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A test device and test method for vertical bonding strength of ice layer on material surface

A technology combining strength and testing device, applied in the direction of measuring device, analyzing material, using mechanical device, etc., can solve the problems of narrow test application range, long test time, large test error, etc., to overcome the influence of environmental temperature and short test period , the effect of high cooling efficiency

Inactive Publication Date: 2017-04-19
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

Summarizing the test methods and devices for the bonding strength of the material surface ice layer reported above, the main problems are: (1) the equipment is complicated, the test elements are more, and the test error is large; (2) the test time is long and the production cost is high; (3) The scope of test is narrow and the practicability is small

Method used

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  • A test device and test method for vertical bonding strength of ice layer on material surface
  • A test device and test method for vertical bonding strength of ice layer on material surface

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Embodiment Construction

[0027] Such as figure 1 As shown, a testing device for the vertical bonding strength of the ice layer on the surface of a material is mainly composed of an upper cover plate 1, a lower cover plate 2, a fixed adjustment device 3, a positioning connection device 4, a refrigeration unit 5, a tensile connection device 6, and a connection device 7. Stretching device 8, auxiliary backing ring 9, tapered cylinder 10, sample cover 11, sample fixing bolt 12 and support rod 13; characterized in that: the upper cover 1 and the lower cover of the test device 2 is connected and fixed by the fixing and adjusting device 3, the lower cover 2 is fixed by the positioning and connecting device 4, and the refrigeration unit 5 is fixed. The refrigeration unit 5 is provided with the sample 14 to be tested; the tensile connecting device 6 and the connecting device 7 are connected, and the connecting device 7 and The stretching device 8 is connected, the stretching device 8 is connected to the conical ...

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Abstract

The invention discloses a test device and a test method for the vertical bonding strength of an ice layer on a material surface. The method first uses a conical cylinder in the measuring device to prepare an ice layer of equal volume and equal contact area, and then uses a stretching device to lift the The cone-shaped cylinder peels off the ice layer; read the maximum normal force during the peeling process, and the ratio of this value to the contact area between the ice layer and the sample indicates the vertical bonding strength of the ice layer on the surface of the material. The invention has the advantages that it can be used to test the vertical bonding strength of ice layers on various materials, coatings, natural biological surfaces, and special wettability sample surfaces, and provides simple and convenient methods for materials, coating selection and surface modification technology in engineering. Effective evaluation methods and means also provide good representation means for scientific research.

Description

Technical field [0001] The invention relates to a testing device for the strength of the ice layer on the surface of metal materials, coatings, natural biological materials and special wettability surfaces, in particular to a testing device and a testing method for the vertical bonding strength of the ice layer on the material surface. Background technique [0002] In nature, icing is a beautiful natural landscape that can bring visual enjoyment to humans, but it also often causes inconveniences and even disasters to people's daily life and actual projects. For example, in the power system, the bare aluminum wires of high-voltage overhead power transmission will appear ice-coated under certain atmospheric conditions. When the transmission line is seriously icing, disasters such as line tripping, wire galloping, line breakage, transmission tower collapse, insulator flashover, and communication interruption will occur. Icing on different parts of the aircraft surface will cause de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 欧军飞时庆文王法军薛名山
Owner NANCHANG HANGKONG UNIVERSITY
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