Process for producing a metal-glass glaze composite pipe

Details Process for producing a metal-glass glaze composite pipe Process for producing a metal-glass glaze composite pipe

1990-10-16

1992-07-14

Beck, Shrive

Coating processes

With pretreatment of the base

Metal base

118315, 239 79, 4273764, 4274194, 427423, 427424, 427425, B05D 312

Patent

active

051301652

ABSTRACT:
A process for producing a metal-glass glaze composite pipe including removing corrosion from a metal pipe, simultaneously rotating and translating the pipe through a protective cover operating under a substantially non-oxidating environment and containing an induction pre-heating device and a pair of spray guns. The pre-heating device heats the pipe to a first predetermined temperature while the first and second spray guns apply first and second layers of hot-sprayed, flame-liquefied powdered glaze material to the pipe. An induction post-heater is provided to ensure the quality of seal effected by the layers of glaze material.

REFERENCES:
patent: 4382811 (1983-05-01), Luscher et al.
patent: 4490411 (1984-12-01), Feder
patent: 4740388 (1988-04-01), Nakashima
patent: 4871114 (1989-10-01), Kenderi
patent: 5019429 (1991-05-01), Moskowitz et al.
Schrewelius, N. G., "A Method of Applying a Heat-Resistant Surface by Flame Spraying," Chem. Abstract No. 44807h (3/1966).
Ingham, H. S. and A. P. Shepard, "Flame Spray Handbook," vol. 2, Metco, Inc. (New York, 1964).

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