Brinell hardness measuring system and method

Abstract

The invention relates to a Brinell hardness measuring system and a Brinell hardness measuring method. The Brinell hardness measuring system comprises an optical scanning unit, an image processing unit, a data processing unit and a result display unit; the optical scanning unit comprises a light knife projection module, a microimaging module and an image collecting module; the light knife projection module generates a standard line light source; the microimaging module is used for collecting a light knife image signal in real time of a scanned indentation; the image collecting module is used for converting the image signal collected in real time to the digital image processed by the computer; the image processing unit is used for processing the indentation depth and diameter of the digitalimage data; the data processing unit is used for verifying the data of the indentation depth and diameter acquired by the image processing unit. The Brinell hardness measuring system and the method overcome the problems that the existing measurement method is easy to cause artificial bias and low in working efficiency; the Brinell hardness measurement is exact in result, simple in operation, highin working efficiency, small in artificial bias, and high in reliability.

Description

technical field [0001] The present invention relates to a Brinell hardness measurement system and method, in particular to a non-contact optical three-dimensional profile scanning technology to realize non-contact scanning of indentations, real-time testing of indentation diameter and depth, thereby obtaining Brinell hardness systems and methods. Background technique [0002] The principle of the Brinell hardness test is to press a cemented carbide ball with a diameter of D (mm) into the surface of the metal to be tested with a certain test force F (N) (the unit of force is usually kgf), and keep it for a specified time. Remove the test force, measure the average diameter of the indentation d (mm), calculate the required depth h (mm) according to the average diameter of the indentation d (mm), and then calculate the Brinell hardness HB value according to the formula (1); Or find out the Brinell hardness HB value from the Brinell hardness table according to the average diame...

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Problems solved by technology

[0017] In order to overcome the problems that the above measurement method is easy to introduce human error, low work efficiency, and low reliability, the present invention provides a Brinell hardness measurement system and a method for measuring Brinell hardness indentation using the system. The Brinell hardness measurement system is used to measure Brinell hardness indentation method has accurate measurement results, easy operation, high work efficiency, small human error and high reliability

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