CN104309058B - The processing method of a kind of plastic parts and plastic parts, electronic product casing - Google Patents
The processing method of a kind of plastic parts and plastic parts, electronic product casing Download PDFInfo
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- CN104309058B CN104309058B CN201410454044.1A CN201410454044A CN104309058B CN 104309058 B CN104309058 B CN 104309058B CN 201410454044 A CN201410454044 A CN 201410454044A CN 104309058 B CN104309058 B CN 104309058B
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- wood chip
- plastic parts
- printing
- electronic product
- processing method
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Classifications
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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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses the processing method of a kind of plastic parts and plastic parts, electronic product casing, plastic parts processing method comprises the following steps: 1) prepare injected plastics material；2) wood chip is prepared；3) molding: by step 2) wood chip that obtains puts in molding and die cutting die, and wood chip is molded into the appearance profile of needs；4) injection moulding: by step 3) process after wood chip put in injection mold, use step 1) described injected plastics material carries out injection moulding, injected plastics material is combined by described binding agent and wood chip, obtains the plastic parts combined by wood chip and plastic cement.The plastic parts of the present invention, by specific technique at wood chip surface printing glue, ink and binding agent, so that wood chip has high temperature resistant and stretch-proof performance, follow-up plastic, injection moulding, prepares plastic parts thus being combined with plastic cement.The plastic parts prepared has the outward appearance similar with log and texture and product structure concordance, can be widely used in electronic product, as electronic product casing.
Description
[technical field]
The present invention relates to plastic parts manufacture field, the processing method particularly relating to a kind of plastic parts with wood chip appearance.
[background technology]
The shell that plastic parts prepares is widely used in the fields such as mobile communication, electronics, automobile, biomedical devices.Existing plastic parts obtains by after injected plastics material injection moulding mostly, and material is mainly plastic cement.Along with improving constantly of people's living standard, the requirement for product casing also improves constantly, for instance wish that plastic parts shell is thinner, more attractive.Correspondingly, also occur the shell scheme as phone housing of metal material, to improve the metal-like of phone housing.Also has the directly plated film of spray metal texture on plastic parts shell, to improve electronic product appearance.At present, how further optimizing product enclosure designs, make electronic product casing possess the appearance of uniqueness, so that product obtains the better market share, be the people directions making great efforts to improve.
[summary of the invention]
The technical problem to be solved is: make up above-mentioned the deficiencies in the prior art, the processing method proposing a kind of plastic parts, the plastic parts prepared not only has the appearance similar with log and texture, and batch production has concordance, can be widely applied to the appearance of improving product in electronic product.
The present invention also proposes a kind of plastic parts, prepares according to above-mentioned processing method, has the effect above.
The present invention also proposes a kind of electronic product casing and electronic product, adopts above-mentioned plastic parts to prepare the shell of electronic product, thus having wood appearance effect, and batch production has concordance.
The technical problem of the present invention is solved by following technical scheme:
The processing method of a kind of plastic parts, comprises the following steps: 1) prepare injected plastics material；2) prepare wood chip, specifically include: 21) pre-treatment of chips: preparing thickness is the wood chip of 0.14mm～0.16mm, is soaked by described wood chip timber preservative, after immersion at the temperature of 30～40 DEG C air-dry 2～3 days；22) printing chemical composition: the machined surface at described pretreated wood chip prints the glue that a layer thickness is 0.07mm～0.09mm；Then on glue, print the protective layer ink that 7～9 layer thicknesses are 0.03mm～0.05mm, toast 30～60 minutes at 95～100 DEG C after often printing 2～4 layers of protective layer ink；Finally on protective layer ink, print a layer binder, toast 50～70 minutes at 95～100 DEG C after printing binding agent, prepare the wood chip handled well；3) molding: by step 2) wood chip that obtains puts in molding and die cutting die, and wood chip is molded into the appearance profile of needs；4) injection moulding: by step 3) process after wood chip put in injection mold, use step 1) described injected plastics material carries out injection moulding, injected plastics material is combined by described binding agent and wood chip, obtains the plastic parts combined by wood chip and plastic cement.
A kind of plastic parts, the plastic parts that described plastic parts obtains according to processing method described above.
A kind of electronic product casing adopting plastic parts as above to prepare.
A kind of electronic product, the shell of described electronic product is electronic product casing as above.
The present invention is compared with the prior art and provides the benefit that:
The processing method of the plastic parts of the present invention, by specific pretreatment, printing and baking process, at wood chip surface printing glue, ink and binding agent, so that wood chip has high temperature resistant and stretch-proof performance, follow-up injection moulding can stand high-temperature injection material, and can effectively in conjunction with injected plastics material so that wood chip can be combined with plastic cement prepare plastic parts.This plastic parts prepared has and the same or analogous outward appearance of log and texture, wood chip has high temperature resistant and tensile property after printing chemical reagent processes simultaneously, it is easy to put into hot-forming in mould, injection moulding, can ensure that typical products in mass production structural integrity by plastic mould injection moulding.Plastic parts can process the appearance profile being injection molded into needs, does not affect the assembling that plastic parts is applied in electronic product casing.When the plastic parts of the present invention is for electronic product casing, electronic product casing can be made to have wood appearance effect, it is thus achieved that natural ecosystem appearance, contribute to electronic product and obtain the good market share.
[accompanying drawing explanation]
Fig. 1 is the flow chart of the processing method of the plastic parts of the specific embodiment of the invention；
Fig. 2 is the schematic diagram of printing-ink technique in the plastic parts course of processing in the specific embodiment of the invention；
Fig. 3 is the structural representation of the wood chip handled well of the specific embodiment of the invention；
Fig. 4 is the wood chip handled well of specific embodiment of the invention schematic diagram when hot pressing；
Fig. 5 is the wood chip handled well of specific embodiment of the invention schematic diagram when die-cut；
Fig. 6 is the wood chip handled well of specific embodiment of the invention schematic diagram when injection moulding.
[detailed description of the invention]
Below in conjunction with detailed description of the invention and compare accompanying drawing the present invention is described in further details.
As it is shown in figure 1, be the process chart of the processing method of the plastic parts of this detailed description of the invention, comprise the following steps:
P1) injected plastics material is prepared.Preferably, injected plastics material is by the composite being made up of Merlon (PC) and glass material, and wherein, the mass fraction of Merlon (PC) is 80%～90%, the mass fraction of glass material is 10%～20%, and both mass fraction sums are 100%.In composite, main component is PC, is mixed into the glass material of 10%～20%, and glass material deformation retract is little, so that composite deformation is little.Follow-up on timber after injection moulding, timber deformation is little, thus the deformation of timber will not be caused to split.Above-mentioned injected plastics material is suitable for and combines after timber injection molded.
P2) prepare wood chip, specifically include:
P21), pre-treatment of chips: preparing thickness is the wood chip of 0.14mm～0.16mm, soaks wood chip timber preservative, after immersion at the temperature of 30～40 DEG C air-dry 2～3 days.
Specifically, select the good timber of toughness, with precision gas cutting machine, timber is cut into the wood chip that thickness is 0.14mm～0.16mm, the wood chip of well cutting CCA-C timber preservative is soaked 48h, by air-dry for wood chip 2～3 days at the temperature of 30～40 DEG C after having soaked.By pretreatment, so that it is guaranteed that wood chip anticorrosion and insect protected etc..And by the control of above-mentioned thickness, after chemical treatment, there is stretch resistance, facilitate follow-up punching molding, and the plastic cement strong bonded formed with injected plastics material.
P22), printing chemical composition: the machined surface at described pretreated wood chip prints the glue that a layer thickness is 0.07mm～0.09mm；Then on glue, print the protective layer ink that 7～9 layer thicknesses are 0.03mm～0.05mm, toast 30～60 minutes at 95～100 DEG C after often printing 2～4 layers of protective layer ink；Finally on protective layer ink, print a layer binder, toast 50～70 minutes at 95～100 DEG C after printing binding agent, prepare the wood chip handled well.
Specifically, with printer machined surface (the i.e. non-appearance face at wood chip, appearance generally selects the one side that beautiful texture is regular) print the glue (can be selected for polyurethanes glue) that a layer thickness is 0.07mm～0.09mm, increase the plasticity of wood chip.Then on the surface of printing glue, printing 7～9 layer thicknesses are the protective layer ink of 0.03mm～0.05mm; protective layer ink includes polystyrene, firming agent and diluent; in mass ratio; polystyrene: firming agent: diluent=100:(7～13): (12～18); preferably, the ratio of above-mentioned three is 100:10:15.As in figure 2 it is shown, pass through the cooperation of scraper 100 and half tone 200, ink for screen printing 300 on wood chip 1 during printing-ink.The ink printed being dried, toasting 30～60 minutes at 95～100 DEG C after often printing 2～4 layers of protective layer ink, thus can ensure that each layer ink is dried.Ink after printing drying is used for protecting wood chip, it is prevented that high-temperature injection material damage wood chip internal structure in follow-up injection moulding link, causes that the natural outward appearance of wood chip is destroyed naturally.Finally on protective layer ink, print a layer binder, toast 50～70 minutes at 95～100 DEG C after printing binding agent, prepare the wood chip handled well.The binding agent of printing is hot-melt adhesive, is solid-state, it is simple to transmit with wood chip after drying.Follow-up in injection moulding process, make binding agent be converted into molten condition after high-temperature injection material conducts heat, thus the ink layer on wood chip and injected plastics material being bonded together in injection moulding process, so that wood chip and plastic cement combine.In this detailed description of the invention, binding agent includes binding agent and diluent, in mass ratio, and binding agent: diluent is 100:(12～18).Binding agent can be selected for such as the kingdom's series of binders on market, such as IMB003 binding agent.The cross-sectional view of the wood chip handled well is as it is shown on figure 3, the wood chip 400 handled well includes wood chip layer 1, and wood chip layer 1 is printed over is formed with glue layer 2, protectiveness ink layer 3 (having 7 layers of ink layer shown in figure) and adhesive layer 4.
It should be noted that, electronic product casing, for instance phone housing is all arcuate structure, and general wood chip is all hard structure, and poor in processability.And, if to make plastic parts to be used as electronic product casing, such as, make phone structural, it is necessary to good product consistency, adopt the processing of simple timber not ensure that typical products in mass production structural integrity.Therefore, direct wood chip is applied in plastic parts, and there are some difficulties needs to overcome.In this detailed description of the invention, after pretreatment and chemical treatment two step, by the printing of each layer chemical reagent, glue layer, the THICKNESS CONTROL of ink layer, baking temperature and time control, in conjunction with the THICKNESS CONTROL of aforementioned wood chip, so that wood chip has the characteristic of high temperature resistance and stretch-proof.So, wood chip is capable of withstanding high temperature, has draftability, just can put in mould, and through hot pressing, die-cut, injection moulding forms final plastic parts.The plastic parts so prepared, not only has wood appearance effect, moreover it is possible to guarantee structural integrity when producing in batches.When plastic parts is applied to electronic product casing, both can ensure that the wood grain effect attractive in appearance of case surface, may insure that again typical products in mass production structural integrity.Thus, the concept that wood chip is combined with plastic cement just has the using value of reality.
As follows, test heat resistance and the tensile property of the wood chip after processing in this detailed description of the invention, test result is as shown in the table:
| Degree of drawing | Temperature tolerance | |
| Common wood chip | 0 | Within 120 DEG C |
| The above-mentioned wood chip handled well | 10～20% | 200～260 DEG C |
According to above-mentioned test result, it is known that the wood chip after the process of this detailed description of the invention has high temperature resistant, has certain degree of drawing.Follow-up it is easy to after hot pressing, die-cut, injection moulding to be combined with plastic cement, it is ensured that while wood effect, also assure that the concordance of product structure.
Preferably; during printing protective layer ink; printing 7～9 layer thicknesses are the protective layer ink of 0.05mm, toast 15～20 minutes after often printing layer protective layer ink at 95～100 DEG C, and toast 40 minutes at 95～100 DEG C after often printing three-layer protection layer ink.Outside this preferably satisfied application requirement of technology controlling and process, the production result according to reality, the degree of drawing of the wood chip of process and temperature tolerance performance, and treatment effeciency is also more satisfactory, has actual application value.
Further preferably; step 2) prepare wood chip time; take the wood chip that thickness is 0.15mm; after pretreatment, chemical composition is printed, during printing; print the protective layer ink that 7 layer thicknesses are 0.05mm; selecting the protective layer ink of kingdom IPX series, the composition of ink is: in mass ratio, polystyrene (IPX001): firming agent (IPX240): diluent (opens profit Z-705)=100:10:15.Often print and toast 15～20 minutes at 95～100 DEG C after layer protective layer ink, and toast 40 minutes at 95～100 DEG C after often printing three-layer protection layer ink.Finally printing a layer binder, select kingdom IMB series, Binder Composition is: in mass ratio, binding agent (IMB003 of kingdom): diluent (opens profit Z-705)=100:15.Toast 60 minutes at 95～100 DEG C after printing binding agent.According to the wood chip after the process that this optimal way obtains, degree of drawing higher (close to 20%), temperature tolerance also better (tolerating 260 DEG C of high temperature), has more excellent performance, and treatment effeciency also can meet application requirement.
P3) molding: by step P2) wood chip that obtains puts in molding and die cutting die, and wood chip is molded into the appearance profile of needs.As shown in Figures 4 and 5, for wood chip molding press cutting schematic diagram time.The machined surface (being printed with the side of glue, ink and binding agent) of wood chip 400 is carried out hot pressing by hot pressing die 500, and the structure of wood chip 400 is cut by punching tool 600 afterwards, finally makes wood chip 400 be shaped to trapezoidal shape.Under other application scenarios, the contour shape of needs can be hot pressed into according to application demand.
P4) injection moulding: by step P3) process after wood chip put in injection mold, use step P1) described injected plastics material carries out injection moulding, injected plastics material is combined by described binding agent and wood chip, obtains the plastic parts combined by wood chip and plastic cement.
Through step P2) process, wood chip has high temperature resistant and tensile property, therefore can put in injection mold tolerance high-temperature injection, so that wood chip and plastic cement combine, obtain the plastic parts combined by wood chip and plastic cement.As shown in Figure 6, for injection moulding process schematic representation time.In Fig. 6 a, remove dynamic model 700, wood chip 400 is put on cover half 800.In Fig. 6 b, close dynamic model 700 and cover half 800, compresses two moulds, injects the injected plastics material of high temperature fused state in a direction indicated by the arrow from the hole for injecting glue of cover half 800.In Fig. 6 c, after injection moulding completes, open dynamic model 700, take out shaped article plastic parts, including the plastic cement 900 formed after being solidified by injected plastics material of wood chip 400 and its upper combination.
The processing method of the plastic parts of this detailed description of the invention, chooses timber as raw material, and wood chip is processed through special process, so that wood chip has a performance of high temperature resistant stretch-proof, follow-up puts into molding, in injection mold, prepares plastic parts after injection moulding is in conjunction with plastic cement.Plastic parts includes wood chip and plastic cement, therefore has the outward appearance similar with log and texture, and plastic parts is to be put into hot-forming, injection moulding in mould by wood chip to prepare simultaneously, it is thus ensured that high-volume plastic parts product structure concordance.Plastic parts can process the appearance profile being injection molded into needs, does not affect the assembling that plastic parts is applied in electronic product casing.
The plastic parts of this detailed description of the invention is used for electronic product casing, in electronic product during application, it is used for example as mobile phone, PAD, during shell in computer or household electrical appliance, electronic product casing can be made to have wood appearance effect, it is thus achieved that natural ecosystem appearance, contribute to electronic product and obtain the good market share.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, make some replacements or obvious modification without departing from the inventive concept of the premise, and performance or purposes are identical, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the processing method of a plastic parts, it is characterised in that: comprise the following steps:
1) injected plastics material is prepared；
2) prepare wood chip, specifically include: 21) pre-treatment of chips: preparing thickness is the wood chip of 0.14mm～0.16mm, is soaked by described wood chip timber preservative, after immersion at the temperature of 30～40 DEG C air-dry 2～3 days；22) printing chemical composition: the machined surface at described pretreated wood chip prints the glue that a layer thickness is 0.07mm～0.09mm；Then on glue, print the protective layer ink that 7～9 layer thicknesses are 0.03mm～0.05mm, toast 30～60 minutes at 95～100 DEG C after often printing 2～4 layers of protective layer ink；Finally on protective layer ink, print a layer binder, toast 50～70 minutes at 95～100 DEG C after printing binding agent, prepare the wood chip handled well；
3) molding: by step 2) wood chip that obtains puts in molding and die cutting die, and wood chip is molded into the appearance profile of needs；
4) injection moulding: by step 3) process after wood chip put in injection mold, use step 1) described injected plastics material carries out injection moulding, injected plastics material is combined by described binding agent and wood chip, obtains the plastic parts combined by wood chip and plastic cement.
2. the processing method of plastic parts according to claim 1; it is characterized in that: described step 22) in; during printing protective layer ink; printing 7～9 layer thicknesses are the protective layer ink of 0.05mm; often print and toast 15～20 minutes at 95～100 DEG C after layer protective layer ink, and toast 40 minutes at 95～100 DEG C after often printing three-layer protection layer ink.
3. the processing method of plastic parts according to claim 1, it is characterised in that: described step 21) in take the wood chip that thickness is 0.15mm and carry out pretreatment；Described step 22) in, printing the protective layer ink that 7 layer thicknesses are 0.05mm, the composition of ink is: in mass ratio, polystyrene: firming agent: diluent=100:10:15；Often print and toast 15～20 minutes at 95～100 DEG C after layer protective layer ink, and toast 40 minutes at 95～100 DEG C after often printing three-layer protection layer ink；Finally printing a layer binder, Binder Composition is: in mass ratio, binding agent: diluent=100:15, toasts 60 minutes, prepare the wood chip handled well after printing binding agent at 95～100 DEG C.
4. the processing method of plastic parts according to claim 1, it is characterised in that: described step 22) in, described protective layer ink includes polystyrene, firming agent and diluent；In mass ratio, polystyrene: firming agent: diluent is 100:(7～13): (12～18).
5. the processing method of plastic parts according to claim 1, it is characterised in that: described step 22) in, described glue composition is polyurethane.
6. the processing method of plastic parts according to claim 1, it is characterized in that: described step 1) in, the composite that injected plastics material is made up of Merlon and glass material, wherein, the mass fraction of Merlon is 80%～90%, the mass fraction of glass material is 10%～20%, and both mass fraction sums are 100%.
7. a plastic parts, it is characterised in that: described plastic parts is the plastic parts that the processing method according to any one of claim 1～6 obtains.
8. one kind adopts the electronic product casing that plastic parts as claimed in claim 7 prepares.
9. an electronic product, it is characterised in that: the shell of described electronic product is the electronic product casing described in claim 8.
10. electronic product according to claim 9, it is characterised in that: described electronic product is mobile phone, computer or household electrical appliance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454044.1A CN104309058B (en) | 2014-09-05 | 2014-09-05 | The processing method of a kind of plastic parts and plastic parts, electronic product casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454044.1A CN104309058B (en) | 2014-09-05 | 2014-09-05 | The processing method of a kind of plastic parts and plastic parts, electronic product casing |
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| Publication Number | Publication Date |
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| CN104309058A CN104309058A (en) | 2015-01-28 |
| CN104309058B true CN104309058B (en) | 2016-06-29 |
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| CN201410454044.1A Expired - Fee Related CN104309058B (en) | 2014-09-05 | 2014-09-05 | The processing method of a kind of plastic parts and plastic parts, electronic product casing |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842505B (en) * | 2015-05-15 | 2017-06-06 | 福建省石狮市通达电器有限公司 | A kind of production technology of wood grain enclosing cover |
| CN112476999B (en) * | 2020-12-01 | 2023-02-24 | 宁波均胜群英汽车饰件有限公司 | Real wood gadget is moulded plastics and is added one step of shaping casting mold of polyurethane |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11309736A (en) * | 1998-04-28 | 1999-11-09 | Idemitsu Petrochem Co Ltd | Coated lightweight molded product and its production |
| CN101254639A (en) * | 2007-03-01 | 2008-09-03 | 金利佑兴股份有限公司 | In-mold shoot out moulding method of completed product surface as textiles and completed product thereof |
| CN101672096B (en) * | 2009-09-14 | 2012-05-23 | 姚喜智 | Wood-plastic base composite floor with solid wood panel and manufacturing method thereof |
| CN202210908U (en) * | 2011-05-30 | 2012-05-02 | 黄春樱 | Structure combining composite material with plastic material |
| CN202565590U (en) * | 2012-02-10 | 2012-11-28 | 广东步步高电子工业有限公司 | Shell structure for electronic product |
| CN103722668A (en) * | 2013-12-25 | 2014-04-16 | 浙江师范大学 | Metal-plastic composite mobile phone shell and forming method thereof |
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2014
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Address after: 523878 Changan City, Guangdong Province town on the corner management area Co-patentee after: DONGGUAN HUASHENG ELECTRONIC TECHNOLOGY Co.,Ltd. Patentee after: Guangdong Jinsheng Intelligent Group Co.,Ltd. Address before: 523878 Changan City, Guangdong Province town on the corner management area Co-patentee before: DONGGUAN HUASHENG ELECTRONIC TECHNOLOGY Co.,Ltd. Patentee before: JANUS ( DONGGUAN ) PRECISION COMPONENTS Co.,Ltd. |
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Effective date of registration: 20171208 Address after: 523878 Changan City, Guangdong Province town on the corner management area Patentee after: Guangdong Jinsheng Intelligent Group Co.,Ltd. Address before: 523878 Changan City, Guangdong Province town on the corner management area Co-patentee before: DONGGUAN HUASHENG ELECTRONIC TECHNOLOGY Co.,Ltd. Patentee before: Guangdong Jinsheng Intelligent Group Co.,Ltd. |
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Granted publication date: 20160629 Termination date: 20190905 |