CN107471533A - The engaging member of metal base and metal and plastics - Google Patents
The engaging member of metal base and metal and plastics Download PDFInfo
- Publication number
- CN107471533A CN107471533A CN201710812215.7A CN201710812215A CN107471533A CN 107471533 A CN107471533 A CN 107471533A CN 201710812215 A CN201710812215 A CN 201710812215A CN 107471533 A CN107471533 A CN 107471533A
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- Prior art keywords
- metal base
- fomale
- micron order
- plastic material
- metal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of metal base and the engaging member of metal and plastics.The surface of the metal base has micron order male and fomale(M＆F) and cellular pore, the profile mean breadth RSm of the micron order male and fomale(M＆F) is 1 400 μm, average Valley Depth Rz is 1 15 μm, the cellular pore is formed on the micron order male and fomale(M＆F), the average pore size scope of the cellular pore is 10 500nm, and the micron order male and fomale(M＆F) is configurable for carrying the plastic material of injection molding.The technical effects of the invention are that, it is possible to increase connect the combination power of plastic material and metal base on metal base.
Description
Technical field
The invention belongs to materials processing technology field, in particular it relates to the knot of a kind of metal base and metal and plastics
Component.
Background technology
In electronic communication industry, increasing electronic product forms product knot using the compound form of metal and plastics
Structure, this structure design can realize abundant functional effect.For example, need product outward appearance present metallicity and it is internal
Structure is needed in the case of reducing weight, saving material cost, it is possible to using metal and the compound design of plastics.
The conventional composite mode of metal and plastics includes adhesive bonds, buckle engages or the mode such as rivet interlacement.But
It is that traditional complex method has that compound reliability is low, need to increase the defects of mechanism being fixedly connected.With the development of technology,
It has also appeared complex method of the plastic injection in metal surface in the prior art.When carrying out the injection molding of plastics, with gold
Belong to material as base material, by the direct injection molding of plastics on the metal material.But the combination power between metal and plastics
It is limited, the risk to come off between the two be present, compound reliability is difficult to improve.
Therefore, it is necessary to be improved to the combination process of metal and plastic material, the structure for improving Material cladding is reliable
Property, or the structure of product made of simplification, reduce increases additional component on product.
The content of the invention
It is an object of the present invention to provide a kind of improved metal base.
According to the first aspect of the invention, there is provided a kind of metal base, the surface of the metal base have micron order
Male and fomale(M＆F) and cellular pore, the profile mean breadth RSm of the micron order male and fomale(M＆F) is 1-400 μm, average Valley Depth Rz
For 1-15 μm, the cellular pore is formed on the micron order male and fomale(M＆F), the average pore size scope of the cellular pore
For 10-500nm, the micron order male and fomale(M＆F) is configurable for carrying the plastic material of injection molding.
Alternatively, the mean depth scope that the cellular pore extends inward from the surface of stainless steel substrate is 10-
200nm。
Alternatively, the material of the metal base is stainless steel.
Alternatively, the metal base forms the micron order male and fomale(M＆F) on surface by first time etching processing, then
By second of etching processing cellular pore is formed on the micron order male and fomale(M＆F).
It is described present invention also offers a kind of metal and the engaging member of plastics, including above-mentioned metal base and plastic material
Plastic material injection molding is on the micron order male and fomale(M＆F).
Alternatively, the plastic material includes thermoplastic resin and packing material, and the packing material is in the plastics material
Mass percent in material is 5-40%, and the packing material includes nylon fiber, carbon fiber, glass fibre, aromatic series polyamides
At least one of amine fiber, calcium carbonate, magnesium carbonate, silica and clay.
Alternatively, the plastic material includes polyphenylene sulfide (PPS), poly terephthalic acid butanol resin (PBT), gathered
At least one of acid amides (PA), makrolon (PC) and polyolefin.
It was found by the inventors of the present invention that in the prior art, although occurring some metal materials
Compound technical scheme is molded with plastic material, still, for the complex method of metal and plastic material, in the prior art not
Occur the high technical scheme of improved, compound reliability.Therefore, the technical assignment or to be solved that the present invention to be realized
Technical problem be it is that those skilled in the art never expect or it is not expected that, therefore the present invention is a kind of new technical side
Case.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is the structural representation of the engaging member of metal and plastics provided by the invention；
Fig. 2 is the cross-sectional scans electron microscope of the engaging member of metal and plastics provided by the invention；
Fig. 3 is the scanning electron microscope (SEM) photograph of cellular pore provided by the invention.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless have in addition
Body illustrates that the unlimited system of part and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative to be never used as to the present invention below
And its application or any restrictions that use.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
The invention provides a kind of metal base 1, the metal base 1 is used to carry plastic material 22, and plastic material 22 can
It is fixed on direct injection on the metal base 1.Fig. 1 shows the structural form that metal base 1 is combined with plastic material 22.
The metal base 1 forms micron order male and fomale(M＆F) 11 through first time etching process, and the profile mean breadth RSm of the male and fomale(M＆F) is
1-400 μm, average Valley Depth Rz is 1-15 μm.Through second of etching process after and, formed and received on micron order male and fomale(M＆F) 11
The cellular pore 12 of meter level.Nanoscale honeycomb broad pore distribution is on the micron order male and fomale(M＆F) 11.The cellular pore 12
Average pore size scope is 10-500nm.
It is further preferred that the mean depth model that the cellular pore 12 extends inward from the surface of stainless steel substrate
Enclose for 10-200nm.The shape characteristic of the cellular pore 12 of the nanoscale to be formed on micron order male and fomale(M＆F) 11 is shown in Fig. 3,
The plastic material that the cellular pore 12 of nanoscale is available for staying thereon is embedded, and improves combination power.
The micron order male and fomale(M＆F) 11 can be by scanning electron microscopic observation, and surface is in concavo-convex alternately pattern, periodic distribution knot
Structure feature is more apparent.The roughness value of micron order male and fomale(M＆F) 11 can use three rich Mitutoyo SURFTEST SJ-310 instruments to survey
Examination, can effectively, comprehensively characterize product surface information.The profile mean breadth RSm of micron order male and fomale(M＆F) 11 of the present invention is
1-400 μm, average Valley Depth Rz is 1-15 μm.Preferably, the profile mean breadth RSm of micron order male and fomale(M＆F) 11 is 100-
200 μm, average Valley Depth Rz is 5-10 μm.Fig. 2 shows that the pattern of the micron order male and fomale(M＆F) 11 on the surface of metal base 1 is special
Sign, and show the characteristics of injection of plastic material 22 is embedded into micron order male and fomale(M＆F) 11.The parameter of shape characteristic is upper
Micron order male and fomale(M＆F) 11 in the range of stating is more beneficial for being molded with plastic material 22 and combined, and structure distribution is reasonable, and depth is more moderate.
More preferable corrosive effect can be obtained on the premise of the structural reliability of final combination product is ensured.According to theory analysis meter
Calculate, profiled plan width RSm values are smaller, and the sunk structure distribution of metal surface is more dense, evenly.And if the average width of profile
It is excessive to spend RSm values, then concave surface spacing can be caused excessive, cause metal base to be combined with plastic cement unstable.
Further, average Valley Depth Rz can characterize the waviness situation of micron order male and fomale(M＆F), and numerical value is bigger, rise and fall
Degree is bigger, and the difference of peak and valley is bigger.In the prior art, the Rz values of metallic substrate surface are less than 5 μm mostly, plastic material shape
It is weaker into pulling capacity on metal base, more in below 30MPa.In the present invention, the etching process of use is that micron order is recessed
The average Valley Depth Rz values on convex surface reach more than 5 μm.Larger waviness can be embedded in more plastic materials, obtain larger
Pulling capacity.Plastic material is moulded on metal base provided by the invention, can measure and be applied more than more than 30MPa's
During drawing active force, plastic material could be pulled up from metal base.
Alternatively, the material of the metal base is preferably stainless steel, and stainless steel substrate can be extensively using electronic product
In.Certainly, other metal materials can also be as the material of the metal base such as aluminium alloy.
Metal base of the present invention forms predetermined surface appearance feature preferably through twice etching processing.First,
By first time etching processing, the micron order male and fomale(M＆F) is formed in metallic substrate surface.Then, at then by second of etching
Reason, cellular pore is formed on the micron order male and fomale(M＆F) of metal base.
Metal base provided by the invention has the following technical effect that first, the technical program is corroded on metal base
Etch the micron order bumps relief fabric with larger contour line.Larger average Valley Depth Rz causes micron order male and fomale(M＆F)
With significant contoured surface, the area that plastics are combined with metal base is added, more plastics can be accommodated in male and fomale(M＆F)
Material.
Second, cellular pore adds the surface roughness of micron order male and fomale(M＆F), improves plastics and metal base
Bonding effect.After one or many corrosion corrosions, serious spot corrosion occurs for the surface of metal base, respectively to longitudinal direction and horizontal stroke
To Corrosion developing, cellular pore is finally formed on micron order male and fomale(M＆F), hole wall is integrated with metal base.This is compared to table
For metallic substrate surface of the face covered with oxide-film or graininess deposit, stronger company can be formed with plastic material
Connect relation.Therefore, injection combines the engaging member that plastic material is formed on metal base provided by the invention, in drawing or cuts
During cutting, metal base is not readily separated with plastic material, damaged.It ensure that plastic material injection on metal base reliable
Property, prevent corrosion cracking, mechanics fracture situations such as.
Further, present invention also offers a kind of metal and the engaging member of plastics, as shown in figure 1, including above-mentioned gold
Belong to base material 1 and plastic material 22.Micron order male and fomale(M＆F) 11 of the injection molding of plastic material 22 in the metal base 1
On.
Preferably, the plastic material includes thermoplastic resin and packing material.Packing material is entrained in thermoplastic resin
In fat.The packing material is nylon fiber, carbon fiber, glass fibre, aromatic polyamide fibre, calcium carbonate, magnesium carbonate, two
At least one of silica and clay, the scope of the packing material shared mass percent in the plastic material is 5-
40wt%.The packing material can be adulterated before injection molding technique is carried out and is filled in thermoplastic resin.
Stainless steel is 1.5 × 10 as the linear expansion coefficient of metal base-5/ DEG C, and the linear expansion coefficient of plastic material exists
6-8×10-5/ DEG C, the linear expansion coefficient for differing larger between stainless steel and plastic material is unfavorable for the solidification process of plastic material.Its
Its metal material equally exists this problem as metal base.Therefore, it is necessary to adulterated in thermoplastic resin for being modified
Packing material, to reduce the linear expansion coefficient of plastic material.For example, the linear expansion coefficient of glass fiber material be only 3.8 ×
10-5/ DEG C, the materials such as glass fibre can be mixed in thermoplastic resin, make the linear expansion coefficient of plastic material composition with
Stainless steel and other metal materials as close as.
Alternatively, the thermal plastic material include polyphenylene sulfide (PPS), poly terephthalic acid butanol resin (PBT),
At least one of polyamide (PA), makrolon (PC) and polyolefin.
In one embodiment of the invention, using 304 thick existing 1.5mm stainless steel plates as metal base, punching
Be cut into 18mm*44mm rectangle, carry out sanding and polishing, after oil removing cleaning is carried out to it.Then in weakly alkaline cleaning fluid
300s is impregnated, is then put into deionized water and is cleaned and dry.By to the temperature of corrosive liquid of first time corrosion, concentration, when
Between etc. parameter regulated and controled, with reference to roughness tester, the micron order bumps facial contour mean breadth RSm of product is 200 μm, is put down
Equal Valley Depth Rz is 10 μm.So it can make metallic substrate surface that there is larger waviness by technical arrangement plan.And
Pore-forming, drying, injection molding are etched by anticaustic liquid.304 stainless steel substrates after above-mentioned etching process are tested into piece, are placed in
In injection forming mold, polybutylene terephthalate (PBT) (PBT) resin combination containing 20% glass fibre is molded.Then
Engaging member made of 304 stainless steels and plastics is fixed on progress product extension test on universal testing machine, tests 6 respectively
Group test piece, the average drawing force value of test piece is 1767N, about 35MPa.Test result is as shown in table 1 below.By plastic material from
Required active force is pulled up on stainless steel substrate to significantly improve compared to prior art.
| Sample | Adhesion/N |
| 1 | 1750 |
| 2 | 1800 |
| 3 | 1765 |
| 4 | 1815 |
| 5 | 1690 |
| 6 | 1780 |
| Average value | 1767 |
Table 1
Engaging member provided by the invention has above-mentioned technique effect, significantly improves the pulling capacity of engaging member.Wherein, it is cellular
Lifting of the pore for pulling capacity has obvious action.Especially, insertion, the pore of vertical distribution can be more beneficial for molten plastic
The filling of material.
Another important technology effect of the present invention is that product engaging member has more excellent air-tightness.Air-tightness, water proofing property are
As the purpose of such technology application, electronic information industry is mainly used in.Cellular pore prepared by this technical scheme is
The essential condition of air-tightness is obtained, plastics are tightly combined together with metallic matrix.In the prior art scheme, product table
Surface state is mostly micron-sized hole, but such hole is relatively large in diameter.After injection molding plastic material, plastics cooling meat, plastics
Slight peeling is produced between metal base, causes air-tightness to decline.
In one embodiment of the invention, using 304 thick existing 1.5mm stainless steel plates as metal base, enter
Row sanding and polishing, after oil removing cleaning is carried out to it.Then 300s is impregnated in weakly alkaline cleaning fluid, is then put into deionized water
Middle cleaning is simultaneously dried.The parameters such as temperature, concentration, time by the corrosive liquid to once corroding regulate and control, with reference to roughness
Tester, the micron order bumps facial contour mean breadth RSm of product is 180 μm, and average Valley Depth Rz is 8 μm.So it can lead to
Technical arrangement plan is crossed, makes metallic substrate surface that there is larger waviness.Pore-forming is etched through anticaustic liquid after and, dry,
Injection molding.304 stainless steel substrates after above-mentioned etching process are tested into piece, are placed in injection forming mold, injection contains 20%
Polybutylene terephthalate (PBT) (PBT) resin combination of glass fibre.In order to further characterize the knot of plastics and stainless steel
Effect is closed, using putting pressure type detection, after engaging member is filled with into gas, with the air leakage amount of pressure gauge direct measurement engaging member,
Truly react the combination effect of plastic material and stainless steel substrate.As a result it is as shown in table 2.
| Sample | Sample size | Fraction defective | Yield |
| Air tightness test product | 100 | 0% | 100% |
Table 2
As shown in Table 2, the air-tightness of the sample of 100 batch engaging members is all qualified, and this has directly with this programme into pore structure
The association connect.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel it should be understood that example above merely to illustrating, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (7)
- A kind of 1. metal base, it is characterised in that the surface of the metal base has micron order male and fomale(M＆F) and cellular pore, The profile mean breadth RSm of the micron order male and fomale(M＆F) is 1-400 μm, and average Valley Depth Rz is 1-15 μm, described cellular Pore is formed on the micron order male and fomale(M＆F), and the average pore size scope of the cellular pore is 10-500nm, the micron Level male and fomale(M＆F) is configurable for carrying the plastic material of injection molding.
- 2. metal base according to claim 1, it is characterised in that the cellular pore is from the surface of stainless steel substrate The mean depth scope extended inward is 10-200nm.
- 3. metal base according to claim 1, it is characterised in that the material of the metal base is stainless steel.
- 4. metal base according to claim 1, it is characterised in that the metal base exists by first time etching processing Surface forms the micron order male and fomale(M＆F), is then formed by second of etching processing on the micron order male and fomale(M＆F) cellular Pore.
- A kind of 5. engaging member of metal and plastics, it is characterised in that including claim 1-4 it is one of any described in metal base And plastic material, the plastic material injection molding is on the micron order male and fomale(M＆F).
- 6. metal according to claim 5 and plastics engaging member, it is characterised in that the plastic material includes thermoplastic resin Fat and packing material, mass percent of the packing material in the plastic material are 5-40%, the packing material bag Include in nylon fiber, carbon fiber, glass fibre, aromatic polyamide fibre, calcium carbonate, magnesium carbonate, silica and clay It is at least one.
- 7. metal according to claim 5 and plastics engaging member, it is characterised in that the thermal plastic material includes polyphenylene sulfide In ether resin (PPS), poly terephthalic acid butanol resin (PBT), polyamide (PA), makrolon (PC) and polyolefin at least It is a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812215.7A CN107471533B (en) | 2017-09-11 | 2017-09-11 | Metal substrate and metal-plastic bonding member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812215.7A CN107471533B (en) | 2017-09-11 | 2017-09-11 | Metal substrate and metal-plastic bonding member |
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| Publication Number | Publication Date |
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| CN107471533A true CN107471533A (en) | 2017-12-15 |
| CN107471533B CN107471533B (en) | 2020-07-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280920A (en) * | 2018-10-31 | 2019-01-29 | 南京中和至诚信息技术有限公司 | A kind of surface has the aluminium alloy and its preparation method and application of micro-nano structure |
| CN114474793A (en) * | 2021-12-31 | 2022-05-13 | 歌尔股份有限公司 | Carbon fiber metal composite material and preparation method thereof |
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| CN103582329A (en) * | 2012-07-24 | 2014-02-12 | 富泰华工业（深圳）有限公司 | Shell and manufacturing method thereof |
| CN207465724U (en) * | 2017-09-11 | 2018-06-08 | 歌尔股份有限公司 | The engaging member of metal base and metal and plastics |
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2017
- 2017-09-11 CN CN201710812215.7A patent/CN107471533B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103582329A (en) * | 2012-07-24 | 2014-02-12 | 富泰华工业（深圳）有限公司 | Shell and manufacturing method thereof |
| CN207465724U (en) * | 2017-09-11 | 2018-06-08 | 歌尔股份有限公司 | The engaging member of metal base and metal and plastics |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280920A (en) * | 2018-10-31 | 2019-01-29 | 南京中和至诚信息技术有限公司 | A kind of surface has the aluminium alloy and its preparation method and application of micro-nano structure |
| CN109280920B (en) * | 2018-10-31 | 2021-07-02 | 南京中和至诚信息技术有限公司 | Aluminum alloy with micro-nano structure on surface and preparation method and application thereof |
| CN114474793A (en) * | 2021-12-31 | 2022-05-13 | 歌尔股份有限公司 | Carbon fiber metal composite material and preparation method thereof |
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| CN107471533B (en) | 2020-07-24 |
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