CN104371413B - A kind of for metal shell signal paint minimizing technology - Google Patents

A kind of for metal shell signal paint minimizing technology Download PDF

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Publication number
CN104371413B
CN104371413B CN201310354040.1A CN201310354040A CN104371413B CN 104371413 B CN104371413 B CN 104371413B CN 201310354040 A CN201310354040 A CN 201310354040A CN 104371413 B CN104371413 B CN 104371413B
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China
Prior art keywords
metal shell
film layer
signal paint
sclerosing agent
minimizing technology
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CN201310354040.1A
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Chinese (zh)
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CN104371413A (en
Inventor
方彬彬
孙元鹏
方先华
万帮卫
刘远征
林政�
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Shenzhen Zhenhua Microelectronics Co Ltd
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Shenzhen Zhenhua Microelectronics Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D9/00Chemical paint or ink removers
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/032Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
    • C23G5/036Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds having also nitrogen

Abstract

The present invention is applicable to chemical field, it is provided that a kind of minimizing technology for metal shell signal paint.The method comprises the following steps: carrying out cured after smearing sclerosing agent on signal paint and obtain identification lacquer solidifying film layer, wherein, described solidification processing method is: dried 60 ± 5 minutes under conditions of 90 ± 5 DEG C;Identification lacquer solidifying film layer is peeled off.The signal paint removing metal shell by the method does not damage metal shell, and identification lacquer is removed clean, and method is simple.

Description

A kind of for metal shell signal paint minimizing technology
Technical field
The invention belongs to chemical field, particularly relate to a kind of minimizing technology for metal shell signal paint.
Background technology
The product use polymeric ink of some highly reliable hermetically sealed packed by metal casings is as signal paint at present, use Ink need to be tested by solvent resistant (method 2015.1 in GJB548B-2005), and therefore adhesive force is strong.When mark need to be changed, nothing Method uses chemical solvent to remove mark.Conventional minimizing technology be use blade to scrape, the physical method such as polishing, but use physics Method inevitably damages the overlay coating of metal shell, causes product reliability to decline and outward appearance is defective.The most right For the metal shell of surface gold-plating more difficult, due to gold hardness little, use Typical physical method remove mark time easily Destroy Gold plated Layer and expose underlying metal, cause that outward appearance is defective scraps.
Summary of the invention
The above-mentioned deficiency aiming to overcome that prior art of the embodiment of the present invention, it is provided that a kind of for metal shell mark The minimizing technology of paint, it is intended to solve how on the premise of not damaging metal shell, simply and effectively removes asking of identification lacquer Topic.
The embodiment of the present invention is achieved in that a kind of minimizing technology for metal shell signal paint, including following step Rapid:
Carry out cured after signal paint is smeared sclerosing agent and obtain identification lacquer solidifying film layer, wherein, at described solidification Reason method is: dried 60 ± 5 minutes under conditions of 90 ± 5 DEG C;
Identification lacquer solidifying film layer is peeled off.
The minimizing technology for metal shell signal paint that the present invention provides, method is simple, uses sclerosing agent gentleer Under conditions of remove the identification lacquer of metal shell, do not damage metal surface and can the most effectively remove identification lacquer, can be used for complete The removal of packed by metal casing product identification paint.
Accompanying drawing explanation
Fig. 1 is gluing and the solidification schematic diagram of embodiment of the present invention offer;
Fig. 2 is the schematic diagram that removes photoresist that the embodiment of the present invention provides.
Detailed description of the invention
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, below in conjunction with Drawings and Examples, are further elaborated to the present invention.Should be appreciated that specific embodiment described herein is only used To explain the present invention, it is not intended to limit the present invention.
Embodiments provide a kind of minimizing technology for metal shell signal paint, comprise the following steps:
S01 carries out cured and obtains identification lacquer solidifying film layer, wherein, described solidification after smearing sclerosing agent on signal paint Processing method is: dried 60 ± 5 minutes under conditions of 90 ± 5 DEG C;
Identification lacquer solidifying film layer is peeled off by S02.
Specifically, in above-mentioned steps S01, in order to effectively remove the identification lacquer of metal shell, again will not be to metal outside Shell damages, and the present invention selects sclerosing agent as coating removal colloid.As the presently preferred embodiments, described sclerosing agent includes following weight The component of percentage ratio:
Polyurethane 30%-60%;
Propylene glycol methyl ether acetate 10%-30%;
Dimethylbenzene 10%-30%;
Ethylbenzene 5%-10%;
Toluene di-isocyanate(TDI) 1%-5%.
Above-mentioned sclerosing agent has the strongest adhesion to signal paint but the highest to the adhesive force of metal, therefore selects sclerosing agent As coating removal colloid when carrying out S02 step process, can effectively remove identification lacquer, metal shell surface will not be damaged again.Make For particular preferred embodiment, the happy safe board HYSOLPC18M type that described sclerosing agent selects Henkel KGaA limited company to produce is hard Agent.
In above-mentioned steps S01, when the identification lacquer of metal surface is smeared sclerosing agent (shown in accompanying drawing 1), smearing thickness Moderate: when the sclerosing agent smeared is the thickest, may cause introducing a large amount of bubble, cause identification lacquer not fill with contacting of sclerosing agent Point, sclerosing agent is inadequate to the adhesion of signal paint, thus causes the identification lacquer of metal surface to remove the cleanest;When the hardening smeared When agent thickness is the thinnest, owing to sclerosing agent is inadequate with the adhesion of metal surface identification lacquer, it is impossible to carry out the solidification of following S02 step The stripping of film layer.Repeatedly study discovery through inventor, when the smearing thickness of sclerosing agent is 0.4-0.8mm, can efficiently solve The problems referred to above, reach well to remove the purpose of metal shell identification lacquer.
In this step S01, in order to be effectively increased the adhesive force between sclerosing agent and metal shell identification lacquer, under facilitating simultaneously State the stripping of solidifying film layer in S02 step, need the sclerosing agent to smearing on metal shell identification lacquer sample to carry out cured. During cured, in order to form the solidifying film layer being easily peeled, improve efficiency the most as far as possible, cured method particularly includes: Dried 60 ± 5 minutes under conditions of 90 ± 5 DEG C, described solidification temperature can not be the highest, the highest volatilization easily causing sclerosing agent, Reduce the effective dose of sclerosing agent.Wherein, the mode of described dried is unrestricted, drying mode conventional in this area For the embodiment of the present invention.As the presently preferred embodiments, above-mentioned dried selects baking simple to operation to be dried.
In above-mentioned steps S02, can directly identification lacquer solidifying film layer be peeled off.The mode peeled off can be any, logical Crossing physical means can be stripped down from metal shell by identification lacquer solidifying film layer, wherein said physical method is for applying machinery Power, such as methods such as lifting, draw, cutter is cut.In order to avoid human body contacts with the direct of organic reagent sclerosing agent, can be by certain Foreign object is peeled off.After stripped, it is attached to the identification lacquer (as shown in Figure 2 b) of sclerosing agent solidifying film layer with metal shell (such as figure Shown in 2a) realize being kept completely separate, as shown in Figure 2.
In this step S02, it also can be entered by metal shell according to actual needs that peel off identification lacquer with organic reagent The cleaning of one step processes.As the presently preferred embodiments, described organic reagent be acetone, ethanol, wash in plate water at least one, wherein The described plate water preferably cleaning effect XD-709B good, that consumption is few that washes washes Ban Shui.As specific embodiment, select and identification lacquer The preferable acetone of COMPONENTS COMPATIBILITY is cleaned processing as organic solvent.Method particularly includes: dip wiping after acetone with cotton balls Metal shell, wipes pollutant.
Remove the metal shell after identification lacquer to print other marks or carry out other operations.
The minimizing technology for metal shell signal paint that the embodiment of the present invention provides, solves signal paint on metal shell The problem removing difficulty.By a kind of sclerosing agent of coating, forming a tunic shape material after solidification, signal paint is had the strongest by formation Adhesion but the solidifying film layer the highest to the adhesive force of metal, can carry mark after therefore being thrown off by this layer of solidifying film layer together Walk without case surface being caused any damage.The method by the cured technological parameter of test of many times, have stronger can Operability, can be removed work in batches.
Further illustrate below in conjunction with specific embodiment.
Embodiment one one kinds is for the identification lacquer minimizing technology of metal shell
After signal paint is smeared the sclerosing agent of 0.4mm thickness, obtain identification lacquer after toasting 60min under the conditions of 90 DEG C solid Change film layer;Obtain sclerosing agent solidifying film layer identification lacquer and the metal shell separated after being peeled off by identification lacquer solidifying film layer, use Cotton balls wiping metal shell containing ethanol, removes pollutant.
Wherein, described sclerosing agent comprises the component of following mass percent:
Polyurethane 45%;
Propylene glycol methyl ether acetate 20%;
Dimethylbenzene 20%;
Ethylbenzene 10%;
Toluene di-isocyanate(TDI) 5%.
Embodiment 21 kinds is for the identification lacquer minimizing technology of metal shell
After signal paint is smeared the sclerosing agent of 0.6mm thickness, obtain identification lacquer after toasting 63min under the conditions of 95 DEG C solid Change film layer;After being peeled off by identification lacquer solidifying film layer, with washing the cotton balls wiping metal shell of plate water containing XD-709B, remove dirt Dye thing.
Wherein, described sclerosing agent comprises the component of following mass percent:
Polyurethane 40%;
Propylene glycol methyl ether acetate 25%;
Dimethylbenzene 20%;
Ethylbenzene 10%;
Toluene di-isocyanate(TDI) 5%.
Embodiment 31 kinds is for the identification lacquer minimizing technology of metal shell
After signal paint is smeared the sclerosing agent of 0.75mm thickness, after toasting 55min under the conditions of 85 DEG C, obtain identification lacquer Solidifying film layer;After identification lacquer solidifying film layer is peeled off, with washing the cotton balls wiping metal shell of plate water containing acetone, ethanol, remove Depollute thing.
Wherein, described sclerosing agent comprises the component of following mass percent:
Polyurethane 45%;
Propylene glycol methyl ether acetate 25%;
Dimethylbenzene 15%;
Ethylbenzene 10%;
Toluene di-isocyanate(TDI) 5%.
Embodiment 41 kinds is for the identification lacquer minimizing technology of metal shell
Signal paint is smeared the happy safe board HYSOL that the Henkel KGaA limited company of 0.40-0.80mm thickness produces After PC18M type sclerosing agent, after toasting 55-65min under the conditions of 85-95 DEG C, obtain identification lacquer solidifying film layer;Identification lacquer is solidified After film layer is peeled off, with the cotton balls wiping metal shell containing acetone, remove pollutant.
Performance test
The encapsulation performance test that shell after above-described embodiment 1-4 is removed mark specifies in GJB2438A-2002, Correlated performance method of testing is as follows:
(1) thermal shock experiment: carry out by the condition C in method in GJB548B-2005 1011.1: T1=5min, t2≤10s, 15 circulations.Require: shell should defective and damage sign;
(2) stability baking test: by GJB548B method 1008.1, the sample after coating removal is bakeed 1h at 150 DEG C.Want Ask: outward appearance should not have damage;
(3) sealing experiment
Examining leakage experiment: carry out by method in GJB548B-2005 1014.2 condition A1: pressure: 310kPa, time: 5h. Require: R1≤5 × 10-3 (Pa cm3)/s(He);
Rough Inspection leakage experiment: by GJB548B method 1014.2 condition C 1: pressure: 310kPa, time: 8h.Require: Ying Wulian Continuous bubble is emerged
(4) anti-moisture test: carry out by method in GJB548B-2005 1004.1, it is desirable to: the shell area that is corroded does not surpasses Cross 5%;
(5) salt mist experiment: carry out by condition A in method in GJB548B-2005 1009.2, it is desirable to: shell is corroded face Long-pending less than 5%.
Each test result is shown in Table 1:
Table 1
As seen from the above table, method as described in embodiment of the present invention 1-4 is taken out the identification lacquer of metal shell surface, remove mark After shell after will carries out above-mentioned test, thermal shock resistance properties is preferable, and high-temperature stability is strong, and moisture-proof and salt spray resistance are good, Sealing is strong.And all samples after testing is the most qualified, it was demonstrated that the method on the performance of shell without impact.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.

Claims (4)

1., for a minimizing technology for metal shell signal paint, comprise the following steps:
Carry out cured after signal paint is smeared sclerosing agent and obtain identification lacquer solidifying film layer, wherein, described cured side Method is: dried 60 ± 5 minutes under conditions of 90 ± 5 DEG C;
Identification lacquer solidifying film layer is peeled off,
Wherein, described sclerosing agent includes the component of following percentage by weight:
2. the minimizing technology of signal paint as claimed in claim 1, it is characterised in that: the coating thickness of described sclerosing agent is 0.4- 0.8mm。
3. the minimizing technology of signal paint as claimed in claim 1 or 2, it is characterised in that: also include identification lacquer solidifying film layer After peeling off, with organic reagent, described metal shell is cleaned the step processed.
4. the minimizing technology of signal paint as claimed in claim 3, it is characterised in that: described organic reagent is acetone, ethanol, washes At least one in plate water.
CN201310354040.1A 2013-08-14 2013-08-14 A kind of for metal shell signal paint minimizing technology Active CN104371413B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN104371413A CN104371413A (en) 2015-02-25
CN104371413B true CN104371413B (en) 2016-08-17

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1216313A (en) * 1997-10-31 1999-05-12 休邦得建设股份有限公司 Removing method for coating and drawing at random

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1216313A (en) * 1997-10-31 1999-05-12 休邦得建设股份有限公司 Removing method for coating and drawing at random

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