Metal Fibre Filter Media for High-Temperature Filtration
topic
Sintered metal fibre filter media are produced by laying stainless steel or Hastelloy fibres of 2 to 30 micrometre diameter into a three-dimensional porous structure that is diffusion-bonded at 1100 to 1300 degrees Celsius under hydrogen atmosphere into a rigid porous sheet with pore sizes from 0.5 to 100 micrometres, achieving continuous service temperature to 900 degrees Celsius and resistance to cyclic thermal shock and backpulse regeneration.
Role
Provides the filtration medium for high-temperature, high-pressure, and chemically aggressive process gas filtration applications in polymer production, chemical processing, and diesel exhaust aftertreatment where ceramic fibre and glass fibre filter media cannot survive the mechanical stress of backpulse cleaning or the chemical environment of the process stream.