CN1739872A - Medium thick plate continuously casting and head-less rolling process - Google Patents
Medium thick plate continuously casting and head-less rolling process Download PDFInfo
- Publication number
- CN1739872A CN1739872A CN 200510047186 CN200510047186A CN1739872A CN 1739872 A CN1739872 A CN 1739872A CN 200510047186 CN200510047186 CN 200510047186 CN 200510047186 A CN200510047186 A CN 200510047186A CN 1739872 A CN1739872 A CN 1739872A
- Authority
- CN
- China
- Prior art keywords
- cooling
- rolling
- head
- temperature
- cut deal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Metal Rolling (AREA)
Abstract
The continuously casting and head-less rolling process for moderately thick plate includes the following steps: continuously casting plate blank, depressing liquid core, high temperature rolling, end cutting with flying shear, steam water cooling, finish rolling, sectional shearing, laminated cooling, cold bed or ground winding, finishing and warehousing. The present invention has raised metal yield, lowered fuel and power consumption, low end cutting rate, less rolling gates, and high output and finished product rate.
Description
(1) technical field
The invention belongs to metallurgical steel rolling field, specifically is a kind of continuously casting and head-less rolling cut deal technology.
(2) background technology
In recent years along with the aggravation of world energy sources crisis; metallurgy industry is as having produced serious contradiction between expansion of energy consumption rich and influential family production capacity and the energy shortage; the production technology of energy saving, consumption reduction and high efficiency becomes the main direction of studying of smelter; Heavy Plate Production adopts two steps at present; earlier cast continuous casting billet, after checking finishing, send into mill at steelshop; cold charge or hot charging heating furnace heat, and back and forth are rolled into finished product by 1 to 2 machine frame rolling mill afterwards.Process flow is long, and investment is big, and it is slow to take effect, the energy consumption height, and construction area is big, has secondary oxidation, and the steel billet substance is little, and lumber recovery is low, and production efficiency is not high.Because production is discontinuous, temperature fluctuation is big, and properties of product control difficulty is big, instability.
(3) summary of the invention
The purpose of this invention is to provide a kind of continuously casting and head-less rolling cut deal technology, long to solve the process flow that existing Heavy Plate Production technology exists, energy consumption height, the low not high problem of production efficiency that reaches of lumber recovery.
The technical scheme that adopts is:
Continuously casting and head-less rolling cut deal technology is characterized in that its technological process is: sheet billet continuous casting → liquid core is depressed → high temperature rolling → flying shear crop → carbonated drink cooling → finish rolling → sectional flying shear → laminar flow cooling → cold bed or underground batching → finishing → warehouse-in.
Its concrete technology is: with qualified high-quality molten steel through excessive bag; tundish enters in the crystallizer and pours into a mould; adopt the crystallizer electromagnetic agitation; adopt gas shield control cooling at secondary cooling zone; adopt the liquid core to depress simultaneously or soft depressing makes continuous casting billet attenuate 10-30mm; then steel billet directly being entered the roughing unit is rolled; adopt the carbonated drink cooling simultaneously; the temperature of control billet surface; enter finish rolling then; roughed bloom is 950 ℃-1150 ℃ through the start rolling temperature of carbonated drink cooling device control finish rolling; the mm finishing mill unit finishing temperature is controlled at 850 ℃-950 ℃ by the carbonated drink cooling device; cut deal after the finish rolling becomes scale or multiple length through sectional flying shear, again by cooling facility for laminar flow, the temperature of cut deal is dropped to 580-620 ℃; enter then that cold bed is cooled to room temperature or downcoiler batches, after the finishing warehouse-in.
Above-mentioned ga(u)ge of plate is 4-60mm; Width is 1000-4000mm.
The present invention has the following advantages:
1, without roller hearth type heating furnace or main frequency furnace steel billet is carried out post bake,, thereby improved recovery rate of iron, reduced fuel and energy resource consumption because secondary cooling zone protection cooling has reduced the secondary oxidation loss.
2, by continuous rolling technology endless rolling cut deal, reduce crop rate and rolling pass, improved output and lumber recovery.
3, owing to can realize high temperature rolling, help controlled rolling, enlarge kind, be particularly suitable for high temperature alloy steel plate rolling of high-strength steel sheet and infusibility.
4, rolling power consumption is 1/3 (an equal production scale) of traditional rolling consumption.
5, owing to adopt endless rolling, make the operation of rolling more stable, the impact load of milling train has dropped to minimum, thereby has reduced roll consumption, has reduced the incidence of technology accident.
6, investment is 50% of an equal scale traditional handicraft.
7, water consumption is few, and floor space is little.
8, because cooling is controlled in the employing gas shield, thereby avoided the casting billet surface oxidation, and made the strand temperature precisely controlled.
9, since casting blank surface temperature 1200 the degree about, and core temperature can reach 1450 the degree, the resistance of deformation of strand is very low, can realize large deformation, reduction ratio can be at 40-60%.
10, owing to adopted endless rolling, flying shear can be cut long multiple length, thereby has improved lumber recovery.
(4) description of drawings
Fig. 1 is a process flow diagram of the present invention.
Fig. 2 is a process chart of the present invention.
(5) specific embodiment
Embodiment one
See also Fig. 1, continuously casting and head-less rolling cut deal technology of the present invention, its technological process is: sheet billet continuous casting → liquid core is depressed → high temperature rolling → flying shear crop → carbonated drink cooling → finish rolling → sectional flying shear → laminar flow cooling → cold bed or underground batching → finishing → warehouse-in.
Its concrete technology is: will pour into a mould in tundish 1 enters crystallizer 2 through the molten steel of excessive bag; enter A district cooling section 3 then; adopt nitrogen protection control cooling; the billet surface temperature drops to 1200 ℃; adopt the liquid core to depress technology simultaneously; make continuous casting billet attenuate 15mm; the steel billet roughing unit 4 that directly enters the B district is rolled then; adopt carbonated drink cooling 6 in the B district; the surface temperature of control steel billet, roughing is after crop flying shear 5 excises the crop that dummy ingot brings; enter mm finishing mill unit 7 then; the start rolling temperature of finish rolling is controlled at 1000 ℃ by the carbonated drink cooling device, and finishing temperature is controlled at 870 ℃, after the finish rolling again through sectional flying shear 8 finished product cut deal cuttolength; by cooling facility for laminar flow 9 temperature of cut deal is dropped to 580 ℃ again; by crimping machine 10 rolling, provide and produce the rolling sheet material of thickness below 25mm, then the sheet material of thickness more than 25mm; can directly enter cold bed, after the finishing warehouse-in.
Embodiment two
Embodiment two and embodiment one are basic identical, and its difference is that roughed bloom is 1050 ℃ through the finish rolling start rolling temperature of carbonated drink cooling device control, and finishing temperature is 900 ℃; By cooling facility for laminar flow the temperature of cut deal is dropped to 600 ℃ after the finish rolling.
Embodiment three
Embodiment three and embodiment one are basic identical, and its difference is that roughed bloom is 1100 ℃ through the finish rolling start rolling temperature of carbonated drink cooling device control, and finishing temperature is 930 ℃; By cooling facility for laminar flow the temperature of cut deal is dropped to 620 ℃ after the finish rolling.
Claims (8)
1, continuously casting and head-less rolling cut deal technology is characterized in that its technological process is: sheet billet continuous casting → liquid core is depressed → high temperature rolling → flying shear crop → carbonated drink cooling → finish rolling → sectional flying shear → laminar flow cooling → cold bed or underground batching → finishing → warehouse-in; Its concrete technology is: with qualified high-quality molten steel through excessive bag; tundish (1) enters in the crystallizer (2) and pours into a mould; adopt crystallizer (2) electromagnetic agitation; adopt gas shield control cooling at secondary cooling zone; adopt the liquid core to depress simultaneously or soft depressing makes continuous casting billet attenuate 10-30mm; then steel billet directly being entered roughing unit (4) is rolled; adopt the temperature of carbonated drink cooling (6) billet surface simultaneously; enter finish rolling then; roughed bloom is 950 ℃-1150 ℃ through the start rolling temperature of carbonated drink cooling device control finish rolling; mm finishing mill unit (7) finishing temperature is controlled at 850 ℃-950 ℃ by the carbonated drink cooling device; cut deal after the finish rolling becomes scale or multiple length through sectional flying shear (8); again by cooling facility for laminar flow (9); the temperature of cut deal is dropped to 580-620 ℃; enter then that freezer is cooled to room temperature or downcoiler (10) batches, after the finishing warehouse-in.
2, continuously casting and head-less rolling cut deal technology according to claim 1 is characterized in that ga(u)ge of plate is 4-60mm; Width is 1000-4000mm.
3, continuously casting and head-less rolling cut deal technology according to claim 1; it is characterized in that adopting gas shield control process for cooling; protection control cooling atmosphere adopts nitrogen, and continuous casting billet skin temperature is controlled at about 1200 degree accurately, prevents the continuous casting billet surface oxidation simultaneously.
4, continuously casting and head-less rolling cut deal technology according to claim 1 is characterized in that the roughing unit adopts carbonated drink control process for cooling, can control the temperature drop of roughed bloom by regulating the ratio of compressed air and water.
5, according to the described continuously casting and head-less rolling cut deal of claim 1 technology, it is characterized in that adopting between roughing unit and mm finishing mill unit the carbonated drink process for cooling, by regulating the ratio of compressed air and water, control the start rolling temperature of finish rolling.
6, according to the described continuously casting and head-less rolling cut deal of claim 1 technology, it is characterized in that mm finishing mill unit adopts the carbonated drink process for cooling, by regulating the ratio of compressed air and water, control the finishing temperature of finish rolling.
7, according to the described continuously casting and head-less rolling cut deal of claim 1 technology, it is characterized in that the roughing unit takes compact Layout, make that distance is reduced to the shortest between frame.
8,, it is characterized in that the casting speed of continuous casting can be lower than 2m/min according to the described continuously casting and head-less rolling cut deal of claim 1 technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510047186 CN1739872A (en) | 2005-09-13 | 2005-09-13 | Medium thick plate continuously casting and head-less rolling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510047186 CN1739872A (en) | 2005-09-13 | 2005-09-13 | Medium thick plate continuously casting and head-less rolling process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1739872A true CN1739872A (en) | 2006-03-01 |
Family
ID=36092484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510047186 Pending CN1739872A (en) | 2005-09-13 | 2005-09-13 | Medium thick plate continuously casting and head-less rolling process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1739872A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306499B (en) * | 2008-06-23 | 2010-06-09 | 秦皇岛首秦金属材料有限公司 | Production method of steel plate for blast furnace jacket |
| CN101905247A (en) * | 2010-07-23 | 2010-12-08 | 北京科技大学 | Control method for head-tail temperature difference of semi-endless rolling super-long casting blank |
| CN101491812B (en) * | 2009-03-06 | 2011-09-07 | 武汉钢铁(集团)公司 | Hot continuous rolling medium-and-heavy plate production method and device without coiling micro-stress |
| CN102310078A (en) * | 2010-05-28 | 2012-01-11 | 罗光政 | Continuous-casting continuous-rolling method for producing sectional materials and bar-wire materials by using residual heat of molten steel |
| CN103111822A (en) * | 2011-11-16 | 2013-05-22 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Moderate thickness plate production process |
| CN103180062A (en) * | 2010-06-14 | 2013-06-26 | 达涅利机械设备股份公司 | Rolling line and relative method |
| CN103180061A (en) * | 2010-06-14 | 2013-06-26 | 达涅利机械设备股份公司 | Rolling method for flat products and relative rolling line |
| CN103966410A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Method for producing Q420-grade thick plate by high-temperature rolling |
| CN104415968A (en) * | 2013-08-28 | 2015-03-18 | 无锡桥联重工设计研究院有限公司 | Hot-rolling high-speed tool steel bar and wire producing process |
| CN107107135A (en) * | 2014-12-24 | 2017-08-29 | Posco公司 | Continuous rolling device without a head and its control method |
| CN107107134A (en) * | 2014-12-24 | 2017-08-29 | Posco公司 | Continuously/intermittently rolling conversion continuous casting rolling equipment without a head and continuously/intermittently rolling conversion continuous casting milling method without a head |
| CN107597845A (en) * | 2017-10-16 | 2018-01-19 | 北京科技大学 | Ultra-low carbon coil of strip ferrite rolling method and apparatus are used in the punching of endless casting rolling ultra-deep |
| CN107735187A (en) * | 2015-06-04 | 2018-02-23 | 株式会社Posco | Continuously casting and rolling equipment and continuously casting and milling method |
| CN109834112A (en) * | 2019-02-26 | 2019-06-04 | 江苏飞达环保科技有限公司 | A kind of cut deal casting and rolling the production line |
| CN111804729A (en) * | 2020-07-06 | 2020-10-23 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for producing medium and extra-thick plates through steel plate blanks under high-performance prepressing |
-
2005
- 2005-09-13 CN CN 200510047186 patent/CN1739872A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306499B (en) * | 2008-06-23 | 2010-06-09 | 秦皇岛首秦金属材料有限公司 | Production method of steel plate for blast furnace jacket |
| CN101491812B (en) * | 2009-03-06 | 2011-09-07 | 武汉钢铁(集团)公司 | Hot continuous rolling medium-and-heavy plate production method and device without coiling micro-stress |
| CN102310078B (en) * | 2010-05-28 | 2013-08-28 | 罗光政 | Continuous-casting continuous-rolling method for producing sectional materials and bar-wire materials by using residual heat of molten steel |
| CN102310078A (en) * | 2010-05-28 | 2012-01-11 | 罗光政 | Continuous-casting continuous-rolling method for producing sectional materials and bar-wire materials by using residual heat of molten steel |
| US9126246B2 (en) | 2010-06-14 | 2015-09-08 | Danieli & C. Officine Meccaniche Spa | Rolling method for flat products and relative rolling line |
| CN103180062B (en) * | 2010-06-14 | 2015-12-09 | 达涅利机械设备股份公司 | Rolling line and correlation technique |
| CN103180062A (en) * | 2010-06-14 | 2013-06-26 | 达涅利机械设备股份公司 | Rolling line and relative method |
| CN103180061A (en) * | 2010-06-14 | 2013-06-26 | 达涅利机械设备股份公司 | Rolling method for flat products and relative rolling line |
| CN103180061B (en) * | 2010-06-14 | 2016-04-06 | 达涅利机械设备股份公司 | The milling method of flat product and relevant rolling line |
| CN101905247B (en) * | 2010-07-23 | 2012-02-15 | 北京科技大学 | Control method for head-tail temperature difference of semi-endless rolling super-long casting blank |
| CN101905247A (en) * | 2010-07-23 | 2010-12-08 | 北京科技大学 | Control method for head-tail temperature difference of semi-endless rolling super-long casting blank |
| CN103111822A (en) * | 2011-11-16 | 2013-05-22 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Moderate thickness plate production process |
| CN103111822B (en) * | 2011-11-16 | 2015-05-20 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Moderate thickness plate production process |
| CN104415968B (en) * | 2013-08-28 | 2017-04-19 | 无锡桥联重工设计研究院有限公司 | Hot-rolling high-speed tool steel bar and wire producing process |
| CN104415968A (en) * | 2013-08-28 | 2015-03-18 | 无锡桥联重工设计研究院有限公司 | Hot-rolling high-speed tool steel bar and wire producing process |
| CN103966410A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Method for producing Q420-grade thick plate by high-temperature rolling |
| CN107107135A (en) * | 2014-12-24 | 2017-08-29 | Posco公司 | Continuous rolling device without a head and its control method |
| CN107107134A (en) * | 2014-12-24 | 2017-08-29 | Posco公司 | Continuously/intermittently rolling conversion continuous casting rolling equipment without a head and continuously/intermittently rolling conversion continuous casting milling method without a head |
| JP2018500177A (en) * | 2014-12-24 | 2018-01-11 | ポスコＰｏｓｃｏ | Endless rolling apparatus and control method thereof |
| CN107107134B (en) * | 2014-12-24 | 2019-06-11 | Posco公司 | Continuously/intermittently rolling conversion continuous casting-rolling equipment without a head and continuously/intermittently rolling conversion continuous casting-milling method without a head |
| CN107735187A (en) * | 2015-06-04 | 2018-02-23 | 株式会社Posco | Continuously casting and rolling equipment and continuously casting and milling method |
| CN107597845A (en) * | 2017-10-16 | 2018-01-19 | 北京科技大学 | Ultra-low carbon coil of strip ferrite rolling method and apparatus are used in the punching of endless casting rolling ultra-deep |
| CN107597845B (en) * | 2017-10-16 | 2023-08-11 | 北京科技大学 | Method and device for rolling ferrite of ultralow-carbon steel coil for endless continuous casting and rolling ultra-deep drawing |
| CN109834112A (en) * | 2019-02-26 | 2019-06-04 | 江苏飞达环保科技有限公司 | A kind of cut deal casting and rolling the production line |
| CN111804729A (en) * | 2020-07-06 | 2020-10-23 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for producing medium and extra-thick plates through steel plate blanks under high-performance prepressing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1739872A (en) | Medium thick plate continuously casting and head-less rolling process | |
| CN100540165C (en) | A kind of method of sheet billet continuously casting and rolling to produce thin strip steel coil | |
| CN101391264B (en) | Technique method of thin middle plate continuous casting and rolling production | |
| CN101927432B (en) | Manufacturing method of high-manganese strip steel with high strength and plasticity | |
| CN102615491B (en) | Processing method for copper material | |
| CN106269868A (en) | Long product rolling production line and production technology thereof | |
| CN1189256C (en) | Method for continuous casting, continuoccs rolling intermediate and thin sheet blanket | |
| CN103111464B (en) | Manufacturing method of super-thick steel plate | |
| CN101168167A (en) | Deformation magnesium alloy belt type rolling method | |
| CN102039309A (en) | Twin-roller double-strip composite-structured thin strip continuous casting and rolling method | |
| CN206652838U (en) | A kind of wire rolling process units of low energy consumption | |
| CN101653779B (en) | Effective hot rolled steel strip production process EHSP and method thereof | |
| CN102179407A (en) | Method for preparing hot rolling strip steel capable of preventing edge crack of extremely thin rolled strip steel | |
| CN102069167A (en) | Method for preparing oriented silicon steel isometric crystal thin strip blank by twin-roll thin strip continuous casting | |
| CN101811136A (en) | Magnesium alloy wide plate casting-rolling equipment | |
| CN111961967B (en) | Steel plate for small-compression-ratio thick-specification controlled rolling type Q345GJE building structure and production method thereof | |
| CN1978080A (en) | Band-steel producing process EPS | |
| CN101811179A (en) | Magnesium alloy wide plate casting-rolling method | |
| CN103276286B (en) | Production method of X80 pipeline steel strip with thickness of 6-10 mm | |
| CN102049479A (en) | Method for preparing non-oriented silicon steel equiaxial thin strip by adopting twin-roll strip continuous casting | |
| CN1923389A (en) | Hot-rolled orientation silicon steel process | |
| CN111842483B (en) | Multi-mode energy-saving hot-rolled strip steel production line and using method thereof | |
| CN1202921C (en) | Method and device for continuously casting and rolling sheet bars | |
| CN106834885B (en) | The method for producing Thin Specs Q345 Series Steels based on ESP bar strip continuous casting and rolling flow paths | |
| CN102310078B (en) | Continuous-casting continuous-rolling method for producing sectional materials and bar-wire materials by using residual heat of molten steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |