Method of fabricating double pipe

Details Method of fabricating double pipe Method of fabricating double pipe

1989-11-03

1991-10-08

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Assembling or joining

294695, 29424, 29458, 138148, 156292, 181228, B21D 3900

Patent

active

050541854

ABSTRACT:
There is disclosed a method of fabricating a double pipe capable of attenuating vibration. The pipe can be used in an automobile exhaust system. The method is initiated with forming a coating either on the outer surface of an inner pipe or on the inner surface of the outer pipe. The coating is made from an epoxy resin, an acrylic resin, or other resin. The inner pipe is inserted into the outer pipe, and then they are brought into intimate contact with each other via the coating to couple them together. The coupled pipes are heated beyond 400.degree. C.

REFERENCES:
patent: 3068563 (1962-12-01), Reverman
patent: 3132979 (1964-05-01), Bickerdike et al.
patent: 3133612 (1964-05-01), Sailler
patent: 3209856 (1965-10-01), Saunders
patent: 4028785 (1977-06-01), Jackson et al.

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