Patent ID: 7290420
Filing Date: 2007-11-06
Classification: B21B,F16G,Y10T

Abstract:
1. A rolling method in which rolling processing of a ring in an endless metallic belt is performed, the endless metallic belt being formed by annularly arranging multiple elements in a plate thickness direction, and passing the ring through each of saddle portions of the elements, comprising: a step of winding a ring on one of a pair of rollers which hold the ring with the ring being sandwiched therebetween, and which roll the ring, and a roller which applies tension to the ring; a measuring step of measuring a temperature of the ring before rolling; a rolling load control step of controlling a rolling load which the pair of rollers apply to the ring; a tension control step of controlling a tension which the roller applies to the ring; a storing step of storing, in advance, a relation between the temperature of the ring, the rolling load and the tension; and a calculating step of calculating the rolling load and the tension based on the measured temperature of the ring and the relation, to control the rolling load control step and the tension control step.