wanhaorefractory

  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...

More and more steel plants are using tundish exhangeable sizing nozzle recently. Compared with traditional sizing nozzle , the advantages of exchangeable nozzle are: 1.Simple structure, reliable performace, easy to operate. 2.Adopt single tube oil passage control, light cylinder, easy to handle and operate, only one button required for control. 3.The rack and base of cylinder are intergrated, which makes the positioning of slide block precise. 4.The cover of lower slide block is made from cast iron, the coordination of lower slide block and machined face of platen is with high precision, which could avoid leakage accident caused by the unqualification of alide block size. Article Source:  The advantages of tundish exchangeable nozzle Company name: Wanhao Refractory Email: sales100@wanhaorefractory.com Website: http://www.wanhaorefractory.com/