Buchholz indentation hardness tester

Abstract

The invention relates to a Buchholz indentation hardness tester. The technical scheme is that the Buchholz indentation hardness tester comprises a substrate and an indentation wheel. A cantilever beamforce sensor is installed below the substrate. One end of the substrate is fixedly connected with one end of the cantilever beam force sensor. The substrate and the cantilever beam force sensor whichare unconnected are alternately installed. The indentation wheel is positioned on the cantilever beam force sensor away from the fixed connection end of the substrate and the cantilever beam force sensor. The lower end of the indentation wheel is stretched out of the lower end face of the cantilever beam force sensor. The lower part of the fixed connection end of the substrate and the cantileverbeam force sensor is connected with a pin of which the lower end is stretched out of the lower end face of the cantilever beam force sensor. The output end of the cantilever beam force sensor is connected with the input end of a secondary meter. A real-time monitoring structure for the load size of the indentation wheel is formed. The weight of the upper part of the Buchholz indentation hardness tester directly acts on the indentation wheel and is transmitted to the cantilever beam force sensor, so the visual measurement for the load size of the indentation wheel is realized, the secondary meter is used for conveniently monitoring the load, and the requirements of a paint film indentation test are satisfied.

Description

technical field [0001] The invention relates to an indentation hardness tester, in particular to a Buckholz indentation hardness tester with real-time monitoring of the load of an indentation wheel. Background technique [0002] At present, the known Barkholz indentation test is achieved by an indenter with a specific shape and size. And the size of the indenter composition. The metal block has a certain quality. When the entire indenter is placed flat on the sample to be tested, the indenter is pressed down to the surface of the paint film with a fixed load, and the length of the indentation formed on the paint film after a certain period of time is used to characterize the paint. membrane properties. [0003] Defects of the current equipment: The hardness of the two pins is small, which is easy to bend or wear, which leads to the destruction of the level of the upper surface. Since the equipment itself is a rectangular metal block, it forms a center of mass at a certain ...

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Problems solved by technology

[0003] Defects of the current equipment: the hardness of the two pins is small, easy to bend or wear, resulting in the destruction of the level of the upper surface. Since the equipment itself is a rectangular metal block, the centroid of a certain position is formed according to the three supports. If the level is damaged, the The load on the indenter is bound to change, but since there is no real-time display of the load itself, such subtle changes cannot be observed with the naked eye, so the user does not know whether the load has changed, which will cause serious damage to the daily indentation test. error, therefore, its improvement and innovation are imperative

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