Furnace body for thermal analysis instrument

Abstract

The invention relates to a furnace body for a thermal analysis instrument. The furnace body for the thermal analysis instrument comprises a hollow furnace body main body, more than two heat-conductingcolumns positioned below the furnace body main body as well as two groups or more of heaters wound on the outer surfaces of the heat-conducting columns; the section of the furnace body main body is dumbbell-shaped; two symmetrical sample cavities are formed in the furnace body main body; a hole is formed in the center and serves as a ventilation channel for gas to flow in the cavity; the plurality of heat-conducting columns are arranged below the two symmetrical sample cavities of the furnace body main body and are distributed in an axially symmetrical manner; the heaters comprise heating wires and are symmetrically wound on the heat-conducting columns. According to the furnace body for the thermal analysis instrument, the furnace body has a compact structure, the sample is heated symmetrically, the heating rate can be increased and high-power heating can be realized.

Description

technical field [0001] The invention relates to a furnace body for a thermal analysis instrument. Background technique [0002] At present, thermal analysis technology is used to measure the change of physical properties of substances with temperature under program temperature control, and is used to study physical parameters such as heat, mechanics, acoustics, optics, electricity, and magnetism that occur at a certain temperature. Change is a very important method of analysis and testing. In addition, different technical methods correspond to different thermal analysis instruments, but usually thermal analysis instruments include temperature controllers, furnace bodies, physical detection units, atmosphere controllers and data processing systems, among which the furnace body is the core component of thermal analysis instruments , to provide a uniform temperature environment for the sample to be supported. [0003] Specifically, it can be divided into differential scanning...

AI Technical Summary

Problems solved by technology

[0005] However, the current product performance index is too low. Most of the commercialized differential scanning calorimeters have a heating rate of 80K / min, and only a few can reach 100K / min, but the temperature rising index is not within the full temperature range of the instrument. Both can be achieved. When the furnace temperature reaches the high temperature zone of 773K, the actual heating rate of the differential scanning calorimeter will be lower than the index value

In addition, research on differential scanning calorimeters applied to magnetic environments is almost in its infancy

Images