Length detection method of uncooled section of head of hot rolled strip steel

Abstract

The invention discloses a length detection method of an uncooled section of a head of a hot rolled strip steel. The detection method is characterized by comprising the following steps of: (1) arranging image acquisition equipment between a laminar flow cooler and a coiler of a hot rolling production line; (2) connecting the image acquisition equipment with an image processing and recognition system through a network; (3) connecting the image processing and recognition system with a production line process control system; (4) photographing and acquiring an image of the head of the strip steel by the image acquisition equipment when the head of the strip steel enters a working region of the image acquisition equipment; (5) transmitting the acquired image of the head of the strip steel to the image processing and recognition system; and (6) processing and analyzing, by the image processing and recognition system, the image of the head to obtain a length value of the uncooled section of the head of the strip steel. According to the detection method, the problem of length detection of the uncooled section of the head of the strip steel in a hot rolled strip steel production process is solved, and the yield of thick specification production of hot rolling plants is improved.

Description

technical field [0001] The invention belongs to the field of metallurgical hot rolling, and in particular relates to a method for detecting the length of an uncooled section at the head of a hot-rolled strip steel. Background technique [0002] When the hot rolling production line produces thick-gauge steel strips, in order to realize the smooth bending and coiling of the strip head on the coiler reel at the first turn, and to prevent coiling and stacking steel accidents, the steel strips are used according to the strength of the strips to be coiled. The steel head is about 1-5 meters without cooling (or less cooling), and some manufacturers call it red head and dry head. But the problem is that the mechanical properties of the uncooled (less cold) section of the head cannot meet the standard requirements, and it needs to be cut off before leaving the factory or by the user, which affects the yield of 1% to 3%. The thicker the thickness, the greater the loss. Contents of t...

AI Technical Summary

Problems solved by technology

But the problem is that the mechanical properties of the uncooled (less cold) section of the head cannot meet the standard requirements, and it needs to be cut off before leaving the factory or by the user, which will affect the yield of 1% to 3%. The thicker the thickness, the greater the loss