Foundry Sector

Molten metal filtration mesh is a crucial component in casting, designed to remove impurities, stabilize metal flow, and ensure the production of high-quality, defect-free castings.

Purpose of Molten Metal Filtration

During the casting process, molten metal often contains non-metallic inclusions such as oxides, slag, and refractory particles. These impurities can compromise the final product by causing porosity, cracks, surface roughness, and reduced mechanical strength. Filtration meshes act as a barrier, ensuring that only clean metal reaches the mold. This directly enhances the integrity, surface finish, and dimensional accuracy of cast parts.

Materials and Types of Filters

Fiberglass Mesh Filter Cloth

Phenolic Coated Fibreglass Mesh Sheets, Die Cut Parts or Preformed shapes

Silica Mesh

Metal Mesh

Molten Metal Filtration mesh remove impurities through several mechanisms:

Mechanical Sieving: Captures particles larger than the mesh openings.

Deep-Bed Adsorption: Captures finer inclusions within the mesh matrix.

Flow Stabilization: Rectifies turbulent metal flow to reduce oxidation and mold damage.

Considerations

When selecting one of Textile Technologies molten metal filtration mesh products, consider the following factors:

Match the filter material’s high-temperature tolerance to the molten metal.

Mesh Size / Precision: Finer meshes provide better inclusion removal but may reduce flow rate; select according to the required casting precision.

Form Factor: Choose between mesh fabric, sheet, bag, or cup designs based on the casting method and ease of installation.

Need Technical Support? Contact Textile Technologies Europe for expert advice: