CN101565815A - Uncontinuous high-metallic coating method - Google Patents

Uncontinuous high-metallic coating method Download PDF

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Publication number
CN101565815A
CN101565815A CNA2009100382560A CN200910038256A CN101565815A CN 101565815 A CN101565815 A CN 101565815A CN A2009100382560 A CNA2009100382560 A CN A2009100382560A CN 200910038256 A CN200910038256 A CN 200910038256A CN 101565815 A CN101565815 A CN 101565815A
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China
Prior art keywords
coating
spraying
uncontinuous
indium
plated film
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CNA2009100382560A
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Chinese (zh)
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CN101565815B (en
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欧胤
张学章
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东莞劲胜精密组件股份有限公司
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Publication of CN101565815A publication Critical patent/CN101565815A/en
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Publication of CN101565815B publication Critical patent/CN101565815B/en

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Abstract

The invention belongs to the technical field of vacuum coating, and in particular relates to an uncontinuous high-metallic coating method, which comprises the following steps: firstly, spray coating of a UV primer, namely coating the UV primer on the coated surface of a product, roasting the coated product in an oven, and curing the roasted product in a UV furnace; secondly, stannum-indium coating, namely placing a tungsten filament of a coating machine into a stannum-indium coating material, placing the product after spray coating of the UV primer into a vacuum furnace turntable of the coating machine for electrostatic dust collection of the product, performing vacuum pumping after sealing the coating machine, performing preheating after vacuum pumping, and evaporating the stannum-indium coating material for coating; and thirdly, spray coating of a UV finishing coat, namely coating the UV finishing coat on the coated surface of the product after stannum-indium coating, roasting the coated product in the oven, and curing the roasted product in the UV furnace. The product coated by the method is not conductive; the membrane layer is white and bright; the light transmittance is good; the metallic texture is strong; and the weathering resistance is good.

Description

Uncontinuous high-metallic coating method
Technical field:
The invention belongs to technical field of vacuum plating, particularly uncontinuous high-metallic coating method.
Background technology:
Plastic parts such as phone housing generally will carry out vacuum plating, because mobile phone is an electrified body, therefore, when carrying out vacuum plating, require to plate non-conductive film at phone housing.At present, the non-conductive film coating process more generally reaches maturation, evaporation coating technology after the general employing preheating, and mostly use same process parameter and material, promptly use metallic tin to carry out evaporation coating, the tin material is easy color disunity in evaporate process, and low in glossiness, color is yellow partially, and metal-like is poor.Under natural light environment, because very easily oxidation of tin makes the product background color yellow partially.
Summary of the invention:
The objective of the invention is to provides a kind of uncontinuous high-metallic coating method at the deficiencies in the prior art, and the product non-conductive film Bai Erliang of this method plated film, transmittance is good, metal-like is strong, weather resistance is good.
For achieving the above object, the present invention adopts following technical scheme:
Uncontinuous high-metallic coating method may further comprise the steps:
Step 1: spraying UV priming paint
Under the environment of 10 ℃-35 ℃ of temperature, humidity 30%-80%, product to be coated is put on the automation line of a coating machine, the linear speed of a coating machine is (20 ± 2) Hz, carries out pre-treatment wiping and automatization electrostatic precipitation.To number in AKS198, the UV priming paint injection ion wind gun of paint viscosity for (8.0 ± 0.2) s and carry out automatic spraying, spray gun air pressure is (2.75 ± 0.75) kg/cm 2UV priming paint is sprayed on the face of product plated film, the thickness of spraying UV priming paint is (18 ± 2) um, the product of finishing spraying is put into baking box baking, and oven temperature is (45 ± 5) ℃, and storing time is 5~8min, to finish the product of baking again and cross the curing of UV stove, the UV stove comprises 4 UV lamps, wherein opens light in high light, 1 unlatching for 3, and the UV energy is (900 ± 100) mj/cm 2
Step 2: tin adds the indium plated film
Under the condition of 10 ℃-35 ℃ of temperature, humidity (65 ± 20) %, the tungsten filament of coating equipment is put into tin and is added indium film material, and tungsten filament weight is every of (0.25 ± 0.05) g/, and tin adds indium film material length and is (4.0 ± 1.5) cm.Product behind the spraying UV priming paint is put on the plated film product material loading tool horizontal stripe, and the tool horizontal stripe is put on the vacuum oven rotating disk of coating equipment, and product is carried out manual electrostatic precipitation.Vacuumize behind the sealing coating equipment, vacuumize final vacuum degree 〉=2.2 * 10 -2Pa.The beginning preheating, pre-pyrovoltage is (2.0 ± 1) V, and preheat curent is (650 ± 200) A, and be 40S warm up time.Evaporate tin and add indium film material plated film, vaporization voltage is (3.75 ± 0.5) V, and evaporation current is (1000 ± 400) A, and evaporation time is (20 ± 5) S, and coating film thickness is (50 ± 30) nm.
Step 3: spraying UV finish paint
Under the environment of temperature (20 ± 15) ℃, humidity 30%-80%, the product that tin is added behind the indium plated film is put on the automation line of No. two coating machines, the linear speed of No. two coating machines is (18 ± 2) Hz, carries out manual dedusting with the electrostatic precipitation rifle, and ion electrostatic precipitation rifle carries out automatic electrostatic dust collection again.To be numbered in AKS407:AKS409UV, the UV finish paint injection spray gun of paint viscosity for (8 ± 0.2) s, spray gun air pressure is (2.5 ± 1) kg/cm 2, the UV finish paint being sprayed on the face of product plated film, thickness is (12 ± 2) um, and the product of finishing spraying is put into baking box baking, and oven temperature is (75 ± 5) ℃, and storing time is 5~8min.The product that baking is finished is crossed the UV stove and is solidified, and the UV stove comprises 4 UV lamps, and 4 UV lamps are opened high light, and the UV energy is (1000 ± 100) mj/cm 2
Beneficial effect of the present invention:
Uncontinuous high-metallic coating method of the present invention may further comprise the steps: step 1: spraying UV priming paint: UV priming paint is sprayed on the face of product plated film, the product of finishing spraying is put into the baking box baking, the product of finishing baking is crossed the UV stove solidify; Step 2: tin adds the indium plated film: put into tin at the tungsten filament of coating equipment and add indium film material, the product of finishing spraying UV priming paint is put on the vacuum oven rotating disk of coating equipment, product is carried out electrostatic precipitation, vacuumize behind the sealing coating equipment, begin preheating after vacuumizing, evaporate tin again and add indium film material plated film; Step 3: spraying UV finish paint: the UV finish paint sprayed to finish on the plated film face of product that tin adds the indium plated film, the product of finishing plated film is put into the baking box baking, the product of finishing baking is crossed the UV stove solidify; The product non-conductive film Bai Erliang of this method plated film, transmittance is good, metal-like is strong, weather resistance is good.
Embodiment:
The present invention is further illustrated with specific embodiment below:
Embodiment 1
Step 1: spraying UV priming paint
Under the environment of 10 ℃ of temperature, humidity 30%, product to be coated is put on the automation line of a coating machine, the linear speed of a coating machine is 18Hz, carries out pre-treatment wiping and automatization electrostatic precipitation.To number AKS198, paint in the UV priming paint injection ion wind gun that viscosity is 7.8s and carry out automatic spraying, spray gun air pressure be 2.0kg/cm 2UV priming paint is sprayed on the face of product plated film, the thickness of spraying UV priming paint is 16um, the product of finishing spraying is put into the baking box baking, and oven temperature is 40 ℃, and storing time is 5min, baked product being crossed the UV stove solidifies again, the UV stove comprises 4 UV lamps, wherein opens light in high light, 1 unlatching for 3, and the UV energy is 800mj/cm 2
Step 2: tin adds the indium plated film
Under the condition of 10 ℃ of temperature, humidity 45%, the tungsten filament of coating equipment is put into tin and is added indium film material, and tungsten filament weight is every of 0.2g/, and it is 2.5cm that tin adds indium film material length.Product behind the spraying UV priming paint is put on the plated film product material loading tool horizontal stripe, and the tool horizontal stripe is put on the vacuum oven rotating disk of coating equipment, and product is carried out manual electrostatic precipitation.Vacuumize behind the sealing coating equipment, vacuumize final vacuum degree 〉=2.2 * 10 -2Pa.The beginning preheating, pre-pyrovoltage is 1V, and preheat curent is 450A, and be 40S warm up time.Carry out evaporation coating again, vaporization voltage is 3.25V, and evaporation current is 600A, and evaporation time is 15S, and coating film thickness is 20nm.
Step 3: spraying UV finish paint
Under the environment of 5 ℃ of temperature, humidity 30%, the product that tin is added behind the indium plated film is put on the automation line of No. two coating machines, and the linear speed of No. two coating machines is 16Hz, carries out manual dedusting with the electrostatic precipitation rifle, and ion electrostatic precipitation rifle carries out automatic electrostatic dust collection again.To be numbered AKS407:AKS409UV, paint in the UV finish paint injection spray gun that viscosity is 7.8s, spray gun air pressure be 1.5kg/cm 2, the UV finish paint being sprayed on the face of product plated film, thickness is 10um, and the product of finishing spraying is put into the baking box baking, and oven temperature is 70 ℃, and storing time is 5min.The product that baking is finished is crossed the UV stove and is solidified, and the UV stove comprises 4 UV lamps, and 4 UV lamps are opened high light, and the UV energy is 900mj/cm 2
Embodiment 2
Step 1: spraying UV priming paint
Under the environment of 20 ℃ of temperature, humidity 50%, product to be coated is put on the automation line of a coating machine, the linear speed of a coating machine is 20Hz, carries out pre-treatment wiping and automatization electrostatic precipitation.To number AKS198, paint in the UV priming paint injection ion wind gun that viscosity is 8.0s and carry out automatic spraying, spray gun air pressure be 2.75kg/cm 2UV priming paint is sprayed on the face of product plated film, the thickness of spraying UV priming paint is 18um, the product of finishing spraying is put into the baking box baking, and oven temperature is 45 ℃, and storing time is 6min, baked product being crossed the UV stove solidifies again, the UV stove comprises 4 UV lamps, wherein opens light in high light, 1 unlatching for 3, and the UV energy is 900mj/cm 2
Step 2: tin adds the indium plated film
Under the condition of 20 ℃ of temperature, humidity 65%, the tungsten filament of coating equipment is put into tin and is added indium film material, and tungsten filament weight is every of 0.25g/, and it is 4.0cm that tin adds indium film material length.Product behind the spraying UV priming paint is put on the plated film product material loading tool horizontal stripe, and the tool horizontal stripe is put on the vacuum oven rotating disk of coating equipment, and product is carried out manual electrostatic precipitation.Vacuumize behind the sealing coating equipment, vacuumize final vacuum degree 〉=2.2 * 10 -2Pa.The beginning preheating, the pre-pyrovoltage of preheating is 2V, and preheat curent is 650A, and be 40S warm up time.Carry out evaporation coating again, vaporization voltage is 3.75V, and evaporation current is 1000A, and evaporation time is 20S, and coating film thickness is 50nm.
Step 3: spraying UV finish paint
Under the environment of 20 ℃ of temperature, humidity 50%, the product that tin is added behind the indium plated film is put on the automation line of No. two coating machines, and the linear speed of No. two coating machines is 18Hz, carries out manual dedusting with the electrostatic precipitation rifle, and ion electrostatic precipitation rifle carries out automatic electrostatic dust collection again.To be numbered AKS407:AKS409UV, paint in the UV finish paint injection spray gun that viscosity is 8.0s, spray gun air pressure be 2.5kg/cm 2, the UV finish paint being sprayed on the face of product plated film, thickness is 12um, and the product of finishing spraying is put into the baking box baking, and oven temperature is 75 ℃, and storing time is 6min.The product that baking is finished is crossed the UV stove and is solidified, and the UV stove comprises 4 UV lamps, and 4 UV lamps are opened high light, and the UV energy is 1000mj/cm 2
Embodiment 3
Step 1: spraying UV priming paint
Under the environment of 35 ℃ of temperature, humidity 80%, product to be coated is put on the automation line of a coating machine, the linear speed of a coating machine is 22Hz, carries out pre-treatment wiping and automatization electrostatic precipitation.To number AKS198, paint in the UV priming paint injection ion wind gun that viscosity is 8.2s and carry out automatic spraying, spray gun air pressure be 3.5kg/cm 2UV priming paint is sprayed on the face of product plated film, the thickness of spraying UV priming paint is 20um, the product of finishing spraying is put into the baking box baking, and oven temperature is 50 ℃, and storing time is 8min, baked product being crossed the UV stove solidifies again, the UV stove comprises 4 UV lamps, wherein opens light in high light, 1 unlatching for 3, and the UV energy is 1000mj/cm 2
Step 2: tin adds the indium plated film
Under the condition of 35 ℃ of temperature, humidity 85%, the tungsten filament of coating equipment is put into tin and is added indium film material, and tungsten filament weight is every of 0.30g/, and it is 5.5cm that tin adds indium film material length.Product behind the spraying UV priming paint is put on the plated film product material loading tool horizontal stripe, and the tool horizontal stripe is put on the vacuum oven rotating disk of coating equipment, and product is carried out manual electrostatic precipitation.Vacuumize behind the sealing coating equipment, vacuumize final vacuum degree 〉=2.2 * 10 -2Pa.The beginning preheating, pre-pyrovoltage is 3V, and preheat curent is 850A, and be 40S warm up time.Carry out evaporation coating again, vaporization voltage is 4.25V, and evaporation current is 1400A, and evaporation time is 25S, and coating film thickness is 80nm.
Step 3: spraying UV finish paint
Under the environment of 35 ℃ of temperature, humidity 80%, the product that tin is added behind the indium plated film is put on the automation line of No. two coating machines, and the linear speed of No. two coating machines is 20Hz, carries out manual dedusting with the electrostatic precipitation rifle, and ion electrostatic precipitation rifle carries out automatic electrostatic dust collection again.To be numbered AKS407:AKS409UV, paint in the UV finish paint injection spray gun that viscosity is 8.2s, spray gun air pressure be 3.5kg/cm 2, the UV finish paint being sprayed on the face of product plated film, thickness is 14um, and the product of finishing spraying is put into the baking box baking, and oven temperature is 80 ℃, and storing time is 8min.The product that baking is finished is crossed the UV stove and is solidified, and the UV stove comprises 4 UV lamps, and 4 UV lamps are opened high light, and the UV energy is 1100mj/cm 2
The above only is preferred embodiment of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.

Claims (10)

1, uncontinuous high-metallic coating method is characterized in that: may further comprise the steps:
Step 1, spraying UV priming paint: product to be coated is put on the automation line of a coating machine, carry out pre-treatment wiping and automatization electrostatic precipitation, to carry out automatic spraying in the UV priming paint injection spray gun, UV priming paint is sprayed on the face of product plated film, with finish spraying product put into baking box baking, finish and put into the UV stove after the baking and solidify;
Step 2, tin add the indium plated film: put into tin at the tungsten filament of coating equipment and add indium film material, product behind the spraying UV priming paint is put on the plated film product material loading tool horizontal stripe, the tool horizontal stripe is put on the vacuum oven rotating disk of coating equipment, product is carried out electrostatic precipitation, the sealing coating equipment, carry out preheating after vacuumizing, evaporation tin adds indium film material and carries out plated film;
Step 3, spraying UV finish paint: the product that tin is added behind the indium plated film is put on the automation line of No. two coating machines, carry out dedusting with the electrostatic precipitation rifle, carry out automatic electrostatic dust collection with ion electrostatic precipitation rifle again, the UV finish paint is injected in the spray gun, the UV finish paint is sprayed on the face of product plated film, the product of finishing spraying is put into baking box baking, finish and put into the UV stove after the baking and solidify.
2, uncontinuous high-metallic coating method according to claim 1 is characterized in that: the linear speed of a coating machine of described step 1 is (20 ± 2) Hz; Described spray gun is an ion wind gun, and spray gun air pressure is (2.75 ± 0.75) kg/cm 2The thickness of spraying UV priming paint is (18 ± 2) um.
3, uncontinuous high-metallic coating method according to claim 1 is characterized in that: described step 1 spraying UV priming paint carries out under the environment of 10 ℃-35 ℃ of temperature, humidity 30%-80%; Oven temperature is (45 ± 5) ℃, and storing time is 5~8min.
4, uncontinuous high-metallic coating method according to claim 1 is characterized in that: described step 1 UV stove comprises 4 UV lamps, wherein opens light in high light, 1 unlatching for 3, and the UV energy is (900 ± 100) mj/cm 2
5, uncontinuous high-metallic coating method according to claim 1 is characterized in that: described step 2 tungsten filament weight is every of (0.25 ± 0.05) g/, and tin adds indium film material length and is (4.0 ± 1.5) cm.
6, uncontinuous high-metallic coating method according to claim 1 is characterized in that: described step 2 coating equipment is worked under the condition of 10 ℃-35 ℃ of temperature, humidity (65 ± 20) %; The pre-pyrovoltage of preheating is (2.0 ± 1) V before the plated film, and preheat curent is (650 ± 200) A, and be 40S warm up time; It is (3.75 ± 0.5) V that evaporation tin adds the vaporization voltage that indium film material carries out plated film, and evaporation current is (1000 ± 400) A, and evaporation time is (20 ± 5) S; Vacuum tightness after vacuumizing 〉=2.2 * 10 -2Pa; Coating film thickness is (50 ± 30) nm.
7, uncontinuous high-metallic coating method according to claim 1 is characterized in that: the linear speed of No. two coating machines of described step 3 is (18 ± 2) Hz, and spray gun air pressure is (2.5 ± 1) kg/cm 2
8, uncontinuous high-metallic coating method according to claim 1 is characterized in that: described step 3 spraying UV finish paint carries out under the environment of temperature (20 ± 15) ℃, humidity 30%-80%; Oven temperature is (75 ± 5) ℃, and storing time is 5~8min.
9, uncontinuous high-metallic coating method according to claim 1 is characterized in that: described step 3 UV stove comprises 4 UV lamps, and 4 UV lamps are opened high light, and the UV energy is (1000 ± 100) mj/cm 2
10, uncontinuous high-metallic coating method according to claim 1 is characterized in that: the thickness of described step 3 spraying UV finish paint is (12 ± 2) um.
CN2009100382560A 2009-03-27 2009-03-27 Uncontinuous high-metallic coating method CN101565815B (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102226267A (en) * 2011-06-10 2011-10-26 谢德培 Device for continuously performing primer spraying, drying and electroplating in vacuum chamber
CN102366742A (en) * 2011-09-30 2012-03-07 东莞劲胜精密组件股份有限公司 Coating method for non-continuous high-metal-texture film layer
CN102416688A (en) * 2011-10-21 2012-04-18 东莞劲胜精密组件股份有限公司 Treatment process of injecting product in mold
CN103147045A (en) * 2013-03-27 2013-06-12 东莞劲胜精密组件股份有限公司 Metallized surface decorative finishing method of plastic shell
CN103173721A (en) * 2013-03-26 2013-06-26 东莞华清光学科技有限公司 Coating method for discontinuous mirror surface white film
CN103205715A (en) * 2013-04-01 2013-07-17 谢振华 Gasification coating method of low-melting-point metal
CN103702529A (en) * 2013-12-16 2014-04-02 东莞劲胜精密组件股份有限公司 Method for manufacturing shell of electronic product
CN104762595A (en) * 2014-01-07 2015-07-08 深圳市鼎盛达模具发展有限公司 Large-area plastic substrate surface non-conductive vacuum electroplating coating method
CN105018929A (en) * 2015-07-29 2015-11-04 广东欧珀移动通信有限公司 Shell and manufacturing method thereof
CN108246586A (en) * 2018-01-11 2018-07-06 惠州市纵胜电子材料有限公司 External coating technique and plank

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* Cited by examiner, † Cited by third party
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CN100365847C (en) * 2005-02-26 2008-01-30 吉林大学 Method for treating indium-tin oxide electrode of organic electroluminescent device
CN101362630A (en) * 2008-06-17 2009-02-11 刘昆虎 Insulating mold coating of transparent glass and manufacturing method thereof

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102226267B (en) * 2011-06-10 2013-01-16 谢德培 Device for continuously performing primer spraying, drying and electroplating in vacuum chamber
CN102226267A (en) * 2011-06-10 2011-10-26 谢德培 Device for continuously performing primer spraying, drying and electroplating in vacuum chamber
CN102366742A (en) * 2011-09-30 2012-03-07 东莞劲胜精密组件股份有限公司 Coating method for non-continuous high-metal-texture film layer
CN102366742B (en) * 2011-09-30 2013-12-18 东莞劲胜精密组件股份有限公司 Coating method for non-continuous high-metal-texture film layer
CN102416688A (en) * 2011-10-21 2012-04-18 东莞劲胜精密组件股份有限公司 Treatment process of injecting product in mold
CN102416688B (en) * 2011-10-21 2014-12-24 东莞劲胜精密组件股份有限公司 Treatment process of injecting product in mold
CN103173721A (en) * 2013-03-26 2013-06-26 东莞华清光学科技有限公司 Coating method for discontinuous mirror surface white film
CN103147045A (en) * 2013-03-27 2013-06-12 东莞劲胜精密组件股份有限公司 Metallized surface decorative finishing method of plastic shell
CN103147045B (en) * 2013-03-27 2016-03-02 东莞劲胜精密组件股份有限公司 A kind of metalized surface decoration treatment process of plastic casing
CN103205715A (en) * 2013-04-01 2013-07-17 谢振华 Gasification coating method of low-melting-point metal
CN103702529A (en) * 2013-12-16 2014-04-02 东莞劲胜精密组件股份有限公司 Method for manufacturing shell of electronic product
CN103702529B (en) * 2013-12-16 2016-09-07 东莞劲胜精密组件股份有限公司 Electronic product casing manufacture method
CN104762595A (en) * 2014-01-07 2015-07-08 深圳市鼎盛达模具发展有限公司 Large-area plastic substrate surface non-conductive vacuum electroplating coating method
CN105018929A (en) * 2015-07-29 2015-11-04 广东欧珀移动通信有限公司 Shell and manufacturing method thereof
CN108246586A (en) * 2018-01-11 2018-07-06 惠州市纵胜电子材料有限公司 External coating technique and plank

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