Method for Manufacturing Ultra-Hydrophilic Thin Film Coated Metal Film Coated Metal Product
Inactive Publication Date: 2007-12-13
LG ELECTRONICS INC
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- Abstract
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- Application Information
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Benefits of technology
[0012] The present invention is achieved to solve the above problems. An object of the present invention is to provide a method for manufacturing an ultra-hydrophilic thin film coated metal product having excellent hydrophilic performance, aging property and corrosion resistance, and an ultra-hydrophilic thin film coated metal product.
[0013] Another object of the present invention is to easily produce ultra-hydrophilic thin films on an industrial production scale, by forming anticorrosive and ultra-hydrophilic thin films on a sheet-shaped metal substrate and mechanically processing the metal substrate into a target shape.
Problems solved by technology
Accordingly, power of a fan must be increased to supply the same flux, which results in large power consumption.
However, Cr+6 will be prevented since 2006 due to environmental problems.
In the preparation of the PCM, tetrachloroethane (TCE) inevitably used to wash aluminum also causes environmental contamination.
Also, the volatilized materials displease people.
As a result, hydrophilicity improvement effects obtained by etching the natural oxide film are deteriorated.
Thus, the titanium dioxide thin film cannot be uniformly deposited on the whole surface of the fin, which deteriorates hydrophilic arid aging properties.
Furthermore, productivity for direct application to the industrial production is not attained.
Method used
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[0047] Preparation of Plasma Coating Film
[0048] After 10−3 Torr of vacuum was formed in the coating chambers 2 by using the vacuum pumps, the metal sheets 8 were connected to anodes and maintained at a predetermined distance (30 to 150 mm) from the electrodes 6 and 6a, and the heater coils 42 and 42a of the bubblers 40 were electrically heated (80 to 120° C.) to bubble the liquid-phase precursors. The hot wires 64, 64a, 68 and 68a coiled around the outer walls of the tubes 60, 60a, 66 and 66a were electrically heated (80 to 120° C.) to prevent the titanium precursor and the silicon precursor from being condensed on the inner walls of the tubes 60, 60a, 66 and 66a. The gas-phase precursor gas, the carrier gas and the reactive gas were injected into the coating chambers 2 through the tubes, and discharged in the up / down direction of the metal sheet 8. When a target vacuum degree was obtained by the injected gas, power was turned on to generate the plasma by the mixed gas between the ...
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Abstract
The present invention discloses a method for manufacturing am ultra-hydrophilic thin film coated metal product, and an ultra-hydrophilic thin film coated metal product. In order to easily manufacture an air conditioning metal material having excellent hydrophilic performance, aging property and corrosion resistance on an industrial production scale, an HMDSO anticorrosive thin film is selectively formed on both surfaces of a metal substrate sheet, and an ultra-hydrophilic Ti—O—C group compound thin film is coated on the anticorrosive thin film. The metal substrate sheet is mechanically processed into a target shape.
Description
TECHNICAL FIELD [0001] The present invention relates to a method for manufacturing an ultra-hydrophilic thin film coated metal product, and an ultra-hydrophilic thin film coated metal product. BACKGROUND ART [0002] Metal materials having hydrophilic surface layers on their surfaces have been efficiently used in the whole industrial fields, which will now be explained by using a heat exchanger as an example. [0003] A heat exchanger exchanging heat by making two fluids having different temperatures directly or indirectly contact each other has been widely used in various industrial fields, especially for heating, air conditioning, power generation, waste heat recovery and chemical processes. [0004] An air conditioning heat exchanger forms a fin that is an enlarged surface at the air side to improve heat transmission. When the air having humidity passes through the fin in the heat exchange operation, heat transmission occurs by low temperature refrigerants supplied into a tube. When a ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C23C14/14C23C14/16C23C14/24C23C16/30C23C16/44C23C16/455C23C16/50C23C16/54F28F13/18
CPCC23C16/30C23C16/4557C23C16/50C23C16/545Y10T428/265F28F2245/02Y10T428/12667Y10T428/12986Y10T428/12736F28F13/18Y10T428/31678
InventorJEONG, YOUNG-MANOH, JUNG-GEUNJUN, HYUN-WOOLEE, SU-WONYOUN, DEOK-HYUN
OwnerLG ELECTRONICS INC