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Hinged cubic press first-stage pressure increasing device

A technology of a six-sided top press and a high-pressure device, which is applied in the method of using atmospheric pressure to chemically change substances, the process of applying ultra-high pressure, chemical instruments and methods, etc., can solve problems such as low pressure and achieve pressure loading. Small, low probability of damage, excellent overall performance

Active Publication Date: 2020-03-31
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to design a high-pressure device that converts the six-sided top to the double-sided top in view of the current situation that the pressure of the booster device of the six-sided top press is relatively low. The characteristic of this device is that the pressure of the six-sided top press can be Increased to more than 10GPa, and the sample diameter is almost unchanged compared with existing high-pressure devices

Method used

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  • Hinged cubic press first-stage pressure increasing device
  • Hinged cubic press first-stage pressure increasing device
  • Hinged cubic press first-stage pressure increasing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Assembly of sealing pressure unit: put Φ 外径 =16.23mm, Φ 内径=6mm sealed pressure insulation cylinder into Φ 外径 =18.23mm, Φ 内径 =16.23mm sealing pressure metal cylinder, and then put the heating device into the sealing pressure insulation cylinder in turn to assemble the sealing pressure unit.

[0032] (2) Assembly of booster unit: Put Φ=6mm, h=6mm tungsten carbide booster column into Φ 外径 =18.23mm, Φ 内径 =16.23mm in a pyrophyllite ring, and then wrap a tungsten carbide booster plug with a diameter of Φ=14mm and h=7mm in a pyrophyllite ring. Finally, the booster plug and the booster column are combined to form a booster unit.

[0033] (3) Assembling of pressurization-insulation pre-sealed high-pressure device: put the unit assembled in (1) (2) into the pyrophyllite pressure transmission medium, and the order of placement is: pressurization unit, sealing unit, booster unit pressure unit. Finally, a symmetrical assembly with the sealing unit as the axis of symmetry ...

Embodiment 2

[0037] (1) Assembly of sealing pressure unit: put Φ 外径 =16.23mm, Φ 内径 =10mm sealed pressure insulation cylinder into Φ 外径 =18.23mm, Φ 内径 =16.23mm sealing pressure metal cylinder, and then put the heating device into the sealing pressure insulation cylinder in turn to assemble the sealing pressure unit.

[0038] (2) Assembly of booster unit: Put Φ=10mm, h=6mm tungsten carbide booster column into Φ 外径 =18.23mm, Φ 内径 =10mm in a pyrophyllite ring, and then wrap a tungsten carbide booster plug with a diameter of Φ=14mm and h=7mm in a pyrophyllite ring. Finally, the booster plug and the booster column are combined to form a booster unit.

[0039] (3) Assembling of pressurization-insulation pre-sealed high-pressure device: put the unit assembled in (1) (2) into the pyrophyllite pressure transmission medium, and the order of placement is: pressurization unit, sealing unit, booster unit pressure unit. Finally, a symmetrical assembly with the sealing unit as the axis of symmetry ...

Embodiment 3

[0044] (1) Assembly of sealing pressure unit: put Φ 外径 =16.23mm, Φ 内径 =10mm sealed pressure insulation cylinder into Φ 外径 =18.23mm, Φ 内径 =16.23mm sealing pressure metal cylinder, and then put the heating device into the sealing pressure insulation cylinder in turn to assemble the sealing pressure unit.

[0045] (2) Assembly of booster unit: Put Φ=10mm, h=6mm tungsten carbide booster column into Φ 外径 =18.23mm, Φ 内径 =10mm in a pyrophyllite ring, and then wrap a tungsten carbide booster plug with a diameter of Φ=14mm and h=7mm in a pyrophyllite ring. Finally, the booster plug and the booster column are combined to form a booster unit.

[0046] (3) Assembling of pressurization-insulation pre-sealed high-pressure device: put the unit assembled in (1) (2) into the pyrophyllite pressure transmission medium, and the order of placement is: pressurization unit, sealing unit, booster unit pressure unit. Finally, a symmetrical assembly with the sealing unit as the axis of symmetry ...

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Abstract

The invention discloses a pressurization-heat preservation pre-sealing pressing high-pressure and high-temperature device. The pressure of a primary assembly of a cubic press is increased to 12 GPa from 6 GPa. The high-pressure assembly comprises the following parts: (1) six holding-up hammers which are made of special materials and are synchronously driven by the cubic press, (2) a pyrophyllite pressure transfer medium with a pre-sealing edge or a gradient component, (3) two high-hardness material pressurizing plugs, (4) two high-hardness material pressurizing columns, (5) a sealing pressingmetal cylinder, (6) a sealing pressing heat preservation cylinder, (7) a sealing pressing unit composed of the sealing pressing metal cylinder and the sealing pressing heat preservation cylinder and (8) a pressure boosting unit composed of the pressurizing plugs and the pressurizing columns. The heating and heat preservation units are made of materials with low thermal conductivity and high resistivity. The high-pressure device can reach the pressure of 12 GPa. Compared with the existing device, the device provided by the invention increases pressure by 100% and increases the temperature by 1800 DEG C or above. The device has the advantages of stable and reliable high-pressure and high-temperature performance, large sample cavity size, high pressure generation efficiency and the like.

Description

technical field [0001] The invention relates to a pressurization-insulation pre-sealed high-pressure device, which can be used in large-cavity static high-pressure devices to synthesize diamond, cubic boron nitride and composite materials thereof, and can also be used in earth science research. This device therefore belongs to the field of high-pressure equipment in the production of superhard materials and in geophysical research. Background technique [0002] The pressure P and the temperature T as well as the chemical composition X of the substance are three independent physical parameters of any substance system. Among them, pressure, as an independent thermodynamic parameter, can effectively reduce the distance between atoms and increase the orbital coupling between adjacent atoms, thereby regulating the crystal structure and electronic structure of the substance, forming a state of matter that cannot be formed under normal conditions; and pressure As a strengthening m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J3/06
CPCB01J3/067
Inventor 寇自力王义鹏
Owner SICHUAN UNIV
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