FIELD: process engineering.
SUBSTANCE: invention may be used, mostly, for producing fibrous nonwoven materials from metal fibres to be used in automotive industry, particularly, in exhaust gas processing. To produce said material, the following stages are performed: a) layer 3 is made from metal fibres 2, and b) metal fibres 2 are jointed together by welding to produce nonwoven material 1. At stage b) welding is repeated on one section of nonwoven material 1 to make several intersecting weld seams. Proposed device comprises feeding device 7 to drive metal fibre layer 3 and two welding sections 8 and 9 to produce joint between fibres and intersecting joints between fibres of partially welded section of layer 3.
EFFECT: higher resistance to thermal and dynamic loads.
14 cl, 7 dwg
