CN106003569A - In-mold bi-color injection molding process and bi-color switch socket applying same - Google Patents
In-mold bi-color injection molding process and bi-color switch socket applying same Download PDFInfo
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- CN106003569A CN106003569A CN201610407082.0A CN201610407082A CN106003569A CN 106003569 A CN106003569 A CN 106003569A CN 201610407082 A CN201610407082 A CN 201610407082A CN 106003569 A CN106003569 A CN 106003569A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 41
- 239000002994 raw material Substances 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 50
- 238000000465 moulding Methods 0.000 claims abstract description 45
- 230000000694 effects Effects 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims description 38
- 239000007924 injection Substances 0.000 claims description 38
- 239000000463 material Substances 0.000 claims description 35
- 229920007019 PC/ABS Polymers 0.000 claims description 21
- 239000002131 composite material Substances 0.000 claims description 21
- 239000012778 molding material Substances 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 8
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000001788 irregular Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 210000003462 vein Anatomy 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
-
- 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
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of 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
-
- 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
- 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
- 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
- B29C2945/76551—Time
- B29C2945/76561—Time duration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/04—Polymers of esters
- B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
- B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
-
- 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
- B29L2031/3443—Switches
Abstract
The invention discloses an in-mold bi-color injection molding process. The molding process comprises the following steps that (1) a bi-color molding machine is adopted, and a first mold with a textured pattern is provided; (2) a first raw material is injection-molded in the first mold to form a first color layer of which at least one surface is provided with texture; (3) the first mold is opened, the first color layer is placed in a second mold, a second raw material is injection-molded in the second mold to form a second color layer, and the second color layer is injection-molded on at least one of the surfaces with texture of the first color layer; and (4) mold opening is conducted, that is, the bi-color molded product with the textured pattern is obtained. The in-mold bi-color injection molding process has the advantages that when the efficiency is improved, and the manufacturing procedure is shortened, the three-dimensional effect and the layering sense of the molded product are improved, and the molded product is more attractive in appearance; and the bi-color switch socket manufactured according to the process is stable in structural performance, simple in assembling process, and easy to dismantle, and can meet the using requirements of different consumers.
Description
Technical field
The invention belongs to injection molding technology field, be specifically related to a kind of bi-color internal injection molding moulding process and apply this work
The double-colored combined socket and switch of skill.
Background technology
Utilize two shot mold, under meeting electric utility combined socket and switch standard-required, design and produce
With switch, the socket product of two shot mold, present stereoeffect from the outward appearance making shaped article
And stereovision, more attractive in appearance, it is used for grabbing the middle and high end combined socket and switch first market opportunities.
Two shot mold, it is common that a kind of work of a kind of richness of superposition more high resilience raw material on rigid matrix
Skill.Often apply to household electrical appliance, double-colored button, toothbrush, handle type electric tool, inner and outer decorative parts of automobile, electricity
Sub-product inner and outer decorative parts etc..For realizing having between injection molding product raw material good associativity, it is generally selected
Physical property is close, and two kinds of raw material shaped articles (as shown in Figure 1) that raw materials melt temperature is farther out.
And convenient source selection is the technique of a kind of richness of superposition more high resilience raw material on rigid matrix, such as patent
CN103660139A discloses a kind of double-shot molding method, by optimizing the technological parameter of double-colored double-shot moulding,
Effectively reduce cubical contraction and the indentation index of injection-molded item;Patent CN102357982A discloses one
The Shooting Technique of two-color plastic product and equipment thereof, disclose a kind of injection-moulding device and limit temperature, shortened life
The product cycle;But technique scheme can not meet electric utility has high arc resistance, high resistant to moulded products
The requirement of combustion property and resistance to ball pressure performance etc..Additionally, patent CN102303394A discloses a kind of double-shot moulding mould
Tool and Shooting Technique thereof, one-shot forming uses PC material, and post forming uses ABS and PC compound, available
In automobile push button;Patent CN103934953A discloses a kind of refrigerator handle injection moulding process, uses double-shot moulding
Technique is also molded rough texture or pattern in the handle body of injection formed, to increase stereoeffect, but
The tool veined double-shot moulding goods of preparation, its raw material associativity on the basis of prior art processes combines
Performance poor, each can not be effectively compatible, causes poor stability, and uses the injection-molded item solid of texture or pattern
Effect and stereovision can not effectively present, it is impossible to meet the demand of present stage high-end consumers.
Summary of the invention
The present invention solves the problems referred to above of the prior art, it is proposed that a kind of bi-color internal injection molding moulding process and
Apply the double-colored combined socket and switch of this technique.
The present invention uses the NEW TYPE OF COMPOSITE raw material meeting formed product appearance requirement: high melted composite transparent PC is former
Material, and with pearl effect (fluorescent effect) composite alloy PC/ABS raw material, these two kinds of raw materials meet electricity
Gas Industry code requirements combines combined socket and switch design standard.The present invention researchs and develops and meets out the double of product requirement
Color injection molding process and the product of dual molding process, improving efficiency, shortening while processing procedure, by color,
Pearl effect presents jointly with regular veins pattern and the first color clear layer, makes the outward appearance of shaped article present
Going out stereoeffect and stereovision, more attractive in appearance, the combined socket and switch dual molding process of the present invention has filled up existing double
Color technique, in the blank in combined socket and switch field, meets different consumer and uses demand.
For achieving the above object, the present invention is by the following technical solutions:
The first aspect of the invention is to provide a kind of bi-color internal injection molding moulding process, described moulding process bag
Include:
(1) dual-color forming machine is used, it is provided that with the first mould of textured pattern;
(2) the first raw material carries out being molded in the first mould veined first chromatograph of at least one side band, injection
Material management and control temperature is 285-310 DEG C;
(3) first mould die sinkings, put into the second mould by the first chromatograph, are molded by the second raw material in the second mould
Being shaped to the second chromatograph, the first veined of chromatograph band at least one side is molded with the second chromatograph, injection molding material management and control
Temperature processed is 230-255 DEG C;
(4) second mould die sinkings, must have the dual-color forming product of textured pattern.
A kind of replacement scheme as bi-color internal injection molding moulding process of the present invention, it is provided that without textured pattern
First mould, provides the second mould with textured pattern simultaneously.
More preferably it is to provide the first mould with textured pattern, and provides with textured pattern simultaneously
The second mould.
Preferably, the textured pattern in described first mould and/or the second mould is regular veins pattern or does not advises
Then textured pattern.
Further, in described step (2), the first raw material is selected from PC material or PMMA material;Described step
Suddenly in (3), the second raw material is selected from PC material, ABS material or PC/ABS material.Wherein, for further
Improve the first raw material and the mechanical performance of the second raw material, postpone service life, optionally to the first raw material and
/ or the second raw material use surfactant be modified, described surfactant use barium oxide, described
The addition of the oxide of barium is the 0.1-0.6wt% of institute's modified feedstock.
Preferably, the first raw material is PC material, and the second raw material is ABS raw material;Or the first raw material is PC
Material, the second raw material is also PC raw material;Or the first raw material is PMMA raw material, the second raw material is PC/ABS
Composite;It is further preferred that the first raw material is PC material, the second raw material is PC/ABS composite.
Further, described PC material is high melt temperature composite transparent PC raw material, and its melt temperature is
280-320 DEG C, resistance to fire resistance is 850 DEG C, and resistance to ball pressure performance is 125 DEG C, electrical strength > 2000, insulation
Resistance > 5M Ω.
Further, described PC/ABS material is the composite alloy with pearl effect or fluorescent effect
PC/ABS raw material, its melt temperature is 230-270 DEG C, and resistance to fire resistance is 50 DEG C, and resistance to ball pressure performance is 70 DEG C,
Electrical strength > 2000, insulation resistance > 5M Ω.
Further, in described step (2), injection control temperature is 295-300 DEG C, and injection time is 20-25s;
Preferably injection controls temperature is 298 DEG C, and injection time is 22-23s.
Further, in described step (3), injection control temperature is 240-245 DEG C, and injection time is 20-25s;
Preferably injection controls temperature is 242 DEG C, and injection time is 20-22s.
Further, carrying out pressurize when also including described step (2), step (3) injection mo(u)lding, one penetrates
Molding dwell pressure is 1150-1700kg/cm3, the dwell time is 1-2s;Two penetrate molding dwell pressure is
350-700kg/cm3, the dwell time is 2.5-5s.
Second aspect of invention is to provide a kind of bi-color internal injection molding moulding process and processes at double-colored combined socket and switch
Application in technique.
The third aspect of the invention is to provide a kind of tool using above-mentioned bi-color internal injection molding moulding process to prepare
The double-colored combined socket and switch of textured pattern.
Further, described textured pattern is regular veins pattern or irregular grain pattern.
Further, described double-colored combined socket and switch includes by the clear layer of PC or PMMA raw material molding, and
The color layer with pearl effect or fluorescent effect by PC, ABS or PC/ABS material feedstock molding.
Further, on described textured pattern opposite face between described clear layer and color layer, described stricture of vagina
Reason pattern is rule or irregular grain pattern.
Preferably, described textured pattern is positioned on the surface that described clear layer is relative with described color layer, or described
Textured pattern is positioned on the surface that described color layer is relative with described clear layer.
More preferably, described rule or irregular grain pattern are positioned at described clear layer and described color layer phase
To surface on, the most described irregular or regular veins pattern is positioned on the outer surface of described clear layer, is formed
Have more the double-deck textured pattern of stereoeffect.
Further, described clear layer is provided with the profile of tooth button of two or two, and described color layer is provided with and institute
State the hole slot of profile of tooth button tabling.
The present invention uses technique scheme, compared with prior art, has the following technical effect that
The injection molding process of the present invention, selects high melt temperature composite transparent PC and (glimmering with pearl effect
Light effect) composite alloy PC/ABS is raw material, uses the Shooting Technique condition after optimizing so that these two kinds
Raw material has stable, reliable binding ability;By between the first color ejection formation and the second color ejection formation
If regular veins pattern or irregular grain pattern, while improving efficiency, shortening processing procedure, can be by colour
Pearl effect presents jointly with regular veins pattern and the first color clear layer, makes the outward appearance of shaped article present
Go out stereoeffect and stereovision, more attractive in appearance;Use socket switch prepared by injection molding process of the present invention, its
Structural behaviour is stable, and assembly technology is simple, easy to assemble, and outward appearance has stereoeffect and a stereovision, appearance looks elegant,
Different consumer can be met and use demand.
Accompanying drawing explanation
Fig. 1 is conventional double-shot moulding material adapted table;
Fig. 2 is the overall schematic of the double-colored combined socket and switch of the present invention;
Fig. 3 is the structural representation of the double-colored combined socket and switch of the present invention.
Detailed description of the invention
Below by specific embodiment, the present invention is carried out detailed and concrete introduction, so that being better understood from this
Bright, but following embodiment is not limiting as the scope of the invention.
The invention provides a kind of bi-color internal injection molding moulding process, use have dual molding process mould and
Dual-color forming machine carrys out molding dual-color forming product, and the dual-color forming facility of employing have rotating disk (rotating shaft), shaping mould
Tool is provided with in including the first mould and the second mould, the first mould and the second mold cavity and advises for shaped article
The then shape of textured pattern, when carrying out injection mo(u)lding, the first mould is arranged on rotating disk, dual molding process bag
Include following steps:
(1) dual-color forming machine is used, it is provided that with the first mould of textured pattern;
(2) the first raw material carries out being molded in the first mould veined first chromatograph of at least one side band, injection
Material management and control temperature is 285-310 DEG C, and injection time is 20-25s;
(3) first mould die sinkings, put into the second mould by the first chromatograph, are molded by the second raw material in the second mould
Being shaped to the second chromatograph, the first veined of chromatograph band at least one side is molded with the second chromatograph, injection molding material management and control
Temperature processed is 230-255 DEG C, and injection time is 20-25s;
(4) second mould die sinkings, must have the dual-color forming product of textured pattern.
In this Shooting Technique the first raw material and the second raw material be generally selected that physical property is close and raw materials melt temperature farther out
Two kinds of raw material shaped articles, to realize having between injection molding product raw material good associativity, such as Fig. 1
Shown conventional double-shot moulding material adapted table.Preferably, the first raw material is PC material, and the second raw material is
ABS raw material;Or the first raw material is PC material, the second raw material is also PC raw material;Or the first raw material is
PMMA raw material, the second raw material is PC/ABS composite;It is further preferred that the first raw material is PC material
Material, the second raw material is PC/ABS composite;Described PC material is that high melt temperature composite transparent PC is former
Material, its melt temperature is 280-320 DEG C, and resistance to fire resistance is 850 DEG C, and resistance to ball pressure performance is 125 DEG C, electrically
Intensity > 2000, insulation resistance > 5M Ω;Described PC/ABS material is to have pearl effect or fluorescent effect
Composite alloy PC/ABS raw material, its melt temperature is 230-270 DEG C, and resistance to fire resistance is 50 DEG C, resistance to ball pressure
Performance is 70 DEG C, electrical strength > 2000, insulation resistance > 5M Ω.
Use the above-mentioned technique of the present invention, while improving efficiency, shortening processing procedure, can be by color bead light efficiency
Fruit presents jointly with regular veins pattern and the first color clear layer, makes the outward appearance of shaped article present solid
Effect and stereovision are more attractive in appearance.
As shown in Figure 2,3, present invention also offers and a kind of use prepared by above-mentioned Shooting Technique to have texture maps
The double-colored combined socket and switch of case, this double-colored combined socket and switch be provided with injection mo(u)lding in the first mould clear layer 1,
Be molded by the color layer 2 of molding in a second mold, between clear layer 1 with color layer 2 relative to surface on have
Regular or irregular grain pattern 3.
Preferably, by the clear layer 1 of PC or PMMA raw material molding, with by PC, ABS or PC/ABS
The color layer 2 with pearl effect or fluorescent effect of material feedstock molding.It is further preferable that use height melted
Temperature composite transparent PC raw material injection mo(u)lding is clear layer 1, uses with pearl effect (fluorescent effect) multiple
Closing alloy PC/ABS raw material injection mo(u)lding is color layer 2, and textured pattern is positioned at described clear layer 1 and color layer
On opposite face between 2, textured pattern is rule or irregular grain pattern, be preferably located in color layer 2 with
On the surface that clear layer 1 is relative.
Application Example 1 preparation has the double-colored combined socket and switch of textured pattern
(1) dual-color forming machine is used, it is provided that with the first mould of textured pattern;
(2) carry out being molded at least in the first mould by the composite transparent PC raw material that melt temperature is 290-300 DEG C
One side carries veined first chromatograph, injection molding material management and control temperature to be 290-295 DEG C, and injection time is 23-24s;
(3) first mould die sinkings, put into the second mould by the first chromatograph, are 240-245 DEG C compound by melt temperature
The injection mo(u)lding in the second mould of alloy PC/ABS raw material is the second chromatograph, the first veined of chromatograph band note
Moulding the second chromatograph, injection molding material management and control temperature is 235-240 DEG C, and injection time is 21-22s;
(4) second mould die sinkings, must have the double-colored combined socket and switch 1 of textured pattern.
Application Example 2 preparation has the double-colored combined socket and switch of textured pattern
(1) dual-color forming machine is used, it is provided that with the first mould of textured pattern;
(2) the composite transparent PC raw material of the oxide modifying of the barium through 0.4wt% is molded in the first mould
For veined first chromatograph of at least one side band, injection molding material management and control temperature is 290-295 DEG C, and injection time is
20-22s;
(3) first mould die sinkings, put into the second mould by the first chromatograph, by composite alloy PC/ABS raw material
In two molds, injection mo(u)lding is the second chromatograph, first veined of chromatograph band injection the second chromatograph, injection molding material pipe
Controlling temperature and be 235-240 DEG C, injection time is 23-25s;
(4) second mould die sinkings, must have the double-colored combined socket and switch 2 of textured pattern.
Application Example 3 preparation has the double-colored combined socket and switch of textured pattern
(1) dual-color forming machine is used, it is provided that with the first mould of textured pattern;
(2) will carry out being molded into veined first chromatograph of at least one side band in the first mould through PMMA raw material,
Injection molding material management and control temperature is 290-295 DEG C, and injection time is 21-22s;
(3) first mould die sinkings, put into the second mould by the first chromatograph, by composite alloy PC/ABS raw material
In two molds, injection mo(u)lding is the second chromatograph, first veined of chromatograph band injection the second chromatograph, injection molding material pipe
Controlling temperature and be 235-240 DEG C, injection time is 20-25s;
(4) second mould die sinkings, must have the double-colored combined socket and switch 3 of textured pattern.
Application Example 4 preparation has the double-colored combined socket and switch of textured pattern
(1) dual-color forming machine is used, it is provided that with the first mould of textured pattern;
(2) will carry out being molded at least one side band veined first in the first mould through composite transparent PC raw material
Chromatograph, injection molding material management and control temperature is 290-295 DEG C, and injection time is 21-22s;
(3) first mould die sinkings, put into the second mould by the first chromatograph, are molded by ABS raw material in the second mould
Being shaped to the second chromatograph, first veined of chromatograph band injection the second chromatograph, injection molding material management and control temperature is
235-240 DEG C, injection time is 20-25s;
(4) second mould die sinkings, must have the double-colored combined socket and switch 4 of textured pattern.
The double-colored combined socket and switch basis respectively with textured pattern that above-mentioned Application Example 1-4 is prepared by performance detection
" GB16915.1-2014 ", " GB2099.1-2008 ", " Q/GL J022001-2015 " normally grasp
Temperature rise before making, resistive load test and fluoroscopic load test, concrete test result such as table 1 below:
Table 1 has each performance test results of double-colored combined socket and switch of textured pattern
From above-mentioned table 1 testing result, using the bi-color internal injection molding moulding process of the present invention, each injection is former
Material performance can be effective compatible, good stability, and uses texture or the injection-molded item stereoeffect of pattern and level
Sense can effectively present;Using the combined socket and switch that this Shooting Technique prepares, its performance not only conforms to
" GB16915.1-2014 ", " GB2099.1-2008 " every test request, and temperature rise before normal operating,
After temperature rise after resistive load test, fluoroscopic load test, far below national standard, temperature rise all requires that (national standard is wanted
Seek≤45K), cause the hidden danger of electrical fires owing to product temperature rise is too high during effective minimizing use.
The bi-color internal injection molding moulding process application on G20 series switch socket product of the present invention at present,
Its product structure stable performance, assembly technology is simple, easy to assemble;The outward appearance of product has stereoeffect and level
Sense, appearance looks elegant, different consumer can be met and use demand;These series of products estimate annual sales amount 100000000 people
Coin, has good economic benefit.
Being described in detail the specific embodiment of the present invention above, but it is intended only as example, the present invention is also
It is not restricted to particular embodiments described above.To those skilled in the art, any the present invention is carried out
Equivalent modifications and substitute the most all among scope of the invention.Therefore, without departing from the spirit of the present invention and model
Enclose lower made impartial conversion and amendment, all should contain within the scope of the invention.
Claims (10)
1. a bi-color internal injection molding moulding process, it is characterised in that described moulding process includes:
(1) dual-color forming machine is used, it is provided that with the first mould of textured pattern;
(2) the first raw material carries out being molded in the first mould veined first chromatograph of at least one side band, injection
Material management and control temperature is 285-310 DEG C;
(3) first mould die sinkings, put into the second mould by the first chromatograph, are molded by the second raw material in the second mould
Being shaped to the second chromatograph, the first veined of chromatograph band at least one side is molded with the second chromatograph, injection molding material management and control
Temperature processed is 230-255 DEG C;
(4) second mould die sinkings, must have the dual-color forming product of textured pattern.
Bi-color internal injection molding moulding process the most according to claim 1, it is characterised in that described step (2)
In the first raw material selected from PC material or PMMA material.
Bi-color internal injection molding moulding process the most according to claim 1, it is characterised in that described step (3)
In the second raw material selected from PC material, ABS material or PC/ABS material.
4. according to the bi-color internal injection molding moulding process described in Claims 2 or 3, it is characterised in that described PC
Material is high melt temperature composite transparent PC raw material, and its melt temperature is 280-320 DEG C.
Bi-color internal injection molding moulding process the most according to claim 3, it is characterised in that described PC/ABS
Material is the composite alloy PC/ABS raw material with pearl effect or fluorescent effect, and its melt temperature is
230-270℃。
Bi-color internal injection molding moulding process the most according to claim 1, it is characterised in that described step (2)
Middle injection controls temperature and is 295-300 DEG C, and injection time is 20-25s.
Bi-color internal injection molding moulding process the most according to claim 1, it is characterised in that described step (3)
Middle injection controls temperature and is 240-245 DEG C, and injection time is 20-25s.
8. the bi-color internal injection molding moulding process as described in any one of claim 1-7 processes work at double-colored combined socket and switch
Application in skill.
9. what prepared by the bi-color internal injection molding moulding process as described in any one of claim 1-7 has textured pattern
Double-colored combined socket and switch.
Double-colored combined socket and switch the most according to claim 9, it is characterised in that described double-colored combined socket and switch includes
By the clear layer of PC or PMMA raw material molding, with by PC, ABS or PC/ABS material feedstock molding
There is the color layer of pearl effect or fluorescent effect.
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CN108017893A (en) * | 2017-11-06 | 2018-05-11 | 广东欧珀移动通信有限公司 | Plastics for in-mould injection and preparation method thereof |
CN108621346A (en) * | 2018-04-24 | 2018-10-09 | 惠州市泰信精密部件有限公司 | Mould preparation method, mobile phone pair camera bracket and preparation method thereof |
CN111961242A (en) * | 2020-07-10 | 2020-11-20 | 伯恩光学(惠州)有限公司 | Colored plastic shell and preparation method thereof |
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