EP0902100B1 - Thermisches Spritzverfahren für Trägerkörper und Vorrichtung zur Durchführung des Verfahrens - Google Patents
Thermisches Spritzverfahren für Trägerkörper und Vorrichtung zur Durchführung des Verfahrens Download PDFInfo
- Publication number
- EP0902100B1 EP0902100B1 EP98111596A EP98111596A EP0902100B1 EP 0902100 B1 EP0902100 B1 EP 0902100B1 EP 98111596 A EP98111596 A EP 98111596A EP 98111596 A EP98111596 A EP 98111596A EP 0902100 B1 EP0902100 B1 EP 0902100B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base body
- cylindrical surface
- support cylinder
- pull
- spray
- 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
Links
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
- C23C4/185—Separation of the coating from the substrate
Definitions
- the invention relates to a thermal spray process for the production of Carrier bodies and a device for performing the method, wherein the obtained carrier body used in particular in the graphics industry can be.
- DE 41 40 768 C2 discloses a method for producing an offset printing form a metallic material for a forme cylinder of a printing press.
- the plate-shaped blank is opened for printing plate production conventional type coated and exposed, after which the rectangular plate in a welding device by bending into a Bring hollow cylinder shape and clamped there in register.
- the one on top of the other facing edges of the plate are seam welded together longitudinally, whereby the welding process is carried out in such a way that a weld seam is formed which is on the top and Bottom each has a concave shape.
- the resulting printing form can be exposed to the plate-shaped blank coated and exposed on the forme cylinder.
- a disadvantage of this manufacturing process is the fact that the length is stretched of the plate-shaped blank, which will later give the diameter, exactly parallel and with a correspondingly high accuracy of significantly better than 1/10 mm tailor. It also causes the introduction of heat when welding a longitudinal distortion of the material in the weld area. This elongation leads to a ripple on both sides along the weld. When using a sleeve produced in this way leads to the inevitable waviness in the seam area to the fact that air pockets occur, which are under external pressure on the sleeve this migrate, which causes the sleeve to twist on the cylinder. This results in the need for an additional operation subsequent calibration of such sleeves made according to this procedure has been.
- DE 39 08 999 C2 discloses a cylinder body and a method for coating of the cylindrical body. It is proposed to make a cylindrical body like this to provide with a seamless coating that as a coating material thixotropic multi-component material in the form of a propellant and inhibitor staggered, flowing foam with rotation and feed on the cylindrical body is applied approximately in a spiral.
- a coating material thixotropic multi-component material in the form of a propellant and inhibitor staggered, flowing foam with rotation and feed on the cylindrical body is applied approximately in a spiral.
- metallic aluminum or a carbon fiber reinforced plastic is used.
- plastic sleeves also has disadvantages. For example in view of the considerably lower modulus of elasticity, these have to be increased Wall thickness are made to be comparable to metallic sleeves Achieve seat strength. High wall thicknesses in turn, for example in the Application of functional layers of higher temperature to be treated are exposed to temperature, resulting in loss of Dimensional accuracy and build up high internal stresses.
- EP 0 421 145 A2 and EP 0 715 966 A1 are sleeve-shaped rubber blankets become known, which laterally on blanket cylinders from Have rotary printing presses installed.
- the rubber coating is on Nickel sleeves applied.
- the nickel sleeves are electroplated manufactured.
- a mother cylinder is inserted into the nickel bath a thin nickel skin, which later after reaching the required wall thickness is rolled from the master cylinder.
- the nickel sleeve production in this way has an increased power requirement and is extremely time consuming.
- Thermal spraying processes are used today for a wide variety of components such as machine components, implants or building components with a large number coating of materials.
- the spraying methods used in the coating and spray filler materials are highly application-specific.
- Classical Areas of application of thermal spraying are wear and tear Corrosion protection, the repair coating and thermal or electrical insulation and often a combination of these goals.
- GB-A 1 410 169 discloses a process for producing thermally sprayed endless Layers in which a shaping base body in the form of a plate or Provide a cylinder with a release agent and a metal or a on the base body Ceramic rotating the same and feeding a spray head to form a Spray layer is sprayed on, which is then from the forming base is replaced.
- FR-A 2 472 033 describes a method for producing a sleeve-shaped endless Body made of thermally sprayed material, which on the cylinder one Rotary printing machine is windable.
- GB-A 1 215 184 describes the use of graphite or silicone as a release agent between a cylinder and a layer applied thereon.
- the advantages resulting from the solution according to the invention are diverse in nature.
- the layers produced according to the inventive method of the here simply detach the form-giving body.
- Which is during the spraying process resulting ductile, elastic layer is very similar to solid material and thus gives it gained body an elasticity that its easy handling enables.
- the ductility of the body allows one Expanding the body for mounting on a cylinder of a graphic Machine; after switching off one necessary to expand the ductile body
- the body can be pressurized on the circumference using a press fit be held by a cylinder. It can be both Actuate transfer cylinder as well as a printing form cylinder on which the sleeve-shaped body produced according to the invention can be drawn up.
- Next Applications for the offset method are also the application of the invention preserving sleeve-shaped body in the gravure process conceivable.
- the metal or the metal alloy or the self-flowing alloy can be sprayed on in accordance with the flame spraying process.
- the arc spraying process can also be used, as can the high-speed flame spraying process.
- the material to be sprayed on can be an oxide or also carbides or ceramic-metal mixtures (cermets). In order to prepare the outer surface of the shaping base body for the thermal spray layer to be produced, this must be conditioned, for which purpose a blasting process is used.
- a roughness of the lateral surface is brought about, which is characterized in that the elevations determining the roughness have a round contour.
- the roughness of the outer surface of the shaping body is R z 25 ⁇ m.
- the material preferably used to produce the rough surface in the blasting process to be used is glass spheres.
- the pressure prevailing in the blasting process for spraying the glass balls is between 2.5 and 3.5 bar.
- the conditioned outer surface of the shaping base body is provided with a layer of a release agent which is up to 5 ⁇ m thick.
- the release agent can be powdered graphite dust or silicone can also be used. It is also possible to use Teflon as a release agent.
- the device according to the invention for carrying out the thermal Spraying method comprises a shaping body, which is a support cylinder as well as a pull-off blank, wherein between the support cylinder and the Pulling round a deflection bevel is formed, which is a constriction in the thermal applied spray layer generated.
- a shaping body which is a support cylinder as well as a pull-off blank, wherein between the support cylinder and the Pulling round a deflection bevel is formed, which is a constriction in the thermal applied spray layer generated.
- An extraction chamber is provided, which is equipped with a Pressure medium through the pull-off disc or through the support cylinder is pressurizable.
- An annular gap between the support cylinder and The pull-off blank is made up of one end face of the support cylinder and one of the pull-off blank limited. The annular gap opens below the necking point of the thermal sprayed material in the area of the deflection chamfer.
- both the support cylinder on the front side and the pull-off disc are on the front side provided with a taper.
- Figure 1 is an arrangement for performing the reproduced method according to the invention.
- An order station 1 comprises one on a machine frame 2 in Recording tips 3 and 4 rotatably mounted base body, one Includes support cylinder 5 and a pull-off blank (see FIG. 2).
- the the is to be applied to the thermal spray coating which gives the shape of the basic body the receiving tips 3 and 4 rotatably supported and can not by one here drive shown in detail can be set in rotation.
- the support cylinder 5 is by means of a cylinder pin 6 in the receiving tip 3, the Cylinder end faces the receiving tip 3.
- Parallel to the axis of the Support cylinder 5, a carriage 9 is arranged which in guides 10 on Machine frame can be moved in the feed direction 13.
- the material to be sprayed on via a feed line 15 applies to the outer surface 8 of the base body.
- the spray layer very ductile and elastic is very similar to solid material. of such Endless sleeves made of coherent material can be - how will be described in more detail below - from the scope of the Detach support cylinder 5.
- FIG. 2 shows in longitudinal section one of a spray layer to be applied thermally the basic body.
- the shaping base body shown in longitudinal section comprises a Support cylinder 5, on the end face 7 of which the cylinder pin 6 is located.
- the Support cylinder 5 has a cavity, the end faces and Shell surfaces 8 limited and penetrated by a guide rod 17.
- To one annular end face 27 of the support cylinder 5 is a corresponding annular end face 28 of a pull-off disc 19.
- the Pull-off disc 19, also penetrated by the aforementioned guide rod 17, which is provided with a profile 18 is with a connection 20 for a Media equipped.
- the connection 20 for the pressure medium comprises one Channel 21, which is in an expansion chamber 22 between the support cylinder 5 and the Pull-off disc 19 opens.
- the expansion chamber 22 is shown in FIG Idle state 22.1 shown.
- the through the mentioned end faces 27, 28 of Support cylinder 5 or pull-off disc 19 formed joint 29 forms an annular gap extending around the cylinder axis into a deflection chamfer 23 at the transition of the support cylinder 5 to the extraction disc 19 opens.
- Deflection chamfer 23.1 is provided as well as a deflection chamfer 23.2 on the condenser side is provided, which in the abutting state of the support cylinder 5 and Pulling disc 19 form a continuous deflection chamfer 23, which leads to the formation of a Constriction 30 in the thermal spray layer 14 leads.
- the surface of the support cylinder 5 is conditioned by means of a blasting process.
- blasting processes are used to roughen subsurface surfaces with the aim of optimal adhesion. This means making the surface as sharp as possible.
- the spray layer 14 in order to ensure that the spray layer 14 can be easily removed, the roughness must be brought about with edges that are as round as possible.
- the surface of the support cylinder 5 is therefore produced using a blasting method using glass balls of a defined size and a blasting pressure between 2.5 and 3.5 bar.
- the average roughness depth R z which is generated by this method, is R z 25 ⁇ m.
- the jacket surface 8 conditioned in this way is provided with a release agent provided what is applied in a film up to 5 ⁇ m thick.
- a release agent such as graphite, silicone or Teflon, acts one mechanical clawing of the striking at high speed Spray particles against the base of the base body and prevents Baking together with the outer surface 8 of the support cylinder 5.
- the applied Release agent supports the detachment of the spray layer 14 after it has cooled the outer surface 8 of the base body.
- FIG. 3 shows a spray layer applied to the shaping base body shown with trained constriction 30.
- the expansion chamber 22 located between the support cylinder 5 and the pull-off disc 19 is in its idle state 22.1, ie not acted upon by a pressure medium.
- a constriction point 30 has formed in the spray layer 14.
- the outer surface of the removal disc 19 was not subjected to any surface conditioning, which is why its roughness is higher than that of the outer surface 8 of the support cylinder 5.
- the expansion chamber 22, which is still in the idle state 22.1, is connected to the latter via the gap 29 defined by the contact area of the end face 27 or 28 of the support cylinder 5 or pull-off probe 19, which opens approximately centrally into the deflection chamfer 23.
- FIG. 4 shows a part which has been partially detached from the expansion chamber coherent thermal spray coating.
- the pull-off disc 19 is acted upon by a pressure medium, which via the Channel 21 acts on the expansion chamber 22.
- a pressure medium which via the Channel 21 acts on the expansion chamber 22.
- By building up Pressure in the expansion chamber 22 results in a surface pressure between the Support cylinder 5 and the pull-off disc 19, whereby the gap 29 between the End faces 27, 28 of the support cylinder 5 and pull-off 19 is widened.
- the Gap 29 passes the pressure medium under the coherent sleeve-shaped Spray layer 14 and applied to the underside 14.2.
- the Deflection phase 23 In order to avoid that a sudden action on the spray layer 14 at beginning formation of the gap 29 by the pressure medium is carried out by the Deflection phase 23 generates an additional length in the form of a constriction 30.
- the area covering the support cylinder 5 is the spray layer 14 detached from the outer surface 8 of the support cylinder 5 while the part of the spray layer 14, which is located on the peel 19, because of the greater friction still adheres to the outer surface of the extraction disc 19.
- Sleeves produced in this way without a seam have a ductile elastic Behavior on and are in the manner described above according to the invention can be produced considerably more cost-effectively than those known from the prior art elaborately deposited on a master cylinder Nickel sleeves.
- the material thicknesses of the tubular bodies to be produced are adjustable between 0.1 and 0.6mm depending on feed and speed of the shaping basic body, in relation to the material discharge on Spray head 11.
- Metal or sprayed metal alloys can be used, for example, for that Apply the necessary transfer layers using offset processes or pressers for Manufacture gravure applications. It is also used as a sleeve Printing form in printing machines possible to use instead of finite Printing plates.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
- Printing Plates And Materials Therefor (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Description
- Figur 1
- den schematisch dargestellten Aufbau einer Anlage zum thermischen Aufbringen einer Spritzschicht auf einen formgebenden Grundkörper,
- Figur 2
- einen Längsschnitt durch den formgebenden Grundkörper, bestehend aus Stützzylinder und Abziehronde,
- Figur 3
- eine auf dem formgebenden Grundkörper aufgebracht Spritzschicht mit ausgebildeter Einschnürstelle, jedoch noch nicht beaufschlagter Expansionskammer und
- Figur 4
- eine durch Beaufschlagung der Expansionskammer teilweise abgelöste thermische Spritzschicht.
- 1
- Auftragsstation
- 2
- Maschinengestell
- 3
- Aufnahmespitze
- 4
- Aufnahmespitze
- 5
- Stützzylinder
- 6
- Zylinderzapfen
- 7
- Zylinderstirnseite
- 8
- Zylindermantelfläche
- 9
- Schlitten
- 10
- Führung
- 11
- Spritzkopf
- 12
- Auftragsrichtung
- 13
- Vorschubrichtung
- 14
- Spritzschicht
- 14.1
- Oberseite Spritzschicht
- 14.2
- Unterseite Spritzschicht
- 15
- Zuleitung
- 16
- Zylinderachse
- 17
- Führungstange
- 18
- Gewinde
- 19
- Abziehronde
- 20
- Preßluftanschluß
- 21
- Kanal
- 22
- Luftkammer
- 22.1
- Ruhezustand
- 22.2
- expandierter Zustand
- 23
- Auslenkfase
- 23.1
- Auslenkfase zylinderseitig
- 23.2
- Auslenkfase rondenseitig
- 24
- Mutter
- 25
- Kontermutter
- 26
- Luftspalt
- 27
- Stirnfläche zylinderseitig
- 28
- Stirnfläche rondenseitig
- 29
- Spalt
- 30
- Einschnürstelle
Claims (16)
- Verfahren zur Herstellung thermisch gespritzter endloser Schichten mit nachfolgenden Verfahrensschritten:Oberflächenkonditionierung eines formgebenden Grundkörpers (5) mit einer Mantelfläche (8), so dass eine Rauheit der Mantelfläche herbeigeführt wird, die sich dadurch auszeichnet, dass die die Rauheit bestimmenden Erhebungen eine runde Kontur aufweisen,Aufbringung eines Trennmittels auf die solcherart konditionierte Mantelfläche (8) des Grundkörpers (5),Aufspritzen eines Materials auf die konditionierte Mantelfläche (8) des Grundkörpers (5) sowie auf eine keiner Oberflächenkonditionierung unterzogenen Mantelfläche einer relativ zum Grundkörper (5) bewegbaren Abziehronde (19), undAblösen der erhaltenden Spritzschicht (14) vom formgebenden Grundkörper (5) durch Einbringen eines Druckmediums in eine zwischen Grundkörper (5) und Abziehronde (19) befindliche Expansionskammer (22).
- Verfahren gemäß Anspruch 1,
dadurch gekennzeichnet, dass das Aufspritzen des Materials gemäß dem Flammspritzverfahren, dem Hochgeschwindigkeits-Flammspritzverfahren, dem Plasmaspritzverfahren oder dem Lichtbogenspritzverfahren erfolgt. - Verfahren nach Anspruch 2,
dadurch gekennzeichnet, dass das aufzuspritzende Material Metalllegierungen, Oxide, Karbide, oder Keramik-Metall-Mischungen enthält. - Verfahren gemäß Anspruch 1,
dadurch gekennzeichnet, dass die Konditionierung der Mantelfläche (8) des Grundkörpers (5) mittels eines Strahlverfahrens erfolgt. - Verfahren gemäß Anspruch 4,
dadurch gekennzeichnet, dass die Rauheit der Mantelfläche (8) des Grundkörpers (5) Rz 25µm beträgt. - Verfahren gemäß Anspruch 4,
dadurch gekennzeichnet, dass das Strahlen der Mantelfläche (8) des Grundkörpers (5) mit Glaskugeln erfolgt. - Verfahren gemäß Anspruch 4,
dadurch gekennzeichnet, dass der Strahldruck des Strahlverfahrens zwischen 2,5 und 3,5 bar beträgt. - Verfahren gemäß Anspruch 1,
dadurch gekennzeichnet, dass die konditionierte Mantelfläche (8) des Grundkörpers (5) mit einer bis zu 5µm dicken Schicht eines Trennmittels versehen wird. - Verfahren gemäß Anspruch 8,
dadurch gekennzeichnet, dass das Trennmittel Graphit, Silikon oder Teflon ist. - Verfahren gemäß Anspruch 1,
dadurch gekennzeichnet, dass die Dicke der Spritzschicht (14) im Bereich zwischen 0,1 und 0,6mm liegt. - Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1,
dadurch gekennzeichnet, dass der Grundkörper (5) ein Stützzylinder ist und zwischen dem Stützzylinder (5) sowie der Abziehronde (19) eine Auslenkfase (23) gebildet ist, die eine Einschnürstelle (30) in der thermisch aufgebrachten Spritzschicht (14) erzeugt. - Vorrichtung gemäß Anspruch 11,
dadurch gekennzeichnet, dass ein ringförmiger Spalt (29) von einer Stirnfläche (27) zylinderseitig sowie einer Stirnfläche (28) rondenseitig begrenzt wird. - Vorrichtung gemäß Anspruch 11,
dadurch gekennzeichnet, dass der ringförmige Spalt (29) in die Auslenkfase (23) unterhalb der Einschnürstelle (30) der thermisch gespritzten Schicht (14) mündet. - Vorrichtung gemäß Anspruch 11,
dadurch gekennzeichnet, dass der Stützzylinder (5) stirnseitig eine Auslenkfase (23.1) aufweist. - Vorrichtung gemäß Anspruch 11,
dadurch gekennzeichnet, dass die Abziehronde (19) stimseitig eine Auslenkfase (23.2) aufweist. - Hülsenförmiger endloser Körper aus thermisch gespritztem Material mit einer Materialdicke zwischen 0,1 und 0,6 mm zum Aufziehen auf Zylinder in Rotationsdruckmaschinen,
dadurch gekennzeichnet, dass dieser gemäß einem Verfahren nach einem der Ansprüche 1 bis 10 gefertigt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19740245A DE19740245A1 (de) | 1997-09-12 | 1997-09-12 | Thermisches Spritzverfahren für Trägerkörper und Vorrichtung zur Durchführung des Verfahrens |
DE19740245 | 1997-09-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0902100A1 EP0902100A1 (de) | 1999-03-17 |
EP0902100B1 true EP0902100B1 (de) | 2003-03-12 |
Family
ID=7842216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98111596A Expired - Lifetime EP0902100B1 (de) | 1997-09-12 | 1998-06-24 | Thermisches Spritzverfahren für Trägerkörper und Vorrichtung zur Durchführung des Verfahrens |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0902100B1 (de) |
JP (1) | JPH11165478A (de) |
DE (2) | DE19740245A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007070939A1 (en) * | 2005-12-23 | 2007-06-28 | Commonwealth Scientific And Industrial Research Organisation | Manufacture of printing cylinders |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005031164A1 (de) * | 2005-07-04 | 2007-01-18 | Koenig & Bauer Ag | Oberfläche für bedruckstoffführende Teile einer Druckmaschine und Verfahren zur Herstellung einer solchen Oberfläche |
DE102009007678B4 (de) * | 2009-02-03 | 2010-12-16 | Sächsische Walzengravur GmbH | Hülse als Tiefdruckform |
GB202218048D0 (en) * | 2022-12-01 | 2023-01-18 | Rolls Royce Plc | Freestanding ceramic tile manufacture |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3112539A (en) * | 1960-11-17 | 1963-12-03 | Gen Motors Corp | Forming articles by arc plasma spraying |
GB1215184A (en) * | 1968-07-02 | 1970-12-09 | Chelton Forming Ltd | Improvements in or relating to the making of hollow articles by metal spraying |
GB1410169A (en) * | 1971-06-17 | 1975-10-15 | Johnson Matthey Co Ltd | Method of making composite layered structures by spraying |
GB1599392A (en) * | 1978-05-31 | 1981-09-30 | Osprey Metals Ltd | Method and apparatus for producing workable spray deposits |
FR2472033A1 (fr) * | 1979-12-21 | 1981-06-26 | Castolin Sa | Fabrication de corps creux, par projection thermique, par exemple par chalumeau ou torche a plasma, d'alliages metalliques et/ou de matieres ceramiques |
DE3046757C2 (de) * | 1980-12-12 | 1985-09-12 | W.C. Heraeus Gmbh, 6450 Hanau | Tiefdruckzylinder |
JPS57198256A (en) * | 1981-05-27 | 1982-12-04 | Isuzu Motors Ltd | Production of thin-walled cylindrical body having smooth inside circumferential surface and abrasion resistance |
DE3447557C2 (de) * | 1984-12-21 | 1987-05-14 | Mannesmann AG, 4000 Düsseldorf | Vorrichtung zur Herstellung eines Hohlzylinders durch Zerstäuben einer Metallschmelze mittels Gaszerstäubung, sowie ein solcher Hohlzylinder |
DE3617833C1 (de) * | 1986-05-27 | 1987-09-03 | Mannesmann Ag | Verfahren zum Herstellen von rotationssymmetrischen Hohlkoerpern |
EP0305142A1 (de) * | 1987-08-28 | 1989-03-01 | Corning Glass Works | Verfahren zur Formgebung eines Formkörpers mit gewünschter Geometrie |
US4903597A (en) * | 1988-10-24 | 1990-02-27 | Lavalley Industries, Inc. | Printing sleeves and methods for mounting and dismounting |
DE9007784U1 (de) * | 1989-03-18 | 1996-01-18 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Druckmaschine |
DE3942702C1 (en) * | 1989-12-20 | 1990-12-20 | Mannesmann Ag, 4000 Duesseldorf, De | Spray compacting of tube blooms or tubes - using torch which atomises liq. metal stream using vertical force to increase rigidity |
CA2038273A1 (en) * | 1990-06-29 | 1991-12-30 | Paul A. Siemers | Tube fabrication with reusable mandrel |
DE4208023C2 (de) * | 1991-06-10 | 1994-04-07 | Banning Gmbh J | Verfahren und Vorrichtung zur Herstellung rotationssymmetrischer Teile aus Metall |
DE4130264A1 (de) * | 1991-09-12 | 1993-03-18 | Roland Man Druckmasch | Formzylinder in einer offsetdruckmaschine |
DE4315813A1 (de) * | 1993-05-12 | 1994-11-17 | Hoechst Ag | Verfahren zur Herstellung von Druckwalzen aus einem metallischen Kernzylinder und einer Kupfer- oder Kupferlegierungsauflage |
-
1997
- 1997-09-12 DE DE19740245A patent/DE19740245A1/de not_active Withdrawn
-
1998
- 1998-06-24 DE DE59807441T patent/DE59807441D1/de not_active Expired - Fee Related
- 1998-06-24 EP EP98111596A patent/EP0902100B1/de not_active Expired - Lifetime
- 1998-09-11 JP JP10258424A patent/JPH11165478A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007070939A1 (en) * | 2005-12-23 | 2007-06-28 | Commonwealth Scientific And Industrial Research Organisation | Manufacture of printing cylinders |
Also Published As
Publication number | Publication date |
---|---|
DE59807441D1 (de) | 2003-04-17 |
JPH11165478A (ja) | 1999-06-22 |
EP0902100A1 (de) | 1999-03-17 |
DE19740245A1 (de) | 1999-03-18 |
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