Cylinders and rollers for printing machines
AssigneeAdamovske strojirny, narodni podnik
InventorsFrantisek Pospisil, Vaclav Sedlak
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Abstract
Cylinder and rollers for printing machines such as offset cylinders, impression cylinders, form cylinders and dampening rollers. The cylinder or roller has a core or cylinder proper, and a layer thereon which is inseparable from the cylinder proper. This layer has a thickness of 0.05 to 0.6 mm. This layer may consist of a metal alloy selected from the group of nickel-chromium and nickel-chromium-boron-silicon.
Claims3
An improved cylinder or roller for printing machines, said cylinder or roller having a cylindrical metal core, and an outermost inseparable cylindrical surface layer on the core of said cylinder or roller, said layer consisting of a metal alloy selected from the following group of alloys:
- nickel-chromium having about 80% by weight of nickel and about 20% by weight of chromium, nickel-chromium-boron-silicon having about 4-20% by weight of chromium, about 1-6% by weight of boron, about 1-6% by weight of silicon, and about 0-10% by weight of the following metals:
- molybdenum, tungsten, copper and about 0.5 to 8% by weight of iron, the remainder being nickel.
Dependencies are inferred from the claim text.