Remote temperature measurement method of material

Abstract

The invention discloses a remote temperature measurement method of materials, and belongs to the technical field of material processing. The method is based on a law of conservation of energy: heat Q1emitted by a material is equal to heat Q2 of convective heat transfer between a surrounding environment medium and a surface of the material. A surface heat transfer coefficient h of the material iscalculated by measuring temperature change of the material on a certain position, thereby calculating the temperature of the material on another position. The method solves a problem that the materialcannot be measured on certain positions during a material processing process, and achieves an objective 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...

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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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