polycrystalline fiberPolycrystalline fiber in the construction must be strictly in accordance with the construction technical standards of construction. Because refractory materials like polycrystalline fibers are easily destroyed. Therefore, it should be observed at any time during the completion of construction and the application of polycrystalline fiber. Then, let's understand what needs to be paid attention to in the construction of polycrystalline fiber!

1) After the polycrystalline fiber is pasted for 30min, a layer film with initial strength is formed between the binder and the fiber. The layer film formed during this period is not allowed to break. In other words, after 30min of construction, the fiber cannot be pre-compressed and extruded. Otherwise, after the initial layer film is damaged, the adhesive cannot be replenished, forming a fiber and adhesive layer. After the oven, the fiber is in point contact with the furnace body.

2) The amount of pre-pressure shrinkage is insufficient in the construction process, the local temperature is too high in the use process, and the gap at the joint of the fiber unit increases after a period of time. When the furnace is stopped for maintenance, the shrinkage joint must be blocked with similar fibers to avoid vicious circle, which is more important for the whole fiber furnace structure.

　　polycrystalline fiberIt is a new type of refractory material and has many applications. However, polycrystalline fiber and other refractory materials are light and require more construction for installation. In the intermittent furnace with the operating temperature below 1250C, when the furnace body is of bricklaying structure, before pasting polycrystalline mullite fiber, the pasted surface must be decontaminated, leaving no dust and dirt.

Operation temperature below 1250C batch furnace, the furnace body for the whole fiber structure, in the paste before the polycrystal fiber, with a tool will paste the fiber surface treatment smooth. No shavings or broken fibers are permitted.

For various industrial furnaces with working temperature of 1250 ~ 1380C, when the furnace body is an integral pouring and tamping working face, the surface of the furnace body shall be "brushed" after the template is removed. The monthly spacing is 80~150mm, and the V-shaped channels with an upper width of 3~5mm and a depth of 3~5mm are processed in both vertical and horizontal directions, and mullite fibers are cleanly pasted.

For all kinds of industrial furnaces with working temperature of 1250 ~ 1380C, when the furnace body is bricklaying, the "chisel" treatment is carried out before the fiber is pasted, with 300 ~-400 "gross points" per square meter, and the treated surface is purged with compressed air to form multi-polycrystalline fiber stone.

In addition to the full fiber structure lining, the burner block must also have a boss structure. Otherwise, when sticking fibers, 100mm fibers shall not be stuck around the tile access opening of the burner. Before the construction of industrial furnaces, the average temperature in the furnace must be between 10 and 40. Otherwise, construction is not allowed.

The above introduction ispolycrystalline fiberWhat should be paid attention to during construction? If you need to know more, please feel free to contact us!