CN1760394A - Dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy - Google Patents
Dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy Download PDFInfo
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- CN1760394A CN1760394A CN 200410079502 CN200410079502A CN1760394A CN 1760394 A CN1760394 A CN 1760394A CN 200410079502 CN200410079502 CN 200410079502 CN 200410079502 A CN200410079502 A CN 200410079502A CN 1760394 A CN1760394 A CN 1760394A
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Abstract
A mother material dedicated for cold-rolling low-alloy ribbed reinforcing bar contains C (0.15-0.22 Wt %), Si (0.30-0.60), Mn (1.20-1.50), S (0-0.035), P (0-0.035) and Fe (rest). The rolled reinforcing bar features high size precision, surface quality, strength and stability.
Description
Technical field
The present invention relates to a kind of dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy, belong to the design and the manufacturing technology field of metallic substance.
Background technology
Cold rolled reinforcing steel bar with ribs is a kind of new and effective structural steel that begins to introduce China the 1980s, has the intensity height, and is strong with concrete bond stress, can save characteristics such as steel and cement.As in cast in place concrete plate, use cold rolled reinforcing steel bar with ribs can save steel more than 30%; In prestressed concrete member, behind the use cold rolled reinforcing steel bar with ribs, can save cement 50kg/m3～80kg/m3, and can significantly improve concrete quality, therefore use comparatively extensive.But the employed raw material of existing cold rolled reinforcing steel bar with ribs is low-carbon (LC) gren rod for building mostly, in use there is following problem: 1) gren rod poor quality, wire surface ferric oxide skin depth, tolerance of dimension is bigger, directly influences the rolling qualification rate of cold rolled reinforcing steel bar with ribs.2) the big and S of the chemical component fluctuation of wire rod, P content height, easily segregation and contain inclusion, make wire rod in drawing process, usually cause fracture because of component segregation or inclusion content are high, both influence the production output of cold rolled reinforcing steel bar with ribs, influenced the quality product of cold rolled reinforcing steel bar with ribs again.3) poker characteristic of wire rod is inhomogeneous, makes cold rolled reinforcing steel bar with ribs under normal working condition, one section qualified one section underproof phenomenon can occur.4) low-carbon (LC) gren rod for building can not satisfy the needs of producing other cold rolled reinforcing steel bar with ribs of different intensity scale.Because above-mentioned deficiency makes that the qualification rate of cold rolled reinforcing steel bar with ribs is lower, directly influences its output and quality, therefore, is necessary prior art is improved.
Summary of the invention
The object of the present invention is to provide a kind of stable performance, the product percent of pass height, poker characteristic is good, and production cost is low, intensity rank and complete in specifications, precision height, the measured dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy of matter.
The present invention realizes by following technical proposal: a kind of dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy, it is characterized in that it is the following steel of a kind of chemical ingredients: C 0.15-0.22wt%, Si 0.30-0.60wt%, Mn 1.20-1.50wt%, S≤0.035wt%, P≤0.035wt%, all the other are Fe and inevitable impurity.
Dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy provided by the invention forms by following technology is rolling: it is to be heated to the open rolling when reaching 950～1050 ℃ of strand temperature in 1000～1150 ℃ the process furnace that above-mentioned steel billet is sent into temperature, through roughing, in roll, after pre-each 6 passage of finish rolling, under 800～920 ℃ of temperature, carry out finish rolling, the lopping of under 880～940 ℃ of temperature, weaving silk after the finish rolling, with roller speed is on the roller-way of 0.20～0.50m/s, make the wire rod temperature be cooled to 680～800 ℃ earlier by 850～900 ℃, make the wire rod slow cooling again, when the wire rod temperature is chilled to 480～650 ℃, collect volume, thereby obtain described mother metal.
The present invention has following advantage and effect: have the following advantages with such scheme gained dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy: 1, physical dimension precision height, the surface quality of dedicated base material are good, can guarantee the stability of mother metal in the cold working process, to reduce the generation of industrial accident.2, the poker characteristic of dedicated base material is stable, is difficult for broken string in the operation of rolling, can significantly improve the qualification rate of cold rolled reinforcing steel bar with ribs performance, reduces production costs.3, the intensity rank of dedicated base material and complete in specifications can satisfy the cold rolled reinforcing steel bar with ribs that manufacturer produces varying strength rank and specification.4, the cold rolled reinforcing steel bar with ribs of producing with mother metal provided by the invention had both improved engineering construction state of the art and construction quality, had reduced raw-material consumption again, had reduced construction costs, createed considerable social benefit.
Embodiment
Below in conjunction with embodiment the present invention is described further.
Embodiment 1
Take off the steel billet of row chemical ingredients: C 0.22wt%, Si 0.60wt%, Mn 1.50wt%, S≤0.035wt%, P≤0.035wt%, all the other are Fe and inevitable impurity;
Be rolled into dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy through following technology: it is in 1000～1150 ℃ the process furnace that above-mentioned steel are sent into temperature, be heated to the open rolling when reaching 950～1050 ℃ of strand temperature, through roughing 6 passages, in roll 6 passages, after pre-finish rolling 6 passages, it is rolling to enter finishing train when temperature is 800～920 ℃, after rolled piece goes out finishing train, through the water-cooled line, pinch roll, by the Laying head lopping of weaving silk, be dispersed on the Stelmor roller-way, roller table speed is 0.20～0.50m/s, open blower fan, make the wire rod temperature be cooled to 680～800 ℃ by 850～900 ℃, all cover caps of closing except that the blower fan top make the wire rod slow cooling, and collecting volume when the wire rod temperature is chilled to 480～650 ℃ must the trade mark be the mother metal of TS550L.
Embodiment 2
Take off the steel billet of row chemical ingredients, make dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy by the rolling technology identical with embodiment 1: C 0.15wt%, Si 0.30wt%, Mn 1.20wt%, S≤0.035wt%, P≤0.035wt%, all the other are Fe and inevitable impurity.
Embodiment 3
Take off the steel billet of row chemical ingredients, make dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy by the rolling technology identical with embodiment 1: C 0.18wt%, Si 0.40wt%, Mn 1.30wt%, S≤0.035wt%, P≤0.035wt%, all the other are Fe and inevitable impurity.
Claims (2)
1, a kind of dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy, it is characterized in that it is the following steel of a kind of chemical ingredients: C 0.15-0.22wt%, Si 0.30-0.60wt%, Mn 1.20-1.50wt%, S≤0.035wt%, P≤0.035wt%, all the other are Fe and inevitable impurity.
2, mother metal according to claim 1, it is characterized in that described dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy forms by following technology is rolling: it is to be heated to the open rolling when reaching 950～1050 ℃ of strand temperature in 1000～1150 ℃ the process furnace that above-mentioned steel billet is sent into temperature, through roughing, in roll, after pre-each 6 passage of finish rolling, under 800～920 ℃ of temperature, carry out finish rolling, the lopping of under 880～940 ℃ of temperature, weaving silk after the finish rolling, with roller speed is on the roller-way of 0.20～0.50m/s, make the wire rod temperature be cooled to 680～800 ℃ earlier by 850～900 ℃, make the wire rod slow cooling again, when the wire rod temperature is chilled to 480～650 ℃, collect volume, thereby obtain described mother metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100795024A CN100406602C (en) | 2004-10-12 | 2004-10-12 | Dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100795024A CN100406602C (en) | 2004-10-12 | 2004-10-12 | Dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1760394A true CN1760394A (en) | 2006-04-19 |
| CN100406602C CN100406602C (en) | 2008-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100795024A Expired - Fee Related CN100406602C (en) | 2004-10-12 | 2004-10-12 | Dedicated base material for cold rolling reinforced steel-bar with ribs in low alloy |
Country Status (1)
| Country | Link |
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| CN (1) | CN100406602C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896159A (en) * | 2011-07-29 | 2013-01-30 | 宝钢集团新疆八一钢铁有限公司 | Rolling cooling technology for low-carbon steel wire rod oxidized iron sheet for reducing drawn wire |
| CN103240271A (en) * | 2013-04-18 | 2013-08-14 | 首钢总公司 | Production method for reducing dynamic drawing aging of low-carbon steel wire rods |
| CN106480260A (en) * | 2015-08-24 | 2017-03-08 | 鞍钢股份有限公司 | A kind of method that prestressed steel bar is directly produced using burning optimization on line |
| CN111621718A (en) * | 2020-06-28 | 2020-09-04 | 马鞍山钢铁股份有限公司 | Steel for high-ductility cold-rolled steel bar for welded mesh and production method thereof |
| CN116689479A (en) * | 2023-08-08 | 2023-09-05 | 中冶检测认证有限公司 | Technological method for producing vanadium-free low-silicon hot rolled ribbed steel bars |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1008517B (en) * | 1986-09-29 | 1990-06-27 | 王会生 | Vessel liquid is discharged the device of usefulness |
| CN1205254A (en) * | 1997-07-14 | 1999-01-20 | 郭静峰 | Prodn. tech. of cold-rolled deformed steel bar |
| CN1260404A (en) * | 1999-08-05 | 2000-07-19 | 江苏苏钢集团有限公司 | Low-alloy coiled deformed steel reinforcement and its manufacture technology |
| CN1185056C (en) * | 2001-07-23 | 2005-01-19 | 南京钢铁联合有限公司 | Production process of mother material for cold rolled ribbed steel bar and cold rolled ribbed steel bar |
| CN1586750A (en) * | 2004-08-20 | 2005-03-02 | 钢铁研究总院 | Rolling method for low carbon twisted steel bar |
-
2004
- 2004-10-12 CN CNB2004100795024A patent/CN100406602C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896159A (en) * | 2011-07-29 | 2013-01-30 | 宝钢集团新疆八一钢铁有限公司 | Rolling cooling technology for low-carbon steel wire rod oxidized iron sheet for reducing drawn wire |
| CN102896159B (en) * | 2011-07-29 | 2015-09-23 | 宝钢集团新疆八一钢铁有限公司 | Reduce the rolling process for cooling of wire drawing low-carbon steel rod bundle iron scale |
| CN103240271A (en) * | 2013-04-18 | 2013-08-14 | 首钢总公司 | Production method for reducing dynamic drawing aging of low-carbon steel wire rods |
| CN103240271B (en) * | 2013-04-18 | 2014-12-24 | 首钢总公司 | Production method for reducing dynamic drawing aging of low-carbon steel wire rods |
| CN106480260A (en) * | 2015-08-24 | 2017-03-08 | 鞍钢股份有限公司 | A kind of method that prestressed steel bar is directly produced using burning optimization on line |
| CN111621718A (en) * | 2020-06-28 | 2020-09-04 | 马鞍山钢铁股份有限公司 | Steel for high-ductility cold-rolled steel bar for welded mesh and production method thereof |
| CN111621718B (en) * | 2020-06-28 | 2021-12-14 | 马鞍山钢铁股份有限公司 | Steel for high-ductility cold-rolled steel bar for welded mesh and production method thereof |
| CN116689479A (en) * | 2023-08-08 | 2023-09-05 | 中冶检测认证有限公司 | Technological method for producing vanadium-free low-silicon hot rolled ribbed steel bars |
| CN116689479B (en) * | 2023-08-08 | 2023-12-26 | 中冶检测认证有限公司 | Technological method for producing vanadium-free low-silicon hot rolled ribbed steel bars |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100406602C (en) | 2008-07-30 |
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