B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/979
B29C 65/68 (2006.01) B29C 65/02 (2006.01) B29C 65/18 (2006.01) F28F 1/00 (2006.01) F28F 21/06 (2006.01)
Patent
CA 1267516
ABSTRACT OF THE DISCLOSURE The purpose of the process and the apparatus of the invention is to face weld extruded thermoplastic moldings the faces of which lie in a plane and the face ends of which are juxtaposed in a coplanar fashion. The faces are pressed against a heatable and coolable plate in which grooves are formed corresponding to the cross-section of the face. The floor of the grooves is heated up to or above the melting temperature of the plastic. The entry of the grooves is thermally insulated from the floor region and, if necessary, can be cooled. When the faces are sunk into the grooves, the plastic is melted. The plastic melt, rising in the groove, is cooled until solid in the thermally insulated entry region. Following the welding in the floor region, the floor region is cooled below the melting temperature, and the welded bundle is separated from the plate. 219/rc
511826
Groß Heinz
Gross Heinz
Pohlmann Klaus Ernst
Schikowsky Hartmut
Gross Cornelia
Gross Heinz
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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