Secondary anvil and secondary pressurizing unit of octahedral pressure cavity static high-pressure device

A high-pressure device and octahedron technology, which is applied in the field of pressure devices, can solve problems such as damage to the static high-pressure device of the octahedral pressure chamber, and achieve the effects of reducing the probability of firing, increasing the maximum pressure, and enhancing the pressure sealing ability.

Active Publication Date: 2013-12-18
FUNIK ULTRAHARD MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the secondary pressurization unit of the octahedral pressure chamber static high pressure device is generally surrounded by eight square secondary anvils with one corner cut off to form a cavity for placing the octahedral pressure transmission medium, such as figure 2 , Figure 4 , Figure 5 As shown, the sealing edge thickness of the two-stage pressurized unit composed of the two-stage anvil with this shape and structure is basically the same (see Image 6 ), the cavity pressure seal mainly depends on the friction between the sealing edge and the secondary anvil. Therefore, during the operation of the octahedral pressure cavity static high-pressure device, the cavity pressure cannot be sealed in the secondary booster unit, and the pressure suddenly occurs. The phenomenon of release (commonly known as blasting), causing serious damage to the static high pressure device of the octahedral cavity

Method used

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  • Secondary anvil and secondary pressurizing unit of octahedral pressure cavity static high-pressure device
  • Secondary anvil and secondary pressurizing unit of octahedral pressure cavity static high-pressure device
  • Secondary anvil and secondary pressurizing unit of octahedral pressure cavity static high-pressure device

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Embodiment 1

[0031] In this embodiment, the secondary anvil is made of tungsten carbide, such as Figure 7 , Figure 8 As shown, the anvil body is a cube, and the anvil surface 7 is an equilateral triangle surface formed by cutting off a corner on the cube anvil body, and a circle of outer ring surfaces 8 are arranged around the anvil body 7, and the outer ring surface 8 is composed of three It consists of trapezoidal slopes with the same shape and size. The upper bases of the three trapezoidal slopes are the three sides of the equilateral triangle anvil surface 7, and the lower bottoms of the three trapezoidal slopes form an equilateral triangle. The edge length of described cube anvil body is 18mm, and the side length of triangular anvil surface 7 is 3.5mm, and the included angle of triangular anvil surface 7 and anvil body top surface or bottom surface is 54 °, and the clamping angle of trapezoidal inclined surface and described anvil surface 7 The angle θ is 49°, and the height of the...

Embodiment 2

[0035] In the present embodiment, the manufacturing material of secondary anvil is identical with embodiment 1, and its shape is as follows Figure 7 , Figure 8As shown, the anvil body is a cube, and the anvil surface 7 is an equilateral triangle surface formed by cutting off a corner on the cube anvil body, and a circle of outer ring surfaces 8 are arranged around the anvil body 7, and the outer ring surface 8 is composed of three The trapezoidal slopes with the same shape and the same size are formed. The upper bottoms of the three trapezoidal slopes are three sides of the equilateral triangle anvil surface 7, and the lower bottoms of the three trapezoidal slopes form an equilateral triangle. The edge length of the cube anvil body is 18 mm. , the side length of the triangular anvil surface 7 is 2mm, the angle between the triangular anvil surface 7 and the top or bottom surface of the anvil body is 54°, the angle θ between the trapezoidal slope and the anvil surface 7 is 5°,...

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Abstract

The invention relates to a secondary anvil of an octahedral pressure cavity static high-pressure device. An anvil body is in a cube shape; an anvil surface is a regular triangular surface formed by cutting a corner of the cubic anvil body; at least one circle of outer ring surface is arranged around the anvil surface; the outer ring surface in each same circle comprises three trapezoidal slants which are same in shape and size; a regular triangle is enclosed by the bottom edges of the three trapezoidal slants. The secondary pressurizing unit of the octahedral pressure cavity static high-pressure device comprises the eight secondary anvils, a previous sealing strip and an octahedral pressure transmitting medium. Compared with the traditional secondary pressurizing unit, for the secondary pressurizing unit which comprises the secondary anvils disclosed by the invention, experiments indicate that the blasting probability is obviously reduced during operation and the maximal pressure which can be achieved a the body of an octahedral pressure cavity can be increased.

Description

technical field [0001] The invention belongs to a pressure device used in a superhigh pressure environment, in particular to a secondary anvil and a secondary booster unit in an octahedral pressure cavity static high pressure device used in material synthesis. technical background [0002] The unique two-stage pressurization unit of the static high-pressure device in the octahedral pressure chamber enables this static high-pressure device to generate a cavity high-pressure environment with a maximum pressure of about 90 GPa when using a secondary anvil made of polycrystalline diamond sintered body [S.Zhai, E.Ito, Geosci.Front.2101(2011)], even a secondary anvil made of tungsten carbide cemented carbide can generate a cavity high pressure environment with a maximum pressure of about 30GPa. Therefore, the use of an octahedral pressure chamber static high pressure device can directly convert graphite into diamond under higher pressure and temperature conditions, and synthesize ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J3/06
Inventor 王文丹贺端威
Owner FUNIK ULTRAHARD MATERIAL
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