Miniature heating pressurizer for experiments

Abstract

The invention discloses a miniature heating pressurizer for experiments. The whole set of device consists of an outer die and an inner die; the outer die consists of an upper part (1) and a lower part (2); a slide block (3) which can move along the axial direction and is in close fit is arranged in the outer die; the lower part of the slide block is provided with a positioning groove; the lower part comprises a cavity in which the inner die is arranged; the upper part of the lower bottom surface in the cavity is provided with a positioning groove; the inner die consists of an upper pressure lever (4), a lower pressure lever (5) and a round-hole die sleeve (6); the pressure head of the upper pressure lever is matched with the positioning groove on the lower part of the slide block of the outer die; the pressure head of the lower pressure lever is matched with the positioning groove on the upper part of the lower bottom surface in the cavity; and the lever bodies are arranged in the round-hole die sleeve and can move along the central axis of the round-hole die sleeve. When the miniature heating pressurizer is used, the outer die seals injected gas, the gas in the outer die is expanded during heating because of the principle of thermal expansion, and the pressure is transferred to the pressure lever of the inner die through the slide block in the outer die and further transferred to a miniature sample (7) to be prepared, so that the miniature sample is always subjected to the action of external pressure when generating reaction denaturation in the heating process of the miniature sample. The whole set of device has the advantages of simple structure, small volume, easy processing, convenient assembly, and convenient use in various heating environments in laboratories.

Description

technical field [0001] The invention provides a small-scale heated and pressurized device for testing, which belongs to the technical field of material testing equipment. Background technique [0002] In the field of material science and other fields, the research on various properties of materials is usually carried out on small samples. The process is: making raw materials into small samples in the form of discs or cubes, and then making them whole by heating and other means. Reaction, denaturation or sintering to obtain small samples of various materials to be tested, and finally conduct various tests and analyzes on them to obtain various property parameters of the sample materials. This process of forming first and then heat treatment for preparing small samples has become one of the indispensable means in scientific research. [0003] The traditional method of preparing small samples is to mechanically press or machine the raw materials into disc or square small sampl...

AI Technical Summary

Problems solved by technology

Although spark plasma sintering technology (SPS) solves this problem, it can realize the treatment effect of pressing and heating at the same time, and obtain small samples with dense internal structure, but the equipment is bulky and expensive, and the cost of unit sample preparation is relatively high , and there are very few units with SPS equipment in China, it is very inconvenient to prepare small samples and cannot be widely used in laboratories

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