Burner membrane comprising a needled metal fibre web
AssigneeN. V. Bekaert S.A.
InventorsEddy Lambert, Gabriel Dewaegheneire
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Abstract
A burner membrane has at least one layer consisting of a compressed, needled fiber web with a porosity of between 60% and 95%, and that is constructed of heat-resistant stainless steel fibers. A method for its manufacture includes the steps of providing a fiber web composed of heat-resistant stainless steel fibers, needling the fiber web, and compressing the needled fiber web to the desired porosity.
Claims44
Burner membrane comprising at least one layer consisting of a needled fiber web which is compressed to a porosity of between 60% and 95%, and that is constructed of heat-resistant stainless steel fibers, wherein the fiber web is needled in one step and compressed in a different step, further comprising one of a woven and knitted fabric.
Burner membrane comprising at least one layer comprising a needled fiber web which is compressed to a porosity of between 60% and 95%, and which comprises heat-resistant stainless steel fibers, wherein the fiber web is needled in one step and compressed in a different step, further comprising one of a woven and knitted fabric incorporated into the burner membrane.
Method for avoiding a sintering operation in the manufacture of a burner membrane, said method comprising the following steps;
- (a) providing a fiber web comprising metal fibers;
- (b) needling the fiber web;
- (c) compressing the needled fiber web to a desired porosity to form a burner membrane, wherein the compressing step is not performed in the needling step;
- (d) incorporating one of a woven and knitted fabric into the burner membrane;
- (e) wherein the membrane is not sintered.
Dependencies are inferred from the claim text.