KR101462623B1 - Surface treatment method for base metal - Google Patents

Surface treatment method for base metal Download PDF

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KR101462623B1
KR101462623B1 KR1020140012765A KR20140012765A KR101462623B1 KR 101462623 B1 KR101462623 B1 KR 101462623B1 KR 1020140012765 A KR1020140012765 A KR 1020140012765A KR 20140012765 A KR20140012765 A KR 20140012765A KR 101462623 B1 KR101462623 B1 KR 101462623B1
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metal
metal substrate
passivation
passive
solution
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KR1020140012765A
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Korean (ko)
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윤주식
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주식회사 위스코하이텍
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Priority to PCT/KR2015/001086 priority patent/WO2015119409A1/en

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/02—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using non-aqueous solutions

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

The present invention is applied to an inner and outer material, an outer case, a housing, a body, and the like of a metal such as a mobile phone, a notebook, and various electronic devices, automobiles, (Heterogeneous) metal protection, including a passive layer, on the surface of an easily oxidizable metal base such as magnesium alloy, magnesium alloy, aluminum, aluminum alloy, titanium, titanium alloy, copper alloy, copper alloy, Layer, a coating film protective layer, and the like, to improve the durability, the corrosion resistance, and the coating film adhesion.
According to the present invention, there is provided a method for surface treatment of a metal substrate comprising at least one of magnesium, a magnesium alloy, aluminum, and an aluminum alloy, wherein the passive solution of an alcohol- or ketone- Giving step; Forming a passive layer (passivation layer) on the surface of the metal substrate by reaction with the passive solution in a state in which the metal substrate is immersed in the alcoholic or ketonic passivation solution heated to the passivation heat temperature; And the like.

Description

TECHNICAL FIELD [0001] The present invention relates to a surface treatment method for a metal substrate,

The present invention relates to an internal material, an exterior material, a case, a housing, a body, and the like (hereinafter, referred to as "metallic material ") made of metal such as a car, an aircraft, (Hereinafter referred to as " metal "), and more specifically, magnesium, magnesium alloy, aluminum, aluminum alloy, titanium, titanium alloy, copper or copper alloy, A metal protective layer or a protective layer of a coating film is formed on the surface of a base material made of a metal which is easy to oxidize such as a metal, And to improve durability, corrosion resistance, film adhesion, and the like together with imparting.

Recently, magnesium or magnesium alloy materials have been widely used in various fields such as automobiles, airplanes, and ships as well as computers, notebooks, cameras, and mobile phones, including various electronic products and electronic devices, because they are lightweight and excellent in electromagnetic shielding and heat dissipation.

However, in order to put materials such as magnesium and magnesium alloy having high oxidation resistance and low corrosion resistance into practical use, it is necessary to perform surface treatment separately to ensure durability for various internal parts and external parts.

On the other hand, the 'processing solution for magnesium alloy, the surface treatment method, and the magnesium alloy substrate' (referred to as Document 1) disclosed in Korean Patent Publication No. 2002-0077150 (October 11, 2002) It is known.

In reference to the above-mentioned document 1, it has been found that a magnesium alloy containing a phosphoric acid ion and a permanganate ion as a means for imparting paint adhesion, corrosion resistance and rust preventive property to a magnesium alloy and having a pH of 1.5 to 7 Liquid and surface treatment methods.

However, in such a conventional method, since the chemical liquor must be in a pH range of 2.0 to 4.0, which is a strong acidic treatment condition, if the pH of the chemical liquor exceeds 7, for example, And the reproducibility reliability of the coating is deteriorated, so that sufficient corrosion resistance and film adhesion can not be obtained.

In order to solve the above-mentioned problems, the present invention provides a method of manufacturing a semiconductor device, which comprises a step of forming a metal protective layer, a passivation layer, Which can improve durability, corrosion resistance, coating film adhesion, and the like through a surface treatment for forming a layer or the like.

Another object of the present invention is to provide a metal base which can improve the metal texture by forming a different kind of metal protective layer on the surface of the metal base of the present invention.

As a method for solving the above-mentioned problems of the present invention, there is a method of surface-treating a metal substrate made of any one of magnesium, a magnesium alloy, aluminum, and an aluminum alloy, And a step of heating the passivation solution to a passive processing heat temperature.

Then, a passive layer (passive layer) is formed on the surface of the metal substrate by reaction with the passive solution in a state where the metal base is immersed in the alcoholic or ketonic based passive solution heated to the passivation heat temperature It is characterized by the step of giving.

According to another aspect of the present invention, there is provided a method for heating a passive solution of an alcohol-based or ketone-based system to a passive heat treatment temperature.

Then, a passive layer (passive layer) is formed on the surface of the metal substrate by reaction with the passive solution in a state where the metal base is immersed in the alcoholic or ketonic based passive solution heated to the passivation heat temperature It is characterized by the step of giving.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As described above, the present invention provides a surface treatment for forming a passivation layer, a different kind of metal protection layer, a coating film protective layer, and the like on the surface of a substrate made of a metal that is easily oxidized Thereby improving the durability, corrosion resistance and film adhesion.

In addition, the metal substrate of the present invention provides another effect of further increasing the metal texture by forming a different kind of metal protective layer on the surface thereof.

FIG. 1 is a view showing a first embodiment of the present invention, which schematically shows the process of surface treatment of a metal substrate according to the present invention.
FIG. 2 is a schematic view showing a second embodiment of the present invention.
FIG. 3 is a view showing a third embodiment of the present invention, which schematically shows a process of surface-treating a metal substrate according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the preferred embodiments of the present invention, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of example at least one embodiment, And should not be construed as limiting the scope of the present invention.

It is to be noted that the same reference numerals are used to denote the same elements in the drawings of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings shown in FIGS. 1 to 3 attached hereto.

The metal base 100 according to the present invention can be used as an internal or external material provided in metal of a car, an aircraft, a ship or the like (hereinafter referred to as a "subject product") including a mobile phone or a notebook computer and various electronic devices, (Hereinafter referred to as "metal substrate"), which is made of aluminum, aluminum alloy, titanium, titanium, etc., including magnesium and magnesium alloys, The metal substrate 100 of the present invention is characterized in that it includes a material such as an alloy, a copper alloy, a copper alloy, silver, a silver alloy (hereinafter referred to as "metal" It should not be limited to metal materials.

In the present invention, the metal substrate 100 may be formed by various methods such as die casting, injection, extrusion, rolling, pressing, or etching using the above-mentioned metal material It is characterized by.

In addition, the metal substrate 100 according to the present invention can be made of a heterogeneous material including a passivation layer (also referred to as "passivation") 120a and 120b for the surfaces 100a and 100b The metal substrate 100 may be subjected to a surface treatment to form metal protection layers 130a and 130b and coating layers 130-1a and 130-1b to enhance the metal texture Corrosion resistance, flame retardancy, rust resistance, and film adhesion, as well as to improve durability, corrosion resistance, corrosion resistance, and film adhesion.

In addition, when the metal base 100 according to the present invention is applied to the above-mentioned subject product, the surface 100a refers to the outer surface, that is, the outer surface side, and the other surface 100b Means the inner side of the product to be treated.

In the present invention, the metal substrate 100 may be made of magnesium (Mg) alone or may be formed of a metal such as Al, Cu, Ti, Ag, Ni, Si, Cr, Mn, Mo, Zn, Zr, Fe, Ca , Li, and Be may be included.

In the present invention, the metal substrate 100 may be made of aluminum (Al) alone or may be a metal such as Mg, Cu, Ti, Ag, Ni, Si, Cr, Mn, Mo, Zn, Zr, Fe, Ca , Li, and Be may be included.

In addition, in the present invention, the metal substrate 100 may be made of copper (Cu) alone, or may contain at least one element selected from the group consisting of Mg, Al, Ti, Ag, Ni, Si, Cr, Mn, Mo, Zn, , Li, and Be may be included.

In the present invention, the metal substrate 100 may be made of titanium (Ti) alone, or may be made of a metal such as Mg, Al, Cu, Ag, Ni, Si, Cr, Mn, Mo, Zn, Zr, Fe, Ca , Li, and Be may be included.

In the present invention, the metal substrate 100 may be made of Ag alone, or may be made of a metal such as Mg, Al, Cu, Ti, Ni, Si, Cr, Mn, Mo, Zn, Zr, Fe, Ca , Li, and Be may be included.

Further, in the present invention, when the thickness t1 of the metal base 100 is too thin, it is difficult to process the thin film through etching or the like, 120a, and 120b. On the other hand, if the thickness t1 is made too thick, the workability is easy, but the weight and the volume become large. In addition, factors that unnecessarily increase the material cost .

Accordingly, it is preferable that the thickness t1 of the metal substrate 100 is selected according to the purpose and use of the metal substrate 100, as well as the chemical and physical properties and workability of the metal substrate 100.

The reliability test conditions for the metal substrate 100 according to the present invention include a constant temperature and humidity test conducted at a temperature of 60 DEG C and a humidity of 90% for 240 hours, a temperature of -40 DEG C for 30 minutes to 80 DEG C for 30 minutes The surface treatment technology of the surface treatment technique is important because it is required to be free from deformation or deterioration in a cold temperature thermal shock test carried out over 100 cycles to a long period of time and a salt water test carried out for 5 hours to 120 hours of brine.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in FIGS. 1 to 3, a metal substrate 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. The metal substrate 100 includes, for example, a burner, a heater, An alcohol or ketone-based passivation solution 200 may be heated (or referred to as "heating") to passivation treatment heat temperature T1 in the solution tank 300 by a separate heating means. ).

Then, the metal substrate 100 is immersed in the alcohol-based or ketone-based passive solution 200 heated to the passivation heat temperature T 1 (this is also referred to as "dipping & (Passivation layers) 120a and 120b on the surfaces 100a and 100b of the metal substrate 100 by reacting with the passivation layers 200 and 200, respectively.

1, the surfaces 100a and 100b of the metal substrate 100 on which the passivation layers 120a and 120b are formed are protected, and furthermore, the durability and the corrosion resistance are improved, A metal protective layer 130a having different conductivity from that of the metal substrate 100 is formed on at least one of the passivation layers 120a and 120b or on both sides 120a and 120b of the passivation layers 120a and 120b, 130b may be formed on the substrate 130. The different types of metal protection layers 130a, 130b may be formed in one or more layers depending on the type and characteristics of the product to be processed.

The dissimilar metal protective layers 130a and 130b may be formed of a conductive metal such as Al, Cu, Ti, Ag, Ni, Si, or the like when the metal substrate 100 is formed of magnesium (Mg) (Hereinafter also referred to as a "vacuum atmosphere") of 10 -3 to 10 -6 Torr by mixing any one or more of Cr, Mn, Mo, Zn, Zr, Fe, Ca, ) In the vapor phase.

When the metal substrate 100 is made of aluminum (Al) or an aluminum alloy, the dissimilar metal protective layers 130a and 130b may be formed of a conductive metal such as Mg, Cu, Ti, Ag, (Hereinafter also referred to as a "vacuum atmosphere") of 10 -3 to 10 -6 Torr by mixing any one or more of Cr, Mn, Mo, Zn, Zr, Fe, Ca, ) In the vapor phase.

As the deposition means for forming the hetero-type metal protective layers 130a and 130b, a sputtering method using a plasma, an electron beam deposition method, a thermal deposition method, Ion plating deposition, etc. However, this should not be limited to the above-mentioned examples.

The metal protective layers 130a and 130b may be formed of a conductive metal such as Al, Cu, Ti, Ag, Ni, and Si when the metal substrate 100 is formed of magnesium (Mg) And at least one selected from Cr, Mn, Mo, Zn, Zr, Fe, Ca, Li and Be is mixed and formed by wet plating in air.

When the metal substrate 100 is formed of aluminum (Al) or an aluminum alloy, the metal protective layers 130a and 130b may be formed of a conductive metal such as Mg, Cu, Ti, Ag, Ni, Si And at least one selected from Cr, Mn, Mo, Zn, Zr, Fe, Ca, Li and Be is mixed and formed by wet plating in air.

2, the upper protective layer 130-2a and the upper protective layer 130-2b are formed of a coating having a thickness of 0.2 to 20 占 퐉 on the dissimilar metal protective layers 130a and 130b, 130-2b so as to protect the metal substrate 100 from strong ultraviolet rays and prevent the scratches of the surfaces 100a, 100b, and furthermore, to provide durability, Corrosion resistance and anti-rust property.

3, the present invention is a method for protecting the surfaces 100a and 100b of the metal base 100 on which the passive layers 120a and 120b are formed, (Coating film) protective layers 130-1a and 130-1b each having a thickness of 0.2 to 20 占 퐉 are formed on at least one 120a or both 120a and 120b in a single layer or multiple layers As described above, it is possible to increase the metal texture of the metal substrate 100, improve the durability, corrosion resistance and rustproofing property of the metal substrate 100, and further improve the strength of the metal substrate 100 100 and the scratches of the surfaces 100a, 100b.

On top of the coating layers 130-1a and 130-1b are formed top coat protective layers 130-2a and 130-2b with a thickness of 0.2 to 20 μm, So as to protect the metal substrate 100 from strong ultraviolet rays and to prevent scratching of the surfaces 100a and 100b and to further improve durability, Thereby improving the rust resistance and the like.

The coating film protective layers 130-1a and 130-1b and the protective film layers 130-2a and 130-2b of the present invention may be transparent or colored resin Color) resin "), and the like.

The coating layers 130-1a and 130-1b and the upper coating layers 130-2a and 130-2b of the present invention can be formed by applying various colors to the metal substrate 100 (Paint) composed of a white or colored pigment material or the like as a means for imparting or enhancing a metallic texture.

The pigment material may include at least one or more mineral inorganic pigments such as gold, silver, copper, nickel, zinc, titanium, iron, chromium and the like in an environmentally friendly manner to allow the metal substrate 100 to have resistance It is desirable to have a weather resistance which prevents the phenomenon of discoloration or discoloration.

For example, among the pigment materials, white pigments include TiO 2 (titanium dioxide) having a chemical property stable and non-toxic, particularly a refractive index and coloring power against an acid or ancholy, and a refractive index ranging from 2.50 to 2.75, It should not be limited to the cases listed above.

Of the pigment materials, ZrO 2 (zirconia), ZnO (zinc oxide), BiOCl (bismuth oxide chloride) having a refractive index of 1.8 or more, SiO 2 (silicon dioxide) having a refractive index of 1.8 or less, MgF 2 (magnesium fluoride) Al 2 O 2 (alumina), which should not be limited to the examples listed above.

Among the above-mentioned colored pigments, various colors such as BLACK, RED, BLUE, PINK, VIOLET, YELLOW and the like which are harmless to the human body including carbon black and chromium oxide green, And the like.

As the means for forming the coating layers 130-1a and 130-1b and the upper coating layers 130-2a and 130-2b, It is preferable to uniformly form the coating film by a coating method selected from an electrodeposition coating method, a synthetic resin coating method, a powder coating method, and an electrostatic coating method, but this is not limited to the above-mentioned examples It should not.

In addition, in the present invention, when the thicknesses of the coating film protective layers 130-1a and 130-1b and the top film protective layers 130-2a and 130-2b are set to 0.2 μm or less, However, since the thickness of the coating film is too thin, the protective property may be deteriorated. On the other hand, when the thickness of the coating film is thicker than 20 탆, durability and corrosion resistance are excellent, There may be a concern.

Therefore, the thicknesses of the coating film protective layers 130-1a and 130-1b and the top coating protective layers 130-2a and 130-2b are not limited to the thicknesses of the metal substrate 100, It is preferable to suitably select and form the layer so as not to be too thin or thick in the range of 0.2 to 20 mu m depending on the purpose, use, product to be applied, and the like, including chemical and physical characteristics.

In the present invention, the passivation layers 120a and 120b formed on the surfaces 100a and 100b of the metal substrate 100 have a thickness of 0.2 to 20 μm, , 130-1b) of 0.005 to 0.5 times the thickness, that is, 0.001 to 10 mu m.

In other words, when the thickness of the passivation layers 120a and 120b is made as thin as 0.001 μm or less, the present invention is advantageous in that the surface 100a and 100b of the metal substrate 100 are less damaged, The corrosion resistance may be deteriorated because the coating film (or the oxide film) is too thin. On the other hand, when the thickness of the coating film (or the oxide film) There is a possibility of serious damage.

Therefore, in the present invention, the thicknesses of the passivation layers 120a and 120b are determined by the passive process heat temperature T1 and the passive process solution temperature, which are heated in the solution tank 300, (200), that is, the kind of the reactant, the immersion time, and the like, it is preferable that the thickness is set to 0.001 to 10 mu m.

In the present invention, the passive solution 200 included in the means for forming the passive layers 120a and 120b on the surfaces 100a and 100b of the metal base 100, that is, Is a volatile alcohol-based material obtained by mixing one or more selected from among ethanol, methanol, isopropyl alcohol, butyl alcohol, and octyl alcohol. .

In addition, the passive solution 200 may be a volatile ketone system mixed with one or more selected from the group consisting of acetone, methyl ethyl ketone, and methyl isobutyl ketone ≪ / RTI > material.

In the present invention, the passivation heat temperature T1 included in the means for forming the passivation layers 120a and 120b on the surfaces 100a and 100b of the metal substrate 100 is set to The passive solution 200 of the filled alcohol or ketone material is heated to a temperature ranging from 40 ° C to a boiling point (also referred to as a "boiling point"), 120a, and 120b of the first embodiment.

The passivation process heat temperature T1 may be obtained by heating the passive solution 200 of an alcohol or ketone based material filled in the solution tank 300 to 40 to 220 ° C, 120a, and 120b of the first embodiment.

For example, when the passivation heat temperature T1 is set to 40 ° C or less, the reaction of the passive solution 200 is lowered, and the passive layers 120a and 120b are formed on the surfaces 100a and 100b of the metal substrate 100 If the passivation heat temperature (T1) is set to a boiling point or 220 ° C or higher, evaporation of the passive solution (200) composed of an alcoholic or ketonic volatile material may occur, This is economically disadvantageous because loss occurs, and there is a possibility that uniform passivation layers 120a and 120b may not be formed.

In other words, the boiling points of the alcohol-based reactants included in the passivation solution 200 are 78.3 ° C for ethanol, 64.65 ° C for methanol, 82 ° C for isopropyl alcohol, 117.7 ° C for butyl alcohol, The boiling point of the ketone-based reactant contained in the passive solution 200 is 56.5 ° C .; the methyl ethyl ketone is 79.6 ° C; and the methyl isobutyl ketone is 115.9 ° C. Therefore, in the present invention, The passivation heat temperature (T1) is suitably selected in the range of 40 ° C. to the boiling point or in the range of 40 ° C. to 220 ° C., depending on the type of the reactant, It would be desirable to give.

In addition, in the present invention, the passive layer 120a, 120b, which is included in the means for forming the passive layers 120a, 120b on the surfaces 100a, 100b of the metal base 100, The time for immersing the metal substrate 100 in the metal substrate 200 may vary depending on the type of the alcohol or ketone-based reactant mentioned above, but it is characterized in that the metal substrate 100 is immersed in the range of 1 second to 30 minutes.

For example, when the time for immersing the metal substrate 100 in the passive solution 200 is set to be too short as 1 second or less, the reaction of the passive solution 200 is lowered and the surfaces 100a and 100b The passive layer 120a or 120b may not be densely formed on the passive layer 120a or 120b. On the other hand, when the passive layer 120a or 120b is set longer than 30 minutes, , 120b, that is, the process time for the passivation process becomes unnecessarily long, which may cause an economical waste. Therefore, it is preferable that the present invention is suitably selected within the range of 1 second to 30 minutes.

The passivation layers 120a and 120b of the present invention thus formed are improved in corrosion resistance to the metal substrate 100 and are formed on the coating layer based on the coating including the different kinds of metal protection layers 130a and 130b (Coating film) protective layers 130-1a and 130-1b, a top film protective layer 130-2a and 130-2b, and the like, That is, the adhesion of the coating film.

Meanwhile, in the present invention, before the metal substrate 100 is immersed in the solution tank 300 filled with the passive solution 200, a sufficient degreasing and cleaning process is performed to sufficiently remove impurities adhering to the surfaces 100a and 100b. It would be desirable to remove it.

In other words, when foreign substances are present on the surfaces 100a and 100b of the metal base 100, the passive solution 200 is not uniformly applied to the passive solution 200 due to the surface tension, so that the passive and stable passive layers 120a and 120b It is possible to have a bad influence on the formation of the film.

Subsequently, the passivation layers 120a and 120b are formed by immersing the metal substrate 100 in the passive solution 200 for 1 second to 30 minutes as described above, and then the passive layers 120a and 120b are immersed in the solution bath 300 And then taking out and drying.

For example, the passive solution 200 may be naturally dried at room temperature because the passive solution 200 is a volatile material. However, it may be preferable to dry the passive solution 200 by infrared or hot air at a temperature of 20 to 60 ° C.

Alternatively, in the present invention, the passivation layers 120a and 120b may be formed by immersing the metal substrate 100 in the passive solution 200 for 1 second to 30 minutes, then taken out of the solution bath 300, And further includes a heat treatment step carried out at 200 ° C so that the passivation layer 120a or 120b, that is, the oxide film, can be fixed or stabilized together with the drying of the metal substrate 100 Lt; / RTI >

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention.

Therefore, the technical scope of the present invention should be defined by the claims of the present invention, rather than being limited to those described in various exemplary embodiments as mentioned above.

100: metal substrate
100a, 100b: surface
120a, 120b: passivation layer
130a, 130b: a heterogeneous metal protective layer
130-1a and 130-1b: a coating film protective layer
130-2a, and 130-2b: an upper coating film (upper coating film)
200: Passive solution
300: solution tank

Claims (17)

(100) comprising at least one of magnesium, a magnesium alloy, aluminum, and an aluminum alloy,
Heating a passive solution 200 selected from the alcohol or ketone system to a passivation heat temperature T1 ranging from 40 ° C to a boiling point;
The metal substrate 100 is immersed in the passive solution 200 heated to the passivation heat temperature T1 and reacted with the passive solution 200 to form the surfaces 100a and 100b of the metal substrate 100 (Passivation layers) 120a and 120b on the first passivation layer 120a;
Forming different kinds of metal protective layers 130a and 130b having different conductivity from the metal base 100 on at least one 120a or both 120a and 120b of the passive layers 120a and 120b And a surface treatment method of the metal substrate. delete delete delete The method of claim 1, wherein the dissimilar metal protective layers (130a, 130b) are formed of Al, Cu, Ti, Ag, Ni, Si, Cr, Mn, Mo , Zn, Zr, Fe, Ca, Li, or Be is mixed and formed in a vacuum atmosphere of 10 -3 to 10 -6 Torr. The method of claim 1, wherein the dissimilar metal protective layers (130a, 130b) are formed of a metal such as Mg, Cu, Ti, Ag, Ni, Si, Cr, Mn, Mo , Zn, Zr, Fe, Ca, Li, or Be is mixed and formed in a vacuum atmosphere of 10 -3 to 10 -6 Torr. The method of claim 1, wherein the dissimilar metal protective layers (130a, 130b) are formed of Al, Cu, Ti, Ag, Ni, Si, Cr, Mn, Mo , Zn, Zr, Fe, Ca, Li and Be, and is formed by wet plating in air. The method of claim 1, wherein the dissimilar metal protective layers (130a, 130b) are formed of a metal such as Mg, Cu, Ti, Ag, Ni, Si, Cr, Mn, Mo , Zn, Zr, Fe, Ca, Li and Be, and is formed by wet plating in air. The method of claim 1, wherein the upper protective layer (130-2a, 130-2b) is formed on the dissimilar metal protective layer (130a, 130b) with a thickness of 0.2 to 20 占 퐉 Wherein the step of applying the surface treatment comprises the step of applying the surface treatment. delete delete delete The method as claimed in claim 1, wherein the metal substrate (100) is immersed in a volatile alcohol-based or ketone-based passivation solution (110) for 1 second to 30 minutes Processing method. delete delete 2. The method of claim 1, wherein the alcohol-based passive solution 200 in which the metal substrate 100 is immersed is selected from the group consisting of ethanol, methanol, isopropyl alcohol, and butyl alcohol ), Octyl alcohol (Octyl Alcohol). The surface treatment method of a metal base according to claim 1, 2. The method of claim 1, wherein the ketone-based passivation solution 200 on which the metal substrate 100 is immersed is selected from the group consisting of acetone, methyl ethyl ketone, methyl isobutyl ketone, Wherein the surface of the metal substrate is a volatile material formed by mixing at least one selected from the group consisting of silicon oxide and silicon oxide.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006063392A (en) * 2004-08-26 2006-03-09 Seiko Epson Corp Oxide film formation method, oxide film, parts and electronic equipment
KR20090036133A (en) * 2006-07-25 2009-04-13 바스프 에스이 Method of passivating metallic surfaces by means of copolymers having phosphoric and/or phosphonic acid groups

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9824223D0 (en) * 1998-11-05 1998-12-30 British Aerospace Adhesive bonding process for aluminium and/or aluminium alloy
AU2003292789A1 (en) * 2003-02-07 2004-08-30 Honda Motor Co., Ltd. Method for passivating stainless steel product and method for producing stainless steel separator for fuel cell
JP4808374B2 (en) * 2003-11-13 2011-11-02 富士通株式会社 Surface treatment method for metal molded products
KR100943840B1 (en) * 2007-07-31 2010-02-24 (주) 태양기전 Method of treating surface of magnesium product

Patent Citations (2)

* Cited by examiner, † Cited by third party
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JP2006063392A (en) * 2004-08-26 2006-03-09 Seiko Epson Corp Oxide film formation method, oxide film, parts and electronic equipment
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