Thermal resistance tester for coating and testing method

A tester and paint technology, which is applied in the paint thermal resistance tester and testing field, can solve the problems that the heat transfer coefficient λ measurement is not easy to realize, the measurement device has relatively high precision requirements, and the paint coating thickness d is not easy to determine, etc., to achieve Improve test accuracy, low cost, energy saving effect

Active Publication Date: 2017-08-18
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology

[0003] However, there will be two problems in this way. First, it is not easy to determine the coating thickness d of the coating, and the accuracy of the measuring device is relatively high; The method is to use advanced instruments for measurement, but such instruments are usually relatively expensive, and the burden on general factories is relatively large

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  • Thermal resistance tester for coating and testing method
  • Thermal resistance tester for coating and testing method
  • Thermal resistance tester for coating and testing method

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Embodiment Construction

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments. In these drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

[0038] Such as Figure 1~3 As shown, a paint thermal resistance tester is tested by coating the paint to be tested on a thermally conductive material to form a test piece 4. The tester includes: a main body heating cup for heating the test piece 4 placed on it; Shaped temperature measurement auxiliary device 5, placed above the test piece 4, used to reduce the radiation heat transfer of the test piece 4 and the convective heat transfer with the air; the infrared temperature measuremen...

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Abstract

The invention relates to a thermal resistance tester for a coating and a testing method. A to-be-tested coating is applied to a thermal conducting material, so that a test piece is formed for being tested. The tester comprises a main heating cup used for heating the test piece on the main heating cup, a circular temperature measurement assisting device arranged above the test piece and used for reducing radiation heat exchange and convection heat transfer between the test piece and air; an infrared temperature measurement assembly arranged above the circular temperature measurement assisting device and used for measuring the temperature of the test piece. Compared with the prior art, the thermal resistance of a single layer of the coating is solved according to a formula by measuring the temperatures of different coating thicknesses at the same heat source temperature, and the thermal resistance tester has the advantages of being simple and convenient to operate, low in cost and the like.

Description

technical field [0001] The invention relates to the field of paint testing, in particular to a paint thermal resistance tester and a test method. Background technique [0002] For the low-temperature corrosion that may occur in industrial boilers, we generally use coatings to prevent them. But when choosing a coating, we need to know the thermal resistance of the coating. For the measurement of thermal resistance, the more classical method is to use the equation. [0003] However, there will be two problems in this way. First, it is not easy to determine the coating thickness d of the coating, and the accuracy of the measuring device is relatively high; The method is to use advanced instruments for measurement, but such instruments are usually expensive and burden a general factory. At the same time, it is also necessary to consider whether the coating is thin and whether Fourier's law is applicable. Therefore, there is a need for a simple and convenient method for testi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
Inventor 张立昂涂钊姜未汀郑晓伟
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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