Method and device for ice adhesion strength normal force on material surface

Abstract

The invention relates to a method and device for ice adhesion strength normal force on a material surface. The testing method comprises the following steps of: vertically pressing an adhesion probe dipped with a certain amount of water onto the refrigerated surface of a sample to be tested, and waiting till a contact surface is iced and becomes adhesive; and vertically pulling the adhesion probe, measuring the maximum force in a stripping process, and converting the contact area of the adhesion probe to a quantitative parameter representing the normal ice adhesion strength of the sample to be tested. The device comprises a frame / sample fixed station, a refrigerating temperature control unit, an adhesion probe, a probe pushing and pulling mechanism, a force transducer, an adhesion probe dipping water vessel and the like. A water icing process is taken as an adhesive adhesion process, and the conventional testing errors and environmental interference can be avoided by quantitatively controlling the temperature, the icing water amount and the contact end area of the adhesion probe and applying load. The method and the device have the advantages of simple principle and structure, convenience for operating, high repeatability, and real representation of the normal adhesion strength of material (or coating) surfaces and ice.

Description

technical field [0001] The invention relates to a method and a device for testing the normal force of the ice adhesion strength on the surface of a material. This measurement method and device can be used to evaluate the anti-icing ability of the material (coating) surface, and has reference value for the design of low-temperature components. Background technique [0002] The problem of frosting and icing on the surface is an adhesion phenomenon caused by the presence of moisture or water vapor in a low temperature environment, such as frosting on automobile glass, icing on power transmission equipment; icing on aircraft wings, Problems such as frosting of refrigeration facilities and air conditioners. Reasonably and quickly evaluating the ice adhesion characteristics of materials (or coatings) and different surface morphology and analyzing the adhesion laws of materials (coatings) and surface morphology are the basis for developing antifreeze adhesion technology in the eng...

AI Technical Summary

Problems solved by technology

The main problems of the above methods and devices for testing ice adhesion strength are: (1) the test device is too complicated, and too many additional devices need to be equipped; (2) the repeatability of the test is not good, and the test results cannot be quantified, etc.

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