Composite pipe, process for producing the same, and heat...

Details Composite pipe, process for producing the same, and heat... Composite pipe, process for producing the same, and heat...

A - Human Necessities

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189/45

A47L 9/24 (2006.01) B21C 23/22 (2006.01) B21C 37/06 (2006.01) F16L 58/08 (2006.01) F16L 58/18 (2006.01) F28D 15/02 (2006.01)

Patent

CA 1237683

ABSTRACT A composite pipe is proposed which is comprised of an aluminum pipe and a lead pipe formed in the aluminum pipe in direct contact with the inner wall of the aluminum pipe. The composite pipe is produced by supplying a lead pipe to a continuous aluminum extrusion machine which can extrude while enveloping a long object, to form an aluminum pipe on the outer periphery of the lead pipe. A heat pipe using the composite pipe is also proposed. -24-

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