CN105313398A - Rose gold plating layer and preparation method therefor - Google Patents
Rose gold plating layer and preparation method therefor Download PDFInfo
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- CN105313398A CN105313398A CN201410367655.2A CN201410367655A CN105313398A CN 105313398 A CN105313398 A CN 105313398A CN 201410367655 A CN201410367655 A CN 201410367655A CN 105313398 A CN105313398 A CN 105313398A
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Abstract
The invention provides a rose gold plating layer for overcoming the problem that in the prior art, after surface abrasion, the rose gold clad layer is relatively great in chromatic aberration and low in appearance quality. The rose gold plating layer comprises a titanium carbonitride layer and a copper-gold alloy layer positioned on the surface of the titanium carbonitride layer, wherein the chroma system coordinate LAB values of the carbon titanium nitride layer are as follows: the L value is 68-70, the A value is 9-12 and the B value is 15-18; the chroma system coordinate LAB values of the copper-gold alloy layer are as follows: the L value is 84-87, the A value is 9-12, and the B value is 15-18. Meanwhile, the invention further discloses a preparation method for the rose gold plating layer. The chromatic aberration of the titanium carbonitride layer and the copper-gold alloy layer of the rose gold plating layer is small. Even if the copper-gold alloy layer on the surface is abraded, the appearance quality of the rose gold plating layer is not obviously affected.
Description
Technical field
The present invention relates to a kind of handware surface rose gold coating and preparation method thereof.
Background technology
In order to attractive in appearance, the surface of the handwares such as current existing a lot of clock and watch, mobile phone, jewellery adopts the mode of plating, Vacuum Deposition one deck gold on the shell of mobile phone, wrist-watch.
At ornaments with in billon series, rose gold (RoseGold is called for short RG) the magnificent elegance of Yin Seze, becomes the trend fashion being popular for the outer clock and watch of Now Domestic, jewellery industry.Electroplated rose golden cladding material is also subject to liking of consumers in general.Tradition water Gold-plating technique because there is serious problem of environmental pollution, started gradually replace by vacuum metallizing technology.Vacuum Deposition technology not only environmental friendliness, and the coating purity adopting this technology to prepare is high, thickness is homogeneous, compactness and good with basal body binding force.
Generally, the existing rose gold decorative layer of product surface has one deck bottom and surface layer, copper-the gold alloy layer of surface layer to be color be rose golden, the TiCN layer of bottom to be color be partially yellow rose golden, therefore, there is notable difference in the color of surface layer and bottom, aberration is large, after surface layer damages, expose bottom, produce obvious aberration, cause product appearance quality low.
Summary of the invention
The problem that technical problem to be solved by this invention is the larger aberration of generation after wearing and tearing for rose gold coating surface in prior art, exterior quality is low, provides a kind of rose gold coating.
It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme:
A kind of rose gold coating is provided, comprises titanium carbonitride layer and the copper-gold alloy layer being positioned at described titanium carbonitride layer surface; The colourity system coordinate LAB value of described titanium carbonitride layer is: L value is 68 ~ 70; A value is 9 ~ 12; B value is 15 ~ 18; The colourity system coordinate LAB value of described copper-gold alloy layer is: L value is 84 ~ 87; A value is 9 ~ 12; B value is 15 ~ 18.
In above-mentioned rose gold coating provided by the invention, the aberration of the titanium carbonitride layer of bottom and the copper-gold alloy layer on top layer is little, when top layer copper-gold alloy layer occur wearing and tearing and expose the titanium carbonitride layer of bottom at fray time, the color no significant difference of fray and other complete area, the exterior quality that ensure that rose gold coating of high degree.
Meanwhile, present invention also offers the preparation method of above-mentioned rose gold coating, comprising:
S1, be fixed in the coating chamber of vaccum ion coater by matrix, coating chamber is heated to 180 ~ 220 DEG C and is evacuated to 8 × 10
-3below Pa;
S2, pass into the argon gas of 1-10Pa, aura cleaning 8 ~ 10min under the bias voltage of-500 ~-600V;
S3, bias voltage be-200 ~-400V, vacuum is 3 × 10
-1under the condition of below Pa, bombardment titanium target 2min;
S4, bias voltage be-100 ~-150V, vacuum is 6 × 10
-1under the condition of below Pa, continue to pass into nitrogen and acetylene 15min, form titanium carbonitride layer at matrix surface; The flow velocity of described nitrogen is 300 ~ 400sccm, and the flow velocity of described acetylene is 20 ~ 35sccm;
S5, bias voltage be-100 ~-150V, vacuum is 3.5 × 10
-1under the condition of below Pa, take copper-gold alloy as target, deposition 10min, forms copper-gold alloy layer on titanium carbonitride layer surface; In described copper-gold alloy layer, the content of gold is 74 ~ 85wt%, and the content of copper is 26 ~ 15wt%.
In the rose gold coating prepared by method provided by the invention, the aberration of the titanium carbonitride layer of bottom and the copper-gold alloy layer on top layer is little, effectively can ensure the exterior quality of rose gold coating.
Simultaneously, the copper-gold alloy layer as top layer that above-mentioned preparation method is formed has excellent antioxidant corrosive nature, the wear phenomenon that rose gold coating occurs in Long-Time Service process can be reduced further, very favourable to the exterior quality improving rose gold coating further.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Rose gold coating provided by the invention comprises titanium carbonitride layer and is positioned at the copper-gold alloy layer on described titanium carbonitride layer surface; The colourity system coordinate LAB value of described titanium carbonitride layer is: L value is 68 ~ 70; A value is 9 ~ 12; B value is 15 ~ 18; The colourity system coordinate LAB value of described copper-gold alloy layer is: L value is 84 ~ 87; A value is 9 ~ 12; B value is 15 ~ 18.
Rose gold coating provided by the invention is formed at the ornaments such as clock and watch, jewellery surface, plays decoration function.According to the present invention, above-mentioned rose gold coating comprises titanium carbonitride layer and is positioned at the copper-gold alloy layer on described titanium carbonitride layer surface.
When above-mentioned rose gold coating be formed at ornaments on the surface time, above-mentioned titanium carbonitride layer is directly attached to ornaments surface, and copper-gold alloy layer is positioned on titanium carbonitride layer.
In the present invention, the colourity system coordinate LAB value of above-mentioned titanium carbonitride layer is: L value is 68 ~ 70; A value is 9 ~ 12; B value is 15 ~ 18.
As is known in the art, above-mentioned colourity system coordinate LAB is derived from Lab colour model, and it is made up of brightness (L) and a about color, b tri-key elements.L is brightness value, represents brightness; A is red scale value, represents the scope from carmetta to green; B is yellow value degree, represents the scope from yellow to blueness.
According to the present invention, the colourity system coordinate LAB value of above-mentioned copper-gold alloy layer is: L value is 84 ~ 87; A value is 9 ~ 12; B value is 15 ~ 18.
In rose gold coating provided by the invention, the colourity system coordinate LAB value of titanium carbonitride layer and copper-gold alloy layer closely or consistent, after long-time use causes the normal wear of rose gold coating, the copper-gold alloy layer of surface layer is damaged, when breakage exposes the titanium carbonitride layer of bottom, there is no obvious color distortion between the copper-gold alloy layer in titanium carbonitride layer and other regions, substantially increase the exterior quality of this rose gold coating.
According to the present invention, in described copper-gold alloy layer, the content of gold is 74 ~ 85wt%, and the content of copper is 26 ~ 15wt%.
In use, the copper-gold alloy layer as surface layer is directly exposed in air rose gold coating, and with the oxygen in air and contact with moisture, and can be rubbed frequently, these factors all can accelerate the wearing and tearing of rose gold coating.Found by great many of experiments, when copper in copper-gold alloy layer and golden content are respectively in above-mentioned scope, better can ensure that the colourity system coordinate LAB value of copper-gold alloy layer meets aforementioned range on the one hand, copper-gold alloy layer is better coordinated with titanium carbonitride layer, improves the exterior quality of rose gold coating; On the other hand, the antioxygenic property of copper-gold alloy layer can be improved.
According to the present invention, the thickness of described titanium carbonitride layer can change in a big way, such as, can be 0.3 ~ 1.5 μm, and those skilled in the art can select the thickness that titanium carbonitride is write according to actual conditions and adjust.
Same, the thickness of described copper-gold alloy layer can change in a big way, can be 0.03 ~ 0.3 μm.
Meanwhile, present invention also offers the preparation method of above-mentioned rose gold coating, comprising:
S1, be fixed in the coating chamber of vaccum ion coater by matrix, coating chamber is heated to 180 ~ 220 DEG C and is evacuated to 8 × 10
-3below Pa;
S2, pass into the argon gas of 1 ~ 10Pa, aura cleaning 8min ~ 10min under the bias voltage of-500 ~-600V;
S3, bias voltage be-200 ~-400V, vacuum is 3 × 10
-1under the condition of below Pa, bombardment titanium target 2min;
S4, bias voltage be-100 ~-150V, vacuum is 6 × 10
-1under the condition of below Pa, continue to pass into nitrogen and acetylene 15min, form titanium carbonitride layer at matrix surface; The flow velocity of described nitrogen is 300 ~ 400sccm, and the flow velocity of described acetylene is 20 ~ 35sccm;
S5, bias voltage be-100 ~-150V, vacuum is 3.5 × 10
-1under the condition of below Pa, take copper-gold alloy as target, deposition 10min, forms copper-gold alloy layer on titanium carbonitride layer surface; In described copper-gold alloy target, the content of gold is 74 ~ 85wt%, and the content of copper is 26 ~ 15wt%.
In the present invention, in step S1, matrix is ornaments parts.The material of the present invention to matrix does not have particular/special requirement, can for conventional various materials, and such as described basic material is selected from stainless steel, copper, copper alloy, kirsite, silver or tin.
As known in the art, because matrix surface is contaminated and have an impact to coating process for avoiding, reduce plated film quality, usually need carry out plated film pre-treatment to base material.Described plated film pre-treatment comprises through 80 DEG C of high temperature paraffin removals, oil removing.
According to the present invention, the colourity system coordinate LAB value of the titanium carbonitride layer formed at substrate surface by above-mentioned steps S1-S4 is: L value is 68 ~ 70; A value is 9 ~ 12; B value is 15 ~ 18.Its color can be better close or consistent with the color of the copper-gold alloy layer of required preparation.
Further, as above-mentioned steps S5, by the content ratio relation of copper and gold in adjustment copper-gold alloy target, the colourity system coordinate LAB value of the copper-gold alloy layer prepared can be made on the one hand to be: L value is 84 ~ 87; A value is 9 ~ 12; B value is 15 ~ 18; On the other hand, the copper-gold alloy layer formed by above-mentioned target has excellent antioxidant anticorrosive performance.
The colourity system coordinate LAB value of the above-mentioned titanium carbonitride layer for preparing and copper-gold alloy layer all obtains by existing various testing of equipment, such as, CM-700d type spectrophotometric color measurement instrument (Japanese Konica Minolta) can be adopted to test and obtain.
According to the present invention, under preferable case, also comprise before S5 after described step S4 and coating chamber is evacuated to 10
-3pa; Then the argon gas of 1-10Pa is passed into, aura cleaning 8 ~ 10min under the bias voltage of-500 ~-600V.
In the present invention, for the thickness of above-mentioned titanium carbonitride layer and copper-gold alloy layer, can change in a big way, under preferable case, the thickness of described titanium carbonitride layer is 0.3 ~ 1.5 μm; The thickness of described copper-gold alloy layer is 0.03 ~ 0.3 μm.The thickness of above-mentioned titanium carbonitride layer and copper-gold alloy layer is by regulating the condition of above-mentioned preparation technology to change, and concrete control method is known in those skilled in the art.
By the following examples the present invention is further detailed.
Embodiment 1
The present embodiment is for illustration of rose gold coating disclosed by the invention and preparation method thereof.
1, the preparation of titanium carbonitride layer
316 stainless steel substrates (12mm × 25mm) after polishing are through 80 DEG C of high temperature paraffin removals, except the pre-treatment of wet goods plated film, and upper extension puts into vaccum ion coater after drying, and coating chamber is heated to 200 DEG C and is evacuated to 10
-3pa.According to striking mode; the working gas Ar (purity 99.99%) of 2Pa is passed into by tantalum pipe; connect striking power supply; under the bias voltage of-500V; the cation of Ar gas constantly bombards tantalum pipe makes its temperature reach 2000-2400K, and continue 8min, tantalum pipe produces thermionic emission; abnormal glow discharge changes arc discharge at once, under electric field and focusing magnetic field effect, draw beam-plasma.Bias voltage be-300V, vacuum is 3 × 10
-1under the condition of Pa, through 90 ° of deflections, electron beam is got on the Ti target of focusing, continues 2min.Bias voltage be-100V, vacuum is 6 × 10
-1under the condition of Pa, pass into appropriate N with 300sccm and 25sccm flow velocity successively
2gas (purity 99.99%) and C
2h
2gas (purity 99.99%), continue 15min, Ti melts evaporation rapidly under highdensity beam bombardment, Ti steam, N steam and C steam are ionized in the plasma, firmly titanium carbonitride layer is formed with larger energy deposition at surface of the work under the effect of back bias voltage, workpiece is taken out after cooling, and adopt CM-700d type spectrophotometric color measurement instrument (Japanese Konica Minolta) to measure the brightness value (L*) of its color, red scale value (a*) and yellow value degree (b*), and insert table 1.
2, the preparation of copper-gold alloy layer
316 stainless steel substrates plating titanium carbonitride layer qualified for performance are put into vaccum ion coater again, and coating chamber is evacuated to 10
-3pa; according to striking mode; the working gas Ar of 2Pa is passed into by tantalum pipe; connect striking power supply; the cation of Ar gas constantly bombards tantalum pipe makes its temperature reach 2000-2400K, and continue 8min, tantalum pipe produces thermionic emission; abnormal glow discharge changes arc discharge at once, under the effect of electric field and focusing magnetic field, draw beam-plasma.Bias voltage be-100V, vacuum is 3.5 × 10
-1under the condition of Pa, through 90 ° of deflections, electron beam gets to the copper-gold alloy target (Au85% of focusing, Cu15%) on, continue 10min, metallic element (Au on copper-gold alloy target, Cu etc.) under highdensity beam bombardment, melt evaporation rapidly, Au, the metallic element steams such as Cu are ionized in the plasma, firmly copper-gold alloy layer is formed with larger energy deposition at surface of the work under the effect of back bias voltage, workpiece is taken out after cooling, and adopt CM-700d type spectrophotometric color measurement instrument (Japanese Konica Minolta) to measure the brightness value (L*) of its color, red scale value (a*) and yellow value degree (b*), simultaneously, the antioxygenic property of copper test gold alloy layer, and insert table 1.
Embodiment 2
The present embodiment is for illustration of rose gold coating disclosed by the invention and preparation method thereof.
1, the preparation of titanium carbonitride layer
316 stainless steel substrates (12mm × 25mm) after polishing are through 80 DEG C of high temperature paraffin removals, except the pre-treatment of wet goods plated film, and upper extension puts into vaccum ion coater after drying, and coating chamber is heated to 200 DEG C and is evacuated to 10
-3pa.According to striking mode; the working gas Ar (purity 99.99%) of 8Pa is passed into by tantalum pipe; connect striking power supply; under the bias voltage of-500V; the cation of Ar gas constantly bombards tantalum pipe makes its temperature reach 2000-2400K, and continue 8min, tantalum pipe produces thermionic emission; abnormal glow discharge changes arc discharge at once, under electric field and focusing magnetic field effect, draw beam-plasma.Bias voltage be-200V, vacuum is 3 × 10
-1under the condition of Pa, through 90 ° of deflections, electron beam is got on the Ti target of focusing, continues 2min.Bias voltage be-100V, vacuum is 6 × 10
-1under the condition of Pa, pass into appropriate N with 320sccm and 25sccm flow velocity successively
2gas (purity 99.99%) and C
2h
2gas (purity 99.99%), continue 15min, Ti melts evaporation rapidly under highdensity beam bombardment, Ti steam, N steam and C steam are ionized in the plasma, firmly titanium carbonitride layer is formed with larger energy deposition at surface of the work under the effect of back bias voltage, workpiece is taken out after cooling, and adopt CM-700d type spectrophotometric color measurement instrument (Japanese Konica Minolta) to measure the brightness value (L*) of its color, red scale value (a*) and yellow value degree (b*), and insert table 1.
2, the preparation of copper-gold alloy layer
316 stainless steel substrates plating titanium carbonitride layer qualified for performance are put into vaccum ion coater again, and coating chamber is evacuated to 10
-3pa; according to striking mode; the working gas Ar of 8Pa is passed into by tantalum pipe; connect striking power supply, under the bias voltage of-500V, the cation of Ar gas constantly bombards tantalum pipe makes its temperature reach 2000-2400K; continue 8min; tantalum pipe produces thermionic emission, and abnormal glow discharge changes arc discharge at once, under the effect of electric field and focusing magnetic field, draw beam-plasma.Bias voltage be-100V, vacuum is 3.5 × 10
-1under the condition of Pa, through 90 ° of deflections, electron beam gets to the copper-gold alloy target (Au80% of focusing, Cu20%) on, continue 10min, metallic element (Au on copper-gold alloy target, Cu etc.) under highdensity beam bombardment, melt evaporation rapidly, Au, the metallic element steams such as Cu are ionized in the plasma, firmly copper-gold alloy layer is formed with larger energy deposition at surface of the work under the effect of back bias voltage, workpiece is taken out after cooling, and adopt CM-700d type spectrophotometric color measurement instrument (Japanese Konica Minolta) to measure the brightness value (L*) of its color, red scale value (a*) and yellow value degree (b*), simultaneously, the antioxygenic property of copper test gold alloy layer, and insert table 1.
Embodiment 3
The present embodiment is for illustration of rose gold coating disclosed by the invention and preparation method thereof.
1, the preparation of titanium carbonitride layer
316 stainless steel substrates (12mm × 25mm) after polishing are through 80 DEG C of high temperature paraffin removals, except the pre-treatment of wet goods plated film, and upper extension puts into vaccum ion coater after drying, and coating chamber is heated to 180 DEG C and is evacuated to 8 × 10
-3pa.According to striking mode; the working gas Ar (purity 99.99%) of 10Pa is passed into by tantalum pipe; connect striking power supply; under the bias voltage of-550V; the cation of Ar gas constantly bombards tantalum pipe makes its temperature reach 2000-2400K, and continue 10min, tantalum pipe produces thermionic emission; abnormal glow discharge changes arc discharge at once, under electric field and focusing magnetic field effect, draw beam-plasma.Bias voltage be-200V, vacuum is 3 × 10
-1under the condition of Pa, through 90 ° of deflections, electron beam is got on the Ti target of focusing, continues 2min.Bias voltage be-150V, vacuum is 6 × 10
-1under the condition of Pa, pass into appropriate N with 350sccm and 20sccm flow velocity successively
2gas (purity 99.99%) and C
2h
2gas (purity 99.99%), continue 15min, Ti melts evaporation rapidly under highdensity beam bombardment, Ti steam, N steam and C steam are ionized in the plasma, firmly titanium carbonitride layer is formed with larger energy deposition at surface of the work under the effect of back bias voltage, workpiece is taken out after cooling, and adopt CM-700d type spectrophotometric color measurement instrument (Japanese Konica Minolta) to measure the brightness value (L*) of its color, red scale value (a*) and yellow value degree (b*), and insert table 1.
2, the preparation of copper-gold alloy layer
316 stainless steel substrates plating titanium carbonitride layer qualified for performance are put into vaccum ion coater again, and coating chamber is evacuated to 10
-3pa; according to striking mode; the working gas Ar of 10Pa is passed into by tantalum pipe; connect striking power supply, under the bias voltage of-550V, the cation of Ar gas constantly bombards tantalum pipe makes its temperature reach 2000-2400K; continue 10min; tantalum pipe produces thermionic emission, and abnormal glow discharge changes arc discharge at once, under the effect of electric field and focusing magnetic field, draw beam-plasma.Bias voltage be-120V, vacuum is 3.5 × 10
-1under the condition of Pa, through 90 ° of deflections, electron beam gets to the copper-gold alloy target (Au80% of focusing, Cu20%) on, continue 10min, metallic element (Au on copper-gold alloy target, Cu etc.) under highdensity beam bombardment, melt evaporation rapidly, Au, the metallic element steams such as Cu are ionized in the plasma, firmly copper-gold alloy layer is formed with larger energy deposition at surface of the work under the effect of back bias voltage, workpiece is taken out after cooling, and adopt CM-700d type spectrophotometric color measurement instrument (Japanese Konica Minolta) to measure the brightness value (L*) of its color, red scale value (a*) and yellow value degree (b*), simultaneously, the antioxygenic property of copper test gold alloy layer, and insert table 1.
Embodiment 4
The present embodiment is for illustration of rose gold coating disclosed by the invention and preparation method thereof.
1, the preparation of titanium carbonitride layer
316 stainless steel substrates (12mm × 25mm) after polishing are through 80 DEG C of high temperature paraffin removals, except the pre-treatment of wet goods plated film, and upper extension puts into vaccum ion coater after drying, and coating chamber is heated to 220 DEG C and is evacuated to 8 × 10
-3pa.According to striking mode; the working gas Ar (purity 99.99%) of 3Pa is passed into by tantalum pipe; connect striking power supply; under the bias voltage of-600V; the cation of Ar gas constantly bombards tantalum pipe makes its temperature reach 2000-2400K, and continue 9min, tantalum pipe produces thermionic emission; abnormal glow discharge changes arc discharge at once, under electric field and focusing magnetic field effect, draw beam-plasma.Bias voltage be-400V, vacuum is 6 × 10
-2under the condition of Pa, through 90 ° of deflections, electron beam is got on the Ti target of focusing, continues 2min.Bias voltage be-120V, vacuum is 6 × 10
-1under the condition of Pa, pass into appropriate N with 400sccm and 35sccm flow velocity successively
2gas (purity 99.99%) and C
2h
2gas (purity 99.99%), continue 15min, Ti melts evaporation rapidly under highdensity beam bombardment, Ti steam, N steam and C steam are ionized in the plasma, firmly titanium carbonitride layer is formed with larger energy deposition at surface of the work under the effect of back bias voltage, workpiece is taken out after cooling, and adopt CM-700d type spectrophotometric color measurement instrument (Japanese Konica Minolta) to measure the brightness value (L*) of its color, red scale value (a*) and yellow value degree (b*), and insert table 1.
2, the preparation of copper-gold alloy layer
316 stainless steel substrates plating titanium carbonitride layer qualified for performance are put into vaccum ion coater again, and coating chamber is evacuated to 10
-3pa; according to striking mode; the working gas Ar of 3Pa is passed into by tantalum pipe; connect striking power supply, under the bias voltage of-600V, the cation of Ar gas constantly bombards tantalum pipe makes its temperature reach 2000-2400K; continue 9min; tantalum pipe produces thermionic emission, and abnormal glow discharge changes arc discharge at once, under the effect of electric field and focusing magnetic field, draw beam-plasma.Bias voltage be-150V, vacuum is 3.5 × 10
-1under the condition of Pa, through 90 ° of deflections, electron beam gets to the copper-gold alloy target (Au74% of focusing, Cu26%) on, continue 10min, metallic element (Au on copper-gold alloy target, Cu etc.) under highdensity beam bombardment, melt evaporation rapidly, Au, the metallic element steams such as Cu are ionized in the plasma, firmly copper-gold alloy layer is formed with larger energy deposition at surface of the work under the effect of back bias voltage, workpiece is taken out after cooling, and adopt CM-700d type spectrophotometric color measurement instrument (Japanese Konica Minolta) to measure the brightness value (L*) of its color, red scale value (a*) and yellow value degree (b*), simultaneously, the antioxygenic property of copper test gold alloy layer, and insert table 1.
Comparative example 1
This comparative example is used for comparative illustration rose gold coating disclosed by the invention and preparation method thereof.
Rose gold coating is prepared according to the method for embodiment 1, unlike, in copper-gold alloy target, gold content is 90%, and copper content is 10%.
Comparative example 2
This comparative example is used for comparative illustration rose gold coating disclosed by the invention and preparation method thereof.
Rose gold coating is prepared according to the method for embodiment 1, unlike, in copper-gold alloy target, gold content is 70%, and copper content is 30%.
Comparative example 3
This comparative example is used for comparative illustration rose gold coating disclosed by the invention and preparation method thereof.
Rose gold coating is prepared according to the method for embodiment 1, unlike, in copper-gold alloy target, gold content is 65%, and copper content is 35%.
In embodiment 1-4, comparative example 1-3 and existing product rose gold coating, each coating color, colourity system coordinate LAB value, aberration and antioxygenic property test result are see table 1.
Table 1
As can be seen from the test result of table 1, the color aberration in the rose gold coating that method provided by the invention prepares between titanium carbonitride layer and copper-gold alloy layer is little, and the copper-gold alloy layer antioxygenic property on top layer is high.
The test result of comparative example 1-4 and comparative example 1-3 is known, and when in copper-gold alloy layer, during copper too high levels, the oxidation resistance of copper-gold alloy layer significantly declines; And when copper content is too low, copper-gold alloy layer color will be caused to change, and the aberration between the titanium carbonitride layer of bottom strengthens.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a rose gold coating, is characterized in that, comprises titanium carbonitride layer and the copper-gold alloy layer being positioned at described titanium carbonitride layer surface;
The colourity system coordinate LAB value of described titanium carbonitride layer is: L value is 68 ~ 70; A value is 9 ~ 12; B value is 15 ~ 18;
The colourity system coordinate LAB value of described copper-gold alloy layer is: L value is 84 ~ 87; A value is 9 ~ 12; B value is 15 ~ 18.
2. rose gold coating according to claim 1, is characterized in that, in described copper-gold alloy layer, the content of gold is 74 ~ 85wt%, and the content of copper is 26 ~ 15wt%.
3. rose gold coating according to claim 1 and 2, is characterized in that, the thickness of described titanium carbonitride layer is 0.3 ~ 1.5 μm.
4. rose gold coating according to claim 1 and 2, is characterized in that, the thickness of described copper-gold alloy layer is 0.03 ~ 0.3 μm.
5. the preparation method of rose gold coating as claimed in claim 1, is characterized in that, comprising:
S1, be fixed in the coating chamber of vaccum ion coater by matrix, coating chamber is heated to 180 ~ 220 DEG C and is evacuated to 8 × 10
-3below Pa;
S2, pass into the argon gas of 1 ~ 10Pa, aura cleaning 8min ~ 10min under the bias voltage of-500 ~-600V;
S3, bias voltage be-200 ~-400V, vacuum is 3 × 10
-1under the condition of below Pa, bombardment titanium target 2min;
S4, bias voltage be-100 ~-150V, vacuum is 6 × 10
-1under the condition of below Pa, continue to pass into nitrogen and acetylene 15min, form titanium carbonitride layer at matrix surface; The flow velocity of described nitrogen is 300 ~ 400sccm, and the flow velocity of described acetylene is 20 ~ 35sccm;
S5, bias voltage be-100 ~-150V, vacuum is 3.5 × 10
-1under the condition of below Pa, take copper-gold alloy as target, deposition 10min, forms copper-gold alloy layer on titanium carbonitride layer surface; In described copper-gold alloy target, the content of gold is 74 ~ 85wt%, and the content of copper is 26 ~ 15wt%.
6. preparation method according to claim 5, is characterized in that, also comprises coating chamber is evacuated to 10 after described step S4 before S5
-3below Pa; Then the argon gas of 1 ~ 10Pa is passed into, aura cleaning 8 ~ 10min under the bias voltage of-500 ~-600V.
7. the preparation method according to claim 5 or 6, is characterized in that, also comprises and carry out plated film pre-treatment to base material before described step S1.
8. preparation method according to claim 7, is characterized in that, described plated film pre-treatment comprises through 80 DEG C of high temperature paraffin removals, oil removing.
9. preparation method according to claim 7, is characterized in that, described basic material is selected from stainless steel, copper, copper alloy, kirsite, silver or tin.
10. preparation method according to claim 5, is characterized in that, the thickness of described titanium carbonitride layer is 0.3 ~ 1.5 μm; The thickness of described copper-gold alloy layer is 0.03 ~ 0.3 μm.
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| CN109072405A (en) * | 2016-03-31 | 2018-12-21 | 西铁城时计株式会社 | The decoration element and its manufacturing method of oriental cherry pink |
| WO2020007356A1 (en) * | 2018-07-06 | 2020-01-09 | 深圳市联合蓝海科技开发有限公司 | Noble metal product with coating on surface and preparation method therefor |
| CN111394703A (en) * | 2020-04-30 | 2020-07-10 | 森泰纳米科技(深圳)有限公司 | Vacuum-plated super nanometer functional gradient rose gold decorative composite layer and preparation method thereof |
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| CN111678870A (en) * | 2020-06-01 | 2020-09-18 | 肇庆宏旺金属实业有限公司 | Online detection method and system for continuous vacuum coating of stainless steel coil |
| CN111826696A (en) * | 2020-07-15 | 2020-10-27 | 九牧厨卫股份有限公司 | Black surface composite coating and preparation method thereof |
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