NEWS

Xinda Foam Ceramic Filter for Magnesium Alloy to Solve Slag Defects and Stabilize Mass Production

2026-08-03 09:27

Ⅰ. Industry Opportunities and Process Pain Points

Magnesium alloy features low density, high specific strength and outstanding damping performance, making it a vital lightweight material for aerospace, new energy vehicles, 3C electronics and high-end equipment. It has been widely adopted for aircraft and precision military components.

Nevertheless, molten magnesium alloy has extremely high chemical activity. It oxidizes rapidly when exposed to air, generating abundant oxide inclusions and slag. These contaminants lead to deteriorated mechanical properties, surface flaws and poor corrosion resistance, resulting in high scrap rates. Many foundries recognize the advantages of magnesium alloy but struggle with unstable production.


Ⅱ. Foam Ceramic Filter: Developed Specifically for Magnesium Melt Purification

Xinda Foundry Technology releases FCF-M Special Foam Ceramic Filter customized for magnesium alloy melt. With a 3D interconnected ceramic network structure, the filter realizes multi-stage purification of molten magnesium.

Compressive StrengthPorosityMax Service TemperatureApplication Material
≥1.2 MPa80%~87%1150℃Magnesium Alloy
  1. Stable structural strength: Compressive strength ≥1.2 MPa, resistant to impact from molten metal to prevent breakage and secondary contamination.

  2. Excellent flow performance: 80%~87% moderate porosity ensures smooth high-flow transmission of molten metal without interrupting casting procedures, suitable for continuous mass production.

  3. High temperature resistance: Maximum service temperature of 1150℃, fully meeting temperature requirements of magnesium alloy casting.

  4. Outstanding high-temperature chemical inertness: No chemical reaction with molten magnesium or alloying elements at high temperature, eliminating secondary pollution for active magnesium melt.

The filter realizes comprehensive purification through four functions: blocking large slag particles, stabilizing liquid flow to reduce turbulence entrainment, adsorbing micro oxide inclusions, and forming filter cake for deep continuous filtration.


Ⅲ. Empower Foundry Lines: Improve Quality, Reduce Costs and Stabilize Production

Eliminate slag defects: Efficiently capture oxide slag and micro suspended impurities in molten metal to avoid inclusion defects.

Upgrade casting quality: Optimize internal microstructure, greatly improving mechanical properties, surface finish and corrosion resistance of magnesium alloy castings.

Support cost reduction & efficiency improvement: Lower scrap rate and stabilize product consistency, resolving unstable mass-production pain points.

Wide process compatibility: Suitable for gravity casting, low-pressure casting and precision casting, applicable to magnesium alloy parts for aerospace, military equipment, automotive lightweight and 3C electronics.


Magnesium alloy is vital for lightweight development. The casting challenges caused by its high chemical activity demand professional melt purification solutions.

Xinda special foam ceramic filter combines physical filtration and reliable chemical inertness. It provides trusted melt purification for magnesium foundries, enabling manufacturers to transfer from high-scrap trial production to stable high-quality mass production.

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