CN107501590A - The method that the diaphragm of loudspeaker is prepared using radiation modification - Google Patents

The method that the diaphragm of loudspeaker is prepared using radiation modification Download PDF

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Publication number
CN107501590A
CN107501590A CN201710827570.1A CN201710827570A CN107501590A CN 107501590 A CN107501590 A CN 107501590A CN 201710827570 A CN201710827570 A CN 201710827570A CN 107501590 A CN107501590 A CN 107501590A
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Prior art keywords
vibrating diaphragm
diaphragm
raw material
loudspeaker
embryo
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CN201710827570.1A
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CN107501590B (en
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黄建伟
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TAIXING YANGSHENG ELECTRONIC Co.,Ltd.
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黄建伟
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/12—Chemical modification
    • C08J7/123—Treatment by wave energy or particle radiation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE

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  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

The present invention provides a kind of method that the diaphragm of loudspeaker is prepared using radiation modification, comprises the following steps：S1. preparing raw material；S2. raw material is put into shaper, progress is hot-forming, while carries out foam process processing, and the thick embryo of vibrating diaphragm is made；S3. after the thick embryo pressure release cooling of vibrating diaphragm, the thick embryo of vibrating diaphragm is cut by laser according to required shape and size, vibrating diaphragm essence embryo is made；S4. radiation modification is carried out to vibrating diaphragm essence embryo.

Description

The method that the diaphragm of loudspeaker is prepared using radiation modification
Technical field
The present invention relates to the preparation method of the diaphragm of loudspeaker, is shaken in particular to loudspeaker is prepared using radiation modification The method of film.
Background technology
The diaphragm of loudspeaker needs to have appropriate mechanical performance, makes it under conditions of in light weight, thickness of thin is met in work It is not easy to tear during work, while can also produces outstanding tonequality.The performance of the diaphragm of loudspeaker depends primarily on the shape of vibrating diaphragm Shape and material.In the prior art, macromolecule polymer material has been widely used as diaphragm materials.But according to prior art profit The vibrating diaphragm prepared with macromolecule polymer material is often difficult to intended effect.Meanwhile prior art does not account for yet Influence of the environmental factors such as illumination, temperature to the performance of the diaphragm of loudspeaker.
Radiation modification technology refers to penetrate high energy caused by electron ray caused by electron accelerator or radio isotope Line irradiation is illuminated material, and by controlling radiation parameter, the chemical composition and physical property that make to be illuminated material change simultaneously A kind of desirable new material can be become, or reaches desirable performance.Pass through radiation modification, Ke Yizeng Heat endurance, anti-flammability, the chemical stability of strong material, moreover it is possible to the intensity and stress tolerance of reinforcing material.Radiation modification skill Art has the advantages that technique is simple, high in machining efficiency, non-environmental-pollution, therefore is just being obtained more and more in material processing field Using.But in the preparation field of the diaphragm of loudspeaker, it there is no using radiation modification technology to prepare the loudspeaker with expected performance Vibrating diaphragm.
The content of the invention
The defects of for prior art, the present invention is intended to provide a kind of side that the diaphragm of loudspeaker is prepared using radiation modification Method.
It is as follows for the goal of the invention of the realization present invention, technical scheme：
S1. preparing raw material；
S2. raw material is put into shaper, progress is hot-forming, while carries out foam process processing, and it is thick that vibrating diaphragm is made Embryo；
S3. after the thick embryo pressure release cooling of vibrating diaphragm, the thick embryo of vibrating diaphragm is cut by laser according to required shape and size, is made Vibrating diaphragm essence embryo；
S4. radiation modification is carried out to vibrating diaphragm essence embryo.
Furthermore, it is understood that according to following ratio preparing raw material：
Acrylic resin 60-70%, density 0.9-0.92g/cm3Polyvinyl resin 25-30%, ethylene-propylene-two Olefinic rubber 5%~7%, a diameter of 25-50nm silica gel particle 3-5%.
Furthermore, it is understood that during preparing raw material, raw material is put into mixer and is well mixed.
Furthermore, it is understood that when carrying out hot-forming, mould is heated to 120-160 DEG C.
Furthermore, it is understood that when carrying out foam process processing, the indifferent gas that air pressure is 10-12Mpa is filled with into shaper Body.
Furthermore, it is understood that when carrying out radiation modification, C is utilized0 60Or electron accelerator irradiates to it, irradiation dose is 5-200KGy, composite polyolefine material is set to crosslink or graft reaction.
The present invention applies radiation modification technology in the preparation process of the diaphragm of loudspeaker, thus, it is possible to prepare stability By force, intensity is high, has the diaphragm of loudspeaker of suitable stiff, utilizes such diaphragm of loudspeaker, it is possible to produce tonequality is outstanding, knot Light and handy, the reliable and stable loudspeaker of structure.
The detailed description of embodiment by referring to the following drawings and to the present invention, feature and advantage of the invention It will be made apparent from.
Brief description of the drawings
Fig. 1 a- Fig. 1 b show the structure chart of loudspeaker and the diaphragm of loudspeaker；
Fig. 2 shows the flow chart of the diaphragm of loudspeaker preparation method according to the present invention.
Fig. 3 is shown according to the performance test curve of vibrating diaphragm and existing vibrating diaphragm made of the preparation method of the present invention.
Embodiment
Embodiments of the present invention provide a kind of method that the diaphragm of loudspeaker is prepared using radiation modification, utilize the preparation Method, the diaphragm of loudspeaker that stability is strong, intensity is high, has suitable stiff can be prepared.
Technical scheme is described in detail below in conjunction with the accompanying drawings.
Fig. 1 a- Fig. 1 b show the structure chart of loudspeaker and the diaphragm of loudspeaker.
As shown in Figure 1a, loudspeaker includes ring 1, vibrating diaphragm 2, frame 3, damping ring 4, dust cover 5, voice coil loudspeaker voice coil 6 and magnetic circuit 7. The structure of the loudspeaker is disclosed in the prior art, will not be repeated here.
Fig. 1 b show the top view of the diaphragm of loudspeaker, wherein, ring and vibrating diaphragm are integrally formed with identical material.According to The present invention, the diaphragm of loudspeaker are made up of macromolecule polymer material, and are made up of the diaphragm of loudspeaker preparation method of the present invention.
Fig. 2 shows the flow chart of the diaphragm of loudspeaker preparation method according to the present invention.
S1. preparing raw material.According to following ratio preparing raw material：Acrylic resin 60-70%, density 0.9-0.92g/ cm3Polyvinyl resin 25-30%, ethylene/propylene/diene rubber 5%~7%, a diameter of 25-50nm silica gel particle 3- 5%, raw material is put into mixer and is well mixed.
S2. raw material is put into shaper, mould is heated to 120-160 DEG C, carry out it is hot-forming, while to sizing The inert gas that air pressure is 10-12Mpa is filled with mould, carries out foam process processing, the thick embryo of vibrating diaphragm is made.
S3. after the thick embryo pressure release cooling of vibrating diaphragm, the thick embryo of vibrating diaphragm is cut by laser according to required shape and size, is made Vibrating diaphragm essence embryo.
S4. radiation modification is carried out to vibrating diaphragm essence embryo.Specifically, C is utilized0 60Or electron accelerator irradiates to it, spoke It is 5-200KGy according to dosage, composite polyolefine material is crosslinked or graft reaction.
There is outstanding mechanical performance by the diaphragm of loudspeaker made of the diaphragm of loudspeaker preparation method of the present invention, utilize Mechanics machine tests its mechanical property, and test result is as follows：
Project Performance
Tensile strength 27-28.3Mpa
Elongation at break 51-83%
Hardness 58.5-61.5
Bending strength 37.9-38.1Mpa
Impact strength 72-81KJ/m2
Density 0.93387-0.93485
Outstanding tonequality can also be produced by the diaphragm of loudspeaker made of the diaphragm of loudspeaker preparation method of the present invention.Fig. 3 Show according to the performance test curve of vibrating diaphragm and existing vibrating diaphragm made of the preparation method of the present invention.Thick line is according to this in figure The performance test curve of vibrating diaphragm made of the preparation method of invention, fine rule is the performance test curve of existing vibrating diaphragm in figure.From figure In it is visible, according to vibrating diaphragm made of the preparation method of the present invention, low frequency (200-500Hz) section sound press is high, intermediate frequency (500- It is 7KHz) flatter, relatively bright in high frequency (7K-20KHz).
In summary, the invention provides a kind of method that the diaphragm of loudspeaker is prepared using radiation modification, using according to this Vibrating diaphragm made of the preparation method of invention, small volume is in light weight, and intensity is high, and stability is high, and acoustic sensitivity is high, and tone color is more Well, undistorted phenomenon, sound stereovision are stronger.
Described above be only it is illustrative, and it is to be understood that it is described herein arrangement and details modification and Change will be apparent to those skilled in the art, any on the premise of the inventive concept without departing from the present invention Obviously replace within the scope of the present invention.It is therefore intended that only by scope of the following claims rather than by The specific detail that is presented limits by way of above description and explaining.

Claims (6)

1. a kind of method that the diaphragm of loudspeaker is prepared using radiation modification, is comprised the following steps：
S1. preparing raw material；
S2. raw material is put into shaper, progress is hot-forming, while carries out foam process processing, and the thick embryo of vibrating diaphragm is made；
S3. after the thick embryo pressure release cooling of vibrating diaphragm, the thick embryo of vibrating diaphragm is cut by laser according to required shape and size, vibrating diaphragm is made Smart embryo；
S4. radiation modification is carried out to vibrating diaphragm essence embryo.
2. the method according to claim 11, wherein, according to following ratio preparing raw material：
Acrylic resin 60-70%, density 0.9-0.92g/cm3Polyvinyl resin 25-30%, ethylene/propylene/diene Rubber 5%~7%, a diameter of 25-50nm silica gel particle 3-5%.
3. according to the method for claim 2, wherein, during preparing raw material, raw material is put into mixer and is well mixed.
4. according to the method for claim 1, wherein, when carrying out hot-forming, mould is heated to 120-160 DEG C.
5. according to the method for claim 1, wherein, when carrying out foam process processing, into shaper being filled with air pressure is 10-12Mpa inert gas.
6. according to the method for claim 1, wherein, when carrying out radiation modification, utilize C0 60Or electron accelerator is carried out to it Irradiation, irradiation dose 5-200KGy, composite polyolefine material is set to crosslink or graft reaction.
CN201710827570.1A 2017-09-14 2017-09-14 Method for preparing loudspeaker diaphragm by irradiation modification Active CN107501590B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110003552A (en) * 2019-03-30 2019-07-12 朝阳聚声泰（信丰）科技有限公司 A kind of sheet material and its processing technology of plastic speaker sound basin
CN114536823A (en) * 2020-11-24 2022-05-27 魏灵炯 Production process of loudspeaker diaphragm

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048696A (en) * 1983-08-26 1985-03-16 Onkyo Corp Manufacture of diaphragm for speaker
KR20090024521A (en) * 2007-09-04 2009-03-09 한국원자력연구원 A polymer vibration plate of micro or thin film speaker and its manufacture method by ion beam irradiation
CN102295805A (en) * 2011-07-07 2011-12-28 吉林省神韵电子科技开发股份有限公司 Loudspeaker diaphragm made from polypropylene blend
CN102333269A (en) * 2011-07-07 2012-01-25 吉林省神韵电子科技开发股份有限公司 Loudspeaker diaphragm made of low density polyethylene nano-composite
CN102387452A (en) * 2010-08-30 2012-03-21 台湾驻极体电子股份有限公司 Electrostatic loudspeaker and production method thereof and conductive back board of electrostatic loudspeaker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048696A (en) * 1983-08-26 1985-03-16 Onkyo Corp Manufacture of diaphragm for speaker
KR20090024521A (en) * 2007-09-04 2009-03-09 한국원자력연구원 A polymer vibration plate of micro or thin film speaker and its manufacture method by ion beam irradiation
CN102387452A (en) * 2010-08-30 2012-03-21 台湾驻极体电子股份有限公司 Electrostatic loudspeaker and production method thereof and conductive back board of electrostatic loudspeaker
CN102295805A (en) * 2011-07-07 2011-12-28 吉林省神韵电子科技开发股份有限公司 Loudspeaker diaphragm made from polypropylene blend
CN102333269A (en) * 2011-07-07 2012-01-25 吉林省神韵电子科技开发股份有限公司 Loudspeaker diaphragm made of low density polyethylene nano-composite

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110003552A (en) * 2019-03-30 2019-07-12 朝阳聚声泰（信丰）科技有限公司 A kind of sheet material and its processing technology of plastic speaker sound basin
CN114536823A (en) * 2020-11-24 2022-05-27 魏灵炯 Production process of loudspeaker diaphragm

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