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Stopper head >> Stopper head
Stopper head 

The stopper head closely work with the nozzle brick.As refractory, it stop the nozzle from leakage when theres no casting work.And when the casting work start,the stopper is lifted to allow gap between the stopper head and the nozzle bricks.Molten steel will flow out of the nozzle then. By regulating the stoppers position, the flow rate of molten steel could be well controlled. Screw or pin could be applied to fix the stopper head and the rod core. Stopper head can be made of fireclay, no-fired high alumina or tar impregnated high alumina refractory.

  Refactoriness(SK)

37

   Porosity(%)

≤24

   Bulk Density (g/cm²)

≥2.25

   Cold Crushing Strength(Kg/cm²)

≥450

1100℃水冷  Thermal Shock (次)

≥20

 Chemical Composition(%)

Al2O3

≥55.0

Fe2O3

≤2


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Click:174  private Date input time:2018-1-31 【 Print this page】 【return

zibo fubang wonjin refractory technology ltd.
Company Add: Kunlun Industrial Zone,Zichuan Zibo,Shandong,China.

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