CN107262538B - A kind of derusting descaling process of steel band - Google Patents

A kind of derusting descaling process of steel band Download PDF

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Publication number
CN107262538B
CN107262538B CN201710558792.8A CN201710558792A CN107262538B CN 107262538 B CN107262538 B CN 107262538B CN 201710558792 A CN201710558792 A CN 201710558792A CN 107262538 B CN107262538 B CN 107262538B
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China
Prior art keywords
steel band
washing
wheel
peeling
peening
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CN201710558792.8A
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CN107262538A (en
Inventor
吴海霞
张君义
张培杰
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Hebei Environmental Protection Technology Development Co Ltd
Xingtai Fuai Atomizer Co Ltd
Hebei University of Science and Technology
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Hebei Environmental Protection Technology Development Co Ltd
Xingtai Fuai Atomizer Co Ltd
Hebei University of Science and Technology
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Priority to CN201710558792.8A priority Critical patent/CN107262538B/en
Publication of CN107262538A publication Critical patent/CN107262538A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/08Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically

Abstract

The present invention relates to a kind of derusting descaling process of steel band comprising successively follows the steps below, uncoiling peels off, flattens, shot-peening, washing and winding;It is described to peel off including upper surface process and the lower surface process of peeling off of peeling off, described flatten uses multiple roll press, for the multiple roll press by steel band by the gap of roller setting up and down, the deformation of correcting plate, when shot-peening, uses high-pressure injection nozzle, the angle of high-pressure injection nozzle and steel band is 35-70 degree when shot-peening, washing include just washing and fine purifiation wash, nozzle when washing is fan nozzle, and present invention process water consumption is small, system stabilization reliable for operation, derusting scale removal effect are good.

Description

A kind of derusting descaling process of steel band
Technical field
The present invention relates to a kind of process of surface treatment of steel band, more specifically, it relates to a kind of derusting de-scaling of steel band Technique.
Background technique
Hot rolled strip needs the de-scaling that derusts before cold rolling.Current several optional techniques have: flow sand jet shot-peening, roller Ramming ball blast method and high pressure water ball blast method, that there are water consumptions is big for these types of method, and system fluctuation of service cannot have to steel band table Face carries out the defect of effective derusting de-scaling, so needing to research and develop, a kind of water consumption is small, and system stabilization reliable for operation, derust de-scaling The good technique of effect.
Summary of the invention
The object of the present invention is to provide a kind of water consumption is small, system stabilization reliable for operation, the good steel band of derusting scale removal effect Derusting descaling process.
To achieve the above object, the present invention include successively follow the steps below, uncoiling, peel off, flatten, shot-peening, washing and Winding.
Further, described to peel off including upper surface process and the lower surface process of peeling off of peeling off.
Further, described to peel off using peeling off to wheeled decorticator, described includes bent plate wheel and institute to wheeled decorticator The auxiliary wheel that bent plate wheel is oppositely arranged, the righting wheel being arranged in pairs are stated, the bent plate wheel is connected to motor, and the righting wheel is located at The two sides of the bent plate wheel and auxiliary wheel;1 or more is arranged to wheeled decorticator, steel band is sequentially passed through to wheeled decorticator, phase It is adjacent to the steel plate back-flexing in wheeled decorticator.Preferably, between upper surface process of peeling off and lower surface process of peeling off or It is provided with crowded skin process later.
Further, the crowded skin step is that steel band is passed through to the gap of two crowded roller wheels setting up and down, lower section It squeezes roller wheel to be connected to motor, by 0.01 ~ 0.1mm of steel plate compression, makes rusty scale compressive deformation, complete to squeeze skin.
Further, described flatten uses multiple roll press, and steel band is passed through roller setting up and down by the multiple roll press Gap, the deformation of correcting plate;
High-pressure injection nozzle is used when shot-peening, the angle of the high-pressure injection nozzle and steel band is 35-70 degree, sprays pressure For 25.0-50.0MPa, the high-pressure injection nozzle is connect with the high-pressure hydraulic pump that power is 150-300kw respectively with sand ball case, institute High-pressure hydraulic pump is stated to connect by the big water pump that power is 15-30kw with pond.
Further, washing includes just washing to wash with fine purifiation, and just washing and the fine purifiation, which are washed, passes through power as 10-20kw Small water pump supply water, the power be 10-20kw small water pump connect with pond;Nozzle when washing is fan nozzle.
Further, between washing and winding, it is additionally provided with sanding step.
Further, material side reflection unit is also provided in this technique, the device is by the reflecting plate structure that is arranged on bracket At the sand ball rebound for the steel plate that flies out when by shot-peening is returned, and is allowed to impact surface of steel plate border area, is effectively reinforced fringe region Derusting effect.
Further, the automatic detection that automatic adjustment charging rate is also provided in this technique, sprays pressure and amount of sand Device.
Good effect of the present invention is as follows:
(1) of the invention improves speed of production, reduces pressure when subsequent peen using peel off technique and equipment is pre-processed Power.
(2) when shot-peening, high-pressure injection nozzle is fan nozzle, sprays the mixture of sand ball and water by high-pressure injection nozzle Out, it is sprayed in stratiform, saves water the energy use efficiency and productive labor efficiency for improving equipment.
(3) angle of high-pressure injection nozzle and steel band is improved, the angle of high-pressure injection nozzle and steel band is 35-70 degree, The effect for improving derusting de-scaling, improves treatment effect.
(4) setting for squeezing skin process, further improves the quality of product;The setting for flattening technique, further improves The quality of product.
(5) it just washs nozzle when washing with fine purifiation and is all made of fan nozzle, effectively remove the remaining pellet of steel strip surface, rust Powder and the metal powder of other absorption, clean surface is provided for subsequent technique.
(6) between washing and winding, it is additionally provided with sanding step, by continuous abrasive band and steel band close contact, continuously not Disconnected ground polishes steel band, further increases derusting scale removal effect, meets zinc-plated smoothness requirements.
(7) during shot-peening, it is also provided with material side reflection unit, the sand ball for the steel plate that flies out when can be by shot-peening rebounds back Come, be allowed to impact steel strip surface border area, effectively reinforces the derusting effect of fringe region.
(8) present invention process has only used three water pumps, reduces the quantity of water pump, reduces a large amount of pipeline and pipe Part, to reduce equipment installation, operation, the workload and its expense of maintenance and replacement have been said the probability of equipment damage, have been improved System operation reliability.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention;
In attached drawing, 1 uncoiler, 2 righting wheels, 3 bent plate wheels, 4. auxiliary wheels, 5 crowded roller wheels, 7 high-pressure hydraulic pumps, 9 small water pumps, 10 winders, 11 sanders, 14 high-pressure injection nozzles, 15 multiple roll presses, 17 ponds, 18 plunger pumps.
Specific embodiment
It will make further narration in detail to the embodiment of the present invention below.
The present invention successively follows the steps below steel band, uncoiling, peel off, flatten, can be effective after shot-peening, washing and winding Derust de-scaling.
Firstly, steel band to be processed is carried out uncoiling by uncoiler 1, it is transmitted by feed roller, is then peeled off.
Described to peel off including upper surface process and the lower surface process of peeling off of peeling off, described peel off is shelled using to wheeled decorticator Shell, described includes bent plate wheel 3, the auxiliary wheel 4 being oppositely arranged with the bent plate wheel 3, the righting being arranged in pairs to wheeled decorticator Wheel 2, the bent plate wheel 3 is connected to motor, and the righting wheel 2 is located at the two sides of the bent plate wheel 3 and auxiliary wheel 4;To wheeled stripping Shell machine is arranged 1 or more, and steel band is sequentially passed through to wheeled decorticator, the adjacent steel plate back-flexing in wheeled decorticator. When steel band carries out upper surface process, steel band sequentially passes through righting wheel 2, bent plate wheel 3 and another righting wheel 2, in bent plate wheel, auxiliary Under the collective effect of wheel and righting wheel, steel band is uniformly bent, and the rusty scale on surface is extruded removing, to complete to peel off.Steel band is logical It crosses upper surface process and the rusty scale of the upper surface of steel band is squeezed into removing, after the process of upper surface, steel band carries out back-flexing, under The rusty scale on surface is extruded removing, to complete peeling off for lower surface.Wheeled decorticator can be set it is multiple, carry out it is repeatedly more It is secondary to peel off.
Crowded skin process can be set between upper surface process of peeling off and lower surface process of peeling off, or upper surface process of peeling off Crowded skin process has also can be set in lower surface process later with peeling off.The crowded skin process is that steel band is passed through setting up and down two The crowded roller wheel 5 in the gap of a crowded roller wheel 5, lower section is connected to motor, by adjusting the gap of two crowded roller wheels 5, by steel Plate compresses 0.01 ~ 0.1mm, makes rusty scale compressive deformation, completes to squeeze skin, carries out Compression and Expansion, go out and loosen remaining firecoat, into One step removes rusty scale.
Described flatten uses multiple roll press 15, and the multiple roll press 15 passes through steel band between roller setting up and down Gap corrects the deformation of steel band, makes the straight of one side of something, is conducive to derusting process.
Steel band after pressing carries out shot-peening, and when shot-peening uses high-pressure injection nozzle 14, it is preferable that the high-pressure injection nozzle 14 section is sector, by the sand ball high-speed projectile in sand ball case 6 to steel strip surface, understands rusty scale and dirt.The high pressure spray The angle for penetrating nozzle 14 and steel band is 35-70 degree, and injection pressure is 25.0-50.0MPa, the high-pressure injection nozzle 14 and sand ball Case 6 is connected with high-pressure hydraulic pump 7 respectively, the motor driven that the high-pressure hydraulic pump 7 is 150-300kw by power, and passes through flood Pump 16 is connect with pond 17.In use, the mixture of sand ball and water is sprayed by high-pressure injection nozzle 14, sprayed in stratiform, section Water is about used, improves the energy use efficiency and productive labor efficiency of equipment, high-pressure injection nozzle 14 and the angle of steel band are 35-70 degree is sprayed from the upper and lower surface of steel band, is preferably carried out to steel strip surface so as to change the mixture of sand ball and water Processing improves the effect of derusting de-scaling, improves treatment effect.Preferably, the steel plate that flies out is also provided with when can be by shot-peening Sand ball rebound material side reflection unit back, which is made of the reflecting plate being arranged on bracket, the reflecting plate setting The sand ball rebound of steel plate of flying out around steel band to be peened, when can be by shot-peening is returned, and is allowed to impact steel strip surface edge The derusting effect of fringe region is effectively reinforced in region.
It is washed after steel band after shot-peening, removes rusty scale and after dirt that steel strip surface is clean, the washing packet It includes just washing and fine purifiation to wash, just washing and the fine purifiation are washed to be supplied water by the small water pump 9 that power is 10-20kw, and the power is The small water pump 9 and power of 10-20kw is that the big water pump 16 of 15-60kw is connect with pond 17, and pond 17 is that power is 15-30kw Big water pump 16 and power be 10-20kw small water pump 9 supply water, if moisture is respectively used to shot-peening and cleaning at main line later, institute The power for stating small water pump 9 is 10-20kw, is done homework in driving and parking, and the power of the big water pump 16 is 15-30kw, Working water is turned supply at runtime.
It can guarantee the operational reliability of system in this way.Nozzle uses fan nozzle when washing, improves cleaning effect.Just Nozzle when washing and fine purifiation are washed is all made of fan nozzle, effectively removes the remaining pellet of steel strip surface, become rusty powder and other absorption Metal powder, clean surface is provided for subsequent technique.
Preferably, between washing and winding, it is additionally provided with sanding step, sanding is abrasive belt process for sanding, passes through sand Ray machine 11 is completed, and continuous abrasive band and steel band close contact continuously polish steel band, further increases derusting de-scaling effect Fruit meets zinc-plated smoothness requirements.
It is completed when winding by winder 10.
In order to improve the detection level of entire technique, in the present invention, be also provided with automatic detection device, by frequency converter from It is dynamic to adjust charging rate, injection pressure is adjusted by frequency converter and adjust valve regulation amount of sand.Pass through the transmission in transmission steel band It takes, installation speed sensor, the velocity sensor is connect with PCL controller, and the PCL controller and control conveyer belt pass Dynamic motor connection, it is possible thereby to realize automatic adjustment charging rate.It is provided with pressure sensor in high-pressure injection nozzle 14, The pressure sensor is connect with PCL controller, and the frequency converter connection of the PCL controller and motor is achieved in jet pressure The automatic adjustment of power.
Present invention process production line be 400mm, can between high-pressure injection nozzle 14 and high-pressure hydraulic pump 7 adapted 100- The plunger pump 18 of 200kw, water flow is in 10-20 cubic metres per hour range, and pressure is adjustable within the scope of 30-50MPa, finally By present invention process, the surface for the phosphorus that do not become rusty is produced, and surface roughness is not more than 8 microns, brightness uniformity, edge removes Rust is good.Power consumption lowers 20-50% than original technology, and equipment investment is not higher than former technology, and treated, and steel strip surface is bright and clean For degree less than 5 microns, surface micro convex-concave diameter dimension is about 0.04-0.07mm, is uniformly distributed, hardness close to original hardness, These are better than original technology.
To sum up, (1) of the invention improves speed of production, reduces subsequent peen using peel off technique and equipment is pre-processed When pressure.
(2) when shot-peening, high-pressure injection nozzle 14 is fan nozzle, and the mixture of sand ball and water is made to pass through high-pressure injection nozzle 14 spray, and spray in stratiform, save water the energy use efficiency and productive labor efficiency for improving equipment
(3) angle of high-pressure injection nozzle 14 Yu steel band is improved, high-pressure injection nozzle 14 and the angle of steel band are 35-70 Degree improves the effect of derusting de-scaling, improves treatment effect.
(4) setting for squeezing skin process, further improves the quality of product;The setting for flattening technique, further improves The quality of product.
(5) it just washs nozzle when washing with fine purifiation and is all made of fan nozzle, effectively remove the remaining pellet of steel strip surface, rust Powder and the metal powder of other absorption, clean surface is provided for subsequent technique.
(6) between washing and winding, it is additionally provided with sanding step, by continuous abrasive band and steel band close contact, continuously not Disconnected ground polishes steel band, further increases derusting scale removal effect, meets zinc-plated smoothness requirements.
(7) during shot-peening, it is also provided with material side reflection unit, the sand ball for the steel plate that flies out when can be by shot-peening rebounds back Come, be allowed to impact steel strip surface border area, effectively reinforces the derusting effect of fringe region.
(8) present invention process has only used three water pumps, reduces the quantity of water pump, reduces a large amount of pipeline and pipe Part, to reduce equipment installation, operation, the workload and its expense of maintenance and replacement have been said the probability of equipment damage, have been improved System operation reliability.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments in the case where not departing from the spirit or scope of the invention patent.Therefore, originally Invention is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein Consistent widest scope.

Claims (1)

1. a kind of derusting descaling process of steel band, it is characterised in that: it includes successively following the steps below, and uncoiling peels off, presses Flat, shot-peening, washing and winding;
It is described to peel off including upper surface process and the lower surface process of peeling off of peeling off;
Described to peel off using peeling off to wheeled decorticator, described includes bent plate wheel (3) and the bent plate wheel to wheeled decorticator (3) auxiliary wheel (4) being oppositely arranged, the righting wheel (2) being arranged in pairs, the bent plate wheel (3) are connected to motor, the righting wheel (2) it is located at the two sides of the bent plate wheel (3) and auxiliary wheel (4);1 or more is arranged to wheeled decorticator, steel band sequentially passes through pair Wheeled decorticator, the adjacent steel plate back-flexing in wheeled decorticator;
It is provided between upper surface process of peeling off and lower surface process of peeling off or later crowded skin process;
The crowded skin process is that steel band is passed through to the gap of two crowded roller wheels (5) setting up and down, the crowded roller wheel (5) of lower section It is connected to motor, by 0.01 ~ 0.1mm of steel plate compression, makes rusty scale compressive deformation, complete to squeeze skin;
Described flatten uses multiple roll press (15), and the multiple roll press (15) passes through steel band between roller setting up and down Gap, the deformation of correcting plate;
High-pressure injection nozzle (14) are used when shot-peening, the angle of the high-pressure injection nozzle (14) and steel band is 35-70 degree, injection Pressure is 25.0-50.0MPa, and the high-pressure injection nozzle (14) and sand ball case (6) are respectively the high pressure of 150-300kw with power Water pump (7) connection, the high-pressure hydraulic pump (7) are connect by the big water pump (16) that power is 15-30kw with pond (17);
Washing includes that first washing and fine purifiation are washed, and just washing and the fine purifiation, which are washed, to be supplied by the small water pump (9) that power is 10-20kw Water, the power are that the small water pump (9) of 10-20kw is connect with pond (17);Nozzle when washing is fan nozzle;
Between washing and winding, it is additionally provided with sanding step;
Be also provided in this technique can material side reflection unit in shot-peening by the rebound of the sand ball of the steel plate that flies out back, the device by The reflecting plate being arranged on bracket is constituted;
The automatic detection device for being also provided with automatic adjustment charging rate in this technique, spraying pressure and amount of sand.
CN201710558792.8A 2017-07-11 2017-07-11 A kind of derusting descaling process of steel band Active CN107262538B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111992589B (en) * 2019-05-27 2022-03-18 宝山钢铁股份有限公司 BMD production line speed control method based on strip steel surface brightness detection

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CN1261560A (en) * 1999-01-21 2000-08-02 阿姆科公司 Method for producing surface roughness improved cold rolled metal strip
CN101138837A (en) * 2007-08-23 2008-03-12 宋建民 Cold-rolled steel strip acid-free descaling technique and special device thereof
CN101633111A (en) * 2008-07-22 2010-01-27 王志强 Method and device for surface processing of steel belt
CN201783875U (en) * 2010-08-23 2011-04-06 天津思为机器设备有限公司 Sandblasting derusting device for inner walls of pipes
CN102601742A (en) * 2012-03-07 2012-07-25 湖州金冶电子材料股份有限公司 Steel strip descaling method
CN203863533U (en) * 2013-01-25 2014-10-08 新东工业株式会社 Shot blasting device

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Publication number Priority date Publication date Assignee Title
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1261560A (en) * 1999-01-21 2000-08-02 阿姆科公司 Method for producing surface roughness improved cold rolled metal strip
CN101138837A (en) * 2007-08-23 2008-03-12 宋建民 Cold-rolled steel strip acid-free descaling technique and special device thereof
CN101633111A (en) * 2008-07-22 2010-01-27 王志强 Method and device for surface processing of steel belt
CN201783875U (en) * 2010-08-23 2011-04-06 天津思为机器设备有限公司 Sandblasting derusting device for inner walls of pipes
CN102601742A (en) * 2012-03-07 2012-07-25 湖州金冶电子材料股份有限公司 Steel strip descaling method
CN203863533U (en) * 2013-01-25 2014-10-08 新东工业株式会社 Shot blasting device

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