Process for producing heat pipe

Details Process for producing heat pipe Process for producing heat pipe

1986-12-05

1988-08-02

Davis, Jr., Albert W.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Liquid fluent heat exchange material

165133, 427229, 427239, F28D 1502, F28F 1902

Patent

active

047608781

ABSTRACT:
A process for producing a heat pipe including the steps of treating the inner surface of a steel container with an aqueous solution of a vanadate with heating, and enclosing in the container a working liquid prepared by adding an alkalinizing pH adjusting agent to pure water and having an adjusted pH of 8 to 12. When the container inner surface is treated with the aqueous vanadate solution with heating, a protective layer covering the inner surface is formed. The working liquid, when in the range of 8 to 12 in pH, maintains the protective layer in a stable state over a prolonged period of time.

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