Products

Brief Introduction

Metering Nozzle

AMR 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.

AMR 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
 









Metering Nozzle