.
5. bridge compressor wire according to claim 1, is characterized in that: the Chemical Composition of described steel wire weight percent is: C:0.65%, Si:2.3%, Mn:2.2%, Ni:0.7%, Cr:0.8%, Nb:0.35%, Ti:0.6%, V:0.1%, Mo:0.05%, P:0.014%, S:0.015%, compound rare-earth: 0.06%, surplus is iron and other trace impurities inevitable;
In described compound rare-earth, comprise following component by weight percentage: Ce:16%, Sc:33%, Gd:16%, Pr:23%, surplus is La.
6. a bridge compressor wire production technique, comprises pickling, phosphatization, saponification, cold rolling, cold-drawn and zincincation, it is characterized in that:
By the steel wire produced according to claim 1 by carrying out pickling in the dilute sulphuric acid of 15%-30%, pickling temperature is 60-65 DEG C, pickling time 20-25min;
(2) in phosphate solution, carry out bonderizing, acidity pH value is 5.5-6.5, phosphating time 8-20min, phosphatization temperature 75-90 DEG C;
(3) carry out saponification process, the concentration of saponification liquor is 75Kg/m3 water, and temperature is 55 ± 5 DEG C, and saponification time is 10-20min;
(4) the steel wire after process is produced the steel wire of required specification through cold rolling and cold-drawn operation, then through low-temperaturetempering process;
(5) sent in galvanizing equipment by steel wire and carry out zinc coating operations, zinc temperature is 480-520 DEG C, and galvanizing time is 40-50s, and electroplating current is 253-265A.
7. bridge compressor wire production technique according to claim 6, it is characterized in that: described step (4) in tempering process, first at the temperature of 230-250 DEG C, be incubated 4-6min, then temperature remained on 180-200 DEG C, maintain 15-20min, last air cooling is to room temperature.
8. bridge compressor wire production technique according to claim 7, is characterized in that: first clean Steel Wire Surface before described step zinc coating operations (5), removing surface oxidation iron and impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410622565.3A CN104451441A (en) | 2014-11-08 | 2014-11-08 | Prestressed wire for bridge and production process of prestressed wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410622565.3A CN104451441A (en) | 2014-11-08 | 2014-11-08 | Prestressed wire for bridge and production process of prestressed wire |
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| CN104451441A true CN104451441A (en) | 2015-03-25 |
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| CN201410622565.3A Pending CN104451441A (en) | 2014-11-08 | 2014-11-08 | Prestressed wire for bridge and production process of prestressed wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863037A (en) * | 2021-08-22 | 2021-12-31 | 张富苗 | Preparation process of stainless steel wire rope |
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| CN1123722A (en) * | 1995-08-14 | 1996-06-05 | 徐飞 | Process for high-strength prestressed steel wire |
| CN1966755A (en) * | 2005-11-18 | 2007-05-23 | 株式会社神户制钢所 | Steel wire material for spring with excellent acid rinsing property |
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| 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 |
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2014
- 2014-11-08 CN CN201410622565.3A patent/CN104451441A/en active Pending
Patent Citations (6)
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| CN1123722A (en) * | 1995-08-14 | 1996-06-05 | 徐飞 | Process for high-strength prestressed steel wire |
| CN1966755A (en) * | 2005-11-18 | 2007-05-23 | 株式会社神户制钢所 | Steel wire material for spring with excellent acid rinsing property |
| CN101389778A (en) * | 2006-02-28 | 2009-03-18 | 株式会社神户制钢所 | Wire with excellent suitability for drawing and process for producing the same |
| CN102031450A (en) * | 2006-12-28 | 2011-04-27 | 株式会社神户制钢所 | Silicon-killed steel wire material and spring |
| CN101403119A (en) * | 2008-09-23 | 2009-04-08 | 新疆八一钢铁股份有限公司炼钢厂 | Technique for producing high-strength steel stranded wire by 77MnA steel |
| 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 |
Non-Patent Citations (1)
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| 国外特殊钢生产技术编写组: "《国外特殊钢生产技术 压力加工部分》", 31 May 1982, article "钢丝低温回火", pages: 222 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863037A (en) * | 2021-08-22 | 2021-12-31 | 张富苗 | Preparation process of stainless steel wire rope |
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Application publication date: 20150325 |