Simple vacuum microwave furnace device

Abstract

The invention provides a simple vacuum microwave reaction furnace device which comprises a furnace shell, a furnace door and a furnace hearth, wherein the furnace hearth is arranged in a tank body ofthe furnace shell; through a heat preservation device, a microwave generation device, an infrared probe, a vacuum atmosphere system, a temperature control module, a microwave control module and a sealing device, the microwave power of a vacuum microwave reaction furnace can be steplessly adjusted; the heat preservation device is arranged in the furnace hearth; the microwave generation device is arranged at the top of the furnace hearth and penetrates through the furnace hearth; the infrared probe is arranged on the furnace door and used for measuring the temperature of the furnace hearth; thesealing device is used for sealing the furnace hearth and the furnace door; by utilization of infrared rays, the temperature in a test sample and the microwave action time changing variation relationship at different microwave power levels can be correctly measured and recorded, as well as the variation process of the temperature in the test sample can be measured; and for a test sample of which the wave absorbing ability is weak, a double-heat-source mixed heating process can be adopted, thereby reaching the set temperature. The simple vacuum microwave reaction furnace device is simple in structure, low in cost, convenient to use, and suitable for common teaching experiments and general scientific researches.

Description

technical field [0001] The invention belongs to the field of vacuum microwave ovens, and in particular relates to a simple vacuum microwave oven device capable of steplessly adjusting microwave radiation power. Background technique [0002] Traditional heating is carried out by convection, radiation and conduction, and the heated sample has a temperature field of high outside and low inside, while the vacuum furnace of the traditional heating method has been widely used in powder sintering, chemical synthesis, surface heat treatment, etc. In Materials Science and Engineering A 478 (2008) 87-92 disclosed in the use of traditional heating vacuum furnace thermal diffusion reaction method to prepare (Al 2 o 3 +TiB 2 ) / Al composites. [0003] Microwaves in microwave ovens use electromagnetic waves with a wavelength of 1cm to 1m. Microwave heating has the characteristics of integrity and selectivity, as well as energy saving, time saving, high efficiency and environmental frien...

AI Technical Summary

Problems solved by technology

At present, the existing vacuum microwave ovens are relatively expensive. For example, the vacuum microwave oven produced by Beijing Nayuan Microwave Co., Ltd. has a large volume, and the temperature measurement adopts a non-contact method between the thermocouple and the sample, and the temperature measurement accuracy is not high enough. At the same time, its thermocouple It is too long to extend into the furnace, and the operation is inconvenient, especially the installation of the sample is inconvenient, and the process of microwave action cannot be observed

In addition, for example, the vacuum microwave oven of Hunan Zhongsheng Thermal Energy Technology Co., Ltd. has a complex structure and is expensive, and is not suitable for ordinary teaching experiments and general scientific research.

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