In modern cast iron production, cupola furnaces are being phased out due to environmental concerns, and most foundries have switched to medium-frequency induction furnaces for melting. Compared to cupolas, the medium-frequency melting process is relatively simple; the chemical composition and temperature of the molten iron are easily controlled, and the absence of carbon or sulfur […]
中频炉铸铁原材料的选用原则及炉料配比 Read More »
In converter steelmaking, the durability of tapping bricks is crucial for improving production efficiency and reducing costs. While traditional magnesia-carbon tapping bricks exhibit excellent slag resistance and thermal shock stability, decarburization under high-temperature and highly oxidizing environments remains a major factor limiting their service life. This paper proposes a low-carbon composite converter tapping brick, significantly
Installing a gas-permeable plug at the bottom of a steel ladle allows for the injection of inert gas to stir the molten steel; this process promotes the flotation of inclusions into the slag layer and homogenizes the steel’s composition and temperature. Consequently, the gas-permeable plug serves as a critical functional component in ladle refining. As
In modern steelmaking processes, the gas-permeable brick is a crucial functional component in ladle refining technology. By injecting inert gases—such as argon—into the molten steel through the gas-permeable brick located at the bottom of the ladle, the system generates the agitation necessary to homogenize the alloy composition and temperature of the melt. These bricks are
影响钢包透气砖座砖使用寿命的因素和改进方向 Read More »
In the continuous casting process, the submerged nozzle is located below the ladle and above the mold, serving as a passageway for molten steel and regulating its flow. The submerged nozzle directly influences the flow velocity and flow field distribution of molten steel within the mold. When producing high-quality steel grades such as aluminum-killed steel,
With temperatures dropping recently, many construction projects have been affected. While refractory products are generally less affected, today we’ll focus on unshaped refractory castables. We’ve previously discussed precautions for installing refractory castables in winter. Some companies may consider these less important, but in fact, several national standards contain specific regulations regarding the winter installation of
The main raw materials for magnesia refractories are magnesite, dolomite, and brucite. These minerals are abundant in my country’s natural resources, primarily distributed in coastal areas such as Liaoning, Shandong, and Hebei provinces, providing a favorable resource foundation for the development of magnesia refractories in my country. This has made China the world’s largest producer
The use of refractory materials for converter linings directly affects the safety, operation, and production of steel plants, and significantly impacts steelmaking costs. Advanced steel plants and refractory material suppliers consider converter refractory material consumption as a key performance indicator. Currently, the most intuitive and scientific way to measure converter refractory consumption is by ton-of-steel
During the operation of medium-frequency furnaces, the refractory material used for the furnace lining is only 70-110mm thick. The inner side is in contact with the high-temperature molten metal, while the outer side is in close contact with the water-cooled coils. This results in a significant temperature difference between the inner and outer sides of
中频炉炉衬损毁机理及延长炉衬使用寿命的解决设计方案 Read More »
Magnesium rammed refractories are produced using an oxygen-enriched side-blown melting pool process. The primary equipment consists of an oxygen-enriched side-blown melting pool furnace, a settling electric furnace, and a continuous refining furnace, arranged sequentially from highest to lowest temperature. The molten material flows through channels between each furnace. This process represents a new, highly efficient,
Application of magnesia rammed refractories in oxygen-enriched side-blown processes Read More »
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