Metallic material abysmal sea couple electric current multichannel test device

A technology of galvanic current and metal materials, which is applied in the direction of measuring devices, analysis materials, instruments, etc., can solve the problems that the galvanic corrosion rate cannot be obtained directly, and the polarization characteristics of metals are not reflected, and achieves convenient operation, simple and compact structure, Easy deployment and retrieval operations

Inactive Publication Date: 2009-06-10
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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Problems solved by technology

Potential measurement results do not reflect the polarization characteristics of the metal, so the galvanic corrosion rate cannot be directly obtained

Method used

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  • Metallic material abysmal sea couple electric current multichannel test device

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Embodiment

[0012] The main structure of this embodiment mainly includes a galvanic couple sample 1, a sensitive resistor mounting plate 2, a sensitive resistor 3, a data collector expansion board 4, a battery pack 5, a reference electrode 6, an operational amplifier mounting plate 7, and a pressure-resistant housing 8. Data collector 9, galvanic couple sample installation frame 10, multi-core cable withstand voltage connector 11, operational amplifier 12 and data communication interface 13; galvanic couple sample 1 is connected to the operational amplifier and sensitive resistor mounting plate 7 through cables and 2, the reference electrode 6 is connected to the operational amplifier installation board 7, and the two installation boards 7 and 2 of the operational amplifier and the sensitive resistor are respectively connected to different ports of the data acquisition expansion board 4, and the data acquisition expansion board 4 and the The data collector 9 is connected to the correspondi...

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Abstract

The invention relates to a metal material blue sea couple current multichannel testing device, which belongs to the field of corrosive couple current situ automatic testing of metal materials in abyssal environment, wherein a couple sample is connected to mounting plates of an operational amplifier and a sensitive resistance, an reference electrode is connected to the mounting plates of the operational amplifier, two mounting plates of the operational amplifier and the sensitive resistance are respectively connected to two different ports of an expander board of a data acquisition unit, which is connected with corresponding port of the data acquisition unit. The operational amplifier, the sensitive resistance mounting plate, the operational amplifier mounting plate, the data acquisition unit mounting plate, the data acquisition unit expander board, the data acquisition unit and a data acquisition unit are mounted in a pressure hull, connected with an external couple sample and the reference electrode through a cable and a multicore cable. The device has the advantages of simple and compact complete machine structure, simple operation of laying and recovery, safe and reliable using performance, long service life.

Description

Technical field: [0001] The invention belongs to the technical field of galvanic current in-situ automatic testing of metal materials corroded in deep-sea environments, and relates to a multi-channel testing device for deep-sea galvanic currents of metal materials. Background technique: [0002] Some countries in the world started research on the corrosion test of materials in deep sea environments as early as the 1960s. The United States conducted a number of corrosion tests on deep-sea materials in the Pacific Ocean between 1962 and 1970. The materials involved were 475 alloys and 20,000 samples, including various steels, copper alloys, nickel alloys, stainless steel, aluminum alloys, and titanium. Alloys, rare metal alloys, various metal ropes, and various marine polymer materials, plastics, rubber, organic composite materials, etc. The exposure depth is 780-2000m, and the exposure time is 125-1064 days. The test contents include general corrosion, stress corrosion, wel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/02
Inventor 侯健郭为民
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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