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A device and method for testing the corrosion fatigue performance of non-metallic coatings

A non-metallic coating, corrosion fatigue technology, used in measuring devices, testing wear resistance, weather resistance/light resistance/corrosion resistance, etc., can solve the problem of lack of real-time leak detection devices and methods for coatings

Inactive Publication Date: 2019-02-12
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] (B) Lack of devices and methods for real-time leak detection and monitoring of coatings and determination of critical fatigue life of coatings, as well as devices for online observation and recording of coating surface morphology changes

Method used

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  • A device and method for testing the corrosion fatigue performance of non-metallic coatings
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  • A device and method for testing the corrosion fatigue performance of non-metallic coatings

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Embodiment Construction

[0044] A detailed description will be made in conjunction with the drawings and specific embodiments of the present invention.

[0045] like Figure 1~4 As shown, a test device for corrosion fatigue performance of non-metallic coatings is characterized in that the device includes a test unit, a monitoring unit, a camera observation unit, a heating unit, and an intake and exhaust unit;

[0046] Described test unit is made of tension-compression fatigue testing machine (1), sample (2), environment box (3) and corrosive liquid (4); Described environment box (3) is made up of upper end cover (38), environment Composed of a cylinder (39) and a lower end cover (40), it is in a cylindrical sealed structure and is made of transparent organic glass. The working pressure in the environmental chamber (3) is 0.1MPa, and the working temperature range is 0-80°C; The sample (2) passes through the upper end cover sample jack (28) and the lower end cover sample jack (35) of the environmental ...

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Abstract

The invention discloses a nonmetallic coating corrosion fatigue performance testing device and method and belongs to the technical field of petrochemical engineering corrosion and protection. The device comprises a testing unit, a monitoring unit, a photographing and observing unit, a heating unit and an air feeding and discharging unit which are all connected with an environment box directly. Evaluation and optimization of coating corrosion-resistant fatigue performance can be realized; air is fed into a solution through an air feeding unit, corrosive liquid is heated through the heating unit, the testing unit is started to test fatigue performance of a coating, the monitoring unit is started to monitor the coating, and the photographing and observing unit is started to record and observe surface appearance of the coating; text data are compared finally, and a scanning electron microscope is adopted to observe the surface appearance of the coating to realize evaluation and optimization of the corrosion fatigue performance of the coating.

Description

technical field [0001] The invention belongs to the technical field of petrochemical corrosion and protection, in particular to a device and method for testing the corrosion fatigue performance of non-metallic coatings. Background technique [0002] In the production process of oil and gas fields, due to the dual use of corrosive environment and alternating stress, the fatigue damage of the material surface coating occurs frequently, resulting in material fracture and failure accidents. [0003] At present, coating is one of the main methods and means widely used in various industries to protect metal materials and prevent material corrosion. In the petroleum industry, the main mechanism of coating anti-corrosion is to block corrosive media and other harmful substances from direct contact with the metal substrate, to avoid the diffusion of corrosive media and harmful substances to the interface between the metal and the coating to prevent the progress of the corrosion reacti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/00G01N3/32G01N3/56
CPCG01N3/32G01N3/56G01N17/002G01N2203/0005G01N2203/0017G01N2203/0019G01N2203/0226G01N2203/024
Inventor 曾德智李皓施太和任建刘冰何奇垚喻智明张恩搏董宝军蔡乐乐
Owner SOUTHWEST PETROLEUM UNIV
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