FIELD: process engineering.
SUBSTANCE: invention can be used for butt welding of pipes. Articulated elements are coupled by tightening device and can be fitted on the butt of connected pipes. Belt elements are composed of frames mad of round bars. Articulation of said elements is composed of bent metal band with connected ends. End frames are articulated by end hinges with blocks. Tightening device is composed by screw passing through said blocks and provided with lever for its revolution. Said frames allow the making of welds on pipe buts at tightened belt.
EFFECT: high-quality but welding, higher efficiency of welding.
3 dwg
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