Controllable magnetic field and atmosphere multi-mode fretting-sliding wear test device and method

By using a controllable magnetic field and atmosphere multi-mode micro-motion-sliding wear test device, the problem of dynamic matching between magnetic field and mechanical parameters was solved, and precise control of multi-mode friction and wear test and atmosphere environment was achieved, which improved the reliability of test data and theoretical support for the prediction of material service life.

CN120467939BActive Publication Date: 2026-01-27SOUTHWEST JIAOTONG UNIV
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Patent Information

Application Number
CN202510611696.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-01-27
Estimated Expiration
2045-05-13

AI Technical Summary

Technical Problem

Existing experimental equipment cannot monitor the dynamic fluctuations of magnetic attraction force in real time, lacks in-situ detection and closed-loop feedback mechanisms, cannot achieve precise matching of magnetic field and mechanical parameters, cannot simulate the magnetic field-mechanical coupling effect under different friction modes, and lacks controllable atmosphere chamber design, resulting in insufficient research on tribo-oxidation behavior.

Method used

A controllable magnetic field and atmosphere multi-mode micro-motion-sliding wear testing device is provided, including a magnetic field generating module, a magnetic attraction closed-loop control system, a friction and wear testing platform, and an atmosphere environment control mechanism. The device monitors changes in magnetic attraction force through sensors, uses a servo motor loading unit for closed-loop control, integrates micro-motion, sliding, and pin-disc friction modes, and achieves regulation of vacuum, inert gas, and oxygen concentration through the atmosphere environment control mechanism.

Benefits of technology

It achieves closed-loop control of magnetic attraction force, ensuring that experimental conditions are consistent with actual working conditions, supports multi-mode friction and wear tests, provides research basis for friction oxidation behavior under extreme environments, and improves the reliability of experimental data and gas utilization rate.

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Abstract

The application discloses a controllable magnetic field and atmosphere multi-mode fretting-sliding wear test device and method, and belongs to the technical field of material friction and wear performance test. The device comprises a magnetic field generating module, a magnetic attraction force closed-loop regulation and control system, a friction and wear test platform and an atmosphere environment control mechanism. The friction and wear test platform comprises a fretting friction and wear module and a sliding friction and wear module. The fretting friction and wear module and the sliding friction and wear module are respectively used for fretting friction and wear test and sliding friction and wear test of the sample to be tested. The atmosphere environment control mechanism is used for controlling the atmosphere environment of the sample to be tested. The application can solve the technical bottleneck that the traditional device cannot dynamically match the magnetic field and mechanical parameters, lacks multi-mode friction and wear test simulation and controllable atmosphere environment, significantly improves the reliability and applicability of test data, and provides technical support for the research on material friction and wear behavior under a complex magnetic field environment.
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