Background technology
In the application of new electronic product from generation to generation (especially portable product), compact has been the basic demand of consumer products, and because the high specific gravity of iron and steel, therefore give up steel mostly, and using other light material, this is the about in the past main cause of propagating its belief on a large scale in 15 years of engineering plastic.
Generally speaking, electronic installation is for light-weighted purpose and be convenient to production and manufacturing, its shell adopts plastic cement or plastic material made mostly, but the shell that plastic cement material is made, its effect and texture in vision or sense of touch is relatively poor, and therefore, the dealer can have good visual sense of beauty and texture in order to make plastic shell, just see through the mode that plastic cement is electroplated, producing on the shell of plastic cement material has metal level; Or in the mode of pasting transfer printing or sticker layer are attached on this plastic shell, make its metallic texture.In addition, more there is the dealer to develop the mode of thermal spraying, on plastic parts, to be formed with metal level.No matter but be thermal spraying or plating, mode such as paste, only can on plastic cement material, produce single metal-like, and along with consumer's sense organ demand difference, and the strong competition in electronic product market, the metal-like that simple gold, silvery white etc. are dull, satisfying the demands of consumers, also slowly lose the competitiveness on the consumption market simultaneously.
On the other hand; the recuperability of plastic cement is not good; make each big industrial manufacturer of various countries all begin actively on product, to adopt the lightweight material; wherein light metal is under the promotion that economizes the energy, lightweight and environmental protection recovery trend; its application day by day enlarges; for example aluminium alloy will continue to have significantly development, and therefore the magnesium lighter than aluminium be subjected to attracting attention greatly and expectation, and the expection magnesium alloy also will become one of main structural wood.In other words,, all using light metal aspect automobile, the energy products gradually at present except traditional application market, and new business opportunity such as 3C Product, high-tech application etc., following light metal will become a ring important in the metal industry.
Because present consumer electronics market demand fast development, especially many electronic product shell all focus on the variation of texture and color, to attract consumer's sight.Generally,, make product appearance have the required color of client, but the processing procedure of baking vanish application also can't present the texture of metal still with traditional processing of spraying paint for the processing of magnesium alloy workpiece.In addition, have the dealer with the mode coating metal level electroplated on outer shell workpiece, make it have metallic luster, even can on product, impose transfer printing, have the special rete of pattern with coating one deck.But above-mentioned processing procedure, method only can present single effect, and in problem such as the tack that can occur the rete on the not good or product of yield on the processing procedure is bad.
This case designer is because the above-mentioned defective of constructional device when actual using commonly used, and the accumulation individual is engaged on the related industry exploitation practice experience for many years, studies intensively, and proposes a kind of reasonable in design and effectively improve the structure of the problems referred to above finally.
The utility model content
Main purpose of the present utility model aims to provide a kind of metal surface coating structure, and it can present metallic luster at the outward appearance of metal works, and the coloured silk of dazzling that more can have the solid of font or pattern changes, to meet the diversified requirement of electronic product outward appearance.
Another purpose of the present utility model, aim to provide a kind of metal surface coating structure, it makes its outward appearance have special color change effect, and can cause the visual effect of color change along with beholder's different angles applicable to product casing or relevant zero element.
In order to achieve the above object, the utility model provides a kind of metal surface coating structure, comprises: a metal substrate; One is located at the priming coat on this metal substrate; One is located at the metal-plated rete on this priming coat, and this metal-plated rete has at least one pattern, and the surface of this metal-plated rete has concavo-convex micro-structural; An and clear coat of being located on this metal-plated rete.
As above-mentioned structure, this metal-plated rete can present the texture of metal; Moreover the concavo-convex micro-structural (as fold) of this metal coating laminar surface can show three-dimensional metal and dazzle color texture, so that this metal surface coating structure has the purpose of preferable optical effect.
For enabling further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the utility model is limited.
The specific embodiment
At first, see also Fig. 1 to shown in Figure 2, the utility model proposes a kind of metal surface coating structure, it comprises: a metal substrate 10, a priming coat (PRIMER) 11, a metal-plated rete 12 and a clear coat 13 are formed; Wherein this metal surface coating structure can present metallic luster, more can show three-dimensional changeable color effect and the texture of dazzling.
Below will describe the detailed features of above-mentioned each layer structure in detail.This metal substrate 10 is general metal material, and in this specific embodiment, these metal substrate 10 the bests are magnesium alloy material, zinc material, aluminum alloy material or almag, being applied to electronic product such as shells such as notebook computer, mobile phone, and then satisfy the light-weighted requirement of electronic product.Magnesium alloy has many advantages: for example the EMI barriering effect is good, and magnesium alloy is a nonmagnetic metal, and the covering property of electromagnetic wave noise is good, can effectively prevent electromagnetic interference; Fine heat radiation property, the heat conductivity of magnesium alloy is good, continues high speed, the design that is highly suitable for dispelling the heat in the operational speed of a computer; The hard amount of matter is light, the weight of magnesium be aluminium 1/3, iron 1/4, and intensity, rigidity all are better than aluminium and iron; Shock absorption is good, and the specific damping capacity of magnesium alloy is 10~25 times of aluminium alloy, 1.5 times of kirsite, show its damping capaicty excellence, can effectively reduce noise and vibrations, be fit to very much be applied on the portable device, it helps and reduces the interference of external shock source to inner precise electronic, optical element; And magnesium alloy has the little characteristics of shrinkage factor, and external form stability height is not subject to the influence of environment temperature and time and changes.
This priming coat 11 is located on this metal substrate 10, this priming coat 11 mainly is to improve the surface characteristic of this metal substrate 10, for example, improve the surface coating adhesive force of metal substrate 10 or prolong metallic article life-span or the like, and this priming coat 11 preferably has high adherence for this metal substrate 10, to reach preferable electronic product shell characteristic.
This metal-plated rete 12 takes shape on this priming coat 11, in other words, this metal substrate 10 is coated with after this priming coat 11, can handle by means of sputter, with the above-mentioned metal-plated rete 12 of moulding, and this metal-plated rete 12 is preferably made by the mode of vacuum coating, and actual sputter process can comprise plane two plate sputter, three-pole sputter, magnetic control sputtering plating, reaction sputter or radio frequency sputter etc., but does not exceed with above-mentioned.In addition, the thickness of this metal-plated rete 12 can further be controlled, and for example this metal-plated rete 12 can be a thin layer, so that this metal-plated rete 12 has the metal-like of high-compactness; And this metal-plated rete 12 can be coating such as nickel, chromium, titanium, aluminium, copper, tin, silver or gold.
On the other hand, have more at least one pattern 121 on this metal-plated rete 12, this pattern 121 can be and indicates symbol, figure lines or literal or the like, and in this specific embodiment, this pattern 121 utilizes the laser engraving process technology to carve literal or the pattern that presents on this metal-plated rete 12, with the demand that is applied to shell outside the electronic product or special pattern.This pattern 121 utilizes setpoint frequency in the laser engraving processing procedure, electric current, pulse, translational speed and the isoparametric laser beam of luminous point path of motion to carve in this metal-plated rete 12 and forms, this laser beam forms pattern 121 on this metal-plated rete 12, this pattern 121 can produce the reverberation of different angles by means of the reflecting surface of different angles, makes the pattern 121 of this laser engraving can present the variation of different colours in different angles.
Moreover, please refer to Fig. 2, this clear coat 13 takes shape on this metal-plated rete 12, to be covered in this metal-plated rete 12 and this pattern 121.This clear coat 13 can be a protective layer, and the light transmission of this clear coat 13 can allow the user observe the metal-like that this metal-plated rete 12 is presented, and in the present embodiment, this clear coat 13 is the moulding of spraying method institute.And the utility model more utilizes the parameter of adjusting metal coating, laser engraving and spraying method, make the irregular micro-structural 122 of moulding on the surface of this metal-plated rete 12, for example this micro-structural 122 is a kind of micro-structural of fold form, this micro-structural 122 can present dazzles color optical effect, and cooperate the pattern 121 of laser engraving, make ordinary consumer watch the solid that this micro-structural 122 presented and dazzle color texture by means of this clear coat 13.In other words, this fold micro-structural according to establishing the reverberation that produces different angles to the reflecting surface of different angles, makes this fold micro-structural can present the variation of different colours by means of light when different angles, that is this fold micro-structural can present and dazzles color visual effect.
The actual look of coating structure in metal surface of the present utility model, if amplify 1000 times with microscope, viewed image, it is dark that literal that wherein utilizes the laser engraving process technology to carve on this metal-plated rete 12 to present or pattern are, metal-plated rete 12 then is light color, the micro-structural that can also clear view be formed with the fold form by magnified image to the surface of this metal-plated rete 12, the micro-structural of this fold form can cause optic reflection differences, make and under different angles, observe, this metal-plated rete 12 promptly can present dazzles color optical effect, and this metal-plated rete 12 can show the texture of metal equally, arrange in pairs or groups the again design of pattern 121, this metal surface coating structure promptly can be applicable to electronic product shell, dazzles color effect to present diversified stereo metal.
Therefore, the utility model is to adjust the parameter of metal coating, laser engraving and spraying processing procedure, makes the surface of this metal-plated rete 12 the fold micro-structural occur, makes the outward appearance of finished product have various color surface, has the effect that improves the product surcharge.
In sum, the utlity model has following all advantage:
1, coating structure in metal surface of the present utility model is utilized the fold micro-structural of this metal coating laminar surface, to produce various color change, wherein this metal-plated rete able to produce metal texture and metal effect, but this fold micro-structural then reflection ray is dazzled color effect with generation, cooperate the surface of pattern, and then make the changeable optics form of coating structure in metal surface of the present utility model.
2, made electronic product casing and the traditional finished product of the utility model compared, and has more the color effect of dazzling of metal-like and high texture, makes this electronic product casing can present the optical effect of different color with beholder's angle.
The above only is a preferable possible embodiments of the present utility model; non-so limit to claim scope of the present utility model; so the equivalence techniques that all utilization the utility model specifications and accompanying drawing content are done changes, and all is contained in the claim protection domain of the present utility model.