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A high-pressure device for testing the compressive strength of hollow microspheres under isostatic pressing by pneumatic method

A technology of hollow microspheres and high-pressure devices, which is applied in the direction of measuring devices, specific gravity measurement, instruments, etc., can solve the problems of cumbersome operation, harsh processing requirements, and high compressive strength requirements of prepared materials, and achieve simple compressive strength and simple operation Effect

Active Publication Date: 2016-08-10
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the isostatic compressive strength of hollow microspheres that no one uses the high-pressure chamber of small pipe diameter and large height in the prior art, and the high-pressure chamber with large diameter and low height of the existing high-pressure device Its material and structural equipment and processing requirements are harsh, the requirements for the compressive strength of the prepared materials are high, the operation is cumbersome, and the connection structure of the entire high-pressure chamber has high requirements for airtightness. It provides a design structure with a small diameter and a large height. The hyperbaric chamber device is used to test the compressive strength of hollow microspheres under isostatic pressure

Method used

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  • A high-pressure device for testing the compressive strength of hollow microspheres under isostatic pressing by pneumatic method
  • A high-pressure device for testing the compressive strength of hollow microspheres under isostatic pressing by pneumatic method
  • A high-pressure device for testing the compressive strength of hollow microspheres under isostatic pressing by pneumatic method

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Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 1 The high-pressure device for testing the compressive strength of hollow microspheres under isostatic pressure by air pressure method includes: high-pressure tube cabin 1, sealing cover with hook 2, top cover with thread 3, O-ring 6, and 2 high-pressure gas pressurization system connections The mouth 5 and the sample storage container 8; the O-ring 6 is used to seal between the sealing cover 2 with a hook and the high-pressure tube cabin 1, and then the sealing cover 2 with a hook is pressed with a threaded top cover 3 and fixed with an annular thread 7; The sample storage device 8 is hung on the lower hook 4 of the sealing cover 2 with a hook. The inner diameter of the high-pressure device is 25mm, the thickness of the pipe wall is 12mm, and the height is 450mm. The hook 4 is a non-closed hook, and the connection port 5 of the high-pressure gas pressurization system is respectively connected with a pressure sensor and a pressure pump. The sample stora...

Embodiment 2

[0032] The high-pressure device for testing the compressive strength of hollow microspheres under isostatic pressure by air pressure method includes: high-pressure tube cabin 1, sealing cover with hook 2, top cover with thread 3, O-ring sealing ring 6, and 2 connection ports for high-pressure gas pressurization system 5 and a sample storage container 8; the seal cover 2 with a hook and the high-pressure tube cabin 1 are sealed with an O-ring 6, and then the seal cover 2 with a hook is pressed with a threaded top cover 3 and fixed with an annular thread 7; the sample The storer 8 is hung on the hook 4 at the lower part of the sealing cover 2 with a hook. The inner diameter of the high-pressure device is 25mm, the thickness of the pipe wall is 12mm, and the height is 450mm. The hook 4 is an oval-like closed hook, and the connection port 5 of the high-pressure gas pressurization system is respectively connected to a pressure sensor and a pressure pump. The sample storage device ...

Embodiment 3

[0035]The high-pressure device for testing the compressive strength of hollow microspheres under isostatic pressure by air pressure method includes: high-pressure tube cabin 1, sealing cover with hook 2, top cover with thread 3, O-ring sealing ring 6, and 2 connection ports for high-pressure gas pressurization system 5 and a sample storage container 8; the seal cover 2 with a hook and the high-pressure tube cabin 1 are sealed with an O-ring 6, and then the seal cover 2 with a hook is pressed with a threaded top cover 3 and fixed with an annular thread 7; the sample The storer 8 is hung on the hook 4 at the lower part of the sealing cover 2 with a hook. The inner diameter of the high-pressure device is 25mm, the thickness of the pipe wall is 20mm, and the height is 450mm. The hook 4 is an oval-like closed hook, and the connection port 5 of the high-pressure gas pressurization system is respectively connected to a pressure sensor and a pressure pump. The sample storage device i...

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Abstract

The present invention discloses a high pressure apparatus for testing compressive strength of a hollow microsphere under an isostatic pressure through an atmospheric pressure method. The high pressure apparatus comprises: a high pressure pipe cabin (1), a sealing cover (2) having a hook, a top cover (3) having threads, an O-shaped sealing ring (6), two high pressure gas pressurization system connection ports (5) and sample storage devices (8), wherein the position between the sealing cover having the hook and the high pressure pipe cabin is sealed with the O-shaped sealing ring, the sealing cover having the hook is pressed with the top cover having the threads and is fixed with the annular threads, the sample storage device hangs on the hook on the lower portion of the sealing cover having the hook and comprises a cylinder (13), a top cover (9) having threads, a hook ring and gas permeable holes, and a bottom cover (12) having threads and a hook, and the top cover (9) and the cylinder, and the bottom cover (12) and the cylinder are respectively fixed with annular threads (15 16). According to the high pressure apparatus, the small pipe diameter and large height design structure is adopted, the atmospheric pressure method is adopted to test the isostatic pressure compressive strength of the hollow microsphere, the wide selection is provided for equipping and processing of the material and the structure, and the operation is simple.

Description

technical field [0001] The invention belongs to the technical field of high-pressure containers, and in particular relates to a detection device for testing the compressive strength of hollow microspheres under isostatic pressure by an air pressure method. Background technique [0002] The compressive strength under isostatic pressure is the characterization value of the important mechanical properties of hollow microsphere powder. The air pressure method to measure the isostatic compressive strength of the hollow microsphere powder is based on the measurement of the density change of the hollow microsphere powder after a certain pressure is applied. There are many methods for measuring the compressive strength under isostatic pressure, mainly including water (solvent) pressure method and air pressure method. There are differences in the results measured by these methods for different hollow microsphere pore structures. For the determination of hollow microsphere powder, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N9/36
Inventor 张敬杰严开祺李冰宋广智
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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