FIELD: process engineering.
SUBSTANCE: invention relates to ultrasound clearance welding of pileless clothes. Particularly, it relates to ultrasound welding of cloth thread ends in plain-pressed open seam with controlled clearance. It can be used for making seams in cloth by ultrasound welding along thread ends in open seam area. To set spacing between head and support at definite level subject to welding depth and welding consumed power mechanical stop can be used.
EFFECT: extra degree of controllability, seam strength higher than that of seams reinforced by gluing.
25 cl, 12 dwg
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