CN102215653B - Thin plastic shell with plastic binder and manufacturing method thereof - Google Patents

Thin plastic shell with plastic binder and manufacturing method thereof Download PDF

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Publication number
CN102215653B
CN102215653B CN2010101418134A CN201010141813A CN102215653B CN 102215653 B CN102215653 B CN 102215653B CN 2010101418134 A CN2010101418134 A CN 2010101418134A CN 201010141813 A CN201010141813 A CN 201010141813A CN 102215653 B CN102215653 B CN 102215653B
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China
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shell piece
metal thin
thin shell
metal
polymer
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CN2010101418134A
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Chinese (zh)
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CN102215653A (en
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谢明仁
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铂邑科技股份有限公司
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Abstract

The invention relates to a thin metal shell with a plastic binder and a manufacturing method thereof. The manufacturing method comprises the following steps of: providing a molded thin metal shell one surface of which can be provided with an outer decorative coating layer through processing; arranging a TPR (Thermoplastic Rubber) adhesion layer with the thickness of about 400-500 mum on the unprocessed metal surface of the thin metal shell, wherein the TPR adhesion layer is a thermoplastic rubber film synthesized from a butadiene-styrene block copolymer and hydrocarbon petroleum resin; embedding the thin metal shell with the plastic binder and fixing in a cavity of an injection molding die with a corresponding matching shape; injection-molding the plastic binder on the TPR adhesion layer of the thin metal shell by using a metal injection molding process. Therefore, the plastic binder has the pressure and the temperature of the material injected during injection molding so as to be molten and integrated with the TPR adhesion layer, and meanwhile, the thickness of part of the TPR adhesion layer, for example 10% and about 40-50 mum, is forced to permeate into the existing thin concave holes in the metal surface of the thin metal shell.

Description

Metal thin shell piece and method for making thereof with polymer conjunction
Technical field
Relevant a kind of metal thin shell piece and the method for making thereof with polymer conjunction of the present invention, espespecially a kind of elder generation on the metal surface of a metal thin shell piece, fit a TPR adhesion coating its by the synthetic thermoplastic elastomer film of butadiene-styrene block copolymer and hydrocarbon Petropols, the recycling jetting formation process, these polymer conjunctions of ejection formation on this TPR adhesion coating, while making these polymer conjunctions by ejection formation, the pressure of injection material and temperature are to be combined into this TPR adhesion coating and metal thin shell piece the integrated composite structure body that forms a firm combination.
Background technology
Various products electronic product especially on the market, comprise common computer (computer) product such as notebook computer (Notebook computer, be called for short NB), the 3C Product such as communication (communication) product such as mobile phone or consumer (consumer) product but do not limit, often apply a thin shell piece and use as the shell of product; This thin shell piece has different structures with the designing requirement of product, and if, with the material that the matrix (base) of a thin shell piece is used, can generally be divided into thin plastic shell and metal thin shell piece two primary structure classifications.
Thin plastic shell general using with external decorative cover embeds die type and decorates with processing procedure (in-molddecorating process, be called for short IMD) make, it forms the three dimensions forming shape and prints figuratum carrier (substrate) as the polymer film one, hereinafter to be referred as IMD film (IMD film), be embedded in a molding tool, recycling plastic rubber ejaculate molding technique make the thermoplastic resin ejection formation at the back side of this IMD film the matrix with this housing of moulding, hereinafter to be referred as resin matrix (resin base), this resin matrix is combined with the IMD film and forms an integral type thin plastic shell, wherein, this IMD film (IMD film) can the secure bond mode be located on the outer surface of resin matrix (resin base) and forms a permanent device thing, be provided as an outer decorative cover of this thin plastic shell or a protective surface or the two is all, in addition this IMD film also temporarily fixed form be located on the outer surface of resin matrix (resin base) and form a temporary rig, after completing, this IMD film can be torn off, and make the printed patterns transfer printing on this IMD film or be deposited in an outer decorative cover that is provided as this thin plastic shell on the outer surface of resin matrix.
, there are a lot of prior arts at present in thin plastic shell structural design and manufacture method thereof for above-mentioned, comprises:
US 3,654,062 discloses one has the correlation technique of the molded plaque (a molded decorative plaque) of a laminated type surface patch (a laminated facing sheet), and it has had the thermoplastic cement ejection formation on the back side of pressing surface patch of mold structure and form one.US 6,117, and 384 announcements utilize a film with colorful color, then the thermoplastic resin ejection formation are formed to the processing procedure correlation technique of the stereo object of a permanent combination at the back side of this film.US4,391,954 disclose a correlation technique that comprises the thermoplastic molded complex (thermoplastic molding composition) of the polynary ester (polyester) that aromatic carbonate salt polymer (a romaticcarbonate polymer) obtained by cyclohexanedimethanol (cyclohexanedimethanol) with.US4,125,572 disclose a correlation technique that comprises the thermoplastic molded complex (thermoplastic moldingcomposition) of the polynary ester (polyester) that aromatic carbonate salt polymer (aromatic carbonatepolymer) obtained by an aliphat (aliphatic) or cycloaliphatic glycol (cycloaliphaticdiol) with.US6, 465, 102 disclose one comprises article and a method of moulding thereof of decorating with the polymer matrix (polymeric base) of surf zone and an integral type formation, and this polymer matrix comprises the polynary ester resin of transparent cycloaliphatic (cycloaliphatic polyester resin), wherein the polynary ester resin system of this cycloaliphatic is not subjected to correlation technique (the Anarticle comprising a decorative surface area and an integral formedpolymeric base comprising transparent cycloaliphatic polyester resin that aromatic series part (aromatic moiety) is disturbed, wherein the cycloaliphatic polyester resin is free from an aromatic moietyand the method for molding thereof).US6,117, the 384 embedding die types that disclose an improvement are decorated the correlation technique with processing procedure (in-mold decorating process, IMD).US6,136,441 disclose the correlation technique of multiple field polymer article (multilayer plastic articles).Patent specification content with reference to prior arts such as above-mentioned various structural designs about the polymer housings or manufacture methods, these prior arts as can be known are mostly that polymer film (being the IMD film) and resin matrix (resin base) that a polymer housing comprises are made respectively to further restriction (limitation), if polymer film (IMD film) or resin matrix (resinbase) are defined as to a certain special chemical family plastic material, to make a firm integral type composite plastic lumber in conjunction with being difficult for peeling off, and again can and other patents (prior art) between having any different property.
Yet, when the polymer film (being the IMD film) of the thin plastic shell article that consist of composite wood when and/or resin matrix (resin base) are becomed privileged respectively and are limited, the material not only used is restricted, the application of polymer film (being the IMD film) and/or resin matrix (resin base) is restricted relatively, be unfavorable for the application of made thin plastic shell, for example for variation, need to want to select comprise but do not limit cloth cover, leathering, when the materials such as resin fibre face are used as the polymer film, often can't utilize identical technology or equipment and reach production efficiency high, but mass production and the good effect of quality keyholed back plate, relatively can't promote service efficiency and the range of application of this polymer shell, therefore can be considered the shortcoming of above-mentioned these thin plastic shells.
In addition, more common metal thin shell piece comprises: the thin shell piece shape thing of being made by machining with sheet metal such as aluminium alloy sheet, or further on the outer surface of this metal thin shell piece shape thing, separately do surface processing and process to present gloss or pattern, or a resin bed such as resin film further separately are set again in order to protect outer metallic surface to be scraped with in avoiding using on the outer surface of this metal thin shell piece shape thing, touch equivalent damage, or the figuratum resin bed of one deck tool is set separately on the outer surface of this metal thin shell piece shape thing further, in order to aesthetic appearance or the sense of touch of protecting outer metallic surface and promoting product, or need utilize plastic rubber ejaculate molding technology or the bonding set mode of injection moulding (only referring to by the molding mode of injection mo(u)lding) directly at place, the upper right position of the inner surface (metal covering) of this metal thin shell piece shape thing, to arrange or the various assemblings of bonding set polymer conjunction such as flange shape thing or floor shape thing etc. with the assembling of the intraware of product, in order to simplify structure and the integral thickness of these assemblings with the polymer conjunction, and enhancement structural strength.
Structural design and manufacture method thereof for above-mentioned metal thin shell piece, there have been at present a lot of prior arts, comprise: U.S. patent of invention US5,695,699, US5,472,782 and U.S.'s patent of invention open case US2009/0117401, US2008/0127479, US2007/0218721 etc., hereby with following patent, illustrate respectively:
Chinese invention patent application ZL02805359.1 (International Application PCT/JP2002/007267, international publication WO2003/064150) disclose a kind of aluminium alloy and the complex of resin and the correlation technique of manufacture method thereof, it is characterized in that, comprise: through the aluminium alloy shape thing of contact operation, described contact operation is to make aluminium alloy shape thing and dissolving be selected from ammonia, hydrazine (diamine), the aqueous solution contact of the compound of more than one in methyl amine and ethylenediamine, make above-mentioned adsorption from aqueous solution, remain in its surperficial operation, with by injection mo(u)lding, be attached to integratedly the resin of aforementioned aluminium alloy shape thing, described resin is selected from polyalkylene terephthalates, take the copolymer of aforementioned polyalkylene terephthalates as main body, with more than one in the thermoplastic compounds that contains aforementioned polyalkylene terephthalates composition.
Chinese invention patent application ZL200380102886.0 (International Application PCT/JP2003/014213, international publication WO2004/041532) disclose a kind of aluminium alloy and the complex of resin and the correlation technique of manufacture method thereof, it is characterized in that, by the aluminium alloy shape thing through being selected from the dipping process flooded in more than one the aqueous solution of ammonia, hydrazine (diamine) and water-soluble amine compound be attached to integratedly on the surface of described aluminium alloy shape thing, close the thermoplastic compounds formation of polyphenylene sulfide composition.
Chinese invention patent application ZL200380104500.X (International Application PCT/JP2003/014214, international publication WO2004/041533) disclose a kind of aluminium alloy and the complex of resin and the correlation technique of manufacture method thereof, it is characterized in that, by surface roughness, be that 5 μ m～50 μ m and its surface have fine recess below 1 μ m or the aluminium alloy shape thing of protuberance, with immersing described recess or protuberance, fix, average coefficient of linear expansion is 2～4x10 in length and breadth -5℃-1 take polybutylene terephthalate (PBT) resin or polyphenylene sulfide form as the thermoplastic compounds of main component.
Chinese invention patent application ZL200680046075.7 (International Application PCT/JP2006/324493, international publication WO2007/066742) disclose the correlation technique of a kind of metal-resin composite and manufacture method thereof, it is characterized in that, by aluminium alloy element and thermoplastic synthetic resin composition member, formed, described aluminium alloy element is as lower member: be selected from ammonia through impregnated in, the operation of the aqueous solution of more than one of hydrazine (diamine) and water-soluble amine compound, use electron microscope observation, the recess that its surface is 10～80nm by the equal internal diameter of number covers, described thermoplastic synthetic resin composition member is as lower member: through injection mo(u)lding and as described in being bonded to aluminium alloy element as described on surface, and the main component during resinous principle forms is polyamide, submember is the resistance to impact improved materials.
So, above-mentioned Chinese invention patent ZL02805359.1, ZL200380102886.0, ZL200380104500.X and ZL200680046075.7 disclose the complex of metal and resin and the correlation technique of manufacture method thereof, and its individual features all is, this metal (as aluminium alloy) shape thing is through the dipping process of dipping in the aqueous solution of special selection (as more than one the aqueous solution of water-soluble amine compound), and again with the thermoplastic resin of the special selection component of tool and with injection molding, be attached to integratedly on the surface of this aluminium alloy shape thing and form, in other words, the surface treatment procedure of metal in this complex (aluminium alloy) shape thing and the composition of resin shape thing are all becomed privileged and are limited, and relatively comparatively complicated, processing procedure and the application of complex are restricted, the service efficiency and the range of application that are unfavorable for this metal thin shell piece, especially use the aqueous solution of special selection more not meet current environmental requirement, therefore above-mentioned metal thin shell piece article and method for making thereof have following shortcoming at least: if must in injection forming mold, coordinated each resin-bonded part, design respectively single perfusing hole to carry out this resin-bonded part of high pressure fixed point injection moulding, cause this metal thin shell piece in injection molding process because being subjected to easily deformed damaged of high pressure, and the degree of difficulty of this injection forming mold is made in increase, because dipping process must first be carried out with the special aqueous solution in the metal surface of metal thin shell piece, cause processing procedure comparatively complicated again, be unfavorable for the mass production of this metal thin shell piece, especially this special aqueous solution more has environmental issue.
For another domestic application for a patent for invention number 85100575 (notification numbers 404888) " the high clarity resin-coated metal sheet with excellent processing adhesion ", disclose a kind of correlation technique of resin-coated metal sheet, it be take metallic plate and is substrate, at least on this substrate unilateral, by the substrate-side thick polyester based resin film (seeing its claim 1) of denaturing acrylamide resin bed, style and/or overall printed layer, adhesion agent layer, 5～100 μ m that sequentially laminated 5～100 μ m that have dope layer, polypropylene copolymer 100～20 weight portions and polypropylene 100～0 weight portions to form are thick; Or by the substrate-side thick polyester based resin film (seeing its claim 2) of denaturing acrylamide resin bed, adhesion agent layer, 5～100 μ m that sequentially laminated 5～100 μ m that have dope layer, style and/or overall printed layer, polypropylene copolymer 100～20 weight portions and polypropylene 100～0 weight portions to form are thick; Or by the substrate-side thick transparent polyester based resin film (seeing its claim 3) of denaturing acrylamide resin bed, adhesion agent layer, 5～100 μ m that sequentially laminated 5～100 μ m that have dope layer, polypropylene copolymer 100～20 weight portions and polypropylene 100～0 weight portions to form are thick; Or by substrate-side is sequentially laminated dope layer, sex change olefin layer that 5～100 μ m are thick, adhesion agent layer, transparent polyester based resin film (claim 4) that 5～100 μ m are thick arranged.So, in this case structure by substrate-side sequentially the composition of laminated resin-coated layer all becomed privileged and limited, and main purpose has high clarity for this resin-coated metal sheet, the profile of this metallic plate is restricted, be unfavorable for the application of made metal thin shell piece.
TaiWan, China application for a patent for invention number 86106332 (notification numbers 434145) " possess than high definition reflectivity and the adhesive coated with resins sheet metal of good work " correlation technique that discloses a kind of coated with resins sheet metal for another example, it comprises: as the sheet metal of bottom chip, arithmetic mean deviation amplitude (Ra) numerical value of its roughness is between 0 micron and 10 microns; Transparent soft resin layer, it comprises unhardened mixing kenel resin bed, the coating coat of mylar, or vistanex; The following layer that comprises pigment; Have the transparent resin film of two sides through gloss finish, wherein at least one sheet metal surface is colored layer, soft resin layer, and following layer and hyaline layer cover, and each layer sequentially covers to transparent resin film from the sheet metal side.So, in this case structure by the sheet metal side sequentially the composition of laminated resin-coated layer all becomed privileged and limited, and this resin-coated metal sheet of main purpose has high clarity, and the profile of this metallic plate is restricted relatively, is unfavorable for the application of made metal thin shell piece.
TaiWan, China application for a patent for invention number 093119015 (certificate number I280190) " case of electronic device metal plate forming process and structure thereof " for another example, it is improved for aforesaid application for a patent for invention number 86106332 (notification numbers 434145) and application for a patent for invention number 85100575 (notification numbers 404888), it discloses a kind of correlation technique that the aluminium alloy base plate of skin membrane is set, its method comprises at least: one " coating solid " step, in an at least one side surface coating one deck solid by the made metal substrate of aluminium alloy, and this solid has metal dust, one " Baking out " step, heat the metal substrate of this coating solid, makes this solid suitably softening, one " roll extrusion " step, by the roller of heating, that one skin membrane roll extrusion is laminated on this solid, wherein this skin membrane is by least one polyvinyl chloride layer, a following layer, a polyester layer stacking being combined into sequentially, and following layer has metal dust, one " cooling forming " step, make this skin membrane and metal substrate be able to adherence and be combined.So, in this case structure by the composition of the laminated skin membrane of Al-alloy metal substrate one side surface by least one polyvinyl chloride layer, a following layer, a polyester layer stacking being combined into sequentially, therefore this skin membrane is becomed privileged and is limited, the profile that this metal substrate is presented is restricted, and is unfavorable for the application of made metal thin shell piece.
The new patent case of structure in TaiWan, China utility application number 093210282 (certificate number M261368) " electronic device casing metal plate structure " aforementioned application for a patent for invention number 093119015 (certificate number I280190) for another example.So, this case structure namely exists as the skin membrane of its application for a patent for invention number 093119015 has been becomed privileged the shortcoming limited.
For another example TaiWan, China utility application number 097208521 (certificate number M345706) " composition metal plate structure " disclose one comprise a metal substrate, a compound resin glue-line be coated on this metal substrate thermoplastic, and a metal decking laminated on this compound resin glue-line and this metal decking is combined with the metal substrate adherence with a running roller roll extrusion.So, two lateral surfaces one of this case structure are that metal decking one is metal substrate, therefore exist two lateral surfaces to be becomed privileged the shortcoming limited.
TaiWan, China utility application number 096215339 (certificate number M328384) " environment protection type metal-covering structure " discloses the correlation technique of a type metal-covering structure for another example, and it comprises at least: a metal substrate; One adhesion agent layer is coated at least one side surface of aforementioned metal substrate suitable the softening that heating makes; And a skin membrane is laminated then cooling on aforementioned adhesion agent layer with a roller roll extrusion by a polyurethane bottom and polyurethane surface layer stacking being combined into sequentially, and this skin membrane is combined with the metal substrate adherence.So, the composition of the skin membrane in this case structure is by by a polyurethane bottom and polyurethane surface layer stacking being combined into sequentially, therefore this skin membrane is defined by particularization, and profile or sense of touch that this metal substrate presents are restricted relatively, is unfavorable for the application of made metal thin shell piece.
In sum, all there are some shortcomings really in the prior art of various composite boards, the present invention be directed to the shortcoming of the correlation technique of the complex of various metals and the resins of disclosing such as Chinese invention patent ZL02805359.1, ZL200380102886.0, ZL200380104500.X and ZL200680046075.7 in above-mentioned prior art and method for making thereof, effectively solve.
Summary of the invention
Purpose of the present invention provides a kind of metal thin shell piece and method for making thereof with polymer conjunction, it is on the metal surface of a metal thin shell piece or wherein want to set up the part of polymer conjunction to locate, the TPR adhesion coating of the about 400-500 μ of a layer thickness m is set, set-up mode is not limit if with printing or spraying method, be coated with, the thermoplastic elastomer film that this TPR is synthesized by butadiene-styrene block copolymer and hydrocarbon Petropols; Again this metal thin shell piece that has had the TPR adhesion coating is inserted and is fixed on one with the die cavity of the ejection shaping die of the shape corresponding matching of this metal thin shell piece in; recycling plastic ejection moulding technique, these polymer conjunctions of ejection formation on the TPR adhesion coating of the metal surface of this metal thin shell piece, while making these polymer conjunctions by ejection formation, the pressure of injection material and temperature are to be combined into one with this TPR adhesion coating hot melt, and the segment thickness that forces simultaneously this TPR adhesion coating according to appointment 10% (about 40-50 μ m) must infiltrate in thin shrinkage pool existing on the metal surface of this metal thin shell piece, make these polymer conjunctions can firmly be located on the metal surface of metal thin shell piece, with the integrated composite structure body in conjunction with forming a firm combination, effectively to be reduced on metal thin shell piece processing procedure that the polymer conjunction is set and the making of mould, and can avoid the shortcomings of prior art aspect processing procedure and mould if must easily be subjected to high pressure and be out of shape with the metal thin shell piece that high pressure is fixed a point in this resin-bonded part of injection moulding mode moulding so that die cavity, and this metal surface must be first with the special aqueous solution carry out dipping process so that processing procedure comparatively complicated and environmental issue more arranged, and the shortcoming such as the material of resin-bonded part is relatively limited.
Still a further object of the present invention is to provide a kind of metal thin shell piece and method for making thereof with polymer conjunction, wherein the general plastic ejection moulding technique of ejection formation operation utilization of these polymer conjunctions is reached, and injection material adopts pressure and the temperature of general ejection formation, therefore not only be conducive to the making of ejection shaping die if can effectively simplified arrangement and the design of injection material runner, and another surface of this metal thin shell piece has to be decorated with outer covering layer such as electrodeposited coating, anodization, the baking vanish layer, skin membranes etc. are also unlikely to be out of shape because of pressurized or to damage in the ejection formation operation, reach production efficiency high, easily mass production, reduce costs and the practical function of the easy keyholed back plate of moulding quality.
A kind of metal thin shell piece with polymer conjunction, comprise: a metal thin shell piece, a TPR adhesion coating and at least one polymer conjunction, wherein: this metal thin shell piece, with the metal substrate institute machine-shaping of a tool suitable thickness, and the top layer mask on the inside and outside surface of this metal substrate has the several thin shrinkage pool of intimate uniformly dispersing, and it is spontaneous on the face of top layer in manufacturing process by this metal substrate; This TPR adhesion coating forms with the thermoplastic rubber film that butadiene-styrene block copolymer and hydrocarbon Petropols synthesize, and its thickness is 400-500 μ m, and it is arranged on the metallic inner surface of this metal thin shell piece; This polymer conjunction, utilize plastic ejection moulding technique, and the metal thin shell piece that makes to be provided with this TPR adhesion coating is inserted and is fixed in the die cavity of ejection shaping die, so that the injection material ejection formation is on the inner surface of this metal thin shell piece and form; Wherein, ejaculation pressure and the temperature of this polymer conjunction injection material during by ejection formation, with the mutual hot melt of this TPR adhesion coating, to be combined into one, and the segment thickness that forces simultaneously this TPR adhesion coating must infiltrate in the several thin shrinkage pool on the metallic inner surface of this metal thin shell piece, this polymer conjunction after ejection formation is combined with metal thin shell piece and forms integrated composite structure body.
A kind of method for making with metal thin shell piece of polymer conjunction, the metal thin shell piece that has the polymer conjunction in order to manufacture, comprise the following step: provide a metal thin shell piece, its institute of metal substrate with tool suitable thickness machine-shaping, and the top layer mask on the inside and outside surface of this metal substrate has the several thin shrinkage pool of intimate uniformly dispersing, the TPR adhesion coating of a layer thickness 400-500 μ m is set on being of this metal thin shell piece metallic inner surface, this TPR adhesion coating is by butadiene-styrene block copolymer and the synthetic thermoplastic elastomer film of hydrocarbon Petropols, recycling plastic ejection moulding technique, the metal thin shell piece that makes to be provided with this TPR adhesion coating is fixed in the die cavity of an ejection shaping die, so that injection material is at least one polymer conjunction of ejection formation on the inner surface of this metal thin shell piece and on this TPR adhesion coating, and the pressure of this polymer conjunction injection material during by ejection formation and temperature are to be combined into one with this TPR adhesion coating, and the segment thickness that forces simultaneously this TPR adhesion coating must infiltrate in the several thin shrinkage pool on the metallic inner surface of this metal thin shell piece, this polymer conjunction of ejection formation is combined with metal thin shell piece and forms integrated composite structure body, after cooling, taken out by ejection shaping die, namely complete a metal thin shell piece with polymer conjunction.
The present invention can simplify the structure of these polymer conjunctions and promote structural strength, and avoids the shortcoming of prior art, reaches the purpose that processing procedure and mould are simplified relatively, high, the easy mass production of production efficiency, reduces costs and the easy keyholed back plate of moulding quality.
For making the auditor can further understand detailed construction of the present invention and action and efficacy, after hereby cooperation is illustrated in.
The accompanying drawing explanation
Fig. 1 is the method for making schematic flow sheet of the metal thin shell piece of the present invention with resin-bonded part;
Fig. 2 is the front perspective view of metal thin shell piece one embodiment of the present invention;
Fig. 3 is that the back of the body of Fig. 2 is looked schematic perspective view;
Fig. 4 is section (the local amplification) schematic diagram of metal thin shell piece shown in Figure 2;
Fig. 5 is the sectional schematic diagram of ejection shaping die of the present invention, and wherein the resin-bonded part is installed on the metal surface of metal thin shell piece by ejection formation;
Fig. 6 is section (the local amplification) figure that the present invention has the metal thin shell piece of resin-bonded part;
Fig. 7 is solid (back of the body is looked) schematic diagram with metal thin shell piece one embodiment of resin-bonded part of the present invention.
Description of reference numerals
Metal thin shell piece 1 with polymer conjunction; Metal thin shell piece 10; Metal substrate 11; Inner surface 12; The local 12a of place; Outer surface 13; Thin shrinkage pool 14; Outer covering layer 15; TPR adhesion coating 20; Ejection shaping die 30; Die cavity 31; Mold 32; Bed die 33; Die cavity face 34; Perfusing hole 35; Injection material runner 36; Moulding die cavity 37; Polymer conjunction 40.
Embodiment
With reference to figure 1, its method for making schematic flow sheet of the present invention.Method for making with metal thin shell piece 1 of polymer conjunction of the present invention mainly comprises following steps:
One metal thin shell piece 10 is provided; Metal thin shell piece of the present invention 10 is logical refers to the 3C Product such as common product such as common computer (computer) product such as notebook computer (Notebook computer), communication (communication) product such as mobile phone or consumer (consumer) product but the shell body that do not limit, is as shown in Figure 2,3, 4 the example explanation at this shell body of take a notebook computer; This metal thin shell piece 10 comprises and does not limit with the metal substrate 11 of a tool suitable thickness as aluminium alloy base plate through processing as metal thin shell piece that punch process was formed, this metal substrate 11 has an inner surface 12 and an outer surface 13, and this inside and outside top layer face of surperficial 12,13 has the several thin shrinkage pool 14 that can be considered intimate uniformly dispersing basically naturally, and these thin shrinkage pool 14 these metal substrates 11 precision relation because of spreading face in manufacturing process such as spreading process is spontaneous; The outer surface 13 of this metal substrate 11 can be processed and have the use of decoration outer covering layer 15 as electrodeposited coating, anodization, baking vanish layer, skin membrane etc., to increase the external aesthetic property of this outer surface 13 through other processing again;
On the inner surface 12 that is metal surface sample state of this metal thin shell piece 10 or wherein want to set up the 12a of place, part of polymer conjunction, the TPR adhesion coating 20 of the about 400-500 μ of a layer thickness m is set again; This TPR adhesion coating 20 is by the synthetic thermoplastic elastomer film of butadiene-styrene block copolymer and hydrocarbon Petropols, and the set-up mode of this TPR adhesion coating 20 does not limit, as with mode of printing or spraying or complete in automatically dropping glue coating apparatus mode;
The metal thin shell piece 10 that again this has been had to a TPR adhesion coating 20 inserts and is fixed in the die cavity 31 of an ejection shaping die 30 as shown in Figure 5, this ejection shaping die 30 designs according to the existing technology of plastic ejection moulding technique, the arrangement of its structure kenel such as die cavity number, perfusing hole position, injection material runner or positioner etc. does not limit, at this, take general ejection shaping die 30 shown in Figure 5 and be the example explanation, this ejection shaping die 30 can comprise a mold 32 and a bed die 33 but not limit, wherein in the die cavity 31 of this bed die 33, be provided with one with the die cavity face 34 of the shape corresponding matching of this metal thin shell piece 10 for settling and fix this metal thin shell piece 10, this mold 32 is provided with the required perfusing hole of ejection formation 35, the moulding die cavity 37 of each polymer conjunction 40 that injection material runner 36 and wish are established etc., this perfusing hole 35 wherein, the arrangement of injection material runner 36 does not limit, this moulding die cavity 37 sets up number again, position and shape etc. do not limit, can need to change design with using, namely polymer conjunction 40 of the present invention sets up number, position and shape etc. do not limit, can be designed to bearing, the different structures such as ribs, at this, this polymer conjunction 40 take a hollow cylindrical stacker as example explanation as shown in Fig. 5-7, and the inside of this hollow cylindrical stacker generally again hot melt embed a metal (as copper) external member and lock for locking part is powerful to form a metallic stacker,
Recycling plastic ejection moulding technique, in these polymer conjunctions 40 of ejection formation on the inner surface 12 of this metal thin shell piece 10 and on this TPR adhesion coating 20, and existing pressure and the temperature of these polymer conjunctions 40 injection material 40a can be by ejection formation the time, with these TPR adhesion coating 20 hot melts, be combined into one, and force simultaneously the segment thickness of this TPR adhesion coating 20 must infiltrate in several thin shrinkage pool 14 existing on the metallic inner surface 12 of this metal thin shell piece 10 as 10% (about 40-50 μ m), these polymer conjunctions 40 of ejection formation can firmly be located on the inner surface 12 of metal thin shell piece 10, with the integrated composite structure body with metal thin shell piece 10 combination formation one firm combinations, namely become the metal thin shell piece 1 that the present invention has polymer conjunction 40,
After cooling, taken out by ejection shaping die 30, namely complete one have the polymer conjunction metal thin shell piece 1 integrated composite structure body as shown in Figure 6,7.
Above-mentioned method for making of the present invention, because this TPR adhesion coating 20 can infiltrate in several thin shrinkage pool 14 existing on the metallic inner surface 12 of this metal thin shell piece 10 in the ejection formation process, and simultaneously with the firm underground heat of polymer conjunction 40, melt adherence and be combined into one, therefore made, have between the metal thin shell piece 10 of metal thin shell piece 1 of polymer conjunction and polymer conjunction 40 to such an extent that can keep quite good adherence marriage relation, after the entity test, each polymer conjunction 40 that proof is molded on inner surface 12 all has enough stripper-resistances, be enough to bear the adhesion on the polymer conjunction 40 that various different assemblies in follow-up assembling operation are applied to corresponding cooperation, as utilize automation equipment that different assemblies are fixed on polymer conjunction 40 with screw, thus, these polymer conjunctions 40 have enough structural strengths, and can avoid the shortcomings of prior art as the aforementioned, reach the purpose that processing procedure and mould are simplified relatively.
Especially, the present invention and aforesaid these prior arts are compared, and method for making of the present invention more can meet current environmental requirement.Method for making of the present invention is utilized this metal thin shell piece 10 be metal substrate 11 as on the inner surface 12 of aluminium alloy base plate in the moulding production process of this metal substrate 11 the several thin shrinkage pool 14 of institute's self-assembling formation and intimate uniformly dispersing, so that the segment thickness of this TPR adhesion coating 20 can directly infiltrate in these thin shrinkage pools 14 in the ejection formation process, therefore processing procedure of the present invention can be avoided aforesaid ZL02805359.1, ZL200380102886.0, the prior art such as ZL200380104500.X and ZL200680046075.7 must be prepared the special aqueous solution and metal substrate first must be immersed in to the concerned process steps such as this special aqueous solution and again with the thermoplastic resin molded of tool special composition and adhere to complicated processing procedure and the environmental issue caused on the surface of this metal substrate.
In above-mentioned processing procedure, before this metal thin shell piece 10 to be metal substrate 11 arrange as the inner surface 12 of aluminium alloy base plate TPR adhesion coating 20, can need for the surface state of this inner surface 12, and first take a purified treatment step, this purified treatment step comprises and is not restricted to degreasing, brute force is scrubbed etc., main purpose is to make the working surface of this inner surface 12 to remain on clean state to a certain degree, to avoid that the follow-up operation procedure that this TPR adhesion coating 20 is set is produced to harmful effect, so that between this TPR adhesion coating 20 and this inner surface 12, reach good tight then effect.
In above-mentioned processing procedure, when utilize plastic ejection moulding technique with the inner surface 12 in this metal thin shell piece 10 on and on this TPR adhesion coating 20 during these polymer conjunctions 40 of ejection formation, these polymer conjunctions 40 can select to utilize ABS (styrene resin), PC (Merlon, Polycarbonate resin), Acrylic resin (acryl resin/acrylic resin), Nylon (nylon/polyamide) etc. but do not limit injection material 40a while usining as ejection formation, and these injection materials 40a and existing pressure and temperature when ejection formation are respectively: the ejaculation pressure 80kg/mm of ABS 2, penetrate 200 ℃ of temperature, the ejaculation pressure 120kg/mm of PC 2, penetrate 260 ℃ of temperature, the ejaculation pressure 100kg/mm of Acrylic resin 2, penetrate 240 ℃ of temperature, and the ejaculation pressure 80kg/mm of Nylon (nylon/polyamide) 2, penetrate 260 ℃ of temperature.
With reference to figure 6,7, it is respectively structural profile and solid (back of the body is looked) schematic diagram that the present invention has metal thin shell piece one embodiment of resin-bonded part.The structure that the present invention has the metal thin shell piece 1 of resin-bonded part sequentially comprises: the major parts such as a metal thin shell piece 10, a TPR adhesion coating 20 and at least one polymer conjunction 40.
This metal thin shell piece 10 comprises common computer (computer) product such as notebook computer (Notebook computer) in order to conduct, the 3C Products such as communication (communication) product such as mobile phone or consumer (consumer) product but the shell body that do not limit, comprise and do not limit with the metal substrate 11 of a tool suitable thickness as aluminium alloy base plate through processing as metal thin shell piece that punch process was formed, in this metal substrate 11, outer surface 12, it is spontaneous (for asking obvious that 13 top layer face has several thin shrinkage pool 14 its these metal substrates 11 precision relation because of spreading face in manufacturing process such as spreading process that can be considered intimate uniformly dispersing basically naturally, several thin shrinkage pool 12 in figure amplifies expression), not utilize the special aqueous solution of any process or any metal substrate 10 be immersed in to the concerned process steps of the special aqueous solution and the former, the outer surface 13 of this metal substrate 11 can be processed and have the use of decoration outer covering layer 15 as electrodeposited coating, anodization, baking vanish layer, skin membrane etc., to increase the external aesthetic property of this metal thin shell piece 10 through other processing again.
This TPR adhesion coating 20 forms with the thermoplastic rubber film that butadiene-styrene block copolymer and hydrocarbon Petropols synthesize, and the ratio of its material composition can be different from TPU, TPE film, the about 400-500 μ of its thickness m (1 μ m=10 -6M).This TPR adhesion coating 20 is arranged on the inner surface 12 that is metal surface sample state of this metal thin shell piece 10, also can only be arranged on this inner surface 12 12a of place, part that wants to set up polymer conjunction 40; The set-up mode of this TPR adhesion coating 20 does not limit, if with mode of printing or spraying method or automatically dropping glue coating apparatus mode, completed to be coated on inner surface 12.
This polymer conjunction 40 utilize plastic ejection moulding technique and ejection formation on the inner surface 12 of this metal thin shell piece 10, it sets up number, position and shape not to limit, can be with use needing to change design, as be designed to stacker as shown in Figure 6,7 or the different structure such as ribs, the 40a of injection material when these polymer conjunctions 40 are by ejection formation again<as shown in Figure 5 > existing pressure and temperature, with this TPR adhesion coating 20, to be combined into one, be these polymer conjunctions 40 between TPR adhesion coating 20 mutually hot melt be combined, and force simultaneously the segment thickness of this TPR adhesion coating 20 must infiltrate in several thin shrinkage pool 14 existing on the metallic inner surface 12 of this metal thin shell piece 10 as 10% (about 40-50 μ m), these polymer conjunctions 40 after ejection formation can firmly be located on the inner surface that is the metallic face 12 of metal thin shell piece 10, with the integrated composite structure body with metal thin shell piece 10 combination formation one firm combinations, to reach, allow in follow-up assembling operation various different assembly direct-assemblings on these polymer conjunctions 40 and the tight level of adhesion of not peeling off.
The 40a of the injection material of this polymer conjunction 40<as shown in Figure 5>comprise and be not restricted to a kind of or its combination: ABS (styrene resin), the PC (Merlon in following cohort, Polycarbonate resin), Acrylic resin (acryl resin/acrylic resin), Nylon (nylon/polyamide) etc., and these injection material<40a pressure and temperature when ejection formation be respectively: the ejaculation pressure 80kg/mm of ABS 2, penetrate 200 ℃ of temperature; The ejaculation pressure 120kg/mm of PC 2, penetrate 260 ℃ of temperature; The ejaculation pressure 100kg/mm of Acrylic resin 2, penetrate 240 ℃ of temperature; And the ejaculation pressure 80kg/mm of Nylon (nylon/polyamide) 2, penetrate 260 ℃ of temperature.
Hereby by following each embodiment, wherein metal substrate 11 is all aluminium alloy plate but outer finishing coat 30 is unlike material, further illustrates the structure of composite board 1 of the present invention and the action and efficacy that can reach thereof:
<embodiment 1 >
The metal thin shell piece 1 that the present embodiment has the resin-bonded part comprises: a metal thin shell piece 10 is for take aluminium alloy base plate 11 formations of thickness as 0.8mm, the decoration of its outer surface is a bed of cloth with outer covering layer 15, and this bed of cloth take that the institutes such as staple fibre such as nylon, polyester fiber, acryl fiber form and thickness is 0.3mm; This TPR adhesion coating 20 forms for the thermoplastic rubber film synthesized by butadiene-styrene block copolymer and hydrocarbon Petropols, the about 400-500 μ of thickness m; This polymer conjunction 40 comprises but does not limit a hollow cylindrical stacker as shown in Fig. 5-7, but and the inside hot melt of this hollow cylindrical stacker embeds a metal (as copper) external member and locks for locking part is powerful to form a metallic stacker; And these polymer conjunctions 40 are of a size of: length 262mm, width 178mm, thickness 1mm, height 9.5mm; Found that, the peel strength adherence of the polymer conjunction of the present embodiment is 5 kilograms every square centimeter, environmental testing adherence serve as reasons-40 ℃ to 85 ℃ and 85 ℃ to-40 ℃ intensifications per minute or lower the temperature 1 ℃ and through 4 circulations, wherein this polymer conjunction (40) is not peeled off with metal thin shell piece (aluminium alloy base plate).
<embodiment 2 >
The metal thin shell piece 1 that the present embodiment has the resin-bonded part comprises: a metal thin shell piece 10 is for take aluminium alloy base plate 11 formations of thickness as 0.8mm, the decoration of its outer surface is PVC (vinyl chloride resin) synthetic artificial fiber or PU (polyurethane with outer covering layer 15, Polyurethane) synthetic artificial fiber, this TPR adhesion coating 20 forms for the thermoplastic rubber film synthesized by butadiene-styrene block copolymer and hydrocarbon Petropols, the about 400-500 μ of thickness m; But this polymer conjunction 40 comprises, do not limit a hollow cylindrical stacker and embed a metal external member to form a metallic stacker for hot melt, and these polymer conjunctions 40 are of a size of: length 262mm, width 178mm, thickness 1mm, height 9.5mm; Found that, the peel strength adherence of the polymer conjunction 40 of the present embodiment is 5 kilograms every square centimeter, environmental testing adherence serve as reasons-40 ℃ to 85 ℃ and 85 ℃ to-40 ℃ intensifications per minute or lower the temperature 1 ℃ and through 4 circulations, wherein this polymer conjunction (40) is not peeled off with metal thin shell piece (aluminium alloy base plate).
<embodiment 3 >
The structure of metal thin shell piece 1 that the present embodiment has the resin-bonded part is identical with embodiment 2 substantially, difference is that this metal thin shell piece 10 forms through the aluminium sheet punch forming as the aluminium alloy base plate 11 of 0.8mm for take thickness, and outer covering layer 15 be the aluminium alloy base plate 11 of this 0.8mm thickness after punch forming, then the outer covering layer of processing with sandblast and anode surface colouring.
The above description of this invention is illustrative, and nonrestrictive, and those skilled in the art is understood, and within spirit that claim limits and scope, can carry out many modifications, variation or equivalence to it, but they all will fall within the scope of protection of the present invention.

Claims (9)

1. the metal thin shell piece with polymer conjunction, is characterized in that, comprises: a metal thin shell piece, a TPR adhesion coating and at least one polymer conjunction, wherein:
This metal thin shell piece, with the metal substrate institute machine-shaping of a tool suitable thickness, and the top layer mask on the inside and outside surface of this metal substrate has the several thin shrinkage pool of intimate uniformly dispersing, and it is spontaneous on the face of top layer in manufacturing process by this metal substrate;
This TPR adhesion coating forms with the thermoplastic rubber film that butadiene-styrene block copolymer and hydrocarbon Petropols synthesize, and its thickness is 400-500 μ m, and it is arranged on the metallic inner surface of this metal thin shell piece;
This polymer conjunction, utilize plastic ejection moulding technique, and the metal thin shell piece that makes to be provided with this TPR adhesion coating is inserted and is fixed in the die cavity of ejection shaping die, so that the injection material ejection formation is on the inner surface of this metal thin shell piece and form;
Wherein, ejaculation pressure and the temperature of this polymer conjunction injection material during by ejection formation, with the mutual hot melt of this TPR adhesion coating, to be combined into one, and the segment thickness that forces simultaneously this TPR adhesion coating must infiltrate in the several thin shrinkage pool on the metallic inner surface of this metal thin shell piece, this polymer conjunction after ejection formation is combined with metal thin shell piece and forms integrated composite structure body.
2. the metal thin shell piece with polymer conjunction as claimed in claim 1, is characterized in that, this metal substrate is an aluminium alloy plate.
3. the metal thin shell piece with polymer conjunction as claimed in claim 1, is characterized in that, this TPR adhesion coating is arranged on the metallic inner surface of this metal thin shell piece or wherein wants to set up the surface local place of polymer conjunction.
4. the metal thin shell piece with polymer conjunction as claimed in claim 1, is characterized in that, the set-up mode of this TPR adhesion coating comprises mode of printing and spraying method.
5. the metal thin shell piece with polymer conjunction as claimed in claim 1, it is characterized in that, 10% segment thickness 40-50 μ m in the thickness 400-500 μ m of this TPR adhesion coating infiltrates in the several thin shrinkage pool on the metallic inner surface of this metal thin shell piece when this polymer conjunction of ejection formation.
6. the metal thin shell piece with polymer conjunction as claimed in claim 1, it is characterized in that, the injection material of this polymer conjunction comprises a kind of or its combination in following cohort: styrene resin, Merlon, acryl resin/acrylic resin, nylon/polyamide.
7. the metal thin shell piece with polymer conjunction as claimed in claim 1, is characterized in that, it is processed outer surface setting tool one outer covering layer of this metal substrate and formed by processing.
8. the metal thin shell piece with polymer conjunction as claimed in claim 7, is characterized in that, this outer covering layer comprises a kind of in following cohort: electrodeposited coating, anodization, baking vanish layer and skin membrane.
9. the method for making with metal thin shell piece of polymer conjunction, is characterized in that, in order to manufacture the metal thin shell piece with polymer conjunction as described as claim 1 to 8 any one, comprises the following step:
One metal thin shell piece is provided, its institute of metal substrate with tool suitable thickness machine-shaping, and the top layer mask on the inside and outside surface of this metal substrate has the several thin shrinkage pool of intimate uniformly dispersing;
The TPR adhesion coating of a layer thickness 400-500 μ m is set on being of this metal thin shell piece metallic inner surface, this TPR adhesion coating is by butadiene-styrene block copolymer and the synthetic thermoplastic elastomer film of hydrocarbon Petropols;
Recycling plastic ejection moulding technique, the metal thin shell piece that makes to be provided with this TPR adhesion coating is fixed in the die cavity of an ejection shaping die, so that injection material is at least one polymer conjunction of ejection formation on the inner surface of this metal thin shell piece and on this TPR adhesion coating, and the pressure of this polymer conjunction injection material during by ejection formation and temperature are to be combined into one with this TPR adhesion coating, and the segment thickness that forces simultaneously this TPR adhesion coating must infiltrate in the several thin shrinkage pool on the metallic inner surface of this metal thin shell piece, this polymer conjunction of ejection formation is combined with metal thin shell piece and forms integrated composite structure body,
After cooling, taken out by ejection shaping die, namely complete a metal thin shell piece with polymer conjunction.
CN2010101418134A 2010-04-06 2010-04-06 Thin plastic shell with plastic binder and manufacturing method thereof CN102215653B (en)

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