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Method and apparatus for testing metal material deep-sea corrosion potential

A metal material, deep sea corrosion technology, applied in measurement devices, analytical materials, weather resistance/light resistance/corrosion resistance, etc., to achieve the effect of saving test costs, simple and compact structure, and easy deployment and recycling operations.

Inactive Publication Date: 2007-11-21
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
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Problems solved by technology

At present, deep-sea environment corrosion test and research have not been carried out in China, and the society has an increasingly urgent demand for deep-sea corrosion data of materials. Coupled with the rapid progress of modern electronic technology and computer technology, the in-situ test technology of deep-sea environment corrosion potential will be the most important for metal materials. Provide strong technical support for deep-sea corrosion mechanism research and deep-sea cathodic protection research

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  • Method and apparatus for testing metal material deep-sea corrosion potential

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Embodiment Construction

[0019] The main structure of the equipment device implemented in the present invention is composed of a data memory 1, a master controller 2, a potential measurement meter 3, a converter 4, a reference electrode 5, a sample to be tested 6, a battery 7, a pressure-resistant housing 8 and a voltage-resistant multimeter. The core wires 9 are electrically connected and assembled to form a single-body sealing system for automatic testing.

[0020] The instrument device of the present invention is manufactured in separate parts, sealed and assembled in a laboratory before the test, and then put into the sea for a real test after the test.

[0021] The potential measuring table of the implementing instrument of the present invention is completed by a conventional circuit, and is fixed in the pressure-resistant casing 8 after testing that various functions meet the requirements. Due to the low power consumption and low heat generation of the measurement circuit, the temperature in the...

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Abstract

A potential testing method of deep-sea corrosion on metal material includes preparing test device to be a unified and sealed structure, setting test device in deep-sea of selected sea area, realizing automatic measurement and automatic conversion as well as automatic storage by utilizing battery carried by itself and control of monolithic computer, using interface to guide data into computer to carry out analysis and treatment to obtain test result after recovery, enabling to carry 30-50 metal test-pieces on one test device and laying test device in deep-sea of 100-3000 metres for 1-6 months.

Description

Technical field: [0001] The invention belongs to the field of automatic test devices for corrosion potential of metal materials in marine environments, and relates to a test method and device for deep-sea corrosion potential of metal materials. Background technique: [0002] According to literature reports, the United States (Hueneme Port Test Station, Ocean Tongue Test Station), the former Soviet Union, Japan (Kitakyushu Test Site, Beppu Test Site), the Netherlands (Helder Test Station), etc. began to develop materials in the 1960s. In recent years, countries such as Norway and India have also carried out research work in this area on corrosion tests in deep sea environments. The United States conducted large-scale deep-sea environmental material performance tests from 1961 to 1970, but the test content was only deep-sea exposure tests of various materials, and the test content included weight loss, stress sensitivity, corrosion morphology observation, and loss of mechanica...

Claims

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Application Information

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IPC IPC(8): G01N17/02G01N27/416
Inventor 郭为民邓春龙李文军
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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