CN104858085B - The etch process and the spraying coating process using tool covered on spray finishing jig, tool - Google Patents

The etch process and the spraying coating process using tool covered on spray finishing jig, tool Download PDF

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Publication number
CN104858085B
CN104858085B CN201510202937.1A CN201510202937A CN104858085B CN 104858085 B CN104858085 B CN 104858085B CN 201510202937 A CN201510202937 A CN 201510202937A CN 104858085 B CN104858085 B CN 104858085B
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finishing jig
sprayed
spray finishing
spray
upper lid
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CN104858085A (en
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温兵
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Shenzhen Jingermei Technology Co ltd
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0292—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work devices for holding several workpieces to be sprayed in a spaced relationship, e.g. vehicle doors spacers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
    • B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002—Pretreatement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention discloses a kind of spray finishing jig, including upper lid and lower cover, the lower cover is provided with multiple first locating dowels, multiple the first positioning holes corresponding with first locating dowel are covered with described, the upper lid is additionally provided with multiple spraying grooves and multiple emptiness avoiding holes for being used to expose product to be sprayed, the tool also includes the nut that locking mechanism is constituted with first locating dowel, and the upper lid is made using etch-forming.The spraying coating process sprayed the invention also discloses the etch process of the upper lid of the spray finishing jig and using the spray finishing jig.Spray finishing jig design is easy, technical maturity, and making is simple, with low cost and production efficiency is high, and storage is convenient to be hardly damaged again, can infinitely be reused, then complicated product causes the bad phenomenon of drain spray or long-pending oil all without appearance excessively covering.

Description

The etch process and the spraying coating process using tool covered on spray finishing jig, tool
Technical field
The present invention relates to spray finishing jig, more particularly to a kind of spray finishing jig, the etch process that covers on the tool and make With the spraying coating process of the spray finishing jig.
Background technology
In plastic surface processing, it is necessary to which spray finishing jig sprays to load product auxiliary, and existing spray finishing jig is equal at present For plastic cement spray finishing jig.However, plastic cement spray finishing jig continue to use always design mould structure, editor cutter track, CNC, lathe, electric discharge, The fabrications such as line cuts, electroplates or polished, assembles, detecting, die trial, injection, clamping, spraying.With the development in spraying market, Spraying technology and equipment can increasingly tend to be ripe, under keen competition environment, spraying effect and quality of the market to product It is required that all greatly promoting, high-quality spraying has become irresistible development trend.Plastic cement spray finishing jig production process is answered Miscellaneous, cost hold high height, low production efficiency, product side easily excessively covering cause drain spray or long-pending oil, space-consuming to be unfavorable for depositing, Easily scrap, can not reuse.
The content of the invention
In order to solve above-mentioned the deficiencies in the prior art, the invention provides one kind design simplicity, technical maturity, letter is made Single, with low cost and production efficiency is high, storage is convenient to be hardly damaged again, the spray finishing jig that can infinitely reuse, then complicated Product all without occur excessively covering cause the bad phenomenons such as drain spray or long-pending oil, overcome the numerous and complicated of traditional plastic cement spray finishing jig Manufacture and design, cost is higher, production efficiency is low and easily causes drain spray or long-pending oil, but it is more difficult the problem of be used repeatedly. The spraying coating process sprayed present invention also offers the etch process of the upper lid of the spray finishing jig and using the spray finishing jig.
The technical problems to be solved by the invention are achieved by the following technical programs：
A kind of spray finishing jig, including upper lid and lower cover, the lower cover are provided with multiple first locating dowels, it is described on be covered with Multiple the first positioning holes corresponding with first locating dowel, the upper lid is additionally provided with multiple sprays for being used to expose product to be sprayed Painted groove and multiple emptiness avoiding holes, the tool also include the nut that locking mechanism is constituted with first locating dowel；It is described it is upper lid be Metal material, is made using etch-forming.
Preferably, the metal be stainless steel, copper alloy titanium, titanium alloy, mild steel, high-carbon steel, copper and its alloy, aluminium and Any of its alloy.
Preferably, the nut is flexible glue nut.
Preferably, first locating dowel is the locating dowel of staged first.
Preferably, the cross section of the spraying groove or emptiness avoiding hole is rectangle, square, circular or irregular shape.
Preferably, the product to be sprayed is mobile phone side key.
A kind of etch process of upper lid, comprises the following steps：
1）Oil removal treatment, for workpiece to be etched to be cleaned, oil removing surface cleaning；
2）Coating, the workpiece surface coating photoresists after oil removing, then carry out photoresists exposure by the superstructure pattern Light simultaneously develops；
3）Etching, is etched by etching solution to the metal position that the workpiece exposes；
4）The demoulding, removes the remaining glued membrane of the workpiece surface after etching, then is cleaned and dried obtained upper lid.
A kind of spraying coating process of the spray finishing jig, comprises the following steps：
1）By on assembling product to be sprayed to above-mentioned spray finishing jig；
2）Cleaned with white spirit, keep cleaning, no spot；
3）Treat sprayed product and carry out UV basecoat paints, 60 ~ 75 °C of lower heat cure 1h；
4）Carry out after UV finish paint sprayings, first 50 ~ 60 °C of high temperature 3 ~ 5min of levelling, then 25 °C of low temperature levelling 1min；Use again 800 ~ 900mj/Cm of exposure energy2Ultraviolet light solidified, the thickness of the UV finish paints is 10 ~ 40 μm；Wherein
5）Execution conditions are 45 ° ± 5 ° of angle of gun, 55 ~ 75%RH of humidity during spraying；15 ~ 20cm of spray gun distance；Gun slot 1.2 ~ 1.6mm of footpath.
The present invention has the advantages that：Spray finishing jig design is easy, technical maturity, makes simple, with low cost And production efficiency is high, storage is convenient to be hardly damaged again, can infinitely be reused, then complicated product is excessive all without occurring Covering causes the bad phenomenon of drain spray or long-pending oil；The tool is provided with emptiness avoiding hole, treats the position of the thimble in sprayed product and is kept away Vacancy is managed, with cover locking above and below not influenceing；The tool is convenient to operate and solid using the first locating dowel and the locking mechanism of nut It is fixed, and locking is firm.The upper lid of stainless steel type is made by etch process, the technical maturity makes simply and cost is relatively low, solution The problem of existing plastic cement spray finishing jig production process complexity, high cost, low production efficiency of having determined；The spraying of the present invention is used Be not in the bad phenomenon that excessive covering causes drain spray or long-pending oil when tool is sprayed, particularly for complex product, Effectively increase spray efficiency and coating quality.
Brief description of the drawings
Fig. 1 is the structural decomposition diagram of one embodiment of the invention；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the bottom schematic view of lower cover of the present invention.
Embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Fig. 1 to 3 is refer to, which show a kind of spray finishing jig, including the upper lid 2 and lower cover 1 being oppositely arranged, the upper lid It is used to accommodate product 3 to be sprayed between 2 and lower cover 1, the lower cover 1 is provided with multiple first locating dowels towards the upper side of lid 2 11, the upper lid 2 is provided with multiple first positioning holes 211 corresponding with first locating dowel 11, and the upper lid 2 is additionally provided with multiple Spraying groove 22 and multiple emptiness avoiding holes 23 for exposing product 3 to be sprayed.The material of the upper lid 2 be metal material, preferably but Stainless steel is not limited to, titanium, titanium alloy, mild steel, high-carbon steel, copper and its alloy, aluminium and its alloy is can also be, preferably It is made by etch-forming.The lower cover can be plastic cement, but be not limited to this.
The tool also includes the nut 14 that locking mechanism is constituted with first locating dowel 11, will by the locking mechanism Product 3 to be sprayed is fixed between upper and lower covers 1.There is the glue-feeder of multiple thimbles position and mold injection, institute on product 3 to be sprayed Stating emptiness avoiding hole 23 includes the first emptiness avoiding hole 231 and the second emptiness avoiding hole 232, and first, second emptiness avoiding hole 231,232 is respectively with entering Jiao Kou empty avoidings corresponding with thimble position, in case thimble position and glue-feeder influence being locked for upper and lower covers 1.Product 3 to be sprayed is also Including multiple second locating dowels 31, preferably four the second locating dowels 31 are distributed in the corner of the product to be sprayed.On described Lid 2 also includes multiple second positioning holes 212 corresponding with second locating dowel 31, the second locating dowel 31 of product 3 to be sprayed Through second positioning hole 212 and cover upper cap nut and be locked.
It is preferred that but do not limit ground, first locating dowel 11 is the locating dowel of staged first, and the nut 14 is flexible glue spiral shell Cap 14, when being locked, the nut 14 is pressed to be pressed in first locating dowel 11 can be achieved to be locked, side Convenient to operate is fixed.
It is preferred that but do not limit ground, the multiple first locating dowel 11 is 6 the first locating dowels 11.
It is preferred that but do not limit ground, the spraying groove 22 or the cross section of emptiness avoiding hole 23 are rectangle, square, circular or irregular Shape.
It is preferred that but do not limit ground, the bottom of lower cover 1 is provided with screens 13, conveniently implements the tool and sprayed on spraying coating line Apply.
It is preferred that but do not limit ground, the lower cover 1 is provided with multiple the 3rd positioning holes 12 for being used to position product 3 to be sprayed.
It is preferred that but do not limit ground, the tool is used to spray mobile phone side key（Preferably conjoined key）, the tool can be provided with two rows For the spraying groove 22 of spraying, each row can be provided with 4 pairs of spraying grooves 22, i.e., disposable sprayable 16 mobile phone side keys.The spray Painted groove pattern can be designed as the case may be.
Concrete operations are as follows：Before spraying, the second locating dowel on product to be sprayed positions through the second of upper lid and uses spiral shell After cap sleeve presses pressure in the second locating dowel, i.e., product to be sprayed is locked on upper lid, the spraying groove of upper lid is used to expose Product needs the position sprayed, and the multiple glue-feeders and thimble of product to be sprayed position can be each passed through first and second of lid Emptiness avoiding hole, it is to avoid the locking of lid and product to be sprayed in the presence influence of thimble position；The 3rd positioning hole by lower cover will be will treat Sprayed product fixed cover is in the top of lower cover；The upper positioning hole of lid first is enclosed in the first locating dowel of lower cover again, then by spiral shell Cap sleeve is in the first locating dowel and presses pressure, that is, realizes and the upper lid of product to be sprayed and spray finishing jig is locked with lower cover assembling After good, by the screens of lower cover bottom by lower cover fixed placement on spraying line, be transported in spray room, realization is once sprayed 16 or more products, effectively reduce flow chart, save manpower, reduce production cost, improve product quality, improve Production efficiency；And the tool can infinitely be reused, then complicated product causes drain spray all without there is excessively covering Or the bad phenomenon of long-pending oil.
Present invention also offers a kind of etch process of the upper lid, comprise the following steps：
（1）Oil removal treatment, for workpiece to be etched to be cleaned at 50 ~ 60 DEG C, the surface cleaning such as oil removing；The workpiece Preferably stainless steel work-piece, but be not limited to this.
（2）Coating, the workpiece surface coating photoresists after oil removing, then carry out photoresists exposure by the superstructure pattern Light simultaneously develops；Wherein, total gas pressure is 6 ~ 8kg/cm during coating2, the lattice of speed 3 ~ 6 toast 10min at 75 DEG C；Conditions of exposure is true Reciprocal of duty cycle is more than 70cmHg, exposure guide rule 6 ~ 8（Lattice）；Development conditions are development point 40 ~ 50%, developing powder 18 ~ 35（Frequency modulation）, development 28 ~ 32 DEG C of cylinder fluid temperature；1.5 ~ 2.5kg/cm of power is sprayed above and below development section2；Solution level Na2CO3:0.8~1.2%；Circulation Wash 1 ~ 2kg/cm of pressure2。
（3）Etching, is etched by etching solution to the metal position that the workpiece exposes；It is preferred that but do not limit, for Copper alloy workpiece, using iron chloride etching solution, the etching solution includes 180 ~ 220g/L FeCl3, 20 ~ 80ml/L HCl, etching temperature 40 ~ 50 DEG C of degree, etching uses water pump circulation stirring simultaneously；Etch about 50 ~ 120min；For Al alloy parts, using alkaline chlorine Change copper etchant solution, the etching solution includes 100 ~ 150g/L CuCl2、70~120g/L NH3, pH value is maintained between 8.0 ~ 8.8, is lost 45 ~ 55 DEG C of temperature is carved, about 30 ~ 80min is etched；For stainless steel work-piece, using acid copper chloride etching liquid, the etching solution includes 180~220g/L CuCl2, 100 ~ 180ml/L HCl, 45 ~ 55 DEG C of etch temperature, etch about 30 ~ 80min；Etching pressure is 1.6~2.6kg/cm2。
（4）Demoulding, the lysate that the remaining glued membrane of the workpiece surface is passed through into concentration 15 ~ 20% after etching（Including but not It is limited to depainting water）Remove（60 ~ 80 DEG C of solution temperature）, then clean and the obtained upper lid is dried at 60 ~ 80 DEG C.
The etch process is further illustrated below in conjunction with specific embodiment.
Embodiment 1
The present embodiment is etched shaping using stainless steel work-piece and the upper lid is made.
（1）Workpiece to be etched is cleaned at 50 DEG C, the surface cleaning such as oil removing；
（2）Coating, the workpiece surface coating photoresists after oil removing, then carry out photoresists exposure by the superstructure pattern Light simultaneously develops；Wherein, total gas pressure is 6kg/cm during coating2, the lattice of speed 3 toast 10min at 75 DEG C；Conditions of exposure is vacuum More than 70cmHg, exposure guide rule 6（Lattice）；Development conditions are development point 40%, developing powder 18（Frequency modulation）, development cylinder fluid temperature 28 ℃；Power 1.5kg/cm is sprayed above and below development section2；Solution level Na2CO3:0.8%；Circulating water wash pressure 1kg/cm2。
（3）Etching, is etched by etching solution to the metal position that the workpiece exposes；Etched using acidic copper chloride Liquid, the etching solution includes 180g/L CuCl2, 100ml/L HCl, 45 DEG C of etch temperature, etch about 80min；Pressure 1.6kg/ cm2；Ammoniacal liquor washes pressure 1.2kg/cm2；
（4）The demoulding, is removed the remaining glued membrane of the workpiece surface by the lysate of concentration 15% after etching（Dissolving temperature 60 DEG C of degree）, then clean and covered in 80 DEG C of dry are made on described.
Embodiment 2
The present embodiment is etched shaping using stainless steel work-piece and the upper lid is made.
（1）Oil removal treatment, workpiece to be etched is cleaned at 60 DEG C, the surface cleaning such as oil removing；
（2）Coating, the workpiece surface coating photoresists after oil removing, then carry out photoresists exposure by the superstructure pattern Light simultaneously develops；Wherein, total gas pressure is 8kg/cm during coating2, the lattice of speed 6 toast 10min at 75 DEG C；Conditions of exposure is vacuum More than 70cmHg, exposure guide rule 8（Lattice）；Development conditions are development point 50%, developing powder 35（Frequency modulation）, development cylinder fluid temperature 32 ℃；Power 2.5kg/cm is sprayed above and below development section2；Solution level Na2CO3:1.2%；Circulating water wash pressure 2kg/cm2。
（3）Etching, is etched by etching solution to the metal position that the workpiece exposes；Etched using acidic copper chloride Liquid, the etching solution includes 200g/L CuCl2, 150ml/L HCl, 50 DEG C of etch temperature, etch about 50min；Pressure 2.6kg/ cm2；Ammoniacal liquor washes pressure 3.0kg/cm2；
（4）The demoulding, is removed the remaining glued membrane of the workpiece surface by the lysate of concentration 20% after etching（Dissolving temperature 80 DEG C of degree）, then clean and covered in 60 DEG C of dry are made on described.
Embodiment 3
The present embodiment is etched shaping using stainless steel work-piece and the upper lid is made.
（1）Oil removal treatment, workpiece to be etched is cleaned at 55 DEG C, the surface cleaning such as oil removing；
（2）Coating, the workpiece surface coating photoresists after oil removing, then carry out photoresists exposure by the superstructure pattern Light simultaneously develops；Wherein, total gas pressure is 7kg/cm during coating2, the lattice of speed 5 toast 10min at 75 DEG C；Conditions of exposure is vacuum More than 70cmHg, exposure guide rule 7（Lattice）；Development conditions are development point 45%, developing powder 30（Frequency modulation）, development cylinder fluid temperature 30 ℃；Power 2kg/cm is sprayed above and below development section2；Solution level Na2CO3:1.0%；Circulating water wash pressure 1.5kg/cm2。
（3）Etching, is etched by etching solution to the metal position that the workpiece exposes；Etched using acidic copper chloride Liquid, the etching solution includes 220g/L CuCl2, 180ml/L HCl, 55 DEG C of etch temperature, etch about 30min；Pressure 2.0kg/ cm2；Ammoniacal liquor washes pressure 2.5kg/cm2；
（4）Demoulding, is removed the remaining glued membrane of the workpiece surface by the lysate of concentration 18% after etching（Dissolving temperature 70 DEG C of degree）, then clean and covered in 70 DEG C of dry are made on described.
Embodiment 4
The present embodiment is etched shaping using copper alloy workpiece and the upper lid is made.
（1）Workpiece to be etched is cleaned at 52 DEG C, the surface cleaning such as oil removing；
（2）Coating, the workpiece surface coating photoresists after oil removing, then carry out photoresists exposure by the superstructure pattern Light simultaneously develops；Wherein, total gas pressure is 7kg/cm during coating2, the lattice of speed 3 toast 10min at 75 DEG C；Conditions of exposure is vacuum More than 70cmHg, exposure guide rule 6（Lattice）；Development conditions are development point 40%, developing powder 18（Frequency modulation）, development cylinder fluid temperature 28 ℃；Power 1.5kg/cm is sprayed above and below development section2；Solution level Na2CO3:0.8%；Circulating water wash pressure 1kg/cm2。
（3）Etching, is etched by etching solution to the metal position that the workpiece exposes；Using iron chloride etching solution, The etching solution includes 200g/L FeCl3, 50ml/L HCl, 45 DEG C of etch temperature, etching simultaneously use water pump circulation stirring；Erosion Carve about 80min；Pressure 1.6kg/cm2；
（4）The demoulding, is removed the remaining glued membrane of the workpiece surface by the lysate of concentration 15% after etching（Dissolving temperature 60 DEG C of degree）, then clean and covered in 80 DEG C of dry are made on described.
Embodiment 5
The present embodiment is etched shaping using Al alloy parts and the upper lid is made.
（1）Oil removal treatment, workpiece to be etched is cleaned at 55 DEG C, the surface cleaning such as oil removing；
（2）Coating, the workpiece surface coating photoresists after oil removing, then carry out photoresists exposure by the superstructure pattern Light simultaneously develops；Wherein, total gas pressure is 7kg/cm during coating2, the lattice of speed 5 toast 10min at 75 DEG C；Conditions of exposure is vacuum More than 70cmHg, exposure guide rule 7（Lattice）；Development conditions are development point 45%, developing powder 30（Frequency modulation）, development cylinder fluid temperature 30 ℃；Power 2kg/cm is sprayed above and below development section2；Solution level Na2CO3:1.0%；Circulating water wash pressure 1.5kg/cm2；
（3）Etching, is etched by etching solution to the metal position that the workpiece exposes；Etched using alkaline copper chloride Liquid, the etching solution includes 130g/L CuCl2、90g/L NH3, pH value is maintained at 8.5, and 50 DEG C of etch temperature etches about 50min； Pressure 2.0kg/cm2；
（4）Demoulding, is removed the remaining glued membrane of the workpiece surface by the lysate of concentration 18% after etching（Dissolving temperature 70 DEG C of degree）, then clean and covered in 70 DEG C of dry are made on described.
Present invention also offers a kind of spraying coating process using the spray finishing jig,
（1）By on assembling product to be sprayed to the spray finishing jig；Specific visible above-mentioned operation part；
（2）Cleaned with white spirit, keep cleaning, no spot；Sprayed coating（Coating for spraying does not have particular/special requirement, Existing coating can be used）Stirred before use（300 ~ 500 mesh are filtered）It is standby；
（3）UV basecoat paints：Treat sprayed product and carry out UV basecoat paints, 60 ~ 75 °C of lower heat cure 1h；The thickness of priming paint Degree preferably but is not limited to 8 ~ 12 μm；
（4）UV finish paints are sprayed：After spray painting UV primer and solidification, UV finish paint sprayings are carried out, 3 ~ 5min is kept, is then flowed Flat curing process：First 50 ~ 60 °C of high temperature 3 ~ 5min of levelling, then 25 °C of low temperature levelling 1min；Enter ultraviolet with 5m speed per minute Light source region, using 800 ~ 900mj/Cm of exposure energy2Ultraviolet light solidified, the thickness of the UV finish paints preferably but is not limited to 10~40μm。
When implementing, execution conditions are 45 ° ± 5 ° of angle of gun, 55 ~ 75%RH of humidity during spraying；Spray gun distance 15 ~ 20cm；1.2 ~ 1.6mm of spray gun bore.After UV basecoat paints, UV finish paints need to be sprayed in 24h, in order to avoid there is finish paint depainting phenomenon. 12h pasting protective films again are placed after UV topcoating cures.
The spraying method is further illustrated below in conjunction with specific embodiment.
Embodiment 6
By assembling product to be sprayed and fixed on the spray finishing jig.
Cleaned with white spirit, keep cleaning, no spot；Sprayed coating is using preceding stirring（300 ~ 500 mesh are filtered）It is standby With；
UV basecoat paints：Treat sprayed product and carry out UV basecoat paints, 60 °C of lower heat cure 1h；The thickness of priming paint is preferred But it is not limited to 8 μm；
UV finish paints are sprayed：After spray painting UV primer and solidification, UV finish paint sprayings are carried out, 3min is kept, levelling is then carried out and consolidates Change is handled：First 50 °C of high temperature levelling 3min, then 25 °C of low temperature levelling 1min；Ultraviolet light source region is entered with 5m speed per minute, adopted Use exposure energy 800mj/Cm2Ultraviolet light solidified, the thickness of the UV finish paints preferably but is not limited to 10 μm；
Execution conditions are 45 ° ± 5 ° of angle of gun, humidity 65%RH during spraying；Spray gun is apart from 15cm；Spray gun bore 1.2mm.
Embodiment 7
By assembling product to be sprayed and fixed on the spray finishing jig.
Cleaned with white spirit, keep cleaning, no spot；Sprayed coating is using preceding stirring（300 ~ 500 mesh are filtered）It is standby With；
UV basecoat paints：Treat sprayed product and carry out UV basecoat paints, 65 °C of lower heat cure 1h；The thickness of priming paint is preferred But it is not limited to 10 μm；
UV finish paints are sprayed：After spray painting UV primer and solidification, UV finish paint sprayings are carried out, 3 ~ 5min is kept, then carries out levelling Curing process：First 55 °C of high temperature levelling 4min, then 25 °C of low temperature levelling 1min；Ultraviolet light source region is entered with 5m speed per minute, Using exposure energy 850mj/Cm2Ultraviolet light solidified, the thickness of the UV finish paints preferably but is not limited to 30 μm；
Execution conditions are 45 ° ± 5 ° of angle of gun, humidity 55%RH during spraying；Spray gun is apart from 18cm；Spray gun bore 1.5mm.
Embodiment 8
By assembling product to be sprayed and fixed on the spray finishing jig；
Cleaned with white spirit, keep cleaning, no spot；Sprayed coating is using preceding stirring（300 ~ 500 mesh are filtered）It is standby With；
UV basecoat paints：Treat sprayed product and carry out UV basecoat paints, 75 °C of lower heat cure 1h；The thickness of priming paint is preferred But it is not limited to 12 μm；
UV finish paints are sprayed：After spray painting UV primer and solidification, UV finish paint sprayings are carried out, 5min is kept, levelling is then carried out and consolidates Change is handled：First 55 °C of high temperature levelling 5min, then 25 °C of low temperature levelling 1min；Ultraviolet light source region is entered with 5m speed per minute, adopted Use exposure energy 900mj/Cm2Ultraviolet light solidified, the thickness of the UV finish paints preferably but is not limited to 40 μm；
Execution conditions are 45 ° ± 5 ° of angle of gun, humidity 75%RH during spraying；Spray gun is apart from 20cm；Spray gun bore 1.6mm.
Clamping of the spraying coating process of existing use plastic cement spray finishing jig before spraying needs first to be punched, then a group It is attached on tool, consumes manpower and materials, efficiency is too low, and plastic cement spray finishing jig production process is complicated（Design mould structure, editor Cutter track, CNC, lathe, electric discharge, line cut, electroplate or polished, assemble, detecting, die trial, injection etc., typically will be at 60 ~ 70 hours Complete, and mould relative cost is higher）, cost hold high height, low production efficiency, product side easily excessively cover cause drain spray or Long-pending oil, space-consuming are unfavorable for storage, easily scrap, can not reuse；And use the spraying coating process of spray finishing jig of the present invention Without first be punched during clamping product to be sprayed, whole beer is assembled on spray finishing jig, and it is laborsaving to save people, efficiency high, and the present invention Spray finishing jig design is easy, make simple and with low cost, and production efficiency is high（It is made by etch-forming, it is only necessary to 3.5 ~ 4.5 Hour）, storage conveniently, is hardly damaged, can infinitely reused, then complicated product is caused Lou all without there is excessively covering Spray or the bad phenomenon such as long-pending oil, overcome the numerous and complicated of plastic cement tool and manufacture and design, and are large manufacturing when striving for more Between, meet customer need to the utmost.
Embodiment described above only expresses embodiments of the present invention, and it describes more specific and detailed, but can not Therefore the limitation to the scope of the claims of the present invention is interpreted as, as long as the skill obtained using the form of equivalent substitution or equivalent transformation Art scheme, all should fall within the scope and spirit of the invention.

Claims (7)

1. a kind of spray finishing jig, it is characterised in that including upper lid and lower cover, the lower cover is provided with multiple first locating dowels, institute State and be covered with multiple the first positioning holes corresponding with first locating dowel, the upper lid is additionally provided with multiple for exposing to be painted The spraying groove and multiple emptiness avoiding holes of product are applied, the tool also includes the nut that locking mechanism is constituted with first locating dowel； The lower cover bottom is provided with screens；Multiple the 3rd positioning holes for being used to position product to be sprayed are covered with described；On described Cover as metal material, be made, comprised the following steps that using etch-forming：（1）Oil removal treatment, it is clear for workpiece to be etched to be carried out Wash, oil removing surface cleaning；（2）Coating, the workpiece surface coating photoresists after oil removing, then enter by described superstructure pattern Row photoresists expose and developed；Wherein, total gas pressure is 6 ~ 8kg/cm during coating2, the lattice of speed 3 ~ 6 toast 10min at 75 DEG C；Expose Optical condition is that vacuum is more than 70cmHg, the lattice of exposure guide rule 6 ~ 8；Development conditions are development point 40 ~ 50%, and developing powder 18 ~ 35 is adjusted Frequently, 28 ~ 32 DEG C of development cylinder fluid temperature；1.5 ~ 2.5kg/cm of power is sprayed above and below development section2；Solution level Na2CO3:0.8~ 1.2%；1 ~ 2kg/cm of circulating water wash pressure2；（3）Etching, is lost by etching solution to the metal position that the workpiece exposes Carve；（4）Demoulding, removes the remaining glued membrane of the workpiece surface after etching, then is cleaned and dried obtained upper lid.
2. the spray finishing jig according to claim 1, it is characterised in that the metal is stainless steel, titanium alloy, low-carbon Any of steel, high-carbon steel, copper and its alloy, aluminium and its alloy.
3. the spray finishing jig according to claim 1, it is characterised in that the nut is flexible glue nut.
4. the spray finishing jig according to claim 1, it is characterised in that first locating dowel is that staged first is positioned Post.
5. the spray finishing jig according to claim 1, it is characterised in that the cross section of the spraying groove or emptiness avoiding hole is length Square, square, circular or irregular shape.
6. the spray finishing jig according to claim 1, it is characterised in that the product to be sprayed is mobile phone side key.
7. a kind of spraying coating process of the spray finishing jig described in usage right requirement 1, it is characterised in that（1）By product to be sprayed It is assembled on the spray finishing jig described in claim 1；（2）Cleaned with white spirit, keep cleaning, no spot；（3）To be sprayed Product carries out heat cure 1h at UV basecoat paints, 60 ~ 75 DEG C；（4）Carry out after UV finish paint sprayings, it is first 50 ~ 60 DEG C high Warm 3 ~ 5min of levelling, then 25 DEG C of low temperature levelling 1min；800 ~ 900mj/Cm of exposure energy is used again2Ultraviolet light carry out Solidification, the thickness of the UV finish paints is 10 ~ 40 μm；Wherein, execution conditions are 45 ° ± 5 ° of angle of gun, humidity during spraying 55~75%RH ；15 ~ 20cm of spray gun distance；1.2 ~ 1.6mm of spray gun bore.
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CN106583124B (en) * 2016-11-23 2019-04-05 东莞长盈精密技术有限公司 Spray finishing jig
CN110420777B (en) * 2019-08-12 2024-08-02 苏州富强科技有限公司 Workpiece inkjet fixing jig
CN110841880A (en) * 2019-11-27 2020-02-28 宁波协华汽车配件制造有限公司 Automobile part spraying process

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CN202823807U (en) * 2012-08-31 2013-03-27 惠州比亚迪电子有限公司 Spraying fixture
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