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Leeb hardness non-standard test method and impact hardness tester

A technology of Leeb hardness and test method, which is applied in the field of impact hardness tester and test material surface hardness, which can solve the problem of affecting work efficiency, limiting the scope of application of Leeb hardness and even impact test methods, and increasing the difficulty of operation for testers, etc. problems, to achieve the effect of expanding the scope of application, improving test efficiency, and simplifying operation steps

Inactive Publication Date: 2020-04-17
武宇生
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Problems solved by technology

Therefore, accurate measurement of the Leeb hardness of metal materials requires strict operation under standard conditions, but this undoubtedly increases the difficulty of operation for testers and affects work efficiency
In addition, for some large-scale equipment, irregular workpieces, and high-temperature online quality control, the requirements of the above-mentioned standard state cannot be met, thus limiting the scope of application of Leeb hardness and even impact test methods

Method used

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  • Leeb hardness non-standard test method and impact hardness tester
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  • Leeb hardness non-standard test method and impact hardness tester

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Embodiment Construction

[0030] The following is a detailed description of the non-standard Leeb hardness test method and impact hardness tester of the present invention in conjunction with the accompanying drawings and specific examples, in order to have a clearer understanding of the test procedures, structure, composition and use of the present invention. In this way, the protection scope of the present invention is limited.

[0031] The impact rebound analysis diagram of the Leeb hardness standard test method is as follows figure 1 As shown, in the standard state, the impact body vertically impacts the test surface from top to bottom along the direction of the gravity line. Suppose the mass of the impact body is m, the impact point is O, the position of measuring speed is A, the distance between A and O is h, and the impact velocity of the impact body at point A is V A , The instantaneous velocity before the impact at point O is V O , The instantaneous velocity after impact at point O is V O' , The re...

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Abstract

The invention discloses a Leeb hardness non-standard test method, which can correct a measurement or calculation result according to an impact angle, a measurement distance, a test part temperature and the like in a non-standard state, simplifies operation steps, improves test efficiency and expands an application range. In addition, the invention also relates to an impact hardness tester, a measuring system of the impact hardness tester comprises an angle measuring module or a temperature measuring module, and the Leeb hardness of the metal material can be detected in a non-standard state.

Description

Technical field [0001] The invention belongs to a surface hardness test method, in particular to a test method for testing the surface hardness of a material in a non-standard state according to the Leeb hardness test principle. [0002] The present invention also relates to an impact hardness tester, including a housing, an impact body, a driving system, and a measurement system. The measurement system includes an angle measurement module or a temperature measurement module, which can be in a non-standard state (non-standard angle, non-standard temperature, etc.) Test the surface hardness of materials according to the test principle of Leeb hardness. Background technique [0003] Hardness is a basic property of materials. The Leeb hardness of metals is a routine test item in metallurgy, machinery and other industries. Related standards include "Metallic Materials Leeb Hardness Test Part 1: Test Method" GB / T17394.1- 2014 and "Metallic Material Leeb Hardness Test Part 2: Hardness T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/48G01N3/52G01N3/02G01N3/06
CPCG01N3/48G01N3/52G01N3/02G01N3/06G01N2203/001G01N2203/0083G01N2203/0694G01N2203/0682G01N2203/0676
Inventor 武宇生王昌明寇逸恬王刚王薇恩武海蔚
Owner 武宇生
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