Ordinary mullite porcelain is made of aluminosilicate natural minerals as a main raw material, and is formed by a reaction sintering method in which a eucalyptus is synthesized in a sintering process or a mullite is first synthesized and then sintered. Due to the low purity of raw materials and high impurity content, in addition to Al2O3 and SiO2, the components also contain impurities such as TiO2, Fe2O3, CaO, MgO, Na2O, K2O, etc., so that there are a considerable amount of glass phase in the product, resulting in mechanical and thermal properties. Poor, the excellent performance of mullite ceramics at high temperatures cannot be fully utilized. Therefore, ordinary mullite ceramics in the industry can only be used as a general refractory material in the case where the temperature and high temperature strength are not high. Mullite Ceramic,Mullite Ceramic Plate,Mullite Honeycomb Ceramic,Mullite Cordierite Honeycomb Ceramic Dongguan Haikun New Material Co., Ltd. , https://www.hkceram.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Sliding bearing fault characteristics Detailed description of the characteristics of sliding bearings
1) Bearing burnt tile: There are many large-scale alloy abrasive grains and black metal oxides in the iron spectrum. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
2) Fretting wear on the tile back: Spectral analysis found that the iron concentration is abnormal; there are many iron component submicron wear particles in the iron spectrum; the moisture and acid value of the lubricating oil are abnormal.
3) Wafer surface shedding: There are many large-scale fatigue-shedding alloy wear particles and layered abrasive grains found in the iron spectrum.
4) Journal external corrosion: Spectral analysis found that the concentration of iron is abnormal; there are many sub-micron particles of iron in the iron spectrum; excessive moisture or acid value overrun of lubricating oil.
5) Corrugated surface corrosion: Spectral analysis found that the concentration of non-ferrous metal elements was abnormal, and the sub-micron-scale wear particles of many non-ferrous metal components were present in the iron spectrum. The lubricating oil exceeded the water and the acid value exceeded.
6) Spine external strain: iron-based cutting abrasive black oxide particles in the iron spectrum; tempering color on the metal surface.
7) Bearing external strain: cutting abrasive grains are found in the iron spectrum; the abrasive grain composition is non-ferrous metal.
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Detailed description of the characteristics of sliding bearings
Source: China Bearing Network Time: 2017-12-19