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Simulation apparatus and simulation method of atmosphere corrosion

A technology of atmospheric corrosion and simulation devices, applied in the fields of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc.

Inactive Publication Date: 2017-02-22
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing atmospheric corrosion acceleration test methods include salt spray test, electrolytic corrosion test, wet heat corrosion test, sulfur dioxide gas corrosion test, hydrogen sulfide gas corrosion test, paste mud corrosion test, etc., but these experimental methods cannot truly reflect the material in the atmosphere Three states in the environment: submerged, wet, and dry

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  • Simulation apparatus and simulation method of atmosphere corrosion

Examples

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Embodiment 1

[0041]In this embodiment, the corrosive medium solution was selected from sodium chloride solution, which was passed into the above-mentioned simulation experiment device, and the temperature of the industrial pure aluminum 1035 to be tested was adjusted by controlling the water inlet one, the water outlet one and the water outlet two. state.

[0042] The specific method is: the medium used is 0.6M NaCl+0.15M Na 2 SO 4 The solution comes from a simulated marine-industrial atmospheric environment with high temperature and high humidity, and the solution temperature is kept at 35°C. In the submerged state, the air temperature in the upper cavity is 35°C, and each cycle is 30 minutes; in the wet state, the air temperature in the upper cavity is still 35°C, and the temperature of the lower solution is 37°C. At this time, the relative humidity of the environment where the sample is located Reach 95%-100%, 150 minutes per cycle; in the dry state, the temperature in the upper cavit...

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Abstract

The invention discloses a simulation apparatus and simulation method of atmosphere corrosion. The apparatus comprises a cavity, an aqueous solution constant-temperature control unit, a temperature control unit and a humidity control unit, the cavity is provided with a sealing cover body, a test assembly is arranged in the cavity, the test assembly comprises a test rack, a separator plate 1 and a separator plate 2, the test rack is arranged on the separator plate 1, a material to be tested is arranged on the test rack, a water level in the cavity above the separator plate 1 is an immersion zone, a water level in the cavity between the separator plate 1 and the separator plate 2 is a moistening zone, a water level in the cavity under the separator plate 1 is a drying zone, the wall of the cavity in the drying zone is respectively provided with a water inlet 1 and a water outlet 1, the inner wall of the moistening zone is provided with a water outlet 2, the corrosion medium of a material to be tested enters the cavity from the water inlet 1, and the immersion state, the moistening state and the drying state of the material to be tested can be simulated by controlling the height of the liquid level. The drying and wetting alternation circulation process of the material in natural atmosphere environment is completely reproduced by combining the apparatus and the simulation method.

Description

technical field [0001] The invention relates to the technical field of corrosion simulation experiments, in particular to a simulation device and simulation method for atmospheric corrosion. Background technique [0002] In order to study the corrosion of materials in the atmospheric environment, the laboratory uses an atmospheric acceleration simulation device to study the corrosion and corrosion behavior and mechanism under the action of specific atmospheric environmental factors. Existing atmospheric corrosion accelerated test methods include salt spray test, electrolytic corrosion test, wet heat corrosion test, sulfur dioxide gas corrosion test, hydrogen sulfide gas corrosion test, paste corrosion test, etc. Three states in the environment: submerged, wet, and dry. Contents of the invention [0003] One of the technical problems to be solved by the present invention is to provide a simulation device for atmospheric corrosion, which can realize three states of immersio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 孙霜青胡松青李春玲王秀民孙阳超徐建昌刘晓龙
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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