摘要:
Production of open pore metal foam body in Ni alloy by coating a metal foam Ni based body with liquid binder, application of a mixture of Ni based alloy powder and organic component of phase change temperature from the solid to lquid state of at least 30[deg]C to the binder coated surface of the base foam body, heat treatment of the binder and organic component with sintering of part of the powder particles and bonding of the remainder of the powder particles via sinter bridges to the base of the foam body.
摘要:
The invention relates to an apparatus for the separation of particles contained in exhaust gases of internal combustion engines in which the exhaust gas flow is guided through a filter medium in which particles can be absorbed and held back (4) . The invention should improve the separation in a cost effective manner with respect to conventional particle filters. In accordance with the invention, the filter medium (1) is made from a metal open-pore foam having at least two layers (11, 12, 13) which each have a thickness, porosity and/or pore size in the flowthrough direction through the filter medium which differ from one another.