EP1048782B1 - Elastische Walze und Verfahren zum Herstellen einer solchen - Google Patents
Elastische Walze und Verfahren zum Herstellen einer solchen Download PDFInfo
- Publication number
- EP1048782B1 EP1048782B1 EP00105584A EP00105584A EP1048782B1 EP 1048782 B1 EP1048782 B1 EP 1048782B1 EP 00105584 A EP00105584 A EP 00105584A EP 00105584 A EP00105584 A EP 00105584A EP 1048782 B1 EP1048782 B1 EP 1048782B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- particles
- matrix material
- roll
- accordance
- fibre
- 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.)
- Expired - Lifetime
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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
- D21G1/0233—Soft rolls
Definitions
- the present invention relates to a roller, in particular for smoothing of paper webs, with a hard one consisting in particular of metal Roll core with an elastic cover layer on the outside is provided, which is made of an elastic matrix material and in the There is matrix material embedded fillers. Furthermore, the invention directed to a method of making such a roller.
- Elastic rollers of this type are used, for example, when satinizing paper webs.
- An elastic roller forms a press nip with a hard roller through which the paper web to be processed is passed. While the hard roller has a very smooth surface, for example made of steel or chilled cast iron, and is responsible for smoothing the side of the paper web facing it, the elastic roller acting on the opposite side of the paper web causes the paper web to be leveled and compressed in the press nip.
- the size of the rollers is 3 to 12 m in length and 450 to 1500 mm in diameter. They withstand line forces up to 600 N / mm and compressive stresses up to 130 N / mm 2 .
- plastic coverings maximum temperature differences of about 20 ° C over the Width of the roller permitted and on the other hand have that for the coating
- plastics used are much higher Thermal expansion coefficients than those commonly used Steel rollers or chill cast rollers, so that by an increase in temperature high axial tensions between the steel roller or chilled iron roller and the associated plastic coating occur.
- EP-A-0146342 discloses a roller with a two-layer reference layer known. To improve heat dissipation is the inside Reference layer thermally conductive formed by in the matrix material thermally conductive fillers are introduced into the reference layer. From the US-PS-5142759 is also a roller with an elastic reference layer known. For draining off the surface of the reference layer occurring electrostatic charges are electrical in the reference layer conductive fillers embedded.
- the reference layer consists of several Layers of an elastic matrix material, each with an unreinforced Alternate layer with a layer reinforced with fiber layers.
- the part of the task relating to the roller is based on the invention by a roller of the type mentioned by the features of Claim 1 solved.
- the method according to the invention is characterized by the features of claim 11.
- both the thermal conductivity and the rigidity of the elastic Reference layer improved. Due to the increased thermal conductivity the overheating heat occurring at critical points is dissipated more quickly so that the critical temperature and thereby preventing hot spots from occurring. It is special the elongated formation of the particles for rapid heat dissipation advantageous from critical points, for example in the direction of the roll core.
- the elongated rod shape of the particles also leads to the fact that those Particles that are oriented essentially in the radial direction, selectively increase the stiffness of the elastic cover layer.
- the Elongated rod-shaped particles thus have an elastic reference layer Variety of points with increased stiffness, so that with a corresponding equipped roller transparent paper can be produced. Since the Particle length less than the radial thickness of the elastic reference layer the elongated particles do not extend from the Surface of the reference layer to the roller core, but it can be found areas between individual particles that are free of the particles, so that a certain elasticity of the reference layer is retained, whereby the quality of the tracing paper produced compared to a complete one stiff coating is increased.
- the elongated ones designed according to the invention preferably have Particles have a ratio of their length to their thickness of between approximately 20: 1 and 5: 1, in particular of approximately 15: 1 and 7: 1, preferably of approximately 10: 1. With These preferred ratios become an ideal combination between Stiffness and elasticity of the cover layer achieved.
- the elongated Particles are advantageous in radial in the matrix material and / or essentially statistically distributed in the axial direction, whereby uniform rigidity with uniform elasticity of the cover layer is reached over the length of the roller.
- Particles in the matrix material are essentially radial Direction aligned so that the majority of the particles the stiffness of the elastic reference layer is defined. in principle it is also possible that the particles in the matrix material essentially statistically distributed, i.e. evenly aligned in all directions are. In this case the stiffness of the reference layer is lower, however, at the same time the thermal conductivity of the reference layer in axial direction is increased.
- the particles are formed from thermally conductive material, the thermal conductivity of the particles is higher than that of the matrix material.
- the thermal conductivity of the reference layer Depending on the amount of the introduced Particles will have the thermal conductivity of the reference layer this way increased, in particular by the radial direction aligned elongated particles a derivative of excess Heat within the reference layer to the metallic roll core takes place so that unwanted heat within the reference layer quickly to the roller core and can be discharged laterally via this.
- the particles forming the fillers can all be made from the same Material or be made of different materials.
- Coefficient of thermal expansion of the particles smaller than that of the matrix material.
- the total coefficient of thermal expansion the reference layer is smaller than that of the matrix material, so that the total coefficient of thermal expansion at the coefficient of thermal expansion of the roll core can be adjusted. Thereby the longitudinal stresses that occur when the roller is heated reduced between the reference layer and the roll core.
- a Part of the particles radially outwards to the surface of the elastic reference layer can already do this be introduced into the reference layer so that they are up to extend their surface. If the surface of the reference layer sanded after being applied to produce a high surface smoothness the elongated particles cannot at first reach all the way to the surface of the reference layer. After grinding the The ends of the elongated particles ultimately lie freely on the surface the surface so that they have the desired points of stiffness form.
- Advantageous values for average lengths of the invention elongated particles are between approximately 200 and 600 ⁇ m, in particular between about 300 and 500 microns, preferably at about 400 microns.
- the elongated Particles therefore have a length that is significantly below that Length of in the elastic reference layer, for example as reinforcement layers provided fibers, for example carbon fibers.
- fibers are preferred embedded. These fibers can be in rovings or as nonwoven on the Roll core are applied and are usually used for reinforcement the elastic reference layer.
- the Fibers arranged in radially successive layers of fibers can be spaced from one another or directly abut each other.
- the elastic reference layer between about 5 and 100, in particular between about 20 and 70, preferred 30 to 40 fiber layers are available.
- the reference layer can also have more or fewer fiber layers his.
- the fiber layers reinforce the elastic reference layer achieved since usually only one consisting of matrix material Reference layer does not have the rigidity required for the satin finish. If the elastic reference layer is formed from several However, there is a risk of fiber layers if the connection is insufficient a tendency for the fiber layers to separate between the individual fiber layers exist.
- the elongated particles are arranged between such a tendency to detach is counteracted by the individual fiber layers, because the elongated particles are particularly radial an additional connection between the individual fiber layers create.
- the compensating thermal expansion coefficient also the service life a reference layer designed according to the invention by reduced Transfer tendency to be improved.
- Fig. 1 shows a part of a cut in the longitudinal direction, for example existing steel or cast iron roll core 1, the outside with an elastic reference layer, also shown in section 2 is provided.
- the reference layer 2 consists of an elastic matrix material 3, in particular from a resin / hardener combination in which a variety of Fibers 4 are embedded.
- the fibers 4 for example around carbon fibers or around glass fibers or a mixture of Trade carbon and glass fibers.
- the fibers 4 are essentially in aligned in the axial direction of the roller core 1 and form a fiber layer 5, which is applied, for example, by winding on the roll core 1 has been.
- the fibers 4, on the one hand increase the rigidity of the reference layer 2 compared to a reference layer made of pure plastic increased and at the same time, especially when using carbon fibers, improves thermal conductivity in the axial direction.
- these fillers include elongated, rod-shaped particles 6 and on the other hand fine-grained, the filler forming fine particles 7. While the fine particles are substantially quasi-spherical are formed and a diameter of, for example Have 10 to 20 microns, have the elongated rod-shaped particles a length of about 400 microns, for example.
- Some of the elongated ones Particles 6 each extend with one end to the surface 8 of the reference layer 2, while others of the elongated particles 6 with their respective ends up to the surface 9 of the roll core 1 extend. All elongated particles 6 are however so formed so that its length is shorter than the radial thickness of the reference layer Second
- the particles 6 reaching to the surface 8 of the reference layer 2 form 8 punctiform points 10 with increased rigidity on this surface, that with a uniform distribution of the particles 6 in the reference layer 2 accordingly evenly over their entire surface 8 are distributed. In particular with an essentially radial alignment the particle 6 becomes the stiffness of the reference layer at the points 10 2 significantly increased over their remaining areas.
- the roller shown in FIG. 1 can be used for the production of transparent paper be used.
- the thermal conductivity of the reference layer 2 increases because the particles 6 have better thermal conductivity possess than the matrix material 3 Direction or inclined particles 6 in particular the Thermal conductivity of the reference layer 2 improved in the radial direction, so that in addition to the improved thermal conductivity by the fiber layer 5 in the axial direction an improvement in a perpendicular to it direction.
- the total thermal expansion coefficient approaches the reference layer 2 the expansion coefficient of the roll core 1. This applies especially when a large number of the particles 6 are oblique or essentially are arranged extending in the axial direction. Because the matrix material 3 usually has a significantly higher coefficient of thermal expansion owns than the roller core 1 can by reducing of the total thermal expansion coefficient of the reference layer 2 due to the elongated particles 6 when the roller is heated longitudinal stresses occurring between the roll core 1 and the reference layer be reduced.
- the punctiform fine particles 7 can also be adapted the coefficient of thermal expansion of the reference layer 2 to the coefficient of thermal expansion serve the roll core 1 or other desired Define physical properties of the reference layer. Possibly the fine particles 7 can also be completely eliminated.
- the fiber layer 5 can, for example, by winding fiber rovings or Nonwoven fabric can be produced on the roll core 1. This is more clearly shown in Fig. 2 to recognize where two fiber layers arranged radially spaced apart from one another 5 ', 5 "are shown schematically.
- the fibers or fiber rovings can be in the liquid state before winding Matrix material 3 can be applied, for example, by a Matrix bath are drawn. However, it is also possible that the fibers or the fiber rovings are wound dry on the roll core 1 and soaked with or during matrix winding until you are completely surrounded by it. To be a smooth To reach surface 8 of the roller after the winding process top layer of the matrix material 3 is sanded off, creating a multitude of the elongated particles 6 appear on the surface 8 and thus form the punctiform points 10 of increased rigidity.
- the two fiber layers 5 ′, 5 ′′ are connected to one another via the matrix material 3 connected, the lower fiber layer 5 "also via the matrix material 3 is connected to the surface 9 of the roll core 1.
- the Reference layer 2 in the area of the fiber layers 5 ', 5 "due to the interlocking Fibers 4 is very stable, consists of the dashed Lines 11, 12 indicated areas between the fiber layers 5 'and 5 " or between the fiber layer 5 “and the surface 9 of the roll core 1 the risk that the reference layer will become detached when subjected to the appropriate stress 2 of the roll core 1 or the two the fiber layers 5 ', 5 " containing partial areas of the reference layer 2 from each other.
- the elongated rod-shaped particles 6 is just in the endangered areas 11, 12 the connection of the different Sub-layers of the reference layer 2 improved.
- the elongated particles 6 form reinforcing bridges in the radial direction, so that the overall stability the reference layer 2 significantly increased in the radial direction becomes.
- the described tendency to detachment is according to the invention trained reference layer 2 is therefore not given.
Landscapes
- Rolls And Other Rotary Bodies (AREA)
- Laminated Bodies (AREA)
- Paper (AREA)
Description
- Fig. 1
- einen Teillängsschnitt durch eine erfindungsgemäß ausgebildete Walze mit elastischer Bezugsschicht und
- Fig. 2
- eine weitere Ausführungsform einer erfindungsgemäß ausgebildeten Walze.
- 1
- Walzenkern
- 2
- Bezugsschicht
- 3
- Matrixmaterial
- 4
- Fasern
- 5, 5', 5"
- Faserlagen
- 6
- langgestreckte stäbchenförmige Teilchen
- 7
- Feinteilchen
- 8
- Oberfläche der Bezugsschicht
- 9
- Oberfläche des Walzenkerns
- 10
- punktförmige Stellen
- 11
- gestrichelte Linie
- 12
- gestrichelte Linie
Claims (15)
- Walze, insbesondere zum Glätten von Papierbahnen, mit einem insbesondere aus Metall bestehenden harten Walzenkern (1), der an seiner Außenseite mit einer elastischen Bezugsschicht (2) versehen ist, die aus einem elastischen Matrixmaterial (3) und in das Matrixmaterial (3) eingebetteten Füllstoffen (6, 7) besteht,
dadurch gekennzeichnet , dass zur Erzeugung einer Vielzahl von Punkten (10) mit erhöhter Steifigkeit innerhalb der Bezugsschicht (2)zumindest ein Teil der Füllstoffe (6, 7) als langgestreckte, stäbchenförmige Teilchen (6) ausgebildet ist,die Teilchen (6) eine höhere Steifigkeit als das Matrixmaterial (3) besitzen,zumindest ein Teil der Teilchen (6) in dem Matrixmaterial (3) im Wesentlichen in radialer Richtung ausgerichtet ist, unddie Länge der Teilchen (6) kleiner als die radiale Dicke der elastischen Bezugsschicht (2) ist, - Walze nach Anspruch 1,
dadurch gekennzeichnet, daß die Teilchen (6) ein Verhältnis Länge zu Dicke von zwischen ca. 20:1 und 5:1, insbesondere von zwischen ca. 15:1 und 7:1, bevorzugt von ca. 10:1 besitzen und/oder daß die Teilchen (6) in dem Matrixmaterial (3) in radialer und/oder in axialer Richtung im wesentlichen statistisch verteilt sind. - Walze nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß ein überwiegender Teil der Teilchen (6) in dem Matrixmaterial (3) im wesentlichen in radialer Richtung ausgerichtet ist. - Walze nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß sich ein Teil der Teilchen (6) radial nach innen bis zur Oberfläche (9) des Walzenkerns (1) erstreckt und/oder daß der Wärmeausdehnungskoeffizient der Teilchen (6) kleiner ist als der des Matrixmaterials (3). - Walze nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß sich ein Teil der Teilchen (6) radial nach außen bis zur Oberfläche (8) der elastischen Bezugsschicht (2) erstreckt und/oder daß die Teilchen (6) eine durchschnittliche Länge von zwischen ca. 200 und 600 µm, insbesondere von zwischen ca. 300 und 500 µm, bevorzugt von ca. 400 µm besitzen und/oder daß die Teilchen (6) aus Wollastonit und/oder aus Calciumsilicat bestehen. - Walze nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß zusätzlich zu den Teilchen (6) in dem Matrixmaterial (3) Fasern (4) eingebettet sind, insbesondere daß die Fasern (4) in einer Faserlage (5) oder in radial aufeinanderfolgenden Faserlagen (5', 5") angeordnet sind, wobei bevorzugt die Faserlagen (5', 5") voneinander beabstandet sind oder die Faserlagen aneinander anliegen. - Walze nach Anspruch 6,
dadurch gekennzeichnet, daß in der elastischen Bezugsschicht (2) zwischen ca. 5 und 100, insbesondere zwischen ca. 20 und 70, bevorzugt ca. 30 bis 40 Faserlagen (5, 5', 5") vorhanden sind und/oder daß die Teilchen (6) zwischen den einzelnen Faserlagen (5', 5") angeordnet sind. - Walze nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Bezugsschicht radial außenliegende Funktionsschicht und eine radial innenliegende Verbindungsschicht zum Verbinden der Funktionsschicht mit dem Walzenkern umfaßt und daß die Teilchen zumindest in der Funktionsschicht angeordnet sind. - Walze nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet, daß die Fasern (4) als Glas- und/oder als Kohlefasern ausgebildet sind. - Walze nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Matrixmaterial (3) ein Kunststoff, insbesondere ein Duroplast oder ein Thermoplast ist und/oder daß das Matrixmaterial (3) aus einer Harz/Härter-Kombination besteht. - Verfahren zum Herstellen einer elastischen Walze mit einem insbesondere aus Metall bestehenden harten Walzenkern und einer aus einem elastischen Matrixmaterial bestehenden elastischen Bezugsschicht, insbesondere zum Herstellen einer Walze nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, dass zur Erzeugung einer Vielzahl von Punkten (10) mit erhöhter Steifigkeit innerhalb der Bezugsschicht (2)zumindest ein Füllstoff in Form von langgestreckten, stäbchenförmige Teilchen (6) in das elastische Matrixmaterial eingebracht wird,wobei die Teilchen (6) eine höhere Steifigkeit als das Matrixmaterial (3) besitzen,zumindest ein Teil der Teilchen (6) in dem Matrixmaterial (3) im Wesentlichen in radialer Richtung ausgerichtet werden unddie Länge der Teilchen (6) kleiner als die radiale Dicke der elastischen Bezugsschicht (2) gewählt wird, und - Verfahren nach Anspruch 11,
dadurch gekennzeichnet, daß zusätzlich zu den Teilchen in das elastische Matrixmaterial Fasern eingebettet werden. - Verfahren nach Anspruch 12,
dadurch gekennzeichnet, daß zur Erzeugung der Bezugsschicht zumindest ein aus einer Vielzahl von Fasern bestehendes Faserbündel, insbesondere in mehreren Faserlagen übereinander, auf den Walzenkern gewickelt wird und die Teilchen zwischen benachbarte Faserlagen und/oder zwischen Faserlage und die Oberfläche des Walzenkerns und/oder zwischen Faserlage und die Oberfläche der Bezugsschicht eingebracht werden, wobei insbesondere das Faserbündel durch einen oder mehrere Faserroving und/oder durch ein Faservlies gebildet wird, wobei ein Roving jeweils aus einer Vielzahl von nebeneinanderliegenden Fasern der gleichen Art besteht, und/oder daß das Faserbündel durch ein Faservlies gebildet wird. - Verfahren nach Anspruch 13,
dadurch gekennzeichnet, daß das Faserbündel vor dem Aufwickeln auf den Walzenkern mit dem Matrixmaterial umgeben werden, insbesondere durch ein Matrixbad gezogen wird und daß die Teilchen bereits in dem Matrixmaterial, insbesondere in dem Matrixbad, enthalten sind und/oder beim Aufwickeln in das das Faserbündel umgebende Matrixmaterial eingebracht werden, oder daß das Faserbündel im wesentlichen trocken auf den Walzenkern aufgewickelt wird und während oder nach dem Aufwickeln mit dem Matrixmaterial beaufschlagt, insbesondere vollständig in das Matrixmaterial eingebettet wird, und daß die Teilchen bereits in dem Matrixmaterial enthalten sind und/oder nach oder während des Beaufschlagens mit Matrixmaterial in dieses eingebracht werden. - Verfahren nach einem der Ansprüche 12 bis 14,
dadurch gekennzeichnet , daß als Fasern Glas- und/oder Kohlefasern verwendet werden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19919569 | 1999-04-29 | ||
DE19919569A DE19919569B4 (de) | 1999-04-29 | 1999-04-29 | Elastische Walze und Verfahren zum Herstellen einer solchen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1048782A1 EP1048782A1 (de) | 2000-11-02 |
EP1048782B1 true EP1048782B1 (de) | 2003-12-10 |
Family
ID=7906323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00105584A Expired - Lifetime EP1048782B1 (de) | 1999-04-29 | 2000-03-16 | Elastische Walze und Verfahren zum Herstellen einer solchen |
Country Status (3)
Country | Link |
---|---|
US (1) | US6428455B1 (de) |
EP (1) | EP1048782B1 (de) |
DE (2) | DE19919569B4 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7802377B2 (en) * | 2005-01-05 | 2010-09-28 | Voith Patent Gmbh | Drying cylinder |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU5325999A (en) | 1998-07-31 | 2000-02-21 | Shuttleworth Inc. | Low electrostatic discharge conveyor |
DE10046055A1 (de) | 2000-09-18 | 2002-03-28 | Voith Paper Patent Gmbh | Elastische Walze |
US6993861B2 (en) | 2001-07-06 | 2006-02-07 | Esco Corporation | Coupling for excavating wear part |
DE10159360A1 (de) * | 2001-12-04 | 2003-06-12 | Voith Paper Patent Gmbh | Verfahren zum Aufwickeln einer laufenden Materialbahn sowie Wickelmaschine zur Durchführung des Verfahrens |
AU2002367127B2 (en) * | 2001-12-26 | 2007-02-15 | Yamauchi Corporation | Fiber-reinforced resin roll and method of manufacturing the roll |
US20060138279A1 (en) * | 2004-12-23 | 2006-06-29 | Nathan Pisarski | Aircraft floor panel |
JP5162864B2 (ja) * | 2006-09-13 | 2013-03-13 | 株式会社リコー | 導電性部材、プロセスカートリッジ及び画像形成装置 |
DE102009029695A1 (de) * | 2009-09-23 | 2011-03-31 | Voith Patent Gmbh | Walzenbezug |
DE102012103079A1 (de) | 2012-04-10 | 2013-10-10 | Krones Ag | Rollenförderer für Kunststoffvorformlinge |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673025A (en) * | 1968-10-23 | 1972-06-27 | Yamauchi Rubber Ind Co Ltd | Method of making a polyurethane rubber covered roll |
WO1998054405A1 (en) * | 1997-05-30 | 1998-12-03 | Valmet Corporation | Thermoplastic-coated roll, method for manufacture of the roll, composition of thermoplastic coating, method of calendering by means of thermoplastic-coated rolls in accordance with the invention, and paper/board manufactured by means of such rolls |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1006990A (en) * | 1910-06-03 | 1911-10-24 | Samuel E Warren | Press-roll. |
US2959119A (en) * | 1956-09-28 | 1960-11-08 | Dow Chemical Co | Densening mill |
DE1057056B (de) * | 1956-10-30 | 1959-05-14 | Kuesters Eduard | Walze zum Abquetschen der Feuchtigkeit von Textilien, fuer Faerbezwecke, zum Kalandrieren oder dergleichen |
NL109349C (de) * | 1957-06-03 | |||
US3395636A (en) * | 1966-04-27 | 1968-08-06 | Sw Ind Inc | Construction of roll for machinery |
DE1807331A1 (de) * | 1968-11-06 | 1970-06-11 | Yamauchi Rubber Ind Co Ltd | Mit Polyurethan-Gummi beschichtete Walze und Verfahren zur Herstellung einer solchen Walze |
DE2005619C3 (de) * | 1970-02-07 | 1973-11-22 | Fa. Hermann Windel, 4814 Windelsbleiche | Verfahren zum Herstellen einer mit Fasern verstärkten Walze |
DE2128294C2 (de) * | 1971-06-07 | 1982-03-11 | J.C. Ludowici & Son Ltd., Castle Hill | Walzenmantel und Verfahren zu dessen Herstellung |
US3800381A (en) * | 1972-06-19 | 1974-04-02 | Beloit Corp | Covered roll for paper making |
US3852862A (en) * | 1972-11-08 | 1974-12-10 | New Hudson Corp | Roll and method of manufacture |
JPS6012688B2 (ja) * | 1977-07-11 | 1985-04-03 | 富士写真フイルム株式会社 | 磁気テ−プ用ス−パ−カレンダ−弾性ロ−ル |
JPS5936133B2 (ja) * | 1979-08-10 | 1984-09-01 | 山内ゴム工業株式会社 | ポリウレタン・ゴム・ロ−ル及びその製造方法 |
US4766996A (en) * | 1983-09-30 | 1988-08-30 | Garrett Aerospace | Rollers with oriented fiber reinforcement and method |
US4576845A (en) | 1983-12-15 | 1986-03-18 | Krc Inc. | Thermally conductive base layers for cast polyurethane roll covers |
JP2763290B2 (ja) * | 1987-02-04 | 1998-06-11 | キヤノン株式会社 | 定着ローラ及び定着装置 |
US5205398A (en) * | 1990-07-27 | 1993-04-27 | Eltech Systems Corporation | Insulating roll cover |
US5334124A (en) * | 1991-02-27 | 1994-08-02 | Nippon Oil Co., Ltd. | Guide rolls |
US5142759A (en) * | 1991-08-27 | 1992-09-01 | Beloit Corporation | Roll cover apparatus |
JP2614795B2 (ja) * | 1991-12-24 | 1997-05-28 | ニチアス株式会社 | ディスクロール |
DE4226789A1 (de) * | 1992-08-13 | 1994-02-17 | Sigri Great Lakes Carbon Gmbh | Faserverstärkte Kunststoffwalze mit äußerer, verschleißfester, füllerhaltiger Kunststoffschicht |
DE4340724A1 (de) * | 1993-11-30 | 1995-06-01 | Sigri Great Lakes Carbon Gmbh | Mit Fasern verstärkte Kunststoffwalze mit Rautierung |
-
1999
- 1999-04-29 DE DE19919569A patent/DE19919569B4/de not_active Expired - Fee Related
-
2000
- 2000-03-16 DE DE50004692T patent/DE50004692D1/de not_active Expired - Lifetime
- 2000-03-16 EP EP00105584A patent/EP1048782B1/de not_active Expired - Lifetime
- 2000-04-28 US US09/560,193 patent/US6428455B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673025A (en) * | 1968-10-23 | 1972-06-27 | Yamauchi Rubber Ind Co Ltd | Method of making a polyurethane rubber covered roll |
WO1998054405A1 (en) * | 1997-05-30 | 1998-12-03 | Valmet Corporation | Thermoplastic-coated roll, method for manufacture of the roll, composition of thermoplastic coating, method of calendering by means of thermoplastic-coated rolls in accordance with the invention, and paper/board manufactured by means of such rolls |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7802377B2 (en) * | 2005-01-05 | 2010-09-28 | Voith Patent Gmbh | Drying cylinder |
Also Published As
Publication number | Publication date |
---|---|
DE19919569A1 (de) | 2000-11-02 |
EP1048782A1 (de) | 2000-11-02 |
DE19919569B4 (de) | 2011-07-07 |
US6428455B1 (en) | 2002-08-06 |
DE50004692D1 (de) | 2004-01-22 |
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