在线免费观看av一区二区_中文字幕忍不住勃起_亚洲成AV人片天堂网站_三级电影爱情黄色A级_中国久草二区手机视频在线观看_国产人成亚洲第一网站在线播放_一本大道香蕉青青草原_日韩精品熟女少妇中文字幕

What is fired magnesia brick?
Time:2023-04-03 11:19
  |  
Hits:1965

Burnt magnesium brick refers to an alkaline refractory product that is fired from periclase as the main raw material. Fired magnesia bricks have a high load softening temperature and strong resistance to alkaline slag erosion, but poor seismic resistance and weak resistance to acid slag erosion. Burned magnesia bricks are mainly used for the walls and bottoms of basic open hearth and electric furnaces for steelmaking, as well as for the permanent lining of oxygen converters, iron mixers, nonferrous smelting furnaces, and high-temperature tunnel kilns; The lining of rotary kilns for calcining magnesia and cement, the upper lattice bricks of glass furnaces, and the bottom and end of soaking pits and heating furnaces for rolling steel.