CN105862037A - Stainless steel sheet, preparation method and electronic equipment - Google Patents
Stainless steel sheet, preparation method and electronic equipment Download PDFInfo
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- CN105862037A CN105862037A CN201610191916.9A CN201610191916A CN105862037A CN 105862037 A CN105862037 A CN 105862037A CN 201610191916 A CN201610191916 A CN 201610191916A CN 105862037 A CN105862037 A CN 105862037A
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- stainless steel
- aluminium lamination
- steel materials
- oxide coating
- anodic oxide
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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
- 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
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
- B44C5/0415—Ornamental plaques, e.g. decorative panels, decorative veneers containing metallic elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
- B44C3/02—Superimposing layers
- B44C3/025—Superimposing layers to produce ornamental relief structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
- B44C5/0446—Ornamental plaques, e.g. decorative panels, decorative veneers bearing graphical information
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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
- 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
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
-
- 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
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (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)
- Laminated Bodies (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention provides a stainless steel sheet, a preparation method and electronic equipment. The preparation method comprises the steps that 1, an aluminum layer is formed on the upper surface of a stainless steel substrate; 2, an anode oxidation layer is formed on the upper surface of the aluminum layer; 3, a shielding layer is formed on a presumptive area of the upper surface of the anode oxidation layer, and the parts, outside the presumptive area, of the anode oxidation layer and the aluminum layer are removed; and 4, the shielding layer is removed. Thus, a stainless steel appearance and an anode oxidation appearance can be simultaneously arranged on the upper surface of the stainless steel sheet, and on the basis that the stainless steel appearance of the surface of the stainless steel sheet is maintained, the stainless steel sheet is subjected to dyeing, specific pattern setting and other ornamenting; and accordingly, the appearance effect can be enhanced, and the surface treatment method for the stainless steel sheet is enriched.
Description
Technical field
The present invention relates to plate surface manufacture field, in particular it relates to stainless steel materials and preparation method and electronic equipment.
Background technology
There is due to sheet metal the performances such as texture more attractive in appearance, wear-resisting scratch resistance, be widely used in mobile phone, panel computer
Deng in electronic equipment.In many sheet metals, rustless steel owing to having higher intensity, hardness and the advantage such as corrosion-resistant,
It is increasingly becoming in sheet metal the focus studying application.
But, current stainless steel materials and preparation method thereof still haves much room for improvement.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.
The present invention is following discovery based on inventor and completes: current stainless steel materials surface treatment method is limited and becomes
This is higher, and the surface treated stainless steel materials obtained, and there is adhesion between plated film and stainless steel materials substrate more
More weak, it is difficult to meet reality and apply the problems such as the requirement to stainless steel materials.Inventor is through further investigation and great many of experiments
Finding, this is to realize surface owing to existing stainless steel materials is many by PVD (physical vapour deposition (PVD)) plated film or spraying to process,
And above-mentioned surface treatment method not only can not obtain abundant stainless steel materials outward appearance, and due to spraying or PVD technique shape
Lacking sufficiently strong adhesion between the plated film and the stainless steel materials that become, therefore the kind of plated film is extremely limited, and the thickness of plated film
The parameters such as degree, color are also difficult to the outward appearance of abundant stainless steel materials, it is impossible to meet current electronic equipment and want stainless steel materials
Ask.
To this end, the present invention proposes a kind of method preparing stainless steel materials.Utilize the stainless steel materials that the method obtains, energy
Enough realization has rustless steel outward appearance and anodic oxidation outward appearance at stainless steel materials upper surface simultaneously, such that it is able to keeping stainless
On the basis of the rustless steel outward appearance of steel board surface, anodic oxidation outward appearance is utilized to realize stainless steel materials being dyeed, setting spy
Determine pattern etc. to modify, and then appearance can be strengthened, the surface treatment method of abundant stainless steel materials.
In one aspect of the invention, the present invention proposes a kind of method preparing stainless steel materials, and the method includes: (1)
Aluminium lamination is formed at the upper surface at the bottom of stainless steel lining；(2) upper surface at described aluminium lamination forms anodic oxide coating；(3) exist
The presumptive area of described anodic oxide coating upper surface forms screen layer, and removes the described anodic oxidation beyond described presumptive area
Layer and described aluminium lamination；And (4) remove described screen layer.Thus, it is possible to have not at stainless steel materials upper surface simultaneously
Rust steel outward appearance and anodic oxidation outward appearance, on the basis of keeping stainless steel materials surface rustless steel outward appearance, it is achieved to rustless steel
Sheet material carries out dyeing, setting the modifications such as specific pattern, and then can strengthen appearance, the surface of abundant stainless steel materials
Reason method.
According to embodiments of the invention, in step (1), described aluminium lamination is by hot-dip aluminizing, plating or vacuum sputtering shape
Become.Thus, it is possible to there is sufficiently tight adhesion, to ensure rear between ensureing at the bottom of the aluminium lamination formed and stainless steel lining
Continuous process and be actually used during, at the bottom of aluminium lamination and stainless steel lining between combination the most reliable.
According to embodiments of the invention, in step (1), the thickness of described aluminium lamination is 20～60 μm.Thus, it is possible to ensure
The thickness of aluminium lamination enough forms the anodic oxide coating that thickness is suitable, and anodised process will not due to aluminium lamination cross thin and to not
Rust steel substrate impacts.
According to embodiments of the invention, in described stainless steel materials, at the bottom of described anodic oxide coating and described stainless steel lining it
Between the thickness of described aluminium lamination not less than 12 μm.Aluminium lamination between at the bottom of anodic oxide coating and stainless steel lining has above-mentioned thickness
Time, it is ensured that the process forming anodic oxide coating will not impact at the bottom of the stainless steel lining of lower section.
According to embodiments of the invention, the thickness of described anodic oxide coating is 8～12 μm.Thus, it is possible to ensure this anodic oxidation
Layer can have preferable anodic oxidation appearance, and the process forming anodic oxide coating will not be at the bottom of the stainless steel lining of lower section
Impact.
According to embodiments of the invention, the thickness difference of described stainless steel materials is not more than 0.05mm.Thus, it is possible to ensure that this is not
Rust steel board entirety is the most smooth, has preferable sense of touch.
According to embodiments of the invention, in step (3), described screen layer is by pad pasting, tool and ink layer at least
One of formed.Thus, it is possible to easily the position that need not be formed anodic oxidation outward appearance is shielded.
According to embodiments of the invention, in step (3), by sandblasting, chemical pickling, chemical polishing and electrobrightening
At least one remove the described anodic oxide coating of described screen layer uncovered area and described aluminium lamination.Thus, it is possible to it is easy
Ground removes the anodic oxide coating and aluminium lamination that need not form the position of anodic oxidation outward appearance, outside making to be exposed at the bottom of stainless steel lining,
Thus obtain and there is anodic oxidation outward appearance and the sheet material of rustless steel outward appearance.
According to embodiments of the invention, after step (3), before step (4), farther include: (i) is described pre-
Determine the region beyond region and form protective layer.Can be in the way of using anti-fingerprint film or PVD plated film, beyond presumptive area
Region form protective layer, to being exposed at the bottom of outer stainless steel lining protect or make to be exposed at the bottom of outer stainless steel lining have one
Fixed color.
According to embodiments of the invention, the method farther includes: (5) form groove at the upper surface of described stainless steel materials.
When utilizing this stainless steel materials as the housing of electronic equipment, it is possible to use this groove solves owing to needs arrange connecting line
The problem of appearance caused.Groove can be arranged on rustless steel substrate top surface anodic oxide coating and aluminium lamination and be exposed to outward
Junction at the bottom of stainless steel lining, it is also possible to be filled with this groove by the later stage, is solved product surface out-of-flatness and causes
The problem that product surface has step.
In another aspect of this invention, the present invention proposes a kind of stainless steel materials.According to embodiments of the invention, this is stainless
Steel board utilizes foregoing method to prepare.Thus, the outer surface of this stainless steel materials can have rustless steel simultaneously
Outward appearance and anodic oxidation outward appearance, on the basis of keeping stainless steel materials surface rustless steel outward appearance, it is possible to use anodic oxidation
Outward appearance realizes dyeing stainless steel materials, setting the modifications such as specific pattern, and then can strengthen appearance, enriches not
The surface treatment method of rust steel board.
In still another aspect of the invention, the present invention proposes a kind of stainless steel materials.According to embodiments of the invention, this is stainless
Steel board includes: at the bottom of stainless steel lining；Aluminium lamination, described aluminium lamination covers the presumptive area of described rustless steel substrate top surface；Anode
Oxide layer, described anodic oxide coating is arranged on the upper surface of described aluminium lamination.Thus, it is possible to keeping stainless steel materials surface not
On the basis of rust steel outward appearance, the effigurate anodic oxidation outward appearance of tool is utilized to realize stainless steel materials is carried out in presumptive area
Dyeing, setting specific pattern etc. are modified, and then can strengthen appearance.
According to embodiments of the invention, the thickness sum of described aluminium lamination and described anodic oxide coating is 20～60 μm.Thus,
Can ensure that the upper surface of this stainless steel materials has preferable anodic oxidation modification effect.
According to embodiments of the invention, the thickness of described anodic oxide coating is 8～12 μm.Thus, it is possible to ensure this anodic oxidation
Layer can have a preferable anodic oxidation appearance, and will not be blocked up and forming anodic oxide coating due to anodic oxide coating
During impact at the bottom of the stainless steel lining of lower section.
According to embodiments of the invention, the thickness difference of described corrosion resistant plate is not more than 0.05mm.Thus, it is possible to ensure that this is stainless
Steel board entirety is the most smooth, has preferable sense of touch.
According to embodiments of the invention, this stainless steel materials farther includes: protective layer, and described protective layer covers described stainless
Part beyond presumptive area described in steel substrate upper surface.Thus, it is possible to utilize this protective layer to being exposed to outer stainless steel lining
The end, carries out the protections such as anti-fingerprint and processes, or utilizes protective layer to make to be exposed at the bottom of outer stainless steel lining have certain color.
According to embodiments of the invention, this stainless steel materials farther includes: groove, and described groove is arranged on described rustless steel
The upper surface of sheet material.When utilizing this stainless steel materials as the housing of electronic equipment, it is possible to use this groove solves owing to needing
Connecting line to be arranged and the problem of appearance that causes.
According to embodiments of the invention, described groove is arranged on the upper surface exposed at the bottom of described stainless steel lining and near described sun
At pole oxide layer and described aluminium lamination, the distance between described groove and described aluminium lamination is not more than 0.02mm.Thus, it is possible to
By the later stage, this groove is filled with, solves product surface out-of-flatness and problem that the product surface that causes has step.
In another aspect of this invention, the present invention proposes a kind of electronic equipment.According to embodiments of the invention, this electronics sets
For including: body；And housing, being made up of foregoing stainless steel materials at least partially of described housing.By
This, can have rustless steel outward appearance and anodic oxidation outward appearance at housing upper surface simultaneously, and then can strengthen appearance.
Accompanying drawing explanation
Fig. 1 shows the method flow diagram preparing stainless steel materials according to an embodiment of the invention；
Fig. 2 shows the method flow diagram preparing stainless steel materials in accordance with another embodiment of the present invention；
Fig. 3 shows the method flow diagram preparing stainless steel materials according to another embodiment of the present invention；
Fig. 4 shows the structural representation of stainless steel materials according to an embodiment of the invention；
Fig. 5 shows the structural representation of stainless steel materials in accordance with another embodiment of the present invention；
Fig. 6 shows the structural representation of the stainless steel materials according to another embodiment of the present invention；
Fig. 7 shows the structural representation of the stainless steel materials according to another embodiment of the present invention；
Fig. 8 shows the structural representation of electronic equipment according to an embodiment of the invention；And
Fig. 9 A-Fig. 9 C shows the method flow diagram preparing stainless steel materials in accordance with another embodiment of the present invention.
Description of reference numerals:
100: stainless steel materials；Housing；
1000: electronic equipment；
10: at the bottom of stainless steel lining；20: aluminium lamination；30: anodic oxide coating；40: screen layer；50: protective layer；60: groove
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to accompanying drawing
The embodiment described is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In one aspect of the invention, the present invention proposes a kind of method preparing stainless steel materials.Prepared by the method stainless
Steel board can have rustless steel outward appearance and anodic oxidation outward appearance at stainless steel materials upper surface simultaneously, is keeping corrosion resistant plate
On the basis of the rustless steel outward appearance of material surface, it is achieved stainless steel materials is dyeed, sets the modifications such as specific pattern, Jin Erke
To strengthen appearance, the surface treatment method of abundant stainless steel materials.Specifically, with reference to Fig. 1, the method includes:
S100 forms aluminium lamination
According to embodiments of the invention, in this step, aluminium lamination is formed at the upper surface at the bottom of stainless steel lining.It should be noted that
The parameters such as concrete shape at the bottom of stainless steel lining, size are not particularly limited, and those skilled in the art can be right according to reality application
Above-mentioned parameter at the bottom of stainless steel lining is configured by the related request of the final stainless steel materials obtained.Such as, this stainless steel lining
The end, can directly be formed by stainless steel substrates, and cuts into predetermined shape or size.Or, it is also possible to stainless steel substrates is carried out
Punch forming, in order to obtain at the bottom of the stainless steel lining with given shape.According to the present invention is embodiment, can at the bottom of stainless steel lining
To have the thickness of 0.2～0.6mm.At the bottom of thickness stainless steel lining within the above range, major part electronic equipment pair can be met
Thickness requirement in metal shell.
Specifically, aluminium lamination is formed by hot-dip aluminizing, plating or vacuum sputtering.Thus, it is possible to ensure the aluminium lamination formed
And there is between at the bottom of stainless steel lining sufficiently tight adhesion, with ensure subsequent treatment and actually used during, aluminium lamination
And combination between at the bottom of stainless steel lining is the most reliable.Such as, according to a particular embodiment of the invention, aluminium lamination can be by vacuum
Sputtering is formed.Owing to vacuum sputtering process can provide certain vacuum sputtering temperature, and the aluminum atom in vacuum sputtering process
There is during being sputtered onto at the bottom of stainless steel lining certain energy, at the bottom of the aluminium lamination therefore formed and stainless steel lining between have relatively
For reliable adhesion.Therefore, the aluminium lamination formed in this step can have ideal thickness, without due to aluminum
Adhesion between at the bottom of layer and stainless steel lining is not enough and aluminium lamination is blocked up and cause aluminium lamination to depart from from stainless steel substrate surface, thus can
Think that follow-up anodized forms the material that anodic oxide coating provides sufficiently thick, and it is permissible to have certain thickness aluminium lamination
Ensure that there is enough intensity.Further, the aluminium lamination that said method is formed is utilized, it is possible to simplicity obtains ideal rapidly
Thickness, is conducive to shortening process time, such that it is able to improve production efficiency.Such as, according to a particular embodiment of the invention,
The thickness of the aluminium lamination formed in this step can be not less than 12 μm.According to other embodiments of the present invention, the thickness of aluminium lamination can
Think 20～60 μm.Thus, it is possible to ensure that the thickness of aluminium lamination enough forms the anodic oxide coating that thickness is suitable, and anodic oxidation
Process will not cross thin due to aluminium lamination and impact at the bottom of stainless steel lining.
S200 forms anodic oxide coating
According to embodiments of the invention, in this step, aluminium lamination is carried out anodized, in order at the upper surface of aluminium lamination
Form anodic oxide coating.It should be noted that in this step, the particular type of anodized, treatment conditions are not subject to
Limit especially, as long as can be formed at the upper surface of aluminium lamination, there is certain thickness anodic oxide coating, and ensure that aluminium lamination does not has
It is done and aoxidizes.In other words, after aluminium lamination is carried out anodized, formed anodic oxide coating and
Between at the bottom of stainless steel lining, still remain and there is certain thickness aluminium lamination.Thus, it is possible to utilize this aluminium lamination to rise at the bottom of stainless steel lining
To protective effect, prevent anodised process from impacting at the bottom of stainless steel lining, and aluminium lamination and rustless steel can be utilized
Combination degree more reliably between substrate, improves the adhesion of three-decker at the bottom of anodic oxide coating, aluminium lamination and stainless steel lining
Degree.Owing to adhesion is more weak between at the bottom of anodic oxide coating and stainless steel lining, as in this step, aluminium lamination is carried out thorough anodic oxidation
Process, make whole aluminium lamination all be converted into anodic oxide coating, it would be possible to cause anodic oxide coating to come off from stainless steel substrate.
Such as, according to a particular embodiment of the invention, the thickness of anodic oxide coating can be 8～12 μm.Thus, it is possible to ensure
This anodic oxide coating can have preferable anodic oxidation appearance, and the process forming anodic oxide coating will not be to lower section
Impact at the bottom of stainless steel lining.According to other embodiments of the present invention, at the bottom of anodic oxide coating and stainless steel lining between aluminum
The thickness of layer can be not less than 12 μm.When aluminium lamination between at the bottom of anodic oxide coating and stainless steel lining has above-mentioned thickness, can
To ensure that the process forming anodic oxide coating will not impact at the bottom of the stainless steel lining to lower section.
S300 forms screen layer
According to embodiments of the invention, in this step, the presumptive area at anodic oxide coating upper surface forms screen layer, and
Remove the anodic oxide coating beyond presumptive area and aluminium lamination.It is to say, in this step, segment anode oxide layer is entered
Row shielding processing, in order to the upper surface in segment anode oxide layer forms screen layer, thus, it is possible to by removing presumptive area
Anodic oxide coating in addition and aluminium lamination, expose presumptive area at the bottom of with the stainless steel lining of exterior domain, and make that the method obtains is stainless
Steel board has rustless steel outward appearance.
Specifically, according to embodiments of the invention, screen layer can by pad pasting, tool and ink layer at least one formed
's.Thus, it is possible to easily the position that need not be formed anodic oxidation outward appearance is shielded.For example, it is possible to fate
The anodic oxide coating in territory carries out pad pasting process, utilizes screened film to form screen layer；Or, can prepare and there is given shape
Tool, utilizes tool as screen layer, covers the anodic oxide coating of presumptive area；Can also be at anodic oxide coating upper surface
Presumptive area spraying ink, utilizes ink to form screen layer, the anodic oxide coating in this region is carried out shielding processing.
It will be appreciated to those of skill in the art that the shape of the shape of presumptive area, i.e. screen layer in this step, be
In the stainless steel materials that end form becomes, there is the part of anodic oxidation appearance.According to embodiments of the invention, corrosion resistant plate
The aluminium lamination of material upper surface and anodic oxide coating can have preset shape.Thus, it is possible to according to the actual requirements, by screen
The shape covering layer is designed, then removes anodic oxide coating and the aluminium lamination of screen layer uncovered area, thus at corrosion resistant plate
Material upper surface obtains the exterior design with particular preset shape.Such as, above-mentioned given shape can be electronic equipment mark,
Word or the geometry of rule, or be irregular lines or shape.Thus, it is possible to according to actual needs, to screen
The concrete shape covering layer is designed, thus obtains anodic oxide coating and the aluminium lamination with preset shape.
According to embodiments of the invention, can pass through sandblasting, chemical pickling, chemical polishing and electrobrightening at least one
Remove the anodic oxide coating beyond presumptive area and aluminium lamination.Need not be formed outside anodic oxidation thus, it is possible to remove easily
See the anodic oxide coating at position and aluminium lamination, outside making to be exposed at the bottom of stainless steel lining, thus obtain have anodic oxidation outward appearance and
The sheet material of rustless steel outward appearance.It should be noted that above-mentioned sandblasting, chemical pickling, chemical polishing and electrobrightening is concrete
Parameter can be set according to the thickness of actual anode oxide layer and aluminium lamination.Thus, it is possible to ensureing removing presumptive area
Outer portion anodised aluminium outward appearance (i.e. anodic oxide coating and aluminium lamination) on the basis of, it is ensured that this process will not be damaged not
Rust steel substrate.
According to embodiments of the invention, in order to improve outward appearance and the performance of the stainless steel materials utilizing the method to prepare further,
With reference to Fig. 2, the method can further include:
S10 arranges protective layer
According to embodiments of the invention, in this step, the region formation protective layer beyond presumptive area, in other words,
I.e. unlapped to screen layer region arranges protective layer.It is to say, the region beyond presumptive area, i.e. screen layer are not covered
The region of lid forms protective layer, i.e. forms protective layer at the upper surface at the bottom of the stainless steel lining come out.Specifically, can adopt
By anti-fingerprint film or the mode of PVD plated film, form protective layer being exposed to outer rustless steel substrate top surface, in order to this
Region is exposed at the bottom of outer stainless steel lining to carry out to protect or make to utilize protective layer to make to be exposed to have at the bottom of outer stainless steel lining certain
Color.
S400 removes screen layer
According to embodiments of the invention, in this step, remove the screen layer being previously formed, expose the anode below screen layer
Oxide layer, in order to obtain anodic oxidation outward appearance on this stainless steel materials.In this step, remove screen layer method and
Method that actual conditions can be known to those skilled in the art and condition, as long as screen layer can be removed.
The upper surface utilizing the stainless steel materials that said method obtains has rustless steel outward appearance and anodic oxidation outward appearance simultaneously, because of
This can utilize the anodic oxide coating with anodic oxidation outward appearance to provide more abundant surface to process effect for this stainless steel materials
Really.For example, it is possible to process by above-mentioned anodic oxide coating being carried out dyeing etc., improve the outward appearance of this stainless steel materials further
Effect.
According to embodiments of the invention, the thickness difference of the stainless steel materials that said method obtains is utilized to be not more than 0.05mm.Namely
To say, in this stainless steel materials, thickness maximum a little and thickness minimum a little between thickness difference be not more than 0.05mm.
Thus, it is possible to ensure that this stainless steel materials entirety is the most smooth, there is preferable sense of touch.Such as, according to the enforcement of the present invention
Example, on this stainless steel materials upper surface, the vertical dimension between any two points is not more than 0.05mm.With reference to Fig. 6, above-mentioned
" vertical dimension " between stainless steel materials upper surface any two points refer to along any two points (A point as shown in the figures and
B point) place, place horizontal direction between distance h.
In order to improve the performance of the stainless steel materials that the method obtains further, according to embodiments of the invention, with reference to Fig. 3, should
Method can further include:
S500 arranges groove
According to embodiments of the invention, in this step, the upper surface of stainless steel materials is formed groove.For example, it is possible to it is sharp
With Digit Control Machine Tool, this stainless steel materials is processed, in order to form groove needing the position arranging groove.Thus, in profit
During with this stainless steel materials as the housing of electronic equipment, it is possible to use this groove solves to cause owing to needs arrange connecting line
Problem of appearance.Such as, groove can be arranged at the bottom of stainless steel lining expose upper surface on and near described anodic oxide coating with
And at described aluminium lamination.Wherein, the distance between groove and aluminium lamination can be not more than 0.02mm.When now, groove and aluminium lamination
Between distance refer to that this groove side sidewall near aluminium lamination is to the aluminium lamination distance near the side of groove.Tool according to the present invention
Body embodiment, this groove can be arranged against aluminium lamination and oxidation film layer.Such as, according to a particular embodiment of the invention, should
Groove can be to be exposed at the bottom of outer stainless steel lining and centered by the joint line of aluminium lamination, in the horizontal direction to stainless steel layer with
And aluminium lamination Directional Extension etches and is formed.Thus, it is possible to this groove is filled with by the later stage, solve product surface uneven
The problem that product surface that is whole and that cause has step.
According to a particular embodiment of the invention, the stainless steel materials that prepared by the method can use as handset shell.Specifically,
With reference to Fig. 8, the stainless steel materials that method according to embodiments of the present invention obtains can serve as the shell of mobile phone 1000.Tie below
Close the profile along A-A section each step of the method is described in detail:
Fig. 9 A-Fig. 9 C is the preparation flow figure of the handset shell of the stainless steel materials formation of A-A section along Fig. 8.According to this
Inventive embodiment, with reference to Fig. 9 A, first-selected by punch forming, corrosion resistant plate is prepared as has two bending sections (in figure
Not shown) phone housing shape, with reference to Fig. 9 A (a), it is thus achieved that at the bottom of stainless steel lining 10.Subsequently, with reference to Fig. 9 A (b),
Upper surface at monoblock stainless steel lining 10 prepares aluminium lamination 20.About concrete grammar and the tool of aluminium lamination 20 of preparing aluminium lamination 20
Body thickness in description in detail made above, does not repeats them here.Then, by aluminium lamination 20 is carried out anodic oxidation
Processing, the upper surface at aluminium lamination 20 forms anodic oxide coating 30.With reference to Fig. 9 B, after defining anodic oxide coating 30,
Presumptive area at anodic oxide coating 30 upper surface arranges screen layer 40, and with reference to Fig. 9 B (e), screen layer 40 covers anodic oxygen
Change the subregion of layer 30 and there is reservation shape.Subsequently, the anodic oxide coating 30 beyond presumptive area and aluminium lamination are removed
20, i.e. the anodic oxide coating 30 of screen layer 40 uncovered area and aluminium lamination 20, in order to expose and be positioned at anodic oxide coating 30
And at the bottom of the stainless steel lining under aluminium lamination 20 10.In order to improve the stainless steel materials 100 utilizing above-mentioned steps to obtain further
Outward appearance and serviceability, it is also possible to removing between screen layer 40, region unlapped to screen layer, outside being i.e. exposed to
Stainless steel lining at the bottom of 10 upper surface carry out plated film protection process.Then, then remove screen layer 40, can obtain and there is figure
The stainless steel materials 100 of the structure shown in (f) figure in 9B.Or, with reference to Fig. 9 C (g), after removing screen layer 40,
Can also be processed being exposed to the upper surface of 10 at the bottom of outer stainless steel lining, in order at anodic oxide coating 30 and aluminium lamination 20
And be exposed at the bottom of outer stainless steel lining be formed between the upper surface of 10 groove 60, utilize this groove 60 as " art design slot ",
The problem of appearance of wiring in phone housing can be solved, by the later stage, groove 60 can also be filled with simultaneously, solve groove
The problem that the product caused due to sheet material upper surface uneven thickness one at 60 exists step.
In sum, the method is capable of outside stainless steel materials upper surface has rustless steel outward appearance and anodic oxidation simultaneously
See, and then the appearance of the stainless steel materials of acquisition can be strengthened, the surface treatment method of abundant stainless steel materials.And should
Method step is simple, with low cost, utilizes existing stainless steel materials to produce equipment and simply improves, can realize profit
The method provided by the present invention produces.
In another aspect of this invention, the present invention proposes a kind of stainless steel materials.According to embodiments of the invention, this is stainless
Steel board utilizes foregoing method to prepare.Thus, the outer surface of this stainless steel materials can have rustless steel simultaneously
Outward appearance and anodic oxidation outward appearance, on the basis of keeping stainless steel materials surface rustless steel outward appearance, it is achieved to stainless steel materials
Carry out dyeing, setting the modifications such as specific pattern, and then appearance can be strengthened.
In still another aspect of the invention, the present invention proposes a kind of stainless steel materials.According to embodiments of the invention, with reference to Fig. 4,
This stainless steel materials includes: 10, aluminium lamination 20 and anodic oxide coating 30 at the bottom of stainless steel lining.Specifically, aluminium lamination 20 covers not
The presumptive area of rust steel substrate 10 upper surface, i.e. aluminium lamination 20 covers the portion of upper surface of 10, anodic oxide coating at the bottom of stainless steel lining
On 30 upper surfaces being arranged on aluminium lamination 20, and anodic oxide coating 30 is by aluminium lamination 20 is carried out anodized formation
's.This stainless steel materials has rustless steel outward appearance and anodic oxidation outward appearance simultaneously, thus, it is possible to keeping stainless steel materials
On the basis of the rustless steel outward appearance of surface, it is achieved stainless steel materials is dyeed, sets the modifications such as specific pattern and then permissible
Strengthen appearance.
According to embodiments of the invention, the thickness of aluminium lamination 20 can be not less than 12 μm.Thus, it is possible to utilize, there is above-mentioned thickness
At the bottom of the aluminium lamination protection of degree stainless steel lining below, it is to avoid impact at the bottom of stainless steel lining during forming anodic oxide coating.
It will be appreciated to those of skill in the art that the concrete grammar that aluminium lamination 20 is formed is not particularly limited, such as, aluminium lamination 20 can
To be formed by hot-dip aluminizing, plating or vacuum sputtering.Thus, it is possible to ensure at the bottom of aluminium lamination and the stainless steel lining formed it
Between there is sufficiently tight adhesion, with ensure subsequent treatment and actually used during, at the bottom of aluminium lamination and stainless steel lining
Combination before is the most reliable.Such as, according to a particular embodiment of the invention, aluminium lamination can be by vacuum sputtering or ion plating
Formed.
According to embodiments of the invention, the thickness sum of aluminium lamination 20 and anodic oxide coating 30 can be 20～60 μm.Thus,
Can ensure that the upper surface of this stainless steel materials has preferable anodic oxidation modification effect.Skilled artisans appreciate that
, owing to anodic oxide coating 30 is by carrying out anodized formation to aluminium lamination 20, therefore to ensure aluminium lamination
20 and anodic oxide coating 30 thickness sum within the above range, hot-dip aluminizing, plating or true can initially passed through
When the modes such as empty sputtering form aluminium lamination 20, make the aluminium lamination 20 of acquisition have the thickness of 20～60 μm, thereby may be ensured that right
After this aluminium lamination 20 carries out anodized, anodic oxide coating 30 and the remaining aluminium lamination 20 of formation have enough thickness
Degree.
According to embodiments of the invention, the thickness of anodic oxide coating can be 8～12 μm.Thus, it is possible to ensure this anodic oxidation
Layer can have a preferable anodic oxidation appearance, and will not due to oxidation film layer blocked up and in the process forming oxidation film layer
In impact at the bottom of the stainless steel lining of lower section.
According to embodiments of the invention, in this stainless steel materials, the thickness difference of any two points is not higher than 0.05mm.In other words,
In this stainless steel materials, thickness maximum a little and thickness minimum a little between thickness difference be not more than 0.05mm.Thus,
Can ensure that this stainless steel materials entirety is the most smooth, there is preferable sense of touch.Such as, according to embodiments of the invention,
On this stainless steel materials upper surface, the vertical dimension between any two points is not more than 0.05mm.With reference to Fig. 6, above-mentioned rustless steel
" vertical dimension " between sheet material upper surface any two points refers to distance h at any two points between the horizontal direction at place.
Thus, it is possible to ensure that this stainless steel materials entirety is the most smooth, there is preferable sense of touch.
According to embodiments of the invention, with reference to Fig. 5, this stainless steel materials can further include: protective layer 50.Specifically
Ground, protective layer 50 covers the part beyond 10 upper surface presumptive areas at the bottom of stainless steel lining, and in other words, protective layer 50 covers
10 upper surface upper aluminum layers 20 at the bottom of stainless steel lining and the unlapped region of anodic oxide coating 30.Thus, it is possible to utilize this protection
Layer 50 carries out the protections such as anti-fingerprint at the bottom of the stainless steel lining outside being exposed to 10 and processes, or utilizes protective layer to make to be exposed to outward
There is at the bottom of stainless steel lining certain color.
According to embodiments of the invention, with reference to Fig. 7, this stainless steel materials farther includes: groove 60.Specifically, groove
60 upper surfaces being arranged on stainless steel materials.When utilizing this stainless steel materials as the housing of electronic equipment, it is possible to use should
Groove 60 solves the problem of appearance caused owing to needing to arrange connecting line.Such as, groove 60 can be arranged on stainless steel lining
The end 10 upper surface does not covers anodic oxide coating 30 and aluminium lamination 20 and leans at anodic oxide coating 30 and aluminium lamination 20.Wherein,
Distance between groove and aluminium lamination can be not more than 0.02mm.According to a particular embodiment of the invention, this groove can be against aluminum
Layer and oxidation film layer are arranged.Thus, it is possible to this groove is filled with by the later stage, solves product surface out-of-flatness and lead
The problem that the product surface caused has step.Arrange position and the set-up mode of groove 60 prepare rustless steel with previously described
The groove arranged in the method for sheet material has identical feature and advantage, does not repeats them here.
Understand for convenience, below the method preparing this stainless steel materials is briefly described.According to embodiments of the invention,
Can first provide at the bottom of stainless steel lining 10, then be formed at the upper surface of 10 at the bottom of this stainless steel lining and cover at the bottom of whole stainless steel lining
The aluminium lamination of 10 upper surfaces.Then, aluminium lamination being carried out anodized, the upper surface at aluminium lamination forms anodic oxide coating, with
Time retain a part of aluminium lamination and be not oxidized anodically, formed and there is at the bottom of stainless steel lining-the structure of aluminium lamination-anodic oxide coating from bottom to top.
Then, according to this stainless steel materials surface anodization layer 30 and the concrete shape of aluminium lamination 20, design has reservation shape
Screen layer, about the particular make-up of the method and screen layer arranging screen layer, prepare stainless steel materials with previously described
Method in the method for shielding processing identical, do not repeat them here.Subsequently, remove screen layer uncovered area aluminium lamination with
And anodic oxide coating, then remove screen layer, can obtain and there is 10 upper surface one at the bottom of reservation shape, covering stainless steel lining
Subregional anodic oxide coating 30 and aluminium lamination 20.
In another aspect of this invention, the present invention proposes a kind of electronic equipment.According to embodiments of the invention, with reference to Fig. 8,
This electronic equipment includes body and housing 100, and housing 100 is by foregoing stainless steel materials system at least partially
Become.Thus, it is possible to there is rustless steel outward appearance and anodic oxidation outward appearance at housing 100 upper surface simultaneously, and then can increase
Strong appearance.It should be noted that in this electronic equipment, the electronics that body can be known to those skilled in the art
The body construction of equipment, does not repeats them here.
Below in conjunction with embodiment, the solution of the present invention is explained.It will be understood to those of skill in the art that following enforcement
Example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.Unreceipted concrete technology or condition in embodiment,
According to the technology described by the document in this area or condition or carry out according to product description.Agents useful for same or instrument are not noted
Bright production firm person, be can by city available from conventional products.
Embodiment 1
Using thickness is the corrosion resistant plate of 0.4mm, by punch forming, is formed at the bottom of the stainless steel lining of 0.4mm；Utilize true
Empty sputtering, forming thickness at the bottom of stainless steel lining is the aluminium lamination of 50-60um, and the condition of vacuum sputtering is: temperature 400 DEG C with
On, the average single 20v of high-speed electron flow, time 20-30min.Aluminium lamination is carried out anodized, and forming thickness is 8-12 μm
Anodic oxide coating, the condition of anodized is regular oxidation parameter.Now, at the bottom of anodic oxide coating and stainless steel lining
Between remaining aluminum layer thickness be more than 30 μm, it is ensured that adhesive force.Use spraying shielding or the mode of high temperature dwell cuticula,
Screen layer is formed at anodic oxide coating upper surface.ABB mechanical grinding or artificial polishing is utilized to remove the anode beyond screen layer
Oxide layer and aluminium lamination, it is thus achieved that stainless steel materials.
Embodiments of the present invention described in detail above, but, it is concrete thin that the present invention is not limited in above-mentioned embodiment
Joint, in the technology concept of the present invention, can carry out multiple simple variant to technical scheme, and these are simple
Modification belongs to protection scope of the present invention.It is further to note that each described in above-mentioned detailed description of the invention
Concrete technical characteristic, in the case of reconcilable, can be combined by any suitable means.
In describing the invention, it is to be understood that term " on ", D score, "front", "rear", " top ", " end " " interior ",
Orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this
Bright and simplification describes rather than indicates or imply that the device of indication or element must have specific orientation, with specific orientation
Structure and operation, be therefore not considered as limiting the invention.Such as, in the present invention, stainless steel materials and stainless
Steel substrate, aluminium lamination, anodic oxide coating isostructural " upper surface " refer in actual applications, and this sheet material or structure are towards outward
Portion's environment and away from the side of electronic equipment internal.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term necessarily
It is directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be arbitrary
Individual or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be combined by art personnel
And combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary,
Being not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, revises, replaces and modification.
Claims (19)
1. the method preparing stainless steel materials, it is characterised in that including:
(1) aluminium lamination is formed at the upper surface at the bottom of stainless steel lining；
(2) upper surface at described aluminium lamination forms anodic oxide coating；
(3) presumptive area at described anodic oxide coating upper surface forms screen layer, and removes the institute beyond described presumptive area
State anodic oxide coating and described aluminium lamination；And
(4) described screen layer is removed.
Method the most according to claim 1, it is characterised in that in step (1), described aluminium lamination is by hot-dip
Aluminum, plating or vacuum sputtering are formed.
Method the most according to claim 1, it is characterised in that in step (1), the thickness of described aluminium lamination is 20～60 μm.
Method the most according to claim 1, it is characterised in that in described stainless steel materials, described anodic oxide coating
And the thickness of the described aluminium lamination between at the bottom of described stainless steel lining is not less than 12 μm.
Method the most according to claim 1, it is characterised in that the thickness of described anodic oxide coating is 8～12 μm.
Method the most according to claim 1, it is characterised in that the thickness difference of described stainless steel materials is not more than 0.05mm.
Method the most according to claim 1, it is characterised in that in step (3), described screen layer be by pad pasting,
Tool and ink layer at least one formed.
Method the most according to claim 1, it is characterised in that in step (3), by sandblasting, chemical pickling,
Chemical polishing and electrobrightening at least one remove the described anodic oxide coating beyond described presumptive area and described aluminum
Layer.
Method the most according to claim 1, it is characterised in that after step (3), before step (4), enters
One step includes:
I () region beyond described presumptive area forms protective layer.
Method the most according to claim 1, it is characterised in that farther include:
(5) upper surface at described stainless steel materials forms groove.
11. 1 kinds of stainless steel materials, it is characterised in that described stainless steel materials is to utilize described in any one of claim 1～10
Method prepare.
12. 1 kinds of stainless steel materials, it is characterised in that including:
At the bottom of stainless steel lining；
Aluminium lamination, described aluminium lamination covers the presumptive area of described rustless steel substrate top surface；
Anodic oxide coating, described anodic oxide coating is arranged on the upper surface of described aluminium lamination.
13. stainless steel materials according to claim 12, it is characterised in that described aluminium lamination and described anodic oxide coating
Thickness sum be 20～60 μm.
14. stainless steel materials according to claim 12, it is characterised in that the thickness of described anodic oxide coating is
8～12 μm.
15. stainless steel materials according to claim 12, it is characterised in that the thickness difference of described corrosion resistant plate is not more than
0.05mm。
16. stainless steel materials according to claim 12, it is characterised in that farther include:
Protective layer, described protective layer covers the part beyond presumptive area described in described rustless steel substrate top surface.
17. stainless steel materials according to claim 12, it is characterised in that farther include: groove, described groove
It is arranged on the upper surface of described stainless steel materials.
18. stainless steel materials according to claim 17, it is characterised in that described groove is arranged on described stainless steel lining
On the upper surface that the end exposes and at described anodic oxide coating and described aluminium lamination, between described groove and described aluminium lamination away from
From no more than 0.02mm.
19. 1 kinds of electronic equipments, it is characterised in that including:
Body；And
Housing, being made up of the stainless steel materials described in any one of claim 11～18 at least partially of described housing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710852530.2A CN107738537B (en) | 2016-03-30 | 2016-03-30 | Stainless steel plate, preparation method and electronic equipment |
| CN201610191916.9A CN105862037B (en) | 2016-03-30 | 2016-03-30 | Stainless steel materials and preparation method and electronic equipment |
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| CN201610191916.9A CN105862037B (en) | 2016-03-30 | 2016-03-30 | Stainless steel materials and preparation method and electronic equipment |
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| CN107738537A (en) * | 2016-03-30 | 2018-02-27 | 广东欧珀移动通信有限公司 | Stainless steel materials and preparation method and electronic equipment |
| WO2018166063A1 (en) * | 2017-03-14 | 2018-09-20 | 华为技术有限公司 | Terminal housing and terminal |
| CN109639865A (en) * | 2019-01-15 | 2019-04-16 | 广东长盈精密技术有限公司 | The surface treatment method and mobile phone battery cover of mobile phone battery cover |
| CN111112029A (en) * | 2019-12-23 | 2020-05-08 | 深圳富泰宏精密工业有限公司 | Multi-color workpiece and method for manufacturing same |
| CN111676501A (en) * | 2020-07-22 | 2020-09-18 | 中山市三美高新材料技术有限公司 | Anodic oxidation coloring process with characteristic spectrum reflection enhancement |
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| CN107738537B (en) * | 2016-03-30 | 2020-06-05 | Oppo广东移动通信有限公司 | Stainless steel plate, preparation method and electronic equipment |
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| CN111676501A (en) * | 2020-07-22 | 2020-09-18 | 中山市三美高新材料技术有限公司 | Anodic oxidation coloring process with characteristic spectrum reflection enhancement |
| CN111676501B (en) * | 2020-07-22 | 2021-05-18 | 中山市三美高新材料技术有限公司 | Anodic oxidation coloring process with characteristic spectrum reflection enhancement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107738537A (en) | 2018-02-27 |
| CN105862037B (en) | 2017-09-29 |
| CN107738537B (en) | 2020-06-05 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523859 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |