Experimental heating apparatus for solid sample

Abstract

The invention discloses an experimental heating apparatus for a solid sample. The experimental heating apparatus comprises a controller, a sample injecting groove, a heat-conducting tube, a heater, a cooler, a sample injecting groove driving mechanism and a micro powder feeder for injecting the sample. The heater comprises a plurality of circular electric heating assemblies which are sleeved on the heat-conducting tube. The cooler comprises a plurality of circular cooling assemblies which are sleeved on the heat-conducting tube. The electric heating assemblies and the cooling assemblies are individually controlled by the controller. With uniformizing the temperature field through the heat-conducting tube, a temperature distribution with gradually increased temperature is obtained, and temperature gradient is adjustable. The sample is placed in a crucible positioned on the front end of the sample injecting groove, and enters different temperature regions through moving the sample injecting groove forward and backward, such that stable heating of the solid material, controllable heating rate are realized, rapid and exact heating, cooling and holding of the solid sample are realized.With the present invention, a rapid and convenient heating way is provided base on the traditional heating way, and a reliable apparatus with stable heating rate is provided for the continuous sampleinjection experiments.

Description

technical field [0001] The invention relates to an experimental heating device, in particular to a solid sample experimental heating device which needs to control temperature and heating rate in solid material research. [0002] Background technique [0003] In the research of solid materials, it often involves the study of the physical and chemical reactions of solid materials during the heating process. For example, in the production and performance research of materials, it is necessary to heat, cool or insulate materials at certain temperatures; When thermal decomposition and gasification of solid materials occur, it is necessary to study the reaction of the material during the heating process. [0004] The reaction process of solid materials is not only affected by temperature, but also by the heating rate. In the current research on the heating process of solid materials, the heating process is often carried out by furnace temperature programming. That is to put the ...

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Problems solved by technology

For heating with a high heating rate, it is often difficult to meet the requirements by using the furnace temperature program. The heating furnace requires a large heating power to achieve rapid temperature changes, and due to the thermal inertia of the furnace, the end of the temperature rise cannot be accurately controlled.

In addition, due to the temperature rise of the furnace, in the continuous experiment process, after each sample experiment, the furnace needs to be cooled to a certain extent before the next sample experiment can be carried out. The cooling process of the furnace leads to a longer experimental period, which is not conducive to rapid experiment

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