Lower zirconia core

The zirconia core under the fixed diameter nozzle of Qingdao Sailao High Temperature Ceramics Co., Ltd. refers to a functional device made of high-temperature structural ceramics installed at the bottom of the continuous casting tundish. Its main function is to maintain the static pressure of the molten steel in the tundish basically unchanged, and the molten steel flows into the crystallizer through the fixed diameter nozzle. The crystallizer is cooled by high flow water, taking away the heat released during the solidification of the molten steel, causing it to solidify into billets. Due to the limited heat carried away by the water cooling of the crystallizer, the amount of molten steel flowing into the crystallizer per unit time must be within a certain range. The larger the aperture of the fixed diameter nozzle, the more liquid steel flows into the crystallizer per unit time. Choose a suitable aperture to make a tundish