CN106028229A - Telephone receiver film and preparation method thereof - Google Patents
Telephone receiver film and preparation method thereof Download PDFInfo
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- CN106028229A CN106028229A CN201610604096.1A CN201610604096A CN106028229A CN 106028229 A CN106028229 A CN 106028229A CN 201610604096 A CN201610604096 A CN 201610604096A CN 106028229 A CN106028229 A CN 106028229A
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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
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
Abstract
The invention relates to the technical field of voice film, and specifically relates to telephone receiver film and a preparation method thereof. The method comprises the steps of A, overlapping, cutting, punching and clipping intermediate original film and surface original film, thereby preparing sleeve film, wherein the sleeve film comprises an intermediate frame group formed by the intermediate original film, and a surface frame group punched from the surface original film; B, preparing engineering original film by filling through a fan gate, and punching and clipping the engineering original film, thereby preparing engineering film group; and C, washing the intermediate frame group, the surface frame group and the engineering film group, bepowdering and cementing the upper surface and lower surface of the intermediate frame group, adhering the surface frame group on the upper surface of the intermediate frame group, adhering the engineering film group on the lower surface of the surface frame group, and carrying out punching and clipping to prepare a plurality of pieces of telephone receiver film. The preparation method of the telephone receiver film is simple; mass production can be realized; the miniature telephone receiver film can be prepared; and the prepared telephone receiver film has high elasticity, high toughness, good transient state, high sensitivity, high frequency response and everlasting good sound quality.
Description
Technical field
The present invention relates to sound technical field of membrane, be specifically related to a kind of receiver thin film and preparation method thereof.
Background technology
Along with people's living standard improves, the requirement of sound equipment facilities a series of for earphone, speaker etc. is more and more higher, special
Not being for mobile phone and the requirement of built-in earplug speaker, trend of its development is to have the audio become better and better and increasingly
Little sound-producing device.Thin film, as one of the key component of sounding original paper, has vital impact to the tonequality of speaker,
And it is more difficult to prepare small-sized receiver thin film, it is important that the design of the most small-sized receiver thin film is always constantly brought forth new ideas in the industry
One of problem.
The objective indicators such as the frequency response curve of speaker are mainly determined by the geometry of thin film, and the tonequality of speaker, sound
Learn the subjective index such as sense of hearing mainly to be determined by the material of thin film.The thin film having the speaker of excellent tonequality and sense of hearing must possess
Two parts: one is the segmentation vibrations that can as far as possible reduce self, and two is to have the best rigidity.So-called segmentation vibrations refer to
In the transmittance process of power, speaker self deforms upon, and produces the noise the most different from sound source so that the sound of speaker
Noisy unclear, the even phenomenon of serious distortion.And the best rigidity, it is possible to reduce segmentation vibrations, be also tonequality simultaneously
One guarantee.The making material of thin film has a lot, such as metallic film, paper film, tiffany thin film, plastic sheeting, biology
Thin film etc., the material of vibrating diaphragm parts most important to loudspeaker unit quality influence, the vibrating diaphragm of unlike material different process has
Different Young's modulus, relative damping, density, percentage elongation, hot strength, tearing toughness etc., these performances directly influence
Quality factor Q value, causes headphone unit different quality.
Wherein, paper film is popular long, is widely used on some speakers, but due to paper film moisture-sensitive
Shortcoming so that its tonequality is unstable, gradually replaced by other thin film.It is good, easy that plastic sheeting has low cost, plasticity
The advantages such as processing, but the poor rigidity of plastic sheeting, this drastically influence the tonequality of speaker.But no matter paper material, plastics
Material, all due to material cause, cannot reach ultra-thin thickness, and the unreasonable structure arranged, sound membrane material cannot be sent
Optimal tonequality.
Summary of the invention
It is an object of the invention to for above-mentioned deficiency of the prior art, it is provided that a kind of receiver thin film and preparation thereof, use
This preparation method can prepare hypomegetic receiver thin film, and the receiver thin film of the present invention uses three-decker to be bonded, the thinnest
Thickness is 0.02-0.04mm, have high resiliency, high tenacity, preferable transient state, sensitivity, frequency response, lasting good tonequality excellent
Point.
The purpose of the present invention is achieved through the following technical solutions:
A kind of preparation method of receiver thin film, it is characterised in that: comprise the following steps
Step (A): middle former film and surface former film overlap, cutting, punching press are cut out little mantle of making, and mantle includes by middle former film
The middle boxes group formed, the surface frame group stamped out by the former film in surface；
Step (B): use fan gate to fill out former of engineering, less prepared engineering films group is cut out in punching press；
Step (C): middle boxes group, surface frame group and engineering films group are cleaned, the equal dusting of upper and lower surface of middle boxes group, on
Glue, then in the upper surface coating surface frame group of middle boxes group, is finally fitted in the lower surface of middle boxes group by engineering films group,
Punching press sanction is little makes several receiver thin film；
Wherein, engineering films group includes that several engineering films, middle boxes group include several middle boxes, if surface frame group includes
Dry surface frame；
Wherein, dusting uses beryllium copper metal powder.
Owing to the volume of receiver thin film is little, thickness is thin, so being difficult to receiver during one receiver thin film of single production
Thin film positions and puts, and the present invention by multiple receiver film design together, forms a mantle, then strikes out
Type, a mantle includes 8-12 the full film of monotelephone, and the set membrane area of formation is big, and convenient location is with fixing, it is possible to set in surrounding
Meter fixing hole, effectively fixes the position of film, makes production more effective during punch forming.Using beryllium copper metal powder, beryllium copper is simultaneously
Copper alloy with beryllium as main alloy element, also referred to as beryllium-bronze.It is the senior flexible material that in copper alloy, performance is best
Material, have that the highest intensity, elasticity, hardness, fatigue strength, elastic hysteresis be little, anti-corrosion, wear-resisting, cold-resistant, high connductivity, nonmagnetic, rush
Hit and do not produce a series of excellent physics, chemistry and the mechanical properties such as spark, have processing beryllium-bronze and cast dividing of beryllium-bronze.Often
Casting beryllium-bronze have Cu-2Be-0.5Co-0.3Si, Cu-2.6Be-0.5Co-0.3Si, Cu-0.5Be-2.5Co.Conventional
Processing beryllium-bronze have: Cu-2Be-0.3Ni, Cu-1.9Be-0.3Ni-0.2Ti.Beryllium-bronze is heat treatment reinforcement alloy.Processing
Beryllium-bronze is mainly used as various senior have elastic component, and particularly requires good conductive performance, corrosion-resistant, wear-resisting, cold-resistant, nothing
The various elements of magnetic, are used as bellows, diaphragm, corrugated tube, microswitch etc. in a large number.Preferably, use mass fraction is Cu97%,
The processing beryllium-bronze of Be2.2%, Ni0.3%, 0.5Ti.
Preferably, a length of 15mm of single receiver thin film, a width of 5.9mm.
Wherein, the temperature that fan gate described in step (B) is filled is 110-130 DEG C, and sealed pressure is 20-80bar, lock
Sum velocity is 8-15s.Liquid-state silicon gel is that therefore, liquid-state silicon gel is laterally by a fan-shaped entrance die cavity gradually spread out
Available distribution evenly, it is possible to decrease the internal stress of goods, flow liner and directionality effect are greatly reduced in the same manner, reduce deformation,
Can reduce the probability bringing air into, die cavity aerofluxus is good in addition, and gas can be avoided to be mixed in melt simultaneously.Sealed Stress control
In certain dynamics scope, can well control the thickness of receiver thin film, prevent film destruction, and sealed speed is 8-15s, with
The time of the solidification of liquid-state silicon gel matches, it is to avoid the too early sealed not molding of solidification.
Wherein, cleaning and specially use silica gel abluent to be coated cleaning twice described in step (C), coating thickness is
0.2-0.5mm。
Described silica gel cleaning agent is made up of the raw material of following weight fraction: silica gel 20-45 part, hydroxide 2-20 part, table
Face activating agent 1-30 part, water 5-70 part, it is preferable that 45 parts of silica gel, sodium hydroxide 4 parts, ten disulfobenzene sodium sulfonates 1 part, alkyl
Phenol polyethenoxy ether 1 part, fat alcohol polyethylene ether 1 part, 58 parts of water.This silica gel cleaning agent can be made into liquid, paste or powdery, nothing
Organic volatile solvent, nontoxic pollution-free, strong to the removal power of obstinate greasy dirt, gluey greasy dirt, remove rear surface and do not have impurity, it is not necessary to two
Secondary labor cleaning, can directly carry out follow-up attaching film.
Wherein, dusting described in step (C) is specially and uses beryllium copper metal powder to spray on the ring of surface, spraying temperature
For 20-120 DEG C, coating thickness is 0.01-0.03mm.
Beryllium is rare metal, and it has the biggest potentiality in the performance improving high-frequency transducer.The weight of receiver thin film is
Affect the key factor of receiver sensitivity.Moving-mass is the main restricting factor of the sensitivity of receiver transmission band, low-density
Material light, with aluminum (2.7g/cm3) and titanium (4.5g/cm3) compare, beryllium is a kind of low density metals: 1.85g/cm3.Just
Property and weight ratio, be referred to as " specific stiffness " be the Common advantages that higher structure material is had, be then must to sound film of loudspeaker
Standby advantage, general metal has good rigidity, and Young's modulus is up to up to ten thousand, but density is the highest, and the ratio of only beryllium
Rigidity is higher, and specific stiffness is about 7 times of titanium or aluminum, it is preferable that the beryllium copper of beryllium copper metal powder mass ratio be 7-9:2-
3.5, spraying temperature is 117 DEG C, and coating thickness is 0.02mm.Ultra-thin thickness and using can be saved with the proportioning of copper metal
While expensive rare metal, receiver thin film can be made to have good transient state, sensitivity, frequency response, be substantially improved the clear of sound
Crisp, penetration power and level.
Wherein, gluing described in step (C) uses silane adhesive, and the pressure of gluing is 30-80bar, silane adhesive
Hardness be 40-80 degree.Described silane adhesive is made up of the raw material of following weight fraction: ethanol 60-90 part, isopropanol 0-30
Part, methanol 0.01-5 part, silane 1-5 part.Alcohols in silane adhesive and silica gel have good intermiscibility, can be formed with silica gel
Strongly, durable and humidity and the molecular bridge of resistance to temperature, silane and silica gel can form firm silicon at room temperature fast-curing
Oxygen alkane cross-linked structure (Si-O-Si), can strengthen mechanical performance and chemically-resistant, the weatherability of receiver thin film.When silica adhesive
When coating thickness is 25 μm ~ 75 μm, the adhesive force of the solidfied material of this silica adhesive is 1 grade, and pencil hardness is >=4H, anti-impact
The power of hitting >=50cm.Preferably, the gluing pressure of gluing silane adhesive is 50 bar, and hardness is 60 degree, and coating thickness is 25 μm.
Wherein, the former film in described centre is the mixture of the one or more than one in FPC, PEN, PEEK, PU, PET.
FPC is made up of polyimides, and density is high, has well bending property；The strand rigidity of PEN is big, and structure is in flat
Planar, has following excellent performance: intensity height, dimensional stability and Heat stability is good, chemical resistance and hydrolytic resistance are strong；
PEEK contains the linear aromatic race macromolecular compound of chain link, the mechanicalness that chemicals-resistant burn into is superpower；PU density is low, quality
Softness, the anti-wear performance of excellence, anti-flex performance；The damping of excellence, non-skid property；PET has within the scope of wider temperature
Excellent physical and mechanical properties, life-time service temperature is up to 120 DEG C, and electrical insulating property is excellent, and even under high-temperature high-frequency, it is electrical
Can be still preferable, but corona resistance is poor, creep resistance, fatigue durability, and rub resistance, dimensional stability are the most fine.Preferably, make
With the PET of 0.1mm thickness, having good mechanical property, impact strength is 3 ~ 5 times of other thin film, and folding resistance is good, can increase
The thin film strength of receiver, the most resistance to creep, resistance to fatigue resistance, abrasion-resistant and good stability of the dimension, service life can be increased.
Wherein, the material of former of described engineering and the former film in surface is liquid-state silicon gel.Described liquid-state silicon gel is methyl ethylene
Silica gel: containing hydrogen silicone oil is 2-3:1.2-2.4 in mass ratio, methyl ethylene silica gel moisture resistance, electrical insulating property, surface non-stick and
Hydrophobicity performance is all fine, and compression is little, resistance to saturated vapor, and containing hydrogen silicone oil has particularly excellent hydrophobicity simultaneously, with first
Base vinyl silica gel is compounding to be used, and has fine cohesive and waterproof and dampproof property, after adapter ring is coated with after liquid-state silicon gel, makes thin
Film has good water proofing property, prevents thin film moisture effect transient state.
A kind of receiver thin film, this receiver thin film includes that engineering thin slice, middle boxes and surface frame, described engineering thin slice include setting
The central mode being placed in centre and the retainer ring being arranged at outside central mode, the shape kissing of described retainer ring, middle boxes and surface frame
Closing, described middle boxes is arranged at retainer ring upper surface, and described surface frame is arranged at middle boxes upper surface, and described central mode includes setting
The film frame being placed in central mode surrounding and the sound film being arranged in film frame.
Engineering thin slice, adapter ring and surface ring all by after one-body molded punching press again prepare, integrated engineering thin slice
Film frame can make the adapter ring with the laminating of engineering thin slice and together with surface ring is well fixed on, and viscous by liquid-state silicon gel
Closing, fastness is higher, and more preferably, more preferably, the film frame of engineering thin slice and sound film are integrated fan to tonequality simultaneously for transient state, sensitivity, frequency response
Shape cast gate molding, structure is more stable, and the distortion of sound film is less, and tonequality is more preferable.
Wherein, the Young's modulus of described receiver thin film is 5000-5800N/mm2, density is 1.0-1.7g/cm3, glass turns
Changing temperature and be 120-150 DEG C, relative damping is 0.45-0.65, and percentage elongation is 250-560%, and hot strength is 3-8MPa, anti-tear
Resistance to spalling is 30-50 kN/m.
Beneficial effects of the present invention:
(1) present invention uses shellring shape structure, and arranges film frame and sound film at central mode, makes receiver thin film possess high-elastic
Property, high tenacity, preferable transient state, sensitivity, frequency response, lasting good tonequality.
(2) the preparation method good operability of the present invention, be suitable for batch production, can prepare microminiature, voice coil loudspeaker voice coil thickness up to
The thickness receiver thin film of 0.02-0.04mm.
(3) present invention uses liquid-state silicon gel as binding agent, and material is identical with engineering thin slice and surface ring, the sound to sound film
Matter impact is little, and compact conformation, transient state is good.
(4) liquid-state silicon gel waterproof and dustproof of the present invention, do not affect tonequality and penetrate.
(5) adapter ring of the present invention uses FPC, PEN, PEEK, PU or PET, strengthens product strength, makes sound film have very well
Transient state.
(6) small product size of the present invention is little, and sound film is thin, is assembled in product, has the biggest design space.
Accompanying drawing explanation
Utilize accompanying drawing that invention is described further, but the embodiment in accompanying drawing do not constitute any limitation of the invention,
For those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain it according to the following drawings
Its accompanying drawing.
Fig. 1 is the overall structure schematic diagram of a kind of receiver thin film of the present invention.
Fig. 2 is the structural representation of the engineering thin slice of a kind of receiver thin film of the present invention.
Fig. 3 is the part-structure schematic diagram of a kind of receiver thin film of the present invention.
Reference includes: 1 engineering thin slice, 2 adapter rings, 3 surface rings, 4 central modes, 5 film frames, 6 sound films.
Detailed description of the invention
With the following Examples and accompanying drawing the invention will be further described.
Embodiment 1
The preparation method of a kind of receiver thin film, comprises the following steps,
Step (A): middle former film and surface former film overlap, cutting, punching press are cut out little mantle of making, and mantle includes by middle former film
The middle boxes 2 groups formed, the surface frame 3 groups stamped out by the former film in surface；
Step (B): use fan gate to fill out former of engineering, less prepared engineering films group is cut out in punching press；
Step (C): middle boxes 2 groups, surface frame 3 groups and engineering films group are cleaned, the equal dusting of upper and lower surface that middle boxes is 2 groups,
Gluing, then at the upper surface coating surface frame 3 groups of middle boxes 2 groups, is finally fitted in engineering films group under middle boxes 2 groups
Surface, punching press sanction is little makes several receiver thin film；
Wherein, engineering films group includes that several engineering films, middle boxes 2 groups include several middle boxes 2,3 groups of bags of surface frame
Include several surface frames 3；
Wherein, dusting uses beryllium copper metal powder.
The temperature that fan gate described in step (B) is filled is 110 DEG C, and sealed pressure is 20bar, and sealed speed is 10s.
Cleaning described in step (C) to be specially uses silica gel abluent to be coated cleaning twice, and coating thickness is
0.2mm。
Dusting described in step (C) is specially and uses beryllium copper metal powder to spray on surface ring 3, and spraying temperature is
20-120 DEG C, coating thickness is 0.01-0.03mm.
Gluing described in step (C) uses silane adhesive, and the pressure of gluing is 50bar, and the hardness of silane adhesive is
40 degree.
The former film in described centre is PET.
The material of former of described engineering and the former film in surface is liquid-state silicon gel.
A kind of receiver thin film, this receiver thin film includes that engineering thin slice 1, middle boxes 2 and surface frame 3, described engineering thin slice 1 wrap
Include the central mode 4 being arranged at centre and the retainer ring being arranged at outside central mode 4, described retainer ring, middle boxes 2 and surface frame 3
Shape matches, and described middle boxes 2 is arranged at retainer ring upper surface, and described surface frame 3 is arranged at middle boxes 2 upper surface, described
Central mode 4 includes the film frame 5 being arranged at central mode 4 surrounding and the sound film 6 being arranged in film frame 5.
The Young's modulus of described receiver thin film is 5200N/mm2, density is 1.2g/cm3, glass transition temperature is 130 DEG C,
Relative damping is 0.45, and percentage elongation is 300%, and hot strength is 3.5MPa, and tearing toughness is 35 kN/m.
Embodiment 2
The present embodiment is with the difference of embodiment 1: the temperature that fan gate described in the step (B) of the present embodiment is filled
Being 120 DEG C, sealed pressure is 40bar, and sealed speed is 12s.Cleaning described in step (C) to be specially uses silica gel abluent to enter
Row coating cleaning twice, coating thickness is 0.5mm.Dusting described in step (C) is specially and uses beryllium copper metal powder at surface ring 3
On spray, spraying temperature is 80 DEG C, and coating thickness is 0.02mm.Gluing described in step (C) uses silane adhesive, on
The pressure of glue is 60bar, and the hardness of silane adhesive is 70 degree.
The former film in described centre is PEN:PEEK by mass fraction is 1:2 composition.
The Young's modulus of described receiver thin film is 5400N/mm2, density is 1.3g/cm3, glass transition temperature is 150 DEG C,
Relative damping is 0.48, and percentage elongation is 400%, and hot strength is 5MPa, and tearing toughness is 50 kN/m.
Embodiment 3
The present embodiment is with the difference of embodiment 1: the temperature that fan gate described in step (B) is filled is 110 DEG C, lock
Resultant pressure is 20bar, and sealed speed is 10s.Cleaning described in step (C) to be specially uses silica gel abluent to be coated cleaning
Twice, coating thickness is 0.2mm.Dusting described in step (C) is specially and uses beryllium copper metal powder to spray on surface ring 3
Being coated with, spraying temperature is 110 DEG C, and coating thickness is 0.03mm.Gluing described in step (C) uses silane adhesive, the pressure of gluing
Power is 60bar, and the hardness of silane adhesive is 70 degree.
The former film in described centre is PU:PET by mass fraction is 1:2 composition.
The Young's modulus of described receiver thin film is 5200N/mm2, density is 1.2g/cm3, glass transition temperature is 130 DEG C,
Relative damping is 0.45, and percentage elongation is 300%, and hot strength is 3.5MPa, and tearing toughness is 35 kN/m.
Embodiment 4
The present embodiment is with the difference of embodiment 1: the temperature that fan gate described in step (B) is filled is 130 DEG C, lock
Resultant pressure is 80bar, and sealed speed is 8s.Cleaning described in step (C) to be specially uses silica gel abluent to be coated cleaning
Twice, coating thickness is 0.5mm.Dusting described in step (C) is specially and uses beryllium copper metal powder to spray on surface ring 3
Being coated with, spraying temperature is 80 DEG C, and coating thickness is 0.01mm.Gluing described in step (C) uses silane adhesive, the pressure of gluing
For 80bar, the hardness of silane adhesive is 80 degree.
The former film in described centre is PEN:PU:PET by mass fraction is 1:1.2:2 composition.
The Young's modulus of described receiver thin film is: 5600N/mm2, density is 1.6g/cm3, glass transition temperature is 140 DEG C,
Relative damping is 0.55, and percentage elongation is 500%, and hot strength is 3.5MPa, and tearing toughness is 45 kN/m.
Embodiment 5
The present embodiment is with the difference of embodiment 1: the temperature that fan gate described in step (B) is filled is 130 DEG C, lock
Resultant pressure is 60bar, and sealed speed is 15s.Cleaning described in step (C) to be specially uses silica gel abluent to be coated cleaning
Twice, coating thickness is 0.5mm.Dusting described in step (C) is specially and uses beryllium copper metal powder to spray on surface ring 3
Being coated with, spraying temperature is 80 DEG C, and coating thickness is 0.:2mm.Gluing described in step (C) uses silane adhesive, the pressure of gluing
For 80bar, the hardness of silane adhesive is 80 degree.
The former film in described centre be PEEK:PEN:PU:PET by mass fraction: 0.5:1:1.2:2 form.
The Young's modulus of described receiver thin film is: 5800N/mm2, density is 1.6g/cm3, glass transition temperature is 140 DEG C,
Relative damping is 0.55, and percentage elongation is 550%, and hot strength is 3.5MPa, and tearing toughness is 50 kN/m.
Embodiment 6
The present embodiment is with the difference of embodiment 1: the temperature that fan gate described in step (B) is filled is 130 DEG C, lock
Resultant pressure is 50bar, and sealed speed is 12s.Cleaning described in step (C) to be specially uses silica gel abluent to be coated cleaning
Twice, coating thickness is 0.5mm.Dusting described in step (C) is specially and uses beryllium copper metal powder to spray on surface ring 3
Being coated with, spraying temperature is 120 DEG C, and coating thickness is 0.:2mm.Gluing described in step (C) uses silane adhesive, the pressure of gluing
Power is 80bar, and the hardness of silane adhesive is 80 degree.
The former film in described centre be PEEK:PET by mass fraction: 0.5:1.2 form.
The Young's modulus of described receiver thin film is: 5800N/mm2, density is 1.0g/cm3, glass transition temperature is 140 DEG C,
Relative damping is 0.55, and percentage elongation is 250%, and hot strength is 3.5MPa, and tearing toughness is 30 kN/m.
Embodiment 7
The present embodiment is with the difference of embodiment 1: the temperature that fan gate described in step (B) is filled is 130 DEG C, lock
Resultant pressure is 30bar, and sealed speed is 9s.Cleaning described in step (C) to be specially uses silica gel abluent to be coated cleaning
Twice, coating thickness is 0.3mm.Dusting described in step (C) is specially and uses beryllium copper metal powder to spray on surface ring 3
Being coated with, spraying temperature is 40 DEG C, and coating thickness is 0.02mm.Gluing described in step (C) uses silane adhesive, the pressure of gluing
For 30bar, the hardness of silane adhesive is 40 degree.
The former film in described centre be PEEK:PEN:PU:PET by mass fraction: 1.5:1:3.4:2 form.
The Young's modulus of described receiver thin film is: 5000N/mm2, density is 1.6g/cm3, glass transition temperature is 140 DEG C,
Relative damping is 0.65, and percentage elongation is 300%, and hot strength is 3.5MPa, and tearing toughness is 35kN/m.
Embodiment 8
The present embodiment is with the difference of embodiment 1: the temperature that fan gate described in step (B) is filled is 110 DEG C, lock
Resultant pressure is 20bar, and sealed speed is 8s.Cleaning described in step (C) to be specially uses silica gel abluent to be coated cleaning
Twice, coating thickness is 0.2mm.Dusting described in step (C) is specially and uses beryllium copper metal powder to spray on surface ring 3
Being coated with, spraying temperature is 20 DEG C, and coating thickness is 0.03mm.Gluing described in step (C) uses silane adhesive, the pressure of gluing
For 30bar, the hardness of silane adhesive is 40 degree.
The former film in described centre is PET.
The Young's modulus of described receiver thin film is: 5500N/mm2, density is 1.1g/cm3, glass transition temperature is 120 DEG C,
Relative damping is 0.45, and percentage elongation is 250%, and hot strength is 4MPa, and tearing toughness is 30 kN/m.
Last it should be noted that, above example is only in order to illustrate technical scheme, rather than the present invention is protected
Protecting the restriction of scope, although having made to explain to the present invention with reference to preferred embodiment, those of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (9)
1. the preparation method of a receiver thin film, it is characterised in that: comprise the following steps
Step (A): middle former film and surface former film overlap, cutting, punching press are cut out little mantle of making, and mantle includes by middle former film
The middle boxes group formed, the surface frame group stamped out by the former film in surface；
Step (B): use fan gate to fill out former of engineering, less prepared engineering films group is cut out in punching press；
Step (C): middle boxes group, surface frame group and engineering films group are cleaned, the equal dusting of upper and lower surface of middle boxes group, on
Glue, then in the upper surface coating surface frame group of middle boxes group, is finally fitted in the lower surface of middle boxes group by engineering films group,
Punching press sanction is little makes several receiver thin film；
Wherein, engineering films group includes that several engineering films, middle boxes group include several middle boxes, if surface frame group includes
Dry surface frame；
Wherein, dusting uses beryllium copper metal powder.
The preparation method of a kind of receiver thin film the most according to claim 1, it is characterised in that: fan-shaped described in step (B)
The temperature that cast gate is filled is 110-130 DEG C, and sealed pressure is 20-80bar, and sealed speed is 8-15s.
The preparation method of a kind of receiver thin film the most according to claim 1, it is characterised in that: clean described in step (C)
Being specially and use silica gel abluent to be coated cleaning twice, coating thickness is 0.2-0.5mm.
The preparation method of a kind of receiver thin film the most according to claim 1, it is characterised in that: dusting described in step (C)
Being specially and use beryllium copper metal powder to spray on the ring of surface, spraying temperature is 20-120 DEG C, and coating thickness is 0.01-
0.03mm。
The preparation method of a kind of receiver thin film the most according to claim 1, it is characterised in that: gluing described in step (C)
Using silane adhesive, the pressure of gluing is 30-80bar, and the hardness of silane adhesive is 40-80 degree.
The preparation method of a kind of receiver thin film the most according to claim 1, it is characterised in that: the former film in described centre be FPC,
The mixture of the one or more than one in PEN, PEEK, PU, PET.
The preparation method of a kind of receiver thin film the most according to claim 1, it is characterised in that: former of described engineering and surface
The material of former film is liquid-state silicon gel.
8. a receiver thin film, it is characterised in that: this receiver thin film includes engineering thin slice, middle boxes and surface frame, described engineering
Thin slice includes the central mode being arranged at centre and the retainer ring being arranged at outside central mode, described retainer ring, middle boxes and surface frame
Shape match, described middle boxes is arranged at retainer ring upper surface, and described surface frame is arranged at middle boxes upper surface.
A kind of receiver thin film the most according to claim 8, it is characterised in that: the Young's modulus of described receiver thin film is
5000-5800N/mm2, density is 1.0-1.7g/cm3, glass transition temperature is 120-150 DEG C, and relative damping is 0.45-0.65,
Percentage elongation is 250-560%, and hot strength is 3-8MPa, and tearing toughness is 30-50 kN/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604096.1A CN106028229B (en) | 2016-07-28 | 2016-07-28 | Preparation method of earphone film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106792419A (en) * | 2016-12-22 | 2017-05-31 | 深圳倍声声学技术有限公司 | A kind of vibrating diaphragm assembles device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400627A (en) * | 2001-07-30 | 2003-03-05 | 旭硝子株式会社 | Film |
| CN101207944A (en) * | 2006-12-18 | 2008-06-25 | 深圳市豪恩电声科技有限公司 | Method for manufacturing microphone diaphragm |
| CN101382730A (en) * | 2007-09-05 | 2009-03-11 | 信越化学工业株式会社 | Pellicle frame |
| CN103365074A (en) * | 2012-04-04 | 2013-10-23 | 信越化学工业株式会社 | A dustproof thin film assembly frame and a dustproof thin film assembly |
| KR20150073622A (en) * | 2013-12-23 | 2015-07-01 | (주)창성 | A composite film using conductive adhesion layers, having improved heat sink capabilities with graphite layer and method of fabricating the same. |
-
2016
- 2016-07-28 CN CN201610604096.1A patent/CN106028229B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400627A (en) * | 2001-07-30 | 2003-03-05 | 旭硝子株式会社 | Film |
| CN101207944A (en) * | 2006-12-18 | 2008-06-25 | 深圳市豪恩电声科技有限公司 | Method for manufacturing microphone diaphragm |
| CN101382730A (en) * | 2007-09-05 | 2009-03-11 | 信越化学工业株式会社 | Pellicle frame |
| CN103365074A (en) * | 2012-04-04 | 2013-10-23 | 信越化学工业株式会社 | A dustproof thin film assembly frame and a dustproof thin film assembly |
| KR20150073622A (en) * | 2013-12-23 | 2015-07-01 | (주)창성 | A composite film using conductive adhesion layers, having improved heat sink capabilities with graphite layer and method of fabricating the same. |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106792419A (en) * | 2016-12-22 | 2017-05-31 | 深圳倍声声学技术有限公司 | A kind of vibrating diaphragm assembles device |
| CN106792419B (en) * | 2016-12-22 | 2020-08-04 | 深圳倍声声学技术有限公司 | Vibrating diaphragm assembling device |
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| CN106028229B (en) | 2021-06-22 |
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