Coating processes – Interior of hollow article coating
Patent
1994-10-28
1998-10-13
Bell, Janyce
Coating processes
Interior of hollow article coating
427239, 427292, 4273855, 4273881, 4274301, 427435, B05D 722
Patent
active
058209310
ABSTRACT:
Coating for the tube beds and heat exchanger coolant tubes extending from them, especially steam condensers, based on hardening plastic mixtures, obtainable by cleaning the surfaces provided for coating using an abrasive; closing the tube inlets and outlets with removable plugs; applying at least one layer of a hardening plastic coating on the tube bed; allowing the coating to harden so that additional mechanical processing can ensue, and processing the surface; removing the plugs from the tube inlets and outlets as well as applying at least one layer of a hardening plastic coating at least in the inlet area of the coolant tube, and allowing it to harden, coating of the coolant tubes by timed applications being done reactively to the tube bed coating and the coolant tube coating exhibiting in comparison to the tube bed coating a greater elasticity having an elongation at tear at least 2% greater in accordance with DIN 53152 with respect to the elongation at tear of the tube bed coating, and process for coating tube beds and coolant tubes extending from them.
REFERENCES:
patent: 3689311 (1972-09-01), Loeffler et al.
patent: 4795662 (1989-01-01), Kreiselmaier
Bell Janyce
Dipl.-Ing. Ernst Kreiselmaier Wasser-und Metall-Chemie KG
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