CN103361686A - Method for processing chromeplate effect on outer surface of cellphone model product - Google Patents
Method for processing chromeplate effect on outer surface of cellphone model product Download PDFInfo
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- CN103361686A CN103361686A CN201310314190XA CN201310314190A CN103361686A CN 103361686 A CN103361686 A CN 103361686A CN 201310314190X A CN201310314190X A CN 201310314190XA CN 201310314190 A CN201310314190 A CN 201310314190A CN 103361686 A CN103361686 A CN 103361686A
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Abstract
The present invention discloses a method for processing chromeplate effect on outer surface of a cellphone model product, comprising: preparing an epoxy resin coating covering the surface to be processed by using an epoxy resin primer; preparing a transparent first polyurethane coating covering the epoxy resin coating by a polyurethane primer; electroplating aluminum on the first polyurethane coating; preparing a transparent second polyurethane coating covering the electroplated aluminum coating by a polyurethane protective paint, wherein the hardness of the second polyurethane coating is less than that of the first polyurethane coating; dividing the surface to be processed into a chromeplate effect region and a non-chromeplate effect region, removing the second polyurethane coating and the electroplated aluminum coating in the non-chromeplate effect region by a laser marking machine, so that the first polyurethane coating in the non-chromeplate effect region is exposed. The method realizes the high efficiency machining of chromeplate effect on outer surface of the cellphone model product.
Description
Technical field
The present invention relates to the working method of mobile model product, relate in particular to a kind of working method of chromium-plating effect of outside surface of mobile model product.
Background technology
In the cell phone appearance development, the Designers is in order to verify appearance design effect, all can make actual mold product, and the effect of the technological effect of wishing mold product during near actual volume production.Just because of the restriction of the cost of manufacture of manufacturing technology, manufacture craft and the mold product of mold product, can cause the part technological effect to be difficult in mold product, realize.For mobile phone products, to realize at present the chromium-plating effect in screen or battery cover front, usually adopt gilding technology or IMD (IML) technology (decoration technique inside mold) during volume production, but in the production of mobile model product, because there is restriction in objective condition, then can not adopt above-mentioned two kinds of processing methodes.
Gilding technology is that gold stamping machine utilizes special-purpose silica gel mould gold stamping pool to be transferred to the technology of surface of plastic product under certain pressure and temperature condition.This kind method requires the outside curved surface of all mold products that need thermoprint identical, only in this way, after all parameter testings of gold stamping machine are finished, can produce in batches.Simultaneously, the unfavorable conditions such as thermoprint is imperfect, paste limit, unfairness also can appear in gilding technology.Yet, mold product is the 3D map file according to Designers's design, effect map file (CMF), printed text (Artwork), obtained by the processing of CNC numerically-controlled machine, all can stay the tool marks of cutter at the outside surface of mold product, to this, usually adopt hand lapping to eliminate this cutter trade, this just causes can having some differences between the outside curved surface of different mold products, thereby can not satisfy the requirement of gilding technology---every debugging is gold stamping machine once, can only process a mold product, for next mold product, need again again debugging machine.Therefore, gilding technology almost can not apply in the production of mold product.
In the batch production of mobile phone products, IMD (IML) technique is to realize the most frequently used processing method of product front chromium-plating effect.This arts demand is made the IMD injection mold, and uses special IMD ink for screen printing that pattern is printed on the IMD glue film.This explained hereafter cost is high, and the construction cycle is long, so also be not suitable for adopting in the production of mold product.Using chromium-plating effect at the Logo of mobile phone screen is very general way, in the production phase of mold product, usually the suggestion Designers simulates chromium-plating effect by the back up minute surface silver color at the mold product screen, but also there is gap in the appearance effect of this method than chromium-plating effect.
Summary of the invention
The invention provides a kind of working method of chromium-plating effect of the outside surface that is suitable for the mobile model product, the chromium-plating effect that the method obtains can fully reflect the appearance effect of design, simultaneously, the method greatly reduces the cost of manufacture of chromium-plating effect of the outside surface of mobile model product, has improved production efficiency.
Technical scheme provided by the invention is:
A kind of working method of chromium-plating effect of outside surface of mobile model product may further comprise the steps:
Step 1, at the work surface of mobile model product, use the epoxy resin primer preparation to cover the epoxy coating of described work surface, described work surface is the part of described outside surface at least;
Step 2, on described epoxy coating, use the polyurethane primer preparation to cover the first transparent polyurethane coating of described epoxy coating;
Step 3, on described the first polyurethane coating Electroplating Aluminum, obtain covering the Electroplating Aluminum coating of described the first polyurethane coating;
Step 4, on described Electroplating Aluminum coating, use the preparation of urethane protective paint to cover the second transparent polyurethane coating of described Electroplating Aluminum coating, the hardness of described the second polyurethane coating is less than the hardness of described the first polyurethane coating.
Step 5, described work surface is planned to chromium-plating effect zone and non-chromium-plating effect zone, use the laser marking machine removal to be positioned at the second polyurethane coating part and the Electroplating Aluminum coating layer portion in described non-chromium-plating effect zone, thereby the first polyurethane coating that is positioned at described non-chromium-plating effect zone is partly come out.
Preferably, in the working method of the chromium-plating effect of the outside surface of described mobile model product, in the described step 2, when applying load 1kg, the pencil hardness of measuring described the first polyurethane coating is 1H; In the described step 4, when applying load 1kg, the pencil hardness of measuring described the second polyurethane coating is HB.
Preferably, in the working method of the chromium-plating effect of the outside surface of described mobile model product, in the described step 2, the thickness of described the first polyurethane coating is 12～20 μ m; In the described step 4, the thickness of described the second polyurethane coating is 2～3 μ m.
Preferably, in the working method of the chromium-plating effect of the outside surface of described mobile model product, in the described step 1, the detailed process of preparation epoxy coating is: spray epoxy priming paint on the work surface of described mobile model product, be baked to epoxy resin primer with infrared oven afterwards and parch fully, storing temperature is 50～60 ℃ of temperature.
Preferably, in the working method of the chromium-plating effect of the outside surface of described mobile model product, in the described step 1, before spray epoxy priming paint on the work surface of described mobile model product, use successively No. 400 flint papers and No. 2500 described work surfaces of fine sandpaper hand lapping.
Preferably, in the working method of the chromium-plating effect of the outside surface of described mobile model product, in the described step 2, the detailed process for preparing the first polyurethane coating is: use bore to be the spray gun spraying polyurethane primer of 0.4mm, spraying air pressure is 1.5kg, toasted 2～3 hours under 55～65 ℃ with infrared oven afterwards, cold is put and was carried out described step 3 in 1 hour afterwards.
Preferably, in the working method of the chromium-plating effect of the outside surface of described mobile model product, in the described step 3, the detailed process of Electroplating Aluminum is: at first described mobile model product is hung in the cavity of electroplating device, electroplating device vacuumizes, the value of vacuumizing 3.0Pa slightly, meticulous value of vacuumizing 3.0 * 10
-2Pa or 3.0 * 10
-3Pa when the vacuum state of electroplating device reaches meticulous vacuum state, electroplates, and in the electroplating process, electroplating device hydraulic pressure is 1.5～1.6kg, and air pressure is 3.5～3.7kg, and voltage is 380V, and evaporation current is 2.5A, and evaporation time is 12s.
Preferably; in the working method of the chromium-plating effect of the outside surface of described mobile model product; in the described step 4; the detailed process for preparing the second polyurethane coating is: the spraying polyurethane protective paint; toasted 1 hour under 30～40 ℃ with infrared oven afterwards, cold is carried out described step 5 after putting half an hour.
Preferably, in the working method of the chromium-plating effect of the outside surface of described mobile model product, in the described step 5, use the laser marking machine removal to be positioned at the second polyurethane coating part and the Electroplating Aluminum coating layer portion in described non-chromium-plating effect zone, in the described laser marking machine working process, mark speed is set to 1500～1550mm/s, empty hop rate degree is 4000～4050mm/s, the Q frequency is 19.8～20kHz, and Q is released to 5～5.1 μ s, and electric current is 15～15.05mmA.
Preferably, in the working method of the chromium-plating effect of the outside surface of described mobile model product, also comprise:
Step 6, on the surface that described step 5 is obtained, use the preparation of described urethane protective paint to cover the 3rd polyurethane coating on described surface.
The present invention has following beneficial effect: the present invention realizes the chromium-plating effect of the outside surface of mobile model product, can fully reflect the appearance effect of design; Than gilding technology or IMD technology, production cost only is 1/50th, and production efficiency is improved greatly, and production rate is 10 times of volume production; Even different mold products is through after the hand lapping, outside curved surface is incomplete same, also can use method of the present invention and realize processing, and therefore, the present invention is suitable for the continuous production of chromium-plating effect of the outside surface of mobile model product.
Description of drawings
Fig. 1 is the schema of working method of chromium-plating effect of the outside surface of mobile model product of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing, can implement according to this with reference to the specification sheets literal to make those skilled in the art.
As shown in Figure 1, the invention provides a kind of working method of chromium-plating effect of the outside surface that is suitable for the mobile model product, the present invention can be good at realizing chromium-plating effect.
Mold product is to make according to the 3D map file of Designers's design, effect map file (CMF), printed text (Artwork), all can stay the tool marks of cutter through the product surface of CNC numerically-controlled machine processing, therefore, the outside surface that needs the hand lapping mold product is with the smooth finish on the surface that guarantees mold product.Each product appearance is as far as possible consistent.During hand lapping, need to be according to Designers's 3D map file, the milled processed mold product is in order to avoid changed Designers's appearance details, the Focussing when avoiding simultaneously mark to make.
Work surface of the present invention can be the surface of a certain parts of mold product, and " a certain parts " can be screen or the battery covers of mold product; Behind a plurality of assembling parts of mold product, the surface of a plurality of parts has just connected into the outside surface of mold product.Described work surface also can be the whole outside surface of mold product.
Prior art adopts UV series paint protection electrolytic coating usually, but the present invention adopts the celluloid paint of PU (urethane) character to protect electrolytic coating, makes the electrolytic coating can the variable color because of atmospheric oxidation.Step 104, the spraying thickness is controlled at 2～3 μ m, uses afterwards infrared oven 30～40 ℃ of lower bakings of temperature 1 hour, and half an hour is put in cold just can carry out laser marking technique.For convenience of description, the coating that the present invention obtains this step is called the second polyurethane coating, and this coating covers electrolytic coating.
It should be noted that the high concentrations of toluene diisocyanate that the first polyurethane coating of the present invention and the second polyurethane coating adopt is different, the hardness of the second polyurethane coating is lower, and the hardness of the first polyurethane coating is higher.This be because, the second polyurethane coating that laser marking machine needs to be positioned at non-chromium-plating effect zone is partly destroyed, hardness is too large, the mark effect of laser marking machine just is affected; Accordingly, the first polyurethane coating mainly plays the effect to the epoxy coating protection, and hardness is too small, might destroy epoxy coating, affects final appearance effect.Simultaneously, the thickness of the first polyurethane coating and the second polyurethane coating also can have influence on the mark effect of laser marking machine.Therefore, the present invention is preferred, applies in the situation of load 1kg, and the pencil hardness of measuring described the first polyurethane coating is 1H; Apply in the situation of load 1kg, the pencil hardness of measuring described the second polyurethane coating is HB.Described polyurethane primer is 10370 type products that the Shandong sharp chemical industry of gold company limited produces, and described urethane protective paint is the P790 type product that the Japan musashi paint company is produced.
Take the course of processing of the chromium-plating effect of the screen of mobile model product and battery cover as example, further specify effect of the present invention.Wherein, enforcement one to embodiment five relates to the screen of mobile model product, and embodiment six to embodiment ten relates to the battery cover of mobile model product.
For embodiment one to embodiment five, take the surface of screen unit as work surface, work surface is divided into again window area and non-window area, and the chromium-plating effect zone is positioned at non-window area.At first underhand polish is carried out on the surface of whole screen unit, and the preparation epoxy coating; After the preparation epoxy coating, utilize the laser marking machine thunder to undercut the window area, the window area is polished again, for non-window area, then still be coated with epoxy coating; Afterwards, prepare successively the first polyurethane coating, Electroplating Aluminum coating and the second polyurethane coating on the whole surface of screen unit, laser marking machine is destroyed the second polyurethane coating part and the Electroplating Aluminum coating layer portion of window area, also destroys the second polyurethane coating part and the Electroplating Aluminum coating layer portion in the non-chromium-plating effect zone of non-window area.The processing parameter of not explaining in following examples can draw from the content of foregoing description.
Embodiment one (1) preparation epoxy coating: epoxy resin primer is red, and storing temperature is 50 ℃, and storing time is 2 hours, and laser marking goes out the window area; (2) preparation the first polyurethane coating: coat-thickness is 12 μ m, and storing temperature is 50 ℃, and storing time is 2 hours; (3) Electroplating Aluminum: meticulous value of vacuumizing 3.0 * 10
-2Pa, in the electroplating process, electroplating device hydraulic pressure is 1.5kg, and air pressure is 3.5kg, and voltage is 380V, and evaporation current is 2.5A, evaporation time is 12s; (4) preparation the second polyurethane coating: coat-thickness is 2 μ m, and storing temperature is 30 ℃, and storing time is 1 hour; (5) laser marking: mark speed is set to 1500mm/s, and empty hop rate degree is 4000mm/s, and the Q frequency is 19.8kHz, and Q is released to 5 μ s, and electric current is 15mmA.
Embodiment two (1) preparation epoxy coatings: epoxy resin primer is red, and storing temperature is 60 ℃, and storing time is 2 hours, and laser marking goes out the window area; (2) preparation the first polyurethane coating: coat-thickness is 15 μ m, and storing temperature is 60 ℃, and storing time is 2 hours; (3) Electroplating Aluminum: consistent with the processing parameter of Electroplating Aluminum step among the embodiment one; (4) preparation the second polyurethane coating: coat-thickness is 2 μ m, and storing temperature is 30 ℃, and storing time is 1 hour; (5) laser marking: consistent with the processing parameter of laser marking step among the embodiment one.
Embodiment three (1) preparation epoxy coatings: epoxy resin primer is grey, and storing temperature is 60 ℃, and storing time is 2 hours, and laser marking goes out the window area; (2) preparation the first polyurethane coating: coat-thickness is 20 μ m, and storing temperature is 65 ℃, and storing time is 3 hours; (3) Electroplating Aluminum: consistent with the processing parameter of Electroplating Aluminum step among the embodiment one; (4) preparation the second polyurethane coating: coat-thickness is 3 μ m, and storing temperature is 40 ℃, and storing time is 1 hour; (5) laser marking: consistent with the processing parameter of laser marking step among the embodiment one.
Embodiment four (1) preparation epoxy coatings: epoxy resin primer is grey, and storing temperature is 60 ℃, and storing time is 2 hours, and laser marking goes out the window area; (2) preparation the first polyurethane coating: coat-thickness is 18 μ m, and storing temperature is 60 ℃, and storing time is 3 hours; (3) Electroplating Aluminum: meticulous value of vacuumizing 3.0 * 10
-3Pa, electroplating device hydraulic pressure are 1.6kg, and air pressure is 3.7kg, and voltage is 380V, and evaporation current is 2.5A, and evaporation time is 12s; (4) preparation the second polyurethane coating: coat-thickness is 2 μ m, and storing temperature is 30 ℃; (5) laser marking: mark speed is set to 1550mm/s, and empty hop rate degree is 4050mm/s, and the Q frequency is 20kHz, and Q is released to 5.1 μ s, and electric current is 15.05mmA.
Embodiment five (1) preparation epoxy coatings: epoxy resin primer is black, and storing temperature is 60 ℃, and storing time is 2 hours, and laser marking goes out the window area; (2) preparation the first polyurethane coating: coat-thickness is 20 μ m, and storing temperature is 65 ℃, and storing time is 3 hours; (3) Electroplating Aluminum: consistent with the processing parameter of Electroplating Aluminum step among the embodiment four; (4) preparation the second polyurethane coating: coat-thickness is 2 μ m, and storing temperature is 30 ℃; (5) laser marking: consistent with the processing parameter of laser marking step among the embodiment four.
The outward appearance in the chromium-plating effect zone of the mold product screen surface that embodiment one to embodiment five finally obtains presents brilliant white, and the metal sense is strong, and appearance effect is good; The color in non-chromium-plating effect zone is accurate, and appearance effect is good.
For embodiment six to embodiment ten, with the surface of battery cover as work surface, the surface of battery cover be divided into non-chromium-plating effect zone and chromium-plating effect regional.
Embodiment six (1) preparation epoxy coatings: epoxy resin primer is red, and storing temperature is 50 ℃, and storing time is 2 hours; (2) preparation the first polyurethane coating: coat-thickness is 14 μ m, and storing temperature is 52 ℃, and storing time is 2 hours; (3) Electroplating Aluminum: meticulous value of vacuumizing 3.0 * 10
-2Pa, in the electroplating process, electroplating device hydraulic pressure is 1.5kg, and air pressure is 3.5kg, and voltage is 380V, and evaporation current is 2.5A, evaporation time is 12s; (4) preparation the second polyurethane coating: coat-thickness is 2 μ m, and storing temperature is 30 ℃, and storing time is 1 hour; (5) laser marking: mark speed is set to 1500mm/s, and empty hop rate degree is 4000mm/s, and the Q frequency is 19.8kHz, and Q is released to 5 μ s, and electric current is 15mmA.
Embodiment seven (1) preparation epoxy coatings: epoxy resin primer is red, and storing temperature is 50 ℃, and storing time is 2 hours; (2) preparation the first polyurethane coating: coat-thickness is 18 μ m, and storing temperature is 60 ℃, and storing time is 3 hours; (3) Electroplating Aluminum: consistent with the processing parameter of Electroplating Aluminum step among the embodiment six; (4) preparation the second polyurethane coating: coat-thickness is 2 μ m, and storing temperature is 30 ℃, and storing time is 1 hour; (5) laser marking: consistent with the processing parameter of laser marking step among the embodiment six.
Embodiment eight (1) preparation epoxy coatings: epoxy resin primer is grey, and storing temperature is 50 ℃, and storing time is 2 hours; (2) preparation the first polyurethane coating: coat-thickness is 12 μ m, and storing temperature is 50 ℃, and storing time is 2 hours; (3) Electroplating Aluminum: consistent with the processing parameter of Electroplating Aluminum step among the embodiment six; (4) preparation the second polyurethane coating: coat-thickness is 2 μ m, and storing temperature is 30 ℃, and storing time is 1 hour; (5) laser marking: consistent with the processing parameter of laser marking step among the embodiment six.
Embodiment nine (1) preparation epoxy coatings: epoxy resin primer is grey, and storing temperature is 50 ℃, and storing time is 2 hours; (2) preparation the first polyurethane coating: coat-thickness is 16 μ m, and storing temperature is 55 ℃, and storing time is 2.5 hours; (3) Electroplating Aluminum: meticulous value of vacuumizing 3.0 * 10
-3Pa, electroplating device hydraulic pressure are 1.6kg, and air pressure is 3.7kg, and voltage is 380V, and evaporation current is 2.5A, and evaporation time is 12s; (4) preparation the second polyurethane coating: coat-thickness is 3 μ m, and storing temperature is 40 ℃, and storing time is 1 hour; (5) laser marking: mark speed is set to 1500mm/s, and empty hop rate degree is 4000mm/s, and the Q frequency is 19.8kHz, and Q is released to 5 μ s, and electric current is 15mmA.
Embodiment ten (1) preparation epoxy coatings: epoxy resin primer is black, and storing temperature is 50 ℃, and storing time is 2 hours; (2) preparation the first polyurethane coating: coat-thickness is 12 μ m, and storing temperature is 50 ℃, and storing time is 2 hours; (3) Electroplating Aluminum: consistent with the processing parameter of Electroplating Aluminum step among the embodiment nine; (4) preparation the second polyurethane coating: coat-thickness is 3 μ m, and storing temperature is 40 ℃, and storing time is 1 hour; (5) laser marking: consistent with the processing parameter of laser marking step among the embodiment nine.
The outward appearance in the chromium-plating effect zone on the battery cover surface of the mold product that embodiment six to embodiment ten finally obtains presents brilliant white, and the metal sense is strong, and appearance effect is good; But not the chromium-plating effect field color is accurate, and appearance effect is good.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in specification sheets and the embodiment, it can be applied to various suitable the field of the invention fully, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend of describing.
Claims (10)
1. the working method of the chromium-plating effect of the outside surface of a mobile model product is characterized in that, may further comprise the steps:
Step 1, at the work surface of mobile model product, use the epoxy resin primer preparation to cover the epoxy coating of described work surface, described work surface is the part of described outside surface at least;
Step 2, on described epoxy coating, use the polyurethane primer preparation to cover the first transparent polyurethane coating of described epoxy coating;
Step 3, on described the first polyurethane coating Electroplating Aluminum, obtain covering the Electroplating Aluminum coating of described the first polyurethane coating;
Step 4, on described Electroplating Aluminum coating, use the preparation of urethane protective paint to cover the second transparent polyurethane coating of described Electroplating Aluminum coating, the hardness of described the second polyurethane coating is less than the hardness of described the first polyurethane coating.
Step 5, described work surface is planned to chromium-plating effect zone and non-chromium-plating effect zone, use the laser marking machine removal to be positioned at the second polyurethane coating part and the Electroplating Aluminum coating layer portion in described non-chromium-plating effect zone, thereby the first polyurethane coating that is positioned at described non-chromium-plating effect zone is partly come out.
2. the working method of the chromium-plating effect of the outside surface of mobile model product as claimed in claim 1 is characterized in that, in the described step 2, when applying load 1kg, the pencil hardness of measuring described the first polyurethane coating is 1H; In the described step 4, when applying load 1kg, the pencil hardness of measuring described the second polyurethane coating is HB.
3. the working method of the chromium-plating effect of the outside surface of mobile model product as claimed in claim 2 is characterized in that, in the described step 2, the thickness of described the first polyurethane coating is 12～20 μ m; In the described step 4, the thickness of described the second polyurethane coating is 2～3 μ m.
4. the working method of the chromium-plating effect of the outside surface of mobile model product as claimed in claim 1, it is characterized in that, in the described step 1, the detailed process of preparation epoxy coating is: spray epoxy priming paint on the work surface of described mobile model product, be baked to epoxy resin primer with infrared oven afterwards and parch fully, storing temperature is 50～60 ℃ of temperature.
5. the working method of the chromium-plating effect of the outside surface of mobile model product as claimed in claim 4, it is characterized in that, in the described step 1, before spray epoxy priming paint on the work surface of described mobile model product, use successively No. 400 flint papers and No. 2500 described work surfaces of fine sandpaper hand lapping.
6. the working method of the chromium-plating effect of the outside surface of mobile model product as claimed in claim 3, it is characterized in that, in the described step 2, the detailed process for preparing the first polyurethane coating is: use bore to be the spray gun spraying polyurethane primer of 0.4mm, spraying air pressure is 1.5kg, toasted 2～3 hours under 55～65 ℃ with infrared oven afterwards, cold is put and was carried out described step 3 in 1 hour afterwards.
7. the working method of the chromium-plating effect of the outside surface of mobile model product as claimed in claim 3, it is characterized in that, in the described step 3, the detailed process of Electroplating Aluminum is: at first described mobile model product is hung in the cavity of electroplating device, electroplating device vacuumizes, the value of vacuumizing 3.0Pa slightly, meticulous value of vacuumizing 3.0 * 10
-2Pa or 3.0 * 10
-3Pa when the vacuum state of electroplating device reaches meticulous vacuum state, electroplates, and in the electroplating process, electroplating device hydraulic pressure is 1.5～1.6kg, and air pressure is 3.5～3.7kg, and voltage is 380V, and evaporation current is 2.5A, and evaporation time is 12s.
8. the working method of the chromium-plating effect of the outside surface of mobile model product as claimed in claim 3; it is characterized in that; in the described step 4; the detailed process for preparing the second polyurethane coating is: the spraying polyurethane protective paint; toasted 1 hour under 30～40 ℃ with infrared oven afterwards, cold is carried out described step 5 after putting half an hour.
9. the working method of the chromium-plating effect of the outside surface of mobile model product as claimed in claim 3, it is characterized in that, in the described step 5, use the laser marking machine removal to be positioned at the second polyurethane coating part and the Electroplating Aluminum coating layer portion in described non-chromium-plating effect zone, in the described laser marking machine working process, mark speed is set to 1500～1550mm/s, empty hop rate degree is 4000～4050mm/s, the Q frequency is 19.8～20kHz, and Q is released to 5～5.1 μ s, and electric current is 15～15.05mmA.
10. such as the working method of the chromium-plating effect of the outside surface of each described mobile model product in the claim 6 to 9, it is characterized in that, also comprise:
Step 6, on the surface that described step 5 is obtained, use the preparation of described urethane protective paint to cover the 3rd polyurethane coating on described surface.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108486620A (en) * | 2018-01-31 | 2018-09-04 | 厦门建霖健康家居股份有限公司 | A kind of method that plating is stopped in zinc alloy workpiece inner cavity |
| CN113119623A (en) * | 2020-01-16 | 2021-07-16 | 大族激光科技产业集团股份有限公司 | Laser processing method of attached icon |
| CN114603259A (en) * | 2022-01-20 | 2022-06-10 | 维达力实业（赤壁）有限公司 | Method for treating surface of curtain coating cover plate |
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| KR20090020661A (en) * | 2009-01-13 | 2009-02-26 | 구자은 | Primer coating composition for steel plate |
| CN101623687A (en) * | 2009-07-31 | 2010-01-13 | 徐为尔 | Electroplating process for metal surface and metal tube produced thereby |
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| CN108486620A (en) * | 2018-01-31 | 2018-09-04 | 厦门建霖健康家居股份有限公司 | A kind of method that plating is stopped in zinc alloy workpiece inner cavity |
| CN113119623A (en) * | 2020-01-16 | 2021-07-16 | 大族激光科技产业集团股份有限公司 | Laser processing method of attached icon |
| CN114603259A (en) * | 2022-01-20 | 2022-06-10 | 维达力实业（赤壁）有限公司 | Method for treating surface of curtain coating cover plate |
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