| 摘要 |
<p>A tension cylinder for a tension steel wire for use in public works is disclosed. The tension cylinder of the present invention includes a cylinder body (110), a hollow tension steel wire guide pipe (130), which is provided through the cylinder body along a longitudinal center axis thereof, a piston (120), which is airtightly provided between the cylinder body (110) and the tension steel wire guide pipe (130) so as to be reciprocally movable using hydraulic pressure, and a tension steel wire holding means (160), which is provided on an end of the rod of the piston to hold the tension steel wire when the piston is extended from the cylinder body. Here, the cylinder body (110) and the piston (120) are made of aluminum alloy having a low specific gravity, and surfaces of portions of the cylinder body (110) and the piston (120) which require high abrasion resistance and surface hardness are anodized, thus ensuring lightness and sufficient strength.</p> |
