PRODUCTION MANAGEMENT METHOD FOR STEEL TUBES AND PIPES

摘要

There is provided a production management method for steel tubes and pipes produced through a plurality of production processes, including:
a step of machining a matrix code, which encodes tube or pipe information, in a tube or pipe end by a laser beam so that the central angle of width of the matrix code in a circumferential direction of the tube or pipe is 30° or smaller; anda step of reading the matrix code automatically by using a linear sensor type camera, whereinthrough reading the matrix code, the production history is managed by identifying and recording the production information and quality information corresponding to each steel tube or pipe for each tube or pipe number, andthe tube or pipe information is retrievable as necessary.

主权项

1. A production management method for steel tubes and pipes produced through a plurality of production processes, including:
a step of machining a matrix code, which encodes tube or pipe information, in a tube or pipe end by a laser beam so that the central angle of width of the matrix code in a circumferential direction of the tube or pipe is 300 or smaller; and a step of reading the matrix code automatically by using a linear sensor type camera, wherein through reading the matrix code, the production history is managed by identifying and recording the production information and quality information corresponding to each steel tube or pipe for each tube or pipe number, and the tube or pipe information is retrievable as necessary.