Loading device for rock sample force-thermal coupling under microwave radiation and test method of same

A technology of rock sample and microwave radiation, which is used in measurement devices, material analysis using microwave means, and material strength testing using stable tension/pressure. problem, to achieve the effect of less microwave dissipation and avoidance of damage

Inactive Publication Date: 2017-05-31
NORTHEASTERN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The existing industrial microwave oven system is generally a closed cavity type, and the rectangular waveguide can only tr...

Method used

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  • Loading device for rock sample force-thermal coupling under microwave radiation and test method of same
  • Loading device for rock sample force-thermal coupling under microwave radiation and test method of same
  • Loading device for rock sample force-thermal coupling under microwave radiation and test method of same

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Embodiment Construction

[0022] Such as figure 1 As shown, a force-thermal coupling loading device for rock samples under microwave radiation is provided with a sample indenter 6 in the press frame 8, and the sample indenter 6 is connected to the computer 3 through a hydraulic control mechanism. A pressure sensor 5 is provided on the mechanism, and a displacement sensor 7 is provided on the sample indenter 6. The pressure sensor 5 and the displacement sensor 7 are connected to the computer 3 respectively, and the strength and deformation of the sample are monitored by the pressure sensor 5 and the displacement sensor 7. Measurement: a microwave control cabinet 9 is provided outside the press frame 8, and a magnetron 10 is arranged in the microwave control cabinet 9. The output end of the magnetron 10 is connected to a rectangular waveguide 11, and the rectangular waveguide 11 passes through a circulator water load 12 Connect the waveguide converter 13, the output end of the waveguide converter 13 is c...

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Abstract

The invention relates to a loading device for rock sample force-thermal coupling under microwave radiation, wherein a sample pressure head is arranged in a press frame, the pressure head is connected with a computer through a hydraulic control mechanism, a pressure sensor is arranged on the hydraulic control mechanism, a displacement sensor is arranged on the sample pressure head, the pressure sensor and the displacement sensor are connected with the computer respectively; a microwave control cabinet is arranged at the external of the press frame, a magnetron is arranged in the microwave control cabinet, an output end of the magnetron is connected with a rectangular waveguide, the rectangular waveguide is in water-loading connection with a waveguide convertor through a circulator, an output end of the waveguide convertor is in coaxial-waveguide connection with a microwave probe; the rock sample clamped on the sample pressure head is provided with a drill hole, the microwave probe is inserted into the drill hole. The device provided by the invention has the advantages that direct measurement on the mechanical property of the rock sample in a microwave field can be realized, the force-thermal coupling of the rock sample under the microwave radiation is realized.

Description

technical field [0001] The invention relates to a force-thermal coupling loading device for a rock sample under microwave radiation and a test method thereof, belonging to the field of laboratory tests of mining engineering and geotechnical engineering. Background technique [0002] Rock crushing is the fundamental science of mining engineering, and the breaking of rock blocks from rock masses is the most basic and simple process frequently encountered in mining and geotechnical engineering operations. The constant occurrence and resolution of the fundamental contradiction of breaking rocks and preventing rock breaking in mining production maintains the normal production of mining and also promotes the development of mining technology. At present, the traditional mechanical rock drilling and blasting methods are still the main means of crushing hard rock in mines. However, the accuracy of the blasting method and the tool wear of mechanical rock breaking are the main problems...

Claims

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Application Information

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IPC IPC(8): G01N3/12G01N22/00
CPCG01N3/12G01N22/00
Inventor 李元辉卢高明冯夏庭张希巍温建华羿健卓郑帅孙健
Owner NORTHEASTERN UNIV
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