Wear-resistant refractory plastic

The refractory plastic produced by Luoyang Jinkai Refractory Materials Co., Ltd. is a type of unshaped refractory material in mud or paste form, constructed by ramming, vibrating, or extrusion methods. It is formulated with aggregates such as high-alumina clinker, corundum, mullite, and silicon carbide, using different binders and additives. It features excellent wear resistance, strong adhesion, and a high service temperature (not lower than 1600°C). The construction process is simple with a short duration, and no furnace drying is required after completion. Its service life is significantly longer than other wear-resistant refractory materials, making it widely suitable for industries such as power generation, metallurgy, steel, ceramics, and chemicals. In the steel industry, it is mainly used as lining for various heating furnaces, soaking pits, annealing furnaces, sintering furnaces, and electric furnace roofs. The ramming construction technique is suitable for thin sections such as furnace water walls. The constructed wear-resistant layer exhibits high strength and abrasion resistance, meeting the performance requirements of wear-resistant refractory materials for boilers. In boilers, wear-resistant refractory plastic is primarily used in the dense phase zone of the furnace and steam-cooled cyclone separators. In these areas, the wear-resistant refractory material is designed as a single-layer rammed structure, fixed with wear-resistant pins, with a relatively thin design thickness applied directly to the construction surface.

 Project Indicators Product Wear-resistant Refractory Plastic Wear-resistant Refractory Plastic Refractory Plastic Grade JK-90 JK-80 JK-65 Main Composition Corundum Mullite Mullite Alumina Alumina Al203% ≥ 90 80 65 Bulk Density g/cm3 ≥ 2.90 2.80 2.70 Cold Crushing Strength MPa ≥ 110℃×24h 90 80 60 1000℃×3h 120 100 80 Cold Modulus of Rupture MPa ≥ 110℃×24h 17 16 14 1000℃×3h 20 18 12 Linear Change After Firing % 1000×3h -0.1~+0.2 -0.2~0.3 -0.2~+0.3 Thermal Shock Resistance cycles 1000℃ water cooling ≥ 40 30 25 Cold Abrasion Loss cm3 ≤ 4 5 8 Maximum Service Temperature ℃ ≥ 1600 1500 1400 Packaging 25kg/bag Storage Time 6 months Construction Method Ramming, Coating