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WO2018189239A1 - Dispositif et procédé pour polir une surface - Google Patents

Dispositif et procédé pour polir une surface Download PDF

Info

Publication number
WO2018189239A1
WO2018189239A1 PCT/EP2018/059286 EP2018059286W WO2018189239A1 WO 2018189239 A1 WO2018189239 A1 WO 2018189239A1 EP 2018059286 W EP2018059286 W EP 2018059286W WO 2018189239 A1 WO2018189239 A1 WO 2018189239A1
Authority
WO
WIPO (PCT)
Prior art keywords
polishing
polishing head
nozzle bar
strip
nozzles
Prior art date
Application number
PCT/EP2018/059286
Other languages
German (de)
English (en)
Inventor
Dieter Bader
Original Assignee
Berndorf Band 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 Berndorf Band Gmbh filed Critical Berndorf Band Gmbh
Publication of WO2018189239A1 publication Critical patent/WO2018189239A1/fr

Links

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
    • B24B7/10—Single-purpose machines or devices
    • B24B7/12—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • 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
    • B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09G—POLISHING COMPOSITIONS; SKI WAXES
    • C09G1/00—Polishing compositions
    • C09G1/02—Polishing compositions containing abrasives or grinding agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1454—Abrasive powders, suspensions and pastes for polishing

Definitions

  • the invention relates to a device for polishing a surface of a strip of metal, in particular an endless belt, wherein the device comprises at least one polishing head for polishing the surface.
  • the invention relates to a method for polishing the surface of a strip of metal, in particular an endless metal belt.
  • a polishing cloth For polishing a surface of a metal strip usually a polishing cloth is stretched over a polishing plate and soaked with a polishing agent and then passed over the metal surface with moderate pressure at a rotating or eccentrically moving polishing plate.
  • the device has at least one nozzle bar with a plurality of nozzles for spraying a liquid, wherein outflow openings of the nozzle in the direction of a plane in which in an operating state of the device, the surface of the tape lie comes, wise.
  • the solution according to the invention makes it possible to polish in a simple and time-saving manner and at the same time to enable protection of the strip against contamination during polishing and thereafter.
  • a curtain of liquid can be realized, which is a polishing area in which the polishing takes place from other areas of the Bandes separates.
  • the device can have an actuator connected to the at least one polishing head for a horizontal displacement of the polishing head.
  • a simple adjustment of the device prior to polishing as well as an adjustment of the polishing pressure can be realized in that the device has at least one actuator for raising and lowering the at least one polishing head.
  • the device has at least one cross member and the at least one polishing head is displaceably mounted on the cross member in a longitudinal direction of the cross member.
  • a particularly good polishing result can be achieved in that the polishing head has a motor and a rotary shaft connected to the motor, wherein a polishing plate is arranged on an end of the rotary shaft facing away from the motor.
  • the polishing plate rotates during the polishing process, whereby a particularly homogeneous surface can be achieved after polishing.
  • the nozzles of the at least one nozzle bar can be arranged to be pivoted in the direction of the at least one polishing head.
  • the device at least a second nozzle bar with a plurality of nozzles for spraying the liquid wherein the at least one polishing head is arranged between the two nozzle bars.
  • the at least one polishing head can be arranged on a first side of the plane in which the surface of the metal strip to be polished comes to lie in an operating state of the device Side opposite side, this level at least one support, in particular in the form of a brush carpet, is arranged for the band.
  • the apparatus may comprise at least a third nozzle bar, wherein a longitudinal extension of the at least one third nozzle bar parallel or oblique to the direction of horizontal displacement of the at least one Polishing head runs.
  • the device has at least one fourth nozzle bar arranged behind the third nozzle bar viewed from the direction of the at least one polishing head.
  • nozzles of the third nozzle bar are arranged pointing away from nozzles of the fourth nozzle bar and vice versa, or that the nozzles of the third nozzle bar and the nozzles of the fourth nozzle bar point in the same direction.
  • an area can be created in between the two above-mentioned nozzle bars, in which the penetration of contaminants is impeded and in which the surface of the liquid film is calmed, in order to allow a complete skimming of any polishing residues floating on the liquid film.
  • an air knife can be arranged behind a last nozzle bar of the device viewed from the direction of the at least one polishing head.
  • step i) preceding, subsequent or simultaneously with step i) carried out step ii) applied a polishing agent and polished in a step iii) by means of at least one polishing head of the portion to be polished surface of the belt, while the band under the at least a polishing head passes through, wherein viewed in a direction of movement of the belt after the polishing head at least one liquid curtain of the cleaning liquid is generated which obliquely inclined towards the polishing head or at an angle of 90 ° on the surface of the belt.
  • the method according to the invention makes it possible in a simple manner to wash and polish the strip at the same time, wherein the liquid curtain makes it difficult to cross over polishing residues into areas of the strip adjoining a polishing area.
  • provision may be made in a step iv), in the direction of movement of the strip, after the liquid curtain, to scoop off residues of the polishing medium on a liquid film located on the surface of the strip.
  • step v) the liquid film freed from the residues is calmed.
  • step vi) the surface of the strip is dried in step vi) by means of an air knife.
  • the polishing agent used in step ii) can be an aqueous dispersion which has an abrasive solid with particle sizes of 70-500 nm, in particular with a particle size of 120 nm, the dispersion containing iron oxide as an abrasive solid, and having a pH of 0-1.
  • This variant makes it easy to polish large areas of bands of metal, such as steel strips. Due to the different particle sizes of the abrasive solid in the aqueous dispersion, a desired friction can be generated on the surface of the steel strip. As a result, roughnesses in the nm range can be compensated.
  • particle sizes of the abrasive solid which lead to an optimum result of the polishing of the metal strip, such as e.g. a particle size of 120 nm. Due to the smaller particle sizes, a better distribution of the polishing agent on the steel strip can be made and thus larger areas can be treated. For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
  • FIG. 1 shows a perspective view of a device according to the invention.
  • a device 1 for polishing a surface 2 of a strip 3 made of metal, in particular an endless belt has polishing heads 4, 5 for polishing the surface 2.
  • the device 1 comprises a nozzle bar 6 with a plurality of nozzles 7 for spraying a liquid. Outflow openings of the nozzles 7 point in the direction of
  • the nozzles 7 of the nozzle bar 6 can be arranged in the direction of the at least one polishing head 4, 5 pivoted.
  • the device 1 is preferably mobile and is characterized by a simple and compact structure, so that it can be easily transported.
  • the device 1 with the polishing heads 4, 5 connected actuators 8, 9 for a horizontal displacement of the polishing heads 4, 5. for raising and lowering of the at least the polishing heads 4, 5 actuators 10 may also be provided.
  • the actuators 8, 9, 10 are designed as linear motors or as piston / cylinder units, in particular as hydraulic cylinders.
  • the actuators 8, 9, which are used for the horizontal displacement of the polishing heads 4, 5, be designed as linear motors
  • the actuators 10, which are used for lowering and raising the polishing heads 4, 5 used as a piston / Cylinder unit can be formed.
  • all other possible types of actuators are conceivable to allow a shifting and lifting of the polishing heads 4, 5.
  • the polishing heads 4, 5 are arranged on a first side of the plane in which the surface 2 of the strip 3 to be polished comes to rest in an operating state of the device, wherein at least one side of this plane opposite the first side is at least one not shown here Support, in particular in the form of a brush carpet, may be arranged for the band 3.
  • the polishing heads 4, 5 may also be displaceably mounted on a cross member 11 of the device 1 in a longitudinal direction of the at least one cross member 11.
  • the cross member 11 may, as shown here, be part of a portal. Alternatively, the cross member 11 be designed as only one side attached to a vertical support arm. Instead of the use of a cross member 11 shown here, however, it is also possible to arrange the polishing heads 4, 5 on a respective robotic arm. It should also be noted at this point that instead of using two or more polishing heads 4, 5, only a single polishing head can be used.
  • the use of two polishing heads 4, 5 has the advantage that the displacement paths of the individual polishing heads 4, 5 are shorter in the direction of a width of the band 3, and that the time required for polishing is reduced.
  • a longitudinal extent of the nozzle bar 6 runs parallel or obliquely to the direction of a horizontal displacement of the at least one polishing head 4, 5.
  • Each polishing head 4, 5 may comprise a motor and a rotary shaft connected to the motor, wherein a polishing plate 12, 13 is arranged on a remote from the motor end of the rotary shaft.
  • Each polishing plate 12, 13 may comprise a shaft-shaped portion and a plate-shaped portion.
  • the polishing plate 12, 13 may comprise an axially extending channel for guiding a polishing agent.
  • the polishing plate 12, 13 may have a plurality of peripheral openings which are connected to the axial channel.
  • the axial channel can be connected to the peripheral openings by radially extending channels.
  • the peripheral openings are connected via hoses with the axial channel. The peripheral openings can be easily formed over the open ends of said tubes.
  • a polishing cloth On the plate-shaped portion of the polishing plate 12, 13 may be attached a polishing cloth.
  • a polishing cloth For example, this can be applied by means of a hook and loop fastener.
  • the polishing cloth can be woven, for example.
  • the polishing cloth can also be made in the form of a knitted fabric, a knitted fabric, a braid or a nonwoven fabric.
  • the polishing agent may be carried out as a dispersion containing at least one finely divided abrasive solid having a particle size between 70-500 nm, but preferably 120 nm be.
  • the abrasive particles used are preferably metal oxide particles.
  • the abrasive particles may be formed by iron oxide and / or other metal oxides such as copper oxide.
  • the dispersion may have a pH of 0-1 and contain nitric acid.
  • the solids content of the dispersion may be between 0.1% -10%, but preferably between 1% and 4%.
  • the dispersion is applied by means of the polishing cloth, as a polish carrier on the tape.
  • the polishing medium carrier By, rotating movements of the polishing medium carrier, the abrasive particles of the polishing agent are moved relative to the surface of the metal strip, resulting in a removal of material from the surface to be polished of the strip.
  • the average spacing of the fibers is between 6 and 10 ⁇ m, in particular 8 ⁇ m. Not only does this make it possible for a polishing agent to be included between the fibers of the polishing cloth, but the polishing agent can pass between the fibers if the average spacing of the fibers is sufficiently large.
  • polishing cloth with the workpiece to be polished has a sufficiently high number of points of contact and the polishing process can be done on the one hand relatively evenly, on the other hand, but also comparatively quickly.
  • the fibers have 5 to 20%, in particular 9 to 13%, of the total volume of the polishing cloth and / or the basis weight of the polishing cloth 1 in the range of 200 g / m 2 to 400 g / m 2 , in particular in the range of 250 g / m 2 to 350 g / m 2 .
  • the fibers are finer than 1 dtex.
  • the usually used very small abrasive particles arrange very well between the fibers. It is advantageous if abrasive particles are used whose particle size is in the range from 50 to 500 nm (in particular in the range from 80 to 160 nm) and is preferably 120 nm. For a good polishing result, it is also advantageous if the ratio between a fiber fineness of the fibers and a particle size of an abrasive particle is between 0.5 dtex / ⁇ and 13 dtex / ⁇ .
  • the particle size describes the size of individual particles in a batch, and in particular for irregular particles such as the abrasive particles, the particle size can also be described by an equivalent diameter, whereby a property of the abrasive particles is determined and related to spherical particles having the same property.
  • the hole size of a sieve can be used to determine the grain size.
  • the fibers consist of a synthetic material, in particular of polyester and / or polyamide.
  • Polyester and polyamide are readily available materials with the required material properties, which makes the polishing cloth comparatively easy to manufacture.
  • polishing agent which is supplied via a channel is thrown to the outside and distributed on the surface 2 of the strip 3 to be polished. In this way, it is ensured that polishing agent is present at any time between the surface to be polished and the polishing cloth when the polishing plate 12, 13 is guided over the surface 2. In addition, polish may also leak through the polishing cloth if permeable enough. As a result, the supply of the surface 2 to be polished with polishing agent is further improved.
  • Negative pressure in the axial channel whereby polishing agent is also conveyed without a specially provided pump. The polishing plate can thus also act like a radial pump.
  • the device 1 may comprise a second nozzle bar 14 with a plurality of nozzles 15 for spraying the liquid, wherein the polishing heads 4, 5 may be arranged between the two nozzle bars 6, 14. Between the two nozzle bars 6 and 14 is a polishing area, in which the band 3 by means of the polishing heads 4, 5 is polished.
  • the device may comprise at least a third nozzle bar 16, wherein a
  • the device 1 may have a fourth nozzle bar 17 arranged behind the third nozzle bar 16 and viewed from the direction of the polishing heads 4, 5.
  • Nozzles 18 of the third nozzle bar 16 can be arranged pointing away from nozzles 19 of the fourth nozzle bar 17 and vice versa.
  • the nozzles 18 of the third nozzle bar 16 and the nozzles 19 of the fourth nozzle bar 17 may also point in the same direction.
  • the nozzles 18 and 19 may point perpendicular to the surface 2 of the belt 3.
  • the nozzle bars may be connected via supply lines to a reservoir and a pump for the liquid to be sprayed.
  • an air knife 20 can be arranged.
  • a section of the surface 2 of the strip 3 to be polished is wetted with a cleaning liquid 21.
  • Step i) preceding, subsequent or simultaneously carried out with this step ii) a polishing agent is applied and polished in a step iii) by means of the polishing heads 4, 5 of the polished portion of the surface 2 of the belt 3. While polishing is running the band 3 under the polishing heads 4, 5 by. Viewed in a direction of movement of the belt 3 after the polishing heads 4, 5, a liquid curtain 22 is generated from the cleaning liquid 21 inclined obliquely in the direction of the polishing head 4, 5 or at an angle of 90 ° on the surface 2 of the belt 3 incident. It should be noted at this point that the direction of movement of the belt 3 in FIG. 1 is from right to left.
  • the band 3 is designed as an endless belt, which is spanned between two drums, one of which is driven. It has proven to be particularly advantageous if the belt 3 is moved at a speed of 0.05-1.0 m / min, in particular 0.2-0.3 m / min. In addition, it is particularly favorable if the cleaning liquid 21 used is water having a conductivity between 0.2 and 10 ⁇ s, in particular between 0.4 and 0.9 ⁇ s.
  • a step iv) viewed in the direction of movement of the belt 3, after the liquid curtain 22, residues of the polishing agent can be skimmed off on a liquid film located on the surface 2 of the belt 3.
  • the skimming polishing residues can be done in front of the nozzle bar 16 and / or after the nozzle bar 16, preferably in a region between the two nozzle bars 16 and 17.
  • the skimming of polishing residues which can be carried out manually, is preferably carried out with a similar cloth, as it is used for polishing.
  • the liquid film freed from the residues can be calmed. This can be done by exposing the liquid film on the belt to no further spraying over a distance of predetermined length. After the liquid film has settled, the surface 2 of the strip 3 is dried in a step vi) by means of the air knife 20.
  • the air jet of the air knife 20 is inclined obliquely against the surface 2 of the belt, so that the liquid film is forced back against the direction of movement of the belt 3 forming a meniscus of the air jet and the surface 2 of the belt 3 is dried after passing through the air knife 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

L'invention concerne un dispositif (1) et un procédé pour polir une surface (2) d'une bande (3) de métal, en particulier d'une bande sans fin, ce dispositif (1) comprenant au moins une tête de polissage (4, 5) pour polir ladite surface (2). Le dispositif (1) présente au moins une rampe de buses (6) comprenant plusieurs buses (7) destinées à pulvériser un liquide, les orifices de sortie des buses (7) étant dirigés en direction d'un plan dans lequel s'étend la surface (2) de la bande (3) lorsque le dispositif est dans un état de fonctionnement.
PCT/EP2018/059286 2017-04-12 2018-04-11 Dispositif et procédé pour polir une surface WO2018189239A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT503002017 2017-04-12
ATA50300/2017 2017-04-12

Publications (1)

Publication Number Publication Date
WO2018189239A1 true WO2018189239A1 (fr) 2018-10-18

Family

ID=62002124

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/059286 WO2018189239A1 (fr) 2017-04-12 2018-04-11 Dispositif et procédé pour polir une surface

Country Status (1)

Country Link
WO (1) WO2018189239A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110370159A (zh) * 2019-07-25 2019-10-25 南京林业大学 一种木材用平面稳定抛光装置及使用方法及其装配方法
CN112936046A (zh) * 2021-01-25 2021-06-11 路书芬 一种镀锌钢带生产加工系统
CN113681434A (zh) * 2021-08-25 2021-11-23 黄美林 一种稀土金属合金板材表层抛光装置
CN117681108A (zh) * 2024-02-02 2024-03-12 盐城合生柳环保科技有限公司 一种木质托盘加工用表面抛光装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002052857A (ja) * 2000-08-14 2002-02-19 Fuji Photo Film Co Ltd 平版印刷版用金属板の粗面化装置、平版印刷版用金属板の粗面化方法、及びｐｓ版
EP1628784A2 (fr) * 2003-04-07 2006-03-01 The Material Works Ltd. Procede d'elimination de la couche d'oxyde et d'inhibition de l'oxydation sur une feuille metallique traitee
JP2006346803A (ja) * 2005-06-15 2006-12-28 Sanyo Electric Co Ltd 基板研磨装置
KR101007517B1 (ko) * 2010-04-27 2011-01-14 세유특강(주) 헤어라인 자동가공장치
WO2011105181A1 (fr) * 2010-02-26 2011-09-01 住友電気工業株式会社 Procédé de traitement de surface d'une plaque en un alliage de magnésium, et plaque en un alliage de magnésium
CN101909818B (zh) * 2007-12-25 2013-11-06 日本电气硝子株式会社 玻璃板的端面磨削装置及其方法
WO2014165891A1 (fr) * 2013-04-10 2014-10-16 Berndorf Band Gmbh Dispositif et procédé de ponçage d'une bande métallique
AT512230B1 (de) * 2011-11-22 2016-02-15 Berndorf Band Gmbh Poliermittel
CN105563302A (zh) * 2014-10-30 2016-05-11 住华科技股份有限公司 靶材处理设备

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002052857A (ja) * 2000-08-14 2002-02-19 Fuji Photo Film Co Ltd 平版印刷版用金属板の粗面化装置、平版印刷版用金属板の粗面化方法、及びｐｓ版
EP1628784A2 (fr) * 2003-04-07 2006-03-01 The Material Works Ltd. Procede d'elimination de la couche d'oxyde et d'inhibition de l'oxydation sur une feuille metallique traitee
JP2006346803A (ja) * 2005-06-15 2006-12-28 Sanyo Electric Co Ltd 基板研磨装置
CN101909818B (zh) * 2007-12-25 2013-11-06 日本电气硝子株式会社 玻璃板的端面磨削装置及其方法
WO2011105181A1 (fr) * 2010-02-26 2011-09-01 住友電気工業株式会社 Procédé de traitement de surface d'une plaque en un alliage de magnésium, et plaque en un alliage de magnésium
KR101007517B1 (ko) * 2010-04-27 2011-01-14 세유특강(주) 헤어라인 자동가공장치
AT512230B1 (de) * 2011-11-22 2016-02-15 Berndorf Band Gmbh Poliermittel
WO2014165891A1 (fr) * 2013-04-10 2014-10-16 Berndorf Band Gmbh Dispositif et procédé de ponçage d'une bande métallique
CN105563302A (zh) * 2014-10-30 2016-05-11 住华科技股份有限公司 靶材处理设备

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110370159A (zh) * 2019-07-25 2019-10-25 南京林业大学 一种木材用平面稳定抛光装置及使用方法及其装配方法
CN112936046A (zh) * 2021-01-25 2021-06-11 路书芬 一种镀锌钢带生产加工系统
CN113681434A (zh) * 2021-08-25 2021-11-23 黄美林 一种稀土金属合金板材表层抛光装置
CN113681434B (zh) * 2021-08-25 2023-01-13 东莞市炜安达智能科技有限公司 一种稀土金属合金板材表层抛光装置
CN117681108A (zh) * 2024-02-02 2024-03-12 盐城合生柳环保科技有限公司 一种木质托盘加工用表面抛光装置
CN117681108B (zh) * 2024-02-02 2024-04-09 盐城合生柳环保科技有限公司 一种木质托盘加工用表面抛光装置

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