Mainly used in powder metallurgy industry or 3D printing, gas atomization process production of metal powder, such as iron powder, aluminum powder, copper powder, nickel-based alloy powders stainless steel, welding powder, Fe-Si aluminum, Fe-Si nickel, aluminum, iron, boron, etc.
Prime Features of Boron Nitride Gas Atomizing Nozzles
-Max using temperature: 1800°C
-Applicable environment: air, vacuum, or atmosphere protection environment
-Metal corrosion resistance in high temperature
-Non-bonding and non-reaction with metal liquid
-Wear-resistant and erosion-resistant to metal liquids
-High thermal shock resistance
-The formula can be designed according to customer’s using environment.
Material Properties
| Properties | Units | BMA | BSC | BMZ | BSN |
| Main Composition | - | BN+ZR+AL | BN+SIC | BN+ZRO2 | BN+SI3N4 |
| Color | - | White Graphite | Greyish-Green | White Graphite | Dark Gray |
| Density | g/cm3 | 2.25-2.35 | 2.4-2.5 | 2.8-2.9 | 2.2-2.3 |
| Three-Point Bending Strength | MPa | 65 | 80 | 90 | 150 |
| Compressive Strength | MPa | 145 | 175 | 220 | 380 |
| Thermal Conductivity | W/m·k | 35 | 45 | 30 | 40 |
| Thermal Expansion Coefficient (20-1000℃) | 10-6/K | 2 | 2.80 | 3.5 | 2.80 |
| Max Using Temperature
In Atmosphere In Inactive Gas In High Vacuum (Long Time) |
(℃) | 900
1750 1750 |
900
1800 1800 |
900
1800 1800 |
900
1800 1800 |
| Room Temperature Electric Resistivity | Ω·cm | >1013 | >1012 | >1012 | >1013 |
| Typical Application | - | Powder Metallurgy | Powder Metallurgy | Metal Casting | Powder Metallurgy |
| High Temperature Electrical Furnace Components | - | √ | √ | √ | |
| Metal Vaporize Crucible | |||||
| The Container of Metal
or Glass Melting |
- | √ | √ | √ | |
| The Casting Mould Components of The Precious Metal and Special Alloy. | - | √ | - | - | |
| High Temperature
Support Part |
- | √ | - | √ | |
| Nozzle and Transport Tube of The Melting Metal | - | √ | √ | √ | √ |
| Nitrides Sintering
(Sagger and Setter Plate) |
- | - | - | - | √ |
Prime Features of Zirconia Gas Atomizing Nozzles
-Max using temperature: 2200°C
-Applicable environment: air, vacuum, or atmosphere protection environment
-Metal corrosion resistance in high temperature
-Wear-resistant and erosion-resistant to metal liquids
-High thermal shock resistance
-The stabilizers and grains combination can be designed according to customer’s using environment.
Technical Indicators
| Indicators | Item | Units | MSZ-H | MSZ-L |
| Main Composition | ZrO2 | % | ≥95 | 95-96 |
| Al2O3 | % | ≤0.2 | ≤0.2 | |
| SiO2 | % | ≤0.4 | ≤0.4 | |
| MgO | % | ≤2.9 | ≤2.9 | |
| Fe2O3 | % | ≤0.1 | ≤0.1 | |
| TiO2 | % | ≤0.1 | ≤0.1 | |
| Physical | Color | - | Yellow | Yellow |
| Density | g/cm3 | ≤5.4 | 5.45-5.60 | |
| Porosity | % | ≤18.5 | ≤8 |
