A remote temperature measurement method for materials

Abstract

The invention discloses a remote temperature measurement method for materials, which belongs to the technical field of material processing. The present invention is based on the law of energy conservation: the heat Q emitted by the material 1 Equal to the heat Q of convective heat transfer between the surrounding environment medium and the surface of the material 2 , by measuring the temperature change of the material at one place, the surface heat transfer coefficient h of the material is calculated, so as to deduce the temperature of the material at another place, which solves the problem that the temperature of the material cannot be measured at some positions during the material processing process , to achieve the purpose of remote temperature measurement.

Description

technical field [0001] The invention belongs to the technical field of material processing, and in particular relates to a remote temperature measurement method for materials. Background technique [0002] In the field of material processing, temperature measurement is an extremely important task, but due to the limitations of working environment and other conditions, some places cannot directly measure temperature. For example, during the extrusion process, the profile extrusion die moment cannot be directly measured due to the influence of the front beam of the extrusion machine, but the instantaneous temperature of the profile extrusion die is extremely important, which directly affects the microstructure, surface quality, and shape and size of the product. , mechanical properties, etc. If the temperature is too high, it will lead to surface cracking, coarse-grained structure and even over-burning. If the temperature is too low, it will lead to unqualified mechanical prop...

AI Technical Summary

Problems solved by technology

[0002] In the field of material processing, temperature measurement is an extremely important task, but due to the limitations of the working environment and other conditions, some places cannot directly measure temperature

For example, during the extrusion process, the profile extrusion die moment cannot be directly measured due to the influence of the front beam of the extrusion machine, but the instantaneous temperature of the profile extrusion die is extremely important, which directly affects the microstructure, surface quality, and shape and size of the product. , mechanical properties, etc. If the temperature is too high, it will lead to surface cracking, coarse-grained structure and even over-burning. If the temperature is too low, it will lead to unqualified mechanical properties, insufficient extrusion force or mold damage. Inhomogeneous structure, mechanical properties, shape and size, etc.

[0003] At present, only the temperature of the profile at the exit of the front beam can be measured to roughly judge the temperature of the profile at the exit of the die. The temperature cannot be accurately measured yet, and it is urgent to develop a remote temperature measurement method for remote temperature measurement

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