CN108485305A - Voice coil motor case, material prescription and preparation method thereof - Google Patents
Voice coil motor case, material prescription and preparation method thereof Download PDFInfo
- Publication number
- CN108485305A CN108485305A CN201810218255.3A CN201810218255A CN108485305A CN 108485305 A CN108485305 A CN 108485305A CN 201810218255 A CN201810218255 A CN 201810218255A CN 108485305 A CN108485305 A CN 108485305A
- Authority
- CN
- China
- Prior art keywords
- weight
- parts
- voice coil
- coil motor
- motor case
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2275—Ferroso-ferric oxide (Fe3O4)
-
- 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
- C08K2201/01—Magnetic additives
Abstract
The invention discloses a kind of voice coil motor case, it is composed of plastic shell and the magnet pulvis mine fibre being blended in plastic shell.The material prescription for preparing the voice coil motor case includes 40 50 parts by weight of liquid crystal polymer, 35 40 parts by weight of magnetic iron powder, mine 10 15 parts by weight of fibre, 0.5 1.5 parts by weight of toughener, 0.1 0.5 parts by weight of heat stabilizer, 0.1 1.5 parts by weight of antioxidant.The present invention mainly uses magnetic iron powder and mine fibre to be mixed with liquid crystal polymer and carries out injection molding, the voice coil motor case prepared by way of injection molding has good dimensional stability, good magnet adsorption, excellent heat resistance and good appearance, and product can be produced in batches.
Description
Technical field
The present invention relates to a kind of electronic apparatus shell, a kind of shell of voice coil motor, material prescription and its system are particularly related to
Preparation Method.
Background technology
Voice coil motor VCM has the characteristics that high frequency sound, high-precision.Its cardinal principle is passed through in a permanent-magnetic field
The DC current for changing motor interior loop moves up and down to control the stretch position of spring leaf to which camera lens drives, realization pair
It is burnt.Mobile phone camera widely uses VCM to realize automatic focusing function, and the position of camera lens can be adjusted by VCM, and it is clear to present
Image.
The shell of voice coil motor needs to have magnetic conduction effect, and therefore, existing voice coil motor case is passed through with iron plate
Mold forging forming is beaten again after coming out, and in addition to processing precise degree is bad, forging process, mold is also easily damaged.
In view of this, the designer, which is directed to not attain in the manufacture of above-mentioned voice coil motor case, improves caused many missings
And it is inconvenient, and deeply conceive, and actively research improvement has a fling at and develops and design the present invention.
Invention content
The purpose of the present invention is to provide one kind convenient for manufacture, and be hardly damaged the voice coil motor case of mold, material is matched
Side and preparation method thereof.
In order to achieve the above objectives, solution of the invention is：
A kind of voice coil motor case is composed of plastic shell and magnetic iron powder and the mine fibre being blended in plastic shell.
The invention also includes following technical solutions：
A kind of material prescription of voice coil motor case as described above comprising liquid crystal polymer（LCP）40-50 parts by weight, magnet
Powder 35-40 parts by weight, mine fibre 10-15 parts by weight, toughener 0.5-1.5 parts by weight, heat stabilizer 0.1-0.5 parts by weight, antioxygen
Agent 0.1-1.5 parts by weight.
Further, the metal grain size of the magnetic iron powder and mine fibre is less than 5 microns.
Further, the summation accounting of the magnetic iron powder and mine fibre is the 50% of raw material.
Preferably, the liquid crystal polymer is 48 parts by weight, magnetic iron powder is 40 parts by weight, and mine fibre is 10 parts by weight, toughening
Agent is 1 parts by weight, and heat stabilizer is 0.5 parts by weight, and antioxidant is 0.5 parts by weight.
Further, above-mentioned antioxidant is antioxidant 1010.
Preferably, the liquid crystal polymer is 48 parts by weight, magnetic iron powder is 35 parts by weight, and mine fibre is 15 parts by weight, toughening
Agent is 0.5 parts by weight, and heat stabilizer is 0.5 parts by weight, and antioxidant is 1 parts by weight.
Above-mentioned antioxidant is antioxidant 1010 and irgasfos 168 with 1:1 mixes.
The invention also includes following technical schemes：
A method of the voice coil motor case is prepared, is included the following steps：
Step 1：It is dried 6 hours at a temperature of the material mixed in advance is placed in 150 DEG C, to remove moisture removal and influence product quality
Impurity；
Step 2：Mixing material after drying is added in the injection screw of injection molding machine, melting is heated at 320 DEG C；
Step 3：It is mixing material in 130 DEG C of molds the mixing material implantation temperature of step 2 by the screw extruding of injection molding machine
The injection pressure of material be 1700kgf/c, then so that gained injection-moulded plastic part natural cooling, mold mold pickup up to product outside
Shell.
After adopting the above scheme, the shell of voice coil motor of the present invention mainly uses magnetic iron powder and mine fibre mixed with liquid crystal polymer
It closes and carries out injection molding, the voice coil motor case prepared by way of injection molding has good dimensional stability,
Good magnet adsorption, excellent heat resistance and good appearance, and product can be produced in batches, due in plastic shell
The cored powder of interior mixing and, therefore voice coil motor case after molding can solve plastic shell and not have lacking for magnetic conduction function
It falls into, also solves the problem that mold easily damage leads to the defect that the production cost increases.
Specific implementation mode
In order to further explain the technical solution of the present invention, being explained in detail the present invention below by specific embodiment
It states.
Present invention is disclosed a kind of voice coil motor case, by plastic shell and the magnetic iron powder being blended in plastic shell and
Mine fibre is composed.
Form the material prescription of the voice coil motor case, including liquid crystal polymer（LCP）40-50 parts by weight, magnetic iron powder 35-
40 parts by weight, mine fibre 10-15 parts by weight, toughener 0.5-1.5 parts by weight, heat stabilizer 0.1-0.5 parts by weight, antioxidant 0.1-
1.5 parts by weight.
Wherein, the metal grain size of the magnetic iron powder and mine fibre is less than 5 microns.The summation accounting of the magnetic iron powder and mine fibre is
The 50% of raw material.
The main component of the present invention is that magnetic iron powder and mine fibre are mixed with liquid crystal polymer, and add toughener, antioxygen
Agent, heat stabilizer, have good dimensional stability, good magnet adsorption, excellent heat resistance and good appearance,
Each constituent is innocuous substance.
The component for being exemplified below two different proportions prepares the embodiment of voice coil motor case：
Embodiment one
Liquid crystal polymer is 48 parts by weight, and magnetic iron powder is 40 parts by weight, and mine fibre is 10 parts by weight, and toughener is 1 parts by weight, and heat is steady
It is 0.5 parts by weight to determine agent, and antioxidant is 0.5 parts by weight, wherein antioxidant is antioxidant 1010.
Preparation method：
Step 1：It is dried 6 hours at a temperature of the above-mentioned material mixed in advance is placed in 150 DEG C, to remove moisture removal and influence product
The impurity of quality；
Step 2：Mixing material after drying is added in the injection screw of injection molding machine, melting is heated at 320 DEG C；
Step 3：It is mixing material in 130 DEG C of molds the mixing material implantation temperature of step 2 by the screw extruding of injection molding machine
The injection pressure of material be 1700kgf/c, then so that gained injection-moulded plastic part natural cooling, mold mold pickup up to product outside
Shell.
Embodiment two
Liquid crystal polymer is 48 parts by weight, and magnetic iron powder is 35 parts by weight, and mine fibre is 15 parts by weight, and toughener is 0.5 parts by weight, heat
Stabilizer is 0.5 parts by weight, and antioxidant is 1 parts by weight, wherein above-mentioned antioxidant is antioxidant 1010 and irgasfos 168 with 1:1
It mixes.
Preparation method：
Step 1：It is dried 6 hours at a temperature of the above-mentioned material mixed in advance is placed in 150 DEG C, to remove moisture removal and influence product
The impurity of quality；
Step 2：Mixing material after drying is added in the injection screw of injection molding machine, melting is heated at 320 DEG C；
Step 3：It is mixing material in 130 DEG C of molds the mixing material implantation temperature of step 2 by the screw extruding of injection molding machine
The injection pressure of material be 1700kgf/c, then so that gained injection-moulded plastic part natural cooling, mold mold pickup up to product outside
Shell.
The shell of voice coil motor of the present invention mainly uses magnetic iron powder and mine fibre to be mixed with liquid crystal polymer and carries out injection molding,
The voice coil motor case prepared by way of injection molding has good dimensional stability, good magnet adsorption
Property, excellent heat resistance and good appearance, and product can be produced in batches, due to mixing cored powder in plastic shell
And therefore voice coil motor case after molding can solve the defect that plastic shell does not have magnetic conduction function, also solve the problem that mold
Easily damage leads to the defect that the production cost increases.
Above-described embodiment and and the non-limiting present invention product form and style, the ordinary skill of any technical field
The appropriate changes or modifications that personnel do it all should be regarded as the patent category for not departing from the present invention.
Claims (9)
1. a kind of voice coil motor case, it is characterised in that：The voice coil motor case is by plastic shell and is blended in plastic shell
Magnet pulvis mine fibre be composed.
2. a kind of material prescription preparing voice coil motor case as described in claim 1, which is characterized in that including：Liquid crystal is poly-
Close object 40-50 parts by weight, magnetic iron powder 35-40 parts by weight, mine fibre 10-15 parts by weight, toughener 0.5-1.5 parts by weight, thermostabilization
Agent 0.1-0.5 parts by weight, antioxidant 0.1-1.5 parts by weight.
3. preparing the material prescription of voice coil motor case as claimed in claim 2, it is characterised in that：The magnetic iron powder and mine are fine
Metal grain size be less than 5 microns.
4. preparing the material prescription of voice coil motor case as claimed in claim 2, it is characterised in that：The magnetic iron powder and mine are fine
Summation accounting be raw material 50%.
5. preparing the material prescription of voice coil motor case as claimed in claim 2, it is characterised in that：The liquid crystal polymer is
48 parts by weight, magnetic iron powder are 40 parts by weight, and mine fibre is 10 parts by weight, and toughener is 1 parts by weight, and heat stabilizer is 0.5 parts by weight,
Antioxidant is 0.5 parts by weight.
6. preparing the material prescription of voice coil motor case as claimed in claim 5, it is characterised in that：Above-mentioned antioxidant is antioxygen
Agent 1010.
7. preparing the material prescription of voice coil motor case as claimed in claim 2, it is characterised in that：The liquid crystal polymer is
48 parts by weight, magnetic iron powder are 35 parts by weight, and mine fibre is 15 parts by weight, and toughener is 0.5 parts by weight, and heat stabilizer is 0.5 weight
Part, antioxidant is 1 parts by weight.
8. preparing the material prescription of voice coil motor case as claimed in claim 7, it is characterised in that：Antioxidant is antioxidant
1010 with irgasfos 168 with 1:1 mixes.
9. a kind of method preparing voice coil motor case, includes the following steps：
Step 1：Material in the material prescription of preparation voice coil motor case described in any one of claim 2 to 8 is carried
Before mix, dried 6 hours at a temperature of being placed in 150 DEG C, with go moisture removal and influence product quality impurity；
Step 2：Mixing material after drying is added in the injection screw of injection molding machine, melting is heated at 320 DEG C；
Step 3：It is mixing material in 130 DEG C of molds the mixing material implantation temperature of step 2 by the screw extruding of injection molding machine
The injection pressure of material be 1700kgf/c, then so that gained injection-moulded plastic part natural cooling, mold mold pickup up to product outside
Shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810218255.3A CN108485305A (en) | 2018-03-16 | 2018-03-16 | Voice coil motor case, material prescription and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810218255.3A CN108485305A (en) | 2018-03-16 | 2018-03-16 | Voice coil motor case, material prescription and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108485305A true CN108485305A (en) | 2018-09-04 |
Family
ID=63339571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810218255.3A Withdrawn CN108485305A (en) | 2018-03-16 | 2018-03-16 | Voice coil motor case, material prescription and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108485305A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2204403A1 (en) * | 2008-12-30 | 2010-07-07 | Cheil Industries Inc. | Resin composition |
| CN104046025A (en) * | 2013-03-15 | 2014-09-17 | 第一毛织株式会社 | Thermoplastic Resine Composition Having Excellent Emi Shielding Property |
| CN107325548A (en) * | 2016-03-23 | 2017-11-07 | Ems 专利股份公司 | Heat resistant polyamide molding compounds and its purposes especially in automobile industry |
-
2018
- 2018-03-16 CN CN201810218255.3A patent/CN108485305A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2204403A1 (en) * | 2008-12-30 | 2010-07-07 | Cheil Industries Inc. | Resin composition |
| CN104046025A (en) * | 2013-03-15 | 2014-09-17 | 第一毛织株式会社 | Thermoplastic Resine Composition Having Excellent Emi Shielding Property |
| CN107325548A (en) * | 2016-03-23 | 2017-11-07 | Ems 专利股份公司 | Heat resistant polyamide molding compounds and its purposes especially in automobile industry |
Non-Patent Citations (3)
| Title |
|---|
| 李树燕: "《电工基础》", 31 March 1985, 西安电子科技大学出版社 * |
| 田福庆，等: "《舰载激光武器跟踪与瞄准控制》", 30 April 2015, 国防工业出版社 * |
| 衷平海: "《实用塑料制品生产技术及应用配方》", 31 May 2005, 江西科学技术出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101783219B (en) | Flexible bonding rare-earth permanent magnet and manufacturing method thereof | |
| CN101256898B (en) | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body | |
| CN106349686B (en) | A kind of high-performance polyamide/samarium iron nitrogen magnetic composite and preparation method thereof | |
| CN108856701B (en) | Stainless steel base feed and preparation method thereof, stainless steel base blank and preparation method thereof | |
| CN108485305A (en) | Voice coil motor case, material prescription and preparation method thereof | |
| CN108249907A (en) | A kind of ferrite material preparation method for material | |
| CN111370198B (en) | Injection-molded soft magnetic ferrite magnet and preparation method thereof | |
| JP2020205455A (en) | Method of producing bonded magnet and compound for bonded magnet | |
| CN110423468A (en) | A kind of neodymium iron boron PPS modeling magnetic material of high fluidity high magnetic characteristics and preparation method thereof | |
| CN107841125B (en) | Preparation method of high-performance noise suppression sheet | |
| CN108164923A (en) | A kind of fiberglass reinforced PEEK/PES composite materials | |
| CN112341180A (en) | Preparation method of ferrite material for mobile OLED display power supply | |
| CN110473703A (en) | A kind of high HkThe preparation method of SmCo agglomeration permanent magnetic material | |
| CN108070205A (en) | A kind of PEEK/PES composite materials | |
| CN106684339A (en) | Solidifying and drying process for continuous casting continuous rolling positive electrode plate | |
| CN111696740B (en) | Method for improving hygroscopicity of magnetic composite material | |
| CN104609845B (en) | It is a kind of to be molded with the preparation method for bonding magnetic | |
| US20200010626A1 (en) | Method and Composition for Preparing Polyamide Powders | |
| CN106992345A (en) | Cavity body filter | |
| CN207782895U (en) | Cellphone support | |
| TWI636869B (en) | Method of fabricating plastic-magnetic composite material | |
| CN104952579B (en) | A kind of pole anisotropy injection neodymium iron boron and preparation method thereof | |
| KR20130126769A (en) | Thermosetting resin and its manufacturing method for prepreg | |
| CN110070985A (en) | The manufacturing method of bonded permanent magnet and bonded permanent magnet mixture | |
| CN104117677B (en) | Manufacturing method of metal fan wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180904 |