CN110328804A - A kind of Shooting Technique of Bluetooth audio device shell - Google Patents
A kind of Shooting Technique of Bluetooth audio device shell Download PDFInfo
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- CN110328804A CN110328804A CN201910608447.XA CN201910608447A CN110328804A CN 110328804 A CN110328804 A CN 110328804A CN 201910608447 A CN201910608447 A CN 201910608447A CN 110328804 A CN110328804 A CN 110328804A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- 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
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C2045/0096—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor drying the moulding material before injection, e.g. by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3481—Housings or casings incorporating or embedding electric or electronic elements
-
- 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
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- 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
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
-
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to Bluetooth audio device technical fields, and in particular to a kind of Shooting Technique of Bluetooth audio device shell.The shell Shooting Technique is the following steps are included: mold design；Modified plastics is granulated, and is uniformly mixed 90~95 parts of synthetic resin, 3~5 parts of antiagers, 2~3 parts of antioxidants, 4~7 parts of fire retardants, 3~5 parts of toughener and 1~2 part of stabilizer by mass fraction；Plastic particles are dry；Injection molding preheats injection-moulding device and mold, setup parameter, and plastic master batch is sent into injection-moulding device and is molded, and injection molding includes injection, pressure maintaining and cooling；Demoulding sizing；At polishing and table；Promotor is sprayed, double of finished shell carries out ungrease treatment using degreasing agent, sprays nylon promotor on surface, dries up surface；Product test process flow.The present invention not only solves the problems, such as that existing Bluetooth audio device case surface spraying attachment is hypodynamic, and can improve ageing-resistant performance, impact resistance and the flame retardant property of shell.
Description
Technical field
The present invention relates to Bluetooth audio device technical fields, and in particular to a kind of Shooting Technique of Bluetooth audio device shell.
Background technique
With the development of science and technology, Bluetooth audio device is increasingly liked by consumer because of its portable, beautiful feature.It is logical
Cross the bluetooth module built in Bluetooth audio device, the stereo set of traditional device wire rod connection replaced with bluetooth connection, by with mobile phone, flat
Plate is connected with communication of mobile terminal such as notebooks, reaches conveniently purpose.The shell of Bluetooth audio device is all using note at present
Modeling mode is process.Injected plastics material generally uses resin material.The heat dissipation performance of resin enclosure, ageing-resistant performance, anti-impact
It is often poor to hit ability, flame retardant property is also insufficient.And outer surface spray is directly carried out after injection casing molding in prior art
Paint, occurs the problem of substrate adhesion difference often, shell finished product is caused to be easy paint.Therefore consumer is unable to satisfy to bluetooth sound
Ring the demand of shell.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of Shooting Techniques of reasonable Bluetooth audio device shell, not only
It solves the problems, such as that existing Bluetooth audio device case surface spraying attachment is hypodynamic, and the ageing-resistant performance of shell can be improved, resisted
Impact capacity and flame retardant property.
The technical scheme of the present invention is realized as follows: Shooting Technique packet described in a kind of Shooting Technique of Bluetooth audio device shell
Include following steps:
S1), mold design: mold is processed according to the shape, size and size of Bluetooth audio device shell, is designed into glue
Point, coolant flow channel polish existing mold cavity surface, and mold cavity surface roughness is 0.1-0.2Ra/um；
S2), modified plastics is granulated: resisting 90~95 parts of synthetic resin, 3~5 parts of antiagers, 2~3 parts by mass fraction
Oxidant, 4~7 parts of fire retardants, 3~5 parts of toughener and 1~2 part of stabilizer are uniformly mixed, and are sent into 200~220 DEG C of batch mixer
In, 15~20min is mixed, then by extruder extruding pelletization, after cooling obtain required modified plastic agglomerate；
S3), plastic master batch is dry: plastic master batch being dried using dehumidification equipment, drying temperature is 80~90
DEG C, drying time is 3~4h, the moisture content of plastic master batch after drying is tested with detector for water content rate, if plastic particles is aqueous
Rate is greater than 0.08%, repeats S3 step；
S4), injection molding: preheating injection-moulding device and mold, sets injection parameters, and plastic master batch is sent into and is molded
It is molded in the barrel of equipment, injection molding includes injection, pressure maintaining and cooling；
S5), demoulding sizing: after injection molding, mold is opened, and Bluetooth audio device shell is ejected by the thimble of mold, will be outer
Shell is put into carrier, places 2~3h at room temperature, removes after cooling and shaping, semi-finished product shell is made；
S6), polishing and table at: semi-finished product shell is subjected to grinding process with the sand paper of 600~1200 mesh, is used after polishing
Dedusting rifle and dust removing cloth are dusted and destatic；
S7), promotor sprays: double of finished shell carries out ungrease treatment using degreasing agent, surface is then dried up, on surface
One layer of nylon promotor is sprayed, then dries up surface；
S8), surface lacquer: by treated the shell of above-mentioned steps 7, carrying out spray painting processing, coating is spread evenly across outer
Shell surface then carries out drying and processing in the baking room that temperature is 80~110 DEG C, is cooled to room temperature after taking-up；
S9), product test: appearance and performance test are carried out to the shell in step 8, obtained outside finished product after the assay was approved
Shell.
Preferably, the synthetic resin in the step 2 is the mixture of polycarbonate and polybutylene terephthalate,
The mass ratio of the two is 3:1.
Preferably, preheating temperature is 160~185 DEG C in the step 4, and preheating time is 20~30min.
Injection pressure is 85~95MPa in the step 4, and dwell pressure is 55~65MPa, and cooling time is 1~2min.
Antiager in the step 2 is zinc oxide or dilauryl thiodipropionate.
Preferably, the toughener in the step 2 is phenylacetic acid -2- acrylic ester or polyacrylate.
Stabilizer in the step 2 is three rouge of phosphorous acid.
Preferably, the antioxidant in the step 2 is Hinered phenols antioxidant.
In the step S9, performance test includes fire protecting performance test, Falling ball impact strength test and sheet resistance test.
The invention solves the defect existing in the background technology, has the advantages that
The Shooting Technique of Bluetooth audio device shell provided by the invention is simple and reasonable, not only solves existing Bluetooth audio device
Hypodynamic problem is adhered in case surface spraying, and can improve ageing-resistant performance, impact resistance and the flame retardant property of shell.
The present invention is by using mold design, modified plastics granulation, plastic master batch drying, injection molding, demoulding sizing, polishing and table
Place, the process flow for spraying promotor, product test, improve the quality of product, reduce production cost, improve the resistance to old of product
Change performance, impact resistance, flame retardant property and service life.The present invention is using modified plastics as primary raw material, light weight, mechanical property
Can be good, impact resistance, moulding processability is good, and heat resistance with higher, and electrical insulation capability is good, joined ageing-resistant
Agent, it is durable, it will not aging；Stabilizer is added, it is easier to form；Toughener is added, improves shock resistance and hardness.
Fire retardant is added, improves flame retardant property.By increasing sand paper grinding process technique in case surface, after polishing and to semi-finished product
Shell carries out ungrease treatment using degreasing agent, sprays one layer of nylon promotor on surface, improves interlayer adhesion property, make plastics
Shell is not easy paint, improves case surface spraying adhesive force.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
The Shooting Technique embodiment 1 of Bluetooth audio device shell
It is prepared according to following Shooting Technique:
S1), mold design: mold is processed according to the shape, size and size of Bluetooth audio device shell, is designed into glue
Point, coolant flow channel polish existing mold cavity surface, and mold cavity surface roughness is 0.1-0.2Ra/um；
S2), modified plastics is granulated: pressing mass fraction for 93 parts of synthetic resin, 3~5 parts of zinc oxide antiagers, 2.5 parts
Antioxidant, 5 parts of fire retardants, 4 parts of phenylacetic acid -2- acrylic ester toughener and 1.5 parts of three rouge stabilizers of phosphorous acid are uniformly mixed, and are sent
Enter in 210 DEG C of batch mixer, 18min be mixed, then by extruder extruding pelletization, after cooling obtain required change
Property plastic master batch.The mixture of polycarbonate and polybutylene terephthalate, the mass ratio of the two are 3:1.
S3), plastic master batch is dry: plastic master batch being dried using dehumidification equipment, drying temperature is 85 DEG C, is done
The dry time is 3.5h, the moisture content of plastic master batch after drying is tested with detector for water content rate, if the moisture content of plastic particles is greater than
0.08%, repeat S3 step；
S4), injection molding: preheating injection-moulding device and mold, sets injection parameters, and plastic master batch is sent into and is molded
It is molded in the barrel of equipment, injection molding includes injection, pressure maintaining and cooling；Preheating temperature is 170 DEG C, preheating time 25min.
Injection pressure is 90MPa, dwell pressure 60MPa, cooling time 1.5min.
S5), demoulding sizing: after injection molding, mold is opened, and Bluetooth audio device shell is ejected by the thimble of mold, will be outer
Shell is put into carrier, places 2.5h at room temperature, removes after cooling and shaping, and semi-finished product shell is made；
S6), polishing and table at: semi-finished product shell is subjected to grinding process with the sand paper of 600~1200 mesh, is used after polishing
Dedusting rifle and dust removing cloth are dusted and destatic；
S7), promotor sprays: double of finished shell carries out ungrease treatment using degreasing agent, surface is then dried up, on surface
One layer of nylon promotor is sprayed, then dries up surface；
S8), surface lacquer: by treated the shell of above-mentioned steps 7, carrying out spray painting processing, coating is spread evenly across outer
Shell surface then carries out drying and processing in the baking room that temperature is 105 DEG C, is cooled to room temperature after taking-up；
S9), product test: appearance and performance test are carried out to the shell in step 8, obtained outside finished product after the assay was approved
Shell.Performance test includes fire protecting performance test, Falling ball impact strength test and sheet resistance test.
The Shooting Technique embodiment 2 of Bluetooth audio device shell
It is prepared according to following Shooting Technique:
S1), mold design: mold is processed according to the shape, size and size of Bluetooth audio device shell, is designed into glue
Point, coolant flow channel polish existing mold cavity surface, and mold cavity surface roughness is 0.1-0.2Ra/um；
S2), modified plastics is granulated: by mass fraction that 90 parts of synthetic resin, 3 parts of dilauryl thiodipropionates are ageing-resistant
Agent, 2 parts of hindered phenol anti-oxidants, 4 parts of fire retardants, 3 parts of polyacrylate toughener and 1 part of three rouge stabilizer of phosphorous acid mixing
Uniformly, it is sent into 200 DEG C of batch mixer, 15min is mixed, then by extruder extruding pelletization, obtaining after cooling
Required modified plastic agglomerate；The mixture of polycarbonate and polybutylene terephthalate, the mass ratio of the two are 3:1.
S3), plastic master batch is dry: plastic master batch being dried using dehumidification equipment, drying temperature is 80 DEG C, is done
The dry time is 3~4h, the moisture content of plastic master batch after drying is tested with detector for water content rate, if the moisture content of plastic particles is greater than
0.08%, repeat S3 step；
S4), injection molding: preheating injection-moulding device and mold, sets injection parameters, and plastic master batch is sent into and is molded
It is molded in the barrel of equipment, injection molding includes injection, pressure maintaining and cooling；Preheating temperature is 160 DEG C, preheating time 20min.
Injection pressure is 85MPa, dwell pressure 55MPa, cooling time 1min.
S5), demoulding sizing: after injection molding, mold is opened, and Bluetooth audio device shell is ejected by the thimble of mold, will be outer
Shell is put into carrier, places 2h at room temperature, removes after cooling and shaping, and semi-finished product shell is made；
S6), polishing and table at: semi-finished product shell is subjected to grinding process with the sand paper of 600~1200 mesh, is used after polishing
Dedusting rifle and dust removing cloth are dusted and destatic；
S7), promotor sprays: double of finished shell carries out ungrease treatment using degreasing agent, surface is then dried up, on surface
One layer of nylon promotor is sprayed, then dries up surface；
S8), surface lacquer: by treated the shell of above-mentioned steps 7, carrying out spray painting processing, coating is spread evenly across outer
Shell surface then carries out drying and processing in the baking room that temperature is 80 DEG C, is cooled to room temperature after taking-up；
S9), product test: appearance and performance test are carried out to the shell in step 8, obtained outside finished product after the assay was approved
Shell.
The Shooting Technique embodiment 3 of Bluetooth audio device shell
It is prepared according to following Shooting Technique:
S1), mold design: mold is processed according to the shape, size and size of Bluetooth audio device shell, is designed into glue
Point, coolant flow channel polish existing mold cavity surface, and mold cavity surface roughness is 0.1-0.2Ra/um；
S2), modified plastics is granulated: by mass fraction that 95 parts of synthetic resin, 5 parts of dilauryl thiodipropionates are ageing-resistant
Agent, 3 parts of hindered phenol anti-oxidants, 7 parts of fire retardants, 5 parts of phenylacetic acid -2- acrylic ester toughener and 2 parts of three rouge of phosphorous acid are stablized
Agent is uniformly mixed, and is sent into 220 DEG C of batch mixer, and 20min is mixed, then by extruder extruding pelletization, after cooling
Obtain required modified plastic agglomerate；The mixture of polycarbonate and polybutylene terephthalate, the mass ratio of the two
For 3:1.
S3), plastic master batch is dry: plastic master batch being dried using dehumidification equipment, drying temperature is 90 DEG C, is done
The dry time is 4h, the moisture content of plastic master batch after drying is tested with detector for water content rate, if the moisture content of plastic particles is greater than
0.08%, repeat S3 step；
S4), injection molding: preheating injection-moulding device and mold, sets injection parameters, and plastic master batch is sent into and is molded
It is molded in the barrel of equipment, injection molding includes injection, pressure maintaining and cooling；Preheating temperature is 185 DEG C, preheating time 30min.
Injection pressure is 95MPa, dwell pressure 65MPa, cooling time 2min.
S5), demoulding sizing: after injection molding, mold is opened, and Bluetooth audio device shell is ejected by the thimble of mold, will be outer
Shell is put into carrier, places 3h at room temperature, removes after cooling and shaping, and semi-finished product shell is made；
S6), polishing and table at: semi-finished product shell is subjected to grinding process with the sand paper of 600~1200 mesh, is used after polishing
Dedusting rifle and dust removing cloth are dusted and destatic；
S7), promotor sprays: double of finished shell carries out ungrease treatment using degreasing agent, surface is then dried up, on surface
One layer of nylon promotor is sprayed, then dries up surface；
S8), surface lacquer: by treated the shell of above-mentioned steps 7, carrying out spray painting processing, coating is spread evenly across outer
Shell surface then carries out drying and processing in the baking room that temperature is 110 DEG C, is cooled to room temperature after taking-up；
S9), product test: appearance and performance test are carried out to the shell in step 8, obtained outside finished product after the assay was approved
Shell.
Bluetooth audio device shell performance test prepared by the present invention:
With the embodiment of the present invention 1, embodiment 2, embodiment 3, using traditional Bluetooth audio device envelope process as reference example,
Obtained Bluetooth audio device finished panel progress tensile strength, tolerable temperature and heat-resistant fireproof is manufactured to be compared, it is specific to examine
It is as shown in the table to survey result:
Table 1
As can be seen that the performance parameter of Examples 1 to 3 is excellent from the data of table 1, parameters are superior to reference example.
The course of work of the invention is: the present invention is granulated by using mold design, modified plastics, plastic master batch is dry,
Injection molding, demoulding sizing, polishing and table at, spraying promotor, product test process flow, improve the quality of product, drop
Low production cost improves ageing-resistant performance, impact resistance, flame retardant property and the service life of product.The present invention is with modification
Plastics are primary raw material, and light weight, good mechanical properties, impact resistance, moulding processability is good, and with higher heat-resisting
Property, electrical insulation capability is good, joined antiager, and it is durable, it will not aging；Stabilizer is added, it is easier to form；It is added and increases
Tough dose, improve shock resistance and hardness.Fire retardant is added, improves flame retardant property.By increasing sand paper in case surface
Grinding process technique, after polishing and double of finished shell is using degreasing agent progress ungrease treatment, sprays one layer of nylon on surface and promotees
Into agent, interlayer adhesion property is improved, plastic shell is made to be not easy paint, improves case surface spraying adhesive force.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of Shooting Technique of Bluetooth audio device shell, which is characterized in that the Shooting Technique the following steps are included:
S1), mold design: processing mold according to the shape, size and size of Bluetooth audio device shell, design into glue point,
Coolant flow channel polishes existing mold cavity surface, and mold cavity surface roughness is 0.1-0.2Ra/um；
S2), modified plastics be granulated: by mass fraction by 90~95 parts of synthetic resin, 3~5 parts of antiagers, 2~3 parts it is anti-oxidant
Agent, 4~7 parts of fire retardants, 3~5 parts of toughener and 1~2 part of stabilizer are uniformly mixed, and are sent into 200~220 DEG C of batch mixer,
15~20min is mixed, then by extruder extruding pelletization, after cooling obtain required modified plastic agglomerate；
S3), plastic master batch is dry: plastic master batch being dried using dehumidification equipment, drying temperature is 80~90 DEG C, is done
The dry time is 3~4h, the moisture content of plastic master batch after drying is tested with detector for water content rate, if the moisture content of plastic particles is greater than
0.08%, repeat S3 step；
S4), injection molding: preheating injection-moulding device and mold, sets injection parameters, plastic master batch is sent into injection-moulding device
Barrel in be molded, injection molding include project, pressure maintaining and cooling；
S5), demoulding sizing: after injection molding, mold is opened, and Bluetooth audio device shell is ejected by the thimble of mold, and shell is put
Enter carrier, places 2~3h at room temperature, removed after cooling and shaping, semi-finished product shell is made；
S6), at polishing and table: semi-finished product shell being carried out grinding process with the sand paper of 600~1200 mesh, using dedusting after polishing
Rifle and dust removing cloth are dusted and destatic；
S7), promotor sprays: double of finished shell carries out ungrease treatment using degreasing agent, then dries up surface, sprays on surface
One layer of nylon promotor, then dry up surface；
S8), surface lacquer: by treated the shell of above-mentioned steps 7, spray painting processing is carried out, coating is spread evenly across shell table
Face then carries out drying and processing in the baking room that temperature is 80~110 DEG C, is cooled to room temperature after taking-up；
S9), product test: appearance and performance test are carried out to the shell in step 8, obtain finished shell after the assay was approved.
2. the Shooting Technique of Bluetooth audio device shell according to claim 1, it is characterised in that: the synthesis in the step 2
Resin is the mixture of polycarbonate and polybutylene terephthalate, and the mass ratio of the two is 3:1.
3. the Shooting Technique of Bluetooth audio device shell according to claim 1, it is characterised in that: preheat temperature in the step 4
Degree is 160~185 DEG C, and preheating time is 20~30min.
4. the Shooting Technique of Bluetooth audio device shell according to claim 1, it is characterised in that: be molded pressure in the step 4
Power is 85~95MPa, and dwell pressure is 55~65MPa, and cooling time is 1~2min.
5. the Shooting Technique of Bluetooth audio device shell according to claim 1, it is characterised in that: resistance to old in the step 2
Agent is zinc oxide or dilauryl thiodipropionate.
6. the Shooting Technique of Bluetooth audio device shell according to claim 1, it is characterised in that: the toughening in the step 2
Agent is phenylacetic acid -2- acrylic ester or polyacrylate.
7. the Shooting Technique of Bluetooth audio device shell according to claim 1, it is characterised in that: the stabilization in the step 2
Agent is three rouge of phosphorous acid.
8. the Shooting Technique of Bluetooth audio device shell according to claim 1, it is characterised in that: the antioxygen in the step 2
Agent is Hinered phenols antioxidant.
9. the Shooting Technique of Bluetooth audio device shell according to claim 1, it is characterised in that: in the step S9, performance
Test includes fire protecting performance test, Falling ball impact strength test and sheet resistance test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251643A (en) * | 2020-01-07 | 2020-06-09 | 深圳市博耀新材料有限公司 | Hand-feeling paint mobile phone shell and injection molding process |
| CN113895057A (en) * | 2021-09-03 | 2022-01-07 | 江苏宝顺塑胶有限公司 | Method for manufacturing plastic part by CMC (carboxy methyl cellulose) process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107325516A (en) * | 2017-07-12 | 2017-11-07 | 合肥展游软件开发有限公司 | A kind of manufacturing process of router cover |
| CN107474289A (en) * | 2017-07-25 | 2017-12-15 | 安徽胜利精密制造科技有限公司 | A kind of process of surface treatment of notebook computer casing moulding |
| CN108748937A (en) * | 2018-06-28 | 2018-11-06 | 昆山弘正电子科技有限公司 | The injection molding process of router cover |
-
2019
- 2019-07-08 CN CN201910608447.XA patent/CN110328804A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107325516A (en) * | 2017-07-12 | 2017-11-07 | 合肥展游软件开发有限公司 | A kind of manufacturing process of router cover |
| CN107474289A (en) * | 2017-07-25 | 2017-12-15 | 安徽胜利精密制造科技有限公司 | A kind of process of surface treatment of notebook computer casing moulding |
| CN108748937A (en) * | 2018-06-28 | 2018-11-06 | 昆山弘正电子科技有限公司 | The injection molding process of router cover |
Non-Patent Citations (2)
| Title |
|---|
| 吴复宇: "《汽车涂装技术》", 31 August 2006, 中央广播电视大学出版社 * |
| 崔继耀: "《注塑生产疑难问题与对策》", 31 July 2008, 国防工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251643A (en) * | 2020-01-07 | 2020-06-09 | 深圳市博耀新材料有限公司 | Hand-feeling paint mobile phone shell and injection molding process |
| CN113895057A (en) * | 2021-09-03 | 2022-01-07 | 江苏宝顺塑胶有限公司 | Method for manufacturing plastic part by CMC (carboxy methyl cellulose) process |
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