| 摘要 |
<p>Exothermic or cast welding apparatus and method utilizes a refractory block having alternative use external recesses in at least two different faces. The block is clamped to a second block to form the mold. The block is preferably cubic and has six alternative use faces. The second block may also be cubic and may have six alternative use faces, a selected face on the first matching a face on the second. The recesses may be half-round forming sleeving passages for round conductors. The blocks are removably mounted in a hinged clamping fixture, and the recesses may extend diagonally of the block faces. On a given block each face may be different or the same, or some may be different and some the same. <IMAGE></p> |
