Stainless Steel Sintered Mesh
Stainless steel sintered mesh is a versatile filtration and separation material created by bonding multiple layers of stainless steel woven wire mesh together through a sintering process. This involves applying heat and pressure in a controlled environment, causing the wires to fuse at their contact points, creating a strong and porous structure without the need for adhesives.
Structure and Manufacturing:
Typically made from multiple layers (often 2 to 5) of woven stainless steel wire mesh with varying weave patterns and wire diameters to achieve specific filtration properties.
The sintering process (diffusion bonding) creates a permanent bond at the wire intersections, enhancing the mesh's strength, rigidity, and dimensional stability.
Some designs incorporate a perforated metal layer for added support and robustness.
Common stainless steel grades used are 304, 316, and 316L due to their excellent corrosion and temperature resistance.
Key Properties:
High Mechanical Strength:
The sintering process significantly increases the mesh's strength and resistance to deformation under pressure. It often eliminates the need for internal support structures in filter elements.
Precise and Uniform Pore Size:
The layered construction and controlled sintering result in consistent pore sizes, leading to accurate and reliable filtration. Filtration ratings can range from sub-micron (less than 1 µm) to several hundred microns.
Excellent Corrosion Resistance:
Stainless steel provides inherent resistance to a wide range of corrosive environments, making the mesh suitable for various industrial applications.
High Temperature Resistance:
Depending on the grade of stainless steel used, sintered mesh can withstand high operating temperatures (up to 500-600°C and sometimes higher).
Good Permeability and Low Pressure Drop:
The porous structure allows for efficient fluid or gas flow with minimal resistance.
Easy to Clean and Backwash:
The robust structure allows for various cleaning methods, including backflushing, ultrasonic cleaning, and chemical cleaning, extending the service life of the filter.
Versatility in Fabrication:
Sintered mesh can be cut, welded, formed, and machined into various shapes and sizes to create different filter elements like discs, tubes, cartridges, and cones.
Advantages:
Higher mechanical strength and resistance to deformation.
More consistent and stable pore sizes for reliable filtration.
Improved durability and longer service life.
Easier to clean and reuse.
Can withstand higher pressures and temperatures.
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