CN102015123A - Frocess for organic coating - Google Patents

Frocess for organic coating Download PDF

Info

Publication number
CN102015123A
CN102015123A CN2008801282474A CN200880128247A CN102015123A CN 102015123 A CN102015123 A CN 102015123A CN 2008801282474 A CN2008801282474 A CN 2008801282474A CN 200880128247 A CN200880128247 A CN 200880128247A CN 102015123 A CN102015123 A CN 102015123A
Authority
CN
China
Prior art keywords
pallet
coating
parts
array
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2008801282474A
Other languages
Chinese (zh)
Inventor
司徒英乐
陈伟明·伯纳德
纪德成
潘佳席
胡世杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PNE MICRON HOLDINGS Ltd
Original Assignee
PNE MICRON HOLDINGS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PNE MICRON HOLDINGS Ltd filed Critical PNE MICRON HOLDINGS Ltd
Publication of CN102015123A publication Critical patent/CN102015123A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B05B5/082—Plant for applying liquids or other fluent materials to objects characterised by means for supporting, holding or conveying the objects
    • B05B5/084—Plant for applying liquids or other fluent materials to objects characterised by means for supporting, holding or conveying the objects the objects lying on, or being supported above conveying means, e.g. conveyor belts
    • 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
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • 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
    • B05D2258/00—Small objects (e.g. screws)

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

A process of organic coating of components (10) such as casings of hard discdrives. The process includes the steps of supporting the casing on a first tray (20) and supporting a number of the first trays with the casing supported thereon in an array on a second tray (30). The component, the first tray and the second tray are electrically conductive so that electrically grounding the second tray electrically grounds the component. The array is then electrostatically coated (40) with a water based organic coating material and then transported to a flash off oven (50) and then transported to a curing oven (60).

Description

The organic coating method
Invention field
The present invention relates to organic coating, relate in particular to the organic coating that is used for electron device part.
Background technology
The present invention will be particularly related to the parts organic coating of hard drive housing parts particularly that is used for electronic building brick, but the present invention is not limited thereto, also can be applied in the assembly of other type.
The hard drive housing is made up of die casting or punching press aluminium, and to guarantee dimensional stability and intensity and lightness, still in use, the particle detachment problem may appear in this base part.This type of particle that comes off (particularly hard particles) may cause problems such as head crash and error in data in the good hard drive of tolerance limit.Therefore, the inside of housing, especially housing must apply.The current coating of using is nickel plating, but this coating is very expensive.
Tolerance limit in the hard drive is very closely, therefore needs to apply thin and coating uniform coating, particularly enclosure interior.Simultaneously, also should avoid the coating arcing to forward on other surface of housing parts.
The objective of the invention is for a kind of method of application member is provided, this method can overcome these problems, perhaps selects for the practitioner provides a kind of useful method in this field at least.
Summary of the invention
In one form, the present invention is a kind of organic coating method of parts, and only some needs to apply described parts, and other parts do not need to apply, and described method may further comprise the steps:
At parts of the first pallet upper support, this pallet comprises the parts shape partly that a mark need not apply, and to stop these parts is carried out the circulating type coating processing;
After becoming array by planar alignment, a plurality of first pallets that are supported with housing are supported on second pallet;
Coating material is coated onto on the array on second pallet;
The array of coating on second pallet is transported to one flashes off in the baking box, and keep one selected period;
The array of coating on second pallet is transported in the curing oven, and keeps one selected period.
Preferably, the coating of coating material is preferably finished by electrostatic means, and simultaneously, parts, first pallet and second pallet conduct, and can make parts also carry out electrical grounding for the electrical grounding of second pallet.
Preferably, coating material preferably includes the water base organic-containing materials that comprises butyl cellosolve.
One preferred embodiment in, first pallet places on second pallet, therefore, does not in fact have the space between two first adjacent pallets.
Preferably, first pallet and/or second pallet preferably have a low relatively thermal mass, significantly not increase total heat-sinking capability of parts, first pallet and second pallet.
Parts can comprise a hard drive housing, and coating can only be used for the inside of covering shell, but the invention is not restricted to the only coating of a side.Parts also can be the other parts of a hard drive, such as External memory equipment parts and like.
In a kind of alternative form, the present invention includes a kind of organic coating method of hard drive housing, the housing of hard drive only needs enclosure interior to apply, and do not need hull outside to apply, described method comprises following steps: at the first pallet upper support hard drive housing, described first pallet comprises the shape of the hull outside that a mark need not apply, and to stop hull outside is carried out the circulating type coating processing;
After forming array by planar alignment, a plurality of first pallets that are supported with housing are supported on second pallet; Parts, first pallet and second pallet conduct, and therefore the electrical grounding for second pallet can make parts also carry out electrical grounding; By electrostatic means with coating material be coated to be supported with housing and be supported on the array of first pallet on second pallet; The array of coating on second pallet is transported to one flashes off in the baking box, and keep one selected period, thereby make coating flow to homogeneous thickness, make the coating material carrier for evaporating simultaneously; The array of coating on second pallet is transported in the curing oven, and keeps in one selected period, thereby make the curing of coating material.
This is to GENERAL DESCRIPTION OF INVENTION, but in order to help to understand the present invention, has in the accompanying drawing of enclosing with reference to explanation, and these accompanying drawings have shown preferred embodiment of the present invention.
Description of drawings
Fig. 1 has shown a typical component that applies by the inventive method;
Fig. 2 has shown the specific embodiment of the present invention's first pallet, is fit to hold the typical component that is presented among Fig. 1;
Fig. 3 has shown the assembly behind the pallet of the typical component load map 2 of Fig. 1;
Fig. 4 has shown an array of Fig. 3 assembly, and this array is to be supported by the specific embodiment of second pallet according to the present invention;
Fig. 5 has shown according to the present invention the specific embodiment of second pallet; And
Fig. 6 has shown the specific embodiment according to a kind of coating process of the present invention.
Preferred implementation
Fig. 1 has shown a typical component that applies by the inventive method.In this case, these parts are half hard drive housings, but mention as above-mentioned, the invention is not restricted to this application.
Housing 10 has a peripheral clamping area 12 meshing a like (not shown), thereby forms the complete housing of a hard drive.Housing is made of die casting or punching press aluminium, as above-mentioned mention, may produce potential particle detachment phenomenon on the inner surface 14, therefore require inner surface is applied.Inner surface can have tight tolerance, therefore thin and uniformly coating be desirable.Electrostatic coating is a kind of useful technology, but coating may be piled up at the edge of peripheral clamping area 12.According to the present invention, for fear of the generation of this situation, housing 10 is by first tray support.Housing also can pass through other method construct, such as compacting or by other for example the material of zinc or steel constitute.
Fig. 2 shows a specific embodiment of first pallet of the present invention, and this mode is fit to hold the typical component that is presented among Fig. 1.First pallet 20 has a periphery 22, and this peripheral interior shape is identical with the surface periphery 12 of housing 10 (see figure 1)s, and therefore, the cooperation between the two is tight.The inner surface 24 of first pallet 20 has been cut off, thereby reduces the thermal mass of first pallet.It is minimum that the tight fit of first pallet and housing parts 10 has guaranteed to be wrapped in housing organic-containing materials on every side.
Be appreciated that the design of first pallet 20 and shape that shape depends on parts 10 and for the required mark of special parts.
Fig. 3 has shown the assembly 28 behind first pallet 20 of Fig. 1 housing 10 load maps 2.Can see a tight fit is arranged between pallet and the housing.
Fig. 4 has shown that the array of being made up of 16 Fig. 3 assemblies 28 26 is supported on second pallet 30.Abut against between the assembly together, to avoid loss each other.
Fig. 5 shows second pallet 30 in greater detail.It is peripheral 32 that second pallet 30 comprises, abut against together in order to keep the housing and first pallet component 28, peripheral 32 be resized to this type of array that can admit a selected number, very close to each other between the assembly.Yet, again, have minimum thermal mass with avoid flash off with solid state in to need extra heat be that we wish, as discussing below, so the supporting surface of pallet is made up of many wires 34.
Because first-selected static organic coating method, first pallet and second pallet and housing itself are preferably by forming such as the conductive material of steel or aluminium.
Fig. 6 has shown according to the present invention the specific embodiment in a kind of various stages of coating process.
In the several stages of beginning, housing 10 places on first pallet 20 (as shown in Fig. 3), and the assembly of a plurality of set of shells 10 and first pallet 20 is supported by second pallet 30 (as shown in Fig. 4).Subsequently, second pallet 30 is carried to the coating stage 40, and in this stage, the housing inboard is coated with the very thin organic coating of one deck.Rotary atomizer coating equipment 42 provides a dome pattern 44.
After the coating stage, second pallet is moved to the stage of flashing off 50, and in this stage, coating can flow so that a uniform coating to be provided, and makes water carrier flash distillation before curing simultaneously.
After flashing off, pallet is moved to a curing oven stage 60, and in this stage, organic-containing materials is by the crosslinked organic coating of finishing with formation that is cured.
In a preferred embodiment, coating material is a kind of water base organic material, and for example Wei Shibai lacquer (production of Minn. Minneapolis city The Valspar Corporation) uses promise letter rotary atomizer (Nordson Corp, Ohio, USA) simultaneously.Rotary atomizer is used for applying equably water base organic coating, and coating layer thickness is 8+/-2 micron.Organic-containing materials preferably has butyl cellosolve, and concentration is up to 2%, with the viscosity that increases lacquer (chemical bond of alcohol radical) (being increased to 25secs from 20secs on 2 glasss in Cai's grace cup), and increases wetability in the nozzle (or prevent lacquer from killing).In tropical climate, this measure is very important.
Finish the control of 8+/-2 micron by adding butyl cellosolve (make coating method consistent more continuously), and use automatic fluid to carry control to feed back to current transformer (to the flowmeter of CPU) to be used for accurate conveying before atomizer, to control fluid conditioner via light.Whole system ground connection, and coat with lacquer electrostatic charging (, being used for unified film forming) to a tight sets of conditions.If because any reason, little current indication of charging is too high, and THICKNESS CONTROL will be exported.The rotating speed of turbine is the same important with air vector (air of decision rotary atomizer dome model shape).
Can see in this invention, provide a kind of organic coating method, this method uses a pallet preventing in the processing of the circulating type at the edge-of-part and the back side in tray design, but does not significantly increase total heat-sinking capability of whole system.Trayconcept comprises two parts, i.e. the frame or second pallet and miniature pallet or first pallet.In the preferred specific embodiment, frame is held 16 miniature pallets, and these pallets are correspondingly placed the hard drive housing.Carrier tray must be cleaned easily, and easily stacks stacking.The design of carrier system and conveyer guarantees whole system ground connection, and eliminates the circulating type effect with minimum obstacle.
In this manual, provide the some promptings that relate to the scope of the invention, wherein any but the present invention is not limited to, but can be two or more combination.The specific embodiment of these explanations only is used for for example, and unrestricted.

Claims (8)

1. only some needs to apply for the method for the organic coating of parts, these parts, and other parts do not need to apply, and this method may further comprise the steps:
At parts of the first pallet upper support, described first pallet comprises the parts shape partly that a mark need not apply, and to stop these parts is carried out the circulating type coating processing;
After becoming array by planar alignment, a plurality of first pallets that are supported with housing are supported on second pallet;
Coating material is coated onto on the array on second pallet;
The array of coating on second pallet is transported to one flashes off in the baking box, and keep one selected period;
The array of coating on second pallet is transported in the curing oven, and keeps one selected period.
2. the method for claim 1, wherein the coating of coating material is an electrostatic coating, and parts, first pallet and second pallet are that conduction is logical, and therefore the electrical grounding for second pallet can make parts also carry out electrical grounding.
3. the method for claim 1, coating material wherein comprises the water base organic-containing materials that comprises butyl cellosolve.
4. the method for claim 1, first pallet wherein places on second pallet, does not therefore in fact have the space between two first adjacent pallets.
5. the method described in claim 1, wherein first pallet and/or second pallet possess lower thermal mass, thereby can significantly not increase parts, total heat-sinking capability of first pallet and second pallet.
6. as the technology in the claim 1, parts wherein comprise a hard drive housing or other electronic unit, and coating only is used for a selected side of covering shell or electronic unit.
7. the organic coat method of a hard drive housing, the housing of described hard drive only need enclosure interior to apply, and do not need hull outside to apply, and described method comprises following steps:
At the first pallet upper support hard drive housing, described first pallet comprises the shape of the hull outside that a mark need not apply, and to stop hull outside is carried out the circulating type coating processing;
After becoming array by planar alignment, a plurality of first pallets that are supported with housing are supported on second pallet; Parts, first pallet and second pallet conduction are logical, and therefore the electrical grounding for second pallet can make parts also carry out electrical grounding; By electrostatic means with coating material be coated to be supported with housing and be supported on the array of first pallet on second pallet; The array of coating on second pallet is transported to one flashes off in the baking box, and keep one selected period, thereby make coating flow to homogeneous thickness, make the coating material carrier for evaporating simultaneously; The array of coating on second pallet is transported in the curing oven, and keeps one selected period, thereby coating material is solidified.
8. as requiring 1 described method, coating material wherein comprises the water base organic-containing materials that comprises butyl cellosolve.
CN2008801282474A 2008-01-18 2008-01-18 Frocess for organic coating Pending CN102015123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG2008/000021 WO2009091337A1 (en) 2008-01-18 2008-01-18 Process for organic coating

Publications (1)

Publication Number Publication Date
CN102015123A true CN102015123A (en) 2011-04-13

Family

ID=40885542

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008801282474A Pending CN102015123A (en) 2008-01-18 2008-01-18 Frocess for organic coating

Country Status (2)

Country Link
CN (1) CN102015123A (en)
WO (1) WO2009091337A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1448225A (en) * 2002-03-27 2003-10-15 田漥工程股份有限公司 Coating method and coating equipment applying the same method
CN1679178A (en) * 2002-09-02 2005-10-05 帝希欧有限公社 White light emitting diode and its method of making
CN101085440A (en) * 2006-06-08 2007-12-12 通用电气公司 Apparatus and method for masking

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756852A (en) * 1971-10-22 1973-09-04 Philco Ford Corp Nvironments conformal coating process to improve package reliability in adverse e
DE3105082C2 (en) * 1981-02-12 1982-12-30 Philips Patentverwaltung Gmbh, 2000 Hamburg Method for spray painting technical objects, in particular electrical devices, and device for carrying out this method
GB2269767B (en) * 1992-07-31 1995-12-20 Adam Computers Ltd A method and apparatus for producing an emi shielded plastic casing for an electronic device
JP2001029872A (en) * 1999-07-22 2001-02-06 Asahi Chem Ind Co Ltd Method for coating casing of electric apparatus having battery box

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1448225A (en) * 2002-03-27 2003-10-15 田漥工程股份有限公司 Coating method and coating equipment applying the same method
CN1679178A (en) * 2002-09-02 2005-10-05 帝希欧有限公社 White light emitting diode and its method of making
CN101085440A (en) * 2006-06-08 2007-12-12 通用电气公司 Apparatus and method for masking

Also Published As

Publication number Publication date
WO2009091337A1 (en) 2009-07-23
WO2009091337A8 (en) 2009-09-11

Similar Documents

Publication Publication Date Title
US20170259505A1 (en) Selective composite manufacturing for components having multiple material properties
US5518060A (en) Method of producing polymeric patterns for use in evaporable foam casting
US20180043618A1 (en) Embedding apparatus and method utilizing additive manufacturing
US8241480B2 (en) Housing for electronic device and method of making the housing
CN104168730A (en) Shell, electronic device employing the shell and manufacturing method of the shell
CN113682494A (en) Additive manufactured satellite
US9263414B2 (en) Flip chip packaging method, and flux head manufacturing method applied to the same
EP3296092A1 (en) Method for placing electrical conductors interior to a composite structure prior to curing
US20210197462A1 (en) Topographic build plate for additive manufacturing system
US11038156B2 (en) Battery parts having solventless acid barriers and associated systems and methods
KR20180036487A (en) Three dimensional printing apparatus and three dimensional printing method thereof
KR20180099627A (en) Method for forming a structured coating layer on a molded part and apparatus for carrying out the method
CN106710786A (en) Small electronic device, printed circuit board and production method of small electronic device
CN102015123A (en) Frocess for organic coating
CN103781273A (en) Embedded metal-base PCB and processing method thereof
WO2001085359A2 (en) Electrostatic powder coating on non-conductive plastics
US8590140B2 (en) Method for manufacturing alloy resistor
US10569464B2 (en) Connecting metal foils/wires at different layers in 3D printed substrates with wire spanning
JPH10134783A (en) Galvani battery and manufacture thereof
KR101432530B1 (en) natural graphite and composite graphite stacked thermal diffusion sheet and manufacturing method thereof
US20160345426A1 (en) Flexible printed circuit board and method of producing flexible printed circuit board
KR101548546B1 (en) thermal diffusion sheet having metal layer and manufacturing method thereof
JP2023173004A (en) Powder sintering lamination molding apparatus
CN220447181U (en) Printing panel for three-dimensional printer and three-dimensional printer
KR101883727B1 (en) EMI shielding particle, EMI shielding composite including the EMI shielding particle, EMI shielding adhesive film including the EMI shielding composite and apparatus including the EMI shielding composite

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110413