US 7,506,767 B2
Method for manufacturing screen cylinder and screen cylinder
Tauno Laakso, Valkeakoski (Finland)
Assigned to Metso Paper, Inc., Helsinki (Finland)
Appl. No. 10/569,011
PCT Filed Aug. 18, 2004, PCT No. PCT/FI2004/000488
§ 371(c)(1), (2), (4) Date Feb. 21, 2006,
PCT Pub. No. WO2005/019529, PCT Pub. Date Mar. 03, 2005.
Claims priority of application No. 20031185 (FI), filed on Aug. 22, 2003.
Prior Publication US 2007/0023331 A1, Feb. 01, 2007
Int. Cl. B07B 1/49 (2006.01)
U.S. Cl. 209—395  [209/393; 209/400; 209/410; 209/411] 21 Claims
OG exemplary drawing
 
1. A method for manufacturing a screen cylinder, comprising:
fastening a plurality of longitudinally-extending screen wires at lateral intervals about a plurality of ring-shaped support rods, each support rod defining an axis extending therethrough and the support rods being arranged in spaced-apart relation such that the axes thereof are coaxially disposed to define a screen cylinder axis, and such that the screen wires cooperate with the support rods to form a cylindrical screen surface of the screen cylinder, the screen surface having opposed ends, and at least one of the support rods being disposed about one of the ends of the screen surface; and
mounting an end ring to the at least one of the support rods closest to one of the ends of the screen surface, in a shrink fit therebetween, whereby a force resulting from the shrink fit is directed substantially perpendicularly to the screen cylinder axis, and acting between the end ring and the at least one of the support rods, secures the screen cylinder surface in substantially immobile relation relative to the end ring via the at least one of the support rods.