Patent ID: 9733021
Date: 2017-08-15
CPC Classifications: B29D,C03B,F27D,Y10T

Claim:
1. A method of making a pulling roll, comprising the steps: a. conducting at least one of a thermogravimetric analysis (TGA) and a differential thermal analysis (DTA) of millboard disks from ambient temperature to an upper thermal profile temperature that is higher than a pulling roll operating temperature, wherein the pulling roll operating temperature is 1000° C. or greater; b. selecting a firing temperature and time for the disks based on the at least one of a TGA and a DTA such that the disks do not undergo a weight loss from thermal perturbations of more than 5% upon exposure to the pulling roll operating temperature; c. firing a plurality of the millboard disks at the firing temperature and time; and d. assembling the plurality of millboard disks on a pulling roll shaft to form a pulling roll, the assembling conducted after the firing step.