Brinell hardness circular groove indentation diameter measuring device
A technology of diameter measurement and Brinell hardness, which is applied in the field of Brinell hardness circular groove indentation diameter measurement device, which can solve the problems of reducing the authenticity of multiple sets of data, missing or multiple measurements of indentation circular grooves, and metal sample movement. , to achieve the effect of improving authenticity, avoiding missing or over-testing, and reducing measurement errors
Inactive Publication Date: 2020-05-22
林丽洁
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[0003] However, since the Brinell hardness value is calculated by the indentation diameter, the accuracy of the indentation diameter measurement is an important factor affecting the accuracy of the Brinell hardness measurement, but the traditional indentation diameter measurement method is to place the metal sample block on the platform Then place the reading microscope on the top of the indentation circular groove for measurement. During the measurement process, the metal sample block and the reading microscope are easily moved by external forces, which increase
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] The embodiment of this Brinell hardness circular groove indentation diameter measuring device is as follows:
[0019] see Figure 1-5 , a Brinell hardness circular groove indentation diameter measuring device, comprising a frame body 1, the inner wall of the frame body 1 is provided with a guide rail groove 2 inwardly, and an interlayer with a magnet is arranged in the bottom of the frame body 1, so that it can be put into the frame body The metal temp...
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The invention provides a Brinell hardness circular groove indentation diameter measuring device, and relates to the technical field of metal hardness measuring instruments. The Brinell hardness circular groove indentation diameter measuring device comprises a frame body, and is characterized in that a guide rail groove is inwards formed in the inner wall of the frame body; the interior of the guide rail groove is slidably connected with a connecting rod through a roller, the connecting rod is slidably connected with a positioning device, the upper portion of the positioning device is sleeved with an observation and measurement device, the two sides of the frame body are fixedly connected with fixing devices, a metal sample plate is fixedly placed between the fixing devices, and an indentation groove is formed in the metal sample plate in an extruded mode. According to the invention, the measuring device can still measure the diameter of the indentation in a complex environment, the practicability is improved, the precision during measurement is improved, the indentation circular groove can be singly positioned and aligned before measurement, missing measurement or excessive measurement of the indentation circular groove is avoided, and the authenticity of multiple groups of data is improved.
Description
technical field [0001] The invention relates to the technical field of metal hardness measuring instruments, in particular to a Brinell hardness circular groove indentation diameter measuring device. Background technique [0002] The principle of Brinell hardness measurement is to use a certain test force to press a quenched steel ball or a hard alloy ball with a diameter of D into the surface of the metal to be tested, keep the test force for a specified time, and use a reading microscope to measure the pressure. The average diameter of the indentation is d, and then the Brinell hardness HB value is obtained according to the formula. Because the indentation left on the surface of the metal material is relatively large, the measured hardness value is relatively accurate, and is widely used in cast iron, non-ferrous alloys and various In the hardness measurement of annealed and quenched and tempered steel. [0003] However, since the Brinell hardness value is calculated by t...
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Login to view more IPC IPC(8): G01N3/06G01N3/42G01B5/08
CPCG01B5/08G01N3/062G01N3/42G01N2203/0019G01N2203/0078G01N2203/0098G01N2203/0682
Inventor 林丽洁
Owner 林丽洁
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