Dual cantilever adhesion sample thickness controller

A double cantilever and controller technology, applied in the preparation of test samples, etc., can solve problems such as deviation from the true value, affect the original bonding performance of the interface, and interface fracture, and achieve the effect of reducing self-weight and precisely controlling the thickness of the adhesive

Inactive Publication Date: 2015-08-12
NANJING UNIV OF SCI & TECH
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Problems solved by technology

This method is effective when the particles are roughly evenly distributed in the bonding area, but the added particles will affect the original bonding properties of the interface, causing the measured interface fracture energy to deviate from the true value

Method used

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  • Dual cantilever adhesion sample thickness controller

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Embodiment

[0018] A double cantilever bonded sample thickness controller, comprising a base 1, a guide rod 2, a moving block 3, a handle 4, a lower support block 5, an upper support block 6, one end of the guide rod 2 is fixed with the base 1, and the other end Through the moving block 3, the moving block 3 is provided with a handle 4 that drives the moving block 3 to move along the guide rod 2. The upper end surface of the moving block 4 is provided with a lower support block 5, and the lower end surface of the base 1 is connected with the lower support block 5. The corresponding position is provided with an upper supporting block 6; the guide rod 2 and the moving block 3 are matched by a rack and pinion structure; In the groove, and slidingly fit with the groove; the lower support block 5 and the upper support block 6 are composed of two separate support blocks.

[0019] Its use in the process of making double cantilever bonded samples is as follows:

[0020] (1) Make double cantileve...

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Abstract

The present invention discloses a dual cantilever adhesion sample thickness controller, which comprises a base, a guide rod, a moving block, a handle, a lower support block and an upper support block, wherein the base is fixed on one end of the guide rod, the other end penetrates through the moving block, the moving block is provided with the handle for driving the moving block to move along the guide rod, the upper end surface of the moving block is provided with the low support block, and the position on the base lower end surface and corresponding to the lower support block is provided with the upper support block. According to the present invention, the gear rack is used to drive the moving block to move up and down and has the fixed transmission ratio, such that the moving distance of the moving block can be accurately controlled so as to accurately control the adhesive thickness; and the two or more than two separate support blocks are used to form the controller, such that the self-weight can be reduced, the multi-point pre-tightening can be achieved along the sample length direction, and the thickness uniformity of the adhesive in the whole adhesion region can be controlled.

Description

technical field [0001] The invention belongs to the technical field of mechanical experiment sample production, in particular to a double cantilever bonded sample thickness controller. Background technique [0002] Among the many specimens for testing the fracture energy of the bonding interface, the double cantilever beam specimen can not only use the beam theory to simplify the data processing, but also ensure stable crack propagation, thereby avoiding false effects in the determination of the fracture energy. Therefore, the double cantilever Beam specimens are especially suitable for testing flexible components incorporating soft materials. According to the research, the thickness of the adhesive has a great influence on the bonding performance of the interface and the fracture behavior of the interface during the failure process. However, it is difficult to control the thickness of the adhesive layer (or interface layer) in the process of sample production. To achieve g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
Inventor 周清春许进升陈雄郑健周长省
Owner NANJING UNIV OF SCI & TECH
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