When seeing to talk about filter material recently, always mention ceramic ring, also have a few friends to talk about glass ring, may be everybody thinks these two are same kind of thing, just call method is different just. And through seeing two kinds of "annulus" tell everybody, actually, vitreous annulus and ceramic annulus are different actually, their difference is very big still. After everybody saw the following text everybody USES glass ring as far as possible, the price is about the same, but the effect is not little.
The glass ring is called precision ceramics in industry. The main components are alumina (Al2O3), followed by zirconia (ZrO2), magnesium oxide (MgO), beryllium oxide (BeO), thorium oxide (ThO2), uranium oxide (UO3) and so on. Their sintering performance is good, wide range of USES, the following is a reference to professional information in a passage "in less than 400 nm wavelength light irradiation, the valence band electron is emitted to the conduction band, formed the electrons and holes, and adsorption on the surface of O2 and H2O, generate superoxide anion free radicals, O2 and hydroxyl radicals OH, its free radicals have strong ability of oxidation decomposition can destroy organic matter in the chain of C - C, C - H, C - N and C - health, O - H, O, N - H healthy and kill bacteria, has the great effect on the air purification and water treatment, and with functions of deodorant, adsorption, filtration".
The quality of precision ceramics depends on the control of powder and sintering degree. From the naked eye, the texture is fine and smooth, the surface is smooth and shiny, and the color of milk white is superior. The hexagonal one on the market is much better than the round one.
Compared with the ceramic ring, the ceramic ring is durable, but the glass ring is easier to culture and digest bacteria, but the glass ring should be better (grade A), the PH of the glass ring is lower than the ceramic ring, the PH of the glass ring is between 7.0-7.5, and the ceramic ring is between 7.5-8.0.