Sheet having a multilayer structure
AssigneeUsinor
InventorMarc Mantel
Life of this patent
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Abstract
Sheet having a multilayer structure, called a sandwich sheet, composed of two rolled metal skins which are joined together by a core, in which sheet the core contains a stainless steel wool.
Claims13
A rigid sheet having a multilayer structure comprising two planar rolled metal skins which are joined together by a core, wherein the core comprises stainless steel wool.
A process for producing a rigid sheet having a multilayer structure composed of two planar rolled metal skins joined together by a core comprising stainless steel wool, comprising:
- assembling the two skins and the core by calendering so as to define the thickness of the multilayer structure;
- generating an arc perpendicular to the surface of the skins in order to weld, in the arc zone, the fibers of steel wool which are in contact with each other, thereby forming a rigid network, and the fibers of steel wool which are in contact with the internal surfaces of the two skins thereby containing the core and said skins.
A process for the production of a tube for a motor-vehicle exhaust line, wherein a rigid sheet having a multilayer structure and comprising two planar rolled metal skins joined together by a core comprising stainless steel wool is rolled and welded, in order to form a tube having a double wall and a core of stainless steel wool.
Dependencies are inferred from the claim text.