Continuous annealing furnace uniform temperature zone on-line determination method

Abstract

The invention discloses a continuous annealing furnace uniform temperature zone on-line determination method. The method includes preparing a temperature calibration material and a temperature sensing assembly; temperature in a furnace rises to a calibrated temperature, then the material is fed into the furnace at constant speed to acquire temperature; when the acquired temperature is in a process allowable range, walking is stopped, if the acquired temperature is still in the process allowable range in a period of time, it is indicated that the position is an initial position of a uniform temperature zone, and if the acquired temperature is not in the process allowable range, the previous step is continued; the material continues to walk for a period of time at constant speed, then stops walking and whether the temperature is in the process allocable range is determined, and circular determination is performed based on such a cycle; till the temperature is beyond the process allocable range, it is indicated that the position is an end position of the uniform temperature zone, and the length of the uniform temperature zone is obtained by multiplying the walking speed by effective walking time. The continuous annealing furnace uniform temperature zone on-line determination method provided by the invention performs calibration of an effective uniform temperature zone aiming at different processes and different materials, is suitable for temperature calibration in an on-line state, and production can be performed after temperature calibration is finished.

Description

technical field [0001] The invention belongs to the technical field of temperature measurement, and in particular relates to an online measurement method for a uniform temperature zone of a continuous annealing furnace. Background technique [0002] Continuous annealing furnace is a kind of heat treatment industrial furnace through which materials pass through continuously. Usually, most industrial furnaces are used to produce strips. Such industrial furnaces generally have higher requirements for the atmosphere pressure and temperature control in the furnace. In addition, the continuous annealing furnace also has high control requirements for the length measurement of the effective uniform temperature zone in the furnace. Therefore, it is necessary to measure the effective uniform temperature zone of the continuous annealing furnace to determine the length of the effective uniform temperature zone. One type of continuous annealing furnace body has a standard temperature hol...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an online measurement method for the uniform temperature zone of a continuous annealing furnace, which solves the problem that the length of the uniform temperature zone of the existing continuous annealing furnace is inaccurate or cannot be measured

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