Ozone aging test chamber expert classroom: the principle of ozone generation

The ozone aging test box is suitable for the aging crack test of non-metallic materials and rubber products. In the test, the concentration control of ozone is very important, that is, the amount of ozone generated is more important. Let us make a detailed explanation on the principle of ozone generation.

According to the principle, the ozone generator of the ozone aging test chamber can be divided into: corona discharge type, electrolytic type, ultraviolet irradiation type, nuclear radiation type (the most widely used is the corona discharge type electric ozone generator. It is composed of an ozone tube , Ozone power supply, gas source device and electric control device).

Under ultraviolet radiation, ozone is formed naturally from diatomic oxygen by electron emission or exposure. In industry, use dry air or oxygen, adopt 5 ~ 25kv AC voltage for silent discharge. In addition, ozone can be produced by electrolyzing dilute sulfuric acid at low temperature or heating liquid oxygen. Because of the instability of ozone, general ozone is made on site. The commonly used method of ozone is electrolysis, which electrolyzes water into oxygen, and then free oxygen in it becomes ozone.

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