FIELD: technological processes.
SUBSTANCE: long-length auger comprises sections serially connected by their ends. Long-length auger is made of sections, external surface of which has turns that form continuous screw line with specified pitch. At that length of surface with turns of every section is not multiple of screw line pitch. Sections are connected by welding to provide specified distance between the first turn of the first section and the last turn of every subsequent section. Flat faces are arranged in end parts of sections for welded seam with provision of cavity in area of turn. Sharp angle top is cut at joined turns by plane that passes from external surface of turn to external surface of billet to produced molten pool in joint.
EFFECT: lower deformation of long-length auger and higher accuracy of its parameters.
3 cl, 3 dwg
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