Monitoring apparatus and monitoring method of seamless pipe or tube production conditions and manufacturing facilities of seamless pipe or tube

Abstract

It is an object of the present invention to provide a monitoring apparatus and the like of seamless pipe or tube production conditions which enable to quickly correct production conditions during operating the manufacturing facilities of a seamless pipe or tube. The monitoring apparatus 20 of production conditions according to the present invention comprises an ultrasonic thickness meter 4 which is installed on the exit side of a piercing-rolling mill 10 piercing and rolling a billet B to produce a pipe S and measures a thickness of the pipe S produced by the piercing-rolling mill 10, a thermometer 5 which is installed on the exit side of the piercing-rolling mill 10 and measures a surface temperature of the pipe S produced by the piercing-rolling mill 10, and a computing and displaying device 6 which displays a thickness distribution in a circumferential direction of the pipe S and a surface temperature distribution in a circumferential direction of the pipe S based on the thickness of the pipe S measured by the ultrasonic thickness meter 4 and the surface temperature of the pipe S measured by the thermometer 5.

Dependencies are inferred from the claim text.