EP1217123A1 - Walze, insbesondere Kalanderwalze - Google Patents
Walze, insbesondere Kalanderwalze Download PDFInfo
- Publication number
- EP1217123A1 EP1217123A1 EP01123510A EP01123510A EP1217123A1 EP 1217123 A1 EP1217123 A1 EP 1217123A1 EP 01123510 A EP01123510 A EP 01123510A EP 01123510 A EP01123510 A EP 01123510A EP 1217123 A1 EP1217123 A1 EP 1217123A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- paper
- calender
- roll
- hot
- 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.)
- Granted
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0246—Hard rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0253—Heating or cooling the rolls; Regulating the temperature
- D21G1/0266—Heating or cooling the rolls; Regulating the temperature using a heat-transfer fluid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49544—Roller making
- Y10T29/4956—Fabricating and shaping roller work contacting surface element
Definitions
- the invention relates to a paper processing roller according to the preamble of Claim 1 and a method for producing a in paper processing usable roller according to the preambles of claims 8, 12, 14 or 20.
- a paper web is passed through a nip a calender arrangement.
- This is both on-line and off-line installed calenders or smoothing units - regardless of the design - the case.
- the ever increasing production speeds and those on the today Multi-nip calenders on the market place new demands on the quality of Thermo rolls.
- Demanding paper grades are also becoming increasingly common online satin, the super calenders that have been installed with off-line so far without exception were manufactured at significantly lower production speeds. from that the result is that the calender device meets the requirements of the paper machine in terms of production speed, reliability, etc.
- the invention is based on the problem of the quality of paper processing rollers to improve, and to show a manufacturing process that the roller under production conditions in the machine an optimal one for the process Shape or concentricity assumes.
- this can also be done Balancing the respective roller at the elevated temperature, which also occurs in later operation.
- a combination is particularly favorable from hot grinding and hot balancing.
- the roller is provided with such a coating , it is particularly recommended to hot sand them before coating to undergo an even layer thickness after finish sanding sure.
- the finish sanding after coating at the temperature at which the roller was pre-ground.
- the roller could also have a predetermined one Profile be ground, which is after a warm grinding and the cooling of the roller has resulted.
- the heat can be released at an elevated operating temperature running roller on, for example, a paper web in contact with it can be simulated. This can cause deformation of the roller, in particular the emergence of the polygon effect are taken into account. Especially if the dimensions of the cooled area correspond to the area that is in operation is in contact with the paper web, the resulting deformations provoked very precisely during manufacture. The grinding and / or balancing can then take place under these deformation ratios, which are accurate correspond to the operating state. So in the following Operation by the deformation that then occurs exactly the return to the state of manufacture, thereby reducing the machining dimensions of manufacture correspond exactly to the dimensions in operation.
- This procedure is a constriction prevents the roller underneath the paper web as well as the training of the so-called oxbow effect and the occurrence of the polygon effect, at the round outline of the roller into a polygon with the risk of the barring problem is deformed.
- the polygon effect can be easily Measures a significant change in size and thus restriction of usability of the roller in operation.
- a heatable roller 1 with internal bores 2 shown, which extend axially and for the passage of a heating medium in the Operation and during the manufacture of the roller 1 are provided.
- the heating medium can be a preheated fluid such as heat transfer oil, water or water vapor his.
- the bores 2 can be roughly in a shell of the hollow cylindrical Roll 1 be formed.
- roller body 4 For clamping the roller 1 there are symmetrical flange pins 3 provided that limit the roller body 4 to both sides and outwards point to be included in the bearing eyes of a stand 5 can.
- Typical paper processing rolls 1, which are used as calender rolls for calendering a paper web are used, for example consist of a chilled cast iron, Centrifugal casting or, to a certain extent, from forged steel. Such materials are inhomogeneous (anisotropic and orthotrophic) the exactness of the shape is particularly problematic.
- the dimensions the rollers 1 are predetermined by the width of the paper web. The rollers 1 are therefore several meters long. About 3 m roll length is typical. The weight can be up to 90 t.
- the rollers 1 are kept at an elevated temperature. This lies for example in the range of 50 ° C to 250 ° C.
- the bores 2 a double function, they serve on the one hand for the passage of fluid during use the roller 1 in paper production and on the other hand to pass a also used for the introduction of heat during the production of the Roller 1.
- Heating medium can be introduced.
- the heating medium introduction takes place under slow roller rotation then instead of until a constant temperature of the roller 1 is set is.
- the temperature must be constant over the entire roll surface 6 and be approximately even.
- the hot grinding is carried out at the set temperature high temperature. Depending on the surface temperature, this is usually a dry sanding. Ceramic-bonded silicon carbide or are used for grinding Corundum grinding wheels or other ceramic-bonded abrasives of sufficient hardness use.
- the grinding machine is usually CNC controlled.
- the roller 1 In the manufacturing process, the roller 1 is exposed to the same temperature as in their later use. When used in a temperature range would be then this e.g. the mean temperature of the temperature range. This will Deformations caused by thermal effects are minimized. To monitor the Temperature during manufacture becomes highly accurate temperature measuring devices used. During the surface processing of the roller 1, this is held in quillons by quills. The roller is 3 in Plain bearings held. Also a holder in roller bearings, such as cylindrical roller bearings / spherical roller bearings, is conceivable to the conditions under operating conditions To take into account.
- the paper processing roller After hot grinding, the paper processing roller is checked for shape and roundness checked. A correction is possible.
- the roller surface 6 is coated and ground warm.
- a coating can in particular be a carbide, such as a tungsten carbide layer.
- a method of manufacturing a roller in which it is particularly advantageous is both ground warm and balanced warm. Then form and The running characteristics are precisely adapted to the later operating conditions.
- Balancing can change the mass distribution during the Reacting warm cuts and therefore realizing a very high accuracy.
- This Hot balancing is not only interesting for paper processing rollers, but also for other rolls of large dimensions that have a high operating temperature and are exposed to speed.
- the paper calender roll is particularly advantageous because the accuracy required there in surface processing is much larger than in other areas and the paper speed is very high.
- the required surface quality comes with a tungsten carbide layer or similar surface layer that is also warm ground, achieved with high quality. Only with that could such satisfactory results are achieved that a series application of Paper calender rolls of the dimensions and weights mentioned were possible.
- the shape error of a calender roll that was not hot-ground under operating temperature, which were in the order of 300 microns can with the Invention can be reduced to less than 5 around and 10 microns cylindrical.
- the described hot grinding and / or balancing method realized in combination with cooling of the roller surface 6, whereby the heat that occurs during operation to a material to be rolled, for example a paper web that is simulated close to operation.
- a material to be rolled for example a paper web that is simulated close to operation.
- the cooling relates to the running surface of the roller 1, that is, to the area of the Surface 6, which is in contact with the paper web during operation. Also corresponds the temperature of the coolant in the making approximately the temperature that the Has paper web.
- a second roller can, for example, be used to cool the roller 1, which is mounted parallel to the roller 1 to be processed and in contact with this one stands.
- the second roller can be cooled, for example by internal cooling by means of a fluid or by surface cooling.
- the contact to the surface 6 of the roller 1 can be produced via a (cooling) cover. This second Due to its rotatability, the roller also enables cooling contact with the roller 1 during their faster rotation.
- a chilled beam can be used, for example with a damp one Pad made of felt or a similarly soft, absorbent material and is pressed with it against the surface 6 of the roller 1.
- the surface 6 of the roller 1 can also be blown, for example with a Gas, in particular air, or with a gas-fluid mixture, such as an air-water mist, which also again essentially increases the temperature of the later has rolling paper web.
- a Gas in particular air
- a gas-fluid mixture such as an air-water mist
- a roller 1 is then created, the core of which is warmed to a higher temperature than its surface 6. Correspondingly there is uneven deformation after manufacture. The deformation is traced back to the conditions during production, whereby the exact dimensions of the roller are secured during operation.
Landscapes
- Paper (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
- Fig. 1
- eine perspektivische Ansicht einer mit axialen Bohrungen zur Heizmitteldurchleitung versehene Walze,
- Fig. 2
- eine schematische Abbildung einer Kalanderanordnung aus zwei übereinanderliegenden Walzen.
- 1
- Walze,
- 2
- Bohrung,
- 3
- Flanschzapfen,
- 4
- Walzenkörper,
- 5
- Ständer,
- 6
- Oberfläche.
Claims (20)
- Papierbearbeitungswalze (1), insbesondere innerhalb eines Papierkalanders einsetzbare Walze, wobei die Walze (1) während des Betriebs einer erhöhten Temperatur aussetzbar ist,
dadurch gekennzeichnet, daß die Walze (1) eine warmbearbeitete Oberfläche (6) aufweist. - Papierbearbeitungswalze nach Anspruch 1,
dadurch gekennzeichnet, daß die Walze (1) eine warm geschliffene Oberfläche (6) aufweist. - Papierbearbeitungswalze nach einem der Ansprüche 1 oder2,
dadurch gekennzeichnet, daß die Oberfläche (6) der Walze (1) bei 50°C bis 250°C bearbeitet ist. - Papierbearbeitungswalze nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß die Walze (1) beschichtet ist und die Oberfläche (6) aus dem Beschichtungsmaterial besteht. - Papierbearbeitungswalze nach Anspruch 4,
dadurch gekennzeichnet, daß die Beschichtung aus Chrom, einem Karbid oder Oxid, insbesondere Wolframkarbid oder Chromoxid, besteht. - Papierbearbeitungswalze nach Anspruch 5,
dadurch gekennzeichnet, daß die Walze (1) vor und/oder nach der Beschichtung unter erhöhter Temperatur bearbeitet, insbesondere geschliffen ist. - Papierbearbeitungswalze nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß die Walze warm ausgewuchtet ist. - Verfahren zur Herstellung einer in der Papierherstellung einsetzbaren Walze, insbesondere einer in einem Kalander einer Papiermaschine einsetzbaren Walze,
dadurch gekennzeichnet, daß die Oberfläche der Walze warm bearbeitet wird. - Verfahren nach Anspruch 8,
dadurch gekennzeichnet, daß die Walze warm geschliffen wird. - Verfahren nach einem der Ansprüche 8 oder 9,
dadurch gekennzeichnet, daß die Walze bei der Temperatur warm bearbeitet wird, die im wesentlichen ihrer vorgesehenen Einsatztemperatur entspricht - Verfahren nach einem der Ansprüche 8 bis 10,
dadurch gekennzeichnet, daß die Walze vor ihrer Oberflächenbeschichtung warm geschliffen und anschließend beschichtet wird. - Verfahren zur Herstellung einer Walze, insbesondere einer in einem Kalander einer Papiermaschine einsetzbaren Walze, insbesondere nach einem der Ansprüche 9 bis 12,
dadurch gekennzeichnet, daß die Walze warm ausgewuchtet wird. - Verfahren nach Anspruch 13,
dadurch gekennzeichnet, daß die Oberfläche der Walze warm bearbeitet und die Walze warm ausgewuchtet wird. - Verfahren zur Herstellung einer Walze, insbesondere einer in der Papierherstellung einsetzbaren Walze, wie etwa einer in einem Kalander einer Papiermaschine einsetzbaren Walze,
dadurch gekennzeichnet, daß zur Annäherung an Temperaturverhältnisse während des Betriebes die Oberfläche der Walze während der Herstellung zumindest bereichsweise einer Kühlung ausgesetzt wird. - Verfahren nach Anspruch 14,
dadurch gekennzeichnet, daß der der Kühlung ausgesetzte Oberflächenbereich dem während des Betriebes von einer Papierbahn überlaufenen Bereich der Walze entspricht. - Verfahren nach einem der Ansprüche 14 oder 15,
dadurch gekennzeichnet, daß der Oberflächenbereich der Walze während der Herstellung in Kontakt mit einer Kühlflüssigkeit steht. - Verfahren nach einem der Ansprüche 14 bis 16,
dadurch gekennzeichnet, daß der Oberflächenbereich der Walze während der Herstellung in Kontakt mit einer mit einem Kühlbezug versehenen Walze oder Band steht. - Verfahren nach einem der Ansprüche 14 bis 17,
dadurch gekennzeichnet, daß der Oberflächenbereich der Walze während der Herstellung in Kontakt mit einem gegen diese druckbeaufschlagten Kühlbalken steht. - Verfahren nach einem der Ansprüche 14 bis 18,
dadurch gekennzeichnet, daß der Oberflächenbereich der Walze mit einem Gas oder einem Gas-Fluid-Gemisch angeblasen wird. - Verfahren zur Herstellung einer in der Papierherstellung einsetzbaren Walze, insbesondere einer in einem Kalander einer Papiermaschine einsetzbaren Walze,
dadurch gekennzeichnet, daß das zuvor ermittelte Warmprofil der Walze (1) nachträglich, nach Erkalten der Walze (1) als Negativprofil auf die Walze (1) kalt geschliffen übertragen wird.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10061207 | 2000-12-08 | ||
DE10061207 | 2000-12-08 | ||
DE10108128A DE10108128A1 (de) | 2000-12-08 | 2001-02-21 | Walze, insbesondere Kalanderwalze |
DE10108128 | 2001-02-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1217123A1 true EP1217123A1 (de) | 2002-06-26 |
EP1217123B1 EP1217123B1 (de) | 2004-12-15 |
Family
ID=26007915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01123510A Revoked EP1217123B1 (de) | 2000-12-08 | 2001-09-29 | Walze, insbesondere Kalanderwalze |
Country Status (3)
Country | Link |
---|---|
US (1) | US7018512B2 (de) |
EP (1) | EP1217123B1 (de) |
JP (1) | JP2002201584A (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008040844A1 (en) * | 2006-10-02 | 2008-04-10 | Metso Materials Technology Oy | Method for manufacturing a roll and a roll for fibre-web machine |
DE102011050860A1 (de) * | 2011-06-06 | 2012-12-06 | Andritz Küsters Gmbh | Schleifbehandlungsverfahren von Gravurwalzen und Gravurwalze |
WO2012167849A1 (de) | 2011-06-06 | 2012-12-13 | Andritz Küsters Gmbh | Walze und verfahren zu herstellung und betrieb |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10328557B4 (de) * | 2003-06-24 | 2005-04-14 | Walzen Irle Gmbh | Walze |
JP5334568B2 (ja) * | 2008-12-26 | 2013-11-06 | ノードソン コーポレーション | ロール研磨方法 |
DE102009004562B4 (de) * | 2009-01-14 | 2015-06-03 | Shw Casting Technologies Gmbh | Walzenkörper für eine Walze zur Behandlung eines Materials und Verfahren zur Herstellung eines Walzenkörpers |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2258610A1 (de) * | 1972-11-30 | 1974-06-06 | Skandinaviska Apparatind | Verfahren zur herstellung einer walze oder rolle mit einer auf stahl aufgebrachten oberflaechenschicht aus chrom mit vertiefungen |
DE4417194A1 (de) * | 1994-05-17 | 1995-11-23 | Doerries Gmbh | Auswuchten eines rotierenden Hohlkörpers |
EP0710741A2 (de) * | 1990-11-30 | 1996-05-08 | S.D. Warren Company | Verfahren und Vorrichtung zum Kalandern von Papier |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3944444A (en) * | 1971-05-20 | 1976-03-16 | A. Finkl & Sons Company | Method for heat treating cylindrical products |
US3775241A (en) * | 1971-07-21 | 1973-11-27 | Beloit Corp | Device and method for finishing the contour of paper making rolls |
US3753276A (en) * | 1971-12-27 | 1973-08-21 | K Reisch | Calender roll cover |
AU2915077A (en) * | 1976-12-21 | 1979-04-05 | Eutectic Corp | Automatic flame spraying apparatus |
DE3304076A1 (de) * | 1983-02-07 | 1984-08-09 | Schwäbische Hüttenwerke GmbH, 7080 Aalen | Walze grosser abmessungen fuer maschinen zur herstellung von endlosem bahnmaterial |
DD253084A1 (de) * | 1986-09-30 | 1988-01-06 | Polygraph Leipzig | Vorrichtung zum auswuchten von zylindern in druckmaschinen |
FI80954C (fi) * | 1988-06-28 | 1990-08-10 | Valmet Paper Machinery Inc | Foerfarande foer balansering av en vals och anordning som anvaends vid foerfarandet. |
SE502857C2 (sv) * | 1990-01-04 | 1996-01-29 | Lundmark E | Förfarande och anordning för bearbetning, särskilt slipning, av valsar och liknande arbetsstycken |
FI88420B (fi) * | 1991-03-20 | 1993-01-29 | Valmet Paper Machinery Inc | Foerfarande foer framstaellning av en vals och en vals |
FI98404C (fi) * | 1994-06-01 | 1997-06-10 | Petri Kuosmanen | Menetelmä ja laite joustavan roottorin, erityisesti telan tai sylinterin jatkuvaan tasapainottamiseen ja taivutusjäykkyysvaihtelun pienentämiseen |
-
2001
- 2001-09-29 EP EP01123510A patent/EP1217123B1/de not_active Revoked
- 2001-12-05 US US10/007,587 patent/US7018512B2/en not_active Expired - Fee Related
- 2001-12-06 JP JP2001372840A patent/JP2002201584A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2258610A1 (de) * | 1972-11-30 | 1974-06-06 | Skandinaviska Apparatind | Verfahren zur herstellung einer walze oder rolle mit einer auf stahl aufgebrachten oberflaechenschicht aus chrom mit vertiefungen |
EP0710741A2 (de) * | 1990-11-30 | 1996-05-08 | S.D. Warren Company | Verfahren und Vorrichtung zum Kalandern von Papier |
DE4417194A1 (de) * | 1994-05-17 | 1995-11-23 | Doerries Gmbh | Auswuchten eines rotierenden Hohlkörpers |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008040844A1 (en) * | 2006-10-02 | 2008-04-10 | Metso Materials Technology Oy | Method for manufacturing a roll and a roll for fibre-web machine |
DE102011050860A1 (de) * | 2011-06-06 | 2012-12-06 | Andritz Küsters Gmbh | Schleifbehandlungsverfahren von Gravurwalzen und Gravurwalze |
WO2012167849A1 (de) | 2011-06-06 | 2012-12-13 | Andritz Küsters Gmbh | Walze und verfahren zu herstellung und betrieb |
DE102011050860B4 (de) * | 2011-06-06 | 2014-12-24 | Andritz Küsters Gmbh | Schleifbehandlungsverfahren von Gravurwalzen und Gravurwalze |
US9581191B2 (en) | 2011-06-06 | 2017-02-28 | Andritz Kuesters Gmbh | Roller and methods for production and operation |
Also Published As
Publication number | Publication date |
---|---|
JP2002201584A (ja) | 2002-07-19 |
US7018512B2 (en) | 2006-03-28 |
US20020069994A1 (en) | 2002-06-13 |
EP1217123B1 (de) | 2004-12-15 |
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