EP1760193B1 - Heatable roll - Google Patents
Heatable roll Download PDFInfo
- Publication number
- EP1760193B1 EP1760193B1 EP06111988A EP06111988A EP1760193B1 EP 1760193 B1 EP1760193 B1 EP 1760193B1 EP 06111988 A EP06111988 A EP 06111988A EP 06111988 A EP06111988 A EP 06111988A EP 1760193 B1 EP1760193 B1 EP 1760193B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- accordance
- roll
- welding
- approximately
- welding layer
- 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
Links
- 238000003466 welding Methods 0.000 claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000000137 annealing Methods 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 8
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000123 paper Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000007669 thermal treatment Methods 0.000 claims 2
- 239000000835 fiber Substances 0.000 claims 1
- 239000011261 inert gas Substances 0.000 claims 1
- 235000019589 hardness Nutrition 0.000 description 13
- 230000035882 stress Effects 0.000 description 6
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005552 hardfacing Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/021—Construction of the cylinders
-
- 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
Definitions
- the invention relates to a heatable roller with a smooth, hard surface for the production and / or treatment of a fibrous web, in particular paper, cardboard or tissue web, with a base tube made of weldable steel, on which at least one welding layer is applied, which has a greater hardness as the ground pipe. It further relates to a method for producing such a roller according to the preamble of claim 15. A roller and a method of this kind are known from the WO 03/076714 A2 known.
- KSTV chrome casting
- the WO 03/076714 A2 known heatable roll can vary certain properties of the roll surface such as the hardness and the thermal conductivity in the cross machine direction.
- the invention has for its object to provide an improved roller and an improved method of the type mentioned, in which the aforementioned problems are eliminated.
- this object is achieved according to the invention in that the hardness of the welding layer increases radially outward from the base tube and the roller has a surface hardness of Vickers ⁇ 600 HV, in particular ⁇ 700 HV, in particular ⁇ 750 HV and preferably of approximately 800 HV , owns.
- the base tube of the roller can thus be made of a relatively simple weldable steel, while over one or more hard welding layers are applied.
- the layer to be welded has relatively freely determinable components, the physical and chemical properties of the layer or the various layers of this layer are variably adjustable.
- the welding layer is produced with a hardness increasing radially outward from the base tube, internal stresses are correspondingly reduced.
- a basic tube made of simple steel can be used for the heatable rolls of generally relatively thick wall thickness in question, which can be very easily drilled.
- the welding layer consists of a metal alloy which can be welded to the base tube.
- all metal alloys come into question, which are welded to the base tube.
- the welding layer is spirally applied to the base tube.
- the layer can be welded in a spiral manner when the base tube rotates.
- the welding layer may be formed by one or by a plurality of welding layers.
- the thickness of a respective welding layer is preferably about 3 mm.
- the total thickness of the welding layer after the finishing of the surface is advantageously in a range from about 1 to about 20 mm, preferably in a range from about 3 to about 10 mm.
- the heatable roll may in particular be a rotating hollow roll with flanged mounted journals.
- the roller is provided with peripheral, preferably parallel to the roll axis extending heating channels or holes.
- a preferred wall thickness of the heatable roll is in a range of about 100 to about 200 mm.
- the base tube of the heatable roller may in particular consist of a forged tube, a seamlessly drawn tube or a turned round steel.
- a base tube made of simple steel, which can be drilled very easily, can be used for the heatable rolls of generally relatively thick wall thickness in question here.
- the residual stresses can be significantly reduced.
- the roller is heated to temperatures in the range of 100 ° to 250 ° C, the sum of residual stresses and external stresses is reduced to a manageable level.
- a constant hardness layer thickness can be achieved according to the invention, which brings about a significantly better dimensional stability and a better dynamic running behavior of the roll.
- Another decisive advantage of the heatable roller according to the invention is that it offers improved repair options.
- the respective repair can be carried out by renewed build-up welding.
- the abovementioned object according to the invention is correspondingly achieved in that the welding layer is produced with a hardness increasing radially outward from the base tube and with the welding layer a surface hardness of Vickers ⁇ 600 HV, in particular ⁇ 700 HV, in particular ⁇ 750 HV and preferably of about 800 HV.
- the welding of the welding layer is expediently carried out under powder or under protective gas and by a material addition in the form of at least one band or wire.
- the welding layer can advantageously be applied spirally when the base body rotates.
- the final material properties of the coating are adjusted after the welding job by a corresponding heat treatment, which comprises an annealing treatment, wherein the adjustable via the subsequent heat treatment material properties, the toughness, the microstructure, dimensional stability, residual stress, hardness and / or the like.
- the welding layer is preferably provided in conjunction with a tungsten carbide layer.
- this is preferably defined by a roughness value Ra in a range from about 0.01 to about 0.2 ⁇ m.
Landscapes
- Rolls And Other Rotary Bodies (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Paper (AREA)
Abstract
Description
Die Erfindung betrifft eine beheizbare Walze mit einer glatten, harten Oberfläche zur Herstellung und/oder Behandlung einer Faserstoffbahn, insbesondere Papier-, Karton- oder Tissuebahn, mit einem Grundrohr aus schweißbarem Stahl, auf das zumindest eine Schweißschicht aufgebracht ist, die eine größere Härte besitzt als das Grundrohr. Sie betrifft ferner ein Verfahren zur Herstellung einer solchen Walze gemäß dem Oberbegriff des Anspruchs 15. Eine Walze sowie ein Verfahren dieser Art sind aus der
Bisher werden als beheizbare Walzen mit einer besonders glatten, harten Oberfläche nur Hartgusswalzen oder geschmiedete und induktiv gehärtete Stahlwalzen verwendet. Beide Walzentypen sind teuer und nur in bestimmten, d.h. relativ großen Abmessungen auf dem Markt erhältlich. Zudem sind sie mit großen Eigenspannungsproblemen behaftet. Darüber hinaus wäre auch eine höhere Verschleißfestigkeit erwünscht. Auch bezüglich der Einhaltung einer bestimmten Härteschichtdicke ergeben sich bei den bisher bekannten Walzen erhebliche Probleme, was sich nachteilig insbesondere auf die Formstabilität auswirkt. Bei induktiv gehärteten Schmiedestahlwalzen lässt sich die Härtetiefe zwar relativ genau festlegen, hier kommt es jedoch beim Übergang zwischen gehärteter zu ungehärteter Schicht zu einem Eigenspannungspeak. Hinzu kommt, dass eine Hartgusswalze nach einer jeweiligen Beschädigung nur abgedreht werden kann. Schließlich tritt bei einer Walze aus Hartgussmaterial radial von innen nach außen stets ein zunehmender Härteanstieg auf, wodurch das axiale Bohren von Heizkanälen durch den Walzenmantel beträchtlich erschwert wird.Until now, only chill rolls or forged and inductively hardened steel rolls have been used as heatable rolls with a particularly smooth, hard surface. Both types of rollers are expensive and available only in certain, ie relatively large dimensions on the market. In addition, they are subject to large residual stress problems. In addition, a higher wear resistance would be desirable. Also regarding the maintenance of a certain hardness layer thickness results in the previously known rollers considerable problems, which adversely affects in particular the dimensional stability. For inductive hardened forged steel rolls, although the depth of hardening can be set relatively precisely, in the transition from hardened to uncured layer an inherent stress peak occurs. In addition, a chill roll after a particular damage can only be turned off. Finally, in a roll of chilled cast material, an increasing increase in hardness always occurs radially from the inside to the outside, whereby the axial drilling of heating channels through the roll shell is considerably impeded.
Neben Hartgusswalzen und gehärteten Stahlwalzen ist auch Chromguss (KSTV) im Einsatz.In addition to chill rolls and hardened steel rolls, chrome casting (KSTV) is also used.
Beispielsweise bei Rädern von Schienenfahrzeugen und bei Stahlwalzwerken ist bereits eine so genannte "Panzerschweißung" bekannt.For example, in wheels of rail vehicles and steel rolling mills, a so-called "armored welding" is already known.
Bei der aus der
Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Walze sowie ein verbessertes Verfahren der eingangs genannten Art zu schaffen, bei denen die zuvor genannten Probleme beseitigt sind.The invention has for its object to provide an improved roller and an improved method of the type mentioned, in which the aforementioned problems are eliminated.
Diese Aufgabe wird bezüglich der beheizbaren Walze erfindungsgemäß dadurch gelöst, dass die Härte der Schweißschicht ausgehend vom Grundrohr radial nach außen zunimmt und dass die Walze eine Oberflächenhärte nach Vickers ≥ 600 HV, insbesondere ≥ 700 HV, insbesondere ≥ 750 HV und vorzugsweise von etwa 800 HV, besitzt.With regard to the heatable roller, this object is achieved according to the invention in that the hardness of the welding layer increases radially outward from the base tube and the roller has a surface hardness of Vickers ≥ 600 HV, in particular ≥ 700 HV, in particular ≥ 750 HV and preferably of approximately 800 HV , owns.
Das Grundrohr der Walze kann also aus einem relativ einfachen schweißbaren Stahl gefertigt werden, während darüber eine oder mehrere harte Schweißschichten aufgebracht werden.The base tube of the roller can thus be made of a relatively simple weldable steel, while over one or more hard welding layers are applied.
Da die zu schweißende Schicht relativ frei bestimmbare Bestandteile besitzt, sind die physikalischen und chemischen Eigenschaften der Schicht bzw. der verschiedenen Lagen dieser Schicht variabel einstellbar. Nachdem erfindungsgemäß die Schweißschicht mit einer ausgehend vom Grundrohr radial nach außen zunehmenden Härte erzeugt wird, werden Eigenspannungen entsprechend reduziert. Zudem kann für die hier in Rede stehenden beheizbaren Walzen von in der Regel relativ dicker Wandstärke ein Grundrohr aus einfachem Stahl verwendet werden, das sehr leicht gebohrt werden kann.Since the layer to be welded has relatively freely determinable components, the physical and chemical properties of the layer or the various layers of this layer are variably adjustable. According to the invention, the welding layer is produced with a hardness increasing radially outward from the base tube, internal stresses are correspondingly reduced. In addition, a basic tube made of simple steel can be used for the heatable rolls of generally relatively thick wall thickness in question, which can be very easily drilled.
Vorteilhafterweise besteht die Schweißschicht aus einer mit dem Grundrohr verschweißbaren Metalllegierung. Dabei kommen grundsätzlich alle Metalllegierungen in Frage, die mit dem Grundrohr verschweißbar sind.Advantageously, the welding layer consists of a metal alloy which can be welded to the base tube. In principle, all metal alloys come into question, which are welded to the base tube.
Bevorzugt ist die Schweißschicht spiralförmig auf das Grundrohr aufgebracht. Die Schicht kann also beispielsweise bei sich drehendem Grundrohr spiralförmig aufgeschweißt werden.Preferably, the welding layer is spirally applied to the base tube. Thus, for example, the layer can be welded in a spiral manner when the base tube rotates.
Herkömmliche Hartgusswalzen besitzen Härten von etwa 530 HV. Mit dem erfindungsgemäßen Aufbringen einer Schweißschicht sind ohne weiteres Härten bis beispielsweise etwa 800 HV denkbar.Conventional chill rolls have hardnesses of about 530 HV. With the application of a welding layer according to the invention, curing up to, for example, about 800 HV is conceivable without further ado.
Die Schweißschicht kann durch eine oder auch durch mehrere Schweißlagen gebildet sein. Dabei beträgt die Dicke einer jeweiligen Schweißlage vorzugsweise etwa 3 mm.The welding layer may be formed by one or by a plurality of welding layers. In this case, the thickness of a respective welding layer is preferably about 3 mm.
Die Gesamtdicke der Schweißschicht nach der Endbearbeitung der Oberfläche beispielsweise durch Drehen oder Schleifen liegt vorteilhafterweise in einem Bereich von etwa 1 bis etwa 20 mm, vorzugsweise in einem Bereich von etwa 3 bis etwa 10 mm.The total thickness of the welding layer after the finishing of the surface, for example by turning or grinding, is advantageously in a range from about 1 to about 20 mm, preferably in a range from about 3 to about 10 mm.
Bei der beheizbaren Walze kann es sich insbesondere um eine rotierende Hohlwalze mit angeflanschten gelagerten Zapfen handeln.The heatable roll may in particular be a rotating hollow roll with flanged mounted journals.
Vorteilhafterweise ist die Walze mit peripheren, sich vorzugsweise parallel zur Walzenachse erstreckenden Heizkanälen oder -bohrungen versehen.Advantageously, the roller is provided with peripheral, preferably parallel to the roll axis extending heating channels or holes.
Eine bevorzugte Wandstärke der beheizbaren Walze liegt in einem Bereich von etwa 100 bis etwa 200 mm.A preferred wall thickness of the heatable roll is in a range of about 100 to about 200 mm.
Das Grundrohr der beheizbaren Walze kann insbesondere durch ein geschmiedetes Rohr, durch ein nahtlos gezogenes Rohr oder aus einem ausgedrehten Rundstahl bestehen.The base tube of the heatable roller may in particular consist of a forged tube, a seamlessly drawn tube or a turned round steel.
Wie bereits erwähnt, kann für die hier in Rede stehenden beheizbaren Walzen von in der Regel relativ dicker Wandstärke ein Grundrohr aus einfachem Stahl verwendet werden, das sehr leicht gebohrt werden kann. In der erfindungsgemäßen Walze können zudem die Eigenspannungen deutlich reduziert werden. Beim Aufheizen der Walze auf Temperaturen in einem Bereich von 100° bis 250°C sinkt dadurch die Summe von Eigenspannungen und äußeren Spannungen auf ein gut beherrschbares Niveau. Im Gegensatz zu den herkömmlichen Walzen ist erfindungsgemäß eine konstante Härteschichtdicke erreichbar, die eine deutlich bessere Formstabilität und ein besseres dynamisches Laufverhalten der Walze mit sich bringt.As already mentioned, a base tube made of simple steel, which can be drilled very easily, can be used for the heatable rolls of generally relatively thick wall thickness in question here. In addition, in the roll according to the invention, the residual stresses can be significantly reduced. When the roller is heated to temperatures in the range of 100 ° to 250 ° C, the sum of residual stresses and external stresses is reduced to a manageable level. In contrast to the conventional rolls, a constant hardness layer thickness can be achieved according to the invention, which brings about a significantly better dimensional stability and a better dynamic running behavior of the roll.
Ein weiterer entscheidender Vorteil der erfindungsgemäßen beheizbaren Walze besteht darin, dass sie verbesserte Reparaturmöglichkeiten bietet. So kann bei der erfindungsgemäßen Walze nach einer jeweiligen Beschädigung die jeweilige Reparatur durch ein erneutes Auftragschweißen erfolgen.Another decisive advantage of the heatable roller according to the invention is that it offers improved repair options. Thus, in the case of the roller according to the invention, after a respective damage, the respective repair can be carried out by renewed build-up welding.
Bezüglich des Verfahrens wird die zuvor angegebene Aufgabe nach der Erfindung entsprechend dadurch gelöst, dass die Schweißschicht mit einer ausgehend vom Grundrohr radial nach außen zunehmenden Härte erzeugt wird und dass mit der Schweißschicht eine Oberflächenhärte nach Vickers ≥ 600 HV, insbesondere ≥ 700 HV, insbesondere ≥ 750 HV und vorzugsweise von etwa 800 HV, erzeugt wird.With regard to the method, the abovementioned object according to the invention is correspondingly achieved in that the welding layer is produced with a hardness increasing radially outward from the base tube and with the welding layer a surface hardness of Vickers ≥ 600 HV, in particular ≥ 700 HV, in particular ≥ 750 HV and preferably of about 800 HV.
Dabei erfolgt das Aufschweißen der Schweißschicht zweckmäßigerweise unter Pulver oder unter Schutzgas und durch eine Materialzugabe in Form wenigstens eines Bandes oder Drahtes.The welding of the welding layer is expediently carried out under powder or under protective gas and by a material addition in the form of at least one band or wire.
Wie bereits erwähnt, kann die Schweißschicht vorteilhafterweise bei sich drehendem Grundkörper spiralförmig aufgebracht werden.As already mentioned, the welding layer can advantageously be applied spirally when the base body rotates.
Gemäß einer vorteilhaften Ausgestaltung des erfindungsgemäßen Verfahrens werden die endgültigen Werkstoffeigenschaften der Beschichtung nach dem Schweißauftrag durch eine entsprechende Wärmebehandlung eingestellt, die eine Glühbehandlung umfaßt, wobei die über die nachträgliche Wärmebehandlung einstellbaren Werkstoffeigenschaften die Zähigkeit, die Gefügestruktur, die Formstabilität, die Eigenspannung, die Härte und/oder dergleichen umfassen.According to an advantageous embodiment of the method according to the invention, the final material properties of the coating are adjusted after the welding job by a corresponding heat treatment, which comprises an annealing treatment, wherein the adjustable via the subsequent heat treatment material properties, the toughness, the microstructure, dimensional stability, residual stress, hardness and / or the like.
Es ist also eine beheizbare Walze aus einem Stahlgrundrohr mit harter Auftragsschweißschicht herstellbar, bei der die gewünschten Werkstoffeigenschaften, hier beispielsweise die Härte, durch die anschließende Wärmebehandlung in der gewünschten Weise eingestellt werden können.Thus, it is a heatable roll of a steel base pipe with hard hardfacing produced in which the desired material properties, here, for example, the hardness can be adjusted by the subsequent heat treatment in the desired manner.
Die Schweißschicht ist bevorzugt in Verbindung mit einer Wolframcarbidschicht vorgesehen.The welding layer is preferably provided in conjunction with a tungsten carbide layer.
Soweit hier von einer glatten Oberfläche die Rede ist, ist diese bevorzugt durch einen Rauigkeitswert Ra in einem Bereich von etwa 0,01 bis etwa 0,2 µm definiert.As far as a smooth surface is mentioned here, this is preferably defined by a roughness value Ra in a range from about 0.01 to about 0.2 μm.
Claims (28)
- A heating roll having a smooth, hard surface for manufacturing and/or treating a fibre web, in particular a paper web, cardboard web or tissue web, having a base pipe of weldable steel, onto which at least one welding layer is applied which has a greater hardness than the base pipe,
characterised in that
the hardness of the welding layer increases radially outwardly starting from the base pipe; and in that the roll has a surface hardness according to Vickers of ≥ 600 HV, in particular ≥ 700 HV, in particular ≥ 750, and preferably of approximately 800 HV. - A roll in accordance with claim 1,
characterised in that
the welding layer comprises a metal alloy weldable to the base jacket. - A roll in accordance with claim 1 or claim 2,
characterised in that
the welding layer is applied to the base jacket in spiral form. - A roll in accordance with any one of the preceding claims,
characterised in that
the welding layer is applied continuously to the base pipe by a circumferential welding, subsequently by a side step about a weld seam width, subsequently by a further circumferential welding, etc. - A roll in accordance with any one of the preceding claims,
characterised in that
the welding layer is formed by at least two welding coats. - A roll in accordance with claim 5,
characterised in that
the thickness of a respective welding coat amounts to approximately 3 mm. - A roll in accordance with any one of the preceding claims,
characterised in that
the total thickness of the welding layer after the end processing is selected in a range from approximately 1 to approximately 20 mm, preferably in a range from approximately 3 to approximately 10 mm. - A roll in accordance with any one of the preceding claims,
characterised in that
it is provided with flanged, supported spigots. - A roll in accordance with any one of the preceding claims,
characterised in that
it is provided with peripheral heating passages or heating bores preferably extending parallel to the roll axis. - A roll in accordance with any one of the preceding claims,
characterised in that
it has a wall thickness in a range from approximately 100 to approximately 200 mm. - A roll in accordance with any one of the preceding claims,
characterised in that
the base pipe is formed by a forged pipe. - A roll in accordance with any one of the claims 1 to 10,
characterised in that
the base pipe is formed by a seamlessly drawn pipe. - A roll in accordance with any one of the claims 1 to 10,
characterised in that
the base pipe is formed from a lathed round steel. - A roll in accordance with any one of the preceding claims,
characterised in that
the welding layer is provided in conjunction with a tungsten carbide layer. - A method for manufacturing a heatable roll which is provided with a smooth, hard surface and in which at least pone welding layer which has a greater hardness than the base pipe is applied to the base pipe of weldable steel,
characterised in that
the welding layer is produced with a hardness increasing radially outwardly starting from the base jacket; and in that a surface hardness according to Vickers ≥ 600 HV, in particular ≥ 700 HV, in particular ≥ 750 HV, and preferably of approximately 800 HV, is produced. - A method in accordance with claim 15,
characterised in that
the welding on of the welding layer takes place under powder or under inert gas and by a material addition in the form of at least one band or wire. - A method in accordance with claim 15 or claim 16,
characterised in that
the welding layer is formed by a metal alloy weldable to the base pipe. - A method in accordance with any one of the preceding claims 15 to 17,
characterised in that
the welding layer is applied in spiral form with a rotating base pipe. - A method in accordance with any one of the preceding claims 15 to 18,
characterised in that
the welding layer is applied continuously to the base pipe by a circumferential welding, subsequently by a side step about a weld seam width, subsequently by a further circumferential welding, etc. - A method in accordance with any one of the preceding claims 15 to 19,
characterised in that
the welding layer is formed by at least two welding coats. - A method in accordance with claim 20,
characterised in that
the thickness of a respective welding coat is selected as approximately 3 mm. - A method in accordance with any one of the preceding claims 15 to 21,
characterised in that
the total thickness of the welding layer after the end processing is selected in a range from approximately 1 to approximately 20 mm, preferably in a range from approximately 3 to approximately 10 mm. - A method in accordance with any one of the preceding claims 15 to 22,
characterised in that
the roll is produced with a wall thickness in a range from approximately 100 to approximately 200 mm. - A method in accordance with any one of the preceding claims 15 to 23,
characterised in that
the base pipe is formed by a forged pipe. - A method in accordance with any one of the claims 15 to 23,
characterised in that
the base pipe is formed by a seamlessly drawn pipe. - A method in accordance with any one of the claims 15 to 23,
characterised in that
the base pipe is formed by a lathed round steel. - A method in accordance with any one of the preceding claims 15 to 26,
characterised in that
the final material properties of the coating are set after the welding application by a corresponding thermal treatment which includes annealing, with the material properties settable via the subsequent thermal treatment including the toughness, the texture structure, the shape stability, the internal tension, the hardness and/or the like. - A method in accordance with claim 27,
characterised in that
the welding layer is provided in conjunction with a tungsten carbide layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07013737A EP1840261B1 (en) | 2005-08-29 | 2006-03-30 | Method for manufacturing a cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005040869A DE102005040869A1 (en) | 2005-08-29 | 2005-08-29 | Heatable roller |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07013737A Division EP1840261B1 (en) | 2005-08-29 | 2006-03-30 | Method for manufacturing a cylinder |
| EP07013737.7 Division-Into | 2007-07-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1760193A2 EP1760193A2 (en) | 2007-03-07 |
| EP1760193A3 EP1760193A3 (en) | 2007-07-18 |
| EP1760193B1 true EP1760193B1 (en) | 2011-11-23 |
Family
ID=37461538
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06111988A Not-in-force EP1760193B1 (en) | 2005-08-29 | 2006-03-30 | Heatable roll |
| EP07013737A Not-in-force EP1840261B1 (en) | 2005-08-29 | 2006-03-30 | Method for manufacturing a cylinder |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07013737A Not-in-force EP1840261B1 (en) | 2005-08-29 | 2006-03-30 | Method for manufacturing a cylinder |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070057019A1 (en) |
| EP (2) | EP1760193B1 (en) |
| AT (2) | ATE534766T1 (en) |
| DE (1) | DE102005040869A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013212343A1 (en) | 2013-06-26 | 2014-12-31 | Voith Patent Gmbh | Heat transfer roller and its production process |
| DE102018002473B4 (en) * | 2018-03-24 | 2024-08-01 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Mixing device for fibres or chips and binders |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2295702A (en) * | 1939-09-01 | 1942-09-15 | Haynes Stellite Co | Method of and apparatus for applying metal coatings |
| US2964251A (en) * | 1956-09-21 | 1960-12-13 | United States Pipe Foundry | Roll structure |
| US3339056A (en) * | 1966-06-06 | 1967-08-29 | Colonial Broach & Machine Comp | Machine and method of applying metal layer |
| GB1271959A (en) * | 1968-07-26 | 1972-04-26 | Hitachi Ltd | Compound cast rolls |
| US3689209A (en) * | 1970-07-27 | 1972-09-05 | Gleb Andreevich Vinogradov | Apparatus for manufacturing rolled products from powdery materials |
| US4149060A (en) * | 1977-07-25 | 1979-04-10 | Combustion Engineering, Inc. | Angled strip cladding system |
| DE207921T1 (en) * | 1985-04-30 | 1987-09-24 | Yamauchi Rubber Industry Co., Ltd., Hirakata, Osaka | PRESS ROLLER FOR PAPER MACHINES. |
| US5167068A (en) * | 1988-04-28 | 1992-12-01 | Valmet Paper Machinery Inc. | Method for manufacturing a roll directly contacting a web |
| US5252185A (en) * | 1990-11-30 | 1993-10-12 | S. D. Warren Company | Method and apparatus for calendering paper and internally heated roll |
| US5171404A (en) * | 1990-11-30 | 1992-12-15 | S. D. Warren Company | Method and apparatus for calendering paper with internally heated roll |
| US5334288A (en) * | 1992-09-09 | 1994-08-02 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Press roll in a paper machine |
| US5324248A (en) * | 1992-11-03 | 1994-06-28 | Composite Development Corporation | Composite machine roll and method of manufacture |
| US5616263A (en) * | 1992-11-09 | 1997-04-01 | American Roller Company | Ceramic heater roller |
| JPH11133572A (en) * | 1997-08-26 | 1999-05-21 | Fuji Photo Film Co Ltd | Thermal processor and thermal developing device using it |
| JP3406293B2 (en) * | 1999-12-03 | 2003-05-12 | 株式会社ディムコ | Metallic ring and method for producing the same |
| JP2001353778A (en) * | 2000-06-15 | 2001-12-25 | Fuji Photo Film Co Ltd | Calender treatment apparatus |
| FI115064B (en) * | 2002-03-13 | 2005-02-28 | Metso Paper Inc | Paper or board nip roll |
| DE10235142A1 (en) * | 2002-08-01 | 2004-02-19 | Shw Casting Technologies Gmbh | Roller for thermally pressure treating strip-like media, such as paper or fleece, in a multiple roller calender comprises a base body made from tempered forged steel or alloyed cast iron |
| US6727465B1 (en) * | 2003-02-24 | 2004-04-27 | General Electric Company | Apparatus for overlay welding of a tube exterior |
| DE10351515A1 (en) * | 2003-11-05 | 2005-06-09 | Voith Paper Patent Gmbh | Roller for thermal treatment of a material web |
-
2005
- 2005-08-29 DE DE102005040869A patent/DE102005040869A1/en not_active Withdrawn
-
2006
- 2006-03-30 EP EP06111988A patent/EP1760193B1/en not_active Not-in-force
- 2006-03-30 EP EP07013737A patent/EP1840261B1/en not_active Not-in-force
- 2006-03-30 AT AT06111988T patent/ATE534766T1/en active
- 2006-03-30 AT AT07013737T patent/ATE532900T1/en active
- 2006-08-22 US US11/466,334 patent/US20070057019A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005040869A1 (en) | 2007-03-08 |
| EP1760193A3 (en) | 2007-07-18 |
| EP1840261B1 (en) | 2011-11-09 |
| EP1760193A2 (en) | 2007-03-07 |
| ATE534766T1 (en) | 2011-12-15 |
| US20070057019A1 (en) | 2007-03-15 |
| EP1840261A1 (en) | 2007-10-03 |
| ATE532900T1 (en) | 2011-11-15 |
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