CN107719264A - A kind of manufacture method of vehicle label - Google Patents
A kind of manufacture method of vehicle label Download PDFInfo
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- CN107719264A CN107719264A CN201710961675.6A CN201710961675A CN107719264A CN 107719264 A CN107719264 A CN 107719264A CN 201710961675 A CN201710961675 A CN 201710961675A CN 107719264 A CN107719264 A CN 107719264A
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- Prior art keywords
- base material
- coating
- label
- sign
- manufacture method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/005—Manufacturers' emblems, name plates, bonnet ornaments, mascots or the like; Mounting means therefor
Abstract
This project is related to advanced manufacture and automatic automobile, rail vehicle correlative technology field, more particularly to applied to a kind of advanced manufacturing methods of vehicle label in advanced drive assist system.The present invention includes step successively:Injection:The base material for sign of various moulding is formed by injection;Pretreatment of base material:Gained base material is subjected to dedusting, destatics processing;Vacuum Deposition:Two layers of vacuum-coating is formed in substrate surface by the method for Vacuum Deposition, indium alloy coating and oxide protective coating, gross thickness are less than 1um, and indium alloy coating thickness control is in 10~60nm;Strip:Vacuum-coating is subjected to strip processing again according to the demand coating paint resistance coating of different vehicle labels;Colored paint layer;Protective paint layer;Bonded with pedestal;Test package;The vehicle label preparation method of the present invention, can ensure that label has good metal-like, enough intensity, very high stability, very long life-span and good production qualification rate, while do not influence the performance of radar performance again.
Description
Technical field
This project is related to advanced manufacture and automatic automobile, rail vehicle correlative technology field, more particularly to applied to height
A kind of advanced manufacturing methods of vehicle label in level drive assist system.
Background technology
Vehicle label is a mark of automobile brand, it is often attached to automobile head and the tailstock, and position as its name suggests
The purpose between two parties, playing sign and being easy to identification is put, vehicle label typically has bright as silver region and color and luster region, such as popular label
Just the circle only outside " V " " W " pattern and pattern is silver bright color, and remaining is color and luster area, and the bright as silver region of various labels is each not
It is identical.Existing vehicle need to ensure radar wave by not influenceing radar work due to being equiped with radar, therefore for vehicle label
Make, for the vehicle with self-adaption cruise system, preposition radar is used to judge the distance with front truck, in response to
The parameters such as the distance adjust speed etc., for this kind of application, vehicle label can thoroughly radar wave it is quite important.
Traffic safety is always the focus of vast social concerns, to ensure security during car steering, countries in the world pair
The research and development of automobile collision preventing technology has put into substantial amounts of human and material resources and financial resources.Self-adaption cruise system(Adaptive
Cruise Control abbreviations ACC)Application driver can be allowed to keep appropriate speed, and control the distance with front vehicles.It is logical
Trailer-mounted radar scanning road ahead is crossed, and coordinates the distance for making vehicle keep setting with front truck, front truck speed with wheel speed sensors
Vehicle self-actuating brake and safe distance between vehicles is kept during reduction, when front truck speed improves, vehicle can also raise speed to setting speed automatically.By
This can reduce manually operated action, substantially increase the comfortableness and security of driving.
Prior art such as patent CN183842B provide the metallic luster dress in a kind of course of the beam for radar installations
Adorn formed products, include transparent resin layer form matrix, the tin and/or tin alloy layers being arranged on the back side of the matrix, and
The decoration enamelled coating being arranged on the back side of tin and/or tin alloy layers.Formed products described in the patent have the tones such as similar chromium plating
Fine metal designs, and ensures that the round transmission loss of radar millimeter wave is 1.6~1.8db.
Patent CN103956573A provides a kind of preparation method of radar protective cover, the thermoprint step in its preparation process
Can not effectively avoid the factors such as dust in air, spot, steam from influenceing, so as to reduce the outward appearance compliance rate of product and
Product qualification rate, the thickness of the plating indium alloy nano metal layer in step described in the patent is 5-50 nanometers, although ensuring radar
The round transmission loss of millimeter wave is below 2db, but the qualification rate of the product in actual production process only has 60%~68%.
The development of current auto industry, higher requirement is proposed for the manufacturing technology of vehicle label, has both been had good
Metal-like, enough intensity, very high stability, very long service life and good production qualification rate, it is while again right
The transmission of radar electromagnetic wave influences the minimum performance without influenceing radar performance, but prior art is difficult to meet requirements above.
The content of the invention
The invention provides a kind of manufacture method of vehicle label.Both intrinsic bright as silver, hard of most vehicle label had been remained
Hard and distinctive outward appearance, requirement of the round transmission loss of radar wave in below 1.4db is disclosure satisfy that again.
In order to reach the purpose, the present invention adopts the following technical scheme that:
Logo board manufacture method, it is characterised in that comprise the following steps successively:
(1), injection:Transparent base forms the base material for sign of various moulding by way of injection molding;
(2), pretreatment of base material:It is right(1)The base material for sign of formation carries out pre-treatment;
(3), Vacuum Deposition:It will pass through(2)Base material for sign after processing is by magnetron sputtering method or vacuum vapour deposition in its back side institute
There is region to form indium alloy layer and protective coating;
(4), strip:It will pass through(3)The protective coating and indium alloy layer of formation are according to the demand of different vehicle labels, it is necessary to bright as silver
The region coating paint resistance coating of color, uncoated paint resistance coating region are removed with the mode of physics or chemistry;
(5), colored paint layer:Passing through(4)Colored paint layer is coated on the surface of formation, meets that the color and luster of the exterior domain of silver bright color coating will
Ask, while can also play a part of protecting vacuum-coating;
(6), protective paint layer:Passing through(5)Sprayed protection enamelled coating on another surface of the base material for sign of gained;
(7)And pedestal bonds:It will pass through(6)The base material for sign of processing is bonded together with pedestal;
(8), test package:It will pass through(7)The label of processing carries out the examination and test of products, labelled after the assay was approved, preserves to storehouse
Storehouse.
The advantages of preparation method of the present invention is:
(1)Vacuum Deposition is directly carried out after the completion of pretreatment of base material, reduces spray-applied primer or thermoprint or printing etc. in other schemes
Process, so as to evade risk caused by the dust in production process, spot, steam etc..Qualification rate shadow of this scheme to finished product
Maximum, the notable highest of qualification rate is rung, from 60%~68% lifting to more than 85%, so as to which the production capacity of production is improved, and is shown
Work reduces production cost.
(2)Vacuum coating is the key technology of the present invention, especially plates indium alloy, its plastics thickness control 10~
60nm, the stability of film layer is enhanced, so as to improve the qualification rate of production, it is desirable to which thickness is averagely free much smaller than electronics
Journey, and metal thin film structure is not reaching to completely continuously, causes the sheet resistance value of the metallic film very big, i.e., and square is electric
Resistance is more than 20 kilo-ohms.Using easy instrument in production, pass through the test of sheet resistance, so that it may judge product radar substantially
Whether the attenuation rate that ripple passes through label is up to standard, and its attenuation rate can be controlled in below 1.4db.
(3)Withdrawal plating is applied on vehicle label, strong adaptability, disclosure satisfy that a variety of different structures and moulding, by silver
Bright area is removed by the unwanted vacuum-coating of external application in a manner of physics or chemistry, meets all kinds of vehicle label different shapings
Requirement.
(4)Protective paint layer is sprayed after strip again, base material for sign can be avoided to occur because of factors such as outside air or sunlight
Cracking, the defects of turning to be yellow after aging, while water imbibition of the label more resistant to the physical impacts such as rubble, and label can be enable
Less than 0.1%, it is ensured that radar wave can in general rainy weather also can normal transmission, wherein UV using ultraviolet irradiate
Solidify and more environmentally-friendly.
(5)According to the through characteristic of millimeter wave, the integral thickness of base material and material on millimeter wave penetrate influence it is very big, because
This its thickness in the range of the cone cylinder of radar needs to be consistent.Meet the moulding of vehicle label using transparent base, simultaneously
It is bonded together plus pedestal to meet the integral thickness requirement of label, and according to the different emission of radar, to determine to mark
The thickness requirement of board.The material dielectric constant of transparent base and pedestal should try one's best consistent or close, while transparent base and pedestal
Gap answer < 0.2mm, otherwise air between the two can impact or increase decay to radar wave energy.
Preferably, the step(1)In transparent base be makrolon material, heat-resistant impact, creep resistance and chi
Very little stability is good.
Preferably, the step(2)In pre-treatment be specifically to base material electrostatic precipitation,
Temperature baking destressing, then with hairbrush dedusting, finally uses Dry ice cleaning.It is certain by being baked to
Temperature removes the stress of base material, then by neutralizing substrate surface electrostatic, zero is taken away with high velocity air
Part surface dirt, substrate surface is then acted mechanically on using hairbrush particularly ostrich mao mao brush again,
By disturbing souring, depart from substrate surface dust, and be entrained by the flow of air, again finally
Base material is cleaned using dry ice, carries out pre-treatment thorough, to ensure the quality of plated film.
Preferably, the step(3)It is middle that the indium alloy layer is coated with using vacuum vapour deposition
And protective layer, wherein the evaporation source for being coated with protective layer uses e type electron guns.
Preferably, the step(3)Middle indium alloy layer and protective coating gross thickness are less than 1 μm.Preferably, the step
Suddenly(3)Middle indium alloy layer thickness control is in 10~60nm, film
Thickness is much smaller than electron mean free path, and metal thin film structure is not reaching to completely continuously.
Preferably, the step(3)The surface square resistance of middle indium alloy layer is 20,000
It is more than Europe.
Preferably, the step(3)It is 0~10% that the metal ingredient of middle indium alloy layer, which is indium and accounts for mass percent,
Tin, gallium, silver, the one or more of germanium.Metal ingredient selection and each coating mating reaction of nano metal layer, both had label
Good metallic luster, and can is almost undamped when making the millimeter wave of radar emission to back across the label, ensure that radar makes
Validity.
It is furthermore preferred that the indium alloy is the indium alloy of the silver containing 5wt%.The composition can make label have good metal light
Damp, enough intensity and the radar Attenuation rate of very little.
Preferably, the protection film layer in the step (3) is oxide membranous layer, its composition is silica.The oxygen
The silica composition and thickness of compound protective layer help to protect nano metal layer, can make the millimeter wave of radar emission back and forth
Pass through almost undamped during the protective cover, and can makes label have more preferable metallic luster, ensure that the distinguishing mark of label
The validity used with radar, so that it is guaranteed that the security of driving.
Preferably, the step(4)In paint resistance coating be resin varnish, resin used should be resistance in selected resin varnish
The resin of strong basicity, preferably bisphenol-A epoxide vinylester resin, the resin varnish are the colored varnish and anti-highly basic, and energy is well
Protect label to need the bright as silver effect in bright as silver region while protect covered coating not corroded by sodium hydroxide solution.
Preferably, the step(4)In chemical mode used in solution be NaOH solution.To not have by NaOH solution
There is the coating by paint resistance coating protection to dissolve away, solution temperature control strip best results in 60 DEG C~80 DEG C, this temperature range, move back
After the completion of plating, sign surface need to be cleaned with pure water, it is ensured that without residual agent.The NaOH solution solvent is deionized water or steaming
Distilled water, solute include NaOH, NaSi03, 1-hydroxy ethylidene-1,1-diphosphonic acid sodium, corrosion inhibiter and surfactant, wherein NaOH and NaSi03
It is in strong basicity to be dissolved in solution after water, and the unwanted coating chemically reactive of substrate surface, removes the unwanted coating in surface, hydroxyl
For base ethylene-diphosphonic acid sodium as chelating agent, can generate existing coordinate bond with metal indium ion has the compound of covalent bond, inhibition again
Agent protects base material for sign not corroded by NaOH solution, the one or more in optional sodium aluminate, natrium nitrosum, sodium nitrate, excellent
Sodium aluminate is selected, surfactant reduces the surface tension of water and helps silica uniform dissolution in NaOH solution, optional fourth
Base sodium naphthalene sulfonate, solute each component content are respectively:NaOH(25~50g/L), sodium metasilicate(150~185 g/L), hydroxy ethylidene
Di 2 ethylhexyl phosphonic acid sodium(10~50g/L), corrosion inhibiter(2~5g/L), sodium butylnaphthalenesulfonate(1~5 g/L).Because of rational component and content
Design, can quickly and evenly return the unwanted coating of sign surface, while reduce the damage to base material for sign, this strip
Liquid has the features such as production cost is low, and stability is high and service life is long.
The preparation method of the preferably NaOH solution comprises the following steps:
(1), in a reservoir add 1L deionized water;(2), add 2~5g of corrosion inhibiter, be heated to 60 DEG C, constant temperature stirring
60min;
(3), add the g of sodium butylnaphthalenesulfonate 1~5, stir 30min;
(4), after temperature is reduced to room temperature, add sodium hydroxide 25~50g, the g of sodium metasilicate 150~185 and 1-hydroxy ethylene-1,1-diphosphonic
Sour 10~50g of sodium, continue stirring to returning to room temperature.
Preferably, the step(6)Middle sprayed protective paint is UV or PU.By spraying UV or PU in sign surface, solution
The defects of certainly base material light fugitive is shone, turned to be yellow after aging, while suction of the label more resistant to the physical impacts such as rubble, and label can be made
It is water-based to be less than 0.1%, it is ensured that radar wave can in general rainy weather also can normal transmission, wherein UV uses ultraviolet
Irradiation solidification and it is more environmentally-friendly.
Preferably, the step(7)Base material for sign after processing and pedestal are bonded in one with glue or other modes
Rise, and < 0.2mm are answered in the gap of base material for sign and pedestal, and ensure to form a wall thickness integrally uniform vehicle label.It is transparent
Bonded after the completion of label with pedestal with the mode of glue, while the thickness of label is controlled according to radar frequency, pedestal back side patch
Upper one-way ventilating film, discharge the steam between transparent label and pedestal, while steam will not enter, so that will not be because steam be to thunder
Generation interference is penetrated up to ripple.
Brief description of the drawings
Fig. 1 is each hierarchical structure of vehicle label of the present invention and vehicle label and the schematic diagram of radar bearing relation;
Fig. 2 is the process route chart of the vehicle label preparation method of one embodiment of the present of invention;
Wherein, 1- base material for sign, 2- vacuum-coatings, 3- colored paint layers, 4- dope layers, 5- pedestals
Embodiment
Embodiment one
The vehicle label of certain car model, product structure profile are shown in Fig. 1.Process route is shown in Fig. 2.
It is 24.1GHZ that the label, which corresponds to radar frequency, it is desirable to part gross thickness(Profile 1-2)For 7.65 ± 0.15mm,
Transparent base and pedestal are all thermoplastic engineering plastic makrolon material, heat-resistant impact, creep resistance and good stability of the dimension.
Transparent base forms the base material for sign 1 of certain moulding of needs by way of injection molding.
After base material for sign injection molding, 110 DEG C are needed, 2h carries out destressing baking, and after the completion of baking, base material for sign is loaded
In Vacuum Deposition frock, dedusting, destatic.
Vacuum-coating 2 divides two layers, and gross thickness is less than 1 μm, plates indium alloy layer for the first time, thickness control in 10nm~25nm,
It is required that thickness is much smaller than electron mean free path, and metal thin film structure is not reaching to completely continuously, so that the metal
The sheet resistance value of film is very big, i.e., square resistance is more than 20 kilo-ohms.Second of applying silicon oxide oxide skin(coating), to protect
Indium alloy layer.
The label that Vacuum Deposition is completed, the position for retaining coating is being needed to coat paint resistance coating, to protect required coating,
It is then placed in progress strip processing in deployed NaOH solution, it is desirable to which solution temperature is at 70 DEG C, after the completion of strip, need to use pure water
Sign surface is cleaned, there must not be residual agent, strip region is formed with dotted line on Fig. 1 and presented.
Colored paint layer 3 is sprayed, the color requirement in other regions of vacuum-coating is black, so spray black paints, while oil
Paint can also play a part of protecting vacuum-coating, and not interfere with the outward appearance and performance of base material for sign.
The defects of being shone for base material for sign light fugitive selected by solution, dope layer 4 is formed in transparent substrate surface spraying UV, is ensured
Label is not in the defects of jaundice after aging, while label can be made to can be resistant to rubble impact, and the water imbibition of label is small
, can also being capable of normal transmission in general rainy weather so as to ensure label radar wave in 0.1%.
Bonded after the completion of transparent label with pedestal 5 with the mode of glue, while control product radar wave to penetrate region of acceptance
Thickness control in the range of 7.65 ± 0.15mm, the gap between base material for sign and pedestal is less than 0.2 mm, and the pedestal back side is sticked
One-way ventilating film, discharge the steam between transparent label and pedestal, while steam will not enter, and will not be worn because of steam to radar wave
Interference is produced thoroughly.
Product is labelled through after the assay was approved, preserves to warehouse.
Embodiment two
The vehicle label of certain car model, product structure profile are shown in Fig. 1.Process route is shown in Fig. 2.
It is 24.1GHZ that the label, which corresponds to radar frequency, it is desirable to part gross thickness(Profile 1-2)For 7.65 ± 0.15mm,
Transparent base and pedestal are all thermoplastic engineering plastic makrolon material, heat-resistant impact, creep resistance and good stability of the dimension.
Transparent base forms the base material for sign 1 of certain moulding of needs by way of injection molding.Base material for sign is molded into
After type, 110 DEG C are needed, 2h carries out destressing baking, has toasted
Cheng Hou, base material for sign is fitted into Vacuum Deposition frock, dedusting, destaticed.
Vacuum-coating 2 divides two layers, and gross thickness is less than 1 μm, plates indium alloy layer for the first time, and thickness control, in 25nm-45nm
Thickness is asked to be much smaller than electron mean free path, and metal thin film structure is not reaching to completely continuously, so that the metal foil
The sheet resistance value of film is very big, i.e., square resistance is more than 20 kilo-ohms.Second of applying silicon oxide oxide skin(coating), to protect indium
Alloy-layer.
The label that Vacuum Deposition is completed, needing the position for retaining coating to coat paint resistance coating, to protective coating, be then placed in
Strip processing is carried out in deployed NaOH solution, it is desirable to which solution temperature is at 70 DEG C, after the completion of strip, need to clean label with pure water
Surface, must not there is residual agent, and strip region is formed with dotted line on Fig. 1 and presented.
Colored paint layer 3 is sprayed, the color requirement in other regions of vacuum-coating is black, so spray black paints, while oil
Paint can also play a part of protecting vacuum-coating, and not interfere with the outward appearance and performance of base material for sign.
The defects of being shone for base material for sign light fugitive selected by solution, dope layer 4 is formed in transparent substrate surface spraying UV, is ensured
Label is not in the defects of jaundice after aging, while label can be made to can be resistant to rubble impact, and the water imbibition of label is small
, can also being capable of normal transmission in general rainy weather so as to ensure label radar wave in 0.1%.
Bonded after the completion of transparent label with pedestal 5 with the mode of glue, while control product radar wave to penetrate region of acceptance
Thickness control in the range of 7.65 ± 0.15mm, the gap between base material for sign and pedestal is less than 0.2 mm, and the pedestal back side is sticked
One-way ventilating film, discharge the steam between transparent label and pedestal, while steam will not enter, and will not be worn because of steam to radar wave
Interference is produced thoroughly.
Product is labelled through after the assay was approved, preserves to warehouse.
, embodiment three
The vehicle label of certain car model, product structure profile are shown in Fig. 1.Process route is shown in Fig. 2.
It is 24.1GHZ that the label, which corresponds to radar frequency, it is desirable to part gross thickness(Profile 1-2)For 7.65 ± 0.15mm,
Transparent base and pedestal are all thermoplastic engineering plastic makrolon material, heat-resistant impact, creep resistance and good stability of the dimension.
Transparent base forms the base material for sign 1 of certain moulding of needs by way of injection molding.Base material for sign is molded into
After type, 110 DEG C are needed, 2h carries out destressing baking, has toasted
Cheng Hou, base material for sign is fitted into Vacuum Deposition frock, dedusting, destaticed.
Vacuum-coating 2 divides two layers, and gross thickness is less than 1 μm, plates indium alloy layer for the first time, thickness control in 45nm~60nm,
It is required that thickness is much smaller than electron mean free path, and metal thin film structure is not reaching to completely continuously, so that the metal
The sheet resistance value of film is very big, i.e., square resistance is more than 20 kilo-ohms.Second of applying silicon oxide oxide skin(coating), to protect
Indium alloy layer.
The label that Vacuum Deposition is completed, needing the position for retaining coating to coat paint resistance coating, to protective coating, be then placed in
Strip processing is carried out in deployed NaOH solution, it is desirable to which solution temperature is at 70 DEG C, after the completion of strip, need to clean label with pure water
Surface, must not there is residual agent, and strip region is formed with dotted line on Fig. 1 and presented.
Colored paint layer 3 is sprayed, the color requirement in other regions of vacuum-coating is black, so spray black paints, while oil
Paint can also play a part of protecting vacuum-coating, and not interfere with the outward appearance and performance of base material for sign.
The defects of being shone for base material for sign light fugitive selected by solution, dope layer 4 is formed in transparent substrate surface spraying UV, is ensured
Label is not in the defects of jaundice after aging, while label can be made to can be resistant to rubble impact, and the water imbibition of label is small
, can also being capable of normal transmission in general rainy weather so as to ensure label radar wave in 0.1%.
Bonded after the completion of transparent label with pedestal 5 with the mode of glue, while control product radar wave to penetrate region of acceptance
Thickness control in the range of 7.65 ± 0.15mm, the gap between base material for sign and pedestal is less than 0.2 mm, and the pedestal back side is sticked
One-way ventilating film, discharge the steam between transparent label and pedestal, while steam will not enter, and will not be worn because of steam to radar wave
Interference is produced thoroughly.
Product is labelled through after the assay was approved, preserves to warehouse.
Example IV
With embodiment one, difference is the NaOH solution needed for strip process, and its solvent is 1L deionized waters, and solute is
NaOH25g, sodium metasilicate 150g, 1-hydroxy ethylidene-1,1-diphosphonic acid sodium 10g, sodium aluminate 2g, sodium butylnaphthalenesulfonate 1g, its preparation method bag
Include as follows:
(1), in a reservoir add 1L deionized water;
(2), add sodium aluminate 2g, be heated to 60 DEG C, constant temperature stirring 60min;
(3), add the g of sodium butylnaphthalenesulfonate 1, stir 30min;
(4), after temperature is reduced to room temperature, add sodium hydroxide 25g, sodium metasilicate 150g and 1-hydroxy ethylidene-1,1-diphosphonic acid sodium 10g, after
Continuous stirring is to returning to room temperature.
Embodiment five
With embodiment one, difference is the NaOH solution needed for strip process, and its solvent is 1L deionized waters, and solute is
NaOH50g, sodium metasilicate 185g, 1-hydroxy ethylidene-1,1-diphosphonic acid sodium 50g, sodium aluminate 5g, sodium butylnaphthalenesulfonate 5g, its preparation method bag
Include as follows:
(1), in a reservoir add 1L deionized water;
(2), add sodium aluminate 5g, be heated to 60 DEG C, constant temperature stirring 60min;
(3), add the g of sodium butylnaphthalenesulfonate 5, stir 30min;
(4), after temperature is reduced to room temperature, add sodium hydroxide 50g, sodium metasilicate 185g and 1-hydroxy ethylidene-1,1-diphosphonic acid sodium 50g, after
Continuous stirring is to returning to room temperature.
Embodiment six
With embodiment one, difference is the NaOH solution needed for strip process, and its solvent is 1L deionized waters, and solute is
NaOH38g, sodium metasilicate 168g, 1-hydroxy ethylidene-1,1-diphosphonic acid sodium 30g, sodium aluminate 3g, sodium butylnaphthalenesulfonate 3g, its preparation method bag
Include as follows:
(1), in a reservoir add 1L deionized water;
(2), add sodium aluminate 3g, be heated to 60 DEG C, constant temperature stirring 60min;
(3), add the g of sodium butylnaphthalenesulfonate 3, stir 30min;
(4), after temperature is reduced to room temperature, add sodium hydroxide 38g, sodium metasilicate 168g and 1-hydroxy ethylidene-1,1-diphosphonic acid sodium 30g, after
Continuous stirring is to returning to room temperature.
Inventor respectively prepares 1L samples according to the NaOH solution collocation method in example IV, five, six, detects various kinds respectively
The base material etching extent of product, molten indium amount and stability, detection method are:
(1), base material etching extent:Indium substrate will not be plated and immerse decoating liquid sample 60min, substrate mass loses before and after weighing;
(2), molten indium amount:Pure indium is completely immersed in decoating liquid sample until reacting complete, pure indium mass loss before and after weighing;
(3), stability:Decoating liquid sample is statically placed under 40 DEG C of environment, measurement NaOH valid density is reduced to the day needed for 1%
Number.
Testing result is as follows:NaOH solution base material rate of corrosion amount 0.05g in example IV, molten indium amount 140g, stability 188
My god;NaOH solution base material etching extent 0.06g in embodiment five, molten indium amount 156g, stability 196 days;NaOH is molten in embodiment six
Liquid-based material etching extent 0.04g, molten indium amount 168g, stability 210 days.NaOH solution can be clearly seen from above testing result
Collocation method category embodiment six is optimal, and decoating liquid is stable, and strip effect is good, and strip speed is fast, and technique is simple.
Comparative example
The embodiment in existing patent CN103956573A, the vehicle label of certain car model are contrasted, the label corresponds to radar frequency
Rate is 24.1GHZ, it is desirable to which part gross thickness is 7.65 ± 0.15mm, and transparent base and pedestal are all the poly- carbon of thermoplastic engineering plastic
Acid esters material, heat-resistant impact, creep resistance and good stability of the dimension.The manufacturing process of this product mainly has injection, pre-treatment, scalded
Print, for the first time plating, second plating, sprayed protection enamelled coating, dispensing, milling cast gate, test package.
Injection:Transparent base forms the base material for sign of certain moulding of needs by way of injection molding.
Pre-treatment:After base material for sign injection molding, 110 DEG C are needed, 2h carries out destressing baking, and electrostatic is carried out after having toasted city
Dedusting.
Thermoprint:Do not need bright as silver region to be covered with frock label, then needed according to label on base material for sign surface
Scald black film or printing color film layer.
Plate for the first time:With magnetron sputtering method or vacuum vapour deposition, be coated with a nanometer indium alloy layer, control its thickness 10nm~
60nm, and sheet resistance is more than 20 kilo-ohms.
Second of plating:Silicon dioxide layer of protection is coated with magnetron sputtering method or electron beam vacuum plating method.
Sprayed protection enamelled coating:Spray UV paints again on silicon dioxide layer of protection surface, also sprayed on another surface of base material for sign
UV paints are applied, are solidified by ultraviolet irradiation.
Dispensing:Base material for sign is set to be combined closely with base with dotting glue method.
Milling cast gate:Material handle milling unnecessary on injection molding body is fallen.
Test package:Mark is sticked after the examination and test of products is qualified, delivers to warehouse preservation.
Inventor passes through the repeated multiple times experiment to embodiment one, two, three and comparative example, and to being produced
The product come carries out the detection of outward appearance and attenuation rate and counts the qualification rate and attenuation rate of product, and embodiment one is come out
Qualification rate be 86%, attenuation rate is less than 1.4db;The qualification rate that embodiment two is come out is 87%, and attenuation rate is less than
1.3db;The qualification rate that embodiment three is come out is 86%, and attenuation rate is less than 1.4db;What comparative example was come out
Qualification rate is 65%, and attenuation rate is in 1.8-2.0db or so.Significantly improved so as to significantly find out that the optimization of technique changes
The qualification rate of product, substantially increases the benefit of production, while also improves the attenuation rate of product.
The qualification rate that label is improved while inventor reduces label attenuation rate has carried out multiple experiment, finds full
The duplicature gross thickness that sufficient Vacuum Deposition is plated is less than 1um, indium alloy thickness 25nm~45nm therein, indium alloy layer surface square
More than 20 kilo-ohms of resistance and not up to continuous structure, when label is less than these conditions of 0.2mm with pedestal bonding post gap, gained mark
The attenuation rate of board is minimum, is below 1.3db, while the qualification rate of label reaches more than 85%.But in actual production, it is also necessary to
In view of the cost of material in itself, and cost needed for nanometer film thickness control is so not necessarily all select these optimal
Part.
Manufacture method of the present invention on vehicle label, this method can provide it is a kind of both had good metal-like,
Enough intensity, very high reliability and very long service life, at the same again transmission on radar electromagnetic wave influence it is minimum and not
The label that radar performance plays is influenceed, this label is applicable the various radar systems with Hyundai Motor installation, can effectively ensured
Traffic safety, avoid some traffic accidents effectively caused by radar shadown or radar wave transmission attenuation.Pass through the present invention's
Vehicle label preparation method, the attenuation rate of label can be ensured while below 1.4db, the qualification rate of label reach 85% with
On.It should be pointed out that this specific embodiment is only explanation of the invention, it is not limitation of the present invention, for this area
Technical staff for, without departing from the structure of the invention, various modifications and improvements can be made, these also should
It is considered as protection scope of the present invention, these effects and practical applicability for implementing all without the influence present invention.This application claims
Protection domain should be defined by the content of its claim, and the record such as embodiment in specification can be used for power of interpretation
The content that profit requires.
Claims (10)
- A kind of 1. manufacture method of vehicle label, it is characterised in that:It the described method comprises the following steps:(1) it is molded:Transparent base forms the base material for sign of various moulding by way of injection molding;(2) pretreatment of base material:It is right(1)The base material for sign of formation carries out pre-treatment;(3) Vacuum Deposition:It will pass through(2)Base material for sign after processing owns by magnetron sputtering method or vacuum vapour deposition at its back side Region forms indium alloy layer and protective coating;(4) strip:It will pass through(3)The protective coating and indium alloy layer of formation are according to the demand of different vehicle labels, it is necessary to bright as silver The region coating paint resistance coating of color, uncoated paint resistance coating region are removed with the mode of physics or chemistry;(5) colored paint layer:Passing through(4)Coat colored paint layer in the surface of formation;(6) protective paint layer:Passing through(5)Sprayed protection enamelled coating on another surface of the base material for sign of gained;(7) bonded with pedestal:It will pass through(6)The base material for sign of processing is bonded together with pedestal;(8) test package.
- A kind of 2. manufacture method of vehicle label according to claim 1, it is characterised in that:The step(2) to mark in The pre-treatment of board base material includes destressing baking, dedusting, destaticed.
- A kind of 3. manufacture method of vehicle label according to claim 1, it is characterised in that:Indium closes in the step (3) Layer gold and protective coating gross thickness are less than 1 μm.
- 4. a kind of manufacture method of vehicle label according to claim 3 is characterized in that:The indium alloy thickness degree control System is in 10~60nm.
- A kind of 5. manufacture method of vehicle label according to claim 3, it is characterised in that:The surface of the indium alloy layer Square resistance is more than 20 kilo-ohms.
- A kind of 6. manufacture method of vehicle label according to claim 3, it is characterised in that:The metal of the indium alloy layer Composition is indium and accounts for tin, gallium, silver, the one or more of germanium that mass percent is 0~10%.
- A kind of 7. manufacture method of vehicle label according to claim 3, it is characterised in that:The protective coating is oxidation Thing protective layer, its composition are silica.
- A kind of 8. manufacture method of vehicle label according to claim 1, it is characterised in that:The step(4)In change Solution used in mode is NaOH solution.
- A kind of 9. manufacture method of vehicle label according to claim 1, it is characterised in that:The step(6)Spray guarantor Vernix is UV or PU.
- A kind of 10. manufacture method of vehicle label according to claim 1, it is characterised in that:The step(7)Part processing Base material for sign afterwards and pedestal glue or other means are bonded together, and < 0.2mm are answered in the gap of label and pedestal, and really It is conformal into the overall uniform vehicle label of a wall thickness.
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CN108466592A (en) * | 2018-03-20 | 2018-08-31 | 台州市黄岩瑞丽模塑股份有限公司 | The processing method that automobile tail logo lights structure and logo panel |
CN109743830A (en) * | 2019-02-25 | 2019-05-10 | 四川亿豪机械制造有限公司 | A kind of car trim processing technology |
CN110718140A (en) * | 2019-10-11 | 2020-01-21 | 梁妙林 | Processing technology of split type label |
CN110846619A (en) * | 2019-10-29 | 2020-02-28 | 宁波四维尔工业有限责任公司 | Surface coloring process for plastic automobile label |
CN112170142A (en) * | 2020-10-23 | 2021-01-05 | 富晟亿美汽车光电零部件(长春)有限公司 | Automobile exterior decoration metallized surface treatment method |
CN113183394A (en) * | 2021-04-27 | 2021-07-30 | 延康汽车零部件如皋有限公司 | ACC standard disc production process |
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CN114182190A (en) * | 2021-11-30 | 2022-03-15 | 昆山英利悦电子有限公司 | Automobile license plate frame chromium carbide coating process |
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CN113682241A (en) * | 2021-09-10 | 2021-11-23 | 宁波信泰机械有限公司 | Label product integrating millimeter wave radar and having heating and light-emitting functions |
CN114182190A (en) * | 2021-11-30 | 2022-03-15 | 昆山英利悦电子有限公司 | Automobile license plate frame chromium carbide coating process |
CN114193889A (en) * | 2021-12-09 | 2022-03-18 | 江阴市羽项汽车饰件有限公司 | Production process of cover plate with low millimeter wave transmission attenuation and cover plate |
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