CH666332A5 - Metal clad synthetic resin roller - Google Patents
Metal clad synthetic resin roller Download PDFInfo
- Publication number
- CH666332A5 CH666332A5 CH341/85A CH34185A CH666332A5 CH 666332 A5 CH666332 A5 CH 666332A5 CH 341/85 A CH341/85 A CH 341/85A CH 34185 A CH34185 A CH 34185A CH 666332 A5 CH666332 A5 CH 666332A5
- Authority
- CH
- Switzerland
- Prior art keywords
- roller
- plastic
- synthetic resin
- resin
- metal
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 title claims abstract description 11
- 229920003002 synthetic resin Polymers 0.000 title abstract 2
- 239000000057 synthetic resin Substances 0.000 title abstract 2
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000004952 Polyamide Substances 0.000 claims abstract description 3
- 239000004743 Polypropylene Substances 0.000 claims abstract description 3
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 3
- 239000010439 graphite Substances 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 3
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 3
- 229920002647 polyamide Polymers 0.000 claims abstract description 3
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 3
- 239000004417 polycarbonate Substances 0.000 claims abstract description 3
- -1 polypropylene Polymers 0.000 claims abstract description 3
- 229920001155 polypropylene Polymers 0.000 claims abstract description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 3
- 239000004593 Epoxy Substances 0.000 claims abstract 2
- 229920000728 polyester Polymers 0.000 claims abstract 2
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 7
- 239000004917 carbon fiber Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 229920005992 thermoplastic resin Polymers 0.000 claims description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Laminated Bodies (AREA)
Abstract
A roller consists of a hollow cylindrical body, of carbon fibre reinforced synthetic resin, coated with a layer of wear resistant metal, pref. of nickel or chromium. Depending upon application the resin may be thermosetting, e.g. epoxy, polyester or phenol formaldehyde, or thermo-plastic, e.g. polypropylene, polyamide or polycarbonate. The reinforcement including graphite fibres, may be short lengths evenly dispersed or oriented layers including longer lengths as required. The metal layer may vary between 10 and 1000 microm thickness. It is electrodeposited on a chemically applied copper undercoating.
Description
BESCHREIBUNG
Die Erfindung betrifft eine Walze mit einem hohlzylindrischen Walzenkörper und eine Rotationsmaschine zur Herstellung von Folien und Filmen mit den Walzen.
Mit hohen Drehzahlen beaufschlagte Walzen sind grossen Fliehkräften ausgesetzt, deren Grösse u.a. der Walzenmasse proportional ist. Die an schnell drehenden metallischen Walzen mit vergleichsweise grosser Masse anliegenden Kräfte verformen die zylindrischen Walzen zu tonnenförmigen Körpern, so dass die Spaltbreite zwischen zwei Walzen oder einer Walze und einem feststehenden Gegenkörper über die Länge der Walze nicht konstant ist. Walzprodukte werden entsprechend verformt und ungleichmässig belastet.
Andere Nachteile metallischer Walzen grosser Masse sind das hohe Widerstandsmoment und die vergleichsweise grossen, als Folge von Unsymmetrien gebildeten, mit Unwucht bezeichneten Kräfte, die allgemein mit der Dichte des Walzenmaterials wachsen. Ein gewichtiger Vorteil metallischer Walzen ist andererseits die glatte, mehr oder weniger verschleissfeste Oberfläche, eine Bedingung für die Herstellung eines Walzprodukts mit hoher Oberflächengüte.
Der Erfindung liegt die Aufgabe zugrunde, die Verformung von hohlzylindrischen Walzen durch Fliehkräfte zu vermindern, die Widerstandsmomente und die Unwucht.
kräfte zu senken, ohne die Güte der Mantelfläche zu beeinträchtigen.
Die Aufgabe wird erfindungsgemäss dadurch gelöst, dass der Walzenkörper aus einem mit Kohlenstoffasern verstärkte Kunststoff besteht und sein Mantel mit einem Metall beschichtet ist.
Unter dem Begriff mit Kohlenstoffasern verstärktem Kunststoff werden Harzkörper mit eingelagerten Kohlenstoffasern verstanden. Wegen der grösseren thermischen Beständigkeit und der geringeren Plastizität sind im allgemeinen duroplastische Harze für den Walzenkörper vorzuziehen, z.B. Epoxidharze, Polyesterharze oder Phenolformaldehydharze, obgleich unter bestimmten Bedingungen auch thermoplastische Harze geeignet sind, z.B. Polypropylen, Polyamide oder Polycarbonate. Die verstärkenden Kohlenstoffasern - unter diesem Begriff sind ebenfalls Graphitfasern zu verstehen - sind in Form von Kurzschnittfasern mehr oder weniger statistisch in der Harzmatrix verteilt oder bevorzugt schichtig angeordnet.
Schichtige Anordnungen ermöglichen, eine grössere Fasermenge in eine gegebene Harzmatrix einzuarbeiten und die Fasern entsprechend den tatsächlichen Belastungsbedingungen zu orientieren. Beide Massnahmen erhöhen Festigkeit und Steifigkeit des Walzenkörpers. Beispiele sind unidirektionale Wickelkörper und bandförmig laminierte Hohlzylinder.
Die Dichte der hohlzylindrischen Walzenkörper aus kohlenstoffverstärktem Kunststoff beträgt etwa 1,5 bis 1,6 g/cm3, gegen etwa 7,8 g/cm3 für Stahl. Festigkeit und Elastizitätsmodul sind u.a. Funktionen der verwendeten Fasersorte, der Fasermenge und -orientierung und der Harzart. Mittlere Werte sind etwa 500 bis 1000 MPa (Zugfestigkeit) und 50 bis 100 GPa (E-Modul) gegen etwa 1100 MPa und 210 GPa für Stahl. Die Masse des holzylindrischen Walzenkörpers nach der Erfindung beträgt entsprechend bei nur geringfügig kleinerem Widerstandsmoment nur ein Fünftel der Masse einer Stahlwalze.
Die metallische Oberflächenbeschaffenheit erhält der Walzenkörper durch die Beschichtung mit einem Metall, besonders einer widerstandsfähigen Nickel- oder Chromlegierung. Die Art des Metalls und die Dicke der Metallbeschichtung, die etwa 10 bis 1000 Rm betragen kann, richten sich im einzelnen nach den Verwendungsbedingungen der Walzen. Zum Aufbringen der Metallbeschichtung wird beispielsweise der aus kohlenstoffaserverstärktem Kunststoff bestehende Walzenkörper chemisch gebeizt oder geätzt, auf die aufgerauhte Mantelfläche stromlos eine Kupferschicht abgeschieden und dann eine Metallschicht beliebiger Dicke galvanisch aufgebracht. Die Oberflächenbeschaffenheit der beschichteten Walze ist identisch mit durchgehend metallischen Walzen, deren Masse wie oben beschrieben etwa fünfmal grösser ist.
Die Erfindung wird im folgenden anhand von Zeichnungen beispielsweise näher erläutert. Es zeigen schematisch in perspektivischer Ansicht:
Fig. 1 eine hohlzylindrische Walze, bekannter Bauart, und
Fig. 2 eine hohlzylindrische, teilweise aufgeschnittene Walze nach der Erfindung.
In Fig. list eine Walze 1 mit einem hohlzylindrischen Walzenkörper 2 und einem Lagerzapfen 3 dargestellt, der in beliebiger Weise kraft- oder formschlüssig mit dem Walzenkörper 2 verbunden ist.
In Fig. 2 besteht der Walzenkörper 2 aus einem Hohlzylinder aus mit Kohlenstoffasern verstärktem Kunststoff 4, der mit einer Schicht aus einem widerstandsfähigen Metall 5 versehen ist.
Die erfindungsgemässen Walzen zeichnen sich durch eine geringe Masse und eine hohe Steifigkeit aus. Sie eignen sich in erster Linie für Rotationsmaschinen zur Herstellung von Folien und Filmen mit hohen Drehzahlen, die insbesondere mit über etwa 1000 U/min laufen.
DESCRIPTION
The invention relates to a roller with a hollow cylindrical roller body and a rotary machine for the production of foils and films with the rollers.
Rollers at high speeds are exposed to high centrifugal forces, the size of which is proportional to the roll mass. The forces applied to rapidly rotating metallic rollers with a comparatively large mass deform the cylindrical rollers into barrel-shaped bodies, so that the gap width between two rollers or one roller and a stationary counter body is not constant over the length of the roller. Rolled products are deformed accordingly and loaded unevenly.
Other disadvantages of large-diameter metallic rolls are the high section modulus and the comparatively large, unbalanced forces which are formed as a result of asymmetries and which generally grow with the density of the roll material. On the other hand, a major advantage of metallic rollers is the smooth, more or less wear-resistant surface, a condition for the production of a rolled product with a high surface quality.
The invention has for its object to reduce the deformation of hollow cylindrical rollers by centrifugal forces, the moments of resistance and the unbalance.
lower forces without impairing the quality of the outer surface.
The object is achieved according to the invention in that the roller body consists of a plastic reinforced with carbon fibers and its jacket is coated with a metal.
The term plastic reinforced with carbon fibers means resin bodies with embedded carbon fibers. Because of the greater thermal resistance and lower plasticity, thermosetting resins are generally preferred for the roll body, e.g. Epoxy resins, polyester resins or phenol formaldehyde resins, although under certain conditions thermoplastic resins are also suitable, e.g. Polypropylene, polyamides or polycarbonates. The reinforcing carbon fibers - this term is also to be understood as graphite fibers - are distributed in the form of short cut fibers more or less statistically in the resin matrix or are preferably arranged in layers.
Layered arrangements enable a larger amount of fibers to be incorporated into a given resin matrix and the fibers to be oriented according to the actual loading conditions. Both measures increase the strength and rigidity of the roller body. Examples are unidirectional bobbins and laminated hollow cylinders.
The density of the hollow cylindrical roller body made of carbon-reinforced plastic is approximately 1.5 to 1.6 g / cm3, compared to approximately 7.8 g / cm3 for steel. Strength and modulus of elasticity include Functions of the type of fiber used, the amount and orientation of the fibers and the type of resin. Mean values are about 500 to 1000 MPa (tensile strength) and 50 to 100 GPa (modulus of elasticity) against about 1100 MPa and 210 GPa for steel. The mass of the wood-cylindrical roller body according to the invention is correspondingly only a fifth of the mass of a steel roller with only a slightly smaller section modulus.
The roller body obtains the metallic surface quality from the coating with a metal, in particular a resistant nickel or chrome alloy. The type of metal and the thickness of the metal coating, which can be approximately 10 to 1000 μm, depend in particular on the conditions of use of the rollers. To apply the metal coating, for example, the roller body made of carbon fiber reinforced plastic is chemically pickled or etched, a copper layer is electrolessly deposited on the roughened outer surface and then a metal layer of any thickness is applied galvanically. The surface quality of the coated roller is identical to continuous metallic rollers, the mass of which is about five times greater, as described above.
The invention is explained in more detail below with reference to drawings, for example. They show schematically in perspective view:
Fig. 1 is a hollow cylindrical roller, known type, and
Fig. 2 is a hollow cylindrical, partially cut roller according to the invention.
FIG. 1 shows a roller 1 with a hollow cylindrical roller body 2 and a bearing journal 3, which is connected to the roller body 2 in a non-positive or positive manner in any way.
2, the roller body 2 consists of a hollow cylinder made of plastic 4 reinforced with carbon fibers, which is provided with a layer of a resistant metal 5.
The rolls according to the invention are notable for their low mass and high rigidity. They are primarily suitable for rotary machines for the production of foils and films with high speeds, which in particular run at about 1000 rpm.
Claims (8)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8406019 | 1984-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH666332A5 true CH666332A5 (en) | 1988-07-15 |
Family
ID=6764120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH341/85A CH666332A5 (en) | 1984-02-28 | 1985-01-25 | Metal clad synthetic resin roller |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE901753A (en) |
| CH (1) | CH666332A5 (en) |
| IT (1) | IT1184325B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0593084A2 (en) * | 1992-10-16 | 1994-04-20 | OFFICINA MECCANICA DI CARU MARCO & C. | Cylinders made of high speed rollers for raising machines, and process for making such rollers |
| US5324248A (en) * | 1992-11-03 | 1994-06-28 | Composite Development Corporation | Composite machine roll and method of manufacture |
| US5411463A (en) * | 1993-10-13 | 1995-05-02 | Albany International Corp. | Composite roll and method of making |
| US5609553A (en) * | 1992-11-09 | 1997-03-11 | American Roller Company | Ceramic roller for ESA printing and coating |
| WO1998058182A1 (en) * | 1997-06-16 | 1998-12-23 | Amal Aktiebolag | Method for producing a bending-resistant, elongated body and an arrangement for a bending-resistant, elongated body |
| US7241253B2 (en) * | 2003-02-11 | 2007-07-10 | Illinois Tool Works Inc | Fuser roll with improved heating performance |
| DE102007021158A1 (en) * | 2007-05-05 | 2008-11-06 | Manroland Ag | Printing press cylinder |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0385948A1 (en) * | 1989-03-02 | 1990-09-05 | HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE | Cylinder for the pressure treatment of web-shaped materials, use of a strip-like flat body for manufacturing a carrying tube, and use of a carrier tube of fibre-reinforced plastic |
| GB8925103D0 (en) * | 1989-11-07 | 1989-12-28 | Courtaulds Plc | Improved roller |
-
1985
- 1985-01-25 CH CH341/85A patent/CH666332A5/en not_active IP Right Cessation
- 1985-02-15 BE BE0/214531A patent/BE901753A/en not_active IP Right Cessation
- 1985-02-26 IT IT19657/85A patent/IT1184325B/en active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0593084A2 (en) * | 1992-10-16 | 1994-04-20 | OFFICINA MECCANICA DI CARU MARCO & C. | Cylinders made of high speed rollers for raising machines, and process for making such rollers |
| EP0593084A3 (en) * | 1992-10-16 | 1995-04-19 | Caru & C Snc Off Mecc | High speed rollers, particularly for raising machines, and process for making such rollers. |
| US5324248A (en) * | 1992-11-03 | 1994-06-28 | Composite Development Corporation | Composite machine roll and method of manufacture |
| US5609553A (en) * | 1992-11-09 | 1997-03-11 | American Roller Company | Ceramic roller for ESA printing and coating |
| US5411463A (en) * | 1993-10-13 | 1995-05-02 | Albany International Corp. | Composite roll and method of making |
| WO1998058182A1 (en) * | 1997-06-16 | 1998-12-23 | Amal Aktiebolag | Method for producing a bending-resistant, elongated body and an arrangement for a bending-resistant, elongated body |
| US7241253B2 (en) * | 2003-02-11 | 2007-07-10 | Illinois Tool Works Inc | Fuser roll with improved heating performance |
| DE102007021158A1 (en) * | 2007-05-05 | 2008-11-06 | Manroland Ag | Printing press cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1184325B (en) | 1987-10-28 |
| BE901753A (en) | 1985-05-29 |
| IT8519657A0 (en) | 1985-02-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |