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Refractory Products for Tundish1
Refractory MaterialStopper RodsLadle Shroud
Sinometal Machinery Corp.
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Product Description Stopper Rods Stopper RodsThe Sinometal series of mono block stoppers include alumina-carbon type and magnesia-carbon type to suit for individual casting conditions.A broad range of designs are available for stopper head or slag line, reliable and satisfactory performances have been achieved in decades of operations worldwide. BodyHeadMaterialASRASHASMYSChemical analysisAl2O3 %≥45.0≥55.0 ≥75.0MgO % ≥60.0 C+SiC %≥25.0≥20.0≤20.0≥10.0Physical propertiesBulk density g/cm3≥2.36≥2.44≥2.50≥2.70Apparent Porosity %≤17.0≤19.0≤18.0≤17.0Cold Crushing Strength Mpa≥16.0≥20.0≥15.0≥20.0Modulus of Rupture Mpa≥5.0≥5.0≥4.0≥6.0 Fused Silica StopperChemiacl analysisPhysical propertiesSiO2 %Bulk Density g/cm3Apparent Porosity %Cold Crushing Strength Mpa≥99≥1.85≤15≥40 The Sinometal serial ladle shrouds are ISO-pressed Al2O3-C based products, featuring superior thermal resistance to erosion-corrosion, oxidation and thermal cycling, etc. They are easy to install and preheat is unnecessary. Sinometal has supplied ladle shrouds for decades of customers worldwide, proving reliable performances and long casting life. BodySlag linePerformance conditionPreheatingNon-PreheatingAcidBasicNeutralChemical analysisAl2O3 %≥40.0≥45.0 ≥55.0ZrO2 % ≥55.0 MgO % ≥55.0 C+SiC %≥30.0≥20.0≥18.0≥15.0≥15.0Physical propertiesBulk Density g/cm3≥2.15≥2.10≥3.40≥2.50≥2.40Apparent Porosity %≤19.0≤19.0≤18.0≤18.0≤18.0Cold Crushing Strength Mpa≥18.0≥18.0≥20.0≥18.0 Modulus of Rupture Mpa≥6.0≥6.0≥6.0≥4.0≥6.0 The Sinometal series of SENs are ISO-pressed products with special reinforcement at slag line. Sinometal SENs enjoy good reputation for excellent slag resistance, clog-proof, long life and safety etc. Sinometal has supplied SENs with fast-changeable system and SENs for thin slab casting for many customers worldwide, demonstrating reliable performance and long service life. BodyAl2O3 Anti-cloggingSlag lineBowlPerformance conditionPreheatingNon-PreheatingArgonNon-ArgonNon-carbonZ45ZSPMaterial is same as the cooperative stopperChemical analysisAl2O3 %≥40.0≥45.0≥43.0 ≥65.0 ZrO2 % ≥35.0 ≥75.0≥65.0C+SiC %≥25.0≥20.0≥20.0≥15.0≤8.0≥11.0≥15.0MgO % ≥18.0 Physical propertiesBulk Density g/cm3≥2.25≥2.36≥2.10≥2.58≥2.65≥3.5≥3.3Apparent Porosity %≤19.0≤19.0≤25.0≤21.0≤20.0≤22.5≤20.0Cold Crushing Strength MPa≥19.0≥20.0≥10.0≥18.0≥18.0≥16.0≥16.0Modulus of Rupture MPa≥6.0≥6.0 ≥3.0≥3.0 Sinometal series of high-temperature burned slide plates have the features of high strength, high erosion / corrosion resistance, excellent thermal shock resistance and long life etc.They are used widely in large and medium-sized con-casting ladles and tundishes.BrandAl2O3-ZrO2-C Slide PlateMgO-Spinel Slide PlateHigh Performance Slide PlateAl2O3 % Min.70751060C % Min.56 4ZrO2 % Min.55 5MgO % Min. 80 Apparent Porosity % Max.661011Bulk Density g/cm3 Min.3.153.12.953.0Cold Crushing Strength MPa Min.1001007095Modulus of Rupture MPa (1400oC×0.5h) Min.1813710ApplicationLarge or medium-sized con-casting tundish.Calcium steel,killed steel, open steel etc.Tundish slide plate Stopper system is normally used in tundish for con-casting of slab and bloom. Through adjusting the slot between the stopper and the upper nozzle, the steel flowing rate could be controlled. During the casting, there will be some erosion on the stopper and upper nozzle. So the quality of the upper nozzle is very important to tundish life.The Sinometal series of upper nozzles with ZrO2 Insert feature high refractoriness, superior resistance to thermal shock, erosion/corrosion etc. Fitting together with Horton serial of ladle shroud, stopper and SEN, tundish casting sequences will be remarkablely improved. The products have been used in decades of steelworks worldwide, gain high customer satisfaction.Upper Nozzle-InsertZrO2 % Min.6469799394Bulk Density g/cm3 Min.3.63.73.94.34.3Apparent Porosity % Max.2323232121Cold Crushing Strength MPa Min.808080100100Refractoriness oC Min.17901790179017901790 Upper Nozzle-BodyAl2O3 % Min.65756580MgO % Min. 10 C % Min. 33Bulk Density g/cm3 Min.2.32.42.93.0Apparent Porosity % Max.25251010Cold Crushing Strength MPa Min.60604060 To solve clogging problem occurred on conventional tundish upper nozzle and submerged entry nozzle, Sinometal developed porous upper nozzle serial products including fast-change type and normal type. The replacement of SEN may be done during casting when using Sinometal serial fast change porous upper nozzles, and longer tundish casting sequence is obtained. Sinometal has offered porous upper nozzles to a decade of steelworks, gaining high customer satisfaction. Al2O3 % Min.808080C+SiC % Min.1010 Bulk Density g/cm3 Min.1100oC×24h3.153.13.15Cold Crushing Strength MPa Min.604570Modulus of Rupture MPa Min.121015Apparent Porosity % Max.101615Permeability %-100-Skimmer Block, Impact Pad and Well Block Sinometal offers a wide range of precast shapes for tundish such as MgO-based or MgO-Al2O3-based skimmer blocks, impact pads and nozzle well blocks. Individual design is available to meet needs of specific operation condition. Sinometal series products feature high fired strength, superior resistance to erosion/corrosion, long service life.Al2O3 % Min.4580805-MgO % Min.33648085SiO2 % Max.107787Bulk Density g/cm3 Min.110oC×24h2.903.003.052.902.85Modulus of Rupture MPa Min.110oC×24h1035710Cold Crushing Strength MPa Min.110oC×24h6020355058Linear Change %110oC×24h±0.1±0.1±0.1±0.1±0.1
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