METHOD FOR SECURING ENDS OF THIN-WALL TUBES IN OPENINGS OF TUBE PLATES Russian patent published in 1998 - IPC

Abstract RU 2117544 C1

FIELD: machine engineering, namely production of different-purpose apparatuses including tubes mounted in openings of tube plates. SUBSTANCE: method comprises steps of placing end portions of thin-wall tubes in openings of tube plates; preliminarily cold expanding that portions; introducing insert-branch pipes into end portion of tubes and realizing their common expanding. EFFECT: enhanced reliability of tube end securing. 6 dwg

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RU 2 117 544 C1

Authors

Tsirel'Man Naum Moiseevich

Tsirel'Man Evgenij Naumovich

Dates

1998-08-20Published

1994-10-25Filed