CN108419184A - A kind of non-crystaline amorphous metal vibrating diaphragm - Google Patents
A kind of non-crystaline amorphous metal vibrating diaphragm Download PDFInfo
- Publication number
- CN108419184A CN108419184A CN201810179552.1A CN201810179552A CN108419184A CN 108419184 A CN108419184 A CN 108419184A CN 201810179552 A CN201810179552 A CN 201810179552A CN 108419184 A CN108419184 A CN 108419184A
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- China
- Prior art keywords
- vibrating diaphragm
- amorphous alloy
- metal
- alloy material
- amorphous
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2207/00—Details of diaphragms or cones for electromechanical transducers or their suspension covered by H04R7/00 but not provided for in H04R7/00 or in H04R2307/00
- H04R2207/021—Diaphragm extensions, not necessarily integrally formed, e.g. skirts, rims, flanges
Abstract
The invention discloses a kind of non-crystaline amorphous metal vibrating diaphragm, the coat of metal of either amorphous alloy material as the base material or amorphous alloy material of the vibrating diaphragm as the vibrating diaphragm is made by amorphous alloy material in the vibrating diaphragm.When base material or ontology of the amorphous alloy material as vibrating diaphragm, thickness is 100 300 μm, and when the coat of metal of the amorphous alloy material as vibrating diaphragm, thickness is 10 100 μm.The present invention provides a kind of non-crystaline amorphous metal vibrating diaphragms, the vibrating diaphragm damps small, good mechanical property, especially toughness and elasticity modulus are high, are made after a volume part for vibrating diaphragm or composition vibrating diaphragm due to that with very high specific strength, can replace vibrating diaphragm in the prior art in many different application environment.
Description
Technical field
The invention belongs to metal alloy compositions application fields, and in particular to a kind of non-crystaline amorphous metal vibrating diaphragm and the vibrating diaphragm are answered
With.
Background technology
With the fast development of science and technology, the requirement that people restore electroacoustic source sound quality is higher and higher, in existing phase
In the technology of pass, vibrating diaphragm is the key that restrict occurrence of equipment sound quality.In order to obtain the vibrating diaphragm of high tone quality, usually by changing vibrating diaphragm
Material is realized.Diaphragm materials are varied, be applied to varying environment under the conditions of diaphragm materials should have and use environment item
The compatible mechanical performance of part and sound characteristics are so as to fit in different use occasions.Influence the basic of diaphragm materials acoustic performance
Parameter includes density, rigidity and internal loss（That is internal damping）, in general, material is harder, density is lower, audio-frequency band is wider,
Internal loss is bigger, response is more smooth, such as in low-frequency range, centrum vibrating diaphragm substantially does whole piston motion, quality and machine
Influence of the tool performance to sound characteristics has almost accounted for 95% or more.In the prior art, the hardness, density of material and internal loss
Parameter is often to interact, it is difficult to reach the optimization selection of all parameters.
The type of vibrating diaphragm is very more, such as papery vibrating diaphragm, wooden vibrating diaphragm, plastics vibrating diaphragm etc., in general, the design of vibrating diaphragm
It is advisable it is required that being that quality is lighter, rigidity is better, can electromagnetism kinetic energy be completely converted to sound.Paper material is conventionally manufactured
The material of centrum vibrating diaphragm, although being unsuitable for using in high performance speaker, advantages, i.e. easy processing are in various shapes
Shape, process do not need the mold of complex and expensive, mechanical performance and can be adjusted in wider effective range, defect nor
Chang Mingxian, i.e. papery vibrating diaphragm is very sensitive to environment, especially sensitive to ambient humidity, with containing in environmental change papery vibrating diaphragm
Water can lead to the variation of the parameters such as Young's modulus, to influence sound characteristics.Same problem is also seen on wooden vibrating diaphragm, therewith
Unlike plastics diaphragm materials, common plastics diaphragm materials such as PP, PET, PEN, PAR, PPS, PEEK, PA, PI, PSU,
The materials such as PES, vibrating diaphragm made of different plastics because its property of raw material have the characteristics that it is different, as PET vibrating diaphragms have it is excellent
Mechanical performance and electrical insulating property have good electrical properties under high-temperature high-frequency, but corona resistance is poor, fatigue durability and frictional property
Difference, all things considered, plastics vibrating diaphragm although stable quality, being widely used, easily occur in use sticking phenomenon or
Similar shows, concrete reason be considered as during having the viscoelastic creep and use of plastic material itself heat accumulation drawn
It rises so that the bass parsing power of plastics vibrating diaphragm is relatively low.Other than the common diaphragm materials such as papery, wooden and plastics, also
Vibrating diaphragm made of the high intensity woven fibre material of resin-bonding, as made of Kafra fiber piece, carbon fiber, glass fibre etc.
Vibrating diaphragm, vibrating diaphragm made of this braided fiber is for wide-band applications occasion and non-preferred, and price of high cost, but its
Thermal stability is good, insensitive to environment, suitable for automobile audio or outdoor occasion.
Compared to above-mentioned nonmetallic vibration film, metal vibration diaphragm is as a kind of centrum diaphragm materials newly risen in recent years also someone couple
Its application is studied.The damping of metal group material is minimum, high frequency region peak value is very big, and performance is very good.Most common metal
Centrum vibrating diaphragm is aluminum and aluminum alloy mateial, vibrating diaphragm made of magnesium and magnesium alloy materials, but in the prior art, metal vibration diaphragm high frequency
Section acoustic performance is undesirable, and since metal vibration diaphragm quality is larger, in actual use to the driving of diaphragm element and control
Control difficulty than existing nonmetallic vibration film is much greater.To find out its cause, being that the molecular structure of metal material has difference
Characteristic, the mechanical performance of incomparable plastic material, such as toughness and elasticity modulus.
Invention content
In order to solve the deficiencies in the prior art, the present invention provides a kind of non-crystaline amorphous metal vibrating diaphragm, the vibrating diaphragm damping it is small,
Good mechanical property, especially toughness and elasticity modulus are high, are made after a volume part for vibrating diaphragm or composition vibrating diaphragm due to non-
Often high specific strength, can replace vibrating diaphragm in the prior art in many different application environment.
Institute of the invention technique effect to be achieved is realized by following scheme：
A kind of non-crystaline amorphous metal vibrating diaphragm is provided in the present invention, the vibrating diaphragm is made of amorphous alloy material or non-crystaline amorphous metal material
Expect the coat of metal of base material or amorphous alloy material as the vibrating diaphragm as the vibrating diaphragm.
Further, when base material or ontology of the amorphous alloy material as vibrating diaphragm, thickness is 100-300 μm,
When the coat of metal of the amorphous alloy material as vibrating diaphragm, thickness is 10-100 μm.
Further, the vibrating diaphragm elasticity modulus is 80-90GPa, Poisson's ratio 0.36-0.38, elastic limit 1.2-
2.5%。
Further, the preparation method of the vibrating diaphragm is that amorphous alloy material is utilized mold evacuated die-casting process molding or profit
Use hot extrusion molding.
Further, the preparation method of the vibrating diaphragm be by amorphous alloy material using ion vacuum sputter, vapor deposition or
Plating is covered in heterogeneous shaking membrane substrate surface.
Further, the heterogeneous shaking membrane substrate includes the papery of organic macromolecule membrane, surface with conducting medium layer
Film, graphene film.
Further, the conducting medium layer is equadag coating or graphite ene coatings.
Further, the amorphous alloy material is magnesium base amorphous alloy, al based amorphous alloy, titanium-based amorphous alloy, zirconium
One kind in base noncrystal alloy, cobalt base amorphous alloy, cu-based amorphous alloys, ni-based amorphous alloy, rare-earth-base amorphous alloy or
It is a variety of.
Further, in the amorphous alloy material include beryllium element, and beryllium element atom in the amorphous alloy material
Percentage is more than 5%.
The present invention has the following advantages：
1, non-crystaline amorphous metal vibrating diaphragm is not plastically deformed using the plastic properties of amorphous alloy material, does not generate metal in the present invention
Fatigue effect, and the vibrating diaphragm of toughness and high frequency expressive force than in the prior art is more preferably.
2, the damping of non-crystaline amorphous metal vibrating diaphragm is small in the present invention, rigidity is high, specific strength is low, the paper of vibrating diaphragm thickness than in the prior art
Matter, wooden vibrating diaphragm, plastics vibrating diaphragm thickness are lower, meet miniaturization, lightening trend.
3, non-crystaline amorphous metal vibrating diaphragm is made using the good amorphous alloy material of processability in the present invention, uses hot pressing or casting
The mode made is i.e. plastic, simpler easy compared with papery in the prior art, the molding method of wooden vibrating diaphragm.
4, non-crystaline amorphous metal vibrating diaphragm corrosion resistance is strong in the present invention, it is insensitive to change to ambient temperature and humidity, is suitable for various
Different use environments, and service life papery than in the prior art, wooden vibrating diaphragm, plastics vibrating diaphragm are longer.
Specific implementation mode
With reference to embodiment, the present invention will be described in detail.
Amorphous alloy, abbreviation non-crystaline amorphous metal, microcosmic structure with longrange disorder but shortrange order, in particular to non-
The atom of peritectic alloy is not in periodicity and translational symmetry on space arrangement, but in the miniature scale of 1-2nm and neighbour
Or the secondary interatomic bonding of neighbour（Such as ligancy, atomic distance, bond angle and bond distance's parameter）With certain regularity, because
This has the physics, chemistry and mechanical behavior for being substantially distinguished from crystal alloy.Amorphous alloy material is applied to sound in the present invention
Vibrating diaphragm is made in amorphous alloy material by field, or using amorphous alloy material as the base material of vibrating diaphragm, or amorphous is closed
The coat of metal of the golden material as vibrating diaphragm.
When base material or ontology of the amorphous alloy material as vibrating diaphragm, it is preferred to use the structure that thickness is 100-300 μm, it is non-
When the coat of metal of the peritectic alloy material as vibrating diaphragm, it is preferred to use the structure that thickness is 10-100 μm.Amorphous alloy material conduct
Vibrating diaphragm when base material or ontology, thickness is less than the other materials vibrating diaphragm under the conditions of equality strength, toughness, i.e. its specific strength
Height, therefore smaller, thinner vibrating diaphragm can be made.When material as the coat of metal or foreign substrate provides high rigidity.
Amorphous alloy material pliability under above-mentioned thickness condition is enough that bandwidth is made to slow down, and can effectively solve the problem that high frequency problem, from
And make sound quality more preferably.
Non-crystaline amorphous metal vibrating diaphragm preferably its parameter be：Elasticity modulus is 80-90GPa, Poisson's ratio 0.36-0.38, elastic pole
It is limited to 1.2-2.5%, while it is 6.20-6.80g/cm to control vibrating diaphragm density3.Above-mentioned parameter can guarantee its elasticity and performance.
Non-crystaline amorphous metal vibrating diaphragm utilizes the plastic properties of amorphous alloy material, is not plastically deformed, does not generate metal fatigue effect, such energy
Enough ensure the continuous stability of non-crystaline amorphous metal vibrating diaphragm in use.It also needs strictly to control vibrating diaphragm density in preparation process, it is close
The high control performance for then influencing vibrating diaphragm is spent, density is too low, can not obtain required intensity and toughness.
The preparation method of non-crystaline amorphous metal vibrating diaphragm is amorphous alloy material to be molded or utilized using mold evacuated die-casting process heat
If extrusion forming is then splashed amorphous alloy material using ion vacuum using amorphous alloy material as coat of metal raw material
Plating, vapor deposition or plating are covered in heterogeneous shaking membrane substrate surface.Papery in the prior art, wooden vibrating diaphragm complex process, and produce
Raw a large amount of waste water, effect on environment is big, and the non-crystaline amorphous metal vibrating diaphragm in the present invention is simple for process, and due to amorphous alloy material
The complicated vibrating diaphragm of all kinds of different size shapes can be made in efficient mouldability.Using amorphous alloy material as coat of metal original
Material is better as coat of metal raw material compared with using common metal simple substance.Above-mentioned heterogeneous shaking membrane substrate includes organic polymer
Film, surface have the paper film of conducting medium layer, graphene film, and conducting medium layer is preferably equadag coating or graphite
Ene coatings.The materials such as organic polymer film such as PP, PET, PEN, PAR, PPS, PEEK, PA, PI, PSU, PES.Graphene film
Use can further increase the electroacoustic properties such as the sensitivity, frequency response, transient response of vibrating diaphragm.
Amorphous alloy material used in the present invention be magnesium base amorphous alloy, al based amorphous alloy, titanium-based amorphous alloy,
One kind in zirconium-base amorphous alloy, cobalt base amorphous alloy, cu-based amorphous alloys, ni-based amorphous alloy, rare-earth-base amorphous alloy or
Person is a variety of, and the formula of beryllium element, and beryllium element atomic percent in the amorphous alloy material are preferably included in amorphous alloy material
Number is more than 5%.Beryllium element can promote the processability of non-crystaline amorphous metal, while can balance the density of amorphous alloy material, but need
Its dosage is strictly controlled, too high levels then influence the integral strength of non-crystaline amorphous metal vibrating diaphragm.
It can be seen from the above, the damping of non-crystaline amorphous metal vibrating diaphragm is small in the present invention, rigidity is high, specific strength is low, vibrating diaphragm thickness is than existing
Papery, wooden vibrating diaphragm in technology, plastics vibrating diaphragm thickness are lower, meet miniaturization, lightening trend, and amorphous in the present invention
Alloy vibrating diaphragm utilizes the plastic properties of amorphous alloy material, is not plastically deformed, does not generate metal fatigue effect, and toughness and height
The vibrating diaphragm of frequency expressive force than in the prior art is more preferably.Meanwhile in the present invention non-crystaline amorphous metal vibrating diaphragm corrosion resistance it is strong, to environment temperature
Humidity variation is insensitive, is suitable for a variety of different use environments, and service life papery than in the prior art, wooden shakes
Film, plastics vibrating diaphragm are longer.
Finally, it should be noted that above example be only to illustrate the embodiment of the present invention technical solution rather than to its into
Row limitation, although the embodiment of the present invention is described in detail with reference to preferred embodiment, those skilled in the art
It should be understood that the technical solution of the embodiment of the present invention can be still modified or replaced equivalently, and these are changed or wait
The range of modified technical solution disengaging technical solution of the embodiment of the present invention cannot also be made with replacement.
Claims (10)
1. a kind of non-crystaline amorphous metal vibrating diaphragm, it is characterised in that：The vibrating diaphragm is made of amorphous alloy material or amorphous alloy material
The coat of metal of base material or amorphous alloy material as the vibrating diaphragm as the vibrating diaphragm.
2. non-crystaline amorphous metal vibrating diaphragm as described in claim 1, it is characterised in that：The amorphous alloy material as vibrating diaphragm base material or
When person's ontology, thickness is 100-300 μm, when the coat of metal of the amorphous alloy material as vibrating diaphragm, thickness 10-
100μm。
3. non-crystaline amorphous metal vibrating diaphragm as described in claim 1, it is characterised in that：The vibrating diaphragm elasticity modulus is 80-90GPa, Poisson
Than for 0.36-0.38, elastic limit 1.2-2.5%.
4. non-crystaline amorphous metal vibrating diaphragm as described in claim 1, it is characterised in that：The vibrating diaphragm density is 6.20-6.80g/cm3。
5. non-crystaline amorphous metal vibrating diaphragm as described in claim 1, it is characterised in that：The preparation method of the vibrating diaphragm is by non-crystaline amorphous metal material
Material is molded or utilizes hot extrusion molding using mold evacuated die-casting process.
6. non-crystaline amorphous metal vibrating diaphragm as described in claim 1, it is characterised in that：The preparation method of the vibrating diaphragm is by non-crystaline amorphous metal material
Material is covered in heterogeneous shaking membrane substrate surface using ion vacuum sputter, vapor deposition or plating.
7. non-crystaline amorphous metal vibrating diaphragm as described in claim 1, it is characterised in that：The heterogeneous shaking membrane substrate includes that organic polymer is thin
Film, surface have the paper film of conducting medium layer, graphene film.
8. non-crystaline amorphous metal vibrating diaphragm as claimed in claim 7, it is characterised in that：The conducting medium layer is equadag coating or graphite
Ene coatings.
9. non-crystaline amorphous metal vibrating diaphragm as described in claim 1, it is characterised in that：The amorphous alloy material be magnesium base amorphous alloy,
Al based amorphous alloy, titanium-based amorphous alloy, zirconium-base amorphous alloy, cobalt base amorphous alloy, cu-based amorphous alloys, Ni-based amorphous close
One or more of gold, rare-earth-base amorphous alloy.
10. non-crystaline amorphous metal vibrating diaphragm as claimed in claim 9, it is characterised in that：Include beryllium element in the amorphous alloy material, and
Beryllium element atomic percentage is more than 5% in the amorphous alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810179552.1A CN108419184A (en) | 2018-03-05 | 2018-03-05 | A kind of non-crystaline amorphous metal vibrating diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810179552.1A CN108419184A (en) | 2018-03-05 | 2018-03-05 | A kind of non-crystaline amorphous metal vibrating diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108419184A true CN108419184A (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810179552.1A Pending CN108419184A (en) | 2018-03-05 | 2018-03-05 | A kind of non-crystaline amorphous metal vibrating diaphragm |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110536207A (en) * | 2019-04-03 | 2019-12-03 | 东莞市无疆科技投资有限公司 | Bone-conduction device |
| CN111818425A (en) * | 2020-06-08 | 2020-10-23 | 深圳市汉嵙新材料技术有限公司 | Vibrating diaphragm, sound production device, microphone assembly and vibrating diaphragm manufacturing method |
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| JPS61281845A (en) * | 1986-02-21 | 1986-12-12 | Takeshi Masumoto | Sound radiating plate for small-sized speaker |
| CN102572652A (en) * | 2010-12-02 | 2012-07-11 | 蒙特雷布勒盖股份有限公司 | Acoustic radiating membrane for a music box or striking watch |
| CN203327227U (en) * | 2013-07-10 | 2013-12-04 | 美特科技(苏州)有限公司 | Composite diaphragm structure |
| CN104469627A (en) * | 2013-12-18 | 2015-03-25 | 东莞泉声电子有限公司 | Acoustic metal vibrating diaphragm |
| CN204259146U (en) * | 2014-10-30 | 2015-04-08 | 东莞泉声电子有限公司 | Acoustics metal vibration diaphragm |
-
2018
- 2018-03-05 CN CN201810179552.1A patent/CN108419184A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61281845A (en) * | 1986-02-21 | 1986-12-12 | Takeshi Masumoto | Sound radiating plate for small-sized speaker |
| CN102572652A (en) * | 2010-12-02 | 2012-07-11 | 蒙特雷布勒盖股份有限公司 | Acoustic radiating membrane for a music box or striking watch |
| CN203327227U (en) * | 2013-07-10 | 2013-12-04 | 美特科技(苏州)有限公司 | Composite diaphragm structure |
| CN104469627A (en) * | 2013-12-18 | 2015-03-25 | 东莞泉声电子有限公司 | Acoustic metal vibrating diaphragm |
| CN204259146U (en) * | 2014-10-30 | 2015-04-08 | 东莞泉声电子有限公司 | Acoustics metal vibration diaphragm |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110536207A (en) * | 2019-04-03 | 2019-12-03 | 东莞市无疆科技投资有限公司 | Bone-conduction device |
| CN111818425A (en) * | 2020-06-08 | 2020-10-23 | 深圳市汉嵙新材料技术有限公司 | Vibrating diaphragm, sound production device, microphone assembly and vibrating diaphragm manufacturing method |
| WO2021248625A1 (en) * | 2020-06-08 | 2021-12-16 | 深圳市汉嵙新材料技术有限公司 | Vibrating diaphragm, sound production device, microphone and vibrating diaphragm manufacturing method |
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Application publication date: 20180817 |