Tube-coating method and apparatus therefor

Details Tube-coating method and apparatus therefor Tube-coating method and apparatus therefor

1985-12-18

1986-11-11

Combs, E. Michael

Metal working

Plural diverse manufacturing apparatus including means for...

Binding or covering and cutting

29460, 295274, 72 46, 72 51, B21B 1500, B23K 120

Patent

active

046213996

ABSTRACT:
An in-line, continuous, roll-forming tube mill production line. The line includes a supply station for continuously supplying steel strip, a roll-forming station for forming the strip into a tubular configuration, and a welding station for joining by welding the edges of the strip. The line also has at least one station for performing a process which calls for the application of a liquid to the exterior of the tubing such as cleaning, rinsing or applying a coating. A preheating station is provided for preheating of the tubing by induction and a powder coating station applies a plastic coating or a metallically pigmented plastic coating to the exterior of the tubing, the powder coating station having a chamber and means for selectively isolating the tubing from chamber. Finally, the tube mill production line includes a heating station for baking and/or curing of the powder coating. An improved method of forming and coating tubing using a continuous, in-line, roll-forming tube mill production line is also disclosed.

REFERENCES:
patent: 3559280 (1971-02-01), Mailhiot et al.
patent: 3616983 (1971-11-01), Kamimura et al.
patent: 3667095 (1972-06-01), Ostrowski
patent: 3965551 (1976-06-01), Ostrowski
patent: 4441238 (1984-04-01), Hijuelos et al.
"Use of Non-Metallic Pearlescent Pigments to Achieve Metallic Appearance", C. J. Rieger, The Mearl Corporation, May 9, 1979.

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