Insulation resistance test device of ceramic coating under high pressure state

A technology of insulation resistance testing and ceramic coating, which is applied in measuring devices, measuring resistance/reactance/impedance, measuring electrical variables, etc., can solve problems such as the inability to accurately test the resistance of ceramic insulating coatings, and achieve avoidance of influence and accurate resistance effect of size

Inactive Publication Date: 2014-06-18
SOUTHWESTERN INST OF PHYSICS +1
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved in the present invention is: the existing test device cannot accurately test the resistance of the ceramic insulating coating under the state of strong pressure

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  • Insulation resistance test device of ceramic coating under high pressure state

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Embodiment Construction

[0019] The device for testing the insulation resistance of ceramic coatings under strong pressure according to the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0020] Such as figure 1 Shown, the insulation resistance testing device of ceramic coating under the strong pressure state of the present invention comprises: insulating base 1, coating surface resistance shielding device 3, the pressure transmission device 7 that has indenter 6, conductive electrode 4,5 and Insulation Resistance Test System8.

[0021] The insulating base 1 is an insulator in the shape of a flat plate, a tube, or a column, and a sample is placed on the insulating base 1 , and the upper surface of the sample is coated with a ceramic coating 2 .

[0022] The coating surface resistance shielding device 3 is a sheet insulator, covering the top of the sample, used to insulate between the pressure transmission device 7 and the ceramic coat...

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Abstract

The invention belongs to the field of resistance test technology of ceramic insulation coatings, and specifically relates to an insulation resistance test device of the ceramic coating under a high pressure state. The device provided by the invention comprises an insulation pedestal, a coating surface resistance shielding device, a pressure transmission device, conductive electrodes and an insulation resistance test system. A specimen with the upper surface of the device coated by the ceramic coating is disposed above the insulation pedestal; the coating surface resistance shielding device covers on the specimen; the pressure transmission device is contacted with the coating surface resistance shielding device and is used for applying pressure to the ceramic coating; two conductive electrodes pass through the coating surface resistance shielding device and are disposed above the coating surface; and the conductive electrodes are accessed into the insulation resistance test system. The device provided by the invention can accurately reflect the resistance size of the ceramic insulation coating under a specific pressure state, and can reflect relationships of the resistance size and the load, thereby preventing influences of the applied high pressure to the ceramic coating electrical insulation performance.

Description

technical field [0001] The invention belongs to the technical field of resistance testing of ceramic insulating coatings, and in particular relates to an insulation resistance testing device of ceramic coatings under strong pressure. Background technique [0002] In fusion reactors, ceramic insulating coatings are generally used to prevent annular eddy currents between metal materials. This coating is thin, only 0.3~0.5mm, and it needs to work for a long time under relatively large and complex stress conditions, while insulating ceramics The coating is brittle, and the long-term complex force has a great influence on the insulation resistance of the ceramic coating. Therefore, the fusion reactor requires the ceramic insulating coating not only to have good insulation performance, but also to be able to work for a long time under complex stress conditions, so Testing the resistance of ceramic insulating coatings under strong stress has become an essential requirement. [000...

Claims

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Application Information

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IPC IPC(8): G01R27/02
Inventor 罗蓉蓉李鹏远韩石磊廖敏陈辉杨淑娟周晓璐康道安许丹张博
Owner SOUTHWESTERN INST OF PHYSICS
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