Heating and pressure-maintaining direction unisotonic oil-supplying hydraulic controlling system for hexahedral top pressing machine
A hydraulic control system and technology of a six-sided top press, applied in the hydraulic field, can solve problems such as affecting the compression stroke and pressurization efficiency of the equipment, unable to meet the synthetic production of large particles of diamond, hindering pressure transmission, etc., so as to improve the pressing stroke and equipment. Effects of pressurization efficiency, improvement and pressure transfer effect
Inactive Publication Date: 2009-05-06
ZHONGNAN DIAMOND CO LTD
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Problems solved by technology
In this synthesis method, the compression coefficient of the 12 pyrophyllite sealing edges decreases with the increase of pressure and temperature, which hinders the transmission of pressure to the center of the synthesis chamber, affects the compression stroke and pressurization efficiency of the equipment, and the synthesis time of the supercharger is limited. Restrictions, unable to meet the needs of large-grain diamond synthesis production
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[0010] figure 1 The labels of the hydraulic components in the hydraulic control system are: plunger oil pump 1, 13, check valve 2, 14, 19, 20, electro-hydraulic directional valve 3, electromagnetic directional valve 4, 6, 7, 12, 27 . Control unloading valve 17, adjustable throttle valves 21, 22, 23, 24, 25, 26, ultra-high pressure hydraulic control check valves 33, 34, 35, 36, 37, 38, pressure-holding direction hydraulic cylinders 39, 40, 41,42, heating direction hydraulic cylinders 43,44, accumulator 46.
[0011] see figure 1 , the hydraulic control system of the present invention is provided with two ultra-high pressure oil pumps 9, 11, wherein the ultra-high pressure oil pump 9 communicates with the communication valve 8 through the check valve 20, and the outlet of the communication valve 8 communicates with the hydraulic cylinder 39, 40, The rear chambers of 41 and 42 are connected and provide ultra-high pressure oil for it. The ultra-high pressure oil pump 11 is conn...
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The present invention relates to a hydraulic pressure control system used for anisobaric supplying oil to a diamond synthetic hexahedral press towards heating and pressure holding direction. The system can respectively isobaric or anisobaric supply oil to the hydraulic cylinders of heating and pressure holding direction according to the diamond synthetic technology by arranging a superpressure oil pump, a superpressure liquid control spool valve and relevant hydraulic elements, so as to realize a collocation and combination of different pressure. The system is applied to a symmetric or asymmetric anvil and can improve the sealing and pressure transmitting effects of a synthetic cavity and increase a high compacting stroke and a synthesis efficiency, so as to satisfy the requirement of synthesizing a large particle diamond product with a high quality grade.
Description
technical field [0001] The invention belongs to the technical field of hydraulic pressure, in particular to a hydraulic control system for heating and pressure-holding directions of a six-sided press used for diamond synthesis and oil supply at different pressures. Background technique [0002] At present, the hydraulic system of the six-sided top diamond synthesis equipment mostly uses superchargers to obtain ultra-high pressure, and supplies oil to the six cylinders at the same time through the connecting valve, and the pressure and thrust of each cylinder are the same. The cross-section of the six anvils used is square, of which, two anvils in any direction of up and down, left and right, and front and back can be used as electrified heating anvils, and the remaining four anvils are called pressure-holding anvils. The synthesis cavity is a regular hexahedron, and the synthesis block is composed of pyrophyllite hollow block, conductive ring, synthesis rod and other parts. ...
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IPC IPC(8): B01D3/06
Inventor 郭建国张帅
Owner ZHONGNAN DIAMOND CO LTD