A high-temperature heating device based on double-combined reflectors

Abstract

The invention discloses a high-temperature heating device based on a double-combined reflector, which is used to improve the light focusing effect at the sample. The heating lamp tube and the trough-shaped combined reflector include an elliptical arc reflector and two arc reflectors. The two arc reflectors extend from both ends of the ellipse arc reflector respectively. The heating lamp is located at the first The focal point is located at the center of the two arc reflectors. The elliptical arc reflector fully focuses the light emitted by the heating lamp at the first focal point onto the sample at the second focal point; secondly, the arc reflector reflects the light at a smaller emission angle to the elliptical surface through the first focal point , and finally focus on the sample; the structure of the reflector makes the overall layout of the heating unit more compact, and at the same time ensures that the total depth of the reflector is not too shallow, which is more conducive to concentrating light to increase the heating temperature of the sample.

Description

Technical field [0001] The present invention relates to the field of neutron scattering experiments, in particular to a high-temperature heating device based on a double combination reflector. Background [0002] With the deepening of the study of the microstructure of materials, neutron scattering method or synchrotron radiation method has been more popularized and applied. Taking the neutron scattering method as an example, scattering experiments at room temperature and lower heating temperature have mature practical experience, and in order to more accurately understand the real-time changes in material properties at high temperatures, it has become more and more urgent to design a high-temperature heating furnace. From the world's existing four major hash neutron source official website and public information show that in the high-temperature in situ experiment of engineering samples, two methods of coil induction heating and infrared heating are usually used, and the inducti...

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Problems solved by technology

[0003] The infrared heating method usually uses a halogen tungsten lamp as the light source. In order to improve the heating effect, it is equipped with a reflector to focus the light on the sample. At present, the maximum heating temperature of engineering samples that can be achieved is about 1000°C. Some neutron scattering in-situ experimental heating furnaces cannot meet the requirements, and a higher temperature heating furnace needs to be designed

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