Quick change,submerged entry nozzle of al-zn-c
The sumberged entry nozzle serve to protect the molten steel casting between tundish and crystalization vessel, in conjunction with mono block stopper it controls the molten steel flow rate,stop the molten steel and adjust the flow direction. This product boasts of good properties such like excellent thermal resistance,reliability,anti-errosion and anti-mechanic crack. Each batch of products shall be through strict Non-destructive test before release.
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Item ££ Index ££Category |
Mono block stopper |
Quick change,submerged entry nozzle |
Long nozzle |
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AL2O3-C Molten steel proper |
slag line
ZrOX3-C |
Molten steel proper
AL2O3-C |
Slag line Zr03-C |
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AL2O3-C % |
>60 |
>45 |
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>40 |
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C+SiC % |
>25 |
>26 |
>15 |
>28 |
>20 |
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ZrO3 % |
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>70 |
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>60 |
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SIO2 |
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15-25 |
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Refractory ability |
>1770 |
>1770 |
>1790 |
>1700 |
>1790 |
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Apparent porosity rate |
<18 |
<18 |
<20 |
<20 |
<20 |
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Density g/cm3 |
>2.65 |
>2.5 |
>3.20 |
>2.20 |
>3.0 |
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Compression resistance under ambient temperature Mpa |
>20 |
>20 |
>20 |
>20 |
>20 |
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Anti-crack ability under ambient temperature Mpa |
>7.0 |
>7.0 |
>7.0 |
>7.0 |
>7.0 |
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Air vent flow (0.1Mpa)(Nl/min) |
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Thormal shock stability, times |
>5 |
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>5 |
>10 |
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