Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1980-11-18
1983-06-28
Gallagher, John J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
296231, 296232, 296234, 156157, 156292, 1563042, 1563046, 1563082, 1563096, 1563099, 156311, 156312, 156322, 156497, 156498, 156502, 156535, 1565832, 264237, 264248, 264345, 264348, 428 35, 428 58, 429176, B29C 1900
Patent
active
043903843
ABSTRACT:
A method and apparatus is disclosed for bonding two pieces of thermoplastic material to one another. The method includes the steps of heating the edges of the plastic materials to be joined to at least their fusing temperatures and then forcing the heated edge portions against one another to thereby form a bonded junction. A bead is formed along at least one edge of the junction of the plastic materials as a result of the pressure of the two plastic materials bearing against one another. The welded junction is heated, optionally at elevated pressure, to at least its fusion temperature and is then rapidly cooled. The resulting weld has a high impact and dielectric strength and has a smooth overall appearance.
REFERENCES:
patent: 2520737 (1950-08-01), Romeyn et al.
patent: 3276941 (1966-10-01), Burns
patent: 3384527 (1968-05-01), Fener
patent: 3429854 (1969-02-01), Siggel et al.
patent: 3458380 (1969-07-01), Kipp
patent: 4118265 (1978-10-01), Harsigg
Gallagher John J.
Hardigg Industries Inc.
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