CN105689389B - A kind of rolling mill practice of hot rolling tooth form band steel - Google Patents
A kind of rolling mill practice of hot rolling tooth form band steel Download PDFInfo
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- CN105689389B CN105689389B CN201610131220.7A CN201610131220A CN105689389B CN 105689389 B CN105689389 B CN 105689389B CN 201610131220 A CN201610131220 A CN 201610131220A CN 105689389 B CN105689389 B CN 105689389B
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- steel
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- tooth form
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- hot rolling
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- 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
- B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/0805—Flat bars, i.e. having a substantially rectangular cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Metal Rolling (AREA)
Abstract
A kind of rolling mill practice of hot rolling tooth form band steel, belongs to technical field of steel production, technique includes：A, thickness 2~10mm, wide 300~1000mm steel band cut after level(l)ing machine leveling touch it is neat；B, input to energy storage pool, send into bending machine and are bent into serpentine bend shape afterwards；C, feeding heating furnace, 800 °~950 ° of furnace temp；D, be fed sequentially into rough rolling vertical roller mill, roughing flat roll mill rolling, drafts is respectively 0.5~2mm；E, removing scale on surface, water-cooled cooling, then M tooth form band steel rolled pieces are rolled out by four-high mill；F, through finish rolling vertical miller, the processing of finish rolling flat roll mill, then by tracking cutting machine scale cutting is carried out, finished product is pushed into cold bed by panel turnover device, band steel collection device is transported to by chain stretching device, stacking packing is carried out.The present invention can directly provide structure steel fabrication, the scale that need not be sheared, weld, fixed width, the rolling mill practice of the hot rolling M tooth form band steels of fixed length.
Description
Technical field
The invention belongs to technical field of steel production, it is 2~8mm to design a kind of thickness, and width is 21~150mm, edge
Tooth form is the milling method of M type tooth band steels.
Background technology
Flat hot rolled bar has good intensity, and the surface of flat hot rolled bar compared to other steel is that comparison is bright and clean.
Closely, this also just determines that flat hot rolled bar is very adapted to welding to the span of the other thickness specification for being exactly flat hot rolled bar.
It is noted that the load capacity of band steel is larger.And component, staircase and fence and other items are welded during production
It is an essential processing technology.Meanwhile, such object must also require that the surface of steel is smooth, can carry certain
Measure big weight.And some features of band steel exactly fully meet requirement.So allowing for flat hot rolled bar becomes processing and fabricating structure
The raw material of part, staircase and fence and other items.For a kind of widely used steel, its can by user's request, carry out it is fixed it is thick,
The production of fixed width, fixed length, is manufacture of steel structure industry, machinery manufacturing industry, auto industry, mining machinery, hoisting machinery, building trade
And essential class raw material in other industries.
Existing band steel rolling mill practice is to utilize the billet after cogging, and the short material for being cut into certain size promotes heating furnace,
Then short material is pulled out and is fed into milling train again by workman from heating furnace.This technique labor strength is big, and production cycle length (needs elder generation
Cogging is rolled again), lumber recovery is low (a large amount of iron scales and band steel crop are produced in the operation of rolling).
The content of the invention
For solve problem above, the present invention devise a kind of rolling mill practice of hot rolling tooth form band steel, using it is wide by 300~
1000mm, 2~10mm of thickness strip is rolled, and this automation technolo degree is high, and lumber recovery is high, consume low, particularly band steel
Heating-up temperature is relatively low, saves substantial amounts of energy consumption.
The technical solution adopted by the present invention is：A kind of rolling mill practice of hot rolling tooth form band steel, it is important to：Described technique bag
Include following steps：
A, pretreatment：Take steel band raw material and cut out it to obtain the steel band of predetermined width along longitudinal direction, length reaches pre-
Touched together if cutting steel band after value, then steel band is wound, it is standby；
B, input to energy storage pool through pinch machine, carry out temporary storage in energy storage pool, pinch machine is started by steel after energy storage pool is full
Band feeding bending machine, serpentine bend shape is bent into by bending machine by steel band；
C, bending is handled after steel band heating furnace is sent into by pusher, the temperature of heating furnace is 800 °~950 °；
D, the steel band that will pass through heating by pinch roll, furnace delivery table be fed sequentially into rough rolling vertical roller mill, rolling one
Road, 800 °~950 ° of roughing temperature, drafts is 0.5~2mm；Roughing flat roll mill, roll two roads, drafts be 0.5~
1mm；
E, by pneumatics wind remove scale on surface, pneumatics wind pressure be 0.5MPa~0.7MPa；Water-cooled cooling, then by filling
Four-high mill equipped with M type gear rings rolls out M tooth form band steel rolled pieces；
F, again by M tooth form band steel rolled pieces through finish rolling vertical miller, finish rolling flat roll mill processing, be processed into finished product requirement chi
It is very little；Scale cutting is carried out by tracking cutting machine again；Cold bed position is input to by cold-bed run-in table, finished product is pushed away by panel turnover device
To cold bed；Band steel collection device is transported to through chain stretching device, stacking packing is carried out.
Steel band raw material described in step A are thickness 2~10mm, wide 300~1000mm package steel band, are cut longitudinal
Steel band will be wrapped using overhead traveling crane before and is lifted into progress uncoiling arrangement on uncoiling feeding machine.
It is the steel band that 21~150mm of width is cut into using slitting line that described longitudinal direction, which is cut,.
In step A longitudinally cut after by steel band by transition roller-way enter level(l)ing machine leveling, after cut through hydraulic shearer
It is disconnected to touch together.
Winding described in step A is winder.
Step B in input to before energy storage pool, with 50 cutters by the concordant crop of steel band, by butt welding machine by different batches steel
Band butt welding is integral.
Dimensions length 5m~7mm that finished product desired size control described in step F is cut in thickness 2mm~8mm, scale.
Roughing temperature described in step D is 850-900 DEG C.
The cold bed size is 5m*3m.
The temperature of described heating furnace is 850-900 DEG C.
The beneficial effects of the invention are as follows：
1. devising energy storage pool before bending machine, bending machine speed is overcome comparatively fast, the problem of steel band is insufficient, so that
Improve band steel and integrally roll speed；
2. employing bending machine, bending is carried out before heating furnace is entered to band steel, it is ensured that heating furnace memory storage is more
Strip, have time enough give strip heating, it is ensured that breaking down temperature；
3. milling train control is mounted with automatic control system, it is ensured that technique for continuous rolling, it is ensured that band steel width and thickness chi
The characteristics of very little accurate and bar shaped good straightness degree；
4. band steel cutting to length takes tracking and cuts shear, according to signal detection, control system, band steel is determined
Sheared before chi, shear rate is effectively raised, while saving substantial amounts of human cost；
5. present invention process automaticity is high, lumber recovery is high, consume low, and particularly band steel heating-up temperature is relatively low, saves
Substantial amounts of energy consumption；Product quality is better than other techniques.
Brief description of the drawings
Fig. 1 is rolling mill practice schematic flow sheet of the present invention.
In accompanying drawing, 1 is uncoiling feeding machine, 2, cut front roller-way, 3, slitting line, 4, transition roller-way, 5, level(l)ing machine, 6, hydraulic pressure
Cutting machine, 7, winder, 8,50 cutters, 9, butt welding machine, 10, pinch machine, 11, energy storage pool, 12, bending machine, 13, pusher,
14th, heating furnace, 15, pinch roll, 16, rough rolling vertical roller mill, 17, roughing flat roll mill, 18, four-high mill, 19, finish rolling edger roll rolls
Machine, 20, finish rolling flat roll mill, 21, tracking cutting machine, 22, cold-bed run-in table, 23, cold bed, 24, collection device.
Embodiment
A kind of rolling mill practice of hot rolling tooth form band steel, described technique comprises the following steps：
A, by 2~10mm of thickness, wide 300~1000mm steel band is cut into 21~150mm of width steel band using slitting line,
Level(l)ing machine leveling is entered by transition roller-way again, after cut through hydraulic shearer touch it is neat after, wound by winder, it is standby；
B, with 50 cutters by the concordant crop of steel band, different batches steel band butt welding is integral by butt welding machine, through pinch
Machine is inputted to energy storage pool, and temporary storage is carried out in energy storage pool, pinch machine, bending machine is started after energy storage pool is full steel band feeding is bended
Machine, serpentine bend shape is bent into by bending machine by steel band；
C, bending is handled after steel band heating furnace is sent into by pusher, the temperature of heating furnace is 800 °~950 °；
D, the steel band that will pass through heating by pinch roll, furnace delivery table be fed sequentially into rough rolling vertical roller mill, rolling one
Road, 800 DEG C~950 DEG C of roughing temperature, drafts is 0.5~2mm；Roughing flat roll mill, roll two roads, drafts be 0.5~
1mm；
E, by pneumatics wind remove scale on surface, pneumatics wind pressure be 0.5MPa~0.7MPa；Water-cooled cooling, then by four
Roller mill rolls out M tooth form band steel rolled pieces, and four-high mill is equipped with M type gear rings, and installation diagram is company's mature technology；
F, again by M tooth form band steel rolled pieces through finish rolling vertical miller, finish rolling flat roll mill processing, be processed into finished product requirement chi
Very little, size Control is in width 2mm~8mm；Again by tracking cutting machine carry out scale cutting, size Control length 5.0m~
7.0m；Cold bed position is input to by cold-bed run-in table, finished product cold bed is pushed into by panel turnover device, cold bed size is 5m*3m；Through
Chain stretching device is transported to band steel collection device, carries out stacking packing.
With reference to embodiment, the present invention is described in detail.
By wide 300~1000mm, 2~10mm of thickness package steel band is lifted on uncoiling feeding machine 1 using overhead traveling crane, through uncoiling
Slitting line 3 is moved into by cutting front roller-way 2 after arrangement, 21~150mm of width steel band is cut into, by transition roller-way 4, through level(l)ing machine 5
Afterwards, cut after touching together, wound by winder 7 by hydraulic shearer 6.Again through 50 cutters 8, butt welding machine 9, pinch machine 10, input
To energy storage pool 11, it is pushed into bending machine 12 and is bent into serpentine bend shape, being pushed into heating furnace 14 by pusher 13 is heated to
800 °~950 ° temperature, it is most handy 850-900 DEG C, by rolling rhythm, successively by pinch roll 15, furnace delivery table, it is transported to roughing
Vertical miller 16, roughing flat roll mill 17, one of rolling, two roads, drafts is respectively 0.5~2mm, and surface is removed by pneumatics wind
Iron scale, cooling water is projected in the nozzle of device upper and lower, left and right and carries out appropriate cooling, cooling extent is 50 DEG C~150
DEG C, then rolled out by four-high mill 18 and require M tooth form band steels, then controlled through finish rolling vertical miller 19, to roll out finished product requirement wide
Size is spent, finish rolling flat roll mill 20 is controlled, and finally rolls out finished product desired size rolled piece, rolled piece goes out after mm finishing mill unit, by tracking
Cutting machine 21 carries out scale cutting, is input to cold bed position by cold-bed run-in table 22, finished product is pushed into cold bed by panel turnover device
23, band steel collection device 24 is transported to by chain stretching device, stacking packing is carried out.
It is 2~8mm the present invention relates to a kind of thickness, width is 21~150mm flat hot rolled bar rolling mode, by M fonts
In periodic arrangement arc groove along band steel body extension direction in one row set, and at the center line on.
Present invention process automaticity is high, and lumber recovery is high, consume low, and particularly band steel heating-up temperature is relatively low, saves
Substantial amounts of energy consumption.
The chemical composition of the tooth form band steel prepared using present invention process is reference can be made to table 1；Mechanical property can be found in table 2.
The chemical composition of table 1
The mechanical property of table 2
Claims (10)
1. a kind of rolling mill practice of hot rolling tooth form band steel, it is characterised in that：Described technique comprises the following steps：
A, pretreatment：Take steel band raw material and cut out it to obtain the steel band of predetermined width along longitudinal direction, length reaches preset value
Steel band is cut afterwards and touched together, then steel band is wound, it is standby；
B, through pinch machine (10) input to energy storage pool (11), carry out temporary storage in energy storage pool, pinch machine started after energy storage pool is full
(10) steel band is sent into bending machine (12), steel band is bent into serpentine bend shape by bending machine (12)；
C, bending is handled after steel band heating furnace (14) is sent into by pusher (13), the temperature of heating furnace (14) for 800 °~
950°；
D, the steel band that will pass through heating by pinch roll (15), furnace delivery table be fed sequentially into rough rolling vertical roller mill (16), roll
Together, 800 °~950 ° of roughing temperature, drafts is 0.5~2mm to system；Roughing flat roll mill (17), rolls two roads, and drafts is
0.5~1mm；
E, by pneumatics wind remove scale on surface, pneumatics wind pressure be 0.5MPa~0.7MPa；Water-cooled cooling, then by being equipped with
The four-high mill (18) of M type gear rings rolls out M tooth form band steel rolled pieces；
F, again by M tooth form band steel rolled pieces through finish rolling vertical miller (19), finish rolling flat roll mill (20) processing, be processed into finished product requirement
Size；Scale cutting is carried out by tracking cutting machine (21) again；Cold bed position is input to by cold-bed run-in table (22), filled by turnover panel
Put and finished product is pushed into cold bed (23)；Band steel collection device (24) is transported to through chain stretching device, stacking packing is carried out.
2. a kind of rolling mill practice of hot rolling tooth form band steel according to claim 1, it is characterised in that：Described in step A
Steel band raw material are thickness 2~10mm, wide 300~1000mm package steel band, and steel will be wrapped using overhead traveling crane before longitudinally cutting out
Band is lifted into progress uncoiling arrangement on uncoiling feeding machine (1).
3. a kind of rolling mill practice of hot rolling tooth form band steel according to claim 1, it is characterised in that：Cut out described longitudinal direction
It is the steel band that 21~150mm of width is cut into using slitting line (3).
4. a kind of rolling mill practice of hot rolling tooth form band steel according to claim 1, it is characterised in that：Longitudinally cut in step A
Steel band is entered into level(l)ing machine (5) leveling by transition roller-way (4) after sanction, after cut through hydraulic shearer (6) touch it is neat.
5. a kind of rolling mill practice of hot rolling tooth form band steel according to claim 1, it is characterised in that：Described in step A
Winding is winder.
6. a kind of rolling mill practice of hot rolling tooth form band steel according to claim 1, it is characterised in that：Step B is being inputted extremely
By the butt welding of different batches steel band it is one by butt welding machine (9) with 50 cutters (8) by the concordant crop of steel band before energy storage pool (11)
It is overall.
7. a kind of rolling mill practice of hot rolling tooth form band steel according to claim 1, it is characterised in that：Described in step F into
Dimensions length 5m~7mm that the control of product desired size is cut in thickness 2mm~8mm, scale.
8. a kind of rolling mill practice of hot rolling tooth form band steel according to claim 1, it is characterised in that：Described in step D
Roughing temperature is 850-900 DEG C.
9. a kind of rolling mill practice of hot rolling tooth form band steel according to claim 1, it is characterised in that：The cold bed size is
5m*3m。
10. a kind of rolling mill practice of hot rolling tooth form band steel according to claim 1, it is characterised in that：Described heating furnace
Temperature be 850-900 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131220.7A CN105689389B (en) | 2016-03-08 | 2016-03-08 | A kind of rolling mill practice of hot rolling tooth form band steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131220.7A CN105689389B (en) | 2016-03-08 | 2016-03-08 | A kind of rolling mill practice of hot rolling tooth form band steel |
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| Publication Number | Publication Date |
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| CN105689389A CN105689389A (en) | 2016-06-22 |
| CN105689389B true CN105689389B (en) | 2017-09-05 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107913908A (en) * | 2017-11-13 | 2018-04-17 | 天津鹏通金属结构制造有限公司 | A kind of high-strength light section steel grating processing technology |
| CN114083381A (en) * | 2021-11-18 | 2022-02-25 | 江苏中旭冷拉型钢有限公司 | Fine cold-drawn flat steel grinding tool and production process |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10156087B4 (en) * | 2001-11-16 | 2005-06-02 | Müller Weingarten AG | Device for processing a metal strip with different thicknesses |
| CN1903460A (en) * | 2006-07-29 | 2007-01-31 | 烟台新科钢结构有限公司 | Method for producing teethed flat cold-rolled bar |
| IT1402237B1 (en) * | 2010-07-21 | 2013-08-28 | Danieli Off Mecc | PROCEDURE AND LINE OF CASTING AND CONTINUOUS LAMINATION TO MAKE LONG METAL LAMINATE PRODUCTS |
| CN204171441U (en) * | 2014-09-17 | 2015-02-25 | 新兴河北冶金资源有限公司 | A kind of fully automatic hydraulic is followed the tracks of and is cut |
| CN104190770B (en) * | 2014-09-19 | 2016-03-02 | 新兴河北冶金资源有限公司 | A kind of band steel bending device |
| CN204470686U (en) * | 2015-01-15 | 2015-07-15 | 烟台新科钢结构有限公司 | The profile of tooth band steel process equipment of the shaping unification of a kind of slitting |
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