B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 31/00 (2006.01) B23K 11/14 (2006.01) B23K 11/30 (2006.01) B28B 7/00 (2006.01) B28B 7/34 (2006.01) B28B 17/00 (2006.01) E01C 5/06 (2006.01)
Patent
CA 2144145
The process described serves for producing a steel mold for concrete paving setts with so-called spacers, the individual mold chambers being cut out of a steel plate by flame cutting. Grooves (3) are formed in the mold walls by means of the flame-cutting jet, by way of an arcuate movement of the same, said grooves defining the cross section of the spacers. The upper section of the grooves (3) is filled in that closure platelets (4), of which the cross section corresponds approximately to the cross section of the groove (3) and which exhibit welding projections (8) on their side directed towards the groove (3), are welded into the groove (3) by projec- tion welding. The closure platelets (4) consist of a strain-hardened unalloyed or low-alloyed steel.
Fetherstonhaugh & Co.
Rampf Formen Gmbh
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