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  (1) Ensure that there is no deformation in the sliding mechanism of the continuous casting sizing nozzle , there is no foreign matter on the sliding stroke of the sizing nozzle, and the gap between the sizing nozzles is less than or equal to 0.3mm. (2) The size of the zirconium sizing nozzle is reasonably designed, there is no damage and cracks before use, and the board surface is flat without unevenness. (3) The production rhythm is stable, the quality of molten steel is qualified, and there is no phenomenon of high and low temperature and molten steel interception. (4) The personnel for replacing the sizing nozzle are skilled, and there should be no accidental burning or diameter expansion caused by human factors. 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 spreadability of ...

  The tundish is a refractory container, and the molten steel poured from the ladle is distributed to each mold through the tundish nozzle . Continuous casting has the advantages of increasing metal yield and reducing energy consumption, simplifying the steelmaking production process, shortening the process, and significantly improving production efficiency. Tundish as a metallurgical reactor is an important part of improving steel output and quality. Whether for the smooth progress of continuous casting operations or for ensuring that the quality of molten steel meets needs, the role of the tundish cannot be ignored. It is generally believed that the intermediate package plays the following roles: 1. Shunting function. For the multi-stream continuous casting machine, the molten steel is divided by the multi-nozzle tundish. 2. Continuous pouring effect. In the multi-furnace continuous pouring, the molten steel stored in the tundish plays a role as a link when changin...

  It is one of the important smelting methods to blow inert gas into molten steel through the upper nozzle of tundish . Therefore, the upper vent of tundish is widely used. Through the optimization of the material combination of the upper vent nozzle, the upper nozzle with the ladle purging plug ring can be made, which has excellent air permeability and resistance to physical and chemical erosion. There are three points to pay attention to the performance of the air vent: excellent air permeability, heat resistance and impact resistance and steel erosion resistance. The domestic steel plants generally adopt dispersion type nozzle, which is made of corundum and chrome corundum. It is noted abroad that the dispersion type and water mouth with straight holes are used, and the material is aluminum carbon material. Based on the domestic and foreign experience and the actual situation of steel mills, the material combination is optimized. The vent ring is made of chromium c...