Manufacturing method of roller of film or tape handling machine

摘要

A plurality of concave portions and convex portions are formed on a circumferential face of a base metal cylinder or roller (1). Summits (3a) of the convex positions (3) are ground and removed or erased. The base metal cylinder (1) or roller is plated and coated (4) to harden the circumferential face. The concave portions (2) and the convex portions (3) leave their shapes after the plating and coating process. Additionally, the plated and coated ends (3a) of the convex portions (3) are ground in order to form flat faces or curved faces of ends, on which flat faces or curved faces a film web or tape web slides. The metal roller (6) is used in a machine (9) handling film or tape (7) or any web material.