WO2001070455A1 - Dispositif et procede de rectification, laminoir possedant ce dispositif et procede de laminage - Google Patents

Dispositif et procede de rectification, laminoir possedant ce dispositif et procede de laminage Download PDF

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Publication number
WO2001070455A1
WO2001070455A1 PCT/JP2000/001651 JP0001651W WO0170455A1 WO 2001070455 A1 WO2001070455 A1 WO 2001070455A1 JP 0001651 W JP0001651 W JP 0001651W WO 0170455 A1 WO0170455 A1 WO 0170455A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
grinding
rolling
grinding device
center axis
Prior art date
Application number
PCT/JP2000/001651
Other languages
English (en)
Japanese (ja)
Inventor
Fumihisa Shimaya
Shigeru Mori
Takao Sakanaka
Yukio Nakajima
Shinichi Yasunari
Original Assignee
Hitachi, Ltd.
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 Hitachi, Ltd. filed Critical Hitachi, Ltd.
Priority to JP2001568696A priority Critical patent/JP3870784B2/ja
Priority to PCT/JP2000/001651 priority patent/WO2001070455A1/fr
Publication of WO2001070455A1 publication Critical patent/WO2001070455A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/16—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged
    • B24B5/167—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged for rolls with large curvature radius, e.g. mill rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/37—Single-purpose machines or devices for grinding rolls, e.g. barrel-shaped rolls

Definitions

  • the present invention relates to a roll grinding device, a roll grinding method, a rolling mill provided with a roll grinding device, and a rolling method provided with a roll grinding device.
  • the present invention relates to a roll grinding apparatus, a roll grinding method, a rolling mill provided with a roll grinding apparatus, and a rolling method of a rolling mill provided with a roll grinding apparatus.
  • JP-A-6-47654 USP 5, 562, 525) and the like can be mentioned.
  • the rotating grinding wheel axis is fixedly installed, and a grinding stitch is generated at an arbitrary angle with respect to the vertical with respect to the grinding roll rotating axis. If a grinding line is formed on the roll surface, the grinding line is transferred to the rolled material, which may deteriorate the surface quality of the rolled material.
  • the inclination of the grindstone differs for each grindstone, and a boundary of the grindstone may occur.
  • Japanese Patent Application Laid-Open No. Hei 9-110382 discloses that two grinding wheels are offset by a predetermined amount in the opposite direction with respect to the roll axis, and the inclinations of the grinding lines are set in the same direction. I am trying to be. However, even in this technique, although the boundary of the grinding line is reduced, the inclination of the grinding line remains, and the grinding line is transferred to the rolled material, and there is a possibility that the surface quality of the rolled material is deteriorated.
  • An object of the present invention is to reduce the inclination of a grinding line and improve the surface quality of a rolled material in a grinding device for grinding a rolling roll. Disclosure of the invention
  • the present invention relates to a roll grinding technique provided with a grindstone for grinding a rolling roll, and mainly has the following features.
  • the rotation center axis of the rolling roll and the rotation center axis of the grinding wheel are arranged so as to be present on one plane.
  • it is characterized in that an extension of the rotation center axis of the grinding wheel and the rotation center axis of the rolling roll intersect.
  • the grinding wheel is arranged so as not to be offset from the rotation center axis of the rolling roll.
  • a device for adjusting the angle of the grinding wheel with respect to the vertical plane by moving the roll grinding device about the rotation center axis of the rolling roll is provided.
  • the roll grinding device is caused to follow the rotation center axis of the rolling roll so that the rotation center axis of the rolling roll and the rotation center axis of the grinding wheel are on one plane during grinding.
  • a tracking device is provided.
  • FIG. 1 is a partially enlarged sectional view of a side surface of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 2 is a mechanism diagram showing a relationship between a rotation axis of a grinding wheel, a rotation axis of a roll to be ground and a tilt angle of a grinding line.
  • FIG. 3 is an explanatory diagram showing a change in the rotation axis position of a rolling roll.
  • FIG. 4 is a cross-sectional view of a side surface of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 5 is a sectional plan view of a main part of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 6 is an explanatory diagram showing a positional relationship between a rolling roll rotation center and a grinding wheel rotation center according to one embodiment of the present invention.
  • FIG. 7 is a partial cross-sectional side view of a main part of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 8 is a partial cross-sectional plan view of a main part of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 9 is a partial sectional side view of a main part of a rolling mill provided with a grinding device according to an embodiment of the present invention.
  • FIG. 10 is a partial cross-sectional plan view of a main part of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 11 is a partial cross-sectional side view of a main part of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 12 is an explanatory diagram of a grinding eye by a grinding wheel.
  • FIG. 4 is a side sectional view of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • the rolling mill in the present embodiment is a four-stage rolling mill having a pair of upper and lower rolling rolls 1a for stretching the rolled material S, and a pair of upper and lower reinforcing ports 1b for supporting the rolling roll 1a.
  • the present embodiment is described using a four-high rolling mill, the present invention can be applied to a six-high rolling mill and other rolling mills.
  • the upper and lower rolling rolls 1 a are rotatably supported by the bearing boxes 3, respectively. These bearing boxes 3 are incorporated in a rolling housing 4.
  • An entry guide 10 is arranged on the entry side of the rolling mill. Where In Fig. 4, the right side is the rolling mill entry side, and the left side is the rolling mill exit side.
  • the entrance guide 10 guides the rolled material S so that the rolled material S advances between the pair of upper and lower rolling rolls 1a.
  • an on-line roll grinding means during rolling one or a plurality of grindstone devices 5 are provided on one side of a rolling mill for one rolling roll la. In the present embodiment, there is provided a grindstone device 5 for grinding a pair of upper and lower rolling rolls la online during rolling.
  • the rotation axis of the grinding wheel 12 is not parallel to the axis of the rolling roll 1a. That is, the axis of the rolling roll 1a and the axis of rotation of the grinding wheel 12 are substantially perpendicular to each other. As will be described later, if necessary, they may be arranged slightly inclined from the perpendicular direction.
  • FIG. 1 shows a partially enlarged cross-sectional view of a side of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 5 shows a top view of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • 2 shows a partially enlarged sectional view of FIG.
  • the grindstone device 5 includes a flat grinding wheel 12 for grinding the rolling roll 1a.
  • the grindstone device 5 includes a grindstone rotation drive device that rotates the grindstone 12, a grindstone feeder that presses the grindstone 12 onto the rolling roll 1 a, and moves the grindstone 12 in the axial direction of the rolling roll 1 a. And a whetstone traversing device.
  • the rotation center axis of the rolling roll 1a and the rotation center axis of the grinding wheel 12 of the grinding wheel device 5 are arranged so as to be present on one plane.
  • the grinding wheel 12 is arranged so that the extension of the rotation center axis of the grinding wheel 12 and the rotation center axis of the rolling roll 1a cross each other.
  • the rotation center axis of the grinding wheel 12 is arranged so as not to be offset from the rotation center axis of the rolling roll 1a. With such an arrangement, the inclination of the grinding stitch can be suppressed. 'If the above arrangement is not adopted, for example, if the rotation center axes of the two grinding wheels 12 are offset from the rotation center axis of the rolling roll 1a, as shown in FIG.
  • the grinding line on the surface of a is inclined.
  • the inclined grinding lines generated on the surface of the rolling roll 1a are transferred to the rolled material, and impair the surface quality of the rolled material.
  • a boundary line that is, a so-called lap mark is generated at a boundary where the grinding line of each grinding wheel 12 laps.
  • the wrap mark generated on the surface of the rolling roll 1a is transferred to the rolled material, and impairs the surface quality of the rolled material.
  • the grinding device 5 is connected to and mounted on a sliding rail 7 provided so as to be able to move from one side to the other side in the axial direction of the rolling roll 1a with wheels 13.
  • the grindstone device 5 has a structure that can be approached or retracted with respect to the rolling roll la by the retract ⁇ / linder-11. Then, the grinding wheel device 5 is attached to the traversing frame 8 via the sliding rail 7. In other words, the retract cylinder 11 is provided as a means that allows the grinding device 5 to approach and move away from the rolling roll 1a.
  • the traversing frame 8 is slidable by a retract cylinder 11 so that the groove in the guide frame 2 attached to the rolling housing 4 moves smoothly.
  • FIG. 2 shows the rotation axis of the grinding wheel
  • FIG. 3 is a mechanism diagram showing a relationship between a rolling roll rotation axis and a tilt angle of a grinding line.
  • the inclination angle is represented by ⁇
  • the offset amount between the grinding wheel rotation axis and the grinding roll axis is represented by ⁇ 5
  • the grinding wheel radius is represented by r.
  • the offset amount ⁇ becomes equal to the grinding wheel radius r
  • the inclination angle 0 of the grinding line becomes 90 °.
  • the smaller the offset amount ⁇ the smaller the inclination angle ⁇ of the grinding line.
  • the former control method is possible if the position of the axis of rotation of the roll to be ground is known, but the position of the axis of rotation of the roll during rolling is constantly fluctuating even if the rolling schedule is the same. In addition, the mouth wears during rolling, so the position of the axis of rotation of the roll to be ground during rolling is always accurately grasped and the grinding wheel is rotated. It is difficult to change the axis.
  • the position of the axis of rotation of the rolling roll from the pass line varies in accordance with the change of the rolling roll diameter and the thickness of the exit side plate.
  • the center of the rolling roll C constantly changes in the vertical direction due to a change in the diameter of the rolling roll due to wear and a change in the thickness of the rolled material S.
  • the position of the bearing box 3 changes in the rolling housing 4.
  • the actual rolling causes more complicated positional fluctuations.
  • the sliding part since the sliding part has a pin structure, it is easy to eliminate the sliding part. That is, by using a method of mechanically changing the angle of the grinding wheel rotation axis G with respect to the horizontal plane, it is possible to mechanically always match the rotation axis C of the roll to be ground while reducing the play.
  • FIG. 1 is a partially enlarged cross-sectional view of a side surface of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 5 is a diagram illustrating a set of a grinding roll follower mechanism according to an embodiment of the present invention.
  • FIG. 3 is a plan view of the rolling mill with the online mouth grinding apparatus incorporated therein.
  • FIG. 6 is an explanatory view showing that the axis of rotation C of the roll to be ground and the axis of rotation G of the grinding wheel of the mechanism for following the roll to be ground according to the embodiment of the present invention are aligned with each other.
  • a guide is required. It is preferable that one end of the frame 2 is rotatably fixed at one end of the grinding roll, and the other end is movable up and down. With such a configuration, the angle between the sliding surface for the transverse frame 8 of the guide frame 2 and the horizontal plane changes.
  • a guide arm 6 is set on a transverse frame 8 that can be moved closer to and retracted from the groove in the guide frame 2 that is rotatably moved by the retract cylinder 11.
  • a cylindrical guide collar 9 is provided on the bearing box 3 side.
  • the guide arm 6 is connected to the grinding device 5 via a traversing frame 8.
  • the tip shape can be engaged with the outer periphery of the guide collar 9. Shape.
  • the grinding wheel rotation axis G and the grinding roller rotation axis C are aligned with each other. Make it a positional relationship. It is desirable that the center of this arc coincides with the center of the roll axis. Since the center of this arc coincides with the center of the rolling roll axis, the entire grinding device 5 is rotated around the rolling roll axis, and the inclination of the rotation axis of the grinding wheels 12 of the grinding device 5 is adjusted. And the tracking accuracy is good.
  • the center of this arc may be deviated from the center of the rolling roll axis as far as the equipment allows, but it is desirable that the center be aligned.
  • the guide collar 9 has an outer peripheral portion formed in an arc shape, and is attached to the bearing box 3.
  • a cylindrical member is provided on the outer peripheral side of the roll shaft. Since this guide collar 9 is mounted on the bearing box 3 and installed as a cylindrical member on the outer peripheral side of the roll shaft, it can be easily installed without obstructing other equipment and members.
  • the guide collar 9 is installed in the bearing box 3, but it may be mounted on a shaft or the like in consideration of equipment space. ⁇
  • the rolling roll has a simple structure.
  • the rotation center axis of the grinding wheel 12 can follow the center axis of 1a.
  • a tilt cylinder 114 is provided on the guide frame 2.
  • the tilt cylinder 14 is positioned so that the guide collar 9 and the guide arm 6 engage when the grindstone device 5 is retracted and approached again. It can also be used to make decisions.
  • the grooves in the rotatable guide frame 2 are inserted into the retractable traversing frame 8 by the retract cylinder 11
  • One piece 6 can be attached.
  • the mounting positions of the guide arm 6 are provided at both ends of the transverse frame 8 in the axial direction of the mouth.
  • the grinding wheel device 5 rises following the rise of the roll to be ground.
  • the distance between the fulcrum QR and the fulcrum QS is constant, and the distance between the fulcrum RO and the fulcrum SP changes as the angle of the grinding wheel rotation axis G with respect to the horizontal plane changes.
  • This change in the distance is achieved by pushing the transverse frame 8 in the groove of the guide frame 2 by the retract cylinder 11. Therefore, it is possible to maintain a state in which the grinding roll center of rotation C and the grinding wheel center of rotation G always coincide with each other.
  • the guide collar 9 installed in the bearing box 3 also moves by the same amount, and the guide arm 6 moves along the guide collar 9. Is slid along the arc of the guide collar 9, so that the axis of rotation C of the roll to be ground and the axis of rotation G of the grinding wheel always coincide.
  • the use of the grinding-rolling-port-following mechanism of the present embodiment makes it possible to position the rolling roll 1a vertically and in the rolling direction due to changes in rolling conditions during rolling or grinding.
  • the rotation axis C of the roll to be ground due to the fluctuation and the rotation axis G of the grinding wheel can always be matched without deviation.
  • the grinding line can be made perpendicular to the axis of rotation C of the roll to be ground, eliminating the pattern of the rolled material due to the transfer of the grinding line, and using two or more grinding wheels 12 Since the lap marks generated when the rolled material is removed can be eliminated, the surface quality of the rolled material can be improved.
  • the gap between the rolling housing 4 and the bearing box 3 can be eliminated, and the rolling roll 1 a during rolling is formed.
  • the movement in the rolling direction can be eliminated, and the thickness variation of the rolled material can be reduced.
  • the surface quality of the rolled material can be improved. Wear.
  • FIG. 7 is a partial sectional view of a main part of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 8 is a partial plan view of a main part of a rolling mill provided with a grinding device according to one embodiment of the present invention. Note that the same reference numerals in FIGS. 7 and 8 as those in other drawings indicate the same parts.
  • a cylindrical guide collar 9 is provided on the bearing box 3
  • guide arms 6 are provided at both ends of the traversing frame 8, and the guide arms 6 are pressed against the guide force rollers 9, It followed the positional change in the vertical and rolling directions of the roll to be ground.
  • a cylindrical stopper pin 15 is provided in the bearing box 3, and a guide arm 16 is similarly provided from the traversing frame 8.
  • the guide arms 16 are installed at both ends of the traversing frame 8 to avoid interference with the grindstone device 5.
  • the tip end of the guide arm 16 is the same as the outer diameter of the stopper pin 15 and the guide arm 16 is pressed against the stopper bin 1 _ 5 by the cylinder 11, so that the grinding roll followss up and down and changes in the position in the rolling direction.
  • the structure of the second embodiment is suitable for hot rolling with a relatively large roll diameter.
  • the guide collar 19 of Embodiment 1 becomes large, but in Embodiment 2, the stopper pin 15 can be installed regardless of the roll diameter.
  • the equipment can be simplified.
  • the surface quality of the rolled material can be improved.
  • FIG. 9 is a partial sectional view of a main part of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • FIG. 10 is a partial plan view of a main part of a rolling mill provided with a grinding device according to one embodiment of the present invention.
  • the same reference numerals as those in the other drawings denote the same parts.
  • the device configuration of one embodiment of the present invention is as follows.
  • the wheel unit 5 is connected to and mounted on a sliding rail 7 provided so as to be able to move the grinding wheel device 5 from one side to the other side in the axial direction of the rolling roll 1a. Attached to.
  • the traversing frame 8 is fixed to the rolling housing 4 by cylinders 17a and 17b, and can approach and retreat.
  • the cylinder 17a is rotatably fixed to the traverse frame 8 side with the pin 20a as a fulcrum and the rolling housing 4 side with the pin 21a as a fulcrum.
  • the cylinder 17b is rotatably fixed to the traverse frame 8 side with the pin 20b as a fulcrum and the rolling housing 4 side with the pin 21b as a fulcrum.
  • the fulcrums of the pins 20a, 21a, 20b, 21b for fixing the cylinders 17a and 17b are provided so as to form a parallelogram.
  • the distance between the fulcrums of pins 20a and 2Ob (the side of the traversing frame 8) is equal to the distance between the fulcrums of the pins 21a and 21b (the side of the rolling housing 4), and at the same time, the cylinder 17a And 17b should always be the same length.
  • the mechanism that follows the vertical and rolling position fluctuations of the milling roll is provided with cylindrical stopper pins 18 at two locations on the bearing box 3 and a guide arm 1 on the traverse frame 8. 9 is installed.
  • the guide arm 19 is used to prevent interference with the grindstone device 5. It is installed at both ends of the room 19. At this time, the tip of the guide arm 19 is the same as the outer diameter of the stopper pin 18. Also, the guide frame 19 is pressed against the stopper pin 18 by the cylinders 17a and 17b to prevent the traversing frame 8 from moving up and down. Therefore, it is desirable that the tip of the guide arm 19 be shaped so as to sandwich the stopper pin 18 vertically. .
  • a tilt cylinder 14 is provided on the traversing frame 8.
  • the tilt cylinder 14 is also used to position the stopper pin 18 and the guide arm 19 so as to engage with each other when the grindstone device 5 is retracted and approached again. In this mechanism, since all the portions supporting the traversing frame 8 on the rolling housing 4 are cylinder fulcrum pins, smooth movement with little backlash can be realized.
  • a taper stopper 22 and a taper arm 2 are used instead of the stopper pin 18 and the guide arm 19, instead of the stopper pin 18 and the guide arm 19, a taper stopper 22 and a taper arm 2 are used. As shown in Fig. 3, it is also possible to use a shape that makes contact only with an angled surface (the taper stopper 22 may be divided).
  • the two stop pins 18 and the guide arm 19 are pressed by the cylinders 17a and 17b so that they are always in contact with each other, and the upper and lower cylinders 17 are pressed so that they are the same length.
  • the grinding device 5 follows the grinding and rolling roll 1a.
  • the rotational axis C of the roll to be ground and the rotational axis G of the grinding wheel can be in a positional relationship such that they are on the same plane. -The rotation axis C of the roll to be ground and the rotation axis G of the grindstone can always coincide with each other with respect to the fluctuation of the position of the roll 1a in the vertical and rolling directions. The surface quality of the rolled material can be improved.
  • the surface quality of the rolled material can be improved.
  • the present invention relates to a roll grinding device, a roll grinding method, a rolling mill provided with a roll grinding device, and a rolling method of a rolling mill provided with a mouth grinding device, and can improve the surface quality of a rolled material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

Techniques de rectification mettant en application une meule rectifiant un rouleau de laminage. Les axes médians de rotation du rouleau de laminage et de la meule sont situés dans un seul plan, la prolongation de l'axe médian de rotation de la meule et l'axe médian de rotation du rouleau de laminage viennent en intersection l'un par rapport à l'autre et ne sont pas décalés l'un par rapport à l'autre. Un dispositif servant à déplacer le dispositif de rectification autour de l'axe de rotation du rouleau de laminage permet de régler un angle de la meule par rapport à un plan vertical ou un dispositif suiveur servant à suivre le dispositif de rectification est situé sur l'axe de rotation du rouleau de laminage, de sorte que l'axe de rotation du rouleau de laminage et l'axe de rotation de la meule sont situés dans un même plan pendant l'opération de rectification, ce qui permet de limiter l'inclinaison de la surface de rectification, de manière à améliorer la qualité de la surface du matériau de laminage.
PCT/JP2000/001651 2000-03-17 2000-03-17 Dispositif et procede de rectification, laminoir possedant ce dispositif et procede de laminage WO2001070455A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2001568696A JP3870784B2 (ja) 2000-03-17 2000-03-17 ロール研削装置，ロール研削方法，ロール研削装置を備えた圧延機、並びにロール研削装置を備えた圧延機の圧延方法
PCT/JP2000/001651 WO2001070455A1 (fr) 2000-03-17 2000-03-17 Dispositif et procede de rectification, laminoir possedant ce dispositif et procede de laminage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/001651 WO2001070455A1 (fr) 2000-03-17 2000-03-17 Dispositif et procede de rectification, laminoir possedant ce dispositif et procede de laminage

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Publication Number Publication Date
WO2001070455A1 true WO2001070455A1 (fr) 2001-09-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825070A (zh) * 2012-09-14 2012-12-19 南京钢铁股份有限公司 一种夹送辊至吐丝机可调式对中装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5828705U (ja) * 1981-08-18 1983-02-24 石川島播磨重工業株式会社 圧延ロ−ルの研削装置
JPH06262236A (ja) * 1993-03-10 1994-09-20 Hitachi Ltd ロール表面研削装置を備えた圧延設備及びそのロール研削方法並びにその使用方法
JPH0739910A (ja) * 1993-07-28 1995-02-10 Mitsubishi Heavy Ind Ltd オンラインロール研削装置
US5562525A (en) * 1992-06-03 1996-10-08 Hitachi, Ltd. Rolling mill equipped with on-line roll grinding system and grinding wheel
JPH0966306A (ja) * 1995-06-20 1997-03-11 Ishikawajima Harima Heavy Ind Co Ltd オンラインロール研削装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5828705U (ja) * 1981-08-18 1983-02-24 石川島播磨重工業株式会社 圧延ロ−ルの研削装置
US5562525A (en) * 1992-06-03 1996-10-08 Hitachi, Ltd. Rolling mill equipped with on-line roll grinding system and grinding wheel
JPH06262236A (ja) * 1993-03-10 1994-09-20 Hitachi Ltd ロール表面研削装置を備えた圧延設備及びそのロール研削方法並びにその使用方法
JPH0739910A (ja) * 1993-07-28 1995-02-10 Mitsubishi Heavy Ind Ltd オンラインロール研削装置
JPH0966306A (ja) * 1995-06-20 1997-03-11 Ishikawajima Harima Heavy Ind Co Ltd オンラインロール研削装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825070A (zh) * 2012-09-14 2012-12-19 南京钢铁股份有限公司 一种夹送辊至吐丝机可调式对中装置

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