EP0193710B1 - Feuille en aluminium pour l'impression offset et son procédé de fabrication - Google Patents

Feuille en aluminium pour l'impression offset et son procédé de fabrication Download PDF

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Publication number
EP0193710B1
EP0193710B1 EP86100479A EP86100479A EP0193710B1 EP 0193710 B1 EP0193710 B1 EP 0193710B1 EP 86100479 A EP86100479 A EP 86100479A EP 86100479 A EP86100479 A EP 86100479A EP 0193710 B1 EP0193710 B1 EP 0193710B1
Authority
EP
European Patent Office
Prior art keywords
offset printing
strip
thickness
aluminium strip
hot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86100479A
Other languages
German (de)
English (en)
Other versions
EP0193710A3 (en
EP0193710A2 (fr
Inventor
Wolfgang Von Asten
Karl Heinz Dr. Dörner
Hartmut Scheel
Volker Würstle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to AT86100479T priority Critical patent/ATE65214T1/de
Publication of EP0193710A2 publication Critical patent/EP0193710A2/fr
Publication of EP0193710A3 publication Critical patent/EP0193710A3/de
Application granted granted Critical
Publication of EP0193710B1 publication Critical patent/EP0193710B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/04—Printing plates or foils; Materials therefor metallic
    • B41N1/08—Printing plates or foils; Materials therefor metallic for lithographic printing
    • B41N1/083—Printing plates or foils; Materials therefor metallic for lithographic printing made of aluminium or aluminium alloys or having such surface layers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon

Definitions

  • the invention relates to an aluminum offset strip with a predominantly globulitically recrystallized and subsequently cold-deformed structure.
  • Rolled strips and sheets made of aluminum or aluminum alloys are used in the thickness range from 0.1 to 0.5 mm to produce offset printing plates.
  • the aluminum strip is provided with a light-sensitive photo layer, which is transformed by the action of light in such a way that it is insoluble for the developers used.
  • a light-sensitive photo layer which is transformed by the action of light in such a way that it is insoluble for the developers used.
  • an uncoated aluminum surface is present in the unexposed areas, which has hydrophilic properties.
  • the fully developed printing plate is clamped on a plate cylinder for the printing process.
  • An important requirement for offset printing plates is to have sufficient strength and resistance to cracking under this mechanical stress.
  • the rolled surface must be roughened mechanically or electrochemically or chemically to better anchor the photosensitive layer.
  • this roughening should be as homogeneous and fine-celled as possible.
  • the object of the present invention is to further improve the strength and elongation values, in particular the thermal stability and rigidity, in the case of an offset tape of the type mentioned at the outset, the suitability of the surface for the subsequent electrochemical roughening being retained and a simplified method for producing such offset tapes to provide.
  • the invention therefore aims at an Al offset tape with a predominantly globulitically recrystallized and then cold-deformed structure with a clearly fine grain structure and a strongly consolidated core area at the same time.
  • the structure chosen means that the requirements for an offset tape can be met in an optimal manner without plating. Due to the significantly less steered rolling structure of the surface layer, mechanical and electrochemical roughening of the printing plate is possible, which has a homogeneous and fine-grained structure on the surface to be coated. The streaked rolled structure in the core ensures the necessary strength even after a possible thermal aftertreatment.
  • the hot rolling process is controlled according to the invention in such a way that recrystallization cannot take place over the entire cross section of the offset strip, but only in the edge zones. This results in a non-recrystallized core zone with a streaked roll structure, which is important for the increased mechanical properties. Numerous tests have shown that a surface area of 10 to 30% - preferably 15% - with a globular structure is sufficient for the electrochemical roughening.
  • the globular grain structure of the hot strip is lengthened by the subsequent cold rolling, but has a significantly lower stretching of the edge zone compared to the core.
  • the grains elongated in the rolling direction have an elongation of s less than 8 on the surface, the core zone elongation values of s greater than 16.
  • the evaluation method of R. Dederichs and H. Kostron two new rapid methods for grain cross-section determination, 1950, Verlag Chemie GMBH Weinheim / Bergstr, page 30-31 was used.
  • the product according to the invention produced in this way shows an elongation S ⁇ 8 in the grain structure on the surface and an elongation S ⁇ 16 in the core zone.
  • the comparison test shows that the method according to the invention leads to an offset tape which has the surface suitable for electrochemical roughening with very favorable mechanical properties.
  • the mechanical properties can be improved to such an extent that the decrease in strength that would otherwise be expected after a thermal treatment of more than 200 ° C. is only delayed and occurs to a much lesser extent.
  • the yield point ratio is a measure of the stiffness of the belt. The stiffness must be sufficiently high for good handling, in particular of thin strips.
  • the offset tape produced according to the invention is therefore superior to the material hitherto used for these purposes, which does not have sufficient rigidity after the stoving temperature frequently used for offset purposes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Metal Rolling (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Insulated Metal Substrates For Printed Circuits (AREA)
  • ing And Chemical Polishing (AREA)
  • Powder Metallurgy (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Clamps And Clips (AREA)
  • Laminated Bodies (AREA)

Claims (7)

  1. Bande d'aluminium pour plaques offset à structure recristallisée sous forme équiaxe et soumise ensuite à une déformation à froid, caractérisée par un coeur possédant une texture laminée lamellaire à structure de grain allongée dans la direction du laminage et, de part et d'autre du coeur, une région superficielle formée parallèlement à la direction du laminage à texture essentiellement recristallisée sous forme équiaxe présentant un étirage s < 8.
  2. Bande d'aluminium pour plaques offset selon la revendication 1, caractérisée en ce que l'étirage s dans le coeur est s ≧ 16.
  3. Bande d'aluminium pour plaques offset selon la revendication 1, caractérisée en ce qu'elle contient du magnésium dans une proportion de 0,03 à 0,4 %, et du béryllium ou du cuivre dans une proportion de 0,05 à 0,25 %.
  4. Bande d'aluminium pour plaques offset selon une des revendications précédentes, caractérisée en ce que la région superficielle occupe au total 10 à 30 % de l'ensemble de la section.
  5. Procédé de fabrication d'une bande d'aluminium pour plaques offset selon une des revendications précédentes, caractérisé en ce qu'on lamine à chaud une barre de 400 à 600 mm d'épaisseur, à une température initiale dans l'intervalle de 550 à 480°C, pour la ramener à une épaisseur finale de bande laminée à chaud de moins de 3,5 mm, et de telle manière que la température finale du laminage à chaud soit supérieure à 320°C et en ce que la bande d'aluminium, refroidie ensuite à la température ambiante, est laminée à froid à l'épaisseur finale sans recuit intermédiaire, avec un taux de réduction de 80 à 90 %, rapporté à l'épaisseur finale de la bande laminée à chaud.
  6. Procédé selon la revendication 5, caractérisé en ce que l'épaisseur finale de la bande laminée à chaud est de 2,5 à 3,5 mm.
  7. Procédé selon une des revendications 5 et 6, caractérisé en ce que, dans le cas d'une bande pour plaques offset contenant 0,03 à 0,4 % Mg et 0,05 à 0,25 % Cu ou 0,03 à 0,4 % Be, on exécute un traitement thermique consécutif à une température de 200 à 240°C pendant 10 à 15 minutes.
EP86100479A 1985-03-02 1986-01-16 Feuille en aluminium pour l'impression offset et son procédé de fabrication Expired - Lifetime EP0193710B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86100479T ATE65214T1 (de) 1985-03-02 1986-01-16 Aluminiumoffsetband und verfahren zu seiner herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853507402 DE3507402A1 (de) 1985-03-02 1985-03-02 Aluminiumoffsetband und verfahren zu seiner herstellung
DE3507402 1985-03-02

Publications (3)

Publication Number Publication Date
EP0193710A2 EP0193710A2 (fr) 1986-09-10
EP0193710A3 EP0193710A3 (en) 1988-08-03
EP0193710B1 true EP0193710B1 (fr) 1991-07-17

Family

ID=6264006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100479A Expired - Lifetime EP0193710B1 (fr) 1985-03-02 1986-01-16 Feuille en aluminium pour l'impression offset et son procédé de fabrication

Country Status (6)

Country Link
US (1) US4715903A (fr)
EP (1) EP0193710B1 (fr)
JP (1) JPS61201747A (fr)
AT (1) ATE65214T1 (fr)
DE (1) DE3507402A1 (fr)
ES (1) ES8705928A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714059C3 (de) * 1987-04-28 1995-12-07 Vaw Ver Aluminium Werke Ag Material in Band- oder Plattenform und Verfahren zu seiner Herstellung sowie dessen Verwendung als Träger für Flachdruckformen
JPS6465242A (en) * 1987-09-04 1989-03-10 Nippon Light Metal Co Scroll made of aluminum alloy
EP0603476B1 (fr) * 1992-11-20 1998-08-12 Fuji Photo Film Co., Ltd. Support de plaque pour l'impression planographique et procédé de fabrication
US5562784A (en) * 1993-12-13 1996-10-08 Nippon Light Metal Company, Ltd. Aluminum alloy substrate for electrolytically grainable lithographic printing plate and process for producing same
US5664023A (en) * 1994-11-14 1997-09-02 Jbl Incorporated Low TCR wire in high power audio coils
JPH09207467A (ja) 1996-02-02 1997-08-12 Fuji Photo Film Co Ltd 平版印刷版支持体の製造方法
EP0821074A1 (fr) * 1996-07-25 1998-01-28 Alusuisse Technology &amp; Management AG Procédé pour la production d'une bande en alliage d'aluminium pour plaques d'impression lithographique
DE69723061T3 (de) † 1997-06-26 2010-06-10 Fujifilm Corp. Träger aus einer Aluminiumlegierung für eine lithographische Druckplatte
KR100226283B1 (ko) * 1997-07-11 1999-10-15 차희선 불순물 철이 함유된 알루미늄합금주물
JP3693485B2 (ja) 1998-03-09 2005-09-07 日本軽金属株式会社 平版印刷版用アルミニウム合金素板の製造方法
DE19902527B4 (de) * 1999-01-22 2009-06-04 Hydro Aluminium Deutschland Gmbh Druckplattenträger und Verfahren zur Herstellung eines Druckplattenträgers oder einer Offsetdruckplatte
DE19956692B4 (de) 1999-07-02 2019-04-04 Hydro Aluminium Deutschland Gmbh Lithoband
JP2002307849A (ja) 2001-02-09 2002-10-23 Fuji Photo Film Co Ltd 平版印刷版原版
EP1712368B1 (fr) 2005-04-13 2008-05-14 FUJIFILM Corporation Procédé de fabrication d'un substrat pour plaque lithographique
JP4913816B2 (ja) 2005-10-19 2012-04-11 ハイドロ アルミニウム ドイチュラント ゲー エム ベー ハー 石版印刷版支持体用のアルミニウムストリップ
ES2407655T5 (es) 2007-11-30 2023-02-23 Speira Gmbh Banda de aluminio para soportes para planchas de impresión litográfica y su producción
US8968530B2 (en) 2008-09-30 2015-03-03 Fujifilm Corporation Electrolytic treatment method and electrolytic treatment device
ES2587024T3 (es) 2008-11-21 2016-10-20 Hydro Aluminium Rolled Products Gmbh Banda de aluminio para soportes de plancha de impresión litográfica con alta resistencia a la flexión alternante
US20120091495A1 (en) 2009-06-26 2012-04-19 Fujifilm Corporation Light reflecting substrate and process for manufacture thereof
US20120256224A1 (en) 2009-12-25 2012-10-11 Fujifilm Corporation Insulated substrate, process for production of insulated substrate, process for formation of wiring line, wiring substrate, and light-emitting element
US8100622B2 (en) * 2010-02-02 2012-01-24 Rainbow Conversion Technologies, Llc Articulated lift arm

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH240642A (de) * 1944-07-31 1946-01-15 Aluminium Ind Ag Aluminium-Legierung.
US2821014A (en) * 1951-05-31 1958-01-28 Aluminum Co Of America Composite aluminous metal article
DE1929146A1 (de) * 1969-06-09 1972-02-24 Vaw Leichtmetall Gmbh Verwendung einer Aluminiumlegierung
NO120955B (fr) * 1968-09-27 1970-12-28 Ver Leichtmetallwerke Gmbh
FR2113782B1 (fr) * 1970-11-16 1973-06-08 Pechiney
US3944439A (en) * 1974-03-18 1976-03-16 Swiss Aluminium Limited Method of preparing high fatigue strength aluminum alloy
JPS5528874A (en) * 1978-08-23 1980-02-29 Kubota Ltd Preparation of inorganic extruding moldings with pattern
DE3378063D1 (en) * 1982-06-01 1988-10-27 Fuji Photo Film Co Ltd Aluminium alloy, a support of lithographic printing plate and a lithographic printing plate using the same
JPS59133355A (ja) * 1983-01-20 1984-07-31 Kobe Steel Ltd 印刷用アルミニウム合金の製造方法
JPS605861A (ja) * 1983-06-22 1985-01-12 Furukawa Alum Co Ltd 平版印刷版用支持体の製造方法

Also Published As

Publication number Publication date
ATE65214T1 (de) 1991-08-15
ES550328A0 (es) 1987-05-16
DE3507402C2 (fr) 1988-01-28
EP0193710A3 (en) 1988-08-03
JPS61201747A (ja) 1986-09-06
JPH05462B2 (fr) 1993-01-06
ES8705928A1 (es) 1987-05-16
US4715903A (en) 1987-12-29
DE3507402A1 (de) 1986-09-04
EP0193710A2 (fr) 1986-09-10

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