Method for lining of inner surface of a pipe

Details Method for lining of inner surface of a pipe Method for lining of inner surface of a pipe

1981-03-05

1982-04-27

Beck, Shrive P.

Coating processes

Interior of hollow article coating

Removing excess coating material

118317, 118DIG10, 427236, 427421, B05D 102, B05D 722

Patent

active

043271324

ABSTRACT:
Water mains, water pipes of housing-development apartments or water pipes of factories can be lined by this method. At first epoxy resin solutions A and B are mixed. The epoxy resin paint is atomized by a rapid air stream. The gaseous mixture is still accelerated by another air stream and blown into a pipe to be lined. The mixture fluid adheres to the inner surface of the pipe and forms a lining layer from the inlet to the outlet of the pipe in succession. When the lining process finishes, the supply of epoxy resin paint is stopped but the air is still blown in to dry the paint quickly for a short time. The residual paint exhausted from the outlet is withdrawn and revived to liquid. This method is useful for the pipes with a diameter larger than 1/4 inch.

REFERENCES:
patent: 1146791 (1915-07-01), Greenfield
patent: 1758810 (1930-05-01), Austin et al.
patent: 2331824 (1943-10-01), Buckingham
patent: 3974306 (1976-08-01), Inamura et al.
patent: 3982050 (1976-09-01), Kato et al.
patent: 4057664 (1977-11-01), Audykowski

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