Refractory air-permeable brick for steel ladle and forming process of refractory air-permeable brick

• Main Authors: SHENG GAOXIA, YANG YULONG, HAO LIKE, CHANG CHUNXIN, YANG QIANG, WANG ZHIYING, LIANG XIAOLONG, MA WEIPING
• Format: Patent
• Language: Chinese; English
• Published: 26.07.2024
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING

The invention discloses a fire-resistant air brick for a steel ladle and a forming process of the fire-resistant air brick, which are applied to the field of metal casting. According to the air brick, a preheating piece is additionally arranged on the basis of an existing slit air brick to preheat blown-in gas, and a heat absorption ring is used for absorbing heat of the steel ladle; heat is transmitted to the gas heating piece through the heat conduction rod and the heat conduction ring, so that the gas can be preheated when entering the gas permeable brick, the temperature difference when the gas is blown into the steel ladle is reduced, the temperature gradient is effectively reduced, and the influence of thermal shock is effectively reduced; and the extension pad extends outwards by utilizing the characteristic that the shape memory alloy diaphragm deforms when the heat rises, so that the contact area of the gas and the gas heating piece is increased, the preheating effect is further effectively improved,