PRESSURE GENERATION IN THE REACTION CELL USING SIX-PUNCH HIGH-PRESSURE PRESSES MANUFACTURED IN CHINA: A REVIEW

Abstract

The review is devoted to the analysis of existing experimental work on the study of pressure generation characteristics in the reaction volume of Chinese-made six-punch high-pressure presses. It is shown that one of the main problems in the operation of HP presses is a decrease in the efficiency of pressure transmission inside the cell at pressures above 5.5 GPa, which leads to a significant loss of pressure in the reaction volume. The above problem can be overcome by increasing the efficiency of pressure generation in the reaction volume of a cubic press through the creation of hybrid high-pressure cell designs consisting of different modular materials, optimization of the geometric parameters of the reaction volume, and improvement of the physical and mechanical properties of carbide punches.