| 摘要 |
<p>An apparatus (10) for expanding tubular elements (12), comprises a tool body (IS); an axially compressible expansion body (34) mounted on the tool body such that the outer surface of the expansion body is substantially the same outer diameter as that of the tool body; and means (30, 26) for axially compressing the expansion body such that its outer surface is expanded beyond the outer diameter of the tool body. A method for expanding tubular elements, comprises positioning an apparatus as claimed in any preceding claim at a predetermined position in the tubular element; and compressing the expansion body such that its outer surface expands against the inner wall of the tubular element and causes it to expand and deform permanently. The invention relates further to various applications of the apparatus for expanding tubular elements.</p> |
