CN105033238A - Production process for continuous casting and rolling of sheet steel - Google Patents
Production process for continuous casting and rolling of sheet steel Download PDFInfo
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- CN105033238A CN105033238A CN201510457268.2A CN201510457268A CN105033238A CN 105033238 A CN105033238 A CN 105033238A CN 201510457268 A CN201510457268 A CN 201510457268A CN 105033238 A CN105033238 A CN 105033238A
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- continuous casting
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- 238000005096 rolling process Methods 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 238000009749 continuous casting Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 238000005266 casting Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 13
- 238000002791 soaking Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 4
- 102000010970 Connexin Human genes 0.000 claims description 3
- 108050001175 Connexin Proteins 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 210000003976 gap junction Anatomy 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 229910000885 Dual-phase steel Inorganic materials 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910000794 TRIP steel Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Landscapes
- Metal Rolling (AREA)
- Continuous Casting (AREA)
Abstract
The invention relates to a production process for continuous casting and rolling of sheet steel. A continuous casting machine and a two-roller continuous rolling machine are connected in series with a short distance. The production process for continuous casting and rolling of sheet steel comprises the steps that (1) molten steel is supplied: a steel ladle is filled with smelted liquid steel, and a crane is used for hoisting the steel ladle to the position above the continuous casting machine; (2) continuous casting is carried out: the liquid steel in the steel ladle is injected into the continuous casting machine for continuous casting production; and (3) continuous rolling is carried out. The procedure of the production process for continuous casting and rolling of sheet steel is simplified, the production cycle is short, and production efficiency is high; by adding a heat preservation system to conveying equipment and increasing the pulling speed of a tractor, the purpose of increasing the surface temperature of a casting blank is achieved through temperature reversion of the unconsolidated liquid phase, and therefore smooth low-temperature rolling can be guaranteed, waste heat is fully utilized, energy consumption is reduced, and production cost is lowered.
Description
Technical field
The present invention relates to technical field of steel production, specifically a kind of sheet metal continuous casting and rolling process for production.
Background technology
Continuous casting and rolling technique of sheet bar comes out over more than 10 year and develops rapidly, and CSP, ISP and FTSR are that the development of the various technologies of representative differs from one another; Due to thin slab casting there is economize energy, remarkable advantage, the extensive use in steel are produced such as flow process is short, equipment is few, small investment, equipment are economized, lumber recovery is high, production cost is low, good product quality, variety development potentiality are large and economic benefit is fairly obvious; In the last few years, along with going deep into of studying thin plate blank continuously casting and continuously rolling technology, the development of its technique, equipment and automatic control technology, thin plate blank continuously casting and continuously rolling technology is developed into by initial mating with electric furnace and produces with blast furnace-converter flow path match, is no longer subject to the restriction of steel scrap and electric power.The steel quality provided because of converter improves, casting machine output and slab quality are improved, develop into so the product variety produced further expands can produce dual phase steel and TRIP steel from simple several prods can only be produced, can also non-orientation silicon steel be produced in recent years.Total development trend improves the production capacity that casting machine production capacity gives full play to rear portion tandem mill; Improve variety and quality, improve the market coverage of product; Adopt endless rolling technique, produce ultra-thin specification product; To replace the market of part cold-rolled products; Range of application expands, and is more and more applied in the large integrated enterprise with blast-melted being raw material.
The steel plant of newly-built production building materials have employed continuous casting and rolling design, the distance of its casting machine and milling train is all within twenty or thirty rice, meet and reduce costs and the national requirement reducing energy consumption, but much old production line, because of fund and other problem, still adopt strand heating rolling technique to produce, greatly add production cost, also reduce energy consumption policy with country and do not conform to.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of sheet metal continuous casting and rolling process for production.Technical problem to be solved by this invention realizes by the following technical solutions: a kind of sheet metal continuous casting and rolling process for production, and conticaster and two roller tandem mill are closely together in series, and described sheet metal continuous casting and rolling process for production step is:
1) molten steel supply: the liquid steel smelted is loaded
steel ladlein, by
cranehandling extremely
conticastertop;
2) cast continuously: the liquid molten steel in steel ladle is injected conticaster and carries out
continuous castingproduce, and in casting process, adopt soaking water gap to protect, in soaking water gap junction, input inert gas is protected, and after continuous casting, casting blank surface temperature controls at 1000-1050 DEG C,
strandpull out below conticaster;
3) continuous rolling: adopt transmission equipment to transmit when strand temperature arrives 950-1000 DEG C, and in transmission equipment
Hauling machine adopts high-speed tractor, improve pulling rate, utilize not solidified liquid phase to rise again and reach the object improving casting blank surface temperature, transporting rail in transmission equipment is provided with heat-insulation system, strand is transported to milling train group through transmission equipment and carries out continuous rolling, and strand temperature controls more than 860 DEG C during continuous rolling, smooth zerolling can be ensured.
Further, the inert gas of the soaking water gap protection junction input in continuous casting process can adopt argon gas.
The present invention has the following advantages:
(1) this invention simplifies sheet metal continuous casting and rolling process for production flow process, with short production cycle, production efficiency is high;
(2) the present invention by adding heat-insulation system on transmission equipment, and improve hauling machine simultaneously draw element, utilize not solidified liquid phase to rise again and reach the object improving casting blank surface temperature, smooth zerolling can be ensured, take full advantage of waste heat, decrease energy resource consumption, reduce production cost.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below the present invention being set forth further.
A kind of sheet metal continuous casting and rolling process for production, conticaster and two roller tandem mill are closely together in series, and described sheet metal continuous casting and rolling process for production step is:
1) molten steel supply: the liquid steel being heated into molten condition is loaded
steel ladlein, by
cranehandling extremely
conticastertop.
2) cast continuously: the liquid molten steel in steel ladle is injected conticaster and carries out
continuous castingproduce, and in casting process, adopt soaking water gap to protect, in soaking water gap junction, input inert gas is protected, and after continuous casting, casting blank surface temperature controls at 1000-1050 DEG C,
strandpull out below conticaster;
3) continuous rolling: adopt transmission equipment to transmit when strand temperature arrives 950-1000 DEG C, and in transmission equipment
Hauling machine adopts high-speed tractor, improve pulling rate, utilize not solidified liquid phase to rise again and reach the object improving casting blank surface temperature, transporting rail in transmission equipment is provided with heat-insulation system, strand is transported to milling train group through transmission equipment and carries out continuous rolling, and strand temperature controls more than 860 DEG C during continuous rolling, smooth zerolling can be ensured.
Further, the inert gas of the soaking water gap protection junction input in continuous casting process can adopt argon gas.
Adopt above-mentioned process to produce sheet metal, simplify sheet metal continuous casting and rolling process for production flow process, with short production cycle, production efficiency is high; By adding heat-insulation system on transmission equipment, and improve hauling machine simultaneously draw element, utilize not solidified liquid phase to rise again to reach the object improving casting blank surface temperature, smooth zerolling can be ensured, take full advantage of waste heat, decrease energy resource consumption, reduce production cost.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not by the restriction of step embodiment; the just principle of the present invention described in step embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. a sheet metal continuous casting and rolling process for production, is characterized in that: conticaster and two roller tandem mill are closely together in series, and described sheet metal continuous casting and rolling process for production step is:
1) molten steel supply: the liquid molten steel smelted is loaded
steel ladlein, by
cranehandling extremely
conticastertop;
2) cast continuously: the liquid molten steel in steel ladle is injected conticaster and carries out
continuous castingproduce, and in casting process, adopt soaking water gap to protect, in soaking water gap junction, input inert gas is protected, and after continuous casting, casting blank surface temperature controls at 1000-1050 DEG C,
strandpull out below conticaster;
3) continuous rolling: adopt transmission equipment to transmit when strand temperature arrives 950-1000 DEG C, and in transmission equipment
Hauling machine adopts high-speed tractor, and the transporting rail in transmission equipment is provided with heat-insulation system, and strand is transported to milling train group through transmission equipment and carries out continuous rolling, and during continuous rolling, strand temperature controls more than 860 DEG C.
2. a kind of sheet metal continuous casting and rolling process for production according to claim 1, is characterized in that: the inert gas of the soaking water gap protection junction input in continuous casting process can adopt argon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457268.2A CN105033238A (en) | 2015-07-30 | 2015-07-30 | Production process for continuous casting and rolling of sheet steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457268.2A CN105033238A (en) | 2015-07-30 | 2015-07-30 | Production process for continuous casting and rolling of sheet steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105033238A true CN105033238A (en) | 2015-11-11 |
Family
ID=54440533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510457268.2A Pending CN105033238A (en) | 2015-07-30 | 2015-07-30 | Production process for continuous casting and rolling of sheet steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105033238A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106552831A (en) * | 2016-06-28 | 2017-04-05 | 东北大学 | A kind of manufacture method of Thin Specs hot-strip |
| CN108061373A (en) * | 2017-12-17 | 2018-05-22 | 博维恩冷冻科技（苏州）有限公司 | A kind of processing technology of heat sink of air conditioner |
| CN114164312A (en) * | 2021-11-05 | 2022-03-11 | 日照钢铁控股集团有限公司 | Molten steel tapping transfer method for converter in steelmaking production |
| CN115488303A (en) * | 2022-09-26 | 2022-12-20 | 攀钢集团攀枝花钢铁研究院有限公司 | High-alloy-content heavy rail steel structure performance cooperative control method |
-
2015
- 2015-07-30 CN CN201510457268.2A patent/CN105033238A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106552831A (en) * | 2016-06-28 | 2017-04-05 | 东北大学 | A kind of manufacture method of Thin Specs hot-strip |
| CN106552831B (en) * | 2016-06-28 | 2019-07-12 | 东北大学 | A kind of manufacturing method of thin gauge hot-strip |
| CN108061373A (en) * | 2017-12-17 | 2018-05-22 | 博维恩冷冻科技（苏州）有限公司 | A kind of processing technology of heat sink of air conditioner |
| CN114164312A (en) * | 2021-11-05 | 2022-03-11 | 日照钢铁控股集团有限公司 | Molten steel tapping transfer method for converter in steelmaking production |
| CN114164312B (en) * | 2021-11-05 | 2022-11-18 | 日照钢铁控股集团有限公司 | Molten steel tapping transfer method for steel-making production converter |
| CN115488303A (en) * | 2022-09-26 | 2022-12-20 | 攀钢集团攀枝花钢铁研究院有限公司 | High-alloy-content heavy rail steel structure performance cooperative control method |
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Application publication date: 20151111 |