METHOD OF FORMING REINFORCING BULGES ON ARTICLES FROM FLEXIBLE WEBS AT INTERSECTIONS OF WELDS BY HIGH-FREQUENCY WELDING Russian patent published in 2024 - IPC B29C65/04 

FIELD: welding.

SUBSTANCE: invention relates to a method of forming reinforcing bulges on articles from flexible webs at points of intersection of welds by high-frequency welding. Technical result is achieved by a method of forming reinforcing bulges on articles from flexible webs at points of intersection of welds by high-frequency welding, which includes forming at least one reinforcing bulge using at least one three- or four-beam electrode. Two electrodes are placed in the working area of the high-frequency welding press, at least one of which has the shape of a three-beam or four-beam star, between which a zone of intersection of seams of the article and the filler material is placed, a pressing force of the electrodes is created, after which high-frequency current is supplied to the electrodes with subsequent extraction of the article.

EFFECT: prevention of stretching and deformation of X and Y shaped seams, minimization of folding of webs in saddle areas of intersections of seams of the product, increased strength of intersection of seams, increased wear resistance of sections of clothes undergoing abrasive effects, increased thickness in the zone of intersection of seams.

11 cl, 4 dwg, 2 ex