An accelerated environmental test chamber

Abstract

The invention discloses an accelerated environment test box, which comprises a box body (1) and a cover plate (2) hinged on the box body, and a mobile spray system is also arranged in the box body (1). The invention makes the spray no longer affected by the wind and rain in the external environment, solves the problems of uneven spray, under-spray, over-spray, and influence on the surrounding environment, and makes the detection data more uniform and reliable.

Description

technical field [0001] The invention relates to a test device for atmospheric corrosion or anticorrosion performance measurement, in particular to an accelerated environment test box. 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, and the maximum atmospheric corrosi...

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

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