METHOD FOR MANUFACTURING DRUM FOR RETADER

摘要

PURPOSE: A method for manufacturing a drum for a retarder is provided to reduce manufacturing cost, by coating functional material only on an inner wall of the drum. CONSTITUTION: A hub is integrated through forging. A drum structure is formed through the forging (101). Functional material is plated on the inner wall of the drum structure. Selective electric plating method is used in the plating. The drum structure is processed (102). [Reference numerals] (101) Form a drum structure through forging; (102) Process the drum structure; (103) Install a rotor on the drum structure; (104) Prepare for plating; (105) Plate a nickel layer on the inner wall of a drum; (106) Plate a copper layer on the nickel layer; (107) Plate a nickel layer on the copper plated layer; (AA) Start; (BB) End