| 摘要 |
<p>This invention relates to a thermite welding process involving vibration and a casting mould for use in the thermite welding of a railway line, the mould including at least two sections to form a rail cavity profile about the area of the end of sections of railway line to be welded or joined, the cavity being of a profile and size of the railway line being welded, and a means to retain the mould together, the mould having at least one riser vent hole on either side of the rail cavity profile, with each said riser vent hole rising from the foot of the profile cavity to an entry trough for receiving casting mix, and wherein a crucible core is adapted to be fitted to the top of the mould above the entry trough so as to allow, in use, casting mix to drop into the mould when the desired temperature has been reached.</p> |
