Corrosion-resistant hydrophilic multi-layer film forming method by plasma
A plasma and corrosion-resistant technology, applied in the coating, metal material coating process, gaseous chemical plating, etc., can solve the problems of no corrosion resistance, heat exchanger heat sink corrosion, hydrophilic film shedding, etc., to achieve Effect of improving corrosion resistance and hydrophilicity
Inactive Publication Date: 2006-05-17
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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Problems solved by technology
Through the above electroplating treatment, the service life is extended to a certain extent, but the corrosion resistance is still not satisfactory to the user, and it will be corroded after a period of time
[0006] In addition, although there are many technologies on the surface treatment of the material surface of the heat sink and then the hydrophilic treatment of the polymer film on the surface of the material, the heat exchanger heat sink made of this treated material will still be corroded , the hydrophilic film falls off
Method used
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[0029] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0030] figure 1 It is a schematic diagram of the device structure for forming a multilayer film with corrosion resistance and hydrophilicity in the present invention. As shown in the figure, an upper electrode 102 is fixed on the upper side inside the box-type engineering chamber 101 , and a lower electrode 103 is fixed on the lower side of the upper electrode 102 .
[0031] An uncoiler 105 is provided in the uncoiler 106 at the front end of the engineering room 101 , and the uncoiler 105 supplies a strip-shaped aluminum material 104 to the inside of the engineering room 101 . There is a winding chamber 108 at the rear end of the engineering chamber 101, and a winding machine 107 is arranged in the winding chamber 108, and the winding machine 107 winds the material 104 coming out of the engineering chamber 101. The exit portion of the unwindin...
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The invention discloses a method for forming a corrosion-resistant and hydrophilic multilayer film using plasma. An upper electrode and a lower electrode are arranged inside an engineering room, and the upper electrode and the lower electrode are used as negative electrodes. Pass between the upper electrode and the lower electrode, the material as the positive electrode is located inside the vacuum space, inject the mixed gas of hexamethyldisiloxane and helium into the vacuum space, and at the same time, apply to the material and the upper electrode and the lower electrode DC power supply to form plasma. Use plasma to form a corrosion-resistant layer on the surface of the material. Then, the material that has formed the corrosion-resistant layer is put back into the vacuum space, and the mixed gas of hydrocarbon series gas and helium is injected. Simultaneously, a DC power is applied to form plasma. The plasma is used to form a hydrophilic layer on the surface of the material. Thus, a multilayer film having corrosion resistance and hydrophilicity is formed. The aluminum heat sink of the air conditioner can improve the corrosion resistance and hydrophilicity of the material through the above method.
Description
technical field [0001] The invention relates to a method for forming a corrosion-resistant and hydrophilic multilayer film by using plasma. Background technique [0002] Usually, there is a heat exchanger inside the casing of the outdoor unit of the air conditioner, and the heat exchanger is composed of a steel support frame, an aluminum heat sink, and a copper pipe. [0003] The heat exchanger of the above outdoor unit requires strong heat exchange capability. Since the heat exchanger of the outdoor unit is mainly installed outdoors, it is in contact with rainwater and wind, and requires corrosion resistance and other requirements. [0004] The most widely used heat sink material is aluminum. Although aluminum is easy to process, corrosion-resistant, and has good heat exchange capacity, due to the high temperature, humidity, and high salt content in the coastal areas of Southwest Asia or Southeast Asia, the cooling fins of the heat exchanger for outdoor units are still eas...
Claims
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IPC IPC(8): C23C16/513C23C16/40C23C16/42
Inventor 吳定根郑永万尹东植
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD