Real-time monitoring method in metal friction wear self-repair process

A friction and wear, real-time monitoring technology, applied in electrical radiation detectors and other directions, can solve the problems of immaturity, large errors, and sensitivity of vibration and noise detection to the external environment, achieving long-term measurement and simple operation.

Inactive Publication Date: 2016-11-23
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Dalian Maritime University and other scholars use the contact resistance method to test the lubrication of the friction surface, but the test results do not have quantitative analysis ability and cannot reflect the self-repair process; the accuracy of

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  • Real-time monitoring method in metal friction wear self-repair process
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  • Real-time monitoring method in metal friction wear self-repair process

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Embodiment Construction

[0019] The present invention proposes a new detection method for detecting surface self-repair effects. The following takes the self-repair of the surface of the ring slider as an example and introduces the present invention in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only It is used to explain the present invention, not to limit the present invention. The specific method is as follows.

[0020] 1. The infrared light source adopts IR12-21C diode, the receiver adopts P3207-08 lead selenide photoconductive sensor, and the measuring head is about 10cm away from the surface. The laser diode is driven by a drive circuit composed of OPA2662, and the bias current circuit is provided by OPA602 and triode 2N3906 to provide bias current for the laser diode. The infrared probe is shown in the figure: 1, 2 are independent infrared light sources, and 2 is an infrared light-emitting diode. The infrared l...

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Abstract

The invention discloses a real-time monitoring method in a metal friction wear self-repair process, belongs to the self-repair surface online monitoring technology field and relates to a method presenting the friction wear repair effect through measuring temperature change of a self-repair process. As self-repair occurs in the friction wear process, a self-repair state can be presented through temperature change. After irradiation of an infrared source, infrared light is reflected by a surface of a friction pair and arrives an infrared sensor through a filter and an optical element, the reflected light signal is converted by the infrared sensor into an electrical signal, processing is carried out through a computer, and a temperature change curve of the self-repair process is finally acquired. According to the method, non-contact measurement is employed, sampling frequency is up to 200kHz, measurement precision is high, the scope is proper, and an original temperature field is not destroyed. The method is advantaged in that the method is more visual and accurate compared with a spectrum analysis method and a contact resistance method, and professional measurement knowledge and experience are not required.

Description

technical field [0001] The invention belongs to the field of infrared monitoring, and in particular relates to a real-time monitoring method in the self-repairing process of metal friction and wear. Background technique [0002] In recent years, great progress has been made in the detection technology for self-repair of worn surface, but most of these technologies require multiple downtime inspections of equipment; some people use scanning electron microscope, energy spectrometer and nano-indentation instrument to analyze the morphology, elements and The analysis of microscopic mechanical properties is complicated and also requires the machine to stop production. The development of online detection technology in self-repair detection provides a new way for self-repair detection. Dalian Maritime University and other scholars use the contact resistance method to test the lubrication of the friction surface, but the test results do not have quantitative analysis ability and ca...

Claims

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Application Information

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IPC IPC(8): G01J5/10
Inventor 王勇付秀丽潘延安林文星
Owner UNIV OF JINAN
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