CN203972460U - The equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels - Google Patents
The equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels Download PDFInfo
- Publication number
- CN203972460U CN203972460U CN201420374294.XU CN201420374294U CN203972460U CN 203972460 U CN203972460 U CN 203972460U CN 201420374294 U CN201420374294 U CN 201420374294U CN 203972460 U CN203972460 U CN 203972460U
- Authority
- CN
- China
- Prior art keywords
- screw
- wire
- equipment
- rolling
- casting blanks
- 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.)
- Expired - Fee Related
Links
Landscapes
- Metal Rolling (AREA)
Abstract
The utility model relates to a kind of equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels, comprise pre-finishing mill, thick middle milling train and finishing mill, the pass that thick middle milling train is 1 ~ 8 is box pass, aperture is followed successively by 25mm, 20mm, 20mm, 16mm, 15mm, 14mm, 12mm, 10mm, and the 1st, 3,5 passes adopt double radius ellipse structure.The utility model is by redistributing lengthening coefficient, forming a groove and guide and guard, ensure that the rolling load of each passage is within equipment allowed band, realized by rational rolling deformation the object that adopts 23 passage rolling Φ 8mm screw-thread steels of 150 square casting blanks two-wire on the basis of existing equipment simultaneously.Compare 140 square casting blanks, not only discharged the production capacity of steel mill, the lumber recovery of steel rolling also gets a promotion, and output increases simultaneously, and every cost all has decline by a relatively large margin.
Description
Technical field
The utility model relates to high-speed wire rolling technical field, refers more particularly to the pass design of the production line of 150 square casting blanks two-wires rolling simultaneously.
Background technology
These several years, along with the progress of steel rolling technology and the upgrading of steelmaking equipment, the technique of utilizing rolling 130 square casting blanks and rolling 140 square casting blanks to produce Φ 8mm screw-thread steel " was fallen behind " gradually.On the one hand, the many uses of steel mill is the steel billet that 150 billet casters refine 140 sides.This has upset the rhythm of production of steel-making effective.On the other hand, mostly be on the market 150 sides' steel billet, 140 sides' very limitation of steel billet source, causes production line to be difficult to " foot of having enough out ".
But, 150 square casting blanks two-wires are produced Φ 8mm screw-thread steel at least by 25 passages simultaneously, by the subject matter that 23 passages face be: lengthening coefficient distributes more concentrated, the drafts of 2 passages of few use will be shared all the other passages, cause the load of milling train significantly to increase, especially front 6 rolling mills of roughing are because supplied materials is large, and drafts is large, mill load is large, is easy to cause milling train burn bearing, fracture of roller, gear-box to beat the fault such as tooth, the high tripping operation of current of electric when two-wire rolling.
Summary of the invention
In view of the above-mentioned various shortcoming of prior art, the utility model provides a kind of equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels.
The utility model is by the following technical solutions: a kind of method of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels, comprise pre-finishing mill, thick middle milling train and finishing mill, the pass that described thick middle milling train is 1 ~ 8 is box pass, and aperture is followed successively by 25mm, 20mm, 20mm, 16mm, 15mm, 14mm, 12mm, 10mm.
Preferably, the 1st, 3,5 passes of thick middle milling train adopt double radius ellipse structures, to reduce draught pressure.
Preferably, at the outlet side of 2,4,6,8 passage milling trains, guide twisting is installed, can be reversed 60 ° ~ 120 °, enter next passage after steel are reversed to 90 °.Preferably, guide twisting comprises guide wheel and guide plate, and guide wheel comprises symmetrically arranged upper block and lower tumbler.Described guide twisting also comprises crossbeam and supporting plate, in order to stator ring.
The utility model is by redistributing lengthening coefficient, forming a groove and guide and guard, ensure that the rolling load of each passage is within equipment allowed band, realized by rational rolling deformation the object that adopts 23 passage rolling Φ 8mm screw-thread steels of 150 square casting blanks two-wire on the basis of existing equipment simultaneously.Compare 140 square casting blanks, not only discharged the production capacity of steel mill, the lumber recovery of steel rolling also gets a promotion, and output increases simultaneously, and every cost all has decline by a relatively large margin.
Brief description of the drawings
Fig. 1 is 1 ~ 8 pass schematic diagram of the utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
According to the power of motor of each passage, gear-box speed ratio, dimension of roller, in conjunction with rolling principle, redistribute each passage lengthening coefficient.
Former 140 square casting blanks rolling Φ 8mm screw-thread steels, the total coefficient of elongation is that 390.12,23 passage rolling means coefficient of elongation are 1.296.150 square casting blanks rolling Φ 8mm screw-thread steels, the total coefficient of elongation is that 447.85,23 passage rolling means coefficient of elongation are 1.303.The concrete lengthening coefficient of each passage is in table 1.
Table 1 lengthening coefficient distributes
In having redesigned slightly, roll the pass schedule of 1 ~ 8, as shown in Figure 1, be box pass, aperture is followed successively by 25mm, 20mm, 20mm, 16mm, 15mm, 14mm, 12mm, 10mm.
According to the pass of design and on-the-spot guide and guard entity, the key position such as guide wheel, guide plate of guide and guard is redesigned, reach and adopt the 150 square casting blanks operable effect that remains unchanged.
Application the utility model, the lumber recovery of steel rolling has promoted 0.09%, and output has improved 4 tons/hour.
The disclosed technological means of the utility model scheme is not limited only to the disclosed technological means of above-mentioned embodiment, also comprises the technical scheme being made up of above technical characterictic.
Claims (8)
1. the equipment of square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels, comprise pre-finishing mill, thick middle milling train and finishing mill, it is characterized in that: the pass that described thick middle milling train is 1 ~ 8 is box pass, and aperture is followed successively by 25mm, 20mm, 20mm, 16mm, 15mm, 14mm, 12mm, 10mm.
2. the equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels according to claim 1, is characterized in that: the 1st, 3,5 passes of described thick middle milling train adopt double radius ellipse structures.
3. the equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels according to claim 1, is characterized in that: the outlet side at described 2,4,6,8 passage milling trains is installed guide twisting.
4. the equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels according to claim 3, is characterized in that: the windup-degree of described guide twisting is 60 ° ~ 120 °.
5. the equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels according to claim 3, is characterized in that: described guide twisting comprises guide wheel and guide plate.
6. the equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels according to claim 3, is characterized in that: described guide wheel comprises symmetrically arranged upper block and lower tumbler.
7. the equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels according to claim 4, is characterized in that: the windup-degree of described guide twisting is 90 °.
8. the equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels according to claim 4, is characterized in that: described guide twisting also comprises crossbeam and supporting plate, in order to stator ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420374294.XU CN203972460U (en) | 2014-07-08 | 2014-07-08 | The equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420374294.XU CN203972460U (en) | 2014-07-08 | 2014-07-08 | The equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203972460U true CN203972460U (en) | 2014-12-03 |
Family
ID=51969945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420374294.XU Expired - Fee Related CN203972460U (en) | 2014-07-08 | 2014-07-08 | The equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203972460U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001119A (en) * | 2016-06-14 | 2016-10-12 | 大冶特殊钢股份有限公司 | Common pass system for rolling square blanks and circular blanks |
| CN112588820A (en) * | 2020-12-25 | 2021-04-02 | 首钢长治钢铁有限公司 | Production method of hot-rolled mining anchor rod steel |
| CN113926860A (en) * | 2021-09-26 | 2022-01-14 | 南京钢铁股份有限公司 | Method for roughly rolling bar by using large-section rectangular blank |
-
2014
- 2014-07-08 CN CN201420374294.XU patent/CN203972460U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001119A (en) * | 2016-06-14 | 2016-10-12 | 大冶特殊钢股份有限公司 | Common pass system for rolling square blanks and circular blanks |
| CN106001119B (en) * | 2016-06-14 | 2019-03-15 | 大冶特殊钢股份有限公司 | The pass schedule that rolling square billet and round billet share |
| CN112588820A (en) * | 2020-12-25 | 2021-04-02 | 首钢长治钢铁有限公司 | Production method of hot-rolled mining anchor rod steel |
| CN113926860A (en) * | 2021-09-26 | 2022-01-14 | 南京钢铁股份有限公司 | Method for roughly rolling bar by using large-section rectangular blank |
| CN113926860B (en) * | 2021-09-26 | 2024-01-09 | 南京钢铁股份有限公司 | Method for rolling bar materials by large-section rectangular blank type rough rolling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203972460U (en) | The equipment of 150 square casting blanks two-wire 23 passage rolling Φ 8mm screw-thread steels | |
| UA103795C2 (en) | Method of rolling rails, device for rolling rails and rail manufactured by said method | |
| CN104117537B (en) | The method and apparatus of 150 square casting blanks 23 passes Φ 8mm screw-thread steels | |
| CN201534175U (en) | Plug-in rolling guide device | |
| CN102527714A (en) | Rolling method for T-shaped elevator guide rail and rolling pass system | |
| CN101602164A (en) | Rail straightener | |
| CN204974721U (en) | Reduce institutional advancement of supporting seat wearing and tearing in short stress path rolling mill roller system | |
| CN201168720Y (en) | Stepped backing roll for steckel mill | |
| CN201841153U (en) | Centering device for work roll chock of cold-rolling strip steel mill | |
| CN204381077U (en) | A kind ofly reduce the stressed adjustment positioner of slitting wheel | |
| CN202411177U (en) | Double-layer molding press | |
| CN205074336U (en) | Combined roller | |
| CN202786363U (en) | Steel-tapping hole steel baffling device of rod heating furnace | |
| CN103949473B (en) | A kind of Stand Mill four roller smooth double secondary cold-rolling unit roller system collocation method | |
| CN206936017U (en) | A kind of destressing keyway | |
| CN204448839U (en) | Hot tandem rolling mill roller-way bed board structure | |
| CN202290747U (en) | Working roll bearing pedestal of cold rolling mill | |
| CN205128749U (en) | Arc mould and veneer reeling machine are rolled up to angle steel | |
| CN201625666U (en) | Hold-down gear for guide unit seat | |
| CN102294353B (en) | Steel rolling method | |
| CN206243968U (en) | A kind of hot continuous rolling production line conveyor roller roller end structure | |
| CN205183336U (en) | Rolling mill with differential mechanism | |
| CN204194104U (en) | A kind of feeder of metal disintegrating machine | |
| CN107671122A (en) | A kind of hard alloy roll | |
| CN204934441U (en) | Impulse-free robustness screw-rolling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20170708 |