An intelligent electro-friction carbon composite material and its manufacturing method and service monitoring method

A technology of carbon composite materials and smart electricity, which is applied in the direction of carbon preparation/purification, measuring devices, and measurement of electrical variables, which can solve the problems of difficult monitoring of electrical carbon composite materials

Active Publication Date: 2021-01-26
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides an intelligent electric friction carbon composite material and its manufacturing method and service monitoring method, which solves the problem of difficult monitoring of electric carbon composite materials during service, and provides real-time monitoring for the preparation of Functional electro-frictional carbon composites offer new ideas

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  • An intelligent electro-friction carbon composite material and its manufacturing method and service monitoring method
  • An intelligent electro-friction carbon composite material and its manufacturing method and service monitoring method
  • An intelligent electro-friction carbon composite material and its manufacturing method and service monitoring method

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Embodiment 1

[0039] Such as figure 1 As shown, the present invention provides an intelligent electric friction carbon composite material, including a material main body 1 and an intelligent structure embedded in the material main body 1; In the elongated hole 3, a launcher 4 and a power supply unit 5 connected to the launcher 4 are placed in the cylindrical through groove 2; stress sensors connected to the launcher 4 and the power supply unit 5 are inserted in the two elongated holes 3 6 and voltage sensor 7.

[0040] In this embodiment, the diameter of the cylindrical through groove 2 is greater than 1 / 3 of the diameter of the material main body 1, and the height of the cylindrical through groove 2 is 1 / 10 of the height of the material main body 1, and the diameter of the two elongated holes 3 is 1 / 10 of the material main body 1. 1 / 10 of the length of the main body 1.

[0041] In this embodiment, the material body 1 is made of carbon-copper composite material; the intelligent structure ...

Embodiment 2

[0051] Such as Figure 3-Figure 4 As shown, the present invention also provides a method for manufacturing an intelligent electric friction carbon composite material. An intelligent structural mold is built in the pressurized mold. The production process is as follows:

[0052] S1. Making a smart structure of carbon fiber reinforced thermoplastic composite material, and embedding stress sensors, voltage sensors, transmitters and power supply units into the smart structure;

[0053] S2, select pitch coke, petroleum coke, natural graphite powder and copper powder raw materials, and mix uniformly, make powdery mixture, wherein, pitch coke powder 40-60 parts, petroleum coke powder 20-30 parts, natural graphite powder 10- 20 parts, copper powder 60-80 parts;

[0054] S3. Put the powdery mixture into the pressurized mold, fix the lower die punch and the female die, and press down the upper die punch by 250-300MPa, transfer the pressure to the powdery mixture through the upper die p...

Embodiment 3

[0060] Such as Figure 5 As shown, the present invention also provides a service monitoring method of an intelligent electric friction carbon composite material, comprising the following steps:

[0061] A1. Use the power supply unit to convert the external electric energy, and supply the converted electric energy to the stress sensor, the voltage sensor and the transmitting device respectively;

[0062] A2. Use the stress sensor to collect the pressure signal of the intelligent electric friction carbon composite material, use the voltage sensor to collect the voltage signal at both ends of the intelligent electric friction carbon composite material, and transmit the collected pressure signal and voltage signal to the transmitting device;

[0063] A3. Use the transmitting device to convert the pressure signal and voltage signal into digital pressure detection signal and voltage detection signal, and send the converted signal to the local receiver for data processing, so as to c...

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Abstract

The invention provides an intelligent electro-friction carbon composite material and its manufacturing method and service monitoring method. The intelligent electro-friction carbon composite material includes a material body and an intelligent structure. The intelligent structure is embedded in the material body, and a pressure sensor and a pressure sensor are embedded in the intelligent structure. Voltage sensors, transmitters and power supply units, pressure sensors and voltage sensors generate signals by inducing local stress and local voltage, which can be converted into stress signals and voltage signals, and these signals are sent wirelessly through the transmitter, carrying stress and voltage information Signal transmission Real-time monitoring can be performed to the local receiver, and the power supply unit supplies power to the sensor and the transmitter by converting external electric energy. The invention can monitor the structural safety and health state of the electric carbon composite material in service in real time, solves the problem of difficult monitoring of the electric carbon composite material in service, and provides a new idea for preparing the electric friction carbon composite material with real-time monitoring function .

Description

technical field [0001] The invention belongs to the field of sliding electric contact materials, and in particular relates to an intelligent electric friction carbon composite material, a manufacturing method and a service monitoring method. Background technique [0002] Electric carbon materials are generally a kind of electrical material with carbon and graphite as the matrix and metal as the reinforcing phase. It combines the high specific strength of carbon, low expansion coefficient, good lubricity, and good electrical and thermal conductivity of copper. Advantages, current electric carbon materials have been widely used in the manufacture of fixed electrical contacts or rotating electrical contacts of electrical equipment, such as brushes for motors, graphite contacts for power switches and relays, and pantograph slides. Due to the effect of pressure during the sliding process, especially in the high-speed sliding process, the electric carbon material is likely to caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/16G01R19/25C01B32/05
CPCC01B32/05G01L1/16G01R19/2503
Inventor 魏文赋李箫波杨泽锋左浩梓廖前华吴广宁高国强
Owner SOUTHWEST JIAOTONG UNIV
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