KR101701616B1 - Rolling apparatus - Google Patents

Rolling apparatus Download PDF

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Publication number
KR101701616B1
KR101701616B1 KR1020150086684A KR20150086684A KR101701616B1 KR 101701616 B1 KR101701616 B1 KR 101701616B1 KR 1020150086684 A KR1020150086684 A KR 1020150086684A KR 20150086684 A KR20150086684 A KR 20150086684A KR 101701616 B1 KR101701616 B1 KR 101701616B1
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KR
South Korea
Prior art keywords
work roll
roll
amount measuring
backup
threshing
Prior art date
Application number
KR1020150086684A
Other languages
Korean (ko)
Other versions
KR20160149538A (en
Inventor
황진동
정진우
박승윤
유광현
김형진
Original Assignee
현대제철 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to KR1020150086684A priority Critical patent/KR101701616B1/en
Priority to PCT/KR2016/000719 priority patent/WO2016204367A1/en
Publication of KR20160149538A publication Critical patent/KR20160149538A/en
Application granted granted Critical
Publication of KR101701616B1 publication Critical patent/KR101701616B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

An invention for a rolling device is disclosed. The rolling apparatus of the present invention comprises: a work roll on which a rolled material is rolled; A backup roll supporting the work roll; A work roll chock supporting both sides of the work roll; Backup roll chocks supporting both sides of the backup roll; A stabilizer piston connected to the work roll chock and the backup roll chock, respectively; And a threshing amount measuring device connected to the work roll chocks and the backup roll chocks, respectively, for measuring a threshing amount of the work roll and the backup roll.

Description

ROLLING APPARATUS [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling apparatus, and more particularly, to a rolling apparatus capable of measuring a throttling amount of a work roll and a backup roll.

In general, molten iron is produced in a steelmaking process, and molten iron is produced in a steelmaking process by removing impurities of a molten iron. In the casting process, molten steel is cast to produce rolled materials such as slabs and blooms. In the rolling process, rolled material is rolled to produce plates and coils. In the rolling process for manufacturing the rolled material, a pair cross-rolling machine is installed.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2004-0056233 (published on June 30, 2004, entitled "Work Roll Chock of Fair Cross Rolling Machine").

According to one embodiment of the present invention, there is provided a rolling apparatus capable of measuring a throttling amount of a work roll and a backup roll.

A rolling apparatus according to the present invention comprises: a work roll on which a rolled material is rolled; A backup roll supporting the work roll; A work roll chock supporting both sides of the work roll; Backup roll chocks supporting both sides of the backup roll; A stabilizer driver connected to the work roll chocks and the backup roll chocks, respectively; And a threshing amount measuring device connected to the work roll chock and the backup roll chock, respectively, for measuring a threshing amount of the work roll and the backup roll.

The threshing amount measuring device includes a threshing amount measuring rod connected to the work roll choke or the backup roll choke; A threshing amount measuring unit for measuring a displacement of the threshing amount measuring rod to calculate a threshing amount of the work roll and the backup roll; And a measuring section housing in which the threshing amount measuring section is accommodated.

The thimbling amount measuring rod and the threshing amount measuring part may be arranged parallel to the moving direction of the rolling material.

The thimbling amount measuring rod and the threshing amount measuring portion may be disposed on the rolling material discharge side of the work roll and the backup roll.

The jamming amount measuring device may further include a fluid supply device for supplying the fluid to the measurement part housing to increase the internal pressure of the measurement part housing.

The fluid supply device may supply air to the measurement section housing.

The fluid supply device includes a suction port installed in the measurement unit housing; A connection pipe connected to the suction port; And an air supply pump connected to the connection pipe to supply air through the connection pipe.

The rolling apparatus may further include a control unit for driving the stabilizer driving unit to correct the position of the work roll or the backup roll when it is determined that the amount of threshing measured by the threshing amount measuring apparatus is out of a predetermined allowable range .

According to the present invention, since the threshing amount measuring device measures the amount of thrust between the work roll and the backup roll, it is possible to confirm in real time whether or not the position of the work roll and the backup roll is changed during rolling of the rolling material in the rolling device.

Further, according to the present invention, when the work roll or the backup roll is displaced by the pressure of the rolled material, the stabilizer driving portion can be driven to move the work roll or the backup roll to the original position. Therefore, it is possible to correct the center of intersection of the work roll and the backup roll to be located at the center of the rolled material, thereby preventing the rolled material from being meandered or the rolled material from being defective.

Also, according to the present invention, since the fluid is supplied to the inside of the measurement unit housing to increase the internal pressure of the measurement unit housing, infiltration of the rolling oil into the measurement unit housing can be prevented. Therefore, it is possible to prevent the thimbling-amount measuring device from being damaged by the rolling oil.

1 is a configuration diagram showing a rolling apparatus according to an embodiment of the present invention.
2 is a plan view showing a work roll in a rolling apparatus according to an embodiment of the present invention.
3 is a perspective view showing a threshing amount measuring apparatus in a rolling apparatus according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view illustrating a threshing amount measuring apparatus in a rolling apparatus according to an embodiment of the present invention.
5 is a plan view showing a state in which one side of the upper work roll is moved in the apparatus for measuring the amount of thrust of the rolling apparatus according to the embodiment of the present invention.
6 is a plan view showing a state in which one side of the upper work roll is moved to the original position by the stabilizer driving unit in the apparatus for measuring the amount of shrinkage of the rolling apparatus according to the embodiment of the present invention.

Hereinafter, an embodiment of a rolling apparatus according to the present invention will be described with reference to the accompanying drawings. In the course of describing the rolling apparatus, the thicknesses of the lines and the sizes of the constituent elements shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a structural view showing a rolling apparatus according to an embodiment of the present invention, and FIG. 2 is a plan view showing a work roll in a rolling apparatus according to an embodiment of the present invention.

1 and 2, a rolling apparatus according to an embodiment of the present invention includes work rolls 111 and 113, backup rolls 121 and 123, work roll chocks 130, backup roll chocks 140, 150 and a threshing amount measuring device 160.

The work rolls 111 and 113 include an upper work roll 111 and a lower work roll 113 disposed on both sides of the rolled material 10. The upper work roll 111 and the lower work roll 113 are installed so as to cross each other. At this time, the longitudinal center portion of the upper work roll 111 intersects with the longitudinal center portion of the lower work roll 113. In the following, the center of a portion intersecting with the longitudinal center portion of the upper work roll 111 and the lower work roll 113 is referred to as an intersection portion center C.

The backup rolls 121 and 123 are installed to support the work rolls 111 and 113. The backup rolls 121 and 123 include an upper backup roll 121 supporting the upper work roll 111 and a lower backup roll 123 supporting the lower work roll 113. [ The upper backup roll 121 is parallel to the upper work roll 111 and the lower backup roll 123 is installed in parallel with the lower work roll 113.

The work roll chocks 130 support both sides of the work rolls 111 and 113 so that the work rolls 111 and 113 can be rotated. The work roll chock 130 is installed in a stabilizer frame (not shown). The work roll chocks 130 are installed on both sides of the upper work roll 111 and on both sides of the lower work roll 113, respectively.

The backup roll chock 140 supports both sides of the backup rolls 121 and 123 so that the backup rolls 121 and 123 can be rotated. The backup roll chock 140 is installed in the stabilizer frame. The backup roll chocks 140 are installed on both sides of the upper backup roll 121 and on both sides of the lower backup roll 123, respectively.

The stabilizer drive unit 150 is connected to the work roll chock 130 and the backup roll chock 140, respectively. The angle of intersection of the upper work roll 111 and the lower work roll 113 is adjusted as the stabilizer driving part 150 is driven. The stabilizer drive unit 150 may be a piston including a cylinder 151 and a rod 153. When the fluid is supplied to the cylinder 151, the rod 153 is pulled out from the cylinder 151. When the fluid is discharged from the cylinder 151, the rod 153 is drawn into the cylinder 151. The stabilizer driving unit 150 may move one side or both sides of the work rolls 111 and 113 or one side or both sides of the backup rolls 121 and 123.

The stabilizer drive unit 150 is disposed on the discharge side of the rolling material 10 of the work rolls 111 and 113 and the backup rolls 121 and 123. The stabilizer drive unit 150 supports the work rolls 111 and 113 and the backup rolls 121 and 123 at the discharge side of the rolling material 10 so that the impact of the rolling material 10 on the work rolls 111 and 113 and the backup rolls 121 and 123 The impact can be absorbed by the fluid of the stabilizer driving unit 150. [ Therefore, it is possible to prevent the work rolls 111 and 113 and the backup rolls 121 and 123 from being damaged or displaced by the impact of the rolled material 10.

FIG. 3 is a perspective view showing a threshing amount measuring apparatus in a rolling apparatus according to an embodiment of the present invention, and FIG. 4 is a sectional view showing a threshing amount measuring apparatus in a rolling apparatus according to an embodiment of the present invention.

3 and 4, the jamming amount measuring device 160 is connected to the work roll chocks 130 and the backup roll chocks 140 to detect the amount of thrusting of the work rolls 111 and 113 and the backup rolls 121 and 123 do. The control unit 170 can control the stirrer driving unit 150 by measuring the amount of thrashing of the work rolls 111 and 113 and the backup rolls 121 and 123 in the jolt amount measuring apparatus 160. The center of intersection C between the work rolls 111 and 113 and the backup rolls 121 and 123 is shifted to the center of the rolled material 10 from one side in the widthwise central portion of the housing. Therefore, it is possible to prevent the rolling material 10 from skewing or causing a defect in the rolled material 10 when the rolling material 10 is rolled in the work rolls 111 and 113. For example, it is possible to prevent the rolled material 10 from being rolled so as to be twisted with a wave, or to be defective such as roll mark generation and edge defects.

The jamming amount measuring device 160 includes a jamming amount measuring rod 161, a jamming amount measuring part 163, and a measuring part housing 165.

The thimbling amount measuring rod 161 is connected to the work roll chock 130 or the backup roll chock 140. The jig amount measuring rod 161 is moved by the distance that the work roll chock 130 and the backup roll chock 140 are pushed and moved. An engaging member 162 is connected to the end of the jaw amount measuring rod 161 so as to be coupled to the work roll chock 130 or the backup roll chock 140.

The jumper amount measuring unit 163 measures the displacement (moving distance) of the jumper amount measuring rod 161 and calculates the throttling amount of the work rolls 111 and 113 and the backup rolls 121 and 123. A displacement sensor (not shown) is provided inside the thrust amount measuring unit 163 so as to measure the displacement of the thrust amount measuring rod 161.

In the inside of the measuring section housing 165, a threshing amount measuring section 163 is accommodated. It is possible to prevent the rolling oil sprayed on the work rolls 111 and 113 and the back-up rolls 121 and 123 from penetrating into the inside of the thrust amount measuring unit 163 because the thrust amount measuring unit 163 is accommodated in the measuring unit housing 165 can do. Therefore, it is possible to prevent the thimbling amount measuring section 163 from being damaged by the rolling oil.

The thimbling amount measuring rod 153 and the thimbling amount measuring portion 163 are arranged in parallel to the moving direction of the rolling material 10. The pressure is applied to the work rolls 111 and 113 and the backup rolls 121 and 123 in the discharge direction of the rolled material 10 when the rolled material 10 is moved while being rolled by the work rolls 111 and 113. The thimbling amount measuring rod 153 and the threshing amount measuring portion 163 are disposed in parallel to the moving direction of the rolling material 10 so that when the work rolls 111 and 113 or the backup rolls 121 and 123 are pushed and moved, ) Can be accurately measured.

The thimbling amount measuring rod 153, the thimbling amount measuring portion 163 and the measuring portion housing 165 are disposed on the side of the work rolls 111 and 113 and the backup rolls 121 and 123 on the side of the rolling material 10 on the discharge side. The thrust amount measuring rod 161 is moved by the distance that the work rolls 111 and 113 and the backup rolls 121 and 123 are pushed to the discharge side of the rolled material 10 so that the thrust amount of the work rolls 111 and 113 and the backup rolls 121 and 123 Can be accurately measured.

The jamming amount measuring device 160 further includes a fluid supply device 167 for supplying fluid to the measurement part housing 165 to increase the internal pressure of the measurement part housing 165. Since the fluid supply device 167 supplies the fluid to the inside of the measurement part housing 165 so that the pressure of the inside of the measurement part housing 165 becomes higher than the atmospheric pressure so that the rolling oil penetrates into the measurement part housing 165 . Therefore, it is possible to prevent the thimbling amount measuring section 163 from being damaged by the rolling oil. Since the thimbling amount measuring unit 163 is cooled by the fluid, it is possible to prevent the thimbling amount measuring unit 163 from being damaged by the heat of the rolling material 10. [

The fluid supply device 167 supplies air to the measurement section housing 165. Since the air is supplied into the measurement housing 165, the internal pressure of the measurement housing 165 is formed to be larger than the atmospheric pressure. Therefore, it is possible to prevent the rolling oil from penetrating into the inside of the measurement section housing 165. In addition, since the rolling oil falls down to the outside of the measuring section housing 165 and air flows into the measuring section housing 165, the measuring section housing 165 can be cooled by the rolling oil and the air. Therefore, it is possible to prevent the thimbling amount measuring section 163 from being damaged by the heat of the rolled material 10. [

The fluid supply device 167 includes a suction port 167a provided in the measurement section housing 165, a connection pipe 167b connected to the suction port 167a and a connection pipe 167b connected to the connection pipe 167b, And an air supply pump 167c for supplying air through the air supply pump 167c. As the air supply pump 167c is driven, air flows into the measurement housing 165 through the connection pipe 167b and the suction port 167a, so that the internal pressure of the measurement housing 165 is made higher than the atmospheric pressure do.

The rolling apparatus drives the stabilizer driving unit 150 to measure the position of the work rolls 111 and 113 and the backup rolls 121 and 123 when it is determined that the amount of threshing measured by the threshing amount measuring apparatus 160 is out of the predetermined allowable range And a control unit 170 for correcting by the amount of threshing.

The control unit 170 is preliminarily inputted with reference data relating to the coordinates of the work rolls 111 and 113 and the backup rolls 121 and 123 and the allowable range allowing the coordinate change of the work rolls 111 and 113 and the backup rolls 121 and 123. The control unit 170 drives the stabilizer driving unit 150 to move the work rolls 111 and 113 and the backup rolls 121 and 123 to the reference coordinates to correct the positions of the work rolls 111 and 113 and the backup rolls 121 and 123. The position of the work rolls 111 and 113 and the backup rolls 121 and 123 is corrected so that the center of intersection C of the work rolls 111 and 113 and the backup rolls 121 and 123 is moved to one side in the widthwise center portion of the rolled material 10 . Therefore, it is possible to prevent the rolling material 10 from being skewed or defective when it is rolled in the work rolls 111 and 113.

The operation of the rolling apparatus according to one embodiment of the present invention will be described.

FIG. 5 is a plan view showing a state where one side of the upper work roll is moved in the apparatus for measuring the amount of movement of a rolling apparatus according to an embodiment of the present invention, and FIG. 6 is a cross- FIG. 5 is a plan view showing a state in which one side of the upper work roll is moved in place by the stabilizer driving unit in the measuring apparatus.

Referring to Figs. 5 and 6, the rolled material 10 is transferred between the upper work roll 111 and the lower work roll 113. The rolled material 10 is rolled by rotating the upper work roll 111, the lower work roll 113, the upper backup roll 121 and the lower backup roll 123. During the transfer of the rolled material 10, pressure is applied to the work rolls 111, 113 and backup rolls 121, 123 to the discharge side of the rolled material 10.

The work rolls 111 and 113 and the backup rolls 121 and 123 can be pushed to the discharge side of the rolled material 10 by the pressure of the rolled material 10. For example, when one side (upper side in the figure) of the upper work roll 111 is slightly pushed to the discharge side of the rolled material 10, the center of the intersection of the upper work roll 111 and the lower work roll 113 : See Fig. 5) is moved to one side in the width direction of the rolled material 10 (the upper side in Fig. 5).

The jolt amount measuring device 160 measures the amount of thrusting of the work rolls 111 and 113 and the backup rolls 121 and 123. Each of the threshing amount measuring device 160 transmits a signal relating to the measured threshing amount to the controller 170. The control unit 170 determines whether or not the measured threshing amount in comparison with the reference data is out of the predetermined allowable range.

The control unit 170 drives the stabilizer driving unit 150 to move the work rolls 111 and 113 and the backup rolls 121 and 123 in accordance with the reference coordinates. For example, when one side of the upper work roll 111 is slightly pushed to the discharge side of the rolled material 10, the controller 170 controls the stabilizer drive unit 150 disposed on one side of the upper work roll 111 Thereby moving one side of the upper work roll 111 to the inflow side of the rolled material 10. [ At this time, one side of the work rolls 111 and 113 is moved to the reference coordinates. The center of intersection C of the work rolls 111 and 113 and the backup rolls 121 and 123 is moved to the central portion in the width direction of the rolled material 10 so that the rolled material 10 is skewed or the rolled material 10 is defective Can be prevented.

Further, the fluid supply device 167 is driven to supply the fluid inside the measurement section housing 165. At this time, as the air supply pump 167c is driven, air is supplied into the measurement housing 165 through the connection pipe 167b and the suction port 167a. As the supply is supplied to the interior of the measurement housing 165, the internal pressure of the measurement housing 165 is increased above the atmospheric pressure. Therefore, even if the rolling oil falls to the measuring section housing 165, it can be prevented that the rolling oil penetrates into the measuring section housing 165. Further, since the rolling oil is heat-exchanged with the measuring section housing 165, the measuring section housing 165 can be protected from the heat of the rolling material 10.

As the thimbling amount measuring apparatus 160 measures the amount of thrust of the work rolls 111 and 113 and the backup rolls 121 and 123 as described above, the work rolls 111 and 113, It is possible to confirm in real time whether or not the positions of the first and second sensors 121 and 123 are changed.

When the work rolls 111 and 113 or the backup rolls 121 and 123 are displaced by the pressure of the rolled material 10 and the position is changed, the stabilizer driving part 150 is driven to move the work rolls 111 and 113 or the backup rolls 121 and 123 It can be moved to the home position. The center of intersection C of the work rolls 111 and 113 and the backup rolls 121 and 123 can be corrected so as to be positioned at the center of the rolled material 10 so that the rolled material 10 is skewed, It is possible to prevent defects from being generated.

The stabilizer drive unit 150 is disposed on the side of the work rolls 111 and 113 and the backup rolls 121 and 123 on the discharge side of the rolled material 10 so that the stabilizer drive unit 150 is installed on the work rolls 111 and 113 and the backup rolls 121 and 123, The impact can be buffered by the fluid of the stabilizer driving unit 150. [

In addition, since the fluid is supplied to the inside of the measurement unit housing 165 to increase the internal pressure of the measurement unit housing 165, infiltration of the rolling oil into the measurement unit housing 165 can be prevented. Therefore, it is possible to prevent the thimbling-amount measuring device 160 from being damaged by the rolling oil.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the claims.

10: Rolling material 111: Upper work roll
113: Lower work roll 121: Upper backup roll
123: Lower backup roll 130: Work roll chock
140: Backup roll choke 150: Stabilizer driving part
151: cylinder 153: rod
160: threshing amount measuring device 161: threshing amount measuring rod
162: coupling member 163:
165: Measuring section housing 167: Fluid supply device
167a: suction port 167b: connection pipe
167c: Supply pump 170:

Claims (8)

A work roll on which the rolled material is rolled;
A backup roll supporting the work roll;
A work roll chock supporting both sides of the work roll;
Backup roll chocks supporting both sides of the backup roll;
A stabilizer driver connected to the work roll chocks and the backup roll chocks, respectively; And
And a threshing amount measuring device connected to the work roll chock and the backup roll chock, respectively, for measuring a threshing amount of the work roll and the backup roll,
The apparatus according to claim 1,
A threshing amount measuring rod connected to the work roll chock or the backup roll chock;
A threshing amount measuring unit for measuring a displacement of the threshing amount measuring rod to calculate a threshing amount of the work roll and the backup roll; And
And a measuring section housing in which the threshing amount measuring section is accommodated,
Further comprising a fluid supply device for supplying fluid to the measurement section housing to increase the internal pressure of the measurement section housing so as to prevent infiltration of the rolling oil into the measurement section housing, .
delete The method according to claim 1,
And the thimbling amount measuring rod and the threshing amount measuring portion are disposed in parallel to the moving direction of the rolling material.
The method according to claim 1,
Wherein the thimbling amount measuring rod and the threshing amount measuring portion are disposed on a side of the work roll and the backup roll on which the rolling material is discharged.
delete The method according to claim 1,
Wherein the fluid supply device supplies air to the measurement section housing.
The method according to claim 1,
The fluid supply device includes:
A suction port provided in the measurement unit housing;
A connection pipe connected to the suction port; And
And an air supply pump connected to the connection pipe to supply air through the connection pipe.
The method according to claim 1,
Further comprising a control unit for driving the stabilizer driving unit to correct the position of the work roll or the backup roll if it is determined that the amount of threshing measured by the threshing amount measuring device is out of a predetermined allowable range, .
KR1020150086684A 2015-06-18 2015-06-18 Rolling apparatus KR101701616B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020150086684A KR101701616B1 (en) 2015-06-18 2015-06-18 Rolling apparatus
PCT/KR2016/000719 WO2016204367A1 (en) 2015-06-18 2016-01-22 Rolling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150086684A KR101701616B1 (en) 2015-06-18 2015-06-18 Rolling apparatus

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Publication Number Publication Date
KR20160149538A KR20160149538A (en) 2016-12-28
KR101701616B1 true KR101701616B1 (en) 2017-02-01

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WO (1) WO2016204367A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006122968A (en) * 2004-10-29 2006-05-18 Jfe Steel Kk Rolling mill for metallic material, and its rolling method

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Publication number Priority date Publication date Assignee Title
JP3065788B2 (en) * 1992-05-20 2000-07-17 株式会社日立製作所 Rolling mill and rolling method
KR0131480Y1 (en) * 1992-12-29 1999-04-15 구자홍 Motor
JP3495909B2 (en) * 1998-03-30 2004-02-09 株式会社東芝 Roll roll profile control device
KR100957926B1 (en) * 2008-06-23 2010-05-13 주식회사 포스코 Apparatus for roughing mill
KR101560838B1 (en) * 2009-04-03 2015-10-19 주식회사 포스코 Vertical sort diagnostic device for rolling machine and diagnostics
KR101466167B1 (en) * 2013-03-28 2014-11-28 현대제철 주식회사 Apparatus and method for auto control of pair cross

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006122968A (en) * 2004-10-29 2006-05-18 Jfe Steel Kk Rolling mill for metallic material, and its rolling method

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WO2016204367A1 (en) 2016-12-22

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