Description

Long nozzle are also called protected bushing, used to prevent proected stream which between steel teeming ladle and medium jar are oxidation again, and avoid splash and slag coiled .Our corporation made several times test, developed AL2O-ZrO*-C long nozzle , main used corundum and alumina , squama graphite , less pollute , especially suit specific steel .Long nozzle have several advantages, even structure , well anti-thermo-shaking Stability, strong anti-corrade stability, enough mechanical intension , and so on Name of Product SEN Long Nozzle Stopper Index Item Body Slag Line Body ******- ****- ***- Al2O3 (%) ≥ *5 ****- *0 ****- *0 ****- ***** (%) ≥ *0 *5 *7 ****- *5 ****- ZrO2 (%) ≥ ***- *0 ****- ****- ****- ****- MgO (%) ***- ***- ***- ****- ***- *****- Apparent Porosity (%)≤ *0 ***- *0 ****- *8 *****- Compressive Strength (Mpa) ≥ *7 ****- *0 ****- *6 *****- Thermo-shaking Stability (water quenching at ***0℃) ≥5 Remark: * Others : we can manufacture according to the requirement of the customers