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1. WO1989000507 - PROCESS FOR MANUFACTURING ABRASION-RESISTANT COATINGS, IN PARTICULAR ON SPIRAL ROLLERS

Publication Number WO/1989/000507
Publication Date 26.01.1989
International Application No. PCT/EP1987/000787
International Filing Date 16.12.1987
IPC
B41N 7/06 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
NPRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE OR CONSERVING THEM
7Shells for rollers of printing machines
06for inking rollers
CPC
B41N 2207/02
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
NPRINTING PLATES OR FOILS
2207Location or type of the layers in shells for rollers of printing machines
02Top layers
B41N 2207/10
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
NPRINTING PLATES OR FOILS
2207Location or type of the layers in shells for rollers of printing machines
10characterised by inorganic compounds, e.g. pigments
B41N 7/06
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
NPRINTING PLATES OR FOILS
7Shells for rollers of printing machines
06for inking rollers
Applicants
  • KURT ZECHER GMBH [DE]/[DE] (AllExceptUS)
  • ZECHER, Kurt [DE]/[DE]
  • SCHAUER, Wolfgang [DE]/[DE] (UsOnly)
  • EISNER, Günter [DE]/[DE] (UsOnly)
Inventors
  • ZECHER, Kurt
  • SCHAUER, Wolfgang
  • EISNER, Günter
Agents
  • HANEWINKEL, Lorenz
Priority Data
G 87 09 645.5 U14.07.1987DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(EN) PROCESS FOR MANUFACTURING ABRASION-RESISTANT COATINGS, IN PARTICULAR ON SPIRAL ROLLERS
(FR) PROCEDE DE PRODUCTION DE REVETEMENTS RESISTANTS A L'ABRASION, NOTAMMENT DE ROULEAUX CANNELES EN SPIRALES
Abstract
(EN) A protective coating (10) of a tough metal is applied by galvanic deposition of grains of (H) of mechanically resistant material. This protective coating is then coated galvanically with a layer (11) of a harder metal having a thickness (D1) which corresponds approximately to the particle size of the grains of mechanically resistant material. A basic nickel bath containing silicon carbide grains (H) in suspension and an acid chromium bath are used. The spiral roller (1) rotates in the nickel bath at a surface speed such that a grid distance (R) between the cavities (V) in the surface of the roller is traversed in at least the time required for the ions in the nickel bath to travel a distance equal to the particle size.
(FR) On applique une couche de protection (10) en un métal tenace par déposition galvanique de granulés (H) d'un matériau dur, puis on revêtit galvaniquement cette couche de protection avec une couche (11) en un matériau plus dur dont l'épaisseur (D1) correspond à environ la grandeur des granulés de matériau dur. On utilise un bain de nickel basique avec des granulés (H) en suspension de carbure de silicium et un bain de chrome acide. Le rouleau cannelé en spirales (1) est mis en rotation dans le bain de nickel à une vitesse superficielle telle qu'un écart-modèle (R) entre des cavités (V) de la surface du rouleau cannelé en spirales est parcouru au moins pendant le temps nécessaire pour que les ions du bain de nickel se déplacent d'une grandeur des granulés.
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