EP2408593B1 - Procédé et dispositif pour le meulage d'un produit de coulée continue - Google Patents

Procédé et dispositif pour le meulage d'un produit de coulée continue Download PDF

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Publication number
EP2408593B1
EP2408593B1 EP10710549A EP10710549A EP2408593B1 EP 2408593 B1 EP2408593 B1 EP 2408593B1 EP 10710549 A EP10710549 A EP 10710549A EP 10710549 A EP10710549 A EP 10710549A EP 2408593 B1 EP2408593 B1 EP 2408593B1
Authority
EP
European Patent Office
Prior art keywords
grinding
continuous casting
casting product
slab
long side
Prior art date
Legal status (The legal status 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 status listed.)
Not-in-force
Application number
EP10710549A
Other languages
German (de)
English (en)
Other versions
EP2408593A1 (fr
Inventor
Karl Robert Hofmann
Günter Schiller
Andreas Leukel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amova GmbH
Original Assignee
SMS Logistiksysteme GmbH
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 SMS Logistiksysteme GmbH filed Critical SMS Logistiksysteme GmbH
Publication of EP2408593A1 publication Critical patent/EP2408593A1/fr
Application granted granted Critical
Publication of EP2408593B1 publication Critical patent/EP2408593B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/005—Portal grinding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • B24B27/04—Grinding machines or devices in which the grinding tool is supported on a swinging arm

Definitions

  • the invention relates to a method for grinding a continuous casting product, in particular a slab, wherein the continuous cast product in cross section has a rectangular contour with two opposite long sides and two opposite short sides, wherein at least the long sides are subjected to surface treatment by means of at least one grinding tool. Furthermore, the invention relates to a device for grinding a continuous casting product.
  • Continuously cast products in particular slabs, are subjected to surface finishing by grinding after continuous casting in order to achieve a sufficient quality in the further processing of the product.
  • the slab is usually reciprocated in the longitudinal direction in a reversing motion under a grinding device (grinding aggregate). At the end of each reversing movement, the grinder performs a stepwise cross-feed motion until the entire slab surface is ground.
  • the slab is stored on a grinding table lying on its long broad side.
  • FIG. 1 A generic prior art apparatus for grinding slabs is in Fig. 1 shown. It is similar to the one in the EP 0 053 274 A1 is described.
  • the device has a grinding table 13 and a grinding device 9 with drive motor 10 and grinding wheel 6.
  • the slab 1 has in a known manner two long sides 2 and 3 (broad sides) and two short sides 4 and 5 (narrow sides). It lies with one of its long side 3 on the grinding table 13.
  • the grinding table 13 reversibly moves under the grinding device 9 in the direction perpendicular to the plane of the drawing.
  • the grinding wheel 6 is pressed by means of a grinding pressure cylinder 14 against the upper side of the slab 1.
  • the slab 1 is thus moved by means of the grinding table 13 relative to the grinding device 9 in the longitudinal direction back and forth.
  • the grinding device 9 performs by means of a feed cylinder 15 a stepwise cross-feed movement until the top of the slab is finished ground.
  • the slab 1 has a minimum area moment of inertia in its position with the broad side on the grinding table 13 about an axis which is horizontal and transverse to the slab longitudinal axis. Accordingly, the resistance to bending about this axis is minimal.
  • the grinding table 13 is provided at defined intervals along the longitudinal axis of the slab 1 with supports 16, which are intended to minimize the bending of the slab. The number of copies 16 is selected to be correspondingly high.
  • Another problem is that it can lead to significant caking of grinding chips on the device, if the flight of chips during grinding is not optimally maintained. Therefore, in prior art solutions, a relatively high maintenance effort is required to keep the device in optimal condition of use.
  • the invention is therefore based on the object to provide a method and an associated device, with which or with which it is possible to achieve in a relatively lightweight construction, that the deflection of the continuous casting product, in particular the slabs is minimized. This should also optimize the quality of the grinding process. Furthermore, it should be achieved that the grinding of the continuous casting product can be carried out in an efficient and rapid manner, so that the grinding can be carried out economically. Furthermore, the aim is to design the method or the device such that a removal of the grinding chips can take place in an improved manner. As a result, in particular caking chips are to be reduced to the device.
  • the solution of this object by the invention is characterized in that when controlling a long side of the continuous casting product, the continuous casting product is positioned by means of a receptacle such that the surface normal to the long side of the continuous casting product with the vertical includes an acute angle greater than zero degrees ,
  • the angle between the surface normal and the vertical is preferably between 30 ° and 90 °.
  • One embodiment provides an angle between 40 ° and 75 °.
  • a preferred embodiment provides that the angle between the surface normal and the vertical is 90 ° ("vertically arranged slab").
  • a refinement provides that both a long side and a short side are ground by means of the at least one grinding tool in one layer of the continuous casting product on the receptacle. This eliminates a separate grinding unit for grinding the short or narrow side.
  • “vertically arranged slab” can be provided in a particularly advantageous manner that the two opposite long sides of the continuous casting product are simultaneously ground by means of at least two grinding tools.
  • the continuous casting product can be positioned by means of a receptacle in the form of a holding frame during grinding in a hanging manner.
  • the long side of the continuous casting product is usually at least twice as long as the short side, often even more than twice as long.
  • the proposed apparatus for grinding a continuous casting product has at least one grinding device with at least one grinding tool for grinding at least one long side of the continuous casting product and is characterized in that the device comprises a receptacle designed to position the continuous casting product during grinding in such a way in that the surface normal to the long side of the continuous cast product with the vertical includes an acute angle greater than zero degrees, preferably an angle between 30 ° and 90 °.
  • the apparatus may also comprise two grinding devices, each having at least one grinding tool, which are designed and provided for the simultaneous processing of the two opposite long sides of the continuous casting product.
  • the intake for the continuous casting product may have a contact surface for a long side of the continuous casting product and a contact surface for a short side of the continuous casting product.
  • the receptacle comprises a holding frame with which the continuous casting product can be positioned in a hanging manner.
  • the invention is based on the recognition that the area moment of inertia of the continuous casting product, in particular the slab, increases by a horizontal transverse axis and thus the resistance to deflections when the continuous casting product is inclined in the longitudinal direction on its narrow side.
  • the chip flight is also steered more directly than in the horizontal storage in the chip collection box, d. H. optimized.
  • the risk of caking is thus reduced.
  • the chip collection box can therefore be made smaller advantageously. So it comes in an advantageous manner to a targeted flurse-side oriented flying sparks and thus the use of a simpler chip collection box.
  • the slab is due to their high weight on their respective narrow side at a certain angle whose preferred range is given, so that only a few editions required are.
  • Another advantage of the proposed solution, especially at higher slab temperatures, is that the broad sides of the slab can be inspected directly from close to the side.
  • a device for grinding a slab 1 is shown, which operates according to the invention.
  • the slab 1 has a rectangular cross-section which is in Fig. 2 you can see; the slab 1 extends with its longitudinal axis in the direction perpendicular to the plane of the drawing.
  • the slab 1 accordingly has two long sides 2 and 3 and two short sides 4 and 5.
  • the long sides 2, 3 are usually at least twice as long as the short sides 4, 5, usually much longer.
  • the slab surface must be processed by means of a grinding process in order finally to be able to produce a product of sufficient quality from the slab by means of a subsequent rolling process.
  • a Schleifvorrichtüng is provided by the in Fig. 2 only the grinding wheel 6 is sketched. The arrow indicates the direction of rotation of the grinding wheel 6 during its operation.
  • the known grinding process is performed, d. H.
  • the grinding table 13 oscillates in the direction of the longitudinal axis of the slab 1 (thus in the direction perpendicular to the drawing plane) back and forth, while the grinding wheel 6 at each stroke or double stroke of the grinding table 13 a certain amount transversely to the width direction of the slab 1 is continued.
  • the receptacle 7 in the present case has a contact surface 11, consisting of mutually spaced struts, for the long side 3 and a contact surface 12 for the short side 4.
  • Chip breakage is indicated by the reference number 18 indicated by the dashed line.
  • a baffle 19 may be provided to affect the chip clearance 18.
  • the slab 1 thus processed may be a hot slab. Due to their higher temperature, the proposal according to the invention comes into its own, as here the bending of the slab is a particularly relevant topic.
  • FIG. 3 A concrete embodiment of a device for grinding a slab 1, in which the various devices are shown, in the schematic representation according to Fig. 2 have been omitted is the Fig. 3 refer to. In principle, the same thing applies here, too Fig. 2 was said.
  • the slab 1 is here, however, employed a little further obliquely, than at Fig. 2 the case is.
  • the surface normal 8 with the direction of the vertical V encloses an angle ⁇ which is about 75 °.
  • the grinding device 9 has a drive motor 10 for the grinding wheel 6 with which it is driven.
  • the grinding wheel 6 is delivered or pressed in the processing of the slab 1 by a grinding pressure cylinder 14 normal to the slab surface.
  • the stepwise movement of the grinding wheel 6 over the width of the long side 2 of the slab 1 is accomplished by a feed cylinder 15.
  • a chip collecting box 17 is arranged below the device.
  • Fig. 4 is a variation of the solution according to Fig. 2 to see.
  • both the long side of the slab and the short side are ground. In this case, usually two separate grinding devices are used.
  • the long side is ground with a powerful main unit.
  • an auxiliary unit with lower power can be installed.
  • the grinding wheel 6 is sketched here in two different positions. In the lower position, the grinding of the long side 2 of the slab is as in Fig. 2 explained. However, after grinding the long side 2, the grinding wheel 6 is also guided over the upper short side 5 in order to grind it in the illustrated positioning of the slab 1 on the receptacle 7. This is indicated by the upper layer of the grinding wheel 6. In order for the grinding chips to be able to be conducted downwards into the chip collection box (not shown) in this case, it is provided for the grinding of the short side 5 that the direction of rotation of the grinding wheel 6 is changed (see arrows). To guide the chips baffles 19 are also provided here.
  • the main unit is modified so that both the grinding of the long side and the grinding of the short side is possible. On a separate accessory can thus be dispensed with. For this purpose, both directions of movement of the grinding unit must be equipped with a grinding pressure control.
  • the concept proposed according to the invention also includes an arrangement of the slab 1 during grinding, so that the angle between the surface normal 8 on the long side 2 of the slab 1 with the vertical V encloses a right angle.
  • This is in Fig. 5 shown.
  • the slab is thus arranged vertically edgewise.
  • This has the particular advantage that here in a particularly simple manner, the two long sides 2 and 3 can be ground simultaneously, which a corresponding time reduction of the processing of the slab 1 allows.
  • the slab 1 here is otherwise - which is not mandatory, but is preferred - hanging, d. H.
  • the receptacle 7 is here designed as a frame-like structure, the slab 1 at its lower and upper side, d. H. on the short sides 4, 5, clamps and holds in the position shown.
  • the grinding table 13 is accordingly arranged in the upper region of the device.
  • alternatively arranged in a clamping frame slab 1 can also be set up with a short side in the manner shown on a grinding table and processed as explained above.
  • the grinding devices 9, 9 ' are equipped with the required actuating elements (hydraulic piston-cylinder systems) in order to be able to guide the grinding wheels 6, 6' vertically along the long sides 2, 3.
  • actuating elements hydroaulic piston-cylinder systems
  • a vibrating conveyor 20 is arranged, with which the chips can be promoted for disposal.
  • the chip flight 18 is optimized in such a way that the chips are conducted directly into the chip collecting box 17 arranged below the machine.
  • a device-technical advantage continues to be that in "vertical arrangement" of the slab can be provided that both grinding devices 9, 9 'can be arranged in a common cabin or Eirihausung. Furthermore, the inspection of the grinding result is easier.
  • the grinding devices 9, 9 ' are arranged such that they can be swiveled away or moved sideways from the slab.
  • the grinding devices are usually equipped with hot-pressed grinding wheels 6.
  • the drive power as well as the diameter and the width of the grinding wheel 6 are limited by the resulting from the manufacturing process of the disc strength thereof. Therefore, for the most part, grinding wheels with a diameter of, for example, 915 mm and a width of, for example, 150 mm are used, which requires motor drive powers which, for example, amount to 315 kW.
  • a higher throughput can theoretically be achieved with wider grinding wheels and higher engine power, which, however, has its limitations. Any widening of the grinding wheel is not possible due to the manufacturing process of the wheels and the strength of the binder for the abrasive grains.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Claims (13)

  1. Procédé de rectification d'un produit coulé en continu (1), notamment d'une brame, ce produit coulé en continu présentant en section transversale un contour de forme rectangulaire avec deux côtés longs opposés (2, 3) et deux côtés courts opposés (4, 5), au moins les côtés longs (2, 3) étant soumis au moyen d'au moins un outil de rectification (6) à un usinage de surface,
    caractérisé en ce que,
    lors de la rectification d'un côté long (2, 3) du produit coulé en continu (1), le produit coulé en continu (1) est positionné au moyen d'un support (7) de manière à ce que la normale de la surface (8) sur le côté long (2, 3) du produit coulé en continu (1) décrive avec la verticale (V) un angle aigu (α) supérieur à zéro degré.
  2. Procédé selon la revendication 1, caractérisé en ce que l'angle (α) entre la normale de la surface (8) et la verticale (V) est compris entre 30° et 90°.
  3. Procédé selon la revendication 1, caractérisé en ce que l'angle (α) entre la normale de la surface (8) et la verticale (V) est compris entre 40° et 75°.
  4. Procédé selon la revendication 1, caractérisé en ce que l'angle (α) entre la normale de la surface (8) et la verticale (V) est de 90°.
  5. Procédé selon une des revendications 1 à 4, caractérisé en ce que, au moyen de l'au moins un outil de rectification (6), dans une position du produit coulé en continu (1) sur le support (7), aussi bien un côté long (2, 3) qu'un côté court (4, 5) est rectifié.
  6. Procédé selon la revendication 4, caractérisé en ce que les deux côtés opposés (2) du produit coulé en continu (1) sont rectifiés simultanément au moyen d'au moins deux outils de rectification (6, 6').
  7. Procédé selon la revendication 6, caractérisé en ce que le produit coulé en continu (1) est positionné au moyen d'un support (7) se présentant sous forme d'un cadre de retenue pendant la rectification en suspension.
  8. Procédé selon les revendications 1 à 7, caractérisé en ce que le côté long (2, 3) du produit coulé en continu (1) est au moins deux fois plus long que le côté court (4, 5) du produit coulé en continu (1).
  9. Dispositif de rectification d'un produit coulé en continu (1), notamment d'une brame, ce produit coulé en continu (1) présentant en section transversale un contour de forme rectangulaire avec deux côtés longs opposés (2, 3) et deux côtés courts opposés (4, 5), ce dispositif présentant au moins un dispositif de rectification (9) comportant au moins un outil de rectification (6) permettant de rectifier au moins un coté long (2, 3) du produit coulé en continu (1), notamment pour la réalisation du procédé selon les revendications 1 à 8,
    caractérisé en ce que,
    le dispositif comprend un support (7) qui est conçu pour positionner le produit coulé en continu (1) pendant la rectification de manière à ce que la normale de la surface (8) sur le côté long (2, 3) du produit coulé en continu (1) décrive avec la verticale (V) un angle aigu (α) supérieur à zéro degré.
  10. Dispositif selon la revendication 9, caractérisé en ce que l'angle (α) entre la normale de la surface (8) et la verticale (V) est compris entre 30° et 90°.
  11. Dispositif selon la revendication 9 ou 10, caractérisé en ce qu'il présente deux dispositifs de rectification (9, 9') équipés chacun d'au moins un outil de rectification (6, 6') et qui sont conçus et prévus pour usiner simultanément les deux côtés longs opposés (2, 3) du produit coulé en continu (1).
  12. Dispositif selon une des revendications 9 à 11, caractérisé en ce que le support (7) présente une surface d'appui (11) pour un côté long (2, 3) du produit coulé en continu (1) et une surface d'appui (12) pour un côté court (4, 5) du produit coulé en continu (1).
  13. Dispositif selon une des revendications 9 à 12, caractérisé en ce que le support (7) englobe un cadre de retenue qui permet de positionner le produit coulé en continu (1) en suspension.
EP10710549A 2009-03-19 2010-03-19 Procédé et dispositif pour le meulage d'un produit de coulée continue Not-in-force EP2408593B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009013481 2009-03-19
PCT/EP2010/001731 WO2010105839A1 (fr) 2009-03-19 2010-03-19 Procédé et dispositif pour le meulage d'un produit de coulée continue

Publications (2)

Publication Number Publication Date
EP2408593A1 EP2408593A1 (fr) 2012-01-25
EP2408593B1 true EP2408593B1 (fr) 2013-02-20

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ID=42173654

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10710549A Not-in-force EP2408593B1 (fr) 2009-03-19 2010-03-19 Procédé et dispositif pour le meulage d'un produit de coulée continue
EP10711335A Not-in-force EP2408594B1 (fr) 2009-03-19 2010-03-19 Dispositif de rectification d'un semi-produit de coulée continue

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10711335A Not-in-force EP2408594B1 (fr) 2009-03-19 2010-03-19 Dispositif de rectification d'un semi-produit de coulée continue

Country Status (15)

Country Link
US (2) US8708775B2 (fr)
EP (2) EP2408593B1 (fr)
JP (2) JP5645912B2 (fr)
KR (2) KR20110135389A (fr)
CN (4) CN201769086U (fr)
BR (2) BRPI1009129A2 (fr)
CA (2) CA2755813A1 (fr)
ES (1) ES2409945T3 (fr)
MX (2) MX2011007958A (fr)
MY (1) MY159173A (fr)
PL (1) PL2408594T3 (fr)
RU (2) RU2011142149A (fr)
TW (2) TWI490061B (fr)
UA (1) UA106488C2 (fr)
WO (2) WO2010105839A1 (fr)

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CN106584239B (zh) * 2016-12-07 2018-11-02 杭州正驰达精密机械有限公司 一种机械手表摆锤的自动磨削机床
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TW201843008A (zh) * 2017-04-27 2018-12-16 美商康寧公司 用於光耦合之玻璃邊緣處理
CN107817752B (zh) * 2017-09-19 2024-01-30 芜湖安普机器人产业技术研究院有限公司 一种铜板水平连铸的自动化上料装置电气控制系统
CN107953218A (zh) * 2017-12-21 2018-04-24 广东德新科技孵化器有限公司 一种家具板材用双面打磨装置
CN111644952B (zh) * 2020-07-07 2021-06-04 南京溧水高新产业股权投资有限公司 一种便捷浇筑水泥柱棱角打磨设备
CN112405295B (zh) * 2020-11-03 2023-01-31 南宁学院 一种艺术加工用抛光工具
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JP2012520773A (ja) 2012-09-10
JP5645912B2 (ja) 2014-12-24
CN201769086U (zh) 2011-03-23
EP2408594B1 (fr) 2013-03-06
US8708775B2 (en) 2014-04-29
CN102387893A (zh) 2012-03-21
JP2012520776A (ja) 2012-09-10
WO2010105838A1 (fr) 2010-09-23
CN102369085A (zh) 2012-03-07
MX2011007398A (es) 2011-08-03
CN102387893B (zh) 2015-01-28
ES2409945T3 (es) 2013-06-28
PL2408594T3 (pl) 2013-08-30
WO2010105839A1 (fr) 2010-09-23
EP2408593A1 (fr) 2012-01-25
KR20110129376A (ko) 2011-12-01
CN102369085B (zh) 2016-08-24
TW201039942A (en) 2010-11-16
KR20110135389A (ko) 2011-12-16
CA2755304A1 (fr) 2010-09-23
RU2011142149A (ru) 2013-04-27
RU2011142166A (ru) 2013-04-27
MY159173A (en) 2016-12-30
MX2011007958A (es) 2011-08-17
EP2408594A1 (fr) 2012-01-25
TW201036760A (en) 2010-10-16
US8900035B2 (en) 2014-12-02
BRPI1009125A2 (pt) 2016-03-01
US20120022681A1 (en) 2012-01-26
CA2755813A1 (fr) 2010-09-23
CN201799915U (zh) 2011-04-20
UA106488C2 (uk) 2014-09-10
BRPI1009129A2 (pt) 2019-03-06
TWI490061B (zh) 2015-07-01
RU2553787C2 (ru) 2015-06-20
US20110281505A1 (en) 2011-11-17

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