Mullit-Feuerleichtsteine

InsulatingfirebricksHS High-temperaturemulliteinsulationbricks High-temperaturemulliteinsulationbricksareimportednewtechnology,usinghigh-purityhot-mulliteclinker.Dependingonthetemperature,addafillermadeofaluminainlinewithburnproducts,hightemperaturefiring,directsynthesisofmullitephaseinenergy-efficientmaterialthatcanbedirectcontactwithflame.Bytherelevantunitsofthecurrentuseoftheproducttoachieveavarietyofsimilarproductsabroad,technicalindicators,advancedfurnacemustusenewmaterials,newmaterialisahigh-temperatureinsulationrefractorymullite. Maxoperatetemperatureoftestiteitems Maximumoperatingtemperatureofthetestitems Designtion HSMJ20 HSMJ23 HSMJ26 HSMJ28 HSMJ30 HSMJ32 1300 1350 1430 1540 1650 1760 Bulkdensity(g/cm3) 0.5-1.0 0.5-1.0 0.8-1.0 0.9-1.0 0.9-1.2 1.2-1.25 Coldcrushingstrength（Mpa） 0.9-1.2 1.2-3 3.5-4 4-4.5 4.5-5 5-5.5 Degreeofroomtemperatureflexral（Mpa） 0.7-1.0 1.0-1.3 1.5-1.8 1.9-2.0 2.0-2.1 2.1-2.2 Permanentlinearchange（%） -0.98 1200*24h -0.5 1300*24h -0.5 1400*24h -0.5 1500*24h -0.5 1510*24h -0.5 1600*24h Loadsofteningstartingpoint（。C） 1100 1250 1350 1450 1500 1600 ThermalconductivityW/(m.k)350C±10C 0.12 0.15 0.25 0.32 0.38 0.47 Thermalshockresistance（time）1000。Caircooled ≥20 ≥20 ≥20 ≥20 ≥20 ≥20 Chemicalcompostion Al2O3(%) ≥45 ≥50 ≥60 ≥70 ≥75 ≥80 Fe2O3 ≤1.0 ≤1.0 ≤0.8 ≤0.7 ≤0.6 ≤0.5 SiO2 55 40 35 35 18 16 CaO 1.8 1.7 1.7 1.4 1.2 1.0 SiC - - - - - - ZrO - - - - - - MgO 0.2 0.1 0.1 0.1 0.1 0.1