CN104923523B - Atomization device of straightening machine for aluminum - Google Patents
Atomization device of straightening machine for aluminum Download PDFInfo
- Publication number
- CN104923523B CN104923523B CN201510272330.0A CN201510272330A CN104923523B CN 104923523 B CN104923523 B CN 104923523B CN 201510272330 A CN201510272330 A CN 201510272330A CN 104923523 B CN104923523 B CN 104923523B
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- Prior art keywords
- straightener
- aluminium strip
- aluminum
- foreign body
- plc
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
Abstract
The invention discloses an atomization device of a straightening machine for aluminum. The atomization device of the straightening machine for aluminum comprises a sweeping mechanism, an atomization mechanism and a control mechanism, wherein the sweeping mechanism is arranged at the position of a pinch roll at the front portion of the straightening machine; the atomization mechanism is arranged at the position of a pinch roll in the middle of the straightening machine; the control mechanism is arranged on the outer side of the straightening machine. The location and width of an abnormal point are analyzed rapidly according to the detection situation of a PLC; a camera is arranged at the upper portion and takes pictures for the abnormal point when an alarm is given, and the shape and location of the abnormal matter can be viewed by calling out and viewing the pictures later. The atomization device of the straightening machine for aluminum is simple in structure, easy and convenient to operate and worthy of application and popularization.
Description
Technical field:
The invention belongs to aluminum deep processing equipment technical field is and in particular to a kind of aluminum straightener atomising device.
Background technology:
Because aluminum has much excellent performance so that its application is more and more extensive, and the profound level excavation for aluminum
Research also gets more and more, sheet material, after numerous PROCESS FOR TREATMENT, applies bending stress by straightener to aluminium strip, in front and back
So that aluminium strip appropriateness extends in the presence of jockey pulley applies tensile stress to aluminium strip, improve template by expression in the eyes, eliminate aluminium strip
Shape wave, wooden dipper song, the defect such as camber, cancellation band residual stress of steel simultaneously, improve the mechanical performance with aluminum.Stretch bending-straightening machine
It is necessary to ensure that not affecting board surface quality while improving template.Because aluminium strip easily produces aluminium powder during stretch-bending straightening,
Plate face can be caused to scratch because of plate face attachment aluminium powder unavoidably in stretch-bending straightening；And because surface aluminium skimmings are more and part
Aluminum volume oil viscosity is higher, and surface adhesion has part foreign body, and after going out finished product aligning, pad hole in surface.Have a strong impact on product
The quality of product, if foreign body is attached on jockey pulley, can cause the damage of persistence, traditional mode is exactly to shut down to aluminium strip
Check or brush oil thereon, two ways the former had a strong impact on job schedule, the latter then extremely dangerous it is therefore desirable to a kind of
Easy and simple to handle and structure simple aluminum straightener atomising device, to ensure the quality of aluminium strip.
Content of the invention
It is an object of the invention to provide a kind of structure aluminum simple and easy and simple to handle straightener atomising device.
Realize the purpose of the present invention and be the technical scheme is that a kind of aluminum straightener atomising device, including scavenging machine
Structure, atomising mechanism and controlling organization, described cleaning agency is arranged at the pinch rolls of straightener front portion, and described atomising mechanism is arranged on
At pinch rolls in the middle part of straightener, described controlling organization is arranged on outside straightener.
Described cleaning agency includes air nozzle, jet seat, air jet pipe and air pump, and described air nozzle is arranged on by jet seat
On air jet pipe, described air jet pipe is connected with air pump, is respectively provided with air jet pipe with following above straightener aluminium strip.
Described atomising mechanism includes atomizer, oil spout seat, spray bar and oil pump, and described atomizer is arranged on by oil spout seat
On spray bar, described spray bar is connected with oil pump, is respectively provided with spray bar with following above straightener aluminium strip.
Described air jet pipe, spray bar are respectively provided with Infrared Detectorss and photographic head with aligning drive end unit.
Described jet seat and oil spout seat are automatic rotating seat.
At described air nozzle and atomizer, Venturi tube is set.
Described controlling organization is plc.
Described Infrared Detectorss are laterally arranged in order.
A kind of aluminum using method of straightener atomising device:
A. aluminium strip, in straightening process, is monitored to aluminium strip face by the Infrared Detectorss of setting on air jet pipe, if sending out
Reveal existing foreign body, then send alarm storage of taking pictures at plc, then determine the size of air quantity according to feedack；
B. at running to the Infrared Detectorss of atomising mechanism, if foreign body has been detected, plc sends alarm and takes pictures aluminium strip
Store and increase the distributive value of atomizer；
C., when aluminium strip runs to aligning drive end unit, detected again, if finding, difference in aluminium strip, and plc is immediately
Report to the police and taken pictures storage by photographic head；
D.plc is contrasted with anterior detection foreign body position to the data obtaining from aligning drive end unit Infrared Detectorss, if
Consistent then after running two maximum tension rollers week distance, difference still occurs, then reports to the police and upgrade and shut down lookup foreign body and go out
Existing position, if no, continue to run with；
If e. plc foreign body position is detected different, increase distributive value and run an oil injection mechanism to aligning drive end unit
Distance, if no difference, warning of taking pictures, if also occur difference, report to the police upgrade and shut down search foreign body occur position；
F. reopen straightener after detection finishes to proceed to align.
The present invention arranges jet mechanism and atomising mechanism, and the air nozzle pair by setting in jet mechanism on straightener
Aluminium strip is blown cleaning for the first time, and the top in aluminium strip and bottom are respectively provided with air jet pipe, can will be stained with glutinous aluminum on aluminium strip
The foreign bodies such as bits are blown away, and setting Infrared Detectorss can detect to aluminium strip on air jet pipe, and Infrared Detectorss in a row set
Put and each Infrared Detectors can be made to be responsible for lesser width scope, when monitoring information is fed back to plc by Infrared Detectorss, plc
Can determine that foreign body occurs in the horizontal position of aluminium strip so that plc being capable of basis according to the Infrared Detectorss detecting foreign body
The jet angle of the position adjustment air nozzle of foreign body, by foreign body from spraying it is ensured that the light of aluminium strip apart from aluminium strip sideline beeline
Clean and smooth；Then aluminium strip enters the detector of atomising mechanism, if detect foreign body, sending alarm and can increase oil spout
Amount, make foreign body be stained with stick prevent from being stained with aluminium strip stick cause on jockey pulley persistence injure；In aligning drive end unit, infrared spy is set
Surveying device and be capable of detecting whether that foreign body occurs, if foreign body occurs, comparing with the anterior position occurring, thus detecting whether
Foreign body for detecting at jet mechanism is done, if lateral attitude is deviateed, sends alarm by plc and increases distributive value, is come with this
Tensioning wheel is carried out, and is running the distance of maximum tension roller girth twice, if also detecting foreign body, hard stop；Enter
Row checks until cleaning out.
The present invention can not only remove in the atomising device that arranges with middle part of anterior setting jet mechanism of aluminum straightener
Foreign body, and aluminium strip can be lowered the temperature；Foreign body on jockey pulley can be purged by atomising mechanism, adopt simultaneously
The appearance of substandard products can be reduced with this device, reduce and shut down the time searching foreign body, realize just reporting to the police when foreign body occurs, in fortune
If row maximum tension roller girth twice apart from when occur again; hard stop, due to occur on aluminium strip difference position may
Do for the foreign body on some jockey pulley, as long as therefore running the distance of maximum tension roller girth, if existing different on jockey pulley
Thing then must occur in the length of maximum tension roller girth, now has plc to send alarm, and straightener continues the maximum that moves ahead
The length of jockey pulley girth, if not going wrong, shows that difference above is put as being stained with the foreign body sticking on jockey pulley, fault solution
Remove；If peculiar point has still been detected, can alarm upgrading hard stop.
The present invention can not carry out the problem of comprehensive monitoring for existing straightener to aluminium strip, clears up dress using two-stage
Put, aluminium sheet can be cleaned out also cleaning and descaling has been carried out to jockey pulley simultaneously it is ensured that straightener stable operation it is ensured that
The quality of product, it is to avoid the damage phenomenon of very long aluminium strip occurs, and avoids the potential safety hazard that artificial sprinkling oil brings, simultaneously
The width of the position that difference point occurs and difference point even if difference occurs, also can be quickly analyzed according to the situation of plc detection,
Photographic head can be set on top, just foreign matter point be taken pictures when reporting to the police, viewing, the shape of viewing foreign body can be recalled in the later stage
Shape and position, this apparatus structure is simple and easy and simple to handle, is worth application and promotes.
Brief description
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is side structure schematic diagram of the present invention；
Fig. 2 is cleaning agency schematic diagram of the present invention；
Fig. 3 is atomising mechanism structural representation of the present invention；
Fig. 4 is present invention aligning drive end unit infrared detector structure schematic diagram.
Specific embodiment
For the superiority of this device of further instruction, the performance of this device is carried out with the test of different pieces of information:
First group: produce the aluminium sheet of same size for identical straightener, be respectively adopted artificial oil spout with the present invention respectively
Tested, the experimental data of acquisition is as shown in the table:
| Title | Fuel consumption (ml/t) | Conforming product rate |
| Traditional Man oil spout | 500-600 | 91-93% |
| The present invention | 100-150 | 99.2-99.9% |
The present invention adopts identical straightener to produce the aluminium strip of same size, Traditional Man oil spout method, not only fuel consumption big and
And it is difficult to ensure that conforming product rate, cause the phenomenon that aluminium sheet is scrapped；And the present invention not only greatly reduces oil consumption, also make product
Qualification rate is promoted to intimate 100%, and achieves unattended it is seen that effect is fairly obvious.
Second group: for this device of identical, one is provided without jet mechanism, and one is provided without oil injection mechanism, same to luck
Row was tested respectively in its conforming product rate and the repair time broken down；
| Title | Conforming product rate | Repair time (h) |
| It is provided without jet mechanism | 93.5-95% | 6-8 |
| It is provided without oil injection mechanism | 94.9-96% | 4-6 |
| The present invention | 99.2-99.9% | 0.5-1 |
As can be seen from the above table in the present invention in nearly setting oil injection mechanism or jet mechanism, its conforming product rate obtaining
All not high, and the repair time is long, only could obtain conforming product rate height under both synergism and the repair time is short.
3rd group: for this device of identical, carry out contrast test test to using conventional Infrared Detectorss and this device；
| Title | Conforming product rate | Repair time (h) |
| The present invention | 99.2-99.9% | 0.5-1 |
| It is not provided with Infrared Detectorss | 97.5-98.8% | 3-3.5 |
Upper table is analyzed understand this device, even if all using Infrared Detectorss, still it uses conventional detection
Device, test surface is wide not to be enabled to position, nor realizes foreign matter point is carried out with the phenomenon of emphasis injection so that can not be quickly real
The now removing to foreign body, and the present invention solves this problem well.
4th group: for this device of identical, the using method of the using method and this device that are provided without this device is carried out
Contrast test is tested；
| Title | Conforming product rate | Repair time (h) |
| The present invention | 99.2-99.9% | 0.5-1 |
| It is provided without the using method of this device | 97.1-98.3% | 2-3 |
Upper table is analyzed understand with this device, more slightly lower than the present invention in its qualification rate of using method being provided without this device
Nearly 1%, its repair time has more than the present invention and at least has more more than one times the time, and without employing when going wrong
Once the method for the present invention may result in scrapping of entire volume aluminium strip, and the cost of an entire volume aluminum is more than 100,000 yuan, and goes out
Existing problem may be exactly that sliver goes wrong, and goes to search if stopped work, due to close structure and area is big, not easy-to-search
Appearance of ging wrong where.
As Figure 1-4: embodiment one: a kind of aluminum straightener atomising device, including cleaning agency 1, atomising mechanism 3 with
Controlling organization 13, described cleaning agency 1 is arranged at the pinch rolls 2 of straightener front portion, and described atomising mechanism 3 is arranged in straightener
At portion's pinch rolls 2, described controlling organization 13 is arranged on outside straightener.
Described cleaning agency includes air nozzle 9, jet seat 8, air jet pipe 6 and air pump 10, and described air nozzle 9 passes through jet seat
8 are arranged on air jet pipe 6, and described air jet pipe 6 is connected with air pump 10, and straightener aluminium strip 11 is respectively provided with air jet pipe with following above
6.
Described atomising mechanism includes atomizer 15, oil spout seat 14, spray bar 12 and oil pump 16, and described atomizer 15 passes through spray
Font 14 is arranged on spray bar 12, and described spray bar 12 is connected with oil pump 16, and straightener aluminium strip 11 is all provided with following above
Put spray bar 12.
Described air jet pipe 6, spray bar 12 are respectively provided with Infrared Detectorss 5 and photographic head 7 with aligning drive end unit 4.
Described jet seat 8 and oil spout seat 15 are automatic rotating seat.
At described air nozzle 9 and atomizer 14, Venturi tube is set.
Described controlling organization 13 is plc.
Described Infrared Detectorss 5 are transversely arranged successively.
Embodiment two: a kind of aluminum straightener atomising device, including cleaning agency 1, atomising mechanism 3 and controlling organization 13,
Described cleaning agency 1 is arranged at the pinch rolls 2 of straightener front portion, and described atomising mechanism 3 is arranged on pinch rolls 2 in the middle part of straightener
Place, described controlling organization 13 is arranged on outside straightener.
Described cleaning agency includes air nozzle 9, jet seat 8, air jet pipe 6 and air pump 10, and described air nozzle 9 passes through jet seat
8 are arranged on air jet pipe 6, and described air jet pipe 6 is connected with air pump 10, and straightener aluminium strip 11 is respectively provided with air jet pipe with following above
6.
Described atomising mechanism includes atomizer 15, oil spout seat 14, spray bar 12 and oil pump 16, and described atomizer 15 passes through spray
Font 14 is arranged on spray bar 12, and described spray bar 12 is connected with oil pump 16, and straightener aluminium strip 11 is all provided with following above
Put spray bar 12.
Described air jet pipe 6, spray bar 12 are respectively provided with Infrared Detectorss 5 and photographic head 7 with aligning drive end unit 4.
Described jet seat 8 and oil spout seat 15 are automatic rotating seat.
At described air nozzle 9 and atomizer 14, Venturi tube is set.
Described controlling organization 13 is plc.
A kind of aluminum using method of straightener atomising device:
A. aluminium strip, in straightening process, is monitored to aluminium strip face by the Infrared Detectorss of setting on air jet pipe, if sending out
Reveal existing foreign body, then send alarm storage of taking pictures at plc, then determine the size of air quantity according to feedack；
B. at running to the Infrared Detectorss of atomising mechanism, if foreign body has been detected, plc sends alarm and takes pictures aluminium strip
Store and increase the distributive value of atomizer；
C., when aluminium strip runs to aligning drive end unit, detected again, if finding, difference in aluminium strip, and plc is immediately
Report to the police and taken pictures storage by photographic head；
D.plc is contrasted with anterior detection foreign body position to the data obtaining from aligning drive end unit Infrared Detectorss, if
Consistent then after running two maximum tension rollers week distance, difference still occurs, then reports to the police and upgrade and shut down lookup foreign body and go out
Existing position, if no, continue to run with；
If e. plc foreign body position is detected different, increase distributive value and run an oil injection mechanism to aligning drive end unit
Distance, if no difference, warning of taking pictures, if also occur difference, report to the police upgrade and shut down search foreign body occur position；
F. reopen straightener after detection finishes to proceed to align.
The present invention arranges jet mechanism and atomising mechanism, and the air nozzle pair by setting in jet mechanism on straightener
Aluminium strip is blown cleaning for the first time, and the top in aluminium strip and bottom are respectively provided with air jet pipe, can will be stained with glutinous aluminum on aluminium strip
The foreign bodies such as bits are blown away, and setting Infrared Detectorss can detect to aluminium strip on air jet pipe, and Infrared Detectorss in a row set
Put and each Infrared Detectors can be made to be responsible for lesser width scope, when monitoring information is fed back to plc by Infrared Detectorss, plc
Can determine that foreign body occurs in the horizontal position of aluminium strip so that plc being capable of basis according to the Infrared Detectorss detecting foreign body
The jet angle of the position adjustment air nozzle of foreign body, by foreign body from spraying it is ensured that the light of aluminium strip apart from aluminium strip sideline beeline
Clean and smooth；Then aluminium strip enters the detector of atomising mechanism, if detect foreign body, sending alarm and can increase oil spout
Amount, make foreign body be stained with stick prevent from being stained with aluminium strip stick cause on jockey pulley persistence injure；In aligning drive end unit, infrared spy is set
Surveying device and be capable of detecting whether that foreign body occurs, if foreign body occurs, comparing with the anterior position occurring, thus detecting whether
Foreign body for detecting at jet mechanism is done, if lateral attitude is deviateed, sends alarm by plc and increases distributive value, is come with this
Tensioning wheel is carried out, and is running the distance of maximum tension roller girth twice, if also detecting foreign body, hard stop；Enter
Row checks until cleaning out.
The present invention can not only remove in the atomising device that arranges with middle part of anterior setting jet mechanism of aluminum straightener
Foreign body, and aluminium strip can be lowered the temperature；Foreign body on jockey pulley can be purged by atomising mechanism, adopt simultaneously
The appearance of substandard products can be reduced with this device, reduce and shut down the time searching foreign body, realize just reporting to the police when foreign body occurs, in fortune
If row maximum tension roller girth twice apart from when occur again; hard stop, due to occur on aluminium strip difference position may
Do for the foreign body on some jockey pulley, as long as therefore running the distance of maximum tension roller girth, if existing different on jockey pulley
Thing then must occur in the length of maximum tension roller girth, now has plc to send alarm, and straightener continues the maximum that moves ahead
The length of jockey pulley girth, if not going wrong, shows that difference above is put as being stained with the foreign body sticking on jockey pulley, fault solution
Remove；If peculiar point has still been detected, can alarm upgrading hard stop.
The present invention can not carry out the problem of comprehensive monitoring for existing straightener to aluminium strip, clears up dress using two-stage
Put, aluminium sheet can be cleaned out also cleaning and descaling has been carried out to jockey pulley simultaneously it is ensured that straightener stable operation it is ensured that
The quality of product, it is to avoid the damage phenomenon of very long aluminium strip occurs, and avoids the potential safety hazard that artificial sprinkling oil brings, simultaneously
The width of the position that difference point occurs and difference point even if difference occurs, also can be quickly analyzed according to the situation of plc detection,
Photographic head can be set on top, just foreign matter point be taken pictures when reporting to the police, viewing, the shape of viewing foreign body can be recalled in the later stage
Shape and position, this apparatus structure is simple and easy and simple to handle, is worth application and promotes.
Claims (6)
1. a kind of aluminum straightener atomising device, including cleaning agency, atomising mechanism and controlling organization it is characterised in that: described
Cleaning agency is arranged at the pinch rolls of straightener front portion, and described atomising mechanism is arranged at pinch rolls in the middle part of straightener, described control
Mechanism processed is arranged on outside straightener；Described cleaning agency includes air nozzle, jet seat, air jet pipe and air pump, described air nozzle
It is arranged on air jet pipe by jet seat, described air jet pipe is connected with air pump, above straightener aluminium strip, be respectively provided with spray with following
Trachea；Described atomising mechanism includes atomizer, oil spout seat, spray bar and oil pump, and described atomizer is arranged on spray by oil spout seat
On oil pipe, described spray bar is connected with oil pump, is respectively provided with spray bar with following above straightener aluminium strip；
This aluminum using method of straightener atomising device:
A, aluminium strip, in straightening process, are monitored to aluminium strip face by the Infrared Detectorss of setting on air jet pipe, if finding out
Existing foreign body, then send alarm storage of taking pictures, then determine the size of air quantity according to feedack at plc；
, at running to the Infrared Detectorss of atomising mechanism, if foreign body has been detected, plc sends alarm and takes pictures storage for b, aluminium strip
And increase the distributive value of atomizer；
C, when aluminium strip runs to aligning drive end unit, detected again, if finding, difference in aluminium strip, and plc reports to the police immediately
And taken pictures storage by photographic head；
D, plc are contrasted with anterior detection foreign body position to the data obtaining from aligning drive end unit Infrared Detectorss, if unanimously
Then after running all distance of two maximum tension rollers, difference still occurs, then report to the police to upgrade and shut down and search foreign body appearance
Position, if no, continue to run with；
If e plc foreign body position is detected different, increase distributive value and run an oil injection mechanism to align drive end unit away from
From, if no difference, warning of taking pictures, if difference also occurs, report to the police to upgrade and shut down and search the position that foreign body occurs；
F, reopen after detection finishes straightener proceed align.
2. aluminum according to claim 1 with straightener atomising device it is characterised in that: described air jet pipe, spray bar with rectify
Straight drive end unit is respectively provided with Infrared Detectorss and photographic head.
3. aluminum straightener atomising device according to claim 1 it is characterised in that: described jet seat and oil spout seat be from
Dynamic rotating seat.
4. aluminum straightener atomising device according to claim 1 it is characterised in that: set at described air nozzle and atomizer
Put Venturi tube.
5. aluminum straightener atomising device according to claim 1 it is characterised in that: described controlling organization be plc.
6. aluminum according to claim 2 with straightener atomising device it is characterised in that: described Infrared Detectorss are laterally successively
Arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510272330.0A CN104923523B (en) | 2015-05-26 | 2015-05-26 | Atomization device of straightening machine for aluminum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510272330.0A CN104923523B (en) | 2015-05-26 | 2015-05-26 | Atomization device of straightening machine for aluminum |
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| Publication Number | Publication Date |
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| CN104923523A CN104923523A (en) | 2015-09-23 |
| CN104923523B true CN104923523B (en) | 2017-01-18 |
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| CN201510272330.0A Active CN104923523B (en) | 2015-05-26 | 2015-05-26 | Atomization device of straightening machine for aluminum |
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| CN107855320A (en) * | 2017-11-29 | 2018-03-30 | 中冶南方工程技术有限公司 | One kind blows paper machine |
| CN115502147B (en) * | 2022-08-29 | 2023-10-13 | 祝桥金属材料启东有限公司 | Strip steel edge blowing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19918880A1 (en) * | 1999-04-26 | 2000-11-02 | Sms Demag Ag | Rolling process for a metal strip and the corresponding rolling arrangement |
| JP2002011516A (en) * | 2000-06-28 | 2002-01-15 | Sumitomo Metal Ind Ltd | Method and apparatus for cleaning metal strip |
| BE1018132A3 (en) * | 2008-05-14 | 2010-05-04 | Ct Rech Metallurgiques Asbl | METHOD FOR MEASURING THE CLEANLINESS OF STEEL BANDS. |
| CN202539128U (en) * | 2012-03-28 | 2012-11-21 | 武汉钢铁(集团)公司 | Heavy rail scale purging and collecting device |
| JP5803842B2 (en) * | 2012-08-16 | 2015-11-04 | 新日鐵住金株式会社 | Rolling equipment and rolling method |
| CN203409034U (en) * | 2013-08-22 | 2014-01-29 | 成都宝钢汽车钢材部件加工配送有限公司 | Aluminum plate straightening pre-cleaning device |
| CN204657024U (en) * | 2015-05-26 | 2015-09-23 | 河南省淅川县有色金属压延有限公司 | A kind of aluminium straightener atomising device |
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Effective date of registration: 20221020 Address after: No. 18, Yuanyuan Road, Shangji Town, Xichuan County, Nanyang City, Henan Province, 474450 Patentee after: Nanyang Shengfa New Materials Co.,Ltd. Address before: No. 406, Chengguanhe Road, Xichuan County, Nanyang City, Henan Province, 474450 Patentee before: HENAN PROVINCE XICHUAN COUNTY NONFERROUS METAL ROLLING CO.,LTD. |