Si3n4 Ceramic Silicon Nitride Si3n4 Degassing Rotors for Aluminum Die Casting

• Customization: Available
• Application: Molten Liquid Aluminum Alloy
• Type: Ceramic Rotor
• Density: 3.2-3.3G/Cm3
• Certification: ISO9001
• Hardness: 90-93
• Thermal Conductivity: 25
• Name1: Silicon Nitride Rotor
• Name2: Si3n4 Shaft
• Material: Silicon Nitride
• Transport Package: Export Carton
• Specification: customized
• Trademark: HIGHBORN
• Origin: Jiangsu, China
• Production Capacity: 1000PCS/Month
• Package Size: 15.00cm * 25.00cm * 25.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

silicon nitride degassing rotor for aluminum alloy refining

silicon nitride degassing rotor is made of sintered Si3N4 ceramic, precision machined with multi-blade impeller structure. Customizable rotor diameter, blade shape, central hole size and connecting shaft assembly. High density, low porosity, excellent air tightness. Designed for rotary degassing machine to refine molten aluminum alloy. Continuous working temperature up to 1350℃, matched with degassing shaft for argon/nitrogen bubbling.

customized silicon nitride degassing rotor

Non-wetting with molten aluminum, anti-sticking aluminum, less oxide slag adhesion, stable bubble breaking performance.
Ultra-low thermal expansion coefficient, superior thermal shock resistance, resistant to thermal fatigue under long-time rotating in hot aluminum liquid.
High hot bending strength, great corrosion resistance against molten aluminum, no contamination to aluminum melt.
Long service life, much longer than graphite rotor, reduce downtime and rotor replacement frequency.
Stable rotation, fine and uniform tiny bubbles, high hydrogen removal & slag adsorption efficiency, improve aluminum casting quality.

silicon nitride rotor with degassing shaft for aluminum casting

Q1: How about service life compared with graphite rotor?
A1: Si3N4 degassing rotor service life is 3~10 times longer than graphite rotor. It is not easy to oxidize, no carbon dropping.

Actual service life depends on working temperature, rotation speed and operating environment.

Q2: What is silicon nitride degassing rotor used for?
A2: It is core spare part for rotary degassing machine in aluminum foundry. The rotating rotor breaks argon/nitrogen into micro bubbles to remove hydrogen and adsorb oxide in molten aluminum, purify aluminum melt for wheel, auto structural parts and aluminum housing casting.

Technical Specifications

(Custom configurations available upon request.)

Property	GPS-SSN	HPSN
Density(g.cm-3)	3.30	3.23
Young's Modulus (GPa)	320	315
Bend Strength(MPa)	750	850
Thermal Expansion Coefficient (x 10-6/°C)	3.2	3.2
Fracture Toughness	7	8
Maximum Temperature (°C) for application	1150	1150
Dielectricity Constant	9	9

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FAQ

Q1: Can you provide exclusive customized solutions for special project demands? 
A1: Yes. In addition to conventional OEM and ODM customization, we can develop exclusive product structures, adjust technical parameters and optimize solutions according to special project standards, regional industry specifications and personalized buyer requirements, providing one-to-one customized technical support.
 
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Q4: Why is your factory price more stable than trading companies? 
A4: As a direct manufacturer, we control all links from raw material procurement, production processing to finished product output. There is no intermediate markup, and we can adjust costs according to long-term cooperative orders, maintaining stable and transparent pricing for long-term strategic partners.
 
Q5: What customized service items can you support besides product structure? 
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