CN102477530A

CN102477530A - Shell and manufacture method thereof

Info

Publication number: CN102477530A
Application number: CN2010105610369A
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: 2010-11-26
Filing date: 2010-11-26
Publication date: 2012-05-30

Abstract

The invention relates to a shell. The shell comprises a substrate, a bonding layer and a color layer, wherein the bonding layer is formed on the surface of the substrate, the color layer is formed on the surface of the binding layer, the color layer is a Zr-N membrane, the L<*> coordinate value of the chromaticity area presented by the color layer on the CIE LAB surface color system is 55-65, the a<*> coordinate value is 10-20, and the b<*> coordinate value is 30-40. The present invention further provides a manufacture method for the shell. The shell presents a golden yellow appearance so as to enrich the color of the vacuum coating layer.

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 golden yellow 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 computingmachine 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 vacuum coating technology itself 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, anodizing, the color of vacuum coating is abundant inadequately, has limited its competitive power in the decoration film coating field.

Summary of the invention

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

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

A kind of housing comprises matrix, key coat and color layer, and said key coat is formed at the surface of matrix; Said color layer is formed at the surface of key coat, and this color layer is the Zr-N film, and it passes through magnetically controlled DC sputtering; And with the zirconium is target, is working gas with nitrogen and argon gas, and wherein the total flow of nitrogen and argon gas is 150～700sccm; The branch of nitrogen covers 50～80% of total gas pressure intensity and forms this Zr-N film, and the chroma areas that this color layer appears is in the L of CIE LAB colour system ^*Coordinate figure between 55 to 65, a ^*Coordinate figure between 10 to 20, b ^*Coordinate figure is between 30 to 40.

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

Matrix is provided;

Surface magnetic control sputtering key coat at this matrix;

Surface magnetic control sputtering color layer at this key coat; The processing parameter of the said color layer of magnetron sputtering is: with the zirconium is target, is reactant gases with nitrogen, and argon gas is a working gas; The total flow of nitrogen and argon gas is 150～700sccm, and the branch of nitrogen covers 50～80% of total gas pressure intensity; Said color layer is the Zr-N film, and the chroma areas that said color layer appears is in the L of CIE LAB colour system ^*Coordinate figure between 55 to 65, a ^*Coordinate figure between 10 to 20, b ^*Coordinate figure is between 30 to 40.

The preparation method of said housing; When utilizing magnetically controlled DC sputtering to form color layer; Adopt the zirconium target as target; Through to reactant gases nitrogen and the control of working gas argon gas total flux and the control of nitrogen partial pressure, thereby realize the microcosmic bonding structure between each proportional relationship of all ingredients and each composition in the required color layer, make color layer demonstrate flavous purpose thereby reach.Can demonstrate attractive flavous metal appearance with the prepared housing of this method, enrich the color of vacuum coating, improve the outward appearance competitive power of product widely.

Description of drawings

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

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

The main element nomenclature

Housing	10
		Matrix	11
Key coat	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 matrix 11, key coat 13 and color layer 15.This key coat 13 is arranged at the surface of matrix 11, and this color layer 15 is arranged at the surface of key coat 13.

Matrix 11 can be non-metallic material such as metallic substance or glass, plastics.

Key coat 13 is formed at the surface of matrix 11 with the mode of magnetically controlled DC sputtering.This key coat 13 is a titanium metal film, and its thickness is between 0.1～0.3 μ m.The color of this key coat 13 is for not influencing the pastel shade of color layer color, such as can be pastel shades such as silver color, white and pearl.

Color layer 15 is the Zr-N film, and its mode with magnetically controlled DC sputtering forms.The thickness of this color layer 15 is between 0.3～0.5 μ m.This color layer 15 demonstrates golden yellow, and its chroma areas that appears is in the L of CIE LAB colour system ^*Coordinate figure between 55 to 65, a ^*Coordinate figure between 10 to 20, b ^*Coordinate figure is between 30 to 40.

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

Matrix 11 is provided.This matrix 11 can be non-metallic material such as metallic substance or glass, plastics.

This matrix 11 is carried out pre-treatment.This pre-treatment can comprise conventional carries out steps such as electrochemical deoiling, paraffin removal, pickling, ultrasonic cleaning and oven dry to matrix 11.

Surface at matrix 11 forms key coat 13.This key coat 13 is a titanium metal film, and it can adopt the mode of magnetically controlled DC sputtering to form.The concrete operation method that forms this key coat 13 can be: matrix 11 is fixed on the direct current magnetron sputtering coater pivoted frame of (figure does not show), vacuumizes cavity to 3 * 10 of this coating equipment ^-5Torr, and heat about this cavity to 120 ℃, the feeding flow is the argon gas (working gas) of 400～450sccm (standard state ml/min); Open the power supply of titanium target, setting titanium target power is 8～10kw, to matrix 11 apply 0～-bias voltage of 200V; Dutycycle is 0～100%; And the revolution rotating speed that pivoted frame is set is 3 rpms (revolution per minute rpm), deposits said key coat 13.The time that deposits said key coat 13 can be 5～10 minutes.

Surface at this key coat 13 forms color layer 15.In preferred embodiment of the present invention; The concrete operation method that forms color layer 15 can be: behind the said key coat 13 of deposition; In said magnetically controlled DC sputtering coating equipment, feed reactant gases nitrogen and argon gas; And set nitrogen and the total flow of argon gas is 150～700sccm, and the branch of nitrogen covers 50～80% of total gas pressure intensity; It is 8～12kw that zirconium target power is set, regulate to matrix 11 be biased into 0～-250V, dutycycle are 0～100%, the revolution rotating speed of pivoted frame is 2.5～3.5 rpms, and (revolution per minute rpm), deposits said color layer 15.The time of deposition color layer 15 can be 20～40 minutes.

This color layer 15 is the Zr-N film, and it is in the L of CIE LAB colour system ^*Coordinate figure between 55 to 65, a ^*Coordinate figure between 10 to 20, b ^*Coordinate figure is between 30 to 40.

Housing 10 of the present invention can be the housing of electronic installations such as mobile computer, personal digital assistant, or is the housing of other decorative kind products.

Compared to prior art, the preparation method of said housing 10 is through choosing and to the design of reactant gases nitrogen flow, make color layer 15 demonstrate flavous purpose thereby reach target.

Be noted that above-mentioned embodiment 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. a housing comprises matrix, key coat and color layer, and said key coat is formed at the surface of matrix; Said color layer is formed at the surface of key coat; It is characterized in that: this color layer is the Zr-N film, and it is through magnetically controlled DC sputtering, and is target with the zirconium; With nitrogen and argon gas is working gas; Wherein the total flow of nitrogen and argon gas is 150～700sccm, and the branch of nitrogen covers 50～80% of total gas pressure intensity and forms this Zr-N film, and the chroma areas that this color layer appears is in the L of CIE LAB colour system ^*Coordinate figure between 55 to 65, a ^*Coordinate figure between 10 to 20, b ^*Coordinate figure is between 30 to 40.

2. housing as claimed in claim 1 is characterized in that: said key coat is a titanium metal film, and its thickness is 0.1～0.3 μ m.

3. housing as claimed in claim 1 is characterized in that: the thickness of said color layer is 0.3～0.5 μ m.

4. housing as claimed in claim 1 is characterized in that: said matrix is metallic substance, glass or plastics.

5. the making method of a housing, it comprises the steps:

One matrix is provided;

Surperficial magnetically controlled DC sputtering one key coat at this matrix;

Surperficial magnetically controlled DC sputtering one color layer at this key coat; The processing parameter of the said color layer of magnetically controlled DC sputtering is: be target with the zirconium; With nitrogen and argon gas is working gas; Wherein the total flow of nitrogen and argon gas is 150～700sccm, and the branch of nitrogen covers 50～80% of total gas pressure intensity; Said color layer is the Zr-N film, and the chroma areas that said color layer appears is in the L of CIE LAB colour system ^*Coordinate figure between 55 to 65, a ^*Coordinate figure between 10 to 20, b ^*Coordinate figure is between 30 to 40.

6. the making method of housing as claimed in claim 5; It is characterized in that: said key coat is a titanium metal film; The processing parameter that forms this key coat is: the power of titanium target is 8-10kw; The bias voltage that matrix is applied is 0～-200V, dutycycle is 0～100%, the plated film time is 5～10 minutes.

7. the making method of housing as claimed in claim 5; It is characterized in that: the processing parameter of said this color layer of formation is: the power that the zirconium target is set is 8-12kw; The bias voltage that matrix is applied is 0～-250V, dutycycle is 0～100%, the plated film time is 20～40 minutes.