Metering Nozzle
Horton series of metering nozzles adopt mosaic pattern - the zirconia’s inner core and alumina sleeve including typical nozzle and fast-changeable nozzle. Both feature high refractoriness, low expansion superior resistance to erosion/corrosion and thermal cycling, etc.
Horton nozzles with fast-change system could be replaced easily to ensure consistent steel flow. They have been widely used in long-life tundish system in many I&S works at home and abroad, demonstrating excellent application results.
Zirconia Inner Core |
ZrO2 % Min. |
64 |
69 |
79 |
84 |
93 |
94 |
Bulk Density g/cm3 Min. |
3.6 |
3.7 |
3.9 |
4.0 |
4.3 |
4.3 |
Apparent Porosity % Max. |
23 |
23 |
23 |
23 |
21 |
21 |
Cold Crushing Strength MPa Min. |
80 |
80 |
80 |
80 |
100 |
100 |
Refractoriness MPa Min. |
1790 |
1790 |
1790 |
1790 |
1790 |
1790 |
Alumina Sleeve Block |
Al2O3 % Min. |
50 |
65 |
75 |
80 |
80 |
C % Min. |
|
|
|
|
3 |
Bulk Density g/cm3 Min. |
2.1 |
2.3 |
2.4 |
2.8 |
3.0 |
Apparent Porosity % Max. |
25 |
25 |
25 |
25 |
10 |
Cold Crushing Strength MPa Min. |
40 |
40 |
40 |
40 |
40
|