Liquid-film-thickness-controllable thin liquid film corrosion electrochemical testing device and method

A liquid film thickness, electrochemical technology, applied in measuring devices, weather resistance/light resistance/corrosion resistance, scientific instruments, etc., can solve the problems of lack of accurate and effective control devices and methods, limitations of electrochemical testing of thin liquid film corrosion, etc.

Active Publication Date: 2016-09-21
UNIV OF SCI & TECH BEIJING
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  • Claims
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Problems solved by technology

[0003] In the traditional corrosion electrochemical test method, the thickness of the thin liquid film formed on the surface of the metal material is usually measured, but there is no device and method for accurately and effectively controlling the thickness of a specific thin liquid film. Testing is somewhat limited

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  • Liquid-film-thickness-controllable thin liquid film corrosion electrochemical testing device and method

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Embodiment Construction

[0016] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0017] The invention provides a thin liquid film corrosion electrochemical test device and method with controllable liquid film thickness.

[0018] Such as figure 1 As shown, the device includes fine adjustment knob 1, support frame 2, electrode probe one 3, electrode probe two 4, ammeter 5, water bath 6, stage 7, fine adjustment lifting column 8, aqueous solution 9, annular platinum Electrode wire 10, coarse adjustment knob 11, lifting controller 12, liquid level controller 13, coarse adjustment lifting column 14, transparent observation cover 15, temperature probe 16, air vent 17, experimental container 18, level adjustment bolt 19; sample Fixture 20; electrochemical sample lead 21; solid reference electrode lead 22; screw 23; 24-ring platinum electro...

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Abstract

The invention provides a liquid-film-thickness-controllable thin liquid film corrosion electrochemical testing device and method, and belongs to the technical field of electrochemical testing and humidity corrosion simulation experiments including atmospheric corrosion. The device consists of parts such as an ascending and descending controller, an ascending and descending post, an object carrying table, an ampere meter, an electrode probe, a liquid level controller, an experimental container, a specimen table, a specimen fixture, a temperature probe, a water bath kettle, a gradienter, an electrochemical testing system and horizontal regulation screw blots. By regulating coarse tuning and fine tuning knobs of the ascending and descending controller, the precise control on the liquid level position of a water solution in the experimental container is realized, so that the thin liquid film thickness set within 1000mum is obtained. Meanwhile, the water bath boiler is used for performing constant temperature control on electrochemical specimens and the solution in the experimental container. The thin liquid film which has the set thickness and is obtained by the device is combined with the external electrochemical testing system for performing corrosion electrochemical testing under the set liquid film thickness condition.

Description

technical field [0001] The invention relates to the technical field of thin liquid film corrosion simulation experiment and electrochemical test including atmospheric corrosion, in particular to a thin liquid film corrosion electrochemical test device and method with controllable liquid film thickness. Background technique [0002] The thin liquid film on the surface of metal materials will cause thin liquid film electrochemical corrosion of metal materials. Thin liquid film electrochemical corrosion is one of the most common corrosion phenomena in natural and industrial environments. Atmospheric corrosion is a typical thin liquid film. film corrosion. The temperature difference between the metal material in the humid environment and the environment will cause the moisture in the moisture to condense on the surface of the metal material to form a thin liquid film with a certain thickness. When the thickness of the thin liquid film reaches more than dozens of water molecule l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/02
CPCG01N17/02
Inventor 李晓刚柳伟齐小龙
Owner UNIV OF SCI & TECH BEIJING
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