Atmospheric environment comprehensive natural acceleration test system

Abstract

The invention discloses an atmospheric environment comprehensive natural acceleration test system. The system comprises a test box (115), wherein the test box (115) comprises a box body (301) and a cover plate (302) hinged on the box body; and the test box (115) is arranged on a sun tracking system used for tracking sun trajectory. The system can simultaneously reinforce environmental effects of corrosive media, humidity, temperature and illumination on materials; the system adopts intellectualized spraying control and can better control dry-wet circulation on the surface of a sample inside the test box; and the system makes spay uninfluenced by wind and rain in external environment, thereby solving the problems of uneven spray and influence of the uneven spray on surrounding environment and making detection data more uniform and reliable. A spraying system automatically controls to spray according to a wetness sensor on the surface of the sample, which solves the problems of lack spraying and excessive spraying, and makes the spay controlled on a thin liquid film area most quickly corroded so as to improve acceleration multiplying factor.

Description

technical field [0001] The invention relates to a test system for atmospheric corrosion or environmental adaptability measurement, which is used for comprehensive natural acceleration test of atmospheric environment. Background technique [0002] At present, when conducting natural environment tests, an open test device with periodic spraying is often used. The sample is placed under the spray head, and the time relay is used to control the timed and open spray. Under the action of the wind, the spray solution often deviates from the sample area, resulting in some samples not being sprayed or spraying unevenly, thereby affecting the effect of the accelerated corrosion test and the correctness of the test evaluation results, and at the same time causing adverse effects on the surrounding test environment. influences. The use of time relays to control timing spraying has caused two other adverse consequences: one is to form a thick water film on the surface of the sample, an...

AI Technical Summary

Problems solved by technology

Under the action of the wind, the spray solution often deviates from the sample area, resulting in some samples not being sprayed or spraying unevenly, thereby affecting the effect of the accelerated corrosion test and the correctness of the test evaluation results, and at the same time causing adverse effects on the surrounding test environment. influences

The use of time relays to control timing spraying has caused two other adverse consequences: one is to form a thick water film on the surface of the sample, and the maximum atmospheric corrosion rate of metals occurs in the thin liquid film area, which reduces the effect of accelerated corrosion; The second is to use fixed time interval spraying regardless of sunny or rainy days, resulting in over-spraying or under-spraying, which also reduces the effect of accelerated corrosion tests

In addition, when the temperature is lower than 0°C, the spray liquid freezes and blocks the pipeline, making it impossible to spray, which limits its applicable geographical range

Moreover, the existing test device is only exposed to the sun, and does not consider the change of the sun's trajectory during the day, which prolongs the test period. At the same time, there is no remote monitoring system, which is inconvenient for data collection.

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