CN119819731A - Device for improving strip-shaped defects on lower surface of aluminum alloy strip and working method - Google Patents
Device for improving strip-shaped defects on lower surface of aluminum alloy strip and working method Download PDFInfo
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- CN119819731A CN119819731A CN202510183448.XA CN202510183448A CN119819731A CN 119819731 A CN119819731 A CN 119819731A CN 202510183448 A CN202510183448 A CN 202510183448A CN 119819731 A CN119819731 A CN 119819731A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention relates to a device for improving strip defects on the lower surface of an aluminum alloy strip and a working method, wherein the device is sequentially provided with an inlet tension roller set, a first guide plate, a second guide plate and a working roller set from a feeding side to a discharging side, the second guide plate is fixedly arranged below the aluminum alloy strip, an oil nozzle for spraying rolling oil to the lower surface of the aluminum alloy strip is fixedly arranged below the second guide plate, the first guide plate is arranged on a lifting slide block and is positioned below the aluminum alloy strip, and an adjustable lifting roller for adjusting the strip tension force is fixedly arranged on the lifting slide block and above the aluminum alloy strip.
Description
Technical field:
the invention relates to a device for improving strip defects on the lower surface of an aluminum alloy strip and a working method thereof.
The background technology is as follows:
When the applicant produces an aluminum alloy (high-Mg aluminum alloy) with the Mg content of more than or equal to 4%, during the inspection of a finished product, the applicant finds that strip-shaped continuous or discontinuous color difference defects often appear in the middle area of the width of an aluminum strip, so that the use of customers is seriously influenced, the yield of the product is greatly influenced, and as the product is rolled to the thickness of 0.2mm from 3.5mm, a plurality of working procedures such as rolling, cleaning and annealing are required, and huge losses are caused to companies due to poor product quality.
The continuous or discontinuous color difference defects of the strip shape of the aluminum alloy strip are mainly concentrated on the lower surface of the aluminum alloy strip through repeated observation, and the reason is that in the rolling process of cold rolling, rolling oil sprayed by a rolling mill is easy to gather on the upper surface of the aluminum alloy strip, and because the upper surface of the aluminum alloy strip is rich in oil, aluminum powder is easy to take away in time on one hand, aluminum powder is prevented from adhering to a roller, and an oil film can be formed between the roller and the strip on the other hand, so that the separation between the strip and the roller is realized;
The lower surface of the aluminum alloy strip is sprayed with rolling oil (the front end of the inlet of the tensioning roller is provided with an oil spraying mechanism in the prior art), after passing through the tensioning roller, the residual rolling oil on the lower surface of the aluminum alloy strip is extruded, an oil film between the strip and the roller is thin during rolling, and the oil film is extremely easy to break due to high strength of the high Mg alloy, so that an isolating layer is not easy to form between the roller and the strip.
Although the area of the strip-shaped continuous or discontinuous color difference defect can be reduced to a certain extent by cleaning the surface of the aluminum alloy strip in the subsequent process, the cleaning process is increased, the cost and the production time are increased, and the problem cannot be fundamentally solved.
The method for solving the strip defects on the surface of the cold rolled coil, which is provided by the invention, improves the hardness of low-carbon steel materials and improves the compactness of material tissues, so that iron oxide sheets cannot be pressed on the surface of the hot rolled coil, reduces the slab heating tapping temperature and reduces the coiling temperature of the hot rolled coil, thereby solving the pressing-in of the iron oxide sheets of the hot rolled coil, preventing the strip defects from being generated when the hot rolled coil is further cold rolled, but cannot improve the strip defects on the lower surface of an aluminum alloy strip.
The invention comprises the following steps:
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a device and a working method for improving the strip-shaped defect on the lower surface of an aluminum alloy strip, which are reasonable in design and beneficial to improving the strip-shaped defect on the lower surface of the aluminum alloy strip.
The device for improving the strip-shaped defect on the lower surface of the aluminum alloy strip is characterized in that an inlet tensioning roller set, a first guide plate, a second guide plate and a working roller set are sequentially arranged from the feeding side to the discharging side of the aluminum alloy strip, the second guide plate is a guide plate fixedly arranged below the aluminum alloy strip, an oil nozzle for spraying rolling oil to the lower surface of the aluminum alloy strip is fixedly arranged below the second guide plate, the first guide plate is arranged on a liftable sliding block and is positioned below the aluminum alloy strip, an adjustable lifting roller for adjusting the tension of the strip is fixedly arranged on the liftable sliding block and above the aluminum alloy strip, the first guide plate is provided with two stations, when the first station is higher than or flush with the second guide plate, the adjustable lifting roller does not press the aluminum alloy strip, when the second station is used, the first guide plate is lower than the second guide plate, the first guide plate does not shield the oil nozzle to spray the rolling oil to the lower surface of the aluminum alloy strip, and when the adjustable lifting roller presses the aluminum alloy strip.
Preferably, a fixing frame is installed below the second guide plate, and the oil nozzle is installed on the fixing frame.
Preferably, an oil injection pipe parallel to the axis of the adjustable lifting roller is arranged on the fixing frame, a plurality of oil injection nozzles are arranged on the oil injection pipe, an oil inlet nozzle is fixedly arranged on the lower part of the oil injection pipe, and the oil inlet nozzle is connected with a main pipeline of rolling oil.
Preferably, the center of the oil nozzle is provided with a central oil hole communicated with the inner cavity of the oil nozzle, the free end surface of the oil nozzle is provided with a sinking groove communicated with the central oil hole, and the symmetrical central surface of the sinking groove forms an included angle of 10 degrees with the axial lead of the over-center oil hole and the first plane of the axial lead of the oil nozzle.
Preferably, the sinking groove is a rectangular sinking groove or a trapezoid sinking groove, and the width of the bottom of the sinking groove is equal to the diameter of the central oil hole.
Preferably, the first plane forms an included angle of 30-60 degrees with the vertical plane.
Preferably, the liftable sliding block is slidably connected to a vertical guide rail, the vertical guide rail is fixed to a frame, a hydraulic cylinder is fixedly connected to the frame, and the free end of a telescopic rod of the hydraulic cylinder is connected with the liftable sliding block.
Preferably, 7 oil spray nozzles are uniformly arranged in the upper middle part of the oil spray pipe at intervals of 60mm, and 4 oil spray nozzles are arranged at the outermost side of the 7 oil spray nozzles at intervals of 120 mm.
Preferably, the inlet tensioning roller set comprises two lower tensioning rollers below the aluminum alloy strip and an inlet upper tensioning roller above the aluminum alloy strip, wherein the inlet upper tensioning roller is positioned between the two lower tensioning rollers, and the working roller set at least comprises an upper working roller and a lower working roller which are oppositely rolled up and down.
The invention uses the working method of the device for improving the strip-shaped defects on the lower surface of the aluminum alloy strip,
When the aluminum alloy strip is in a non-rolling state, namely the first guide plate and the adjustable lifting roller are in a first station, the first guide plate is higher than or flush with the second guide plate, the adjustable lifting roller does not press the aluminum alloy strip, and the aluminum alloy strip sequentially passes through the inlet tension roller set, the first guide plate, the second guide plate and the working roller set from the feeding side, so that the introduction of the strip is realized;
When in a rolling state, namely the first guide plate and the adjustable lifting roller are in a second station, the first guide plate is lower than the second guide plate, the first guide plate does not shield the oil spray nozzle to spray rolling oil to the lower surface of the aluminum alloy strip, the adjustable lifting roller supports against the aluminum alloy strip, the rolling oil sprayed by the spray nozzle is sprayed to the lower surface of the aluminum alloy strip, the lower surface of the aluminum alloy strip is washed, the amount of residual aluminum powder on the surface of the aluminum alloy strip is reduced, the sprayed rolling oil is adhered to the lower surface of the aluminum alloy strip, and the aluminum alloy strip can be well lubricated and isolated when being rolled.
The invention improves the working principle of a device for improving strip defects on the lower surface of an aluminum alloy strip, the first guide plate and the adjustable lifting roller are positioned at a first station when the device is in a non-rolling state, the first guide plate is higher than or flush with the second guide plate, and the adjustable lifting roller does not press the aluminum alloy strip, so that the aluminum alloy strip can enter the working roller set after passing through the inlet tensioning roller set, the first guide plate and the second guide plate in sequence, the introduction of the strip is realized, the aluminum alloy strip is not blocked in the process, the aluminum alloy strip can be supported and guided by the first guide plate and the second guide plate, the end part of the aluminum alloy strip can be ensured to be accurately introduced into the working roller set, the aluminum alloy strip can be prevented from being accurately introduced into the working roller set, the first guide plate and the adjustable lifting roller are positioned at a second station when the device is in a rolling state, the first guide plate is lower than the second guide plate, and the first guide plate does not block the oil spray rolling oil to the lower surface of the aluminum alloy strip, the rolling oil sprayed by the oil spray to the lower surface of the aluminum alloy strip, the aluminum alloy strip can be washed, the lower surface of the aluminum alloy strip can be realized, the residual quantity of the aluminum alloy strip can be reduced, the sprayed rolling oil can be adhered to the lower surface of the aluminum alloy strip, the aluminum alloy strip can be well, and the aluminum alloy strip can be well pressed and well, and the lifting roller can be adjusted to roll the aluminum alloy strip, and can be well, and well-pressed down and well-pressed.
Description of the drawings:
FIG. 1 is a schematic construction diagram of the prior art;
FIG. 2 is a schematic view of the construction of a first station of the present invention;
FIG. 3 is a schematic view of the construction of a second station of the present invention;
FIG. 4 is a partial view of FIG. 3;
FIG. 5 is a partial view in the M direction of FIG. 4;
FIG. 6 is an N-directional partial cross-sectional view of FIG. 5;
fig. 7 is a bottom view of fig. 5.
The specific embodiment is as follows:
The process according to the invention is described in further detail below with reference to examples. It should be specifically noted that the protection scope of the present invention should include but not limited to the technical content disclosed in the present embodiment.
In the prior art, an inlet tensioning roller set 2, a guide plate A and a working roller set 5 are sequentially arranged on an aluminum alloy strip 1 from a feeding side to a discharging side, namely, only one guide plate A which is fixedly arranged is arranged between the inlet tensioning roller set 2 and the working roller set 5, the guide plate A cannot move, the distance between the guide plate A and the inlet tensioning roller set 2 and the working roller set 5 is narrow (only 2-5 mm), the guide plate is only convenient for guiding the strip during feeding, and the strip sagging is avoided, so that the strip cannot be accurately guided between an upper working roller 51 and a lower working roller 52.
The aluminum alloy strip 1 is provided with an inlet tensioning roller set 2, a first guide plate 3, a second guide plate 4 and a working roller set 5 in sequence from a feeding side to a discharging side as shown in the figure.
Wherein the inlet tensioning roller set 2 comprises two lower tensioning rollers 21 positioned below the aluminum alloy strip and an inlet upper tensioning roller 22 positioned above the aluminum alloy strip, the inlet upper tensioning roller is positioned between the two lower tensioning rollers, and the working roller set 5 at least comprises an upper working roller 51 and a lower working roller 52 which are oppositely rolled up and down.
The second guide plate 4 is a guide plate fixedly arranged below the aluminum alloy strip, one end of the second guide plate 4 is abutted against the working roller set 5, the other end of the second guide plate 4 is abutted against one end of the first guide plate 3, the other end of the first guide plate 3 is abutted against the inlet tensioning roller set 2, and an oil nozzle 6 for spraying rolling oil to the lower surface of the aluminum alloy strip is fixedly arranged below the second guide plate 4.
The first guide plate 3 is arranged on the liftable slide block 7 and is positioned below the aluminum alloy strip, and an adjustable lifting roller 8 for adjusting the tension of the strip is fixedly arranged on the liftable slide block 7 and above the aluminum alloy strip, namely, the guide plate A is replaced by the first guide plate 3, the second guide plate 4 and the adjustable lifting roller 8, and the distance between the adjustable lifting roller 8 and the first guide plate 3 is 10-300mm.
The first guide plate is provided with two stations, the first guide plate is higher than (1-3 mm high) or is flush with the second guide plate when in the first station, the adjustable lifting roller is not propped against the aluminum alloy strip, the first guide plate is lower than the second guide plate when in the second station, the first guide plate does not shield the oil nozzle to spray rolling oil to the lower surface of the aluminum alloy strip, and meanwhile the adjustable lifting roller is propped against the aluminum alloy strip.
In the concrete working state, under the condition of non-rolling state, namely the first guide plate and the adjustable lifting roller are positioned at a first station (upper station), at the moment, the first guide plate is higher than or flush with the second guide plate, and the adjustable lifting roller does not press the aluminum alloy strip (the first guide plate shields the oil nozzle to spray rolling oil to the lower surface of the aluminum alloy strip, and the oil nozzle does not spray oil at the moment, so that rolling oil is not wasted), thereby being beneficial to the aluminum alloy strip entering the working roller set after sequentially passing through the inlet tension roller set, the first guide plate and the second guide plate, realizing the guiding of the strip, ensuring that the aluminum alloy strip is not blocked, being guided by the support of the first guide plate and the second guide plate (the same as the existing guide plate), ensuring that the end part of the aluminum alloy strip can be accurately guided between the upper working roller 51 and the lower working roller 52 of the working roller set, and avoiding that the aluminum alloy strip cannot be accurately guided into the working roller set; when the aluminum alloy strip is in a rolling state, the first guide plate and the adjustable lifting roller are positioned at a second station (lower station), at the moment, the first guide plate is lower than the second guide plate, the first guide plate does not shield the oil nozzle to spray rolling oil to the lower surface of the aluminum alloy strip (namely, the oil nozzle is opened to the space for spraying the rolling oil to the lower surface of the aluminum alloy strip), the rolling oil sprayed by the oil nozzle can be sprayed to the lower surface of the aluminum alloy strip, the lower surface of the aluminum alloy strip is washed, the residual aluminum powder amount on the surface of the aluminum alloy strip is reduced, the sprayed rolling oil is adhered to the lower surface of the aluminum alloy strip, the aluminum alloy strip can be well lubricated and isolated during rolling of the aluminum alloy strip, and meanwhile, the adjustable lifting roller can be lifted and pressed against the aluminum alloy strip, so that the wrap angle and the tension of the aluminum alloy strip are adjusted.
The first guide plate and the adjustable lifting roller have the structural design and two working stations, realize multiple functions, not only meet the function of guiding the strip, but also meet the requirement of spraying rolling oil on the lower surface of the strip under the condition of limited installation space of the oil nozzle so as to solve the problem of strip defects on the lower surface, and simultaneously adjust the wrap angle and the tensioning force of the strip.
The fixing frame 9 is installed below the second guide plate 4, the fixing frame 9 is fixed on the frame, the oil spray nozzles 6 are installed on the fixing frame 9, specifically, the oil spray pipes 61 parallel to the axis of the adjustable lifting roller are installed on the fixing frame, a plurality of oil spray nozzles 6 are arranged on the oil spray pipes, an oil inlet nozzle 62 is fixedly arranged on the lower portion of each oil spray pipe 61, the oil inlet nozzle is connected with a main pipeline (not shown in the figure) of rolling oil, and the rolling oil enters the inner cavity of each oil spray pipe 61 through the main pipeline and the oil inlet nozzle 62 and is sprayed out from each oil spray nozzle 6.
For reasonable design, the center of the oil nozzle 6 is provided with a central oil hole 63 communicated with the inner cavity of the oil nozzle, the free end surface of the oil nozzle is provided with a sink groove 64 communicated with the central oil hole 63 (the sink groove 64 is a rectangular sink groove or a trapezoid sink groove, the width of the bottom of the sink groove is equal to the diameter of the central oil hole), the symmetrical center surface 66 of the sink groove forms an included angle of 10 degrees with the axial lead of the over-center oil hole and the first plane 65 of the axial lead of the oil nozzle, and when the included angle between the first plane 65 and the symmetrical center surface 66 of the sink groove is between 0 and 9 degrees, the sprayed oil materials overlap (namely, the mutual interference of the sprayed oil materials of two adjacent oil nozzles is unfavorable for the uniform distribution of the oil materials).
For better injection, the first plane 65 and the standing surface 67 form an included angle of 30-60 degrees, so that the injection nozzle 6 is prevented from being blocked by the second guide plate 4, and the injection nozzle 6 and the first guide plate which can be lifted are not interfered in the vertical direction.
In order to achieve reasonable design, 7 oil spray nozzles are uniformly arranged at intervals of 60mm in the upper middle of the oil spray pipe, and 4 oil spray nozzles are arranged at intervals of 120mm in the outermost side of the 7 oil spray nozzles.
The liftable slide block 7 is slidably connected to the vertical guide rail 71, the vertical guide rail 71 is fixed to a frame, a hydraulic cylinder 72 or an electric push rod and the like are fixedly connected to the frame, the free end of a telescopic rod of the hydraulic cylinder is connected to the liftable slide block 7, and the telescopic rod is driven by the hydraulic cylinder 72 to drive the liftable slide block 7, the adjustable lifting roller 8 and the first guide plate 3 to lift.
The ground surface of the installation position of the device is provided with an oil collecting tank, so that the sprayed oil and impurities contained in the sprayed oil are collected in the oil collecting tank (and then recycled through recovery, filtration and reuse).
The device of the invention well utilizes the characteristic that the adjustable lifting roller and the first guide plate can lift and move, fully utilizes the gap generated by the descending of the adjustable lifting roller and the first guide plate to realize the injection of the rolling oil, fundamentally improves the problem of strip-shaped continuous or intermittent color difference defects, does not need a cleaning program, is beneficial to controlling the cost and the production efficiency, simultaneously widens the capability of equipment, ensures the quality of various products, and thoroughly improves the problem of strip-shaped color difference defects on the lower surface of the high Mg aluminum alloy strip.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. A device for improving strip defects on the lower surface of an aluminum alloy strip is characterized in that an inlet tensioning roller set, a first guide plate, a second guide plate and a working roller set are sequentially arranged from the feeding side to the discharging side of the aluminum alloy strip, the second guide plate is a guide plate fixedly arranged below the aluminum alloy strip, an oil nozzle used for spraying rolling oil to the lower surface of the aluminum alloy strip is fixedly arranged below the second guide plate, the first guide plate is arranged on a liftable sliding block and is positioned below the aluminum alloy strip, an adjustable lifting roller used for adjusting the tension of the strip is fixedly arranged on the liftable sliding block and above the aluminum alloy strip, the first guide plate is provided with two stations, when the first station is higher than or flush with the second guide plate, the adjustable lifting roller does not press the aluminum alloy strip, when the second station is used, the first guide plate is lower than the second guide plate, the first guide plate does not shield the oil nozzle to spray the rolling oil to the lower surface of the aluminum alloy strip, and when the adjustable lifting roller presses the aluminum alloy strip.
2. The device for improving strip defects on the lower surface of an aluminum alloy strip according to claim 1, wherein a fixing frame is arranged below the second guide plate, and the oil nozzle is arranged on the fixing frame.
3. The device for improving strip defects on the lower surface of an aluminum alloy strip according to claim 2, wherein an oil spraying pipe parallel to the axis of the adjustable lifting roller is arranged on the fixing frame, a plurality of oil spraying nozzles are arranged on the oil spraying pipe, and an oil inlet nozzle is fixedly arranged on the lower part of the oil spraying pipe and connected with a main pipeline of rolling oil.
4. The device for improving strip defects on the lower surface of an aluminum alloy strip according to claim 3, wherein the center of the oil nozzle is provided with a central oil hole communicated with the inner cavity of the oil nozzle, the free end surface of the oil nozzle is provided with a sink communicated with the central oil hole, and the symmetrical central surface of the sink forms an included angle of 10 degrees with the axial lead of the over-central oil hole and the first plane of the axial lead of the oil nozzle.
5. The device for improving strip defects on the lower surface of an aluminum alloy strip according to claim 4, wherein the sinking groove is a rectangular sinking groove or a trapezoid sinking groove, and the width of the bottom of the sinking groove is equal to the diameter of the central oil hole.
6. The apparatus for improving strip defects on a lower surface of an aluminum alloy strip as recited in claim 4, wherein the first plane forms an included angle of 30-60 degrees with the vertical plane.
7. The device for improving strip defects on the lower surface of an aluminum alloy strip according to claim 4, wherein the liftable sliding block is connected to a vertical guide rail in a sliding manner, the vertical guide rail is fixed on a frame, a hydraulic cylinder is fixedly connected to the frame, and the free end of a telescopic rod of the hydraulic cylinder is connected with the liftable sliding block.
8. The device for improving strip defects on the lower surface of an aluminum alloy strip according to claim 4, 5, 6 or 7, wherein 7 oil spray nozzles are uniformly arranged on the upper middle part of the oil spray pipe at intervals of 60mm, and 4 oil spray nozzles are arranged on the outermost side of the 7 oil spray nozzles at intervals of 120 mm.
9. The apparatus for improving strip defects on a lower surface of an aluminum alloy strip as recited in claim 8, wherein the inlet tension roller set comprises two lower tension rollers below the aluminum alloy strip and an inlet upper tension roller above the aluminum alloy strip, the inlet upper tension roller is positioned between the two lower tension rollers, and the work roller set comprises at least an upper work roller and a lower work roller which are oppositely rolled up and down.
10. A method of using the device for improving strip defects on the lower surface of an aluminum alloy strip according to claims 1-9, characterized in that:
When the aluminum alloy strip is in a non-rolling state, namely the first guide plate and the adjustable lifting roller are in a first station, the first guide plate is higher than or flush with the second guide plate, the adjustable lifting roller does not press the aluminum alloy strip, and the aluminum alloy strip sequentially passes through the inlet tension roller set, the first guide plate, the second guide plate and the working roller set from the feeding side, so that the introduction of the strip is realized;
When in a rolling state, namely the first guide plate and the adjustable lifting roller are in a second station, the first guide plate is lower than the second guide plate, the first guide plate does not shield the oil spray nozzle to spray rolling oil to the lower surface of the aluminum alloy strip, the adjustable lifting roller supports against the aluminum alloy strip, the rolling oil sprayed by the spray nozzle is sprayed to the lower surface of the aluminum alloy strip, the lower surface of the aluminum alloy strip is washed, the amount of residual aluminum powder on the surface of the aluminum alloy strip is reduced, the sprayed rolling oil is adhered to the lower surface of the aluminum alloy strip, and the aluminum alloy strip can be well lubricated and isolated when being rolled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510183448.XA CN119819731B (en) | 2025-02-19 | An apparatus and method for improving strip-shaped defects on the lower surface of aluminum alloy strips. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510183448.XA CN119819731B (en) | 2025-02-19 | An apparatus and method for improving strip-shaped defects on the lower surface of aluminum alloy strips. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119819731A true CN119819731A (en) | 2025-04-15 |
| CN119819731B CN119819731B (en) | 2026-02-17 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2003065A (en) * | 1977-08-25 | 1979-03-07 | British Steel Corp | Improvements in the manufacture of metal strip |
| CN101594945A (en) * | 2007-01-25 | 2009-12-02 | Sms西马格股份公司 | Apparatus for cooling metal strip |
| CN101780485A (en) * | 2009-12-30 | 2010-07-21 | 一重集团大连设计研究院有限公司 | Emulsion cleaning device |
| CN205762986U (en) * | 2016-07-13 | 2016-12-07 | 威海海鑫新材料有限公司 | A kind of cold-rolling mill air cushion guide plate tape threading apparatus |
| CN210676348U (en) * | 2019-09-09 | 2020-06-05 | 洛阳新远大冶金成套设备有限公司 | Automatic sealing air source device for aluminum foil mill |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2003065A (en) * | 1977-08-25 | 1979-03-07 | British Steel Corp | Improvements in the manufacture of metal strip |
| CN101594945A (en) * | 2007-01-25 | 2009-12-02 | Sms西马格股份公司 | Apparatus for cooling metal strip |
| CN101780485A (en) * | 2009-12-30 | 2010-07-21 | 一重集团大连设计研究院有限公司 | Emulsion cleaning device |
| CN205762986U (en) * | 2016-07-13 | 2016-12-07 | 威海海鑫新材料有限公司 | A kind of cold-rolling mill air cushion guide plate tape threading apparatus |
| CN210676348U (en) * | 2019-09-09 | 2020-06-05 | 洛阳新远大冶金成套设备有限公司 | Automatic sealing air source device for aluminum foil mill |
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