Low-temperature high-vacuum combination heating table

Abstract

The invention discloses a low-temperature high-vacuum combination heating table. A quartz base is mounted in a vacuum protective hood, and a sample is placed on the quartz base. The heating table canbe used for heating the sample through heat conduction. The vacuum protective hood is provided with an opening, and a vacuum protective hood cover is connected onto the vacuum protective hood and is provided with a visible window. A first port of a four-way pipe communicates with the vacuum protective hood, a deflation valve is connected between a second port and a vacuum gage, a first control valve is connected between a third port and a protective gas storage tank, a second control valve is connected between a fourth port and a control system, the control system is connected with a gas exhausting pipeline, and the gas exhausting pipeline communicates with a vacuum pump and a molecular pump. The heating table has the following advantages that a heating temperature can be accurately controlled in a low-temperature range (600 DEG C or below), and heating experiment in a vacuum environment or inert shielding gas introduced environment can be carried out as required.

Description

technical field [0001] The invention relates to the field of heating equipment, in particular to a low-temperature and high-vacuum composite heating table for heating and brazing diamond. Background technique [0002] In the field of brazing diamond tools, since most of the diamond brazing solders are high-element, high-melting alloys, most of the equipment currently used to prepare brazing diamond tools is a high-temperature brazing furnace or a tube furnace. In recent years, more and more researchers have begun to pay attention to the quality of brazed diamond tools in order to prepare high-end and excellent brazed diamond tools. In order to reduce the thermal damage of diamond, the research of low temperature brazing diamond is getting hotter and hotter. However, the existing equipment for preparing brazed diamond tools has the following disadvantages for researchers: First, most of the existing equipment for preparing brazed diamond tools uses high-temperature thermocou...

AI Technical Summary

Problems solved by technology

However, the existing equipment for preparing brazed diamond tools has the following disadvantages for researchers: First, most of the existing equipment for preparing brazed diamond tools uses high-temperature thermocouples. As a result, in high-temperature regions, the thermocouple temperature control The accuracy is relatively accurate, but the temperature control is not accurate in the low temperature area, especially the area below 450 °C; second, for the tube furnace, because the quartz tube is round, it is very troublesome to load the sample in the experiment; third, there are few observation windows, Difficult to observe brazing of diamond tools

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