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Company News About Metal Risers Oxidizing Quickly? Silicon Nitride Riser Tubes Ensure Clean and Stable Aluminum Flow
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Metal Risers Oxidizing Quickly? Silicon Nitride Riser Tubes Ensure Clean and Stable Aluminum Flow

2024-11-06
Latest company news about Metal Risers Oxidizing Quickly? Silicon Nitride Riser Tubes Ensure Clean and Stable Aluminum Flow

During low-pressure aluminum casting, metallic riser tubes often oxidize or react with molten aluminum, generating inclusions and reducing product purity.
The Silicon Nitride Riser Tube offers outstanding resistance to oxidation, corrosion, and thermal shock.

Made by precision sintering, the material features a dense microstructure and excellent thermal stability, capable of operating at 800–1000°C without deformation.
Because silicon nitride is non-wetting to molten aluminum (contact angle >90°), it prevents metal adhesion and contamination.

Field applications in aluminum wheel casting have proven that Si₃N₄ riser tubes last over 12 months, compared with only 3–4 months for metallic tubes, cutting replacement costs by 60% and ensuring stable, high-purity metal flow.
Si₃N₄ risers are now widely adopted in die casting, aluminum alloy refining, and continuous casting systems, ensuring consistent quality, longer uptime, and improved process cleanliness.

Wuxi Special Ceramic Electrical Co.,Ltd
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Steatite Ceramics

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Zirconia Ceramics

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