Accelerated testing apparatus for simulation of corrosion by industrially polluted atmosphere

Abstract

The invention relates to a simulation technology of atmosphere corrosion on material and anticorrosion paint, and especially provides an accelerated testing apparatus for the simulation of the corrosion by industrially polluted atmosphere. The apparatus is provided with a reaction box, a box cover, an air inlet and outlet pipe, and a humiture monitoring probe. Besides, an inner chamber of the reaction box is divided into an upper layer chamber and a lower layer chamber, and the upper layer chamber is a corroding chamber and the lower layer chamber is an atmosphere generating chamber; the box cover is movably arranged on the top of the reaction box, and the air inlet and outlet pipe and the humiture monitoring probe are inserted into the box cover; and the air inlet and outlet pipe is inserted into the sidewall of the reaction box which has the atmosphere generating chamber. The apparatus has two methods of generating corrosive atmosphere: the chemical method and the external connection of gas source method, and a problem of relying on the single external connection of gas source to generate the corrosive atmosphere is solved. Simulation of the corrosion by polluted atmosphere especially by heavy-industry polluted atmosphere with the invention could be used for researching and evaluating the corrosion action of metal material and the anticorrosion paint in the heavy-industry polluted atmosphere, so as to provide evidence for reasonably choosing the material and choosing the appropriate protection method.

Description

technical field [0001] The invention relates to atmospheric corrosion simulation technology of materials and anti-corrosion coatings, and in particular provides an accelerated test device for simulating industrial pollution atmospheric corrosion. Background technique [0002] Atmospheric corrosion is the result of the interaction of a material, including metals and nonmetals, with its surrounding atmospheric environment. According to statistics, the loss caused by atmospheric corrosion accounts for half of all corrosion. Studies have shown that, of all atmospheric environments, humid, heavily polluted industrial atmospheres are the most corrosive. [0003] At present, the industrial polluting gas corrosion test chamber is composed of several parts such as a test chamber body, a heating control system, an external gas cylinder, and a temperature and humidity control device. Accelerated corrosion of materials in a certain temperature and humidity environment, to reproduce th...

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Problems solved by technology

[0004] In order to overcome the shortcomings of the existing industrial polluting gas corrosion test chamber, the present invention designs an accelerated test device for simulating atmospheric corrosion. The device is not only small in size and easy to move, but also has two ways to generate corrosive atmosphere , chemical method and external gas source method, solve the problem of corrosive atmosphere relying on a single external gas source

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