CN102728660B - Roller leveler and leveling roll unit for the same - Google Patents
Roller leveler and leveling roll unit for the same Download PDFInfo
- Publication number
- CN102728660B CN102728660B CN201210100191.XA CN201210100191A CN102728660B CN 102728660 B CN102728660 B CN 102728660B CN 201210100191 A CN201210100191 A CN 201210100191A CN 102728660 B CN102728660 B CN 102728660B
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- mentioned
- roll
- smoothing roll
- metallic plate
- smoothing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/05—Stretching combined with rolling
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0071—Levelling the rolled product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
The present invention provides a roller leveler (100) which comprises a leveling roll unit (20), an oil-pressure pressing cylinder block (4), and drive devices (15, 16), wherein the leveling roll unit (20) has multiple leveling rolls (6, 8) which are interleavingly arranged on a metal plate (P) to be corrected, and clamp the metal plate (P) for correction, and rotate by the mode of making the metal plate get through at the same time,the oil-pressure pressing cylinder block (4) presses the metal plate through the leveling rolls (6, 8),the drive devices (15, 16) drive the leveling rolls (6, 8) to rotate and make the metal plate get through,the leveling roll unit (20) comprises fluid flow forming mechanisms (21, 22) which are arranged between the leveling rolls (6 or 8) along the through plate direction of the metal plate (P),the fluid flow is formed from the scale cinder peeled off from the surface of the metal plate to the end side of the width direction of the metal plate,and the rectification component (19) guides the fluid flow outwards.
Description
Technical field
The present invention relates to correct the roll leveller (leveler) of metallic plate and the smoothing roll unit for this roll leveller.
Background technology
Although implement rolling, cooling etc. in the process of manufacturing the metallic plates such as steel plate, in these operations, metallic plate produces bending or corrugated distortion.Therefore, make metallic plate smooth as object to correct so bending or corrugated distortion, use many smoothing rolls at upper and lower staggered the roll leveller configuring.
Roll leveller, with state that top roll is pressed into respect to lower roll or the state so that lower roll is pressed into respect to top roll, passes through the metallic plate that correct, makes bending or the waveform planarization of metallic plate by apply alternating bending to metallic plate.
Surface at the metallic plate that should correct is formed with oxide skin (scale: lepidiod thin slice), in the correcting process of metallic plate, the oxide skin of peeling off is pressed into metallic plate and produces flaw at metal sheet surface in the roller in the conveyance direction downstream of metallic plate.Therefore, disclose following technology, that is: between the roller of the conveyance direction adjacency along metallic plate, configure air injection nozzle, utilize the fluid of air etc. that the oxide skin of peeling off is blown to outside and flown (for example patent documentation 1) along the rectangular direction of roller.
Patent documentation 1: Japanese Patent Publication 3-12972 communique
But, there is the roll chock (chock) etc. that bears roller in roll end side, owing to oxide skin being blown to flowing and roll chock collision of the fluids such as the air that flies, so a part of temporarily being blown the oxide skin flying is to metallic plate side adverse current.
Summary of the invention
The present invention produces in view of such situation, and its problem is, provides and can suppress to be blown from the metallic plate that should correct the oxide skin that flies to the roll leveller of the metallic plate adverse current that should correct and for the smoothing roll unit of this roll leveller.
In order to solve above-mentioned problem, the invention provides a kind of roll leveller, it is characterized in that possessing: smoothing roll unit, this smoothing roll unit has multiple smoothing rolls, the plurality of smoothing roll is disposed at logical printed line upper and lower of the metallic plate that correct staggeredly, and corrects while the mode that metallic plate passes through is rotated to clamp metallic plate; And press cylinder body, this press cylinder body via above-mentioned smoothing roll by laminated metal sheet, above-mentioned smoothing roll unit has: this fluid stream formation mechanism is arranged at along between the smoothing roll of the logical plate direction adjacency of metallic plate, and between above-mentioned smoothing roll, forms the fluid stream that the oxide skin of the sur-face peeling from metallic plate is blown side to the end of metallic plate width and fly; And rectification part, this rectification part is to the above-mentioned fluid stream of exterior guiding.
And, the invention provides a kind of smoothing roll unit, it is characterized in that: there are multiple smoothing rolls, the plurality of smoothing roll is correcting the upper and lower of staggered the logical printed line that is disposed at the metallic plate that correct in the roll leveller of metallic plate, and correct while the mode that metallic plate passes through is rotated to clamp metallic plate, this smoothing roll unit has: fluid stream forms mechanism, this fluid stream formation mechanism is arranged at along between the smoothing roll of the logical plate direction adjacency of metallic plate, and the fluid stream that forming between above-mentioned smoothing roll blows side the oxide skin of the sur-face peeling from metallic plate flies to the end of metallic plate width, and rectification part, this rectification part is to the above-mentioned fluid stream of exterior guiding.
In the present invention, above-mentioned rectification part can be configured to, near the end of downstream side of above-mentioned fluid stream is arranged at the roll chock of the above-mentioned smoothing roll of supporting, and have to make above-mentioned fluid stream not with the mode of above-mentioned roll chock collision by the inclination to the above-mentioned fluid stream of exterior guiding.And above-mentioned rectification part can be configured to, in the end of downstream side of above-mentioned fluid stream, be set to one with the roll chock of the above-mentioned smoothing roll of supporting.And, above-mentioned smoothing roll unit can be configured to: have and be disposed at the multiple tops smoothing roll on above-mentioned logical printed line and be disposed at the multiple bottoms smoothing roll under above-mentioned logical printed line, and above-mentioned smoothing roll unit at least arranges above-mentioned rectification part at above-mentioned bottom smoothing roll.
According to the present invention, be provided with the rectification part for the fluid stream except descale to exterior guiding, therefore can prevent that the fluid that contains oxide skin from flowing towards metallic plate side adverse current.Therefore, can very effectively suppress that oxide skin is attached to metallic plate again and produce the situation of flaw at metallic plate.
Brief description of the drawings
Fig. 1 is the side view of the roll leveller that represents that an embodiment of the invention relate to.
Fig. 2 is the front view of the roll leveller that represents that an embodiment of the invention relate to.
Fig. 3 is the schematic diagram that represents the smoothing roll unit in roll leveller that an embodiment of the invention relate to.
Fig. 4 is the stereogram that represents the installment state of the rectification part of smoothing roll unit.
Fig. 5 is the schematic diagram that represents the state for the air-flow except descale in existing roll leveller.
Fig. 6 is the schematic diagram of the state for the air-flow except descale of the roll leveller that represents that an embodiment of the invention relate to.
Symbol description:
1... housing; 2... upper frame; 3... underframe; 4... depress (pressing) cylinder body; 5... top roll frame; 6... top smoothing roll; 7... upper backup roll; 8... bottom smoothing roll; 9... lower backing roll; 10... lower roll frame; 15,16... drive unit; 17a, 17b, 18a, 18b... roll chock; 19... rectification part; 19a, 19b... rake; 20... smoothing roll unit; 21... the first air injection nozzle; 22... the second air injection nozzle; 100... roll leveller; P... metallic plate (being corrected material).
Detailed description of the invention
Referring to accompanying drawing, embodiments of the present invention are described.
Fig. 1 is the side view that represents the related roll leveller of an embodiment of the invention, and Fig. 2 is its front view.The roll leveller 100 of present embodiment has: housing 1; Be arranged at the upper frame 2 of the inner side of housing 1; And the underframe 3 arranging in the mode of support housing 1.Between housing 1 and upper frame 2, dispose and depress cylinder body 4 (also referred to as pressing cylinder body 4), below upper frame 2, top roll frame 5 is clamped cylinder body (not shown) by top roll and slings.On the other hand, on underframe 3, be provided with lower roll frame 10.
In addition, in this manual, the situation of exerting pressure be as shown in Figure 1 not only down in " depressing " this term, also comprises the situation of upwards exerting pressure as illustrated as modification below.In other words, in this manual, " depressing " this term can be replaced into " pressing " this term.
Between top roll frame 5 and lower roll frame 10, be provided with smoothing roll unit 20, this smoothing roll unit 20 has: many top smoothing rolls 6, and the mode being supported by top roll frame 5 for 5 times at top roll frame configures; And many bottom smoothing rolls 8, be arranged at the opposition side of the roll line across metallic plate P of top smoothing roll 6, and supported by lower roll frame 10.In conveyance direction upstream side and the downstream of the metallic plate P of smoothing roll unit 20, be provided with the guide reel 14 of guide wire plate P.
On top smoothing roll 6, in the mode of top roll frame 5, dispose the upper backup roll 7 of multiple billets that top smoothing roll 6 is supported with the axially mounting along top smoothing roll 6.In addition, lower smoothing roll 8 times, in the mode of lower roll frame 10, dispose the lower backing roll 9 of multiple billets that bottom smoothing roll 8 is supported with the axially mounting along bottom smoothing roll 8.
Depress cylinder body 4 and depress metallic plate P by top roll frame 5, upper backup roll 7 and top smoothing roll 6.In addition, substitute top smoothing roll 6 is depressed depress cylinder body 4, the cylinder body of depressing that bottom smoothing roll 8 is depressed also can be set.
Next, smoothing roll unit 20 is elaborated.
As shown in Figure 3, smoothing roll unit 20, except having top smoothing roll 6 and bottom smoothing roll 8, also has the drive unit 15 and 16 that they are rotated.And the driving side of top smoothing roll 6 and active side are supported by roll chock 17a and 17b respectively, the driving side of bottom smoothing roll 8 and active side are supported by roll chock 18a and 18b respectively.
Between the top of adjacency smoothing roll 6, dispose multiple the first air injection nozzles 21 along the width of metallic plate P, this first air injection nozzle 21 is from the top of metallic plate P towards metallic plate P and towards the incline direction blow out air of active side.In addition, between the top of adjacency smoothing roll 6, be provided with the second air injection nozzle 22 from driving side to active side blow out air.Above-mentioned the first air injection nozzle 21 and the second air injection nozzle 22 form mechanism as air-flow and play a role.Oxide skin is removed from the surface of metallic plate P by the air from the first air injection nozzle 21, forms the air-flow that comprises oxide skin by the air from the second air injection nozzle 22, and oxide skin is blown and flown to the foreign side of active side.In addition, between the bottom of adjacency smoothing roll 8, be also provided with the first air injection nozzle 21 and the second air injection nozzle 22 from driving side to active side blow out air.There is trapping to be blown the oxide skin flying the dust arrester 23 that carries out control of dust in the outer setting of active side.
In addition, due to top smoothing roll 6 and the staggered configuration of bottom smoothing roll 8, therefore in fact, first and second air injection nozzle 21,22 between first and second air injection nozzle 21,22 and bottom smoothing roll 8 between top smoothing roll 6 can not be seen simultaneously, but in Fig. 3, for convenience's sake, all depict the first and second air injection nozzle 21,22 both sides between top smoothing roll 6 and between bottom smoothing roll 8.
In the active side end of top smoothing roll 6 and bottom smoothing roll 8, be provided with and make the air that comprises oxide skin flow to swimmingly outside rectification part 19.Also as shown in the stereogram of Fig. 4, be formed with the rake 19a with the inclination of rising toward the outer side at the rectification part 19 of bottom smoothing roll 8 sides, this rake 19a is so that the mode of not meeting roll chock 18b and discharge to outside swimmingly that flows of the air-flow between the bottom smoothing roll 8 of adjacency guides injected air.Be formed with the rake 19b with the inclination declining toward the outer side at the rectification part 19 of top smoothing roll 6 sides, this rake 19b is so that the mode of not meeting roll chock 17b and discharge to outside swimmingly that flows of the air-flow between the top smoothing roll 6 of adjacency guides injected air.
Next, the action when utilizing the roll leveller 100 of such formation to carry out the rectification of metallic plate P describes.
First,, from the upstream side of the smoothing roll unit 20 of roll leveller 100, the state guiding with directed roller 14 to the 20 side supplies of smoothing roll unit, and inserts metallic plate P between top smoothing roll 6 and bottom smoothing roll 8 by metallic plate P.And, depress cylinder body 4 by utilization and depress, clamp metallic plate P by top smoothing roll 6 and bottom smoothing roll 8, and utilize drive unit 15 and 16 that top smoothing roll 6 and bottom smoothing roll 8 are rotated, thereby metallic plate P is passed through between above-mentioned roller.Therefore metallic plate P is corrected and planarization.
The metal sheet surface of correcting in wish is formed with oxide skin, peels off oxide skin in the time that metallic plate P corrects, and the oxide skin of peeling off is pressed into metallic plate P by the smoothing roll in the conveyance direction downstream of metallic plate P, thereby produces flaw at metal sheet surface.Therefore, the first air injection nozzle 21 and the second air injection nozzle 22 are being set between the top of adjacency smoothing roll 6 and between bottom smoothing roll 8, the oxide skin that flies to peel off along the width of metallic plate P and towards work side-blown, thus suppress to produce flaw due to oxide skin at metallic plate P.
But, if do not take any countermeasure, between the top of adjacency smoothing roll 6 and between bottom smoothing roll 8, forming the air-flow towards active side, as shown in Figure 5, air-flow f and roll chock 17b and 18b collide and rebound, and are temporarily blown a part of adverse current of the oxide skin flying to metallic plate P side together with air-flow f.Therefore, oxide skin is again attached to metallic plate P and is difficult to fully suppress the flaw of metallic plate P.
Therefore, in the present embodiment, rectification part 19 is set, as shown in Figure 6, with the air-flow that makes to form between the top of adjacency smoothing roll 6 and between bottom smoothing roll 8, does not rebound with roll chock 17b, 18b collision and swimmingly to flows outside.Particularly, at rectification part 19 places of bottom smoothing roll 8 sides, air-flow f is had the rake 19a guiding of the inclination of rising towards outside and is not collided with roll chock 18b and discharge to outside, and at the rectification part place of top smoothing roll 6 sides, air-flow f is had the rake 19b guiding of the inclination declining towards outside and does not collide and discharge to outside with roll chock 17b.Therefore, can prevent that oxide skin is to metallic plate P adverse current.And then, can very effectively suppress that oxide skin adheres again to metallic plate P and produce flaw at metallic plate P.
In addition, the present invention is not limited to above-mentioned embodiment, can have various distortion.For example, in the above-described embodiment, although represented the top roll of smoothing roll to depress with respect to lower roll the device of (pressing) downwards, also lower roll can be depressed to (upwards pressing) with respect to top roll.In addition, in the above-described embodiment, be provided with rectification part 19 in top smoothing roll 6 sides and bottom smoothing roll 8 side both sides, but also can be only in the 8 side settings of bottom smoothing roll.And, although rectification part 19 and roll chock are arranged respectively, also rectification part and roll chock can be wholely set., also can make roll chock there is the function of rectification part.And further, use air as blowing the fluid that flies oxide skin, but be not limited to this, can be also other fluid.
Claims (6)
1. a roll leveller, is characterized in that, possesses:
Smoothing roll unit, this smoothing roll unit has multiple smoothing rolls, and the plurality of smoothing roll is disposed at logical printed line upper and lower of the metallic plate that correct staggeredly, and corrects while the mode that metallic plate passes through is rotated to clamp metallic plate; And
Press cylinder body, this press cylinder body via above-mentioned smoothing roll by laminated metal sheet,
Above-mentioned smoothing roll unit has:
Fluid stream forms mechanism, this fluid stream formation mechanism is arranged at along between the smoothing roll of the logical plate direction adjacency of metallic plate, and between above-mentioned smoothing roll, forms the fluid stream that the oxide skin of the sur-face peeling from metallic plate is blown side to the end of metallic plate width and fly; And
Rectification part, this rectification part flows to the above-mentioned fluid of exterior guiding,
Near the above-mentioned rectification part of end of downstream side of above-mentioned fluid stream is arranged at the roll chock of the above-mentioned smoothing roll of supporting, and have to make above-mentioned fluid stream not with the inclination to the above-mentioned fluid stream of exterior guiding of the mode of above-mentioned roll chock collision.
2. roll leveller according to claim 1, is characterized in that,
The above-mentioned rectification part of end of downstream side at above-mentioned fluid stream is set to one with the roll chock of the above-mentioned smoothing roll of supporting.
3. roll leveller according to claim 1 and 2, is characterized in that,
Above-mentioned smoothing roll unit has and is disposed at the multiple tops smoothing roll on above-mentioned logical printed line and is disposed at the multiple bottoms smoothing roll under above-mentioned logical printed line, and above-mentioned smoothing roll unit is at least provided with above-mentioned rectification part at above-mentioned bottom smoothing roll.
4. a smoothing roll unit, is characterized in that,
Have multiple smoothing rolls, the plurality of smoothing roll is correcting the upper and lower of staggered the logical printed line that is disposed at the metallic plate that correct in the roll leveller of metallic plate, and corrects while the mode that metallic plate passes through is rotated to clamp metallic plate,
This smoothing roll unit has:
Fluid stream forms mechanism, this fluid stream formation mechanism is arranged at along between the smoothing roll of the logical plate direction adjacency of metallic plate, and between above-mentioned smoothing roll, forms the fluid stream that the oxide skin of the sur-face peeling from metallic plate is blown side to the end of metallic plate width and fly; And
Rectification part, this rectification part flows to the above-mentioned fluid of exterior guiding,
Near the above-mentioned rectification part of end of downstream side of above-mentioned fluid stream is arranged at the roll chock of the above-mentioned smoothing roll of supporting, and have to make above-mentioned fluid stream not with the inclination to the above-mentioned fluid stream of exterior guiding of the mode of above-mentioned roll chock collision.
5. smoothing roll according to claim 4 unit, is characterized in that,
The above-mentioned rectification part of end of downstream side at above-mentioned fluid stream is set to one with the roll chock of the above-mentioned smoothing roll of supporting.
6. according to the smoothing roll unit described in claim 4 or 5, it is characterized in that,
Above-mentioned smoothing roll unit has and is disposed at the multiple tops smoothing roll on above-mentioned logical printed line and is disposed at the multiple bottoms smoothing roll under above-mentioned logical printed line, and above-mentioned smoothing roll unit is at least provided with above-mentioned rectification part at above-mentioned bottom smoothing roll.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-086089 | 2011-04-08 | ||
| JP2011086089A JP5796988B2 (en) | 2011-04-08 | 2011-04-08 | Roller leveler and leveling roll unit used therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102728660A CN102728660A (en) | 2012-10-17 |
| CN102728660B true CN102728660B (en) | 2014-07-30 |
Family
ID=46985357
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201439417U Expired - Fee Related CN202621635U (en) | 2011-04-08 | 2012-04-06 | Roller-type straightener and straightening roller unit for the same |
| CN201210100191.XA Active CN102728660B (en) | 2011-04-08 | 2012-04-06 | Roller leveler and leveling roll unit for the same |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201439417U Expired - Fee Related CN202621635U (en) | 2011-04-08 | 2012-04-06 | Roller-type straightener and straightening roller unit for the same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5796988B2 (en) |
| KR (1) | KR101366495B1 (en) |
| CN (2) | CN202621635U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10010918B2 (en) * | 2016-10-05 | 2018-07-03 | Allor Manufacturing Inc. | Device and method for leveling a metal plate |
| KR102371417B1 (en) | 2017-04-11 | 2022-03-08 | (주)아모레퍼시픽 | Composition for anti inflammation comprising extract of ginseng floral axis |
| CN107983853B (en) * | 2017-12-27 | 2019-11-01 | 哈尔滨锅炉厂有限责任公司 | A kind of production method of the leveling apparatus and its smoothing wheel of station boiler band steel band |
| CN117840260B (en) * | 2024-03-07 | 2024-04-30 | 河北新金万利新材料科技有限公司 | Withdrawal and straightening device for galvanized steel sheet production |
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| JPS63104724A (en) * | 1986-10-22 | 1988-05-10 | Hitachi Ltd | Straightening machine |
| JPH1177159A (en) * | 1997-07-14 | 1999-03-23 | Kobe Steel Ltd | Method and device for scale removal in roller leveler |
| JP2970509B2 (en) * | 1995-11-21 | 1999-11-02 | 住友金属工業株式会社 | Method and apparatus for removing cooling water from steel strip |
| JP2000202524A (en) * | 1999-01-08 | 2000-07-25 | Kobe Steel Ltd | Descaling device in roller leveler and its method |
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| CN201862596U (en) * | 2010-05-25 | 2011-06-15 | 武汉科技大学 | Dust-absorbing device for seven-roller straightener |
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| JPS6238722A (en) * | 1985-08-10 | 1987-02-19 | Kawasaki Heavy Ind Ltd | Scale removing device for leveler for steel plate |
| JPH0281707U (en) * | 1988-12-08 | 1990-06-25 | ||
| JP3126001B2 (en) * | 1991-08-29 | 2001-01-22 | 川崎製鉄株式会社 | How to remove scale from tension leveler |
| JP3644140B2 (en) * | 1996-07-29 | 2005-04-27 | Ｊｆｅスチール株式会社 | High temperature metal plate cooling system |
| JP3311993B2 (en) * | 1998-05-20 | 2002-08-05 | 株式会社神戸製鋼所 | Descaling device in roller leveler |
| JP3280913B2 (en) * | 1998-07-01 | 2002-05-13 | 株式会社神戸製鋼所 | Descaling device in roller leveler |
| JP2003154403A (en) * | 2001-11-20 | 2003-05-27 | Kawasaki Steel Corp | Hot-rolling line and hot-rolling method |
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2011
- 2011-04-08 JP JP2011086089A patent/JP5796988B2/en active Active
-
2012
- 2012-04-03 KR KR1020120034411A patent/KR101366495B1/en active IP Right Grant
- 2012-04-06 CN CN2012201439417U patent/CN202621635U/en not_active Expired - Fee Related
- 2012-04-06 CN CN201210100191.XA patent/CN102728660B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63104724A (en) * | 1986-10-22 | 1988-05-10 | Hitachi Ltd | Straightening machine |
| JP2970509B2 (en) * | 1995-11-21 | 1999-11-02 | 住友金属工業株式会社 | Method and apparatus for removing cooling water from steel strip |
| JPH1177159A (en) * | 1997-07-14 | 1999-03-23 | Kobe Steel Ltd | Method and device for scale removal in roller leveler |
| JP2000202524A (en) * | 1999-01-08 | 2000-07-25 | Kobe Steel Ltd | Descaling device in roller leveler and its method |
| JP2008221298A (en) * | 2007-03-14 | 2008-09-25 | Jfe Steel Kk | Cooling facility for hot-rolled steel strip |
| CN201862596U (en) * | 2010-05-25 | 2011-06-15 | 武汉科技大学 | Dust-absorbing device for seven-roller straightener |
| CN201768776U (en) * | 2010-08-25 | 2011-03-23 | 一重集团大连设计研究院有限公司 | Scale removing device of tension leveling mechanical scale breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102728660A (en) | 2012-10-17 |
| CN202621635U (en) | 2012-12-26 |
| KR20120115109A (en) | 2012-10-17 |
| KR101366495B1 (en) | 2014-02-24 |
| JP2012218026A (en) | 2012-11-12 |
| JP5796988B2 (en) | 2015-10-21 |
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