Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1985-12-13
1987-10-13
Wityshyn, Michael
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
100 93P, 100 93RP, 100154, 156 622, 156324, 156359, 156378, 156555, 1565835, 165 97, 264 406, 425144, 425371, B30B 506, B30B 1534, B32B 3120
Patent
active
046996761
ABSTRACT:
A process of heating parts of a double band press used in pressing a material moving through the press involves heating a heat transfer medium and flowing it through the press parts in a first direction and, at specific time intervals, reversing the direction of flow so that it passes in the opposite direction. By periodically reversing the direction of flow, differential thermal expansion is avoided within the press parts. In a device for carrying out the proces, a supply line and a return line are connected to a device for heating the return heat transfer medium. A reversing valve is connected to the supply and return line so that the direction of flow of the heat transfer medium through the press parts can be reversed for providing a balanced heating effect.
REFERENCES:
patent: 1951999 (1934-03-01), Sprague
patent: 3390719 (1968-07-01), McCallister
patent: 3461953 (1969-08-01), Costello et al.
patent: 3568595 (1971-03-01), Bunting et al.
patent: 3583467 (1971-06-01), Bennet
patent: 4336096 (1982-06-01), Dedekind
patent: 4508670 (1985-04-01), Janke
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