CN109130069A - Titanium alloy-plastic compound manufacturing method - Google Patents
Titanium alloy-plastic compound manufacturing method Download PDFInfo
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- CN109130069A CN109130069A CN201710453988.0A CN201710453988A CN109130069A CN 109130069 A CN109130069 A CN 109130069A CN 201710453988 A CN201710453988 A CN 201710453988A CN 109130069 A CN109130069 A CN 109130069A
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- Prior art keywords
- titanium alloy
- plastic compound
- manufacturing
- plastic
- compound
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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)
- ing And Chemical Polishing (AREA)
Abstract
A kind of manufacturing method of titanium alloy-plastic compound, comprising the following steps: a titanium alloy substrate is provided；Etching, obtains micron order gully and the compound configuration of surface of nano grade pore in the titanium alloy substrate surface；In the surface injection moulding plastic with micron order gully and the compound configuration of surface of nano grade pore of the titanium alloy substrate, titanium alloy-plastic compound is obtained.
Description
Technical field
The present invention relates to a kind of manufacturing methods of titanium alloy-plastic compound.
Background technique
Titanium or titanium alloy has good mechanical performance and mechanical property, excellent physics and chemical property, such as low close
Degree, specific strength height, highly corrosion resistant, worm hang in magnetic, anti-height, and there are also excellent casting characters, earliest for space flight, boat
In the industrial productions such as sky, petroleum, sea water desalination and daily life utensil.
In recent years under 3C Product " light and short ", personalized and noveltyization trend guidance, product casing and inner member
The exploitation of material is increasingly tended to using titanium or titanium alloy, and uses titanium or titanium alloy and dissimilar material (such as engineering plastics) phase
In conjunction with mode learn from other's strong points to offset one's weaknesses.Not only the high-intensity performance feature of titanium or titanium alloy had been utilized, but also has utilized the superior of plastics
Processability, and then the structure design defect of product complexity is solved, therefore titanium or titanium alloy will be in 3C electronic product casing (such as hand
Machine, digital camera, laptop, smartwatch etc.) paid attention to and applied in industry.
Titanium or titanium alloy and the common combination technology of plastics have hot melts mode, but bond strength is low, poor reliability.?
There is the combination by electrochemical filming and injection molding, although bond strength is higher, used electrolyte is to be fluorinated
Based on object or chromate, toxicity is big, seriously pollutes environment, and high to personal safety coefficient of injury.Therefore method is combined for two kinds
Using being restricted.
Summary of the invention
In view of this, it is necessary to provide it is a kind of with high bond strength and environmental protection titanium alloy-plastic compound production side
Method.
A kind of manufacturing method of titanium alloy-plastic compound, comprising the following steps:
One titanium alloy substrate is provided；
Etching, obtains micron order gully and the compound configuration of surface of nano grade pore in the titanium alloy substrate surface；
It is molded and moulds on the surface with micron order gully and the compound configuration of surface of nano grade pore of the titanium alloy substrate
Glue obtains titanium alloy-plastic compound.
The present invention uses environment-friendly titanium alloy process of surface treatment, and preparation has micron order gully and nano grade pore composite junction
The titanium alloy surface form of structure.The micron order gully and nano grade pore composite construction easily pass through nanometer injection molding with plastic cement
Mode combines, and titanium alloy and plastic cement is made to have excellent binding force.And this technological operation is simple, does not need plating to nothing
Poison ring is protected, and is with a wide range of applications.
Specific embodiment
The present invention is described in further detail below.
A kind of manufacture titanium alloy-plastic compound method that embodiment of the present invention provides.Include the following steps:
The first step provides a titanium alloy substrate, carries out degreasing degreasing processing to the titanium alloy substrate.
Degreasing degreasing processing is carried out to the titanium alloy substrate according to common method, is then eluted with water described titanium alloy-based
The surface of material.
Second step is activated the titanium alloy substrate after degreasing degreasing.
Specifically, it is the dilute sulphur of 1-10wt% that the titanium alloy substrate, which after degreasing degreasing, is immersed in mass percent,
It is handled 1~60 minute in acid or salting liquid.Then it is cleaned with deionized water, makes the titanium alloy substrate clean surface.
Third step is etched titanium alloy surface by process of surface treatment, in the titanium alloy substrate surface
Obtain micron order gully and the compound configuration of surface of nano grade pore.
Specifically, the etching process includes rough etch processing and microetch processing.That is, the titanium alloy surface will carry out two
Secondary etching first carries out rough etch processing and carries out microetch processing again.
In rough etch processing, an acidic etching liquid being made of acid and buffer is prepared, by the titanium alloy-based of activated processing
Material is placed in the acidic etching liquid and etches.Etch temperature is 80-100 DEG C, and etching period is 60-300 minutes.In the acid
Property etching solution in, the weight percent or concentration of the acid are 2wt% to 20wt%, and the weight percent of the buffer is
0.5wt% to 10wt%.The acid can be made of one or more such as oxalic acid, citric acid, hydrochloric acid, phosphoric acid.The buffer
It is received by oxalic acid, tri-sodium phosphate, the one or more that phosphoric acid hydrogen two is received, biphosphate is received form.
The chemical principle of rough etch is as follows: M+nH+→Mn++n/2H2↑。
Wherein, M is other metals in titanium or its alloy.
After the completion of etching, it is cleaned by ultrasonic the titanium alloy substrate 3-5 minutes with deionized water.
Adjust the concentration, temperature, time etc. of above-mentioned technique, the surface topography of available difference etching degree.When necessary,
It repeats described rough etch processing step 3 to 6 times, so that the titanium alloy substrate surface obtains surface topography more evenly.
To rough etch, treated that the titanium alloy substrate carries out microetch processing.In microetch processing, one is prepared by alkali, salt and is added
The alkaline etching liquid for the mixture composition for adding agent to form, by rough etch, treated that the titanium alloy substrate is placed in that the alkalinity is lost
It carves and is etched in liquid.Etch temperature is 10-100 DEG C, and etching period is 1-200 minutes.In the alkaline etching liquid, the weight of the alkali
It measures percentage or concentration is 0.01wt% to 5wt%, the weight percent of the salt is 0.5wt% to 30wt%, the addition
The weight percent of agent is 0.05wt% to 10wt%.The alkali is by one of common sodium hydroxide, potassium hydroxide, ammonium hydroxide
Or several compositions.The salt received by common sodium carbonate, sodium bicarbonate, carbonic acid dihydro, sodium nitrate, potassium carbonate, saleratus, carbon
One or more of compositions such as acid dihydride potassium, potassium nitrate, potassium sodium tartrate, ammonium nitrate.
The chemical principle of microetch is as follows: M+nOH-→M(OH)n。
Wherein, M is other metals in titanium or its alloy.
After the completion of etching, the titanium alloy substrate is placed in oxalic acid solution and is neutralized.The weight of the oxalic acid
Percentage is 1wt% to 10wt%.Finally, being cleaned by ultrasonic the titanium alloy substrate 3-5 minutes with deionized water.
It is aobvious in JSM-6701F Flied emission scanning electron by the titanium alloy substrate sample after process of surface treatment
Micro- microscopic observation, discovery sample surfaces have micron order gully and nano grade pore composite construction form.It can see under low range
Micron scale construction is made of the groove structure being interspersed.Groove width is 100-2000 nanometers, trench depth 50-1000
Nanometer.It can be seen that nanoscale structures are distributed in whole surface under high magnification, aperture is 5-200 nanometers, and the structure and plastic cement have
There is excellent binding force.
4th step provides a mold, puts the titanium alloy substrate into the in-mold molding, obtains titanium alloy-plastic cement
Complex.
The titanium alloy substrate Jing Guo above-mentioned processing is placed in the mold, a plastic cement is provided, and by the modeling
Glue is molded into the titanium alloy substrate surface, by way of injection molding in conjunction with the plastic cement of high fluidity, obtains high combination
Titanium alloy-plastic compound of intensity.Mold described in present embodiment is formed by plastic production.
The titanium alloy-plastic compound is carried out physical vapour deposition (PVD) (Physical Vapor by the 5th step
Deposition is that is, PVD), thin film is obtained to reach exterior decorative effect.This step can be omitted as needed.
Tensile test is carried out to the titanium alloy-plastic compound.Specifically, by pulling force test piece in accurate push-pull effort
Tensile test is carried out on meter, the titanium alloy substrate is as follows: with crystal type plastic cement bond strength
| Plastic cement | Tensile strength/MPa |
| Toray black PBT | 20~25 |
| Celanese black PPS | 22~27 |
To above-mentioned complex after having carried out high temperature and humidity storage test in 72 hours and 48 hours cold shock testings,
The bond strength of the titanium alloy substrate and crystal type plastic cement is without obvious decaying, it is known that the combination of titanium alloy-plastic compound
Intensity is not substantially reduced.
To the titanium alloy-being sealed property of plastic compound test, one titanium alloy-plastic compound is taken, and soaked
Enter in red ink, by the method operation of standard red ink, tensile test then is carried out to the titanium alloy-plastic compound, is seen
The case where examining plastic cement and titanium alloy faying face, has not observed that red ink enters bond area.Prove the titanium alloy-plastic cement
The leakproofness of complex binding site is fine.
The present invention uses environment-friendly titanium alloy process of surface treatment, and preparation has micron order gully and nano grade pore composite junction
The titanium alloy surface form of structure.The micron order gully and nano grade pore composite construction easily pass through nanometer injection molding with plastic cement
Mode combines, and titanium alloy and plastic cement is made to have excellent binding force.And this technological operation is simple, does not need plating to nothing
Poison ring is protected, and is with a wide range of applications.
It is understood that for those of ordinary skill in the art, can do in accordance with the technical idea of the present invention
Various other changes and modifications out, and all these changes and deformation all should belong to the protection model of the claims in the present invention
It encloses.
Claims (10)
1. a kind of manufacturing method of titanium alloy-plastic compound, comprising the following steps:
One titanium alloy substrate is provided；
Etching, obtains micron order gully and the compound configuration of surface of nano grade pore in the titanium alloy substrate surface；
In the surface injection moulding plastic with micron order gully and the compound configuration of surface of nano grade pore of the titanium alloy substrate, obtain
To titanium alloy-plastic compound.
2. the manufacturing method of titanium alloy-plastic compound as described in claim 1, it is characterised in that: by the titanium alloy
Substrate was put into the step of in-mold molding, comprising the following steps: provides a plastic cement, and by the plastic-injection described in
Titanium alloy substrate surface obtains the titanium alloy-plastic compound.
3. the manufacturing method of titanium alloy-plastic compound as described in claim 1, it is characterised in that: lost to titanium alloy
In the step of quarter, the etching includes rough etch processing and microetch processing.
4. the manufacturing method of titanium alloy-plastic compound as claimed in claim 3, it is characterised in that: the rough etch processing packet
It includes: providing one by acid and the acidic etching liquid that forms of buffer, treated that the titanium alloy substrate is placed in is described by activated
It is etched in acidic etching liquid.
5. the manufacturing method of titanium alloy-plastic compound as claimed in claim 4, it is characterised in that: the acidic etching liquid
In, the weight percent of the acid is 2wt% to 20wt%, and the weight percent of the buffer is 0.5wt% to 10wt%.
6. the manufacturing method of titanium alloy-plastic compound as claimed in claim 4, it is characterised in that: etch temperature 80-
100 DEG C, etching period is 60-300 minutes.
7. the manufacturing method of titanium alloy-plastic compound as claimed in claim 3, it is characterised in that: the microetch processing packet
It includes: the alkaline etching liquid that is made of alkali, salt and additive is provided, it will treated that the titanium alloy substrate is placed in institute through rough etch
It states in alkaline etching liquid and etches.
8. the manufacturing method of titanium alloy-plastic compound as claimed in claim 7, it is characterised in that: the alkaline etching liquid
In, the weight percent of the alkali is 0.01wt% to 5wt%, and the weight percent of the salt is 0.5wt% to 30wt%, institute
The weight percent for stating additive is 0.05wt% to 10wt%.
9. the manufacturing method of titanium alloy-plastic compound as claimed in claim 7, it is characterised in that: after the completion of microetch processing,
The titanium alloy substrate is placed in neutralisation treatment in oxalic acid solution, the weight percent of the oxalic acid solution be 1wt% extremely
10wt%.
10. the manufacturing method of titanium alloy-plastic compound as claimed in claim 7, it is characterised in that: etch temperature 10-
100 DEG C, etching period is 1-200 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710453988.0A CN109130069A (en) | 2017-06-15 | 2017-06-15 | Titanium alloy-plastic compound manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710453988.0A CN109130069A (en) | 2017-06-15 | 2017-06-15 | Titanium alloy-plastic compound manufacturing method |
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| CN109130069A true CN109130069A (en) | 2019-01-04 |
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| CN201710453988.0A Pending CN109130069A (en) | 2017-06-15 | 2017-06-15 | Titanium alloy-plastic compound manufacturing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113422084A (en) * | 2021-04-30 | 2021-09-21 | 上海交通大学 | Titanium alloy surface micro-nano particle composite electric conduction enhancement structure and preparation method thereof |
| CN114381722A (en) * | 2021-12-20 | 2022-04-22 | 鸿富锦精密电子（成都）有限公司 | Titanium alloy surface treatment method, composite material preparation method and composite material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522682A (en) * | 2014-12-25 | 2016-04-27 | 比亚迪股份有限公司 | Hyper-elastic nickel-titanium alloy-elastic resin composite, hyper-elastic nickel-titanium alloy substrate, preparation method for composite and electronic product shell |
-
2017
- 2017-06-15 CN CN201710453988.0A patent/CN109130069A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522682A (en) * | 2014-12-25 | 2016-04-27 | 比亚迪股份有限公司 | Hyper-elastic nickel-titanium alloy-elastic resin composite, hyper-elastic nickel-titanium alloy substrate, preparation method for composite and electronic product shell |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113422084A (en) * | 2021-04-30 | 2021-09-21 | 上海交通大学 | Titanium alloy surface micro-nano particle composite electric conduction enhancement structure and preparation method thereof |
| CN114381722A (en) * | 2021-12-20 | 2022-04-22 | 鸿富锦精密电子（成都）有限公司 | Titanium alloy surface treatment method, composite material preparation method and composite material |
| CN114381722B (en) * | 2021-12-20 | 2024-02-23 | 鸿富锦精密电子（成都）有限公司 | Titanium alloy surface treatment method, preparation method of composite material and composite material |
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Effective date of registration: 20201029 Address after: 518109 Building E11, Foxconn Science Park, No. 2 East Ring Road, Tenth Industrial Zone, Pinus tabulaeformis, Longhua Street, Longhua District, Shenzhen City, Guangdong Province Applicant after: Youer Hongxin Detection Technology (Shenzhen) Co.,Ltd. Applicant after: Fu Tai Hua Industry (Shenzhen) Co.,Ltd. Address before: 065000 Foxconn C01, Jianshe South Road, Anci District, Hebei, Langfang 369, China Applicant before: YOUER INDUSTRIAL MATERIAL (LANGFANG) Co.,Ltd. |
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