Method for manufacturing coating rod

摘要

There is provided a method for manufacturing a coating rod capable of eliminating scratches and uneven coating on a web. The coating rod is manufactured by preparing a rod material 20; disposing a pair of form rolling dies 120 and 130 having a plurality of helical convex threads, so that the closure angle of a main axis of each of the form rolling dies 120 and 130 in the horizontal direction thereof is substantially 0.25° or larger but not larger than 0.35° with respect to an axial direction of the rod material 20; and feeding the rod material 20 along the axial direction thereof and rotating the pair of form rolling dies 120 and 130 around the main axes thereof, while clamping the rod material 20 with the pair of form rolling dies 120 and 130.