Refractory News

Improvement measures of extending the service life of steel taps of converter

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1.The life of the skateboard is relatively low. At present, the material of the domestic converter skateboard is mostly aluminum-zirconium carbon. As the material of the ladle skateboard, it has high strength, good thermal shock resistance, and excellent erosion resistance and corrosion resistance; But for the converter skateboard to block slag technically, the service life …

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Measures to solve the problems of tundish refractory

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Some of the problems that occur during the use of tundish refractory materials are the quality of the material itself, and some are related to the on-site construction and need to be carefully observed and analyzed. Dry material has no strength Before the tundish is put into use, the dry material of the working layer needs to have a …

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The composition and use skills of sliding nozzle

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The sliding nozzle is composed of upper and lower sliding plates and 4 refractory bricks for the upper and lower nozzles. The pouring of each ladle of molten steel must pass through the upper and lower sliding plates and the upper and lower nozzles, so they are very strict. Firstly, they must have sufficient strength at high temperatures to …

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Selection and technological requirements of ladle purging plug

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Argon blowing is usually to build one or several ladle purging plug at the bottom of the pouring ladle or brick ladle. After tapping, blow argon gas through the breathable bricks to cause agitation of the molten steel in the ladle. Argon blowing can promote the floating of emulsified slag droplets and inclusions in steel, and can …

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Classification and production process of tundish sizing nozzles

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As the key functional refractory material for billet continuous casting, the sizing nozzle plays a role in controlling the flow of molten steel and determines the casting speed of the billet in continuous casting. It is a necessary condition to ensure the normal operation of continuous casting, which is called continuous casting function. refractory material. …

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Improvement measures for corrosion of tundish stopper

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1. Strictly control the slag from the big bag The main sources of slag components in the casting area of the tundish are ladle refining slag, tundish covering agent and molten steel inclusions floating up into the slag layer. Among them, the low silicon aluminum killed steel refining slag, which is more severely corroded by the stopper rod, …

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Advantages and disadvantages of fire clay brick

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According to production process, fire clay brick is divided into machine made brick and handmade brick. According to structures, fire clay brick is divided into solid brick and hollow brick, and hollow brick can be divided into load-bearing brick and nonbearing brick. Fire clay brick is made at different shapes according to different using requirements. Advantages of fire clay …

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