CN101185944A - Method for preventing hot rolling stainless steel band from rolling cuts and device thereof - Google Patents
Method for preventing hot rolling stainless steel band from rolling cuts and device thereof Download PDFInfo
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- CN101185944A CN101185944A CNA2007101856673A CN200710185667A CN101185944A CN 101185944 A CN101185944 A CN 101185944A CN A2007101856673 A CNA2007101856673 A CN A2007101856673A CN 200710185667 A CN200710185667 A CN 200710185667A CN 101185944 A CN101185944 A CN 101185944A
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Abstract
The invention relates to a method and a device used for preventing the rolling scratch of the hot rolling stainless steel belt. The method is that when in rolling, the compressed air is blown out from a row of nozzles arranged by the lightening vertical hole of the outlet guide decking of the last hot finisher, the extrusive airflow forms an air cushion which blows and floats the band steel, thereby causing the lower surface of the band steel to be separated from the nonmetal decking fixed on the outlet guide decking. The device comprises an outlet guide beam arranged on an outlet guide frame of the last hot finisher, wherein, the outlet guide beam is provided with a transverse air pipe, and the transverse air pipe is provided with a plurality of vertical nozzles, the air outlet ends of the nozzles stretch into the lightening vertical hole of a vertical grid frame of a lower guide plate body of the outlet guide decking; the lower part of the transverse air pipe is fixed with a vertical air pipe, and the lower end of the vertical air pipe is fixed with a bending pipe, the bending pipe is connected with a corrugated pipe, the corrugated pipe is connected with a fixed pipe, and the fixed pipe is connected with a blower. The method and the device used for preventing the rolling scratch of the hot rolling stainless steel belt thoroughly stop the scratch of the lower surface of the band steel by the guide plate.
Description
Technical field
The present invention relates to a kind of method and device thereof that scratches when preventing the hot-rolled stainless steel belt steel rolling.
Background technology
In hot-strip factory, the heat of belt steel surface scratches especially to the scuffing of stainless steel surfaces, directly influences the quality of product.Main cause is; last finishing mill outlet bed board length is longer; as the bed board material of conventional design outlet guide GS30Mn5V steel alloy or 45 steel, 1Cr18Ni9Ti stainless steel; when the band steel passes through; band steel and bed board contact-making surface are the sassafras that directly rubs, and cause being with the steel lower surface to be scratched by bed board through regular meeting.The applicant lost 5000 ton 5,000 ten thousand yuan in hot continuous rolling occurrence of large-area scuffing once in 2003.Scratch when preventing the hot-rolled stainless steel belt steel rolling, existing method is: adopt nonmetal bed board to reduce the frictional force between stainless steel strip and the bed board, but nonmetal bed board heat resistance is poor, wearing and tearing big, consumption costs is big, the replacing time is long, influence the production time, stainless steel strip surface quality instability.
Summary of the invention
In order to overcome the above-mentioned deficiency of the existing method that scratches when preventing the hot-rolled stainless steel belt steel rolling, the invention provides a kind of stainless steel strip surface quality stable prevent the method that the hot-rolled stainless steel belt steel rolling scratches, a kind of device of realizing this method is provided simultaneously.r
Design of the present invention is nozzle and the pipeline that the bed board of the outlet guide of a finishing mill in the end is provided with down, when rolling, the compressed air that utilizes blower fan to produce will be with steel to blow afloat, be generally 30bar-50bar, forming " air cushion " suspends the band steel, the band steel separates with the wear-resisting bed board on guide plate surface, and air quantity can be by the frequency conversion fan adjustment, to adapt to the belt steel rolling to different-thickness." air cushion " purges the effect of de-scaling in addition to being with the steel lower surface in addition, improved strip surface quality.
Originally the technical characterictic that prevents the method for the rolling scuffing of hot-rolled stainless steel band is when rolling, row's nozzle that compressed air is provided with from the vertical hole of the loss of weight of the outlet guide bed board of last hot finisher blows out, air-flow by ejection forms air cushion being with steel to blow afloat suspension, the lower surface of band steel is separated with wear-resisting nonmetal bed board on being fixed on the outlet guide bed board, stop stainless steel strip and scratch.
The blower fan of the above-mentioned method that prevents the rolling scuffing of hot-rolled stainless steel band can be driven by following any mode: motor directly drives, and motor drives through speed changer, internal combustion engine drive.Compressed air is entered by nozzle by airduct, will be with steel to blow afloat by the nozzle ejection again.
When originally preventing the method employing Motor Drive of the rolling scuffing of hot-rolled stainless steel band, available RHVC is regulated the velocity of rotation of motor, band steel according to different-thickness provides different air quantity when rolling, the band steel is thick more just heavy more, and needed air quantity is just big more.
When originally preventing the method employing Motor Drive of the rolling scuffing of hot-rolled stainless steel band, also can be by the velocity of rotation of the function switch board control motor that RHVC is being set identical with the TMD-1D switch board, motor is with 10% speed low-speed running, saves energy when not with steel.When last hot finisher is stung steel, the load relay of this milling train is connected ON, give rate signal of converter plant by controller V3000 (Japanese TMEIC company provide), rate signal goes out required speed according to calculation of parameter such as the thickness of institute's rolled plate, width, thereby 1-2 within second speed rise to 50-100% the band steel suspended, avoid drawing with the direct wiping of steel and bed board.
Originally prevent also available travel switch and the velocity of rotation of switch control motor and the connection and the cut-out of electric current of method of the rolling scuffing of hot-rolled stainless steel band, when band steel toe portion arrives bottom roll, touch the roller of travel switch, the long open contact closure of travel switch, coil electricity as the A.C. contactor of switch, the length of A.C. contactor is opened the closing of contact, the motor energising, blower fan work, the band steel has been rolled up several circles at coiling machine and has been opened, the band steel just separates with the roller of travel switch, and switch just disconnects, and motor outage blower fan quits work.
But the signal of travel switch is input function the switch board that RHVC be set identical with the TMD-1D switch board also, by the break-make of this switch board control motor current.
Originally prevent the motor energising and outage of the method for the rolling scuffing of hot-rolled stainless steel band, can control by photoelectric control components.The luminous receiving tube of photoelectric tube receives, the switch board that RHVC is being set that the signal input function is identical with the TMD-1D switch board, when being with steel toe portion from roll arrival roller roller, blocked the light that photoelectric tube sends, receiving tube does not receive the light that sends from photoelectric tube, the signal that will be in the light input switch board, switch board be to the motor output current, the Motor Drive compressor operating.
Originally the method that prevents the rolling scuffing of hot-rolled stainless steel band also can be by the velocity of rotation of the adjusting of the speed changer between motor and blower fan blower fan.
Originally the device that prevents the rolling scuffing of hot-rolled stainless steel band comprises the outlet guide crossbeam of the outlet guide framework that is installed in last hot finisher, at the outlet guide crossbeam beam wind pipe is installed, at the beam wind pipe nozzle of plurality of vertical is installed, the upper end of nozzle is in the vertical hole of loss of weight of vertical grid of the outlet air end following guide and guard plate body that reaches the outlet guide bed board.Perpendicular airduct is being fixed in the bottom of beam wind pipe, and bend pipe is being fixed in the lower end of perpendicular airduct, and bend pipe is connecting bellows, and nozzle, beam wind pipe, perpendicular airduct and bend pipe can moving with the outlet guide bed board.Bellows is connecting fixedly airduct, and fixedly airduct is connecting blower fan.
Configurable following any power set of the blower fan of the above-mentioned device that prevents the rolling scuffing of hot-rolled stainless steel band, motor, motor and speed changer, internal combustion engine and speed changer.
Originally prevent the device configuration motor of the rolling scuffing of hot-rolled stainless steel band, motor and blower fan are installed together, and motor is connecting RHVC by electric wire.
Originally prevent the device configuration motor of the rolling scuffing of hot-rolled stainless steel band, effect is preferably the function switch board that RHVC is being set identical with the TMD-1D switch board is set, control the velocity of rotation of motor and the break-make of electric current by this switch board.
Originally prevent the device configuration motor of the rolling scuffing of hot-rolled stainless steel band, the one side that can be positioned at the band steel under the band steel is provided with travel switch, the roller of travel switch generally is not more than 40mm apart from band steel distance on one side, and travel switch is installed in down near the bottom roll of vertical grid of guide and guard plate body or framework.The electric wire of motor connects A.C. contactor, and the coil of A.C. contactor is connected with travel switch.But the end that operating mechanism oscillating rod type, Direct Action Type or the universal type of travel switch, operating mechanism contact with the strip is provided with roller or high-abrasive material.Travel switch also can be connected by the switch board that RHVC is being set identical with the TMD-1D switch board with function, by the break-make of this switch board control motor current.
Originally prevent the device motor of the rolling scuffing of hot-rolled stainless steel band, motor energising and the photoelectric control components that cuts off the power supply can be set, above between two roller rollers, photoelectric tube is set, below two roller rollers, receiving tube is set, the switch board that RHVC is being set that receiving tube is identical with the TMD-1D switch board with function is connected, by the break-make of this switch board control motor current.
Originally prevent the method and the device thereof of the rolling scuffing of hot-rolled stainless steel band, in the operation of rolling, the compressed air that utilizes blower fan to produce will be with steel to blow afloat, forming " air cushion " suspends the band steel, the band steel is separated with the wear-resisting bed board on guide plate surface, thoroughly stop guide plate band steel lower surface is scratched,, solved the stainless steel lower surface and scratched problem especially to the influence of stainless steel lower surface." air cushion " purges the effect of de-scaling in addition to being with the steel lower surface in addition, improved strip surface quality.Originally the method and the device thereof that prevent the rolling scuffing of hot-rolled stainless steel band are adapted to the steel plate that thickness is not more than 10mm.Calculate with the steel rolling mill that produces 1000000 tons of stainless steel bands per year, scratching and accounting for 0.2% is 2000 tons, then
1, the quality and benifit that reduce to scratch: ten thousand yuan of 2000t * 0.5 ten thousand yuan/t=1000
2, reduce the benefit of replacing time: ten thousand yuan of 2h/ time * 2 times/month * December * 40,000 yuan/h=192
3, reduce the benefit of graphite guide plate: the benefit in 66 pieces/time * 4 times/month * December * 200 yuan/piece=63.36 ten thousand yuan every year: 12,550,000 yuan.
Description of drawings
Fig. 1 is the schematic diagram of the method embodiment one that scratches when originally preventing the hot-rolled stainless steel belt steel rolling.
Fig. 2 is the mutual alignment schematic diagram of nozzle and guide and guard guide plate.
Fig. 3 is the installation vertical view that originally prevents the embodiment one of the rolling scuffing device of hot-rolled stainless steel band.
Fig. 4 is along the cutaway view of A-A line among Fig. 3.
Fig. 5 is the vertical view of installing after the hot-rolling mill that prevents the rolling scuffing device of hot-rolled stainless steel band embodiment one takes down top guide.
Fig. 6 is the partial sectional view along B-B line among Fig. 4.
Fig. 7 is the partial sectional view along C-C line among Fig. 6.
Fig. 8 is the schematic diagram of the method embodiment two that scratches when originally preventing the hot-rolled stainless steel belt steel rolling.
Fig. 9 is the installation diagram of travel switch, also is the enlarged drawing in Fig. 6 upper left corner.
Figure 10 is the schematic diagram of the method embodiment three that scratches when originally preventing the hot-rolled stainless steel belt steel rolling.
Figure 11 is the installation reference diagram that scratches device embodiment three when originally preventing the hot-rolled stainless steel belt steel rolling.
Figure 12 is the schematic diagram of the method embodiment four that scratches when originally preventing the hot-rolled stainless steel belt steel rolling.
Figure 13 is the installation reference diagram that scratches device embodiment five when originally preventing the hot-rolled stainless steel belt steel rolling.
Omitted among the above-mentioned figure and the irrelevant parts of invention; Spare and accessory parts sequence number among the above-mentioned figure is: 1, foreplate inlet 2, recirculated cooling water road 3, topping roll 4, outlet guide bed board 5, nonmetal bed board 6, air-flow 7, nozzle 8, beam wind pipe 9, band steel 10, turnover panel 11, roller roller 12, band steel toe portion 13, roller roller 14, switch 15, TMD-1D switch board 16, motor 17, air blast 18, fixedly airduct 19, ripple airduct 20, bend pipe 21, perpendicular airduct 22, bottom roll 23, the mouth of a river 24, top guide 25, rotating shaft 26, guide and guard cylinder 27, outlet guide body 28, framework 29, nonmetal bed board 30, outlet guide framework 31, outlet guide framework side plate 32, outlet guide slide plate 33, outlet guide crossbeam 34, the horizontal riser 35 of framework, hydraulic cylinder axis pin base 36, nonmetal bed board 37, Spray-nozzle for removing dust 38, the vertical hole 39 of loss of weight, the vertical grid 40 of following guide and guard plate body, travel switch 41, roller 42, speed changer 43, RHVC 44, photoelectric tube 45, receiving tube 46, internal combustion engine
The specific embodiment
Originally prevent the method for the rolling scuffing of hot-rolled stainless steel band and the specific embodiment of device thereof below in conjunction with embodiment and description of drawings thereof, but prevent that originally the method for the rolling scuffing of hot-rolled stainless steel band and the specific embodiment of device thereof are not limited to following embodiment.
Prevent the method embodiment one of the rolling scuffing of hot-rolled stainless steel band
Originally the method embodiment schematic diagram that prevents the rolling scuffing of hot-rolled stainless steel band is seen Fig. 1 and Fig. 2, major technique feature of the present invention is when rolling, compressed air is blown out from row's nozzle 7 that the vertical hole 38 of the loss of weight of the outlet guide bed board 4 of last hot finisher is provided with, referring to Fig. 5 and Fig. 6, form air cushion by air-flow 6 band steel 9 is blown afloat suspension, the lower surface of band steel 9 is separated with wear-resisting nonmetal bed board 5 on being fixed on outlet guide bed board 4, stop stainless steel strip 9 and scratch.Compressed-air actuated air quantity is provided by the air blast 17 that motor 16 drives.Compressed air by fixing airduct 18, bellows 18, the perpendicular airduct 21 and the beam wind pipe 8 that can move with outlet guide bed board 4, will be with steel 8 to blow afloat by nozzle 7 ejections successively at last.
The motor 16 of present embodiment is a threephase asynchronous, motor 16 is connected with TMD-1D switch board 15, in TMD-1D switch board 15, RHVC is being set, can when rolling, provide different air quantity according to the band steel 8 of different-thickness like this, the band steel is thick more just heavy more, and needed air quantity is just big more.Idiographic flow is: motor 16 is with 10% speed low-speed running when not with steel.When last hot finisher is stung steel, the load relay of this milling train is connected ON, give rate signal of converter plant by controller V3000 (Japanese TMEIC company provide), rate signal goes out required speed according to calculation of parameter such as the thickness of institute's rolled plate, width, thereby 1-2 within second speed rise to the purpose that 50-100% reaches control band steel " suspension ", avoid drawing with the direct wiping of steel and bed board.Improve the quality of belt steel surface.
Prevent the rolling scuffing device of hot-rolled stainless steel band embodiment one
Present embodiment is the device that realization prevents the method embodiment one of the rolling scuffing of hot-rolled stainless steel band, its structure is seen Fig. 3, Fig. 4 and Fig. 5, it comprises the outlet guide crossbeam 33 of the outlet guide framework 30 that is installed in last hot finisher, at outlet guide crossbeam 33 beam wind pipe 8 is installed, at beam wind pipe 8 six vertical nozzles 7 are installed, the upper end of nozzle 7 is in the vertical hole 38 of loss of weight of the outlet air end vertical grid 39 of following guide and guard plate body that reaches outlet guide bed board 4, referring to Fig. 6 and Fig. 7.Two perpendicular airducts 21 are being fixed in the bottom of beam wind pipe 8, and a bend pipe 20 is being fixed in the lower end of every perpendicular airduct, and each bend pipe 20 is connecting bellows 19, and nozzle 7, beam wind pipe 8, perpendicular airduct 21 and bend pipe 20 can moving with outlet guide bed board 4.Two bellowss 19 are connecting fixedly airduct 18, and fixedly the right-hand member of airduct 18 is connecting air blast 17, and air blast 17 is installed together with motor 16.Motor 16 is connecting TMD-1D switch board 15 by electric wire, in TMD-1D switch board 15 RHVC is being set.
Prevent the method embodiment two of the rolling scuffing of hot-rolled stainless steel band
Present embodiment is that the control mode of motor 16 and the rotating speed of air blast 17 are controlled different with the difference of method embodiment one, motor 16 energisings of present embodiment are controlled by travel switch 40 and switch 14 with outage, see Fig. 8, travel switch 40 is positioned at one side of band steel 8 for 8 times at the band steel, roller 41 distance band steel 8 distance on one side of travel switch 40 is not more than 40mm, and travel switch 40 is installed in down the vertical grid 39 of guide and guard plate body.When band steel toe portion 12 arrives bottom roll 22, touch the roller 41 of travel switch 40, the long open contact closure of travel switch 40, coil electricity as the A.C. contactor of switch 14, the length of A.C. contactor is opened the closing of contact, motor 16 energisings, motor 16 drives speed changer 42 work, 17 work of speed changer 42 blower, the rotating speed of air blast 17 is by speed changer 42 controls, and band steel 8 has been rolled up several circles at coiling machine and opened, and band steel 8 just separates with the roller 41 of travel switch 40, switch 15 just disconnects, and motor 16 outage compressors 17 quit work.
Prevent the rolling scuffing device of hot-rolled stainless steel band embodiment two
Present embodiment and prevent that the difference of the device embodiment one of the rolling scuffing of hot-rolled stainless steel band from being between motor 16 and air blast 17 speed changer 42 to be set, the output shaft of motor 16 connects with the power shaft of speed changer 42, the output shaft of speed changer 42 connects with the power shaft of air blast 17, and the travel switch 40 that motor 16 energisings is set and cuts off the power supply, see Fig. 8 and Fig. 9, travel switch 40 is positioned at one side of band steel 8 for 8 times at the band steel, roller 41 distance band steel 8 distance on one side of travel switch 40 is not more than 40mm, and travel switch 40 is installed in down the vertical grid 39 of guide and guard plate body.Travel switch 40 also can be installed near framework 28 bottom rolls 22.But operating mechanism oscillating rod type, Direct Action Type or the universal type of the travel switch 40 of method embodiment two and device embodiment two, the end that operating mechanism contacts with the strip is provided with roller or high-abrasive material.
Prevent the method embodiment three of the rolling scuffing of hot-rolled stainless steel band
Present embodiment and the difference of method embodiment one are that the control mode of motor 16 rotating speeds is different with the break-make control mode, see Figure 10, the rotating speed of the motor 16 of present embodiment is by variable-frequency governor 43 controls, thick band steel is transferred the rotating speed of motor 16 big, and thin band steel is turned the rotating speed of motor 16 down.The break-make of motor 16 power supplys can be controlled by switch.But Artificial Control can be controlled automatically, connects power supply during motor 16 work, because the intermittent time of motor 16 is shorter, cuts off the power supply of motor 16 when hot finisher stops steel rolling.
Prevent the rolling scuffing device of hot-rolled stainless steel band embodiment three
Present embodiment is that electronic motor-driven 16 control device is different with the difference of device embodiment one, and the rotating speed of the motor 16 of present embodiment is by variable-frequency governor 43 controls, and the break-make of motor 16 power supplys can be controlled by switch, sees Figure 11.
Prevent the method embodiment four of the rolling scuffing of hot-rolled stainless steel band
Present embodiment and the difference of embodiment one are that the control mode of motor 16 is different, motor 16 energisings of present embodiment and the photoelectric control components of outage, see Figure 12, above roller roller 11 and roller roller 13, photoelectric tube 44 is set, below roller roller 11 and roller roller 13 receiving tube 45 is set, photoelectric tube 44 and receiving tube 45 are installed between roller roller 11 and the roller roller 13.Photoelectric tube 44 luminous receiving tubes 45 receive, signal is imported TMD-1D switch board 15, when band steel toe portion 12 when roll arrives roller roller 11 and roller roller 13, blocked the light that photoelectric tube 44 sends, receiving tube 45 does not receive the light that sends from photoelectric tube 44, the signal that will be in the light is failed TMD-1D switch board 15, and TMD-1D switch board 15 is to motor 16 output currents, and motor 16 drive compression machines 17 are worked.
Prevent the rolling scuffing device of hot-rolled stainless steel band embodiment four
Present embodiment is that motor 16 energisings and the photoelectric control components that cuts off the power supply are set on the basis of the device embodiment one that prevents the rolling scuffing of hot-rolled stainless steel band, see Figure 12, above roller roller 11 and roller roller 13, photoelectric tube 44 is set, below roller roller 11 and roller roller 13 receiving tube 45 is set, receiving tube 45 is connected with TMD-1D switch board 15.
Prevent the method embodiment five of the rolling scuffing of hot-rolled stainless steel band
Present embodiment and the difference of method embodiment two are that the type of drive and the Starting mode of speed changer 42 is different, and present embodiment is by internal combustion engine 46 blower 17.The rotation of air blast 17 is also controlled by speed changer 42 with shutdown, sees Figure 13.
Prevent the rolling scuffing device of hot-rolled stainless steel band embodiment five
Present embodiment and the difference that prevents the device embodiment two of the rolling scuffing of hot-rolled stainless steel band are that its power set are internal combustion engines 46, and the output shaft of internal combustion engine 46 connects with the power shaft of speed changer 42, sees Figure 13.
In the foregoing description
Air blast model 4-79NO.4.5 Beijing-Tianjin blower fan factory makes the maximum 50bar of blast
The maximum 1300m of air quantity
3The also available compressor of/h replaces
The design of hot finisher Germany SMSD company, 2250 hot-rolled strip production lines, the cooperation of domestic second Heavy Machinery Plant is made
The TMD-1D switch board 15 Japanese TMEIC model TMD-1D of company.
Claims (10)
1. method that prevents the rolling scuffing of hot-rolled stainless steel band, this method is when rolling, row's nozzle that compressed air is provided with from the vertical hole of the loss of weight of the outlet guide bed board of last hot finisher blows out, forms air cushion by the air-flow of ejection the band steel is blown afloat suspension, the lower surface of being with steel is separated with wear-resisting nonmetal bed board on being fixed on the outlet guide bed board.
2. the method that prevents the rolling scuffing of hot-rolled stainless steel band according to claim 1 is characterized in that: blower fan is by Motor Drive, and the velocity of rotation of regulating motor by RHVC provides different air quantity according to the band steel of different-thickness when rolling.
3. the method that prevents the rolling scuffing of hot-rolled stainless steel band according to claim 1, it is characterized in that: blower fan is by Motor Drive, by the velocity of rotation of function the switch board control motor that RHVC be set identical with the TMD-1D switch board, motor is with 10% speed low-speed running when not with steel; When last hot finisher is stung steel, the load relay of this milling train is connected ON, give rate signal of converter plant by controller V3000 (Japanese TMEIC company provide), rate signal goes out required speed according to calculation of parameter such as the thickness of institute's rolled plate, width, thus 1-2 within second speed rise to 50-100% the band steel suspended.
4. want the 3 described methods that prevent the rolling scuffing of hot-rolled stainless steel band according to right, it is characterized in that: with the travel switch switch board that RHVC is being set that the signal input function is identical with the TMD-1D switch board, the break-make of interior this switch board control motor current.
5. want the 3 described methods that prevent the rolling scuffing of hot-rolled stainless steel band according to right, it is characterized in that: by the break-make of photoelectric control components control motor current, the luminous receiving tube of photoelectric tube receives, the switch board that RHVC is being set that the signal input function is identical with the TMD-1D switch board, when being with steel toe portion from roll arrival roller roller, blocked the light that photoelectric tube sends, receiving tube does not receive the light that sends from photoelectric tube, the signal input switch board that will be in the light, switch board is to the motor output current, the Motor Drive compressor operating.
6. device that prevents the rolling scuffing of hot-rolled stainless steel band, it comprises the outlet guide crossbeam of the outlet guide framework that is installed in last hot finisher, at the outlet guide crossbeam beam wind pipe is installed, at the beam wind pipe nozzle of plurality of vertical is installed, the outlet air end of nozzle reaches in the vertical hole of loss of weight of vertical grid of following guide and guard plate body of outlet guide bed board; Perpendicular airduct is being fixed in the bottom of beam wind pipe, and bend pipe is being fixed in the lower end of perpendicular airduct, and bend pipe is connecting bellows, and nozzle, beam wind pipe, perpendicular airduct and bend pipe can moving with the outlet guide bed board; Bellows is connecting fixedly airduct, and fixedly airduct is connecting blower fan.
7. the device that prevents the rolling scuffing of hot-rolled stainless steel band according to claim 6 is characterized in that: it is disposing motor and RHVC, and motor and blower fan are installed together, and motor is connected with RHVC by electric wire.
8. the device that prevents the rolling scuffing of hot-rolled stainless steel band according to claim 6 is characterized in that: it is disposing motor the switch board that RHVC be set identical with the TMD-1D switch board with function, and motor is connected with this switch board by electric wire.
9. the device that prevents the rolling scuffing of hot-rolled stainless steel band according to claim 8, it is characterized in that: one side under the band steel, be positioned at the travel switch that is provided with of band steel, the roller of travel switch is not more than 40mm apart from band steel distance on one side, and travel switch is installed in down near the bottom roll of vertical grid of guide and guard plate body or framework; The switch board that RHVC is being set that travel switch is also identical with the TMD-1D switch board with function is connected, by the break-make of this switch board control motor current.
10. the device that prevents the rolling scuffing of hot-rolled stainless steel band according to claim 8, it is characterized in that: above between two roller rollers, photoelectric tube is set, below two roller rollers, receiving tube is set, the switch board that RHVC is being set that receiving tube is identical with the TMD-1D switch board with function is connected, by the break-make of this switch board control motor current.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101856673A CN101185944B (en) | 2007-12-27 | 2007-12-27 | Method for preventing hot rolling stainless steel band from rolling cuts and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101856673A CN101185944B (en) | 2007-12-27 | 2007-12-27 | Method for preventing hot rolling stainless steel band from rolling cuts and device thereof |
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| CN101185944A true CN101185944A (en) | 2008-05-28 |
| CN101185944B CN101185944B (en) | 2010-06-23 |
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| CN2366195Y (en) * | 1997-07-29 | 2000-03-01 | 宝山钢铁(集团)公司 | Guiding and positioning arrangement for steel strip |
| DE19804184A1 (en) * | 1998-02-03 | 1999-08-05 | Kramer Carl | Device for floating guidance of tapes |
| CN200963639Y (en) * | 2006-10-26 | 2007-10-24 | 山西太钢不锈钢股份有限公司 | Hot tandem rolling finishing mill transition plate |
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| CN108655178B (en) * | 2017-03-31 | 2019-11-22 | 宝山钢铁股份有限公司 | The anti-steel scrap accurate control method of hot rolling low temperature coiling band steel surface cleaning device |
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| CN112808779A (en) * | 2020-12-30 | 2021-05-18 | 东北轻合金有限责任公司 | Device and method for preventing lower surface of aluminum plate of hot roughing mill from being scratched |
| CN112974534A (en) * | 2021-02-22 | 2021-06-18 | 莱芜钢铁集团银山型钢有限公司 | Tension control method and system for hot rolled strip steel coiler mandrel to strip steel head |
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