Dry-wet cycling ultraviolet irradiation automatic corrosion test chamber and test method

Abstract

The invention discloses a dry-wet cycling ultraviolet irradiation automatic corrosion test chamber and test method for simulating degradation of organic material in a tide zone in a marine environment. A parallel ultraviolet source system, an adjustable type sample hanging frame and a temperature detection system are arranged in a chamber body, an electric lifting device is arranged just at the center of the top surface outside the chamber body, the adjustable type sample hanging frame is connected just to the downside of the electric lifting device in a rigid manner, and a corrosion sample is mounted on the adjustable type sample hanging frame; a ventilation cooling system and a master control system are also arranged on the top surface of the chamber body; the adjustable type sample hanging frame is composed of adjustable bolts and two identical sample racks; each sample rack comprises an adjustable sample hanging frame support rod, a sample pedestal and a transverse support rod, and the corrosion sample is mounted on the sample pedestal; the dry-wet cycling period, an ultraviolet source, a temperature probe and the ventilation cooling system are controlled by the master control system through coordinated control, and the electric lifting device automatically ascends and descends at fixed time, thus, the degree of automation is high, and the reliability of test results is improved.

Description

technical field [0001] The invention relates to a corrosion test device and method, in particular to a test box and a test method for simulating the degradation of organic materials in a tidal zone in a marine environment, which are widely used in the evaluation of the protective performance of organic coatings and the life evaluation of other organic materials. Background technique [0002] The marine environment has the characteristics of high humidity, high temperature, high concentration of corrosive media, strong ultraviolet radiation, etc., and various environmental conditions change frequently, so various materials corrode and deteriorate quickly, especially the degradation and failure of organic materials in the marine environment is particularly rapid. Organic materials located in the tidal zone of the ocean rapidly fail under the dual effects of alternating dryness and wetness and strong ultraviolet light irradiation. Therefore, it is of great significance to grasp ...

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Problems solved by technology

[0003] In order to solve the problems of long on-site corrosion test period in the tidal zone, difficulty in collecting corrosion results and data, and the existing simulation test device cannot accurately control relevant parameters and consume a lot of manpower, the present invention proposes a combination of dry and wet alternating and ultraviolet light irradiation. Automatic corrosion test chamber and test method, realize precise automatic control of relevant corrosion parameters such as ultraviolet light source, temperature, dry and wet cycle through programmable controller

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