| 摘要 |
Method of making non-positive connections between tubular pieces (9, 11) which are inserted into each other or of fixing elements (10) slid onto tubular pieces (9, 11) by continuous radial widening of a plurality of coaxially arranged sleeves (5, 7) which are fitted into these elements, in which method the sleeves (5, 7) are filled with pressurised liquid, and pistons (4, 6, 8) are inserted into their openings, facing openings of adjacent sleeves (5, 7) being closed by a single piston (8), and the internal pressure being increased by bringing closer together the two pistons (4, 6) which close the openings located towards the outside of the outer sleeves (5, 7). …<IMAGE>… |
