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Periodic soaking accelerated corrosion test system for metal material and metal protective coating and application thereof

An accelerated corrosion test, metal protection technology, applied in the direction of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., can solve the problems of no heating of corrosive medium solution, inaccurate temperature detection system, uneven air heating temperature, etc., to achieve disassembly It has the advantages of convenient maintenance, improved test efficiency and simple structure.

Inactive Publication Date: 2014-09-03
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the existing accelerated corrosion test equipment is cumbersome to operate, the cost is high, and there are many defects such as uneven air heating temperature, imprecise temperature detection system, poor corrosion resistance of the equipment itself, and no heating and temperature measurement system for the corrosive medium solution.
The existence of these problems has led to the accuracy of corrosion evaluation of metals and metal protective coatings.

Method used

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  • Periodic soaking accelerated corrosion test system for metal material and metal protective coating and application thereof
  • Periodic soaking accelerated corrosion test system for metal material and metal protective coating and application thereof
  • Periodic soaking accelerated corrosion test system for metal material and metal protective coating and application thereof

Examples

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Embodiment

[0053] Select two kinds of aluminum alloys 5083 and 6061, 10 parallel samples of each aluminum alloy, sample size: 200mm×100mm×5mm, grind to 2000# step by step with SiC water sandpaper, and then use mechanical polishing until no obvious scratches, and then use After rinsing with deionized water for 10 minutes, dry the remaining droplets on the surface with a hair dryer.

[0054] Put the pretreated sample into the sample holder and put it into the test tank. The corrosion medium solution uses 3.5wt% NaCl solution.

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Abstract

Belonging to the field of metal corrosion and protection, the invention relates to a periodic soaking accelerated corrosion test system for metal materials and metal protective coatings and application thereof. The system is mainly for the accelerated corrosion test of metals and metal protective coatings, significantly improves test efficiency, shortens evaluation cycle of metals and the protective coatings. The system includes a working groove and a liquid storage tank. An axial flow fan, an infrared heating lamp, an infrared heating lamp hanger, a temperature sensor I, a sample, a sample holder and a double float ball liquid level sensor are arranged in the working groove; and a temperature sensor II and a heater are arranged in the liquid storage tank. An electrical control system, a chemical pump, a liquid inlet pipeline, a leakage pipe and a ball valve are arranged outside the working groove and the liquid storage tank. The invention has the advantages of simple structure, low cost, reliable performance and long service life, and can evaluate the corrosion resistance of the metals and the protective coatings in a relatively short period of time, and significantly improve the test efficiency.

Description

technical field [0001] The invention relates to a periodic immersion accelerated corrosion test system and application of metal materials and metal protective coatings. The evaluation cycle belongs to the field of corrosion and protection of metals. Background technique [0002] The application of metal materials is inseparable from our life. In order to correctly evaluate the corrosion resistance of a certain metal, alloy and its metal protective coating, the choice of corrosion test method is a very important issue. It is well known that the evaluation of a certain metal and its protective coating takes a considerable period of time. How to improve efficiency and quickly and accurately evaluate certain metals and metal protective coatings in a short period of time has aroused people's attention. Accelerated corrosion test method is a good choice. [0003] At present, the existing accelerated corrosion test equipment is cumbersome to operate, the cost is high, and there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
Inventor 刘海涛管勇冯兴梅刘欣严川伟
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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