Title:
COPPER MEMBER HAVING HYDROPHILICITY AND WATER REPELLENCY, METHOD FOR MANUFACTURING THE SAME, AND HEAT TRANSFER PIPE
Document Type and Number:
Japanese Patent JP2003001746
Kind Code:
A
Abstract:
To provide a copper member having durable super-hydrophilicity and super-water repellency on its surface, a method for manufacturing the same and a heat transfer pipe.
An aluminum oxide hydrate layer 101 is formed on the outer surface of the copper member 100 having hydrophilicity and transferring heat between the outer surface and inner surface thereof by dissolving aluminum or an aluminum alloy in a heated alkali aqueous solution and immersing the copper member 100 in this aqueous solution.
Inventors:
MUROI KATSUMI
MATSUO KAZUYA
UMEDA TOMOMI
MATSUO KAZUYA
UMEDA TOMOMI
Application Number:
JP2001194189A
Publication Date:
January 08, 2003
Filing Date:
June 27, 2001
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B05D3/10; B05D5/00; B05D7/14; B05D7/24; B32B9/00; B32B15/04; C09K3/00; C09K3/18; F28F13/18; F28F19/04; (IPC1-7): B32B9/00; B05D3/10; B05D5/00; B05D7/14; B05D7/24; B32B15/04; C09K3/00; C09K3/18; F28F13/18; F28F19/04
Attorney, Agent or Firm:
Katsuo Ogawa (2 outside)