Leveling device and method for testing Vickers hardness of high-hardness ceramic material

By designing a leveling device that includes a substrate, a floating plate, and a universal rotating connector, the problems of irregular indentation and inaccurate data in the testing of high-hardness ceramic materials were solved, realizing efficient and precise Vickers hardness testing and improving testing accuracy and reliability.

CN122084441APending Publication Date: 2026-05-26杭州智元研究院有限公司
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Patent Information

Application Number
CN202610057866.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-16
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing Vickers hardness testers lack precise pitch and deflection leveling functions, resulting in irregular indentations, inaccurate data, and indenter damage during testing of high-hardness ceramic materials. Furthermore, traditional leveling methods are inaccurate and inefficient, failing to meet the precision testing requirements of high-hardness materials.

Method used

Design a leveling device including a substrate, a floating plate, a universal rotating connector, and leveling screws. The floating plate can be pitched and deflected through the universal rotating connector. Combined with a universal bubble level, the sample surface can be directly adjusted to be level, ensuring that it is parallel to the indenter. The test is carried out using the XY movement platform of the hardness tester.

Benefits of technology

It enables precise leveling of high-hardness ceramic materials, significantly improving testing accuracy and reliability, reducing data dispersion, protecting the diamond indenter, and improving testing efficiency and repeatability.

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Abstract

The invention provides a leveling device and method for Vickers hardness testing of a high-hardness ceramic material. The device aims to solve the problems of irregular Vickers hardness testing indentation, inaccurate data and indenter damage caused by the fact that the upper surface and the lower surface of a high-hardness ceramic sample are not parallel due to insufficient machining precision. The device comprises a base plate used for being fixed on an original sample table of the durometer, a floating plate connected above the base plate through a spherical hinge assembly, and three leveling knobs which are distributed in a triangular shape and are screwed into the floating plate, and the lower ends of the leveling knobs abut against positioning holes of the base plate. By adjusting the leveling knob, the floating plate can be driven to do universal micro motion around the center of the spherical hinge, so that the pitching and deflection angles of a to-be-tested sample fixed on the upper surface of the floating plate can be directly adjusted. The device is compact and low in structure, completely does not interfere with the original functions of the hardness tester, ensures that the test surface is strictly parallel to the pressure head in a manner of directly leveling the upper surface of a sample, and remarkably improves the test precision and reliability.
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