wanhaorefractory

  The material applied to the lining of refractory bricks . Depending on the requirements of use and construction methods, refractory coatings are formulated into paste-like and mud-like forms. The binder used varies depending on the material, such as alkaline coatings phosphate, polyphosphate, magnesium sulfate for the preparation of continuous casting tundish; clay, aluminum dihydrogen phosphate, aluminum chromium phosphate, water glass, etc. For the preparation of high-alumina coatings . In order to improve the spreadability of coatings, additives such as plasticizers are generally added. The coating is mainly used as a protective coating for the lining of various thermal equipment, or for repairing local damage to the lining of bricks. Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace, etc. Article Source: How to improve the s...

  Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace, etc. 1. For a long time to be poured, the top slag of molten steel cools and crusts, causing slagging on the ladle slag line. (1) The cold heading steel process of Shaoguan Steel Plant requires bottom blowing of argon after the calcium treatment, weak blowing for 12-20 minutes. During the weak blowing process, the edge of the slag layer on the surface of the molten steel is basically in a static state. After a long period of temperature loss, the slag temperature continues decrease, the slag layer close to the ladle wall will solidify at the position of the ladle slag line, causing slagging on the ladle wall. (2) The smelting cycle of the converter is shorter than the smelting cycle of the LF refining furnace , the pouring order is inadequate, the smelting speed of the previous...

The production of high-quality continuous casting slabs requires that the content of inclusions in molten steel be controlled within the specified range. In the process of steelmaking-refining-continuous casting, steelmaking and refining are the basis for ensuring the cleanliness of molten steel. Compared with die casting, due to the special conditions of continuous casting, it is more difficult to obtain clean slabs with extremely low inclusion content from clean molten steel after steelmaking and refining. How to ensure the cleanliness of molten steel and obtain clean billets is the clean steel continuous casting technology. The technological measures related to clean steel continuous casting are: (1) Pouring without oxidation protection: The casting time of continuous casting is long, and the area of molten steel exposed to the air is large, which greatly increases the possibility of secondary oxidation of molten steel. The non-oxidative protection pouring technology...