Submerged Entry Nozzle

Submerged nozzles using together with monoblock stoppers are used to shroud the casing stream between tundish and mould. This product has the function of flow control, shrouding and direction of the casting stream and also has high resistance to thermal shock, corrosion and mechanical cracking.

Item Submerged Nozzle Fused Silica Submerged

Entry Nozzle

Al2O3-C Body ZrO2-C Slag Line

Al2O3 (%) > 45

C + SiC (%) > 26 > 15

ZrO2 (%) > 70

Si O2 (%) ≥ 99

Refractoriness (°C) > 1770 > 1790

A.P. (%) < 18 < 20 ≤ 18

B.D. (g/cm3) > 2.50 > 3.20 ≥ 1.84

C.C.S (Mpa) >20 > 20 > 40

M.O.R. at romm

Temp. (Mpa) > 5.0 > 7.0

Permeability

Resistance to thermal shock (Times) > 5 > 5 > 10