CN108914059A - Coated objects made from precious metals of surface band and preparation method thereof - Google Patents
Coated objects made from precious metals of surface band and preparation method thereof Download PDFInfo
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- CN108914059A CN108914059A CN201810739546.7A CN201810739546A CN108914059A CN 108914059 A CN108914059 A CN 108914059A CN 201810739546 A CN201810739546 A CN 201810739546A CN 108914059 A CN108914059 A CN 108914059A
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- noble metal
- metal matrix
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- gold
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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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
Abstract
The present invention relates to precious metal surface coating field, a kind of coated objects made from precious metals of surface band and preparation method thereof is disclosed；Wherein, which includes：Noble metal matrix and the PVD layers and transparent film layer being in turn attached on the noble metal matrix, the noble metal are gold or silver.The objects made from precious metals surface is formed by that film layer is relatively thin, and different colors can be presented, and improves the single gold of noble metal matrix, and the change of the color will not influence the quality of noble metal matrix；Then the water coating preferably comprised can increase the glossiness of film layer；And can to make to be formed by film layer more stable for transparent film layer, increases wearability, and the color to be formed can be made more longlasting colour-fast.
Description
Technical field
The present invention relates to precious metal surface coating fields, and in particular to a kind of coated objects made from precious metals of surface band and its
Preparation method.
Background technique
Gold product color is vivid, and stability is good, usually as jewellery, extensively gets consumer reception.Gold product at present
Production technology mainly includes casting wax, reverse mould, surface deburring Shape correction.In order to improve the glossiness on gold product surface, usually
It is handled using surface of the electric plating method to gold product.
CN106521594A discloses the manufacturing method and its equipment that a kind of karat gold is processed into gold true qualities, previously prepared head
Adorn semi-finished product；Plating processing is carried out to jewellery semi-finished product, the color for keeping it external is reduced to the true qualities of gold；To the head after plating
Decorations semi-finished product are surface-treated, and jewellery finished product is formed.But using electric plating method in gold product surface coating, gold system
The film layer on product surface is unstable, is easily peeled off and falls off.
CN107675136A discloses a kind of method of workpiece surface physical vapour deposition (PVD) (PVD) plated film, and workpiece to be plated is put
Enter coating chamber to vacuumize, heat, leads to argon gas later, ion bombardment processing is carried out to workpiece to be plated, then be passed through working gas, treat
Plating workpiece is biased, and the coating of respective material is deposited on workpiece to be plated.
CN105803412A discloses PVD coating of air speed pipe surface and preparation method thereof, pitot after a polish
On matrix surface, the single coat of metal is plated using physical vaporous deposition.
Above method, in workpiece surface plated film, improves the binding ability of plated film and workpiece to be plated using PVD method.But mesh
Before, PVD is only applicable in the higher material surface plated film of hardness, in the material table of hardness lower (for example mohs hardness is 2-3)
When the plated film of face, the binding force between film layer and substrate is still weaker.
Summary of the invention
The purpose of the invention is to overcome the coating of the existing technology on precious metal surface unstable and coating
The low problem of glossiness provides a kind of coated objects made from precious metals of surface band and preparation method thereof, can be expensive using this method
Surface of metal product forms different types of film layer, is formed by film layer structure and stablizes, brightness is high, and different face can be presented
Color.
To achieve the goals above, first aspect present invention provides a kind of objects made from precious metals, wherein the objects made from precious metals
Including：Noble metal matrix and the PVD layers and transparent film layer being in turn attached on the noble metal matrix are described expensive
Metal is gold or silver.
Second aspect of the present invention provides the preparation method of the aforementioned objects made from precious metals, wherein this method include with
Lower step：
(1) use physical vapour deposition (PVD) in the surface deposits physical vapor deposition layer of noble metal matrix；
(2) optionally, water coating is formed on the PVD layers using water depositing process；
(3) transparent film layer is deposited on the water plating coating using physical vapour deposition (PVD).
Through the above technical solutions, improving noble metal matrix surface it is preferred that be surface-treated in advance to noble metal matrix
Then roughness is easier to form PVD layers in noble metal matrix surface plated film using PVD, it is rich can to form color
Rich film layer, improves the single gold of noble metal matrix, and the change of the color will not influence the quality of noble metal matrix；Then it adopts
Water coating is formed on the PVD layers with water depositing process, increases the glossiness of film layer；And again using PVD in water
Transparent film layer is deposited on plating coating, it is more stable to make to be formed by film layer, increases wearability, and can make the color to be formed
It is more longlasting colour-fast.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of objects made from precious metals prepared by the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of another objects made from precious metals prepared by the embodiment of the present invention 6.
Description of symbols
1, noble metal matrix 12, PVD layers 2
3, water coating 34, transparent film layer 4
Specific embodiment
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
First aspect present invention provides a kind of objects made from precious metals, wherein as shown in Figure 1, the objects made from precious metals includes：It is expensive
Metallic matrix 1 and the PVD layers 2 and transparent film layer 4 being in turn attached on the noble metal matrix 1, the noble metal
For gold or silver.
Preferably, as shown in Fig. 2, the objects made from precious metals includes：Noble metal matrix 1 and it is in turn attached to the noble metal base
PVD layers 2, water coating 3 and transparent film layer 4 on body 1.
According to the present invention, the content of noble metal can be 33-99.99 weight % in the noble metal matrix 1, preferably
99-99.99 weight %；For example, in the present invention, the noble metal matrix 1 can be karat gold, it is also possible to pure gold.Wherein, institute
It states karat gold and refers to the noble metal matrix 1 that Jin Yuyin, zinc, copper, palladium or nickel mixed smelting are formed；The pure gold refers to noble metal matrix 1
In, golden content is no less than 99 weight %；In the present invention, the pure gold includes 3D firmly golden.
According to the present invention, content silver-colored in the silver is 92.5-99 weight %.
According to the present invention, the surface roughness of the noble metal matrix 1 is 0.001-50 μm, preferably 0.005-0.1 μm；
In the present invention, the surface roughness is Ra, i.e. the unevenness of smaller spacing and small peak valley that has of finished surface, can be adopted
It is directly tested with surfagauge.
In the present invention, it if 1 raw material of noble metal matrix itself meets the restriction of above-mentioned surface roughness, directly carries out subsequent
Step.It, can be using chemistry or mechanical side if 1 raw material of noble metal matrix is unsatisfactory for the restriction of above-mentioned surface roughness
Method handles noble metal matrix 1, and this method is not particularly limited, as long as can satisfy the above roughness.
In the present invention, the surface roughness of noble metal matrix 1 meets conditions above, it is easier in the table of noble metal matrix
Face plated film.If surface roughness is too low, the being firmly combined property of film layer and noble metal matrix declines；If surface roughness is too big, shadow
Ring the color of final objects made from precious metals.
According to the present invention, the gold content of the PVD layers 2 can be below 0.1 weight % or in 33 weights
Measure % or more, it is preferable that the gold content of the PVD layers 2 is below 0.01 weight % or in 70-90 weight %
Between, it is highly preferred that the gold content of the PVD layers 2 is between 0.001-0.008 weight % or in 75-85 weight
It measures between %.
According to the present invention, the thickness of the PVD layers 2 can for 10nm-50 μm (such as 10nm, 20nm, 30nm,
Arbitrary value between 50nm, 80nm, 100nm, 250nm, 500nm, 800nm, 1 μm, 10 μm, 30 μm, 50 μm or aforementioned value),
Preferably 0.04-0.3 μm；In the present invention, in the thickness range, between PVD layers 2 and noble metal matrix 1
In conjunction with stronger, and when detecting to objects made from precious metals, which will not influence noble metal matrix 1
The quality of body.
According to the present invention, the color of the PVD layers 2 can be single pure color or variegated；For example, can adopt
Upper same single pure color, specifically, the PVD layers 2 are deposited in the entire surface of noble metal matrix 1 with PVD
Material can be the coloured metal oxide of common tool, metal nitride, metal carbides, metal fluoride, metal
Sulfide, metal boride, diamond-like carbon film-coating, such as：Ni,Ti,Zn,Cr,Mg,Nb,Sn,Al,In,Fe,Zr,Si,Cu,
Ta、Ge、Ag、Co、Au、Gd、La、Y、Ce、W、Hf、Mo、CrN、TiN、TiAlCN、TiCN、TiAlN、AlTiN、TiB2、ZrN、
FeCo, AlSi, TiSi, CrSi, ZnAl, TiZn, TiAl, TiZr, TiSi, TiNi, NiAl, NiV, NiFe, gold copper and DLC
One of or a variety of, preferably gold copper；Wherein, DLC is the carbon film with amorphous structure.
In addition, in the present invention, PVD can also be used to deposit on the surface of noble metal matrix 1 variegated, and specifically, example
Such as, the surface portion of noble metal matrix 1 can be made into another color, CNC can also be passed through by the method for masking
The method of (Computer numerical control, numerically-controlled machine tool) or manual polishing polishing, by the noble metal matrix 1
Surface on the part colours that deposit remove so that a variety of different colors are presented in the surface of the noble metal matrix 1.
According to the present invention, the surface of the PVD layers 2 can be plane or male and fomale(M&F), with show it is various not
Same pattern.
According to the present invention, the thickness of the water coating 3 can be 0.05-50 μm, preferably 0.1-1.5 μm, more preferably
0.5-1.5μm；In the present invention, the thickness limit of the water coating 3 can be increased into the glossiness of film layer in above range.
The material of the water coating 3 can be gold copper, wherein in gold copper, the weight ratio of the content of Jin Hetong can be
(85-75)：(15-25), preferably 85：15 or 75：25.
According to the present invention, the thickness of the transparent film layer 4 can be 0.0001-10 μm, preferably 0.0005-0.1 μm, more
Preferably 0.005-0.1 μm；In the case of in the present invention, it is preferred to, the material of the transparent film layer 4 can be fluoride；For example,
The fluoride can be AF pill；In the present invention, AF pill can be commercially available, for example, AF pill can be purchased from
Huizhou Mo Meite Electron Technology Co., Ltd of producer, model TS-2AB.
In the present invention, by the thickness of the material of the transparent film layer 4 and the above-mentioned limited range of material, first is that energy
Enough making to be formed by film layer prevents from aoxidizing, and keeps it more stable, and another is to increase wearability, and the color to be formed can be made more to hold
It is colour-fast long.In the present invention, especially when being formed by film layer is rose golden, since used target contains copper,
It is easy to aoxidize, so, applying AF film on it can prevent from aoxidizing, and play a protective role.
In the present invention, glossiness is surveyed using 60 degree of angle, the glossiness of the objects made from precious metals 1 can be 880-
950Gu, preferably 880-900Gu.In the present invention, Gu is the meaning of English gloss unit, 1 gloss unit=1Gu.
Second aspect of the present invention provides the preparation method of the aforementioned objects made from precious metals, wherein this method include with
Lower step：
(1) use physical vapour deposition (PVD) in the surface deposits physical vapor deposition layer 2 of noble metal matrix 1；
(2) optionally, water coating 3 is formed on the PVD layers 2 using water depositing process；
(3) transparent film layer 4 is deposited on the PVD layers 2 or water plating coating 3 using physical vapour deposition (PVD).
According to the present invention, in step (1), the mode of the physical vapour deposition (PVD) is vacuum vapor plating, vacuum sputtering
Plated film or vacuum ion membrane plating.
Preferably, the mode of the physical vapour deposition (PVD) is vacuum ion membrane plating.
It is highly preferred that the step of vacuum ion membrane plating, includes：The noble metal matrix 1 is carried out under vacuum conditions
Heating starts metallic target, and injects gas, loads bias, carries out plated film on the surface of the noble metal matrix 1；
It wherein, is 1 × 10 in vacuum degree-2Pa to 9.5 × 10-3Under the vacuum condition of Pa, heating temperature is 50-260 DEG C,
Temperature can have an impact the binding force and color of coating and noble metal matrix 1, especially when producing rose golden, general furnace
Interior heating temperature is 100-250 DEG C, preferably 200 DEG C.
Wherein, plated film time 2-2000min, in the present invention, sedimentation time is according to target and to be plated color different
Sample, plated film time can be different, and target divides arc target, column target, three kinds of horizontal target, and arc target ion particle is most thick, secondly horizontal target, column target from
Sub- particle is most thin, so the coloring of arc target is fast, secondly horizontal target, column target are coloured slowly, and by taking rose golden as an example, the plated film time of arc target exists
10min or so, the plated film time of column target is in 20-30min, in addition, illusion-colour plated film time 10min or so, purple plated film time is most
It is short, it is 2-3min, so plating purple color difference is big, color is unstable.
Wherein, metal used by the metallic target be selected from selected from nickel, zinc, magnesium, tin, iron, chromium, silicon, copper, titanium, zirconium, molybdenum,
Tungsten, aluminium, niobium, indium, tantalum, germanium, silver, gold, cobalt, gadolinium, lanthanum, yttrium, cerium, hafnium, tungsten, stainless steel and its alloy or oxide, nitride,
At least one of carbide, fluoride, sulfide, gold copper and boride；Preferably gold copper.
Wherein, the gas includes protective gas and toning gas, and the protective gas is inert gas, the toning gas
Body is selected from one of nitrogen, acetylene, methane and oxygen or a variety of；In the case of in the present invention, it is preferred to, argon gas is as protection gas
Body, argon gas are used to adjust vacuum degree, and the gas flow of the protective gas is 20-200sccm, preferably 20-150sccm；?
In the present invention, under preferable case, nitrogen, acetylene, methane or oxygen are used to adjust color, the gas stream for being used to adjust color
Amount is 50-500sccm；In the present invention, the gas flow rate of nitrogen, acetylene, methane or oxygen can have an impact to color.
Wherein, the load bias is 10-150V, duty ratio 10-80%.In the present invention, " duty ratio " refers to one
The ratio of pulse occupies in section stream time time and total time.In the present invention, under normal circumstances, bias is higher,
Brightness is bigger, but is more than certain value, and objects made from precious metals edge can turn to be yellow；Therefore, load bias is limited to above range, imitated
Fruit is best.
Wherein, the target current of the metallic target is：Column target 3-120A, preferably 10-120A, more preferably 20-120A,
Arc target 50-200A；In the present invention, electric current is bigger, and ion particles can be thicker, causes the electroplating surface layer of objects made from precious metals more dim
Moon bright, that is, glossiness is bad, and especially influence of the electric current of arc target to glossiness is maximum, influence of the electric current of column target to glossiness
Dynamics is slightly poorer, and suitable electric current is critically important for coating glossiness, therefore, target current is limited to above range, effect
It is best.
According to the present invention, according to vacuum sputtering coating, noble metal matrix 1 is 1 × 10 in vacuum degree-2Pa to 7 × 10- 3100-250 DEG C is heated under conditions of Pa, plating metal target removes surface film oxide.Under conditions of plasma, argon gas electricity
Positive ion bombardment target material surface from rear formation, using magnetron sputtering in noble metal matrix surface plated film, sputtering voltage selection
300-700V, plating metal form film in noble metal matrix surface.
According to the present invention it is possible to select metallic target and gas according to color shown by final objects made from precious metals.For example,
By taking objects made from precious metals shows rose golden as an example, metallic target can be able to be nitrogen for golden copper target or TiAl column target, gas.Specifically
Ground can be specifically described in embodiment.
According to the present invention, in step (1), this method further includes the surface deposits qi-regulating phase in noble metal matrix 1
Vacuum is carried out before sedimentary 2, wherein the vacuum according to the requirement of plated film color and target, in vacuum
Degree is 1 × 10-2Pa to 7 × 10-3Pa, this process are to guarantee that vacuum environment is clean in furnace, and furnace inner environment is made to be suitble to vacuum sputtering plating
Film；According to the difference of prepared noble metal products, vacuum level requirements are different in furnace, and the pumpdown time is generally small in 0.5-2
When.
According to the present invention, in step (2), the water plating solution in the water depositing process is not particularly limited, and can be ability
Domain conventional selection, for example, can choose gold copper, wherein the weight ratio of the content of Jin Hetong can be can be (85-
75)：(15-25), preferably 85：15 or 75：25；It is 0.5-0.9A, preferably 0.7-0.8A that water, which plates electric current,；Temperature is 50-
80 DEG C, preferably 65-75 DEG C；Water plates the time as 1-5min, preferably 2-3min.In the present invention, the condition water plated
It is limited to above range, is capable of forming the thickness of water coating defined by the present invention.
Specifically, the technique of water plating includes：First upper to hang, then product surface cleans, water plating.
According to the present invention, in step (3), the mode of the physical vapour deposition (PVD) is vacuum vapor plating, vacuum sputtering
Plated film or vacuum ion membrane plating.
Preferably, the mode of the physical vapour deposition (PVD) is vacuum vapor plating.
Preferably, the mode of the vacuum vapor plating includes：Evaporation ource electric current is opened, fluoride is evaporated, is formed transparent
Film layer 4.
Preferably, the mode of the vacuum vapor plating includes：It is evaporated under conditions of evaporating ource electric current and being 700-750A
170-190s；170-190s is evaporated under conditions of evaporating ource electric current and being 750-800A again；It then is 800- in evaporation ource electric current
410-430s is evaporated under conditions of 900A.
In addition, carrying out the vacuum vapor plating at normal temperature, vacuum degree is 3 × 10-1Pa to 6 × 10-1Pa, argon flow
For 50-60sccm, oxygen flow 70-80sccm, load bias is 30-40V, duty ratio 30-40%, time 20-
30min；Target is aluminium target, silicon target, when aluminium target, electric current 2-3A, and when selecting silicon target, electric current 2-3A.
According to the present invention, in step (1) and/or step (3), it is clear that aura is carried out before the physical vapour deposition (PVD)
It washes, wherein the condition of aura cleaning includes：Argon flow is 100-320sccm, preferably 280-320sccm, and load is inclined
Pressure is 380-1000V, preferably 380-420V, duty ratio 10-80%, preferably 48-52%, and time 160-720s is excellent
It is selected as 160-200s.
According to the present invention, clear the method also includes carrying out the surface of the noble metal matrix 1 before step (1)
It washes.
In the present invention, different according to the surface texture of noble metal matrix 1, area and clean-up performance, it selects different clear
Wash mode.Under normal conditions, the mode of cleaning can there are two types of.
The first：By noble metal matrix 1 under conditions of 20-30kHz supersound washing 1-15min；In the present invention, it needs
Illustrate, the ultrasonic cleaning time can be extended in special circumstances, to carry out after the completion of ultrasonic cleaning clear water clean 6 times with
On, removal surface cleaning agent residual after the completion of cleaning, need to carry out drying and processing to be dehydrated baking.
Second：The surface of noble metal matrix 1 is clean, non-oxidation layer, and the wine of 95-98 weight % can be directly dipped in non-dust cloth
Smart wiped clean surface is not necessarily to ultrasonic cleaning.
In the present invention, the mode of cleaning can be the first or second, and under preferable case, the mode of cleaning can be with
For the first and second.
In the present invention, noble metal matrix 1 carries out ultrasonic treatment and/or alcohol cleaning in the above conditions, can be into one
Step improves the binding force of PVD layers 2 and noble metal matrix 1；It and in a relatively short period of time, can be in noble metal matrix
The film layer that surface is formed with a thickness of 10nm-50 μm, it is more stable to be formed by film layer.
According to the present invention, the method also includes drying to the noble metal matrix 1 after ultrasonic treatment, drying temperature is
100-150 DEG C, drying time 5-30min.
Wherein, there is no particular limitation for the surface treatment method of noble metal matrix 1, can be using physics polishing or chemistry
The method of corrosion, as long as the surface roughness that can be realized noble metal matrix 1 is 0.001-50 μm, preferably 0.005-0.1 μm
Condition.
The present invention will be described in detail by way of examples below.
In the following Examples and Comparative Examples：
Glossiness：Using the glossiness of objects made from precious metals at 60 degree of LS192 glossiness instrument test.
Wearability：The WS-97 coating adhesion scratch tester pair that Ke Kaihua Science and Technology Development Co., Ltd. researches and develops in
Objects made from precious metals carries out scratch test.The scratch test scriber top with smooth circular cone, is portrayed in the case where gradually increasing load
Coating surface, until coating is destroyed, when breakdown of coating, added load was critical load, and attached in this, as coating and matrix
The measurement of intensity.Loading speed is set as 10N/min, loaded load 30N, scratch speed is 2mm/min, and scratch length is
5mm。
Embodiment 1
The present embodiment is the pure gold product using the coffee-like plating TiAlN film of method preparation of the invention.
(1) pre-treatment
Select noble metal matrix 1：Select pure gold as noble metal matrix 1, surface roughness is 0.02 μm；
Cleaning：The pure gold is cleaned by ultrasonic 10min using distilled water under conditions of 20kHz, the pure gold after cleaning is 150
30min is dried at DEG C, dips in the alcohol wipe clean surface of 98 weight % using non-dust cloth later；
It is vacuumized in furnace：Pure gold after drying is put in vacuum drying oven, adjustment vacuum degree is 3 × 10-3Pa, to guarantee in furnace
Vacuum environment is clean, and furnace inner environment is made to be suitble to be electroplated；
(2) PVD layers are deposited
Aura cleaning：It is 300sccm in argon flow, load bias is 400V, and duty ratio 50%, the time is 400s's
Under the conditions of carry out aura cleaning；
Then, in-furnace temperature is adjusted to 200 DEG C, starts TiAl column target, wherein Ti/Al atomic ratio is 7：3, target current
For 25A；Injection protection gas argon gas, gas flow 130sccm inject nitrogen, and gas flow 150sccm adjusts vacuum degree
It is 3.0 × 10-1Pa loads bias 100V, and duty ratio 50% deposits 30min, and coffee-like TiAlN is formed on pure gold surface
Film, with a thickness of 0.3 μm；
(3) transparent film layer
The pure gold that surface is coated with PVD layers 2 is put in vacuum drying oven, by the way of vacuum vapor plating
Plated film is carried out under room temperature, wherein adjustment vacuum degree is 2.0 × 10-2Pa makes furnace inner environment be suitble to be electroplated, and injects argon gas, argon gas stream
Amount is 60sccm, and adjustment vacuum degree is 1.5 × 10 ° of Pa, and aura cleans 180s, injects oxygen, oxygen flow 80sccm, adjustment
Vacuum degree is 4.0 × 10-1Aluminium target 90s, silicon target 180s is respectively started in Pa, is then shut off aluminium target, silicon target power supply, starts evaporation source
Power supply；180s is evaporated under conditions of evaporating ource electric current and being 720A；180s is evaporated under conditions of evaporating ource electric current and being 780A again；
Then 420s is evaporated under conditions of evaporating ource electric current and being 850A；Form the transparent film layer 4 with a thickness of 0.05 μm.
The objects made from precious metals of preparation is denoted as S1 (structure is as shown in Figure 1), and it is tested for the property, as a result such as table 1
It is shown.
Embodiment 2
The present embodiment is to prepare the pure gold product of the plating CrN film of grey black using method of the invention.
(1) pre-treatment
Select noble metal matrix 1：Select pure gold as noble metal matrix 1, surface roughness is 0.05 μm；
Cleaning：The pure gold is cleaned by ultrasonic 5min using distilled water under conditions of 30kHz, the pure gold after cleaning is 150
30min is dried at DEG C, dips in the alcohol wipe clean surface of 98 weight % using non-dust cloth later；
It is vacuumized in furnace：Pure gold after drying is put in vacuum drying oven, adjustment vacuum degree is 3 × 10-3Pa, by in-furnace temperature
It is adjusted to 200 DEG C；
(2) PVD layers are deposited
Aura cleaning：It is 300sccm in argon flow, load bias is 400V, and duty ratio 50%, the time is 400s's
Under the conditions of carry out aura cleaning；
Then, start high-purity intermediate frequency chromium arc target, target current 100A；Nitrogen is injected, gas flow 230sccm is adjusted
Whole vacuum degree is 3 × 10-1Pa loads bias 100V, and duty ratio 50% deposits 5min, forms grey black on pure gold surface
CrN film, with a thickness of 0.15 μm；
(3) transparent film layer
The pure gold that surface is coated with PVD layers 2 is put in vacuum drying oven, is plated by the way of vacuum vapor plating
Film forms the transparent film layer 4 with a thickness of 0.001 μm.
The objects made from precious metals of preparation is denoted as S2, and it is tested for the property, the results are shown in Table 1.
Embodiment 3
The present embodiment is to prepare the pure gold product of the plating DLC film of black using method of the invention.
(1) pre-treatment
Select noble metal matrix 1：Select pure gold as noble metal matrix 1, surface roughness is 0.2 μm；
Cleaning：The pure gold is cleaned by ultrasonic 10min using distilled water under conditions of 25kHz, the pure gold after cleaning is 150
30min is dried at DEG C, dips in the alcohol wipe clean surface of 98 weight % using non-dust cloth later；
It is vacuumized in furnace：Pure gold after drying is put in vacuum drying oven, adjustment vacuum degree is 3 × 10-3Pa, to guarantee in furnace
Vacuum environment is clean, and furnace inner environment is made to be suitble to be electroplated；
(2) PVD layers are deposited
Aura cleaning：It is 300sccm in argon flow, load bias is 400V, and duty ratio 50%, the time is 400s's
Under the conditions of carry out aura cleaning；
Then, in-furnace temperature being adjusted to 200 DEG C, starts chromium target column target, target current 20A, gas argon gas is protected in injection,
Gas flow is 130sccm, injects acetylene gas, and gas flow 200sccm loads bias 50V, and duty ratio 50% is sunk
Product 50min forms the film layer of black on pure gold surface, with a thickness of 0.5 μm.It is then turned off chromium target column target power supply, injects acetylene gas
Body, gas flow 200sccm load bias 1000V, and duty ratio 80% deposits 5h, form DLC film on pure gold surface, thick
Degree is 0.1 μm.
(3) transparent film layer
The pure gold that surface is coated with PVD layers 2 is put in vacuum drying oven, is plated by the way of vacuum vapor plating
Film forms the transparent film layer 4 with a thickness of 0.01 μm.
The objects made from precious metals of preparation is denoted as S3, and it is tested for the property, the results are shown in Table 1.
Embodiment 4
The present embodiment is the pure gold product using the golden yellow plating TiN film of method preparation of the invention.
(1) pre-treatment
Select noble metal matrix 1：Select pure gold as noble metal matrix 1, surface roughness is 0.03 μm；
Cleaning：The pure gold is cleaned by ultrasonic 10min using distilled water under conditions of 25kHz, the pure gold after cleaning is 150
30min is dried at DEG C, dips in the alcohol wipe clean surface of 98 weight % using non-dust cloth later；
It is vacuumized in furnace：Pure gold after drying is put in vacuum drying oven, adjustment vacuum degree is 3 × 10-3Pa, to guarantee in furnace
Vacuum environment is clean, and furnace inner environment is made to be suitble to be electroplated；
(2) PVD layers are deposited
Aura cleaning：It is 300sccm in argon flow, load bias is 400V, and duty ratio 50%, the time is 400s's
Under the conditions of carry out aura cleaning；
Then, start Ti column target, target current 20A.Injection protection gas argon gas, gas flow 130sccm inject nitrogen
Gas, gas flow 200sccm, adjustment vacuum degree are 5 × 10-1Pa.Bias 100V is loaded, duty ratio 50% deposits 30min,
Golden yellow TiN film is formed, on pure gold surface with a thickness of 0.2 μm.
(3) transparent film layer
The pure gold that surface is coated with PVD layers 2 is put in vacuum drying oven, is plated by the way of vacuum vapor plating
Film forms the transparent film layer 4 with a thickness of 0.01 μm.
The objects made from precious metals of preparation is denoted as S4, and it is tested for the property, the results are shown in Table 1.
Embodiment 5
The present embodiment is the 18k gold objects made from precious metals using the coffee-like plating TiAlN film of method preparation of the invention.
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：Pure gold is replaced with
18k gold.
The objects made from precious metals of preparation is denoted as S5, and it is tested for the property, the results are shown in Table 1.
Embodiment 6
The present embodiment is to prepare the partially red pure gold product of rose gold using method of the invention.
(1) pre-treatment
Select noble metal matrix 1：Select pure gold as noble metal matrix 1, surface roughness is 0.02 μm；
Cleaning：The pure gold is cleaned by ultrasonic 10min using distilled water under conditions of 25kHz, the pure gold after cleaning is 150
30min is dried at DEG C, dips in the alcohol wipe clean surface of 98 weight % using non-dust cloth later；
It is vacuumized in furnace：Pure gold after drying is put in vacuum drying oven, adjustment vacuum degree is 3 × 10-3Pa, to guarantee in furnace
Vacuum environment is clean, and furnace inner environment is made to be suitble to be electroplated；
(2) PVD layers are deposited
Aura cleaning：It is 300sccm in argon flow, load bias is 400V, and duty ratio 50%, the time is 400s's
Under the conditions of carry out aura cleaning；
Then, in-furnace temperature is adjusted to 200 DEG C, starts golden copper target column target, gold/copper atom ratio is 75:25, target current
For 3A.Injection protection gas argon gas, gas flow 130sccm, adjustment vacuum degree are 3 × 10-1Pa.Load bias 100V, duty
Than being 50%, 20min is deposited, the partially red film layer of rose gold is formed on pure gold surface, with a thickness of 0.1 μm.
(3) water coating
Using water depositing process：It is first upper to hang, the product surface through step (2) is cleaned, then use water plate material for
Golden copper, and the weight ratio of the content of Jin Hetong is 75：25, water plating electric current be 0.8A, temperature be 70 DEG C, water plating the time be
2min forms the water coating with a thickness of 0.2 μm；
(4) transparent film layer
The pure gold that surface is coated with PVD layers 2 and water coating 3 is put in vacuum drying oven, using vacuum vapor plating
Mode plated film, formed with a thickness of 0.01 μm of transparent film layer 4.
The objects made from precious metals of preparation is denoted as S6 (structure is as shown in Figure 2), and it is tested for the property, as a result such as table 1
It is shown.
Embodiment 7
The present embodiment is to prepare the partially purple pure gold product of rose gold using method of the invention.
According to method same as Example 6 pure gold overlay coating, institute the difference is that：In step (2), starting
TiAl column target, wherein Ti/Al atomic ratio is 7:3, target current 20A.Injection protection gas argon gas, gas flow 130sccm,
Nitrogen, gas flow 200sccm are injected, adjustment vacuum degree is 5.0 × 10-1Pa, load bias 100V, duty ratio 50%,
30min is deposited, the film layer of the inclined purple of rose gold is formed on pure gold surface, with a thickness of 0.3 μm.
The objects made from precious metals of preparation is denoted as S7, and it is tested for the property, the results are shown in Table 1.
Embodiment 8
The present embodiment is to prepare the partially yellow pure gold product of rose gold using method of the invention.
According to method same as Example 6 pure gold overlay coating, institute the difference is that：In step (2), starting
TiAl column target, wherein Ti/Al atomic ratio is 8:2, target current 20A.Injection protection gas argon gas, gas flow 130sccm,
Adjusting vacuum degree is 5.0 × 10-1Pa injects nitrogen, and gas flow 100sccm loads bias 100V, and duty ratio 50% is sunk
Product 30min forms the film of the inclined yellow of rose gold on pure gold surface, with a thickness of 0.3 μm.
The objects made from precious metals of preparation is denoted as S8, and it is tested for the property, the results are shown in Table 1.
Embodiment 9
The present embodiment is the pure gold product using method preparation blue of the invention.
According to method same as Example 6 pure gold overlay coating, institute the difference is that：In step (2), by furnace
Interior temperature is adjusted to 200 DEG C, starts Ti target arc target, target current 90A, and gas argon gas is protected in injection, and gas flow is
130sccm, adjustment vacuum degree are 5.0 × 10-1Pa, injects oxygen, and gas flow 100sccm loads bias 80V, duty ratio
50%, 10min is deposited, forms the film with a thickness of 0.2 μm on pure gold surface.
The objects made from precious metals of preparation is denoted as S9, and it is tested for the property, the results are shown in Table 1.
Embodiment 10
The present embodiment is to prepare the pure gold product of purple using method of the invention.
According to method same as Example 6 pure gold overlay coating, institute the difference is that：In step (2), by furnace
Interior temperature is adjusted to 200 DEG C, starts Ti target arc target, target current 100A, and gas argon gas is protected in injection, and gas flow is
130sccm, adjustment vacuum degree are 2.0 × 10-1Pa, injects oxygen, and gas flow 100sccm loads bias 100V, duty ratio
50%, 3min is deposited, forms the film with a thickness of 0.1 μm on pure gold surface.
The objects made from precious metals of preparation is denoted as S10, and it is tested for the property, the results are shown in Table 1.
Embodiment 11
The present embodiment is to prepare violaceous pure gold product using method of the invention.
According to method same as Example 6 pure gold overlay coating, institute the difference is that：In step (2), by furnace
Interior temperature is adjusted to 260 DEG C, starts TiAL target arc target, and wherein Ti/Al atomic ratio is 7:3, target current 90A inject nitrogen,
Gas flow is 240sccm, and adjustment vacuum degree is 6.0 × 10-1Pa loads bias 120V, and duty ratio 40% deposits 20min,
The film that pure gold surface is formed with a thickness of 0.3 μm.
The objects made from precious metals of preparation is denoted as S11, and it is tested for the property, the results are shown in Table 1.
Embodiment 12
The present embodiment is to prepare the pure gold product of champagne gold using method of the invention.
According to method same as Example 6 pure gold overlay coating, institute the difference is that：In step (2), by furnace
Interior temperature is adjusted to 200 DEG C, starts Ti target arc target, target current 80A, and gas argon gas is protected in injection, and gas flow is
130sccm, adjustment vacuum degree are 3.0 × 10-1Pa, injects nitrogen, and gas flow 100sccm loads bias 80V, duty ratio
60%, 5min is deposited, forms the film with a thickness of 0.1 μm on pure gold surface.
The objects made from precious metals of preparation is denoted as S12, and it is tested for the property, the results are shown in Table 1.
Embodiment 13
The present embodiment is to prepare the pure gold product of illusion-colour color using method of the invention.
According to method same as Example 6 pure gold overlay coating, institute the difference is that：In step (2), by furnace
Interior temperature is adjusted to 150 DEG C, starts Ti target arc target, target current 100A, and gas argon gas is protected in injection, and gas flow is
130sccm, adjustment vacuum degree are 3.0 × 10-1Pa, injects oxygen, and gas flow 100sccm loads bias 100V, duty ratio
50%, 10min is deposited, forms the film with a thickness of 0.2 μm on pure gold surface.
The objects made from precious metals of preparation is denoted as S13, and it is tested for the property, the results are shown in Table 1.
Embodiment 14
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：The rough surface of pure gold
Degree is 10 μm.
The objects made from precious metals of preparation is denoted as S14, and it is tested for the property, the results are shown in Table 1.
Embodiment 15
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：The rough surface of pure gold
Degree is 1 μm.
The objects made from precious metals of preparation is denoted as S15, and it is tested for the property, the results are shown in Table 1.
Embodiment 16
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：Item of the pure gold in 5kHz
It is cleaned by ultrasonic 10min under part.
The objects made from precious metals of preparation is denoted as S16, and it is tested for the property, the results are shown in Table 1.
Embodiment 17
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：Pure gold is 50kHz's
Under the conditions of be cleaned by ultrasonic 10min.
The objects made from precious metals of preparation is denoted as S17, and it is tested for the property, the results are shown in Table 1.
Embodiment 18
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：After to cleaning
Pure gold carries out drying and processing.
The objects made from precious metals of preparation is denoted as S18, and it is tested for the property, the results are shown in Table 1.
Embodiment 19
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：The sedimentary of formation
With a thickness of 5nm, water coating with a thickness of 0.01 μm, transparent film layer with a thickness of 0.15 μm.
The objects made from precious metals of preparation is denoted as S19, and it is tested for the property, the results are shown in Table 1.
Embodiment 20
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：In step (4), shape
At the fluoride transparent film layer 4 with a thickness of 0.001 μm.
The objects made from precious metals of preparation is denoted as S20, and it is tested for the property, the results are shown in Table 1.
Embodiment 21
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：In step (2), Ti/
Al atomic ratio is 6:4, target current 10A；Injection protection gas argon gas, gas flow 600sccm inject nitrogen, gas stream
Amount is 600sccm, and adjustment vacuum degree is 3.5 × 10-1Pa loads bias 200V, duty ratio 90%.
The objects made from precious metals of preparation is denoted as S21, and it is tested for the property, the results are shown in Table 1.
Embodiment 22
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：
The condition for forming the water coating 3 includes：It is 1.0A that water, which plates electric current, and temperature is 90 DEG C, and water plates the time as 6min.
The objects made from precious metals of preparation is denoted as S22, and it is tested for the property, the results are shown in Table 1.
Embodiment 23
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：Step is being steamed in (4)
The electric current that rises evaporates 200s under conditions of being 600A；200s is evaporated under conditions of evaporating ource electric current and being 700A again；Then it is steaming
The electric current that rises evaporates 300s under conditions of being 750A.
The objects made from precious metals of preparation is denoted as S23, and it is tested for the property, the results are shown in Table 1.
Comparative example 1
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：In step (2), to foot
Gold carries out copper plating treatment, and the pH of copper-contained electroplating liquid is 0.1, and electroplating temperature is 25 DEG C, cathode-current density 4A/dm2, plating
1h forms the layers of copper with a thickness of 800 microns on pure gold surface.
The objects made from precious metals of preparation is denoted as DS1, and it is tested for the property, the results are shown in Table 1.
Comparative example 2
In the same manner as shown in Example 1 in the overlay coating of pure gold, institute the difference is that：Using aluminium alloy as base
Body.
The objects made from precious metals of preparation is denoted as DS2, and it is tested for the property, the results are shown in Table 1.
Table 1
As the result of table 1 can be seen that using objects made from precious metals surface made from above method be formed by film layer compared with
It is thin, different colors can be presented.Through the above technical solutions, being surface-treated in advance to noble metal matrix, improve noble metal base
Then the roughness in body surface face is easier to form PVD layers in noble metal matrix surface plated film using PVD, can shape
At coloury film layer, improve the single gold of noble metal matrix, the change of the color will not influence noble metal matrix at
Color；Then water coating is formed on the PVD layers using water depositing process, increases the glossiness of film layer；And it adopts again
Transparent film layer is deposited on water plating coating with PVD, it is more stable to make to be formed by film layer, increases wearability, and can make
The color of formation is more longlasting colour-fast.
Embodiment 24-46 and comparative example 3-4
Objects made from precious metals is prepared according to the method for embodiment 1-23 and comparative example 1-2 respectively, unlike, respectively using silver
(silver content is by 92.5 weight %) replace noble metal to prepare S24-S46, DS3 and DS4, and the performance test results are shown in Table 2.
Table 2
| Serial number | Glossiness (Gu) | Wearability (N) |
| S24 | 917 | 22 |
| S25 | 935 | 22.8 |
| S26 | 906 | 20.4 |
| S27 | 885 | 22.9 |
| S28 | 880 | 26.7 |
| S29 | 943 | 26.4 |
| S30 | 929 | 25.9 |
| S31 | 925 | 22.2 |
| S32 | 890 | 24.8 |
| S33 | 895 | 25.3 |
| S34 | 892 | 27.4 |
| S35 | 900 | 24.7 |
| S36 | 905 | 24.6 |
| S37 | 870 | 22.1 |
| S38 | 783 | 21.9 |
| S39 | 818 | 21.8 |
| S40 | 805 | 21.4 |
| S41 | 856 | 21.8 |
| S42 | 860 | 19.9 |
| S43 | 891 | 21.1 |
| S44 | 870 | 20.5 |
| S45 | 865 | 20.6 |
| S46 | 877 | 20.9 |
| DS3 | 853 | 18.8 |
| DS4 | 826 | 19.2 |
As the result of table 2 can be seen that using objects made from precious metals surface made from above method be formed by film layer compared with
It is thin, different colors can be presented.Through the above technical solutions, being surface-treated in advance to noble metal matrix, improve noble metal base
Then the roughness in body surface face is easier to form PVD layers in noble metal matrix surface plated film using PVD, can shape
At coloury film layer, improve the single gold of noble metal matrix, the change of the color will not influence noble metal matrix at
Color；Then water coating is formed on the PVD layers using water depositing process, increases the glossiness of film layer；And it adopts again
Transparent film layer is deposited on water plating coating with PVD, it is more stable to make to be formed by film layer, increases wearability, and can make
The color of formation is more longlasting colour-fast.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In skill of the invention
In art conception range, can with various simple variants of the technical solution of the present invention are made, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, is belonged to
Protection scope of the present invention.
Claims (11)
1. a kind of objects made from precious metals, which is characterized in that the objects made from precious metals includes：Noble metal matrix (1) and it is in turn attached to institute
The PVD layers (2) and transparent film layer (4) on noble metal matrix (1) are stated, the noble metal is gold or silver.
2. objects made from precious metals according to claim 1, wherein the objects made from precious metals includes：Noble metal matrix (1) and successively
PVD layers (2), water coating (3) and the transparent film layer (4) being attached on the noble metal matrix (1)；
Preferably, the content of gold is 33-99.99 weight %, preferably 99-99.99 weight % in the gold；In the silver
The content of silver is 92.5-99 weight %；
Preferably, the surface roughness of the noble metal matrix (1) is 0.001-50 μm, preferably 0.005-0.1 μm.
3. objects made from precious metals according to claim 1, wherein the PVD layers (2) with a thickness of 10nm-50
μm；
Preferably, the material of the PVD layers (2) be Ni, Ti, Zn, Cr, Mg, Nb, Sn, Al, In, Fe, Zr, Si,
Cu、Ta、Ge、Ag、Co、Au、Gd、La、Y、Ce、W、Hf、Mo、CrN、TiN、TiAlCN、TiCN、TiAlN、AlTiN、TiB2、
ZrN, FeCo, AlSi, TiSi, CrSi, ZnAl, TiZn, TiAl, TiZr, TiSi, TiNi, NiAl, NiV, NiFe, gold copper
With one of DLC or a variety of；Preferably gold copper；
Preferably, the color of the PVD layers (2) is single pure color or variegated；
Preferably, the surface of the PVD layers (2) is plane or male and fomale(M&F).
4. objects made from precious metals according to claim 2, wherein the water coating (3) with a thickness of 0.05-50 μm, preferably
It is 0.1-1.5 μm；The material of the water coating (3) is gold copper.
5. objects made from precious metals according to claim 1, wherein the transparent film layer (4) with a thickness of 0.0001-10 μm,
Preferably 0.0005-0.1 μm；
Preferably, the material of the transparent film layer (4) is fluoride；
Preferably, the fluoride is AF pill.
6. the preparation method of objects made from precious metals described in any one of claim 1-5, which is characterized in that this method include with
Lower step：
(1) use physical vapour deposition (PVD) in the surface deposits physical vapor deposition layer (2) of noble metal matrix (1)；
(2) optionally, water coating (3) are formed on the PVD layers (2) using water depositing process；
(3) transparent film layer (4) are deposited on the PVD layers (2) or water plating coating (3) using physical vapour deposition (PVD).
7. according to the method described in claim 6, wherein, in step (1), the mode of the physical vapour deposition (PVD) is vacuum steaming
Send out plated film, vacuum sputtering coating or vacuum ion membrane plating；
Preferably, the mode of the physical vapour deposition (PVD) is vacuum ion membrane plating；
It is highly preferred that the step of vacuum ion membrane plating, includes：The noble metal matrix (1) is added under vacuum conditions
Heat starts metallic target, and injects gas, loads bias, carries out plated film on the surface of the noble metal matrix (1)；
It wherein, is 1 × 10 in vacuum degree-2Pa to 9.5 × 10-1Under the vacuum condition of Pa, heating temperature is 50-260 DEG C, when plated film
Between be 2-2000min；
Wherein, metal used by the metallic target be selected from nickel, zinc, magnesium, tin, iron, chromium, silicon, copper, titanium, zirconium, molybdenum, tungsten, aluminium, niobium,
Indium, tantalum, germanium, silver, gold, cobalt, gadolinium, lanthanum, yttrium, cerium, hafnium, tungsten, stainless steel and its alloy or oxide, nitride, carbide, fluorine
At least one of compound, sulfide, gold copper and boride；Preferably gold copper；
Wherein, the gas includes protective gas and toning gas, and the protective gas is inert gas, the toning gas choosing
From one of nitrogen, acetylene, methane and oxygen or a variety of；Wherein, the gas flow of the protective gas is 20-200sccm；
The gas flow of the toning gas is 50-500sccm；
Wherein, the load bias is 10-150V, duty ratio 10-80%；
Wherein, the target current of the metallic target is：Column target 3-120A, arc target 50-200A.
8. according to the method described in claim 6, wherein, in step (1), this method further includes in noble metal matrix (1)
Vacuum in furnace is first carried out before surface deposits physical vapor deposition layer (2), wherein in furnace in vacuum
Vacuum degree is 1 × 10-2Pa to 7 × 10-3Pa。
9. according to the method described in claim 6, wherein, in step (3), the mode of the physical vapour deposition (PVD) is vacuum steaming
Send out plated film, vacuum sputtering coating or vacuum ion membrane plating；
Preferably, the mode of the physical vapour deposition (PVD) is vacuum vapor plating；
Preferably, the mode of the vacuum vapor plating includes：Evaporation ource electric current is opened, fluoride is evaporated, forms transparent film layer
(4)；
Preferably, the mode of the vacuum vapor plating includes：170- is evaporated under conditions of evaporating ource electric current and being 700-750A
190s；170-190s is evaporated under conditions of evaporating ource electric current and being 750-800A again；It then is 800-900A in evaporation ource electric current
Under conditions of evaporate 410-430s.
10. according to the method described in claim 6, wherein, the method also includes in step (1) and/or step (3),
Aura cleaning is carried out before the physical vapour deposition (PVD), wherein the condition of the aura cleaning includes：Argon flow is 100-
320sccm, load bias are 380-1000V, duty ratio 10-80%, time 160-720s.
11. the method according to claim 6 or 8, wherein the method also includes before the step (1) by your gold
The surface for belonging to matrix (1) is cleaned, and the mode of cleaning is：By noble metal matrix (1), ultrasound is washed under conditions of 20-30kHz
1-15min is washed, and/or, cleaning is wiped using the alcohol that non-dust cloth dips in 95-98 weight %；
Preferably, the method also includes being dried to the noble metal matrix (1) after ultrasonic treatment, drying temperature 100-
150 DEG C, drying time 5-30min.
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| CN110629063A (en) * | 2019-10-15 | 2019-12-31 | 深圳市华乐珠宝首饰有限公司 | Preparation process of antioxidant wear-resistant precious metal jewelry |
| CN111394695A (en) * | 2020-04-10 | 2020-07-10 | 扬州工业职业技术学院 | Method for plating palladium on surface of steel strip |
| CN113560153A (en) * | 2021-08-03 | 2021-10-29 | 浙江银之源贵金属有限公司 | Coating method for noble metal postcard |
| CN114150283A (en) * | 2021-11-30 | 2022-03-08 | 广州市中禧珠宝有限公司 | Preparation method of jewelry surface oxidation resistant film |
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