Sintered PTFE Filter

Porous metal filters stand as specialized filtering tools employed in applications where conventional filtration equipment falls short. Typically, metals undergo a sintering process, transforming them into porous or powdered structures, ensuring a more effective filtration process.

Technically, sintering is a metallurgical method applied to solidify metals or alloys into a powdered form. This involves heating the metal or alloy below its melting point to create an intense solid structure with a specific number of pores.

Here are some main types of porous filters used across various industrial applications:

• Sintered Porous Metal Filter: These filters boast pores for effective filtration and are crafted to withstand high pressure and mechanical stress. Manufacturing involves sintering plastic and high molecular polymer powder at elevated temperatures.

• Porous Stainless Steel: Utilizing grade 316 steel, these high-performance filters offer excellent pressure and temperature resistance, ideal for harsh conditions.

• Porous Discs: Shaped as filter discs, these filters are designed with precise pore sizes and numbers for efficiency in specific applications.

• Sintered Metal Filter: Tailored for high industrial and commercial demands, these filters accommodate the effective filtration of gases, liquids, and semi-solids.

• Porous Bronze Filter: Manufactured with spherical bronze powder, these filters excel in noise reduction and turbulence-proofing, making them a reliable choice across various industries.

Sintered plastic porous filters are available in a wide range of pore sizes, typically ranging from submicron to several hundred microns, allowing for precise control of filtration performance and particle retention.

Yes, sintered plastic porous filters can be customized to meet specific application requirements, including pore size, shape, dimensions, and surface properties. Customizations may also include the addition of additives or reinforcements for enhanced performance.

Yes, sintered porous filter discs are highly customizable. You can specify pore sizes, material preferences, disc diameter, and other parameters to meet the unique requirements of your application.

Filter porosity is classified into three major types: Primary Porosity, Secondary Porosity, and Effective Porosity. The calculation involves determining the ratio of the volume of gaps in the filter to the total volume, expressed as a percentage.

Porosity = (Volume of Empty Gaps/Total Volume of Filter) x 100

Other methods include:

• Direct Methods: Calculate the entire volume of the porous filter and the volume of a skeletal filter (without pores) to find the porosity.

• Computed Methods: Use modern computer technology to obtain a 3D image of a porous filter and employ defect analysis techniques.

• Water Evaporation Technique: Calculate porosity by determining the difference in weight between the saturated filter in water and the dried filter.

Yes, sintered porous filter discs can be designed for sterile filtration applications, especially when made from materials suitable for high-temperature and chemical sterilization methods.