METHOD OF MAKING AN INSULATING PACK FOR AN INSULATING COMPONENT

摘要

The invention relates to a method for producing an insulating pack (10), according to which a stack (9) of metallic lamellae is cold-welded simultaneously along a predefined contour and separated from a remaining area. The insulating pack produced according to the invention preferably has a plurality of knobbed and/or perforated aluminium foils (12, 14, 16) and at least one stretch film (18) and is characterized by a narrow welding seam (20) extending along the edge. The insulating pack can be used as an insulating part on its own or loosely inserted into an additional supporting or covering layer. Such insulating parts can be configured in an acoustically active manner and are used in the motor industry, machine industry and/or electronic or computer industry. Means for carrying out the method provided for in the invention provide for the use of a cutting blade with two cutting flanks. A preferred version of the cutting blade has cutting flanks inclined at different angles and can be configured as a rotary blade.