Sintered, highly porous body and method for the production thereof
AssigneeGKN Sinter Metals, LLC
InventorKlaus Heiburg
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Abstract
The invention relates to a sintered highly porous body comprising at least one layer that is made of a material, which can be sintered and which contains fibers. The aim of the invention is to provide a body of the aforementioned type with improved burn-off properties and values for the flame adherence. To this end, the fibers used are curved on one and/or both sides and they have a principal axis that is shorter than approximately 1 mm and a secondary axis that is shorter than approximately 200 μm, whereby the principal axis is longer than the secondary axis. The invention also relates to a method for producing the sintered porous bodies and to the use thereof.
Claims40
A sintered porous body comprising at least one layer made of sinterable material that comprises fibers with a hemiellipsoidal cross section, which are curved on one side and largely flat on the other side, and having a principal axis that is shorter than 1 mm and a secondary axis that is shorter than 200 μm, whereby the principal axis is longer than the secondary axis.
A highly pourous combustion element comprising a body having at least one layer made of sinterable material, said material comprising fibers having a hemiellipsoidal cross section on at least one side thereof so as to be curved on one side and largely flat on the other side, at least a portion of said fibers having a principal axis that is shorter than 1 mm and a secondary axis that is shorter than 200 μm, whereby the principal axis is longer than the secondary axis.
A method for producing highly porous bodies with at least one layer made of a sinterable material, comprising fibers, comprising the steps of:
- cutting fibers to a length of a maximum of approximately 20 mm;
- applying a material including the fibers with a pouring volume of approximately 0.2 to 0.4 g/cm2 after said cutting step;
- and
- sintering the material after said applying step.
Dependencies are inferred from the claim text.