CN107363093A - The thin specification steel plate milling method of blanket shape among before a kind of improvement rolling - Google Patents
The thin specification steel plate milling method of blanket shape among before a kind of improvement rolling Download PDFInfo
- Publication number
- CN107363093A CN107363093A CN201610311687.XA CN201610311687A CN107363093A CN 107363093 A CN107363093 A CN 107363093A CN 201610311687 A CN201610311687 A CN 201610311687A CN 107363093 A CN107363093 A CN 107363093A
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- rolling
- roughing mill
- steel
- steel plate
- middle base
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- 238000005096 rolling process Methods 0.000 title claims abstract description 32
- 238000003801 milling Methods 0.000 title claims abstract description 7
- 230000006872 improvement Effects 0.000 title abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/026—Rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B2001/028—Slabs
Abstract
The present invention relates to a kind of thin specification steel plate milling method of middle blanket shape before improvement rolling, suitable for the process using cogging finishing rolling step and finished product thickness≤6mm steel plates；Comprise the following steps：1) the middle base after secondary cogging first turns steel after coming out of the stove through roughing mill；2) after roughing mill gap values between rollers are adjusted to workpiece thickness+4~6mm, by roughing mill to middle one passage of base skin pass rolling；3) through roughing mill turn steel and it is smooth after middle base go to finishing mill, directly rolled.The present invention can solve the problem that middle base blank come out of the stove after plate shape the problem of upwarping, improve rolling success rate, reduce due to steel plate oblique angle it is big caused by short chi phenomenon, reduce economic loss.
Description
Technical field
The present invention relates to a kind of thin specification steel plate of middle blanket shape before hot rolled strip technical field, more particularly to improvement rolling to roll
Method processed.
Background technology
At present for below 6mm thin specification steel plates, generally rolled using single chassis finishing mill, middle base is thickness after secondary cogging
Spend for the blank of 110mm or so specifications.Twin furnace production period, because blank time inside furnace is grown, both ends are upward after blank is come out of the stove
Warping phenomenon is serious, directly affects finishing mill and turns steel operation；It is relatively low to cause to turn temperature when long steel time, steel plate rolling, and increases
Add and got rid of the curved risk for scraping frame.Broadening, which upwarps, simultaneously easily forms steel plate oblique angle, produces the probability increase of short chi defect.
The content of the invention
The invention provides a kind of thin specification steel plate milling method of middle blanket shape before improvement rolling, middle base base can solve the problem that
The problem of plate shape upwarps after material is come out of the stove, rolling success rate is improved, reduce due to the big caused short chi phenomenon in steel plate oblique angle, reduce
Economic loss.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of thin specification steel plate milling method for improving blanket shape among before rolling, suitable for using cogging-finishing rolling step and
The process of finished product thickness≤6mm steel plates；Comprise the following steps：
1) the middle base after secondary cogging first turns steel after coming out of the stove through roughing mill；
2) after roughing mill gap values between rollers are adjusted to workpiece thickness+4~6mm, by roughing mill to middle base skin pass rolling one
Passage；
3) through roughing mill turn steel and it is smooth after middle base go to finishing mill, directly rolled.
Compared with prior art, the beneficial effects of the invention are as follows：
Can solve the problem that middle base blank come out of the stove after plate shape the problem of upwarping, improve rolling success rate, reduce because steel plate oblique angle is big
Caused short chi phenomenon, reduce economic loss.
Brief description of the drawings
Fig. 1 is the Principle of Process schematic diagram of the method for the invention.
In figure：1. the finishing mill roll of 3. roughing mill roll of middle 2. upturned portion of base 4.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
See Fig. 1, be the Principle of Process schematic diagram of the method for the invention.Blanket shape among before a kind of improvement rolling of the present invention
Thin specification steel plate milling method, suitable for the process using cogging-finishing rolling step and finished product thickness≤6mm steel plates；
Comprise the following steps：
1) the middle base 1 after secondary cogging first turns steel after coming out of the stove through roughing mill；
2) it is smooth to middle base 1 by roughing mill after the gap values between rollers of roughing mill roll 3 are adjusted to workpiece thickness+4~6mm
Roll a passage；
3) through roughing mill turn steel and it is smooth after middle base 1 go to finishing mill, directly rolled.
The present invention turns steel advantage using roughing mill, middle base is carried out in roughing mill to turn steel operation, and carry out smooth work simultaneously
Industry, do not have to carry out turning steel operation again during blank finish rolling after roughing mill, rolling can be done directly.Effectively shorten when turning steel
Between, avoid blank and upwarp caused steel plate rolling oblique angle, be advantageous to rolling and the plate form control of below 6mm thin specification steel plates,
A brand-new operating method has been started in production for thin specification steel plate.
Following examples are implemented under premised on technical solution of the present invention, give detailed embodiment and specific
Operating process, but protection scope of the present invention is not limited to following embodiments.Method therefor such as nothing is especially said in following embodiments
Bright is conventional method.
【Embodiment 1】
Finished steel plate thickness is 6mm, and the middle base sotck thinkness after secondary cogging is 110mm, and its both ends upwarps maximum height
For 50~120mm, if directly upper finishing mill rolls, can cause to turn steel difficulty, and have an impact rolling quality.Therefore adopt
Middle blanket shape is repaired with the method for the invention.
As shown in figure 1, middle base 1 first turns steel through roughing mill；After the gap values between rollers of roughing mill roll 3 are adjusted to 115mm, pass through
Roughing mill enters one passage of skin pass rolling to middle base 1；Through roughing mill turn steel and it is smooth after middle base 1 go to finishing mill,
Directly rolled by finishing mill roll, obtain 6mm finished steels.
In the present embodiment, the hour block number of Plate Production, improved by 13 pieces/h before to 19 pieces/h, that is, improve life
Produce efficiency.
Before because the short chi stock rate of thin specification steel plate caused by the big reason in oblique angle is reduced to 0.01% by 0.14%, that is, improve
Product quality.
【Embodiment 2】
Table 1 is not flattened with the flattened influence degree comparative example one to follow-up finishing rolling step for rolling same size sheet metal；
As can be seen from Table 1, the monolithic steel plate rolling time after smooth shortens 24s, and finishing temperature improves about 60 DEG C,
While improving production efficiency, be advantageous to the control of plate shape, the short chi of thin specification steel plate caused by effectively reducing the big reason in oblique angle shows
Goods rate.
【Embodiment 3】
Table 2 is not flattened with the flattened influence degree comparative example two to follow-up finishing rolling step for rolling same size sheet metal；
As can be seen from Table 2, the material rolling time after smooth shortens 35s compared with out-of-flatness material, and finishing temperature improves
About 64 DEG C, while equally improving production efficiency, be advantageous to the control of plate shape, it is effectively thin caused by the reduction big reason in oblique angle
The short chi stock rate of specification steel plate.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, appoint
What those familiar with the art the invention discloses technical scope in, technique according to the invention scheme and its hair
Bright design is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (1)
1. a kind of thin specification steel plate milling method for improving blanket shape among before rolling, suitable for using cogging-finishing rolling step,
And the process of finished product thickness≤6mm steel plates；It is characterised in that it includes following steps：
1) the middle base after secondary cogging first turns steel after coming out of the stove through roughing mill；
2) after roughing mill gap values between rollers are adjusted to workpiece thickness+4~6mm, by roughing mill to middle base skin pass rolling one
Passage；
3) through roughing mill turn steel and it is smooth after middle base go to finishing mill, directly rolled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610311687.XA CN107363093B (en) | 2016-05-12 | 2016-05-12 | A kind of thin specification steel plate milling method improving the preceding intermediate blanket shape of rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610311687.XA CN107363093B (en) | 2016-05-12 | 2016-05-12 | A kind of thin specification steel plate milling method improving the preceding intermediate blanket shape of rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107363093A true CN107363093A (en) | 2017-11-21 |
| CN107363093B CN107363093B (en) | 2019-01-08 |
Family
ID=60304654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610311687.XA Active CN107363093B (en) | 2016-05-12 | 2016-05-12 | A kind of thin specification steel plate milling method improving the preceding intermediate blanket shape of rolling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107363093B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273854A (en) * | 2017-12-25 | 2018-07-13 | 南京钢铁股份有限公司 | A kind of single chassis heavy and medium plate mill nose control method |
| CN114798730A (en) * | 2022-03-17 | 2022-07-29 | 柳州钢铁股份有限公司 | Rolling method of super-thick small-single-weight low-alloy steel plate |
| CN114798730B (en) * | 2022-03-17 | 2024-05-03 | 柳州钢铁股份有限公司 | Rolling method of ultra-thick small single-weight low-alloy steel plate |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5581003A (en) * | 1978-12-13 | 1980-06-18 | Kawasaki Steel Corp | Plate rolling method |
| JPS57168705A (en) * | 1981-04-07 | 1982-10-18 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling method for thick plate |
| JPH10180306A (en) * | 1996-12-19 | 1998-07-07 | Sumitomo Metal Ind Ltd | Hot rolling method for preventing peripheral flaw on steel sheet |
| CN1850376A (en) * | 2006-04-29 | 2006-10-25 | 东北大学 | Method for rolling trapezoidal width steel plate |
| CN102886381A (en) * | 2011-07-22 | 2013-01-23 | 宝山钢铁股份有限公司 | Thick plate rolling method |
| KR101322014B1 (en) * | 2011-09-30 | 2013-10-28 | 주식회사 포스코 | Reversible plate rolling mill system equipped with one width meter enabling turn-free and turn-free method using thererof |
| CN103480648A (en) * | 2013-09-18 | 2014-01-01 | 济钢集团有限公司 | Novel PVPC (plan view pattern control) rolling process for surface plates |
| CN103752622A (en) * | 2013-12-23 | 2014-04-30 | 宝山钢铁股份有限公司 | Heavy plate rolling control method for removing defect on edge of continuous casting bloom |
| CN104772338A (en) * | 2014-01-13 | 2015-07-15 | 宝山钢铁股份有限公司 | Method for controlling shape of thick plate rolling plane |
| CN104772332A (en) * | 2014-01-13 | 2015-07-15 | 宝山钢铁股份有限公司 | Method for improving double bulges at edge part of broadened intermediate slab in thick plate rolling process |
| CN104928598A (en) * | 2015-07-02 | 2015-09-23 | 首钢总公司 | Production method of high-performance wide-specification bridge steel plate |
| CN104923561A (en) * | 2014-03-20 | 2015-09-23 | 六晶金属科技（苏州）有限公司 | Rolling method for metal substrate for LED |
-
2016
- 2016-05-12 CN CN201610311687.XA patent/CN107363093B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5581003A (en) * | 1978-12-13 | 1980-06-18 | Kawasaki Steel Corp | Plate rolling method |
| JPS57168705A (en) * | 1981-04-07 | 1982-10-18 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling method for thick plate |
| JPH10180306A (en) * | 1996-12-19 | 1998-07-07 | Sumitomo Metal Ind Ltd | Hot rolling method for preventing peripheral flaw on steel sheet |
| CN1850376A (en) * | 2006-04-29 | 2006-10-25 | 东北大学 | Method for rolling trapezoidal width steel plate |
| CN102886381A (en) * | 2011-07-22 | 2013-01-23 | 宝山钢铁股份有限公司 | Thick plate rolling method |
| KR101322014B1 (en) * | 2011-09-30 | 2013-10-28 | 주식회사 포스코 | Reversible plate rolling mill system equipped with one width meter enabling turn-free and turn-free method using thererof |
| CN103480648A (en) * | 2013-09-18 | 2014-01-01 | 济钢集团有限公司 | Novel PVPC (plan view pattern control) rolling process for surface plates |
| CN103752622A (en) * | 2013-12-23 | 2014-04-30 | 宝山钢铁股份有限公司 | Heavy plate rolling control method for removing defect on edge of continuous casting bloom |
| CN104772338A (en) * | 2014-01-13 | 2015-07-15 | 宝山钢铁股份有限公司 | Method for controlling shape of thick plate rolling plane |
| CN104772332A (en) * | 2014-01-13 | 2015-07-15 | 宝山钢铁股份有限公司 | Method for improving double bulges at edge part of broadened intermediate slab in thick plate rolling process |
| CN104923561A (en) * | 2014-03-20 | 2015-09-23 | 六晶金属科技（苏州）有限公司 | Rolling method for metal substrate for LED |
| CN104928598A (en) * | 2015-07-02 | 2015-09-23 | 首钢总公司 | Production method of high-performance wide-specification bridge steel plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273854A (en) * | 2017-12-25 | 2018-07-13 | 南京钢铁股份有限公司 | A kind of single chassis heavy and medium plate mill nose control method |
| CN114798730A (en) * | 2022-03-17 | 2022-07-29 | 柳州钢铁股份有限公司 | Rolling method of super-thick small-single-weight low-alloy steel plate |
| CN114798730B (en) * | 2022-03-17 | 2024-05-03 | 柳州钢铁股份有限公司 | Rolling method of ultra-thick small single-weight low-alloy steel plate |
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|---|---|
| CN107363093B (en) | 2019-01-08 |
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