CN112045925A - Manufacturing method of metal-like plastic product and plastic product - Google Patents
Manufacturing method of metal-like plastic product and plastic product Download PDFInfo
- Publication number
- CN112045925A CN112045925A CN201910492363.4A CN201910492363A CN112045925A CN 112045925 A CN112045925 A CN 112045925A CN 201910492363 A CN201910492363 A CN 201910492363A CN 112045925 A CN112045925 A CN 112045925A
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- China
- Prior art keywords
- metal
- manufacturing
- plastic
- injection
- plastic product
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Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 77
- 239000004033 plastic Substances 0.000 title claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 49
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- 238000001746 injection moulding Methods 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229920006351 engineering plastic Polymers 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 18
- 238000000465 moulding Methods 0.000 claims description 7
- 229920007019 PC/ABS Polymers 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 description 6
- 238000009713 electroplating Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Images
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
- B29C45/0053—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
- B29C45/78—Measuring, controlling or regulating of temperature
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/001—Shaping in several steps
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of plastic product processing, and particularly discloses a manufacturing method of a metal-like plastic product and the plastic product. The manufacturing method of the imitation metal texture plastic product comprises the following steps: s1: performing first injection molding by using a first injection material to form a main body part of the plastic product; s2: performing second injection molding on the second injection material to form the appearance surface of the plastic product; wherein, the first injection material is an engineering plastic material; the second injection material is a metal-like plastic material. The manufacturing method can obtain plastic products with metal-like texture without spraying, is environment-friendly and pollution-free, and has low manufacturing cost; the surface of the plastic product has the texture of imitation metal.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of plastic product processing, in particular to a manufacturing method of a metal-like plastic product and the plastic product.
[ background of the invention ]
With the rapid development of notebook computers and consumer electronic products, the demands of consumers on the consumer electronic products are higher and higher, including the demands on appearance. Therefore, it is a mainstream demand of the market in recent years that the product has a metallic appearance or a metallic texture appearance.
In order to obtain a plastic product with a metal-like appearance, the conventional processing method comprises the following steps: firstly, injection molding is adopted, and then processes of surface spraying, electroplating, in-mold decoration and the like are carried out. However, since the processing procedure is complicated, the manufacturing cost is relatively high; moreover, air pollution can be caused due to volatilization of the solvent in the spraying process; the discharge of heavy metal sewage in the electroplating process can cause serious damage to the ecological environment on which people live.
In recent years, with the development of material technology, the preparation technology of the spraying-free imitation metal texture effect is improved, and a new processing method appears: a plastic product such as a PP composite material (including polypropylene resin, pearl powder and metal powder (gold and silver powder) is injection molded by adopting a metal-like plastic material. However, the manufacturing cost of the plastic product is high by adopting the processing technology; in addition, in the forming process, the welding mark phenomenon can be inevitably generated, and particularly, when a plastic product with a broken hole-based and high-gloss appearance surface is formed, the welding mark is very obvious and is not easy to remove, so that the appearance of the product is seriously influenced.
Therefore, it is necessary to design a method for manufacturing a plastic product with metal-like texture to solve the above problems.
[ summary of the invention ]
The invention aims to provide a method for manufacturing a metal-like plastic product, which can obtain the plastic product with the metal-like texture without spraying, is environment-friendly and pollution-free and has low manufacturing cost.
The invention also aims to provide a plastic product with metal-like texture.
In order to achieve the purpose, the invention adopts the following technical scheme:
a manufacturing method of a metal-like plastic product comprises the following steps:
s1: performing first injection molding by using a first injection material to form a main body part of the plastic product;
s2: performing second injection molding on the second injection material to form the appearance surface of the plastic product;
wherein, the first injection material is an engineering plastic material; the second injection material is a metal-like plastic material.
Preferably, the engineering plastic material adopted in S1 is PC, ABS or PC/ABS.
Preferably, the metal-like plastic material used in S2 includes PA, PC, ABS or PC/ABS.
Preferably, the metal-like plastic material used in S2 further contains 0.3% to 0.5% of a metal sheet; wherein the size of the metal sheet is 1-5 μm.
Preferably, the plastic product is injection molded by a two-shot molding method.
In a preferred embodiment of the present invention, the parameters of the two-shot injection mold used in the injection molding are set as follows: the temperature of the male die is 65-90 ℃; the temperature of the female die is 80-110 ℃; the temperature of the material pipe is 220-290 ℃; the injection speed is 8 mm/s-50 mm/s; the pressure for pressure keeping is 500 Kgf/c-1200 Kgf/c.
Preferably, the double-injection mold used has a flash port; the precision of the sliding block and/or the thimble which participate in the high light appearance surface of the formed product in the double-injection mold is less than 0.03 mm.
Preferably, the method further comprises the following steps:
s3: performing CNC milling on the plastic product obtained in S2.
A plastic product is made by the above manufacturing method.
The invention has the beneficial effects that: the invention relates to a manufacturing method of a metal-like texture plastic product, which comprises the steps of firstly adopting an engineering plastic material to carry out injection molding on a main body part of the plastic product, and then adopting a metal-like plastic material to carry out injection molding on an appearance surface of the plastic product, thereby obtaining the plastic product without spraying the metal-like texture. The manufacturing method can avoid the problem of environmental pollution caused by adopting an electroplating spraying method, is an environment-friendly and pollution-free manufacturing method, is simple and easy to operate, and has low manufacturing cost and high production efficiency; in the manufacturing method, the metal-like plastic material containing 0.3-0.5% of metal sheets is adopted, and the structure of the double-injection mold is improved, so that the problem of weld lines appearing due to accumulation of metal powder in the metal-like plastic material is effectively solved. In addition, the manufacturing method of firstly molding the plastic product and then machining the broken hole on the appearance surface of the plastic product by CNC milling is adopted, so that the problems of flow marks and welding lines formed by the broken hole in the molding process are solved.
[ description of the drawings ]
FIG. 1 is a flowchart illustrating a method for manufacturing a metal-like plastic product according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating another embodiment of a method for manufacturing a metal-like plastic product according to the present invention.
[ detailed description ] embodiments
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1, a method for manufacturing a metal-like plastic product includes the following steps:
s1: performing first injection molding by using a first injection material to form a main body part of the plastic product;
s2: performing second injection molding on the second injection material to form the appearance surface of the plastic product;
wherein, the first injection material is an engineering plastic material; the second injection material is a metal-like plastic material.
Specifically, in the manufacturing method, the engineering plastic material adopted in S1 is PC, ABS or PC/ABS. The metal-like plastic material adopted in S2 contains resin and metal sheets; wherein the resin is PA, PC, ABS or PC/ABS; in the metal-like plastic material, the content of the metal sheet accounts for 0.3-0.5% of the total amount, and the size of the metal sheet is 1-5 μm.
Preferably, the plastic product is injection molded by a two-shot molding method. The glue feeding mode of the used bijection injection molding mold comprises but is not limited to a point glue feeding mode, a side glue feeding mode and a fan-shaped glue feeding mode. Because the material fluidity is the main influence factor of the formed plastic product, considering the characteristics of the metal-like plastic material, the overflow ports can be designed around the product or at the proper positions on the double-injection molding die; in addition, the precision of the sliding block and/or the thimble which participate in the high-gloss appearance surface of the molded product in the double-injection mold is less than 0.03mm, so that the problem of the appearance of a welding line caused by the accumulation of metal powder in the metal-like plastic material is solved. During injection molding, the parameters of the used bijection injection mold are set as follows: the temperature of the male die is 65-90 ℃; the temperature of the female die is 80-110 ℃; the temperature of the material pipe is 220-290 ℃; the injection speed is 8 mm/s-50 mm/s; the pressure for pressure keeping is 500 Kgf/c-1200 Kgf/c.
As another embodiment of the present invention, as shown in fig. 2, the method for manufacturing a metal-like plastic product further includes step S3: performing CNC milling on the plastic product obtained in the above S2 to machine a through hole on the surface of the plastic product. In the embodiment, the broken hole is machined on the surface of the molded plastic product through CNC milling, so that the problems of flow marks and welding lines caused by the broken hole in the molding process are solved.
Therefore, the plastic product with metal-like texture without spraying can be obtained by adopting the manufacturing method provided by the invention, and the plastic product is particularly suitable for manufacturing products such as 3D irregular structural parts, Top panel parts with structures and the like. The manufacturing method can avoid the problem of environmental pollution caused by adopting an electroplating spraying method, is an environment-friendly and pollution-free manufacturing method, is simple and easy to operate, has high production efficiency and low manufacturing cost, and can greatly reduce the cost of the metal-like plastic material of the plastic product compared with the existing method for injection molding the plastic product by completely adopting the metal-like plastic material. The manufacturing method can be popularized and applied to products such as shell parts of consumer electronic products.
The invention also provides a plastic product which is manufactured by the manufacturing method. The surface of the plastic product has better metal-like texture. The technical solution of the present invention is further explained by the following embodiments.
A3D irregular structural component used on a game machine is manufactured by the manufacturing method. When the double-injection mold is adopted for molding, the main body part of the product is molded by adopting the engineering plastic material, and then the appearance surface of the product is molded by utilizing the metal-like plastic material with the aluminum metal sheet. Wherein, the average thickness of the meat on the main body part of the product is 0.8 mm-2.5 mm, and the average thickness of the meat on the appearance surface of the product is 1.0 mm-3.2 mm. The 3D irregular structural member has the advantages of good surface metal texture, no flow marks or welding lines on the surface.
The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the present invention and should not be construed as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A manufacturing method of a metal-like plastic product is characterized by comprising the following steps:
s1: performing first injection molding by using a first injection material to form a main body part of the plastic product;
s2: performing second injection molding on the second injection material to form the appearance surface of the plastic product;
wherein, the first injection material is an engineering plastic material; the second injection material is a metal-like plastic material.
2. The manufacturing method according to claim 1, wherein the engineering plastic material adopted in S1 is PC, ABS or PC/ABS.
3. The manufacturing method according to claim 1, wherein the metal-like plastic material used in S2 contains PA, PC, ABS or PC/ABS.
4. The manufacturing method according to claim 3, wherein the metal-like plastic material used in S2 further comprises 0.3-0.5% of metal sheets; wherein the size of the metal sheet is 1-5 μm.
5. The method of claim 1, wherein the plastic article is injection molded by two-shot molding.
6. The manufacturing method according to claim 5, wherein parameters of a two-shot injection mold used in the injection molding are set as follows: the temperature of the male die is 65-90 ℃; the temperature of the female die is 80-110 ℃; the temperature of the material pipe is 220-290 ℃; the injection speed is 8 mm/s-50 mm/s; the pressure for pressure keeping is 500 Kgf/c-1200 Kgf/c.
7. A method of manufacturing according to claim 6, characterized in that a two-shot injection mould is used having a sprue; the precision of the sliding block and/or the thimble which participate in the high light appearance surface of the formed product in the double-injection mold is less than 0.03 mm.
8. The manufacturing method according to any one of claims 1 to 7, further comprising the step of:
s3: performing CNC milling on the plastic product obtained in S2.
9. A plastic part, characterized in that it is manufactured by the manufacturing method according to any one of claims 1 to 7.
10. A plastic article produced by the production method according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492363.4A CN112045925A (en) | 2019-06-06 | 2019-06-06 | Manufacturing method of metal-like plastic product and plastic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910492363.4A CN112045925A (en) | 2019-06-06 | 2019-06-06 | Manufacturing method of metal-like plastic product and plastic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112045925A true CN112045925A (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910492363.4A Pending CN112045925A (en) | 2019-06-06 | 2019-06-06 | Manufacturing method of metal-like plastic product and plastic product |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242942A (en) * | 2005-08-17 | 2008-08-13 | 株式会社名机制作所 | Forming method of composite molded product and mold device used therefor |
| JP2009154402A (en) * | 2007-12-27 | 2009-07-16 | Oshima Denki Seisakusho:Kk | Film-formed molding and its manufacturing method |
| CN101992646A (en) * | 2009-08-20 | 2011-03-30 | 汉达精密电子(昆山)有限公司 | Method for manufacturing three-dimensional pattern with metal texture and star diamond effect |
| CN103770270A (en) * | 2014-01-02 | 2014-05-07 | 金发科技股份有限公司 | Spraying-free plastic shell forming method with special aesthetic effect |
| CN108000793A (en) * | 2017-11-30 | 2018-05-08 | 东莞迪芬尼电声科技有限公司 | A kind of in-mould injection structure and its processing method for exempting from spraying |
| CN109397619A (en) * | 2018-12-11 | 2019-03-01 | 浙江索格恒实包装有限公司 | Mold, imitative metal tea can and manufacturing process |
-
2019
- 2019-06-06 CN CN201910492363.4A patent/CN112045925A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242942A (en) * | 2005-08-17 | 2008-08-13 | 株式会社名机制作所 | Forming method of composite molded product and mold device used therefor |
| JP2009154402A (en) * | 2007-12-27 | 2009-07-16 | Oshima Denki Seisakusho:Kk | Film-formed molding and its manufacturing method |
| CN101992646A (en) * | 2009-08-20 | 2011-03-30 | 汉达精密电子(昆山)有限公司 | Method for manufacturing three-dimensional pattern with metal texture and star diamond effect |
| CN103770270A (en) * | 2014-01-02 | 2014-05-07 | 金发科技股份有限公司 | Spraying-free plastic shell forming method with special aesthetic effect |
| CN108000793A (en) * | 2017-11-30 | 2018-05-08 | 东莞迪芬尼电声科技有限公司 | A kind of in-mould injection structure and its processing method for exempting from spraying |
| CN109397619A (en) * | 2018-12-11 | 2019-03-01 | 浙江索格恒实包装有限公司 | Mold, imitative metal tea can and manufacturing process |
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