STEEL TUBE PRODUCTION CONTROL METHOD

摘要

Provided is a method for production control of steel tubes which are produced by a plurality of manufacturing steps, comprising: a step of machining into a tube end part a matrix code into which tube information is encoded with a laser beam such that the width thereof has an angle of arc of 30° or less; and a step of automatically reading the matrix code with a linear sensor camera. A manufacturing history is managed by manufacturing information and quality information corresponding to each respective steel tube being identified and recorded for each tube number by reading the matrix code, and it is possible to extract tube information as necessary.