EDX analysis of the adjacent layer with the refractories shows that it is mainly composed of magnetite ore, and also contains a small amount of dissolved quicklime; the content of chromium and magnesium in the adjacent layer is the lowest, indicating the solubility of the refractory in the calcium ferrite slag Very low. At the same temperature and contact time, this refractory material is less susceptible to erosion by calcium ferrite slag than iron silicate slag. Most of the magnesia-based refractories are easily infiltrated by slag, a problem that is unique to such refractories. However, there is one exception. Refractory microstructure. This is a low porosity calcium silicate bonded magnesia refractories. The infiltration of slag into this material is very small, mainly due to the formation of a layer of solid magnesium ferrite that acts as a barrier. The FeZ in this phase suppresses the CL emission and thus forms a dark zone in which the unetched magnesium oxide particles on the right and the other slag-based refractory bricks of the coagulation slag on the left also form a magnesium square iron layer upon contact with the slag. However, the resistance to penetration is shown to be much lower; the low porosity of the refractory may be responsible for the different results. This corrosion resistance has its potential significance, mainly because it can prevent the copper oxide from invading the refractory material, thereby minimizing the spalling impact on the refractories of most copper smelting furnaces. However, the thermal shock of refractory materials with low porosity is a considerable concern. Adding a certain amount of spinel particles as the binder phase to the refractory material V will make the brick more resistant to permeation: however, the brick is easily infiltrated, so that the iron ions in the slag gradually replace the original particles. Magnesium, followed by poisoning, darkens the particles in the CL microstructure. Black Lamp,T8 Blb Light,T8 Blb Bulb,T8 Blb Tube Changxing leboom lighting product CO.Ltd. , https://www.leboomuvs.com