Measurement device and method of billet heating temperature uniformity

Abstract

The invention discloses a measurement device and method of billet heating temperature uniformity. The measurement device comprises a lens, a grating, a detector, an imaging device and a computer thatare connected in sequence, and further comprises a temperature recorder and a thermal couple, wherein the temperature recorder is installed on the billet surface before the billet is put into a furnace, the thermal couple is arranged at the bottom of a measurement hole in the billet before the billet is put into the furnace, the upper part of the measurement hole is filled with a fire-resistive material, the thermal couple and the temperature recorder are connected, in the heating process of the billet, inner temperature of the billet is measured through the thermal couple, the temperature recorder stores temperature data measured by the thermal couple according to a preset time step, after the billet is taken out of the furnace, an upper surface temperature image and a lower surface temperature image of the billet are acquired through the lens, the grating, the detector and the imaging device, and the computer analyzes and acquires the billet heating temperature uniformity according to the billet inner temperature data, the upper surface temperature image and the lower surface temperature image. Through adoption of the method and device, the technical problem in the prior art thatevaluation accuracy of billet heating temperature uniformity is low is solved.

Description

technical field [0001] The invention relates to the technical field of rolling steel heating in the metallurgical industry, in particular to a measuring device and method for the uniformity of steel billet heating temperature. Background technique [0002] In recent years, with the continuous upgrading of product quality in the iron and steel industry, the requirements for steel surface quality have become higher and higher, and the requirements for steel rolling have become more and more stringent. Among them, the control of billet heating temperature is particularly important. The steel billet is heated from low temperature to high temperature in the heating furnace, and the heat is transferred from the outside to the inside. Due to the large change in the comprehensive heat transfer coefficient in the furnace, if the heating is uneven, the temperature of the upper and lower surfaces of the billet, as well as inside and outside, will be uneven, resulting in difficulty in ro...

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Problems solved by technology

[0004] The embodiment of the present invention provides a measuring device and method for the uniformity of the heating temperature of the steel slab, which is used to solve the technical problem of poor evaluation accuracy of the heating temperature uniformity of the steel slab in the prior art, and improve the accuracy of the uniformity evaluation

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