CN101607446A - The manufacture method of a kind of aluminium alloy and thermoplastic resin combination - Google Patents
The manufacture method of a kind of aluminium alloy and thermoplastic resin combination Download PDFInfo
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- CN101607446A CN101607446A CNA2008101097850A CN200810109785A CN101607446A CN 101607446 A CN101607446 A CN 101607446A CN A2008101097850 A CNA2008101097850 A CN A2008101097850A CN 200810109785 A CN200810109785 A CN 200810109785A CN 101607446 A CN101607446 A CN 101607446A
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Abstract
The invention provides the manufacture method of a kind of aluminium alloy and thermoplastic resin combination, this method comprises following steps at least: an aluminum alloy sheet is provided; This aluminum alloy sheet is gone the pre-treatment of surface compact oxidation layer; The surface of this aluminum alloy sheet is comprised at least the corrosion treatment of a plurality of two layers of micron order hole; Put this aluminum alloy sheet in mould; In this mould, inject the molten thermoplastic resin, to form aluminium alloy and thermoplastic resin combination; Because of thermoplastic resin and aluminium alloy are not easy to peel off, so in e-machine, tame electricity consumption electrical equipment, be to have the advantage of metal system housing and the advantage of thermoplastic resin structure concurrently, production efficiency is high and a large amount of productivitys are arranged, can free design shape, the combination of structure.
Description
Technical field
The invention provides the manufacture method of a kind of aluminium alloy and thermoplastic resin combination, in more detail, the composition that the present invention relates to the aluminium alloy shape thing of various machining manufactured and thermoplastic resin forms a kind of works of high bond strength, can be used for carrying the aluminium alloy that the various electronic products of usefulness, tame electrical article, other structures use with parts or outer member for decoration etc. and the manufacture method of resin-bonded thing.
Background technology
Therefore the wide spectrum of parts manufacturings such as consumption electronic products, home electric goods etc. need develop a lot of viscose agent (adhesive) with metal and resin integrated technique securely, has wherein proposed a lot of extraordinary viscose agent schemes.Normal temperature or the viscose agent by the heated volatile function are used for the combination with metal and synthetic resin one, and this method is general technology commonly used now.
Other has a technology, for example be disclosed in the publication number CN 1717323A application case of China on January 4th, 2006 by Japanese Yasurou Itou Co., Ltd., denomination of invention is " complex of aluminium alloy and resin combination and a manufacture method ", and this case is on November 7th, 2003 application PCT and international open on May 21st, 2004.Its technology is earlier aluminium alloy to be done blasting treatment, and carrying out aluminium alloy and polybutylene terephthalate (PBT) resin or polyphenylene sulfide after pickling or the alkaline solution pre-treatment more again is the complex of the thermoplastic resin of main component.When the polybutylene terephthalate (PBT) resin of specific thermoplastic resin and aluminum alloy surface or polyphenylene sulfide composition thermoplastic resin contact, exothermic reaction takes place, and do not have cooling curing fast, and will immerse in the fine recess of aluminum alloy surface, cause then fixing.But this mode aluminum alloy surface is the fine hole of an individual layer, easily peels off under the different coefficient of dilatations with thermoplastic resin of aluminium alloy, therefore needs first blasting treatment, forms a coating film again.
Yet, those skilled in the art think, no matter be the moulding of resin elder generation, the resin with moulding sticks together in aluminum alloy surface with the viscose agent again, or adheres to one deck specific resin in aluminum alloy surface earlier, again with the direct straight forming on aluminium alloy of specific resin, always have more rational juncture, can omit adhesive agent, also need not adhere to one deck specific resin in aluminum alloy surface, thermoplastic resin just can be directly in the aluminum alloy surface moulding, and with aluminium alloy suitable bond strength is arranged.
Summary of the invention
In order to overcome the many disadvantages that prior art exists, the present invention is through development for a long time, developed a kind of method of making aluminium alloy and thermoplastic resin combination, can so that aluminium alloy and thermoplastic resin have quite high intensity in conjunction with interface, be difficult for peeling off.
The object of the present invention is to provide the manufacture method of a kind of aluminium alloy and thermoplastic resin combination, this manufacture method is convenient to produce the mechanism element or the assembly of aluminium alloy and thermoplastic resin combination, can be on aluminium alloy mechanism part, in conjunction with the thermoplastic resin structure spare of different shape, and aluminium alloy and thermoplastic resin be difficult for peeling off in conjunction with interface.
The invention provides the manufacture method of a kind of aluminium alloy and thermoplastic resin combination, this method comprises following steps at least:
One aluminum alloy sheet is provided;
This aluminum alloy sheet is gone the pre-treatment of surface compact oxidation layer;
The surface of this aluminum alloy sheet is comprised at least the corrosion treatment of a plurality of two layers of micron order hole;
Put this aluminum alloy sheet in mould;
In this mould, inject the molten thermoplastic resin, to form aluminium alloy and thermoplastic resin combination.
Aluminium alloy of the present invention and thermoplastic resin combination also can be described as the thermoplastics type's complex workpiece that contains aluminium alloy, and therefore, theme of the present invention also can be combination and the manufacture method that comprises aluminium alloy and thermoplastics type's complex workpiece.
In the above-mentioned manufacture method, the step of described pre-treatment is to carry out in the acid solution of the alkaline solution of 1-10 molar concentration or 1-10 molar concentration.
The step of the corrosion treatment of described two layers of micron order hole was carried out 1 to 10 minute in the etching bath of the acid solution of the alkaline solution of 1-10 molar concentration or 1-10 molar concentration.
The step of above-mentioned corrosion treatment comprises steps of chemical attack and electrochemical corrosion step, when it is steps of chemical attack, this steps of chemical attack to be forming a plurality of two layers of micron order hole, and these a plurality of two layers of micron order hole sizes are at least more than 1 μ m, and the degree of depth of hole reaches at least 1 μ m.
When it was the electrochemical corrosion step, the corrosion treatment step was to carry out with the electrochemical corrosion step that passes to ac mode.It is to pass to alternating current on two graphite electrodes that the electrochemical corrosion step of ac mode is carried out electrochemical corrosion, puts and carries out and described aluminium alloy test piece is parallel to these two graphite electrodes.That is, the electrochemical corrosion step of above-mentioned ac mode is carried out electrochemical corrosion for comprising a graphite electrode, and this aluminium alloy test piece is carried out for another electrode; That is to say that preferably, the step of above-mentioned corrosion treatment is that the electrochemical corrosion step that passes to the direct current mode is carried out, it is negative electrode that this electrochemical corrosion step comprises a graphite electrode, and this aluminium alloy test piece is that anode carries out.
" a plurality of " of the present invention are meant two or more.
In the manufacture method of the present invention, the described method of injecting the molten thermoplastic resin in this mould comprises and is selected from ejection formation, injection moulding, co-extrusion modling or hot-forming and roll extrusion and clamp-ons any of group that method forms.
After the step of corrosion treatment of the present invention and put this aluminum alloy sheet in a mould before, preferably also comprise the step of clearing up chemical product.
The present invention is immersed in the solution aluminium alloy through chemical treatment or electrochemical treatments, makes aluminum alloy surface produce that big or small 1 μ m is above, the hole of the degree of depth at least 1 μ m, and this hole has staggering and multilayer, helps thermoplastic resin and is attached on the aluminium alloy.When the thermoplastic resin of fusion is criticized when overlaying on aluminum alloy surface, the thermoplastic resin of fusion pours into these multi-layer intercrossed micron order holes, treat the thermoplastic resin cooling curing of fusion, aluminium alloy and thermoplastic resin utilize these multi-layer intercrossed micron order holes fastening each other tightly, and because of the staggered characteristic of hole, aluminium alloy can not peeled off because of thermal coefficient of expansion is different with thermoplastic resin, produces the aluminium alloy of a high bond strength and the combination of thermoplastic resin.This combination and manufacture method are convenient to produce the mechanism element or the assembly of aluminium alloy and thermoplastic resin combination, just on aluminium alloy mechanism part, in conjunction with the thermoplastic resin structure spare of different shape.
Description of drawings
Fig. 1 a: the schematic diagram when the present invention carries out pre-treatment and chemical attack.
Fig. 1 b: the schematic diagram when the present invention carries out electrochemical corrosion with alternating current, aluminium alloy can be switched on or no power.
Fig. 1 c: another schematic diagram when carrying out electrochemical corrosion with alternating current of the present invention, aluminium alloy can be switched on or no power.
Fig. 1 d: the schematic diagram when the present invention carries out electrochemical corrosion with direct current.
Produce the various production environments of the aluminium alloy of the multi-layer intercrossed micron order hole of surperficial tool:
Fig. 2: the present invention produces the aluminium alloy test piece production procedure schematic diagram of the multi-layer intercrossed micron order hole of surperficial tool.
Fig. 3 a: the aluminum alloy sheet of the micron order hole that the present invention surface tool is multi-layer intercrossed.
Fig. 3 b: the aluminium alloy and the thermoplastic resin combination of the micron order hole that the present invention surface tool is multi-layer intercrossed.
Drawing reference numeral:
5---cell body 10---aluminium alloy 11---thermoplastic resins
The multi-layer intercrossed micron order hole of 12---aluminium alloy and thermoplastic resin combinations 15---
30---electrode 40---pre-treatment step 50---steps of chemical attack
50---electrochemical corrosion step 60---Chemical cleaning
65---change into and handle 70---aluminium alloy test piece step of the multi-layer intercrossed micron order hole of tool
The specific embodiment
Describe the present invention in detail below in conjunction with accompanying drawing, but do not limit practical range of the present invention.
Please refer to Fig. 1 a, carry out the schematic diagram of pre-treatment for foundation one embodiment of the present invention.At first, after the section 10 earlier of 1xxx to 7xxx series alloys again to comprise NaOH, KOH, Na
2CO
3Be about the 1-10% molar equivalent etc. solution concentration, 20 ℃ to 60 ℃ were soaked 10 seconds to 3 minutes down, to remove grease, dust and the dense oxide on the aluminum alloy surface.
Behind aluminium alloy 10 surface compact oxide removals, be different from the solution that prior art is soaked in the derivative that contains amine or amine and be attached to aluminum alloy surface to form a chemical substance, method of the present invention be allow aluminum alloy surface produces between big or small 1 μ m to the 100 μ m, the staggered corrosion hole between the degree of depth 1 μ m to the 50 μ m.The formation method of corrosion hole can be chemical attack or electrochemical corrosion.
The method of chemical attack, similar with the method for pre-treatment.Device as shown in Figure 1a, chemical corrosion groove 5 is built-in with acidity or alkaline solution, place chemical corrosion groove 5 to carry out under 20 ℃ to 60 ℃ aluminium alloy 10,1-10 minute corrosion (please also refer to Fig. 3 a to reach the staggered corrosion hole 15 that produces between big or small 1 μ m to the 100 μ m, between the degree of depth 1 μ m to the 50 μ m on aluminium alloy 10 surfaces again
The aluminum alloy sheet of the micron order hole that the surface tool is multi-layer intercrossed.With light microscope or sweep electron microscope, can see the corrosion hole behind secondary immersion corrosion liquid, many places present two layers or above compound staggered micron order hole 15.At this moment, the surface has 10% to 90% surface area approximately, has produced multi-layer intercrossed micron order hole.
With electrochemical corrosion, for example, pact ± 1V can quicken the generation of compound corrosion hole to the ± alternating current of 10V.Shown in Fig. 1 b, aluminum alloy sheet 10 no powers that are corroded and handle, and two electrodes 30 of alternating current use graphite, aluminum alloy sheet 10 to place in the middle of the graphite electrode 30 of two energisings.Or shown in Fig. 1 c, aluminum alloy sheet 10 is an electrode of alternating current, and two another electrodes 30 that graphite is alternating current.Certainly, then need only a graphite electrode 30 if only want the single surface of corroding aluminum alloy sheet 10, in addition, aluminium closes the another side of sheet 10, then covers with corrosion protection printing ink or plastic cement diaphragm.
Another electrochemical corrosion be with aluminum alloy sheet 10 as anode, and a graphite flake 30 is as negative electrode.Shown in Fig. 1 d, pass to the DC voltage of 1V to 10V.Generally speaking, electrochemical corrosion can be quickened the generation of compound staggered micron order hole 15.Etching time is shorter, and hole compares common chemical attack, and staggered micron order hole 15 density are bigger.And generation time shortens.At this moment, the surface has 10% to 90% surface area approximately, has produced multi-layer intercrossed micron order hole.
Among another embodiment, except simple chemical attack or electrochemical corrosion, also can use so that a scheduling of being scheduled to is staggered, to produce needed staggered micron order hole 15 in chemical attack and electrochemical corrosion.
Fig. 2 is the step schematic diagram that produces the aluminium alloy of the multi-layer intercrossed micron order hole of surperficial tool.Comprise pre-treatment 40, and chemical attack handle 50 or electrochemical corrosion handles 55, and Chemical cleaning 60 with remove corrosion product 60 in the corrosion hole, and last changing into handle 65.Changing into and handling 65 is to be similar to the aluminum alloy anode treatment step, and aluminum alloy sheet 10 itself is as anode, and graphite is as negative electrode, and electrolyte then is to use different coloring liquids according to the color and luster of institute's intended for dyeing.The electrolyte of pink salt for example is to produce bronze-colored or black, in addition if then be golden yellow or yellow green with the electrolyte that contains silver salt.
Subsequently, if the electronic component of complicated shape, aluminum alloy sheet 10 of the present invention can provide intensity, and needs the part of complicated processing to use stamping forming plastics or thermoplastic resin 11 to substitute, and then the multi-layer intercrossed micron order hole 15 aluminium gold gold of confession of the present invention will be good selections.At first, the aluminum alloy sheet 10 of the multi-layer intercrossed micron order hole 15 of punch forming tool is placed in the mould, again with ejection formation, injection moulding, co-extrusion modling or hot-forming and roll extrusion clamp-on method wherein any, directly with resin forming on the aluminum alloy sheet 10 of the multi-layer intercrossed micron order hole 15 of tool, the combination 12 that aluminium alloy part and resin component can be combined securely, this production stage is compared to the production stage of viscose agent, not only significantly shorten the production time, also simplify production procedure.In addition, because the metal surface that the significant proportion surface area is still possessed on aluminum alloy sheet 10 surfaces, the shared ratio of metal surface and frosting is as previously mentioned according to multi-layer intercrossed micron order hole producing method and variant.Therefore, when carry out becoming part with the plastics punch forming again after painted, can increase another kind of aesthetic property to change into to handle.
Referring to Fig. 3 a is the aluminum alloy sheet of the multi-layer intercrossed micron order hole of the present invention surface tool; Fig. 3 b is the aluminium alloy and the thermoplastic resin combination of the multi-layer intercrossed micron order hole of the present invention surface tool.
Often need aluminium alloy part and resin component is integrated securely with respect to tradition, produce in existing viscose agent mode, the viscose agent must be coated on the aluminium alloy part, again will be the resin component of ejection formation be attached to parts manufacturings such as many consumption electronic products on the aluminium alloy, home electric goods, produce, the present invention can omit a lot of steps.
The aluminum alloy sheet 10 of multi-layer intercrossed micron order hole of the present invention except above-mentioned directly and treat the production of ejection formation part by one-step, also can do another kind of the use.For example with cylinder the thermoplastic resin 11 of fusion is clamp-oned in the multi-layer intercrossed micron order hole 15, and made aluminum alloy sheet 10 present two kinds of interfaces, one is thermoplastics type's interface, and the structural member of bonding other plastic cement materials of user can be provided.Another kind is the interface of metal and metalline combination.Because the metal surface of significant proportion surface area is still possessed on the aluminum alloy sheet surface, not only can carry out paintedly to change into to handle as above-mentioned, to increase aesthetic property, the user also can be with aluminum alloy sheet of the present invention in conjunction with the constitutional detail that belong to metalline together.
Aluminum alloy sheet of the present invention has following advantage:
(1) at first, even the thermal coefficient of expansion of thermoplastic resin and aluminium alloy is different, but because hole interlocks, And make aluminium alloy and thermoplastic resin go deep into interlock, therefore can not peel off because of the difference of thermal coefficient of expansion, as This can produce the aluminium alloy of a high bond strength and the combination of thermoplastic resin.
(2) aluminium alloy of the present invention and thermoplastic resin combination are fit to directly with ejection formation production very much Thermoplastic plastic's structural member only need be with the aluminium alloy of the multi-layer intercrossed micron order hole of punch forming tool as for penetrating Go out in the mould, directly resin component is taken shape on the aluminium alloy of the multi-layer intercrossed micron order hole of tool, namely Aluminium alloy part can be combined securely with resin component.
The metal surface of (3) still possessing the significant proportion surface area because of the aluminum alloy sheet surface not only can carried out Look, and increase aesthetic property, and the user also can be provided many a kind of selections, the user also can be with the present invention Aluminum alloy sheet in conjunction with belonging to the constitutional detail of metalline together.
Claims (10)
1. the manufacture method of aluminium alloy and thermoplastic resin combination comprises following steps at least:
One aluminum alloy sheet is provided;
This aluminum alloy sheet is gone the pre-treatment of surface compact oxidation layer;
The surface of this aluminum alloy sheet is comprised at least the corrosion treatment of a plurality of two layers of micron order hole;
Put this aluminum alloy sheet in mould;
In this mould, inject the molten thermoplastic resin, to form this complex workpiece.
2. manufacture method as claimed in claim 1, the step of wherein above-mentioned pre-treatment are to carry out in alkaline solution 1-10 molar concentration or acid solution 1-10 molar concentration.
3. manufacture method as claimed in claim 1, the step of the corrosion treatment of two layers of wherein above-mentioned micron order hole are to carry out 1 to 10 minute in the etching bath of alkaline solution 1-10 molar concentration or acid solution 1-10 molar concentration.
4. manufacture method as claimed in claim 1, the step of wherein above-mentioned corrosion treatment are steps of chemical attack forming above-mentioned a plurality of two layers of micron order hole, and these a plurality of two layers of micron order hole sizes are at least more than 1 μ m, and the degree of depth of hole reaches at least 1 μ m.
5. manufacture method as claimed in claim 1, wherein above-mentioned corrosion treatment step are to carry out with the electrochemical corrosion step that passes to ac mode.
6. it is to pass to alternating current on two graphite electrodes that manufacture method as claimed in claim 5, the electrochemical corrosion step of wherein above-mentioned ac mode are carried out electrochemical corrosion, puts and carries out and described aluminium alloy test piece is parallel to these two graphite electrodes.
7. manufacture method as claimed in claim 5, the electrochemical corrosion step of wherein above-mentioned ac mode carry out electrochemical corrosion for comprising a graphite electrode, and this aluminium alloy test piece is carried out for another electrode.
8. manufacture method as claimed in claim 1, the step of wherein above-mentioned corrosion treatment are that the electrochemical corrosion step that passes to the direct current mode is carried out, and it is negative electrode that this electrochemical corrosion step comprises a graphite electrode, and this aluminium alloy test piece is that anode carries out.
9. manufacture method as claimed in claim 1, the wherein above-mentioned method of injecting the molten thermoplastic resin in this mould comprise and are selected from ejection formation, injection moulding, co-extrusion modling or hot-forming and roll extrusion and clamp-on any of group that method forms.
10. manufacture method as claimed in claim 1, after the step of wherein above-mentioned corrosion treatment and put this aluminum alloy sheet in a mould before, also comprise the step of clearing up chemical product.
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| CNA2008101097850A CN101607446A (en) | 2008-06-17 | 2008-06-17 | The manufacture method of a kind of aluminium alloy and thermoplastic resin combination |
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| CNA2008101097850A CN101607446A (en) | 2008-06-17 | 2008-06-17 | The manufacture method of a kind of aluminium alloy and thermoplastic resin combination |
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