Heat pipe and method for sealing the heat pipe

Details Heat pipe and method for sealing the heat pipe Heat pipe and method for sealing the heat pipe

2006-05-15

2009-06-09

Bochna, David E (Department: 3679)

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

Reexamination Certificate

active

07543380

ABSTRACT:
A heat pipe includes a body with working fluid contained therein and a sealing structure forming on an end of the body. The sealing structure includes a single layer sealing portion formed at a distal end thereof. The sealing structure further comprises a two layer sealing portion connecting the single layer sealing portion to the body. The single layer and two layer sealing portions and the body are made of the same metallic material. A method for sealing the heat pipe, includes the steps of: (1) providing a metallic pipe with an end sealed and an opposite open portion; (2) pressing the open portion of the pipe to form a two layer sealing portion; (3) melting at least one part of the two layer sealing portion to form a single layer sealing portion.

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