CN104796843A - Forming method of crystallized PEEK film and vibrating film as well as crystallized PEEK vibrating film - Google Patents
Forming method of crystallized PEEK film and vibrating film as well as crystallized PEEK vibrating film Download PDFInfo
- Publication number
- CN104796843A CN104796843A CN201510149727.0A CN201510149727A CN104796843A CN 104796843 A CN104796843 A CN 104796843A CN 201510149727 A CN201510149727 A CN 201510149727A CN 104796843 A CN104796843 A CN 104796843A
- Authority
- CN
- China
- Prior art keywords
- film
- peek
- peek film
- crystallization
- amorphous
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention discloses a forming method of a crystallized PEEK film and a vibrating film, as well as the crystallized PEEK vibrating film. The forming method comprises the following steps: heating an amorphous PEEK film so that the temperature of the amorphous PEEK film reaches the temprature above a cold crystallization temperature point of the amorphous PEEK film; keeping the temprature so that the amorphous PEEK film reaches a certain crystallization degree; and cooling to form the crystallized PEEK film. According to the forming method, an amorphous PEEK film crystallization process and a vibrating film forming method also can be combined. By the aid of the method, the crystallized PEEK vibrating film with the thickness less than 8 microns also can be formed; by using the crystallized PEEK film with the thickness less than 8 microns, even thinner crystallized PEEK film, the resonant frequency F0 of a loudspeaker product can be reduced and the acoustic performance can be improved; the reliability of the loudspeaker product also can be guaranteed.
Description
Technical field
The present invention relates to the formation method of crystallization PEEK film and crystallization PEEK vibrating diaphragm, and crystallization PEEK vibrating diaphragm.
Background technology
In electroacoustic field, by the PEEK (polyetheretherketone of crystallization at present, polyether-ether-ketone) be directly formed to vibrating diaphragm as single layer of substrate material or being made into composite diaphragm is applied in loud speaker, adopt the PEEK of crystallization can improve the toughness of vibrating diaphragm as vibrating diaphragm, be conducive to the reliability of speaker product.
Along with market improving constantly loud speaker acoustic performance requirements, need the resonance frequency F0 of loud speaker more low better, also need to ensure reliability simultaneously.Just need the thickness of PEEK film more and more thinner if reduce resonance frequency F0, thickness needs to be reduced to several μm from tens μm before, simultaneously in order to meet integrity problem also needs use the PEEK film of crystallization.
Existing production technology is that PEEK heating particulates is formed PEEK film to molten condition and then cooling annealing, in process of production control is carried out to temperature and just can generate amorphous PEEK film (degree of crystallinity is about 10%) or crystallization PEEK film (degree of crystallinity is about 30%), but the cost of the crystallization PEEK film of same thickness is higher than the cost of amorphous PEEK film a lot, in addition, this technique can only ensure the PEEK raw material crystallization to 8 μm and above thickness at raw material end, and for the PEEK raw material of less than 8 μm thickness at present at the manufacturing side also uncontrollable crystallization process, so the crystallization PEEK film of less than 8 μm cannot be formed.
Summary of the invention
The object of this invention is to provide and a kind ofly form the crystallization PEEK film of lower thickness and the method for crystallization PEEK vibrating diaphragm, and the crystallization PEEK vibrating diaphragm of lower thickness.
According to a first aspect of the invention, provide a kind of formation method of crystallization PEEK film, comprise the following steps:
S1, amorphous PEEK film to be heated, make the temperature of amorphous PEEK film reach more than the cold crystallization temperature point of amorphous PEEK film;
S2, lasting insulation are to ensure that amorphous PEEK film reaches degree of crystallinity;
S3, cooling down form crystallization PEEK film.
Preferably, by amorphous PEEK film described in infrared heating.
Preferably, the thickness < 8 μm of described amorphous PEEK film.
Preferably, the temperature of described heating is between 150 DEG C-200 DEG C, and the time of described insulation is between 1s-50s.
Present invention also offers a kind of crystallization PEEK vibrating diaphragm, be made up of above-mentioned crystallization PEEK film.
According to a second aspect of the invention, provide a kind of formation method of crystallization PEEK vibrating diaphragm, comprise the following steps:
S1, amorphous PEEK film is inserted in vibrating diaphragm mould, carry out hot-forming to amorphous PEEK film, make the temperature of amorphous PEEK film reach more than the cold crystallization temperature point of amorphous PEEK film;
S2, lasting insulation are to ensure that amorphous PEEK film reaches degree of crystallinity;
S3, cooling down form crystallization PEEK vibrating diaphragm.
Preferably, adopt heating tube heating vibrating diaphragm mould to heat amorphous PEEK film.
Preferably, the thickness < 8 μm of described amorphous PEEK film.
Preferably, the temperature of described heating is between 150 DEG C-200 DEG C, and the time of described insulation is between 1s-50s.
Present invention also offers a kind of crystallization PEEK vibrating diaphragm, formed by the above-mentioned method that formed.
The present inventor finds, also do not form the technical scheme of the crystallization PEEK film of less than 8 μm thickness in the prior art, therefore, the technical assignment that the present invention will realize or technical problem to be solved are that those skilled in the art never expect or do not anticipate, therefore the present invention is a kind of new technical scheme.
Utilize method of the present invention can form the crystallization PEEK vibrating diaphragm of less than 8 μm thickness, utilize the crystallization peek vibrating diaphragm that thickness < 8 μm is even thinner, the resonance frequency F0 that can reduce speaker product promotes acoustical behavior simultaneously, can also ensure the reliability of speaker product.The present invention utilizes amorphous PEEK film to form crystallization PEEK film, reliably easy to control and cost is low in technique, can realize crystallization PEEK vibrating diaphragm in the lump further in vibrating diaphragm forming process, thus saves production process and reduce costs.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present invention, further feature of the present invention and advantage thereof will become clear.
Accompanying drawing explanation
In the description combined and the accompanying drawing forming a part for specification shows embodiments of the invention, and illustrate that one is used from and explains principle of the present invention together with it.
Fig. 1 is the flow chart of the formation method of crystallization PEEK film of the present invention.
Fig. 2 is the flow chart of the formation method of crystallization PEEK vibrating diaphragm of the present invention.
Embodiment
Various exemplary embodiment of the present invention is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, technology, method and apparatus should be regarded as a part for specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Shown in figure 1, the invention provides a kind of formation method of crystallization PEEK film, comprise the following steps:
S1, the amorphous PEEK film of less than 8 μm thickness to be heated, make the temperature of amorphous PEEK film reach more than the cold crystallization temperature point of amorphous PEEK film;
S2, lasting insulation are to ensure that amorphous PEEK film reaches degree of crystallinity;
S3, cooling down form crystallization PEEK film.
Wherein, infrared heating PEEK film can be passed through.
The crystallization PEEK film of follow-up less than the 8 μm thickness that said method can be utilized to be formed forms the diaphragm of loudspeaker through cutting the techniques such as sizing.
Crystallization process and vibrating diaphragm forming process also can merge by the present invention, shown in figure 2, present invention also offers a kind of formation method of crystallization PEEK vibrating diaphragm, comprise the following steps:
S1, amorphous PEEK film is inserted in vibrating diaphragm mould, carry out hot-forming to amorphous PEEK film, make the temperature of amorphous PEEK film reach more than the cold crystallization temperature point of amorphous PEEK film;
S2, lasting insulation are to ensure that amorphous PEEK film reaches degree of crystallinity;
S3, cooling down form crystallization PEEK vibrating diaphragm.
Wherein, the mode that heating tube can be utilized to heat vibrating diaphragm mould heats amorphous PEEK film.
Wherein, the process that can control to heat and pressurize makes both synchronously complete.
In one embodiment, the temperature of the heating of above-mentioned two kinds of methods is between 150 DEG C-200 DEG C, the time that temperature keeps is between 1s-50s, on basis of the present invention, the temperature that can heat according to technique field condition and application demand adjustment and temperature hold-time, when selecting higher heating-up temperature, temperature hold-time can correspondingly shorten, otherwise when selecting lower heating-up temperature, temperature hold-time can correspondingly extend.
After said process, degree of crystallinity is just converted into the crystallization PEEK film of degree of crystallinity more than 25% at the amorphous PEEK film of about 10%.In one embodiment, the DSC curve of the amorphous PEEK film before observing respectively and crystallization PEEK film afterwards, amorphous PEEK film has cold crystallization peak between 150 DEG C-200 DEG C, and degree of crystallinity is about 10%; Crystallization PEEK film does not have cold crystallization peak between 150 DEG C-200 DEG C, and degree of crystallinity is about 30%, and reach capacity crystallization.
Utilize method of the present invention can form the crystallization PEEK vibrating diaphragm of less than 8 μm thickness, utilize the crystallization peek vibrating diaphragm that thickness < 8 μm is even thinner, the resonance frequency F0 that can reduce speaker product promotes acoustical behavior simultaneously, can also ensure the reliability of speaker product.The present invention utilizes amorphous PEEK film to form crystallization PEEK film, reliably easy to control and cost is low in technique, can realize crystallization PEEK vibrating diaphragm in the lump further in vibrating diaphragm forming process, thus saves production process and reduce costs.
Although be described in detail specific embodiments more of the present invention by example, it should be appreciated by those skilled in the art, above example is only to be described, instead of in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above embodiment be modified.Scope of the present invention is limited by claims.
Claims (10)
1. a formation method for crystallization PEEK film, is characterized in that, comprise the following steps:
S1, amorphous PEEK film to be heated, make the temperature of amorphous PEEK film reach more than the cold crystallization temperature point of amorphous PEEK film;
S2, lasting insulation are to ensure that amorphous PEEK film reaches degree of crystallinity;
S3, cooling down form crystallization PEEK film.
2. method according to claim 1, is characterized in that, by amorphous PEEK film described in infrared heating.
3. method according to claim 1, is characterized in that, the thickness < 8 μm of described amorphous PEEK film.
4. method according to claim 3, is characterized in that, the temperature of described heating is between 150 DEG C-200 DEG C, and the time of described insulation is between 1s-50s.
5. a crystallization PEEK vibrating diaphragm, is characterized in that, is made up of the crystallization PEEK film described in any one of claim 1-4.
6. a formation method for crystallization PEEK vibrating diaphragm, is characterized in that, comprise the following steps:
S1, amorphous PEEK film is inserted in vibrating diaphragm mould, carry out hot-forming to amorphous PEEK film, make the temperature of amorphous PEEK film reach more than the cold crystallization temperature point of amorphous PEEK film;
S2, lasting insulation are to ensure that amorphous PEEK film reaches degree of crystallinity;
S3, cooling down form crystallization PEEK vibrating diaphragm.
7. method according to claim 6, is characterized in that, adopts heating tube heating vibrating diaphragm mould to heat amorphous PEEK film.
8. method according to claim 6, is characterized in that, the thickness < 8 μm of described amorphous PEEK film.
9. method according to claim 8, is characterized in that, the temperature of described heating is between 150 DEG C-200 DEG C, and the time of described insulation is between 1s-50s.
10. a crystallization PEEK vibrating diaphragm, is characterized in that, is formed by the method described in any one of claim 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149727.0A CN104796843A (en) | 2015-03-31 | 2015-03-31 | Forming method of crystallized PEEK film and vibrating film as well as crystallized PEEK vibrating film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149727.0A CN104796843A (en) | 2015-03-31 | 2015-03-31 | Forming method of crystallized PEEK film and vibrating film as well as crystallized PEEK vibrating film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104796843A true CN104796843A (en) | 2015-07-22 |
Family
ID=53561279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510149727.0A Pending CN104796843A (en) | 2015-03-31 | 2015-03-31 | Forming method of crystallized PEEK film and vibrating film as well as crystallized PEEK vibrating film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104796843A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019000965A1 (en) * | 2017-06-26 | 2019-01-03 | 陕西聚高增材智造科技发展有限公司 | Heat treatment method for 3d printed peek material part |
| CN110972034A (en) * | 2019-11-11 | 2020-04-07 | 歌尔股份有限公司 | Vibrating diaphragm and sound generating device |
| CN113473320A (en) * | 2021-07-16 | 2021-10-01 | 辽宁弗佰克高新材料有限公司 | Loudspeaker diaphragm and loudspeaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486341A (en) * | 2001-01-22 | 2004-03-31 | 三菱树脂株式会社 | Polyaryl ketone resin film and laminates therof with metal |
| US20040231110A1 (en) * | 2003-05-22 | 2004-11-25 | Hutter Charles G. | Cable tie |
| CN103475981A (en) * | 2013-08-27 | 2013-12-25 | 歌尔声学股份有限公司 | Loudspeaker vibration system |
| CN203590434U (en) * | 2013-08-27 | 2014-05-07 | 歌尔声学股份有限公司 | Loudspeaker vibration system |
| CN104025187A (en) * | 2011-10-24 | 2014-09-03 | 赫克赛尔公司 | Acoustic honeycomb with perforated septum caps |
-
2015
- 2015-03-31 CN CN201510149727.0A patent/CN104796843A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486341A (en) * | 2001-01-22 | 2004-03-31 | 三菱树脂株式会社 | Polyaryl ketone resin film and laminates therof with metal |
| US20040231110A1 (en) * | 2003-05-22 | 2004-11-25 | Hutter Charles G. | Cable tie |
| CN104025187A (en) * | 2011-10-24 | 2014-09-03 | 赫克赛尔公司 | Acoustic honeycomb with perforated septum caps |
| CN103475981A (en) * | 2013-08-27 | 2013-12-25 | 歌尔声学股份有限公司 | Loudspeaker vibration system |
| CN203590434U (en) * | 2013-08-27 | 2014-05-07 | 歌尔声学股份有限公司 | Loudspeaker vibration system |
Non-Patent Citations (1)
| Title |
|---|
| VICTREX: "PEEK薄膜成型条件参考", 《百度文库》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019000965A1 (en) * | 2017-06-26 | 2019-01-03 | 陕西聚高增材智造科技发展有限公司 | Heat treatment method for 3d printed peek material part |
| CN110972034A (en) * | 2019-11-11 | 2020-04-07 | 歌尔股份有限公司 | Vibrating diaphragm and sound generating device |
| CN113473320A (en) * | 2021-07-16 | 2021-10-01 | 辽宁弗佰克高新材料有限公司 | Loudspeaker diaphragm and loudspeaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104796843A (en) | Forming method of crystallized PEEK film and vibrating film as well as crystallized PEEK vibrating film | |
| CN105764669A (en) | Method for producing composite part, and composite part | |
| CN102443851A (en) | Stripping method of thin-film material | |
| JP2016519706A (en) | Method for adjusting PLA bead foam | |
| JP2016528074A (en) | Method and apparatus for manufacturing composite materials | |
| JP2008006814A5 (en) | ||
| CN109333902A (en) | A kind of vertical-foaming equipment | |
| CN107534080A (en) | Piezoelectric film and its manufacture method | |
| RU2008126941A (en) | METHOD FOR SUSPENSION FORMING THE END OF A TUBE FROM A THERMOPLASTIC MATERIAL, IN PARTICULAR OF A POLYOLEFIN MATERIAL, AND A TUBE FOR A FLUID PRESSURE FLUID | |
| US9402134B2 (en) | Manufacturing method for stiffened diaphragm and the manufactured diaphragm using same | |
| KR101492906B1 (en) | Heat treatment method for high crystalline of polyvinyliden fluoride | |
| WO2015007634A3 (en) | Method for shaping a plate made from a sintered and restructured polytetrafluoroethylene and applications thereof | |
| CN101783992B (en) | Vibrating diaphragm of electroacoustic transducer and manufacture method thereof | |
| US20150195654A1 (en) | Manufacturing method and usage of vebration membrane | |
| CN106003763B (en) | The processing method of one anti-deformation TAC eyeglass | |
| US20150183203A1 (en) | Compound Membrane and Method for Manufacturing Same | |
| JP2013236371A (en) | Diaphragm for speaker integrally formed with different degrees of rigidity in one polymeric film | |
| KR101678899B1 (en) | Appratus and method for manufacturing a bellows expansion joint | |
| CN106648243A (en) | Preparation method of integrally molded curved touch screen | |
| CN114762362A (en) | Acoustic diaphragm, method for manufacturing acoustic diaphragm, and acoustic device | |
| CN103707492A (en) | Polarization membrane bending method and polarization lens manufacturing method | |
| CN110171922A (en) | A kind of hot bending shape method of slide | |
| CN206589327U (en) | A kind of light polarizing film bends frock | |
| MY181617A (en) | Method for producing magnetic recording medium | |
| AU2013203969A1 (en) | Plastic Acoustic Material And Methods Of Manufacturing Thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
|
| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150722 |