Magnesia-based gunning material

Zhengzhou Kexin Refractory Materials Co., Ltd. uses high-purity, premium-quality MgO, alumina, corundum, magnesia-alumina spinel, and magnesia-based plasticizers as primary raw materials, combined with environmentally friendly carbon binders and resins through a mixing and kneading process. This product boasts excellent thermoplasticity and an ideal drying-curing time, ensuring that the magnesia-based gunning mix exhibits outstanding creep behavior at high temperatures in slag-iron tapping openings. As a result, it easily forms a stable, dense mud layer that effectively protects the refractory materials in the slag-iron tap area. Moreover, the magnesia-based gunning mix reacts with MgO, FeO, and SiO₂ present in the molten slag and iron to form high-melting-point compounds, significantly enhancing the material's resistance to erosion and scouring by the molten slag and iron.

Anhydrous ramming mass for submerged arc furnaces

The Submerged Arc Furnace (SAF) uses arc and resistance heating to convert electrical energy into thermal energy, reducing metal oxides in ores within a closed or semi-closed environment. It is a core piece of equipment in the metallurgical industry, essential for high-temperature reduction smelting processes, and is primarily used to produce ferroalloys (such as ferrosilicon, ferromanganese, and ferrochrome), calcium carbide (CaC₂), yellow phosphorus, and other key products.

Refractory castables for submerged arc furnaces

Refractory castables for submerged arc furnaces are unshaped refractory materials used as linings inside these furnaces—primarily designed for smelting ferroalloys, calcium carbide, and other similar materials. After being mixed with water or a binding agent, they are poured and shaped to form a durable protective layer. These materials must withstand severe erosion from high-temperature molten metals, mechanical abrasion, and thermal shock, while also exhibiting excellent resistance to corrosion, superior thermal stability, and robust high-temperature strength. As a result, they are ideal for safeguarding various sections of the furnace lining. Proper selection of furnace castables combined with standardized construction practices can significantly reduce the rate of lining damage, minimize the frequency of furnace shutdowns for maintenance, and ensure the efficient and safe operation of the submerged arc furnace.

Eco-friendly slag-blowing mud

Zhengzhou Kexin Furnace Materials Co., Ltd. has developed an environmentally friendly slag tap that not only prevents the generation of colored smoke, harmful substances, and spattering during opening and closing—but also ensures stable flow rates during slag discharge, with minimal erosion or enlargement of the slag outlet hole.

Eco-friendly Iron Mouth Clay

Some customers require uniform flow rates during iron tapping, contamination-free smelting products, and a healthy, environmentally friendly working environment. Zhengzhou Kexin Furnace Materials Co., Ltd. has tailored its production process—using high-quality, eco-friendly raw materials and employing scientific design—to meet these exacting demands. As a result, the company’s environmentally friendly iron tap mud ensures consistently controlled iron flow rates, eliminates pollution and splashing during tapping, and prevents the release of harmful substances during both opening and closing operations.

There is water cannon mud.

Water is used to mix refractory clay, alumina clinker, metallurgical coke, silicon carbide, and asphalt into a pliable sealing material with consistent plasticity. Water-based gunning mass is primarily used to seal the tapping holes of small blast furnaces and electric arc furnaces, making it ideal for smelting scenarios with low furnace pressure and infrequent iron tapping operations. Zhengzhou Kexin Furnace Materials Co., Ltd. has developed a water-based gunning mass that features low moisture content, excellent plasticity, strong bonding performance, and an extended shelf life.

Carbon Ramming Mass

Carbon ramming mass is an amorphous refractory material primarily composed of carbon-based materials, applied through manual or mechanical tamping to create a dense, compact structure. It is widely used in high-temperature, slag-resistant, and electrically conductive applications—such as in submerged arc furnaces, electrolytic cells, and blast furnace hearths. Its key advantages include excellent resistance to molten-metal erosion, superior thermal conductivity, and the ability to accommodate complex furnace geometries during construction. The performance of carbon ramming mass hinges critically on the purity of the carbon raw materials and the sintering quality of the binding agents; proper selection can significantly enhance the erosion resistance and extend the service life of high-temperature equipment.