CN103551398B - A kind of non-orientation silicon steel hot rolled coil Wedge Control - Google Patents
A kind of non-orientation silicon steel hot rolled coil Wedge Control Download PDFInfo
- Publication number
- CN103551398B CN103551398B CN201310547594.3A CN201310547594A CN103551398B CN 103551398 B CN103551398 B CN 103551398B CN 201310547594 A CN201310547594 A CN 201310547594A CN 103551398 B CN103551398 B CN 103551398B
- Authority
- CN
- China
- Prior art keywords
- frame
- finishing mill
- control
- heating
- gap
- 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.)
- Active
Links
Abstract
The present invention relates to hot-strip template control technology field, particularly relate to a kind of non-orientation silicon steel hot rolled coil Wedge Control.Described control method, by setting rolling scaduled, to control heating furnace heating-up temperature, controlling finishing mill mill stiffness, setting finishing mill edge rolling power, setting finishing stand flipper guide opening degree side-play amount and take automatic flat-adjustable function, hot rolled coil wedge shape quality is controlled, drastically increase the wedge shape qualification rate of non-orientation silicon steel, improve the plate shape precision of cold-rolled silicon iron simultaneously.
Description
Technical field
The present invention relates to hot-strip template control technology field, particularly relate to a kind of non-orientation silicon steel hot rolled coil Wedge Control.
Background technology
The same plate difference index of research display cold-rolled silicon iron directly affects by the wedge shape of hot rolled coil.Non-orientation silicon steel has that hot rolling temperature is low, silicone content high, and rolling stability is relatively poor, very easily occurs the situations such as sideslip.The wedge shape of non-orientation silicon steel hot rolled coil does not have complete set and control method that is effective, system all the time.Because the influence factor of wedge shape is a lot, but several factors is difficult to monitoring and controls, and the control generally for wedge shape is more the leveling control that general requirement producers strengthen roughing and finish rolling.But this requirement not only allows producers have no way of doing it, and the labour intensity of frequent Levelling operation is also comparatively large, and the control effects of wedge shape is very undesirable.
Summary of the invention
The embodiment of the present invention provides a kind of non-orientation silicon steel hot rolled coil Wedge Control, effectively improves the wedge shape quality of hot rolled coil, improves the plate shape precision of cold-reduced silicon sheet.
Embodiments provide a kind of non-orientation silicon steel hot rolled coil Wedge Control, described method comprises:
By rolling scaduled for non-orientation silicon steel continuous layout more than three, adjacent two described rolling scaduled heating-up temperature fluctuations are less than 40 DEG C;
By described rolling scaduled middle heating furnace in the heating and temperature control of heat-recovery section at 700-850 DEG C; Described heating furnace in the heating and temperature control of preheating section at 950 ± 20 DEG C; Described heating furnace is in the heating and temperature control of the first bringing-up section at 1150 ± 20 DEG C, and the heat time controls at >=30min; Described heating furnace is in the heating and temperature control of the second bringing-up section at 1160 ± 20 DEG C, and the heat time controls at >=30min; Described heating furnace is in the heating and temperature control of soaking zone at 1120 ± 10 DEG C, and the heat time controls at >=30min;
Adjustment finishing mill gap, makes finishing mill both sides poor rigidity control within 30t;
Implementing constant pressure pattern to the edger roll of finishing mill, is 100-150kN by rolling force setup;
F2-F4 frame side guide plate opening degree side-play amount in 7 frame mm finishing mill unit is set as 10mm, and F5-F7 frame side guide plate opening degree side-play amount is set as 40mm;
Automatic flat-adjustable function is adopted in finishing stands.
Further, every two described rolling scaduled arranges four blocks of cold rolling material as transition, and the heating-up temperature of described non-orientation silicon steel is 1120 DEG C, and the heating-up temperature of described cold rolling material is 1150 DEG C.
Further, described adjustment finishing mill gap, makes finishing mill both sides poor rigidity control, within 30t, to be specially: in maintenance process, take the method adjustment finishing mill gap adjusting memorial archway gap, pressure head contact surface surface quality and bearing block gap, make finishing mill both sides poor rigidity be 17t.
Further, the rolling force setup of the edger roll of described finishing mill is 100-120kN.
Further, describedly in finishing stands, adopt automatic flat-adjustable function, specifically comprise: in Rolling Production process, regulate the roll gap of F1, F2, F3, F7 according to the wedge shape of F7 outlet, according to F4, F5, F6 kink both sides tension force bias adjustment F4, the roll gap of F5, F6.
The beneficial effect of the embodiment of the present invention is as follows:
The non-orientation silicon steel hot rolled coil Wedge Control that the embodiment of the present invention provides, rolling scaduled by setting, control the heating-up temperature of heating furnace, control finishing mill mill stiffness, setting finishing mill edge rolling power, set finishing stand flipper guide opening degree side-play amount and take automatic flat-adjustable function, from the temperature homogeneity affecting wedge shape, rolled piece in and finish rolling regulate three aspects to control wedge shape quality, drastically increase the wedge shape qualification rate of non-orientation silicon steel, the total length qualification rate of ± 20 μm brings up to more than 90% by 70%, improve the plate shape precision of cold-rolled silicon iron simultaneously.
Detailed description of the invention
For enabling those skilled in the art understand the present invention more in detail, describe the present invention by the following examples.
The embodiment of the present invention provides a kind of non-orientation silicon steel hot rolled coil Wedge Control, comprises the steps:
A. by rolling scaduled for non-orientation silicon steel continuous layout more than three, adjacent two rolling scaduled heating-up temperature fluctuations are less than 40 DEG C;
Further, also comprise in described steps A: every two rolling scaduled arranges four blocks of cold rolling material as transition, and the heating-up temperature of non-orientation silicon steel is 1120 DEG C, and the heating-up temperature of cold rolling material is 1150 DEG C.
B. by rolling scaduled middle heating furnace in the heating and temperature control of heat-recovery section at 700-850 DEG C; Heating furnace in the heating and temperature control of preheating section at 950 ± 20 DEG C; Heating furnace is in the heating and temperature control of the first bringing-up section at 1150 ± 20 DEG C, and the heat time controls at >=30min; Described heating furnace is in the heating and temperature control of the second bringing-up section at 1160 ± 20 DEG C, and the heat time controls at >=30min; Described heating furnace is in the heating and temperature control of soaking zone at 1120 ± 10 DEG C, and the heat time controls at >=30min; Concrete, the heat target value of heating furnace top, bottom, heated perimeter and heat time are as shown in the table.
C. adjust finishing mill gap, make finishing mill both sides poor rigidity control within 30t;
Particularly, before Rolling Production, take the method adjustment finishing mill gaps such as adjustment memorial archway gap, pressure head contact surface surface quality and bearing block gap, make finishing mill both sides poor rigidity be 17t.
D. implementing constant pressure pattern to the edger roll of finishing mill, is 100-150kN by rolling force setup; Preferably, rolling force setup is 100-120kN.
E. F2-F4 frame side guide plate opening degree side-play amount in 7 frame mm finishing mill unit is set as 10mm, F5-F7 frame side guide plate opening degree side-play amount is set as 40mm;
F. in finishing stands, automatic flat-adjustable function is adopted;
Particularly, in Rolling Production process, regulate the roll gap of F1, F2, F3, F7 according to the wedge shape of F7 outlet, according to F4, F5, F6 kink both sides tension force bias adjustment F4, the roll gap of F5, F6.
The beneficial effect that the embodiment of the present invention is brought is as follows:
1, continuously layout more than three is rolling scaduled and temperature difference between control plan effectively can control furnace temp fluctuation, reduces slab temperature contrast in the width direction, the impact that reduction temperature is rolling wedge-shaped on finish rolling;
2, arrange cold rolling material to be in order to reach be that working roll temperature reaches normal rolling temperature after replacing working roll, can ensure that rolling is stablized, reduce wedge shape fluctuation;
3, specification heating furnace each section of temperature and heat time are conducive to the temperature homogeneity improving slab thickness direction, improve rolling stability, reduce wedge shape fluctuation;
4, reduce the leveling value that finishing mill both sides poor rigidity effectively can reduce milling train, reduce the fluctuation range of wedge shape;
5, the little edger roll of finish rolling adopts permanent roll-force pattern and limits flipper guide opening degree and intermediate blank can be made to realize forced centering at finish rolling entrance, the wedge shape fluctuation avoiding strip running deviation to bring;
6, adopt automatic leveling can reduce the problems such as choose opportunities is improper, regulated quantity deviation is large are brought owing to artificially regulating wedge shape to fluctuate problem bigger than normal.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (4)
1. a non-orientation silicon steel hot rolled coil Wedge Control, is characterized in that, described method comprises:
By rolling scaduled for non-orientation silicon steel continuous layout more than three, adjacent two described rolling scaduled heating-up temperature fluctuations are less than 40 DEG C;
By described rolling scaduled middle heating furnace in the heating and temperature control of heat-recovery section at 700-850 DEG C; Described heating furnace in the heating and temperature control of preheating section at 950 ± 20 DEG C; Described heating furnace is in the heating and temperature control of the first bringing-up section at 1150 ± 20 DEG C, and the heat time controls at >=30min; Described heating furnace is in the heating and temperature control of the second bringing-up section at 1160 ± 20 DEG C, and the heat time controls at >=30min; Described heating furnace is in the heating and temperature control of soaking zone at 1120 ± 10 DEG C, and the heat time controls at >=30min;
Adjustment finishing mill gap, makes finishing mill both sides poor rigidity control within 30t;
Implementing constant pressure pattern to the edger roll of finishing mill, is 100-150kN by rolling force setup;
F2-F4 frame side guide plate opening degree side-play amount in 7 frame mm finishing mill unit is set as 10mm, and F5-F7 frame side guide plate opening degree side-play amount is set as 40mm;
Automatic flat-adjustable function is adopted in finishing stands.
2. control method as claimed in claim 1, it is characterized in that, described adjustment finishing mill gap, finishing mill both sides poor rigidity is made to control within 30t, be specially: in maintenance process, take the method adjustment finishing mill gap adjusting memorial archway gap, pressure head contact surface surface quality and bearing block gap, make finishing mill both sides poor rigidity be 17t.
3. control method as claimed in claim 1, it is characterized in that, the rolling force setup of the edger roll of described finishing mill is 100-120kN.
4. control method as claimed in claim 1, it is characterized in that, describedly in finishing stands, adopt automatic flat-adjustable function, specifically comprise: in finishing stands, the roll gap of F1 frame, F2 frame, F3 frame, F7 frame is regulated, according to the roll gap of F4 frame, F5 frame, F6 machine frame loop both sides tension force bias adjustment F4 frame, F5 frame, F6 frame according to the wedge shape of F7 rack outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310547594.3A CN103551398B (en) | 2013-11-06 | 2013-11-06 | A kind of non-orientation silicon steel hot rolled coil Wedge Control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310547594.3A CN103551398B (en) | 2013-11-06 | 2013-11-06 | A kind of non-orientation silicon steel hot rolled coil Wedge Control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103551398A CN103551398A (en) | 2014-02-05 |
| CN103551398B true CN103551398B (en) | 2015-09-30 |
Family
ID=50005846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310547594.3A Active CN103551398B (en) | 2013-11-06 | 2013-11-06 | A kind of non-orientation silicon steel hot rolled coil Wedge Control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103551398B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394522B (en) * | 2013-08-02 | 2015-03-04 | 中冶南方工程技术有限公司 | Onsite testing method of control efficacy coefficient of strip shapes of cold-rolled strip steel |
| CN105710136B (en) * | 2016-02-03 | 2018-03-06 | 首钢总公司 | A kind of non-orientation silicon steel production control method and system |
| CN108405628B (en) * | 2018-03-13 | 2020-04-07 | 武汉钢铁有限公司 | Optimal section profile control method for hot-rolled non-oriented silicon steel |
| CN109465297B (en) * | 2018-11-02 | 2020-06-30 | 首钢智新迁安电磁材料有限公司 | Method and device for improving horizontal thickness difference control level of high-grade non-oriented silicon steel |
| CN110216152B (en) * | 2019-05-30 | 2020-12-08 | 武汉钢铁有限公司 | Control method for improving wedge shape of strip steel rolled in two-phase region |
| CN110340144B (en) * | 2019-07-02 | 2021-01-08 | 北京首钢股份有限公司 | Hot rolling method for thin-specification ultrahigh silicon steel |
| CN111266416B (en) * | 2020-01-21 | 2021-08-20 | 鞍钢股份有限公司 | Production method for controlling warping of non-oriented silicon steel rough rolling plate blank |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000280015A (en) * | 1999-03-31 | 2000-10-10 | Kawasaki Steel Corp | Method and equipment to control meandering of hot- rolled sheet steel strip |
| CN1483526A (en) * | 2002-09-19 | 2004-03-24 | 鞍钢集团新钢铁有限责任公司 | Mthod for controlling roller gap of precision rolling machine of band steel |
| CN1852780A (en) * | 2004-07-20 | 2006-10-25 | 东芝三菱电机产业系统株式会社 | Method of setting/controlling wedge in plate material rolling |
| JP2008221232A (en) * | 2007-03-08 | 2008-09-25 | Toshiba Mitsubishi-Electric Industrial System Corp | Temperature control method and temperature control system for hot rolling mill |
| JP2010005655A (en) * | 2008-06-26 | 2010-01-14 | Sumitomo Metal Ind Ltd | Method and equipment for manufacturing hot-rolled steel plate |
| CN101934292A (en) * | 2010-08-31 | 2011-01-05 | 江苏省沙钢钢铁研究院有限公司 | Automatic control method for camber and wedge of hot rolled strip roughing mill |
| CN103203368A (en) * | 2012-01-17 | 2013-07-17 | 宝山钢铁股份有限公司 | Wedge control method for hot rolling strip steel |
| CN103302104A (en) * | 2012-03-13 | 2013-09-18 | 宝山钢铁股份有限公司 | Method for manufacturing hot rolled silicon steel |
-
2013
- 2013-11-06 CN CN201310547594.3A patent/CN103551398B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000280015A (en) * | 1999-03-31 | 2000-10-10 | Kawasaki Steel Corp | Method and equipment to control meandering of hot- rolled sheet steel strip |
| CN1483526A (en) * | 2002-09-19 | 2004-03-24 | 鞍钢集团新钢铁有限责任公司 | Mthod for controlling roller gap of precision rolling machine of band steel |
| CN1852780A (en) * | 2004-07-20 | 2006-10-25 | 东芝三菱电机产业系统株式会社 | Method of setting/controlling wedge in plate material rolling |
| JP2008221232A (en) * | 2007-03-08 | 2008-09-25 | Toshiba Mitsubishi-Electric Industrial System Corp | Temperature control method and temperature control system for hot rolling mill |
| JP2010005655A (en) * | 2008-06-26 | 2010-01-14 | Sumitomo Metal Ind Ltd | Method and equipment for manufacturing hot-rolled steel plate |
| CN101934292A (en) * | 2010-08-31 | 2011-01-05 | 江苏省沙钢钢铁研究院有限公司 | Automatic control method for camber and wedge of hot rolled strip roughing mill |
| CN103203368A (en) * | 2012-01-17 | 2013-07-17 | 宝山钢铁股份有限公司 | Wedge control method for hot rolling strip steel |
| CN103302104A (en) * | 2012-03-13 | 2013-09-18 | 宝山钢铁股份有限公司 | Method for manufacturing hot rolled silicon steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103551398A (en) | 2014-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103551398B (en) | A kind of non-orientation silicon steel hot rolled coil Wedge Control | |
| CN1103647C (en) | Method and arrangement for producing hot-rolled strip | |
| CN106475424B (en) | A kind of control method of Hot Rolling Strip sideslip | |
| CN103484643B (en) | Method for preventing hot rolling edge fractures in oriented silicon steel | |
| US9914167B2 (en) | Method of pre-controlling shapes of continuous-casting slab head and tail for reducing head and tail cut amount of hot rolling intermediate slab | |
| CN104971948B (en) | Cold-strip steel edge drop method through working roll asymmetric shifting control | |
| CN104209339B (en) | A kind of method utilizing roughing to carry out width of plate slab control against passage edger roll roll gap measurement | |
| CN106984652B (en) | The method for controlling finishing stand sideslip according to breakdown bar camber | |
| CN102836882B (en) | The removing method of nose is produced during a kind of hot-strip threading | |
| CN105268747B (en) | Hot rolled strip convexity on-line closed loop control method | |
| CN103752623A (en) | Automatic control method for improving camber of rough mill intermediate billet | |
| CN106345819B (en) | A kind of control method of hot continuous rolling fine-rolling strip steel afterbody rolling stability | |
| CN104438460B (en) | Band steel is flat rectifys method | |
| CN101927263B (en) | Method for improving rolling stability of container thin material | |
| CN100493750C (en) | Method for ensuring the uniform temperature of the full-length of the hot fine rolling band steel | |
| CN106914494B (en) | The plat control system and method for hot-strip | |
| CN107096795A (en) | A kind of manufacture method for reducing edge defects of hot rolled strip steel | |
| CN104148404A (en) | Hot rolled strip flatness automatic control method | |
| CN104858245B (en) | Rough-rolling head warping and bending control method for hot continuous rolling mill based on multiple heating furnaces | |
| CN103008361B (en) | Method for controlling bending of steel plate head | |
| CN202061890U (en) | Tensioning force adjusting device for micro cold rolling equipment | |
| CN113664047A (en) | Production method for eliminating local high points of wide and thick hot rolling of cold-rolled material | |
| CN103433298A (en) | Method for controlling tail portion of thin rolled container plate | |
| CN103506403A (en) | Control method of hot rolling width of wedge-shaped slab | |
| CN103056160A (en) | X-I short-process rolling unit for H-shaped steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: CAPITAL IRON + STEEL GENERAL CO. Effective date: 20140411 Owner name: BEIJING SHOUGANG CO., LTD. Free format text: FORMER OWNER: HEBEI SHOUGANG QIAN'AN STEEL CO., LTD. Effective date: 20140411 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 064404 TANGSHAN, HEBEI PROVINCE TO: 100041 SHIJINGSHAN, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20140411 Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Applicant after: Beijing Shougang Co., Ltd. Address before: Yangzidian Town, Tangshan City City, Qian'an province Hebei 064404 Applicant before: Hebei Shougang Qian'an Steel Co., Ltd. Applicant before: Capital Iron & Steel General Company |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180504 Address after: 064400 No. 025, Zhao an street, western industrial area, Qian'an, Tangshan City, Hebei Patentee after: Shougang Zhixin Qian'an Electromagnetic Material Co., Ltd. Address before: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: Beijing Shougang Co., Ltd. |