FIELD: devices for continuous press-working of pipes from metal granules, mainly of aluminium alloys. SUBSTANCE: granules from bin move by gravity into pressure chambers. During rotation of rollers 1 and 4 granules are transferred in direction of rollers, with granules compacted and preseized. Since clearance between annular dissector and groove is closed by dissector 9, granule metal remains in pressure chamber. Then, metal flows welding chamber 11 and further into pipe. EFFECT: enhanced mechanical properties of pipes and enlarged operating capabilities due to press-working of articles with sizes exceeding those of plug gauge cross-section. 5 dwg, 1 tbl
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Authors
Dates
1994-07-30—Published
1989-12-04—Filed