CN108724589A - A kind of mobile phone shell preparation method for material - Google Patents
A kind of mobile phone shell preparation method for material Download PDFInfo
- Publication number
- CN108724589A CN108724589A CN201810603324.2A CN201810603324A CN108724589A CN 108724589 A CN108724589 A CN 108724589A CN 201810603324 A CN201810603324 A CN 201810603324A CN 108724589 A CN108724589 A CN 108724589A
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- Prior art keywords
- shell
- plastic cellphone
- test
- plastic
- cellphone shell
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- 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.)
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Classifications
-
- 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
- B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
-
- 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
-
- 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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
-
- 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
- B29C2045/0079—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 applying a coating or covering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of mobile phone shell preparation method for material, include the following steps：Step 1：Raw material mixes；Plastics rice, metal flashing and Masterbatch are uniformly mixed, wherein the weight ratio between plastics rice, metal flashing and Masterbatch is 1000:20:1；Step 2：Injection molding；Mixture in step 1 is molded by injection molding machine with certain thickness plastic cellphone shell；Step 3：Oil spout；Step 4：Detection；Plastic cellphone shell is spot-check；Technological operation provided by the invention is easy, metal flashing can be directly added in mixture, make have the effect of similar even more than spray metal flashlight powder by plastic cellphone shell, at the same need not spray-applied primer, reduce spraying number and reduce the consumption of pigment, not only improve production efficiency, production cost is also reduced, and plus cleaning and electrostatic precipitation step, is conducive to the adhesive force of enhancing priming paint and finishing coat, spraying effect is effectively promoted, ensures product quality.
Description
Technical field
The present invention relates to a kind of wide range, specifically a kind of mobile phone shell preparation method for material.
Background technology
There are mobile telephone (Hong Kong police-and-bandit film in mobile phone also known as mobile phone, the mobile phone that can be held in the hand, early stage again
In eldest brother's human hand one) be commonly called as, be the portable telephone terminal that can be used in the broader context, several types of mobile phone point
Type：2G, 3G have been developed to the 4G epoch at present.
Mobile phone shell is the important component of mobile phone, and mobile phone shell can play the role of protection to mobile phone.Currently, mobile phone machine
The material of shell includes mainly metal chassis and plastic rubber case two major classes.Due to mobile phone use oneself through widely available, consumer one
Aspect focuses on the performance of mobile phone itself, on the other hand also focuses on the appearance of mobile phone.
The appearance of metallic mobile phone casing is good, is allowed to increasingly be favored by cell phone manufacturer, still, metallic mobile phone machine
The processing of shell is extremely complex, causes the production cost of metallic mobile phone casing higher.
Invention content
The purpose of the present invention is to provide a kind of mobile phone shell preparation method for material, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides the following technical solutions：
A kind of mobile phone shell preparation method for material, includes the following steps：
Step 1：Raw material mixes；Plastics rice, metal flashing and Masterbatch are uniformly mixed, wherein plastics rice, metal flashing
Weight ratio between Masterbatch is 1000:20:1, wherein plastics rice is PET material；
Step 2：Injection molding；Mixture in step 1 is molded by injection molding machine with certain thickness plastic cellphone
Shell；
Step 3：Oil spout；
3.1 assembly plastic cellphone shells, plastic cellphone shell is fixed on oil spout fixture, then that oil spout fixture is solid in a centralised manner
It is scheduled on rotation jig, rotation jig high speed rotation is driven by motor, it is ensured that realize through fixed spray gun with aerial spraying side
Formula quantifies paint solution, uniformly, be continuously fed to plastic cellphone shell surface, on glue part surface after solvent volatilization, film curing
Form uniform, continuous paint film；
3.2 cleaning:Plastic cellphone shell on oil spout fixture is cleaned, realizes the water for removing plastic cellphone shell Adsorption on Surface
Point, spot, foreign matter, spot includes greasy dirt and dirty, and foreign matter includes the paint that visible dust granule, collodion silk, oil spout clamp strap are come
Skin etc., it is ensured that paint solution can infiltrate plastic cellphone shell surface；
3.3 electrostatic precipitation:Then electrostatic precipitation operation is carried out to each region on the plastic cellphone shell, realizes and eliminates plastic cement
Electrostatic in mobile phone shell further removes the foreign matter remained on plastic cellphone shell；
3.4 finishing coat oil spouts:Finishing coat is quantified, is continuously sprayed on plastic cellphone shell, and uniform fold plastic cellphone hull shape at
Uniformly, continuous top coat layer, the finished product after top coat layer solidification.
Step 4：Detection；Plastic cellphone shell is spot-check.
4.1：Wear-resisting test is tested；
4.2：Adhesive force is tested：
4.3. hardness test：
Further, other can also be added into the injected plastics material according to actual needs can improve adding for injected plastics material performance
Add agent, such as optical brightener, lubricant；
Further, the step 2 specifically by injection molding machine injection molding 0.45mm plastic cellphone shell, injection molding
Temperature is 290 DEG C, and the time of injection molding is 28s:Wherein, injection molding machine includes plastic cellphone shell mold chamber, plastic cellphone shell mold chamber
There are three glue-feeders for setting, and injection molding machine further includes for carrying out cooling cooling system to plastic cellphone shell after injection molding.
Further, in the step 3.3：By automatic electrostatic dust collection wind nozzle, plastic cellphone shell is carried out 2 one 3 seconds
Electrostatic precipitation removes the invisible dust pellet remained on plastic cellphone shell surface and eliminates electrostatic.
Further, 4.1：Wear-resisting test is tested：With the wear test machine of NORMAN companies and the nothing of the said firm
Oil abrasion broken, tested plastic cellphone shell must be mounted on the platform of abrasion resistant tester, plastic cellphone during test
Shell must not move, and 175KG weights is added on the rocking arm of test machine, and adjustment platform is honest, and to writing lever, paper tape pitch of the laps shaft rotation is dynamic,
Wear-resisting test process is that the detected product of paper tape contact, when testing beginning, the counter of abrasion resistant tester, is set as zero,
Preparation of samples is tested well, and the motor switch of abrasion resistant tester is opened, and counter will control defined number, and mould in this case
Glue mobile phone shell must be subjected to 50 tests, and after the completion of test, plastic cellphone shell checks that can finishing coat be subjected to this survey by tested
Examination；If during the test, abrasion reaches its moulding layer across finishing coat, can visually see being just test failure.
Further, step 4.2 adhesive force, which is tested, is specially：
4.2.1：Select film thickness：0~60 μm, cutter spacing 1mm's draws lattice device, and square crossing is drawn on plastic cellphone shell surface
Grid；
4.2.2：Position of the adhesive tape above grid regions is flattened, gluing strip length at least over grid 20mm, in order to ensure
Adhesive tape is good with coating layer touch, firmly rubs adhesive tape with finger tip, is through the coating color comprehensive engagement that adhesive tape is seen
Effective display, is sticking in adhesive tape 5min, is holding the hanging one end of adhesive tape, and in the angle as close possible to 60 °
0.5-1s smoothly tears off adhesive tape inside.
4.2.3：Judging result, criterion use the cross cut test GB/T9286-1998 of national standard paint and varnish paint film
Plays determine wherein which kind of specific standard is qualification according to the specific requirements of producer.
Further, step 4.3 hardness test is specially：Plastic cellphone shell is placed in firm plane, is held hard
Degree meter presses the pressing of sufficient mesoporous apart from test block edge at least 12mm, and smoothly pressure foot is pressed on sample, cannot there is any shake
It is dynamic, and pressure foot is kept to be parallel to specimen surface, so that vertically pressing in sample, the power applied will just be enough to keep pressure sufficient pressing
With sample completely attach to, unless otherwise specified, it is necessary to pressure foot and sample completely by 1 second after touch in read, if it is other intervals
Time read then mandatory declaration measures hardness number 5 times at a distance of the different location of at least 6mm in sample, takes its average value；It is wherein hard
Degree meter uses LX-D type Shore durometers.
Technological operation provided by the invention is easy, and metal flashing can be directly added in mixture, is made through plastic cement hand
Casing has the effect of similar even more than spray metal flashlight powder, but cost is more low compared to existing metal hand casing
It is honest and clean, at the same need not spray-applied primer, reduce spraying number and reduce pigment consumption, not only improve production efficiency, also reduce life
Cost is produced, and plus cleaning and electrostatic precipitation step, is conducive to the adhesive force of enhancing priming paint and finishing coat, effectively promotes spraying effect
Fruit ensures product quality.
Specific implementation mode
The technical solution of this patent is described in more detail With reference to embodiment.
A kind of mobile phone shell preparation method for material, includes the following steps：
Step 1：Raw material mixes；Plastics rice, metal flashing and Masterbatch are uniformly mixed, wherein plastics rice, metal flashing
Weight ratio between Masterbatch is 1000:20:1, wherein plastics rice is PET material；
Using existing injection molding technology as platform, by adding metal flashing into plastics rice, to make to note by the injected plastics material
The product moulded out has the effect of similar even more than spray metal flashlight powder；By the allotment to color, the injection molding can be made
Material injection come out product reach different color effects, if plastics rice using transparent material, can be by not
Different translucent effects is mixed with the dosage of Masterbatch and metal flashing；Those skilled in the art can also be according to reality
Border, which needs other are added into the injected plastics material, can improve the additive of injected plastics material performance, such as optical brightener, lubricant；
Step 2：Injection molding；Mixture in step 1 is molded by injection molding machine with certain thickness plastic cellphone
Shell, specifically by the plastic cellphone shell of injection molding machine injection molding 0.45mm, the temperature of injection molding is 290 DEG C, injection molding
Time be 28s:Wherein, injection molding machine includes plastic cellphone shell mold chamber, and there are three glue-feeder, injection moldings for the setting of plastic cellphone shell mold chamber
Machine further includes for carrying out cooling cooling system to plastic cellphone shell after injection molding.；
Step 3：Oil spout；
3.1 assembly plastic cellphone shells, plastic cellphone shell is fixed on oil spout fixture, then that oil spout fixture is solid in a centralised manner
It is scheduled on rotation jig, rotation jig high speed rotation is driven by motor, it is ensured that realize through fixed spray gun with aerial spraying side
Formula quantifies paint solution, uniformly, be continuously fed to plastic cellphone shell surface, on glue part surface after solvent volatilization, film curing
Form uniform, continuous paint film；
3.2 cleaning:Plastic cellphone shell on oil spout fixture is cleaned, realizes the water for removing plastic cellphone shell Adsorption on Surface
Point, spot, foreign matter, spot includes greasy dirt and dirty, and foreign matter includes the paint that visible dust granule, collodion silk, oil spout clamp strap are come
Skin etc., it is ensured that paint solution can infiltrate plastic cellphone shell surface；
3.3 electrostatic precipitation:Then electrostatic precipitation operation is carried out to each region on the plastic cellphone shell, realizes and eliminates plastic cement
Electrostatic in mobile phone shell further removes the foreign matter remained on plastic cellphone shell；
3.4 finishing coat oil spouts:Finishing coat is quantified, is continuously sprayed on plastic cellphone shell, and uniform fold plastic cellphone hull shape at
Uniformly, continuous top coat layer, the finished product after top coat layer solidification.
Wherein in step 3.3：By automatic electrostatic dust collection wind nozzle, 2 one 3 seconds electrostatic precipitations are carried out to plastic cellphone shell,
It removes the invisible dust pellet remained on plastic cellphone shell surface and eliminates electrostatic.
Step 4：Detection；Wear-resisting test, adhesive force test and hardness test are carried out to plastic cellphone shell.
4.1：Wear-resisting test is tested：Paper is worn with the wear test machine of NORMAN companies and the oil-free of the said firm, is tested
Plastic cellphone shell must be mounted in abrasion resistant tester platform on, plastic cellphone shell must not move during test, survey
Adding 175KG weights on the rocking arm of test-run a machine, adjustment platform is honest, and to writing lever, paper tape pitch of the laps shaft rotation is dynamic, is in wear-resisting test process,
The detected product of paper tape contact, when testing beginning, the counter of abrasion resistant tester, is set as zero, and preparation of samples is tested well,
Open the motor switch of abrasion resistant tester, counter will control as defined in number, plastic cellphone shell must be through in this case
It is tested by 50 times, after the completion of test, plastic cellphone shell checks that can finishing coat be subjected to this test by tested；If testing
Cheng Zhong wears across finishing coat, reaches its moulding layer, can visually see being just test failure.；
4.2：Adhesive force is tested：
4.2.1：Select film thickness：0~60 μm, cutter spacing 1mm's draws lattice device, and square crossing is drawn on plastic cellphone shell surface
Grid；
4.2.2：Position of the adhesive tape above grid regions is flattened, gluing strip length at least over grid 20mm, in order to ensure
Adhesive tape is good with coating layer touch, firmly rubs adhesive tape with finger tip, is through the coating color comprehensive engagement that adhesive tape is seen
Effective display, is sticking in adhesive tape 5min, is holding the hanging one end of adhesive tape, and in the angle as close possible to 60 °
0.5-1s smoothly tears off adhesive tape inside；
4.2.3：Judging result, criterion are got the bid using the cross cut test GB/T9286-1998 of national standard paint and varnish paint film
Standard determines wherein which kind of specific standard is qualification according to the specific requirements of producer.
4.3. hardness test：
Plastic cellphone shell is placed in firm plane, holds hardometer, press the pressing of sufficient mesoporous apart from test block edge at least
12mm is smoothly pressed in pressure foot on sample, cannot there is any vibration, and pressure foot is kept to be parallel to specimen surface, so that pressing
Vertically pressing in sample, the power applied will just be enough that pressure foot and sample is made to completely attach to, unless otherwise specified, it is necessary in pressure foot
With sample completely by being read in 1 second after touch, then mandatory declaration is read if it is other interval times, in sample at a distance of at least 6mm
Different location measure hardness number 5 times, take its average value；Wherein hardometer uses LX-D type Shore durometers, LX-D type shore
Hardometer is suitable for the high rigidity rubber-plastics materials such as general hard rubber, animi resin, organic glass, thermoplastic plastic, printing plate, fiber
Hardness test, product meets the requirement of GB/T531-1999 and other relevant criterions, can both carry hand-held measurement,
It can be used in mating SLX type Shore durometer test chassis with device.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, one skilled in the relevant art within the scope of knowledge, can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (7)
1. a kind of mobile phone shell preparation method for material, which is characterized in that include the following steps：
Step 1：Raw material mixes；Plastics rice, metal flashing and Masterbatch are uniformly mixed, wherein plastics rice, metal flashing
Weight ratio between Masterbatch is 1000:20:1, wherein plastics rice is PET material；
Step 2：Injection molding；Mixture in step 1 is molded by injection molding machine with certain thickness plastic cellphone
Shell；
Step 3：Oil spout；
3.1 assembly plastic cellphone shells, plastic cellphone shell is fixed on oil spout fixture, then that oil spout fixture is solid in a centralised manner
It is scheduled on rotation jig, rotation jig high speed rotation is driven by motor, it is ensured that realize through fixed spray gun with aerial spraying side
Formula quantifies paint solution, uniformly, be continuously fed to plastic cellphone shell surface, on glue part surface after solvent volatilization, film curing
Form uniform, continuous paint film；
3.2 cleaning:Plastic cellphone shell on oil spout fixture is cleaned, realizes the water for removing plastic cellphone shell Adsorption on Surface
Point, spot, foreign matter, spot includes greasy dirt and dirty, and foreign matter includes the paint that visible dust granule, collodion silk, oil spout clamp strap are come
Skin etc., it is ensured that paint solution can infiltrate plastic cellphone shell surface；
3.3 electrostatic precipitation:Then electrostatic precipitation operation is carried out to each region on the plastic cellphone shell, realizes and eliminates plastic cement
Electrostatic in mobile phone shell further removes the foreign matter remained on plastic cellphone shell；
3.4 finishing coat oil spouts:Finishing coat is quantified, is continuously sprayed on plastic cellphone shell, and uniform fold plastic cellphone hull shape at
Uniformly, continuous top coat layer, the finished product after top coat layer solidification.
Step 4：Detection；Plastic cellphone shell is spot-check.
4.1：Wear-resisting test is tested；
4.2：Adhesive force is tested：
4.3. hardness test.
2. mobile phone shell preparation method for material according to claim 1, which is characterized in that can also be according to actual needs to the note
Other are added in moulding material can improve the additive of injected plastics material performance, such as optical brightener, lubricant.
3. mobile phone shell preparation method for material according to claim 1, which is characterized in that the step 2 is specifically by injection molding
The temperature of the plastic cellphone shell of machine injection molding 0.45mm, injection molding is 290 DEG C, and the time of injection molding is 28s, wherein
Injection molding machine includes plastic cellphone shell mold chamber, and for the setting of plastic cellphone shell mold chamber there are three glue-feeder, injection molding machine further includes for note
It moulds plastic cellphone shell after molding and carries out cooling cooling system.
4. mobile phone shell preparation method for material according to claim 1, which is characterized in that in the step 3.3：By from sound
Electric precipitation wind nozzle carries out 2 one 3 seconds electrostatic precipitations to plastic cellphone shell, remove remain on plastic cellphone shell surface can not
See dust pellet and eliminates electrostatic.
5. mobile phone shell preparation method for material according to claim 1, which is characterized in that the step 4.1 wear-resisting test test
Specially：Paper is worn with the wear test machine of NORMAN companies and the oil-free of the said firm, tested plastic cellphone shell must fill
On the platform of abrasion resistant tester, plastic cellphone shell must not move during test, and 175KG is added on the rocking arm of test machine
Weights, adjustment platform is honest, and to writing lever, paper tape pitch of the laps shaft rotation is dynamic, is in wear-resisting test process, the detected production of paper tape contact
Product, when testing beginning, the counter of abrasion resistant tester, is set as zero, preparation of samples is tested well, and the horse of abrasion resistant tester is opened
Up to switch, counter will control defined number, and plastic cellphone shell must be subjected to 50 tests in this case, test
Cheng Hou, plastic cellphone shell check that can finishing coat be subjected to this test by tested；If it during the test, wears across finishing coat,
Its moulding layer is reached, can visually see being just test failure.
6. mobile phone shell preparation method for material according to claim 1, which is characterized in that the step 4.3 adhesive force test tool
Body is：
4.2.1：Select film thickness：0~60 μm, cutter spacing 1mm's draws lattice device, and square crossing is drawn on plastic cellphone shell surface
Grid；
4.2.2：Position of the adhesive tape above grid regions is flattened, gluing strip length at least over grid 20mm, in order to ensure
Adhesive tape is good with coating layer touch, firmly rubs adhesive tape with finger tip, is through the coating color comprehensive engagement that adhesive tape is seen
Effective display, is sticking in adhesive tape 5min, is holding the hanging one end of adhesive tape, and in the angle as close possible to 60 °
0.5-1s smoothly tears off adhesive tape inside；
4.2.3：Judging result, criterion are got the bid using the cross cut test GB/T9286-1998 of national standard paint and varnish paint film
Standard determines wherein which kind of specific standard is qualification according to the specific requirements of producer.
7. mobile phone shell preparation method for material according to claim 1, which is characterized in that step 4.3 hardness test is specific
For：Plastic cellphone shell is placed in firm plane, holds hardometer, press the pressing of sufficient mesoporous apart from test block edge at least
12mm is smoothly pressed in pressure foot on sample, cannot there is any vibration, and pressure foot is kept to be parallel to specimen surface, so that pressing
Vertically pressing in sample, the power applied will just be enough that pressure foot and sample is made to completely attach to, unless otherwise specified, it is necessary in pressure foot
With sample completely by being read in 1 second after touch, then mandatory declaration is read if it is other interval times, in sample at a distance of at least 6mm
Different location measure hardness number 5 times, take its average value；Wherein hardometer uses LX-D type Shore durometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603324.2A CN108724589A (en) | 2018-06-12 | 2018-06-12 | A kind of mobile phone shell preparation method for material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603324.2A CN108724589A (en) | 2018-06-12 | 2018-06-12 | A kind of mobile phone shell preparation method for material |
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| CN108724589A true CN108724589A (en) | 2018-11-02 |
Family
ID=63929491
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114222016A (en) * | 2021-11-23 | 2022-03-22 | 曾祥春 | Anti-falling dustproof air bag tempered film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671844A (en) * | 2011-03-15 | 2012-09-19 | 东莞市旭通达模具塑胶有限公司 | Process for spraying plastic parts of mobile phone and mobile phone shell made by adopting process |
| CN105897977A (en) * | 2016-05-31 | 2016-08-24 | 苏州金口五金工具有限公司 | Method and device for manufacturing mobile phone shell |
| CN105915678A (en) * | 2016-05-31 | 2016-08-31 | 苏州金口五金工具有限公司 | Method and equipment for manufacturing composite mobile phone case |
-
2018
- 2018-06-12 CN CN201810603324.2A patent/CN108724589A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671844A (en) * | 2011-03-15 | 2012-09-19 | 东莞市旭通达模具塑胶有限公司 | Process for spraying plastic parts of mobile phone and mobile phone shell made by adopting process |
| CN105897977A (en) * | 2016-05-31 | 2016-08-24 | 苏州金口五金工具有限公司 | Method and device for manufacturing mobile phone shell |
| CN105915678A (en) * | 2016-05-31 | 2016-08-31 | 苏州金口五金工具有限公司 | Method and equipment for manufacturing composite mobile phone case |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114222016A (en) * | 2021-11-23 | 2022-03-22 | 曾祥春 | Anti-falling dustproof air bag tempered film |
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Application publication date: 20181102 |