Bonding material shearing strength testing tool and bonding material shearing strength tester

Abstract

The invention provides a bonding material shearing strength testing tool and a bonding material shearing strength tester. The bonding material shearing strength testing tool comprises: a base, a plurality of detection blocks and a plurality of pressing blocks, wherein the detection blocks are arranged in parallel and are arranged in the base; each detection block comprises a first structure body and a second structure body, which are adhered, and a bonding surface is arranged between the first structure body and the second structure body; the distribution of the pressing blocks is consistent to the distribution of the detection blocks; the pressing blocks are used for acting on the second structure bodies; the plurality of pressing blocks are distributed in a ladder shape and each pressingblock is cut in sequence; therefore, the pressing block with the greatest height is used for applying a shearing force on the corresponding detection block at first, and the second structure body iscut off from the corresponding first structure body; then other pressing blocks are cut in sequence according to the height sequence of the pressing blocks; the plurality of detection blocks can be detected in one step and the efficiency is relatively high.

Description

technical field [0001] The invention relates to the technical field of shear strength testing, in particular to a tool for testing adhesive shear strength and an adhesive shear strength tester. Background technique [0002] Carbon skateboard is an important part of electric locomotive, EMU, light rail and subway. It is installed on the pantograph and directly contacts with the catenary wire. It belongs to the category of sliding contact contact material. Supply electricity. Therefore, the pantograph slide plate and the catenary wire constitute a pair of special friction pairs that are mechanically and electrically coupled, and their working conditions have the following characteristics: (1) periodically and randomly changing load; (2) strong current passing through contact; ( 3) high-speed sliding; (4) complex and changeable environmental conditions. The main failure mode of the skateboard is the wear to the limit, and for the carbon skateboard, it may also have to be repl...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of low shear test efficiency in the prior art, so as to provide an adhesive shear strength test tool and adhesive shear strength tester with high test efficiency

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