CN102333422A

CN102333422A - Shell and manufacturing method thereof

Info

Publication number: CN102333422A
Application number: CN2010102252901A
Authority: CN
Inventors: 张新倍; 陈文荣; 蒋焕梧; 陈正士; 万自成
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2010-07-14
Filing date: 2010-07-14
Publication date: 2012-01-25

Abstract

The invention relates to a shell and a manufacturing method thereof. The shell comprises a substrate, a bonding layer and a color layer, wherein the surface of the substrate is provided with the bonding layer, and the color layer is covered on the bonding layer of the substrate. The bonding layer is a titanium metal layer, and the color layer is a Ti-N-C membrane, wherein a chromaticity area presented on the color layer is between 45.39 and 47.50 at the L* coordinate of a CIE LAB color system, between 13.07 and 12.42 at the a* coordinate of the CIE LAB color system, and between 13.26 and 18.56 at the b* coordinate of the CIE LAB color system. The invention also provides a magnetron sputtering manufacturing method of the shell. The shell and the manufacturing method can achieve the effect that the color layer presents a bronze color, so the color of a vacuum plating layer is enriched.

Description

Housing and preparation method thereof

Technical field

The present invention relates to a kind of housing and preparation method thereof, relate in particular to a kind of housing and preparation method thereof with bronze-colored and metal-like.

Background technology

Along with the continuous progress of science and technology, mobile phone, personal digital assistant (PDA, Personal Digital Assistant), and various electronic installation such as computer also develop rapidly, its function is also more and more abundant.For the shell that makes electronic installation has rich colors, colored plastic capable of using traditionally forms the colored plastic shell, or forms the colorant layer by the mode of spraying paint at the surface of shell of electronic installation.Yet plastic casing can not present good metal texture with the shell that sprays paint.On the other hand; Being difficult for precision owing to the technology of vacuum coating own is comparatively complicated controls; The color of the metal vacuum coatings that forms in surface of shell in the prior art is limited; Compare with technologies such as baking vanish, anode treatment, the color of vacuum coating is abundant inadequately, has seriously limited its competitiveness in the decoration film coating field.

Summary of the invention

In view of this, the present invention provides a kind of housing with bronze-colored and metal-like.

In addition, the present invention also provides a kind of manufacture method of above-mentioned housing.

A kind of housing; It comprises a matrix, a binder course and a color layer, and said binder course is formed at the surface of matrix; Said color layer is formed at the surface of binder course; Between 45.39 to 47.50, the a* coordinate is between 13.07 to 12.42 in the L* of CIELAB colour system coordinate for the chroma areas that said color layer appears, and the b* coordinate is between 13.26 to 18.56.

A kind of manufacture method of housing, it comprises the steps:

One matrix is provided, forms a binder course at the surface by utilizing magnetron sputtering of this matrix, said binder course is a titanium metal film, and its thickness is 0.1～0.2 μ m.Surface by utilizing magnetron sputtering at this binder course forms a color layer, and said color layer is target with the titanium, and the flow of control nitrogen is between 110 to 150sccm; The total flow of acetylene is between 5 to 20sccm; Said color layer is a Ti-N-C film, and its thickness is 0.2～0.3 μ m, the chroma areas that appears in the L* coordinate of CIE LAB colour system between 45.39 to 47.50; The a* coordinate is between 13.07 to 12.42, and the b* coordinate is between 13.26 to 18.56.

Compared to prior art, the preparation method of said housing when forming color layer, through to the design of reacting gas acetylene and nitrogen flow with to the control of thicknesses of layers, makes color layer demonstrate copper-colored purpose thereby reach.Can demonstrate attractive copper-colored metal appearance with the prepared housing of this method, enrich the color of vacuum coating, greatly improve the outward appearance competitiveness of product.

Description of drawings

Fig. 1 is the structural representation of the housing of preferred embodiment of the present invention.

Fig. 2 is the flow chart that said housing is made in preferred embodiment of the present invention.

The main element symbol description

Housing 10

Matrix 11

Binder course 13

Color layer 15

Embodiment

See also Fig. 1, the housing 10 of the present invention's one preferred embodiment can be the housing of a mobile phone.This housing 10 comprises a matrix 11, a binder course 13 and a color layer 15.This binder course 13 is arranged at the surface of matrix 11, and this color layer 15 is arranged at the surface of binder course 13.

Matrix 11 is stainless steel or glass material.

Binder course 13 is formed at the surface of matrix 11 with the mode of magnetron sputtering.This binder course 13 is a titanium metal film, and its thickness is between 0.1～0.2 μ m.The color of this binder course 13 is for not influencing the thin shade of color layer color, such as can be thin shades such as silver color, white and canescence.

Color layer 15 is a Ti-N-C film, and its mode with magnetron sputtering forms.The thickness of this color layer 15 is between 0.2～0.3 μ m.This color layer 15 demonstrates bronze-colored, and between 45.39 to 47.50, the a* coordinate is between 13.07 to 12.42 in the L* coordinate of CIE LAB colour system for its chroma areas that appears, and the b* coordinate is between 13.26 to 18.56.

Please consult Fig. 1 and Fig. 2 in the lump, the manufacture method of housing 10 of the present invention may further comprise the steps:

One matrix 11 is provided.This matrix 11 can be processed by stainless steel or glass.

This matrix 11 is carried out preliminary treatment, and this preliminary treatment can comprise conventional steps such as electrochemical deoiling, paraffin removal, pickling, ultrasonic waves for cleaning and oven dry.

Form a binder course 13 on the surface of matrix 11.This binder course 13 is a titanium metal film, and it can adopt the mode of magnetron sputtering to form.The concrete operation method that forms this binder course 13 can be: matrix 11 is fixed on the magnetron sputtering coating machine pivoted frame of (figure does not show), vacuumizes cavity to 8 * 10 of this coating machine ^-3Pa, and heat about this cavity to 120 ℃, the feeding flow is the high-purity argon gas of 400～450sccm (standard state ml/min); Open the power supply of titanium target, setting power is 8～12kw, set bias voltage and be-180～-220V, duty ratio is 0～100%, and the revolution rotating speed that pivoted frame is set be 2.5～3.5 rpms (revolution perminute, rpm); Deposit said binder course 13.The time that deposits said binder course 13 can be 20～30 minutes.

Form a color layer 15 on the surface of this binder course 13.In preferred embodiment of the present invention; The concrete operation method that forms color layer 15 can be: behind the said binder course 13 of deposition; In said magnetron sputtering machine, feed nitrogen and acetylene, wherein the flow of nitrogen is between 90 to 110sccm, the total flow of acetylene between 5 to 20sccm; The power of keeping the titanium target is constant; Adjusting is biased into-and 250～0V, duty ratio are 0～50%; The revolution rotating speed of the pivoted frame of magnetron sputtering coater (figure does not show) is 2.5～3.5 rpms, and (revolution perminute, rpm), the time that deposits said color layer 15 can be 20～25 minutes.

This color layer 15 is a Ti-N-C film, and the L* coordinate of CIE LAB colour system is between 45.39 to 47.50, and the a* coordinate is between 13.07 to 12.42, and the b* coordinate is between 13.26 to 18.56.

Housing 10 of the present invention can be the housing of electronic installations such as mobile computer, personal digital assistant; Or be the housing of other decorative kind products; Compared to prior art; The preparation method of said housing is through choosing and to the design of reacting gas acetylene and nitrogen flow, make color layer demonstrate copper-colored purpose thereby reach target.

Be noted that above-mentioned execution mode is merely preferred embodiments of the present invention, those skilled in the art also can do other variation in spirit of the present invention.These all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.

Claims

1. housing; It comprises a matrix, a binder course and a color layer, and said binder course is formed at the surface of matrix; Said color layer is formed at the surface of binder course; It is characterized in that: between 45.39 to 47.50, the a* coordinate is between 13.07 to 12.42 in the L* coordinate of CIE LAB colour system for the chroma areas that said color layer appears, and the b* coordinate is between 13.26 to 18.56.

2. housing as claimed in claim 1 is characterized in that: said color layer is a Ti-N-C film, and its thickness is 0.2～0.3 μ m.

3. housing as claimed in claim 1 is characterized in that: said binder course is a titanium metal film, and thickness is 0.1～0.2 μ m.

4. housing as claimed in claim 1 is characterized in that: said matrix is stainless steel or glass.

5. method for producing shell, it comprises the steps:

One matrix is provided;

Surface by utilizing magnetron sputtering at this matrix forms a binder course, and said binder course is a titanium metal film, and its thickness is 0.1～0.2 μ m;

Surface by utilizing magnetron sputtering at this binder course forms a color layer, and forming said color layer is target with the titanium, and the flow of control nitrogen is 90-110sccm; The total flow of acetylene is between 5～20sccm; Said color layer is a Ti-N-C film, and its thickness is 0.2～0.3 μ m, the chroma areas that said color layer appears in the L* coordinate of CIE LAB colour system between 45.39 to 47.50; The a* coordinate is between 13.07 to 12.42, and the b* coordinate is between 13.26 to 18.56.

6. method for producing shell as claimed in claim 5 is characterized in that: the technological parameter that forms this binder course is: vacuum degree is 8 * 10 ^-3Pa, argon flow amount are 400～450sccm, and power is 8～12kw, bias voltage is-180～-220V, duty ratio is 0～100%, and the revolution rotating speed is 2.5～3.5rpm, and target is the titanium target, and the plated film time is 20～30 minutes.

7. method for producing shell as claimed in claim 5 is characterized in that: the technological parameter that forms this color layer is: vacuum degree is 8 * 10 ^-3Pa, argon flow amount are 400～450sccm, and power is 8～12kw, bias voltage is-250～-0V, duty ratio is 0～50%, and the revolution rotating speed is 2.5～3.5rpm, and target is the titanium target, and the plated film time is 20～25 minutes.