| 摘要 |
<p>The invention relates to an apparatus for producing an end closure for a pipe (2) which forms part of a heat exchanger, said apparatus comprising: a frame (4), with a first side (6) and a second side (8) situated opposite the first side, and a tubular through-channel (10) whose opening (12) on said first side is delimited by a side surface (16) extending around the opening (12), it being possible for a pipe (2), which is intended to be closed, to be introduced into the tubular channel (10) from said second side (8); a press tool (32) which is arranged to execute a reciprocal motion through the channel (10); the press tool (32) being arranged, by virtue of its forwardly directed movement, to press an end closure blank (38) into the opening (12) of the channel (10). The invention also relates to a method for producing an end closure for a pipe (2) which forms part of a heat exchanger, said method comprising the measures of introducing a pipe (2) intended for closure into a channel (10) in a frame (4) in accordance with the above, and of pressing an end closure blank (38) into the through-channel (10) and pushing the blank (38) through the channel (10) and on into the pipe (2), with the blank, by engagement with the side surface (16) of the frame (4) and thereafter with the inner limit surfaces of the channel (10), being shaped to give a cup-shaped end closure which, with its aperture directed outward from the pipe end, fits into the latter. <MATH></p> |
