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Luoyang Jinkai Refractories Co., Ltd. specializes in the production of chrome corundum new type tapping platform bricks, slideway bricks, tapping trough bricks. Compared with fused zirconium corundum and zirconium mullite bricks, this series of products have the characteristics of high strength, excellent wear resistance and slag corrosion resistance, long service life (up to one to two years). Compared with fused zirconium corundum and zirconium mullite bricks, it can reduce the number of shutdown maintenance, save maintenance costs and improve furnace operation rate. Compared with water-cooled heat-resistant cast iron tapping trough, the new wear-resistant products have the advantages of safe and reliable use, energy saving and improving the quality of heating billet. The new wear-resistant steel channel brick, platform brick and slide rail brick are the renewal and replacement products of traditional products, and are also the preferred ideal products for heating furnace at present. Physical and chemical indicators are as follows:            index            JK-N1            JK-N2            JK-N3            chemical composition            (%)            Al2O3+Cr2O3            Over 93            --            Al2O3 (> 80)            Al2O3+Zr2O3            --            Over 93            SiC (> 12)            bulk density            (g/cm3)            110 Temperature x 24h            Over 3.2            Over 3.4            Over 3.00            1500 C x 3H            Over 3.2            Over 3.3            Over 2.90            Flexural strength            (MPa)            110 Temperature x 24h            Over 8            More than 10            More than 7            1500 C x 3H            More than 15            More than 15            More than 10            Compressive strength            (MPa)            110 Temperature x 24h            More than 30            More than 30            More than 30            1500 C x 3H            Over 100            Over 120            Over 80            Linear change rate (%)            Not more than            110 Temperature x 24h            +0.1            +0.1            +0.1            1500 C x 3H            +0.5            +0.5            +0.5            Use Temperature (C)            1600            1600            1600            Use site            Tapping platform, slideway, tapping trough            Steel tapping trough, slideway, steel tapping platform.            Slide rail, tapping platform, tapping trough.