CN104985781A - Double-material injection molding process - Google Patents
Double-material injection molding process Download PDFInfo
- Publication number
- CN104985781A CN104985781A CN201510483817.3A CN201510483817A CN104985781A CN 104985781 A CN104985781 A CN 104985781A CN 201510483817 A CN201510483817 A CN 201510483817A CN 104985781 A CN104985781 A CN 104985781A
- Authority
- CN
- China
- Prior art keywords
- injection
- double
- mold
- described step
- pressure
- Prior art date
- 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.)
- Pending
Links
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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
-
- 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
- B29C2945/76655—Location of control
- B29C2945/76658—Injection unit
- B29C2945/76668—Injection unit barrel
-
- 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
- B29C45/1418—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 the inserts being deformed or preformed, e.g. by the injection pressure
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a double injection molding process. The double-material injection molding process comprises the steps of preparing and pretreating raw materials, heating the raw materials, heating an injection mold, injecting a material barrel A, filling and cooling the mold for the first time, injecting a material barrel B, filling and cooling the mold for the second time and picking up a product after the raw materials are solidified. According to the double-material injection molding process, an electro-magnetic induction technology is adopted for heating, compared with heating through a traditional heating wire, the double-material injection molding process is safer, the potential safety hazard of electric leakage existing in the heating wire is avoided, and compared with heating through the traditional heating wire, the energy conservation is achieved.
Description
Technical field
The present invention relates to a kind of Shooting Technique, be specifically related to a kind of extra quality plastics Shooting Technique.
Background technology
Injection machine has another name called injection (mo(u)lding) machine or injector, it thermoplastic or thermosetting plastics is utilized mould for plastics to make the main former of the plastic products of various shape, be divided into vertical, horizontal, all electric, injection moulding function heating of plastic, high pressure is applied to molten plastic, makes it penetrate and be full of mold cavity.Generally, Shooting Technique refers to a kind of technique like this, first it will prepare the plastic substance needing to carry out being molded, as plastified (plasticising) plastics, then the plastics of plasticate (plasticising) are injected in the die cavity of injection mold, after plastics are hardening, just can obtain the injection moulding module wanted.Shooting Technique of the prior art, particularly resistance electrothermal silk ribbon electricity is adopted to the part of plastic heating, the mica of heat conductivility difference or the magnesia of the moisture absorption is needed to isolate, there is electric leakage potential safety hazard, and in order to safety electric isolation in heating process, adopt mica, heat conductive isolation sheet or thermal conductive ceramic plate to isolate, and the heat conductivility of insulating materials is all undesirable, therefore the thermal efficiency is low, and energy waste is serious.Especially, in double-material injection-molding, increasing heat-insulation layer (material) is needed to cause complex process, cost increase in order to energy-conservation.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of novel dual-material Shooting Technique, make it have more value in industry.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide a kind of double-material injection-molding technique heated by electromagnetic induction technology.
Technical scheme of the present invention is as follows:
A kind of double-material injection-molding technique, is characterized in that, comprise following steps:
S1: raw material prepares and pretreatment, puts into drying baker after being washed by raw material and dries, take out raw material after oven dry;
S2: heating raw materials, is placed into raw material in injecting machine material tube, and adopt electromagnetic induction heater to heat the plastics in injection machine, wherein A barrel is heated to 250 DEG C ~ 265 DEG C, and B barrel is heated to 240 DEG C ~ 255 DEG C
S3: injection mold heats, and the fixed mold in injection mold is heated to 200 DEG C ~ 210 DEG C, moving mold is heated to 220 DEG C ~ 230 DEG C;
S4:A barrel is injected, and divides three phases by A plastic injection heated in barrel in described step S2 in described fixed mold and moving mold;
S5: first time mold filling cooling, after injecting raw material, keeps certain pressure to wait for hot melt raw material cooling curing in described fixed mold and moving mold;
S6:B barrel is injected, and divides three phases by B plastic injection heated in barrel in described step S2 in described step S5;
S7: second time mold filling cooling, after being full of hot melt raw material, keeps certain pressure to wait for hot melt raw material cooling curing in described fixed mold and moving mold;
S8: pickup, pickup after raw material solidification.
Further, the load coil frequency range of electromagnetic induction heater described in described step S2 is 800HZ-500KHZ.
Further, in described step S4, first stage injection pressure is 90bar, and second stage injection pressure is 80bar, and phase III injection pressure is 70bar.
Further, in described step S6, first stage injection pressure is 90bar, and second stage injection pressure is 80bar, and phase III injection pressure is 70bar.
Further, the pressure kept in described step S5 is 80bar, and the time keeping pressure is 2 seconds.
Further, in described step S5, cool time is 5 seconds.
Further, the pressure kept in described step S7 is 80bar, and the time keeping pressure is 5 seconds.
Further, in described step S7, cool time is 15 seconds.
By such scheme, the present invention at least has the following advantages:
(1) the present invention adopts electromagnetic induction technology to heat, and compares traditional electric-heating-wire-heating, safer, avoids the potential safety hazard that heating wire exists electric leakage.
(2) the present invention adopts electromagnetic induction technology to heat, and compares traditional electric-heating-wire-heating more energy-conservation.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of description, be described in detail as follows below with preferred embodiment of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
A kind of double-material injection-molding technique described in a preferred embodiment of the present invention, comprises following steps:
A kind of double-material injection-molding technique, is characterized in that, comprise following steps:
S1: raw material prepares and pretreatment, puts into drying baker after being washed by raw material and dries, take out raw material after oven dry;
S2: heating raw materials, raw material is placed in injecting machine material tube, electromagnetic induction heater is adopted to heat the plastics in injection machine, wherein A barrel is heated to 250 DEG C ~ 265 DEG C, B barrel is heated to 240 DEG C ~ 255 DEG C, and the load coil frequency range of electromagnetic induction heater is 800HZ-500KHZ;
S3: injection mold heats, and the fixed mold in injection mold is heated to 200 DEG C ~ 210 DEG C, moving mold is heated to 220 DEG C ~ 230 DEG C;
S4:A barrel is injected, and point three phases is by A plastic injection heated in barrel in described step S2 in described fixed mold and moving mold, and first stage injection pressure is 90bar, and second stage injection pressure is 80bar, and phase III injection pressure is 70bar;
S5: first time mold filling cooling, after injecting raw material in described fixed mold and moving mold, keep certain pressure to wait for hot melt raw material cooling curing, the pressure of maintenance is 80bar, and the time keeping pressure is 2 seconds, and cool time is 5 seconds;
S6:B barrel is injected, and point three phases is by B plastic injection heated in barrel in described step S2 in described step S5, and first stage injection pressure is 90bar, and second stage injection pressure is 80bar, and phase III injection pressure is 70bar;
S7: second time mold filling cooling, after being full of hot melt raw material in described fixed mold and moving mold, keep certain pressure to wait for hot melt raw material cooling curing, the pressure of maintenance is 80bar, and the time keeping pressure is 5 seconds, and cool time is 15 seconds;
S8: pickup, pickup after raw material solidification.
The above is only the preferred embodiment of the present invention; be not limited to the present invention; should be understood that; for those skilled in the art; under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (8)
1. a double-material injection-molding technique, is characterized in that, comprises following steps:
S1: raw material prepares and pretreatment, puts into drying baker after being washed by raw material and dries, take out raw material after oven dry;
S2: heating raw materials, is placed into raw material in injecting machine material tube, and adopt electromagnetic induction heater to heat the plastics in injection machine, wherein A barrel is heated to 250 DEG C ~ 265 DEG C, and B barrel is heated to 240 DEG C ~ 255 DEG C
S3: injection mold heats, and the fixed mold in injection mold is heated to 200 DEG C ~ 210 DEG C, moving mold is heated to 220 DEG C ~ 230 DEG C;
S4:A barrel is injected, and divides three phases by A plastic injection heated in barrel in described step S2 in described fixed mold and moving mold;
S5: first time mold filling cooling, after injecting raw material, keeps certain pressure to wait for hot melt raw material cooling curing in described fixed mold and moving mold;
S6:B barrel is injected, and divides three phases by B plastic injection heated in barrel in described step S2 in described step S5;
S7: second time mold filling cooling, after being full of hot melt raw material, keeps certain pressure to wait for hot melt raw material cooling curing in described fixed mold and moving mold;
S8: pickup, pickup after raw material solidification.
2. a kind of double-material injection-molding technique according to claim 1, is characterized in that: the load coil frequency range of electromagnetic induction heater described in described step S2 is 800HZ-500KHZ.
3. a kind of double-material injection-molding technique according to claim 1, is characterized in that: in described step S4, and first stage injection pressure is 90bar, and second stage injection pressure is 80bar, and phase III injection pressure is 70bar.
4. a kind of double-material injection-molding technique according to claim 1, is characterized in that: in described step S6, and first stage injection pressure is 90bar, and second stage injection pressure is 80bar, and phase III injection pressure is 70bar.
5. a kind of double-material injection-molding technique according to claim 1, is characterized in that: the pressure kept in described step S5 is 80bar, and the time keeping pressure is 2 seconds.
6. a kind of double-material injection-molding technique according to claim 1, is characterized in that: in described step S5, cool time is 5 seconds.
7. a kind of double-material injection-molding technique according to claim 1, is characterized in that: the pressure kept in described step S7 is 80bar, and the time keeping pressure is 5 seconds.
8. a kind of double-material injection-molding technique according to claim 1, is characterized in that: in described step S7, cool time is 15 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510483817.3A CN104985781A (en) | 2015-08-10 | 2015-08-10 | Double-material injection molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510483817.3A CN104985781A (en) | 2015-08-10 | 2015-08-10 | Double-material injection molding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104985781A true CN104985781A (en) | 2015-10-21 |
Family
ID=54297730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510483817.3A Pending CN104985781A (en) | 2015-08-10 | 2015-08-10 | Double-material injection molding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104985781A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365149A (en) * | 2015-12-11 | 2016-03-02 | 滁州市博康模具塑料有限公司 | ABS (acrylonitrile butadiene styrene) material injection molding process |
| CN106113428A (en) * | 2016-06-24 | 2016-11-16 | 芜湖恒信汽车内饰制造有限公司 | A kind of Shooting Technique of PP LGF30 material fronts module |
| CN106626293A (en) * | 2016-04-29 | 2017-05-10 | 杭州莱源环保科技有限公司 | Injection molding technology of motormeter ring trim |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003297538A (en) * | 2002-03-29 | 2003-10-17 | Matsushita Electric Ind Co Ltd | Electromagnetic induction heating device |
| JP2004291545A (en) * | 2003-03-28 | 2004-10-21 | Gloria Dash:Kk | Heating cylinder heat retaining device in plastic molding machine |
| CN101462340A (en) * | 2009-01-09 | 2009-06-24 | 东莞毅昌模具制造注塑有限公司 | Injection mold for molding flat color matching product and injection moulding method using the mold |
| CN201483735U (en) * | 2009-06-17 | 2010-05-26 | 青岛福润德塑料挤出技术有限公司 | High-efficiency energy-saving molding machine |
| CN201708973U (en) * | 2010-04-29 | 2011-01-12 | 杨启新 | Plastic mechanical energy-saving device |
| CN102470580A (en) * | 2009-12-07 | 2012-05-23 | 三菱重工塑胶科技有限公司 | Injection molding machine for two-material molding |
| CN102601914A (en) * | 2012-02-21 | 2012-07-25 | 北京汽车股份有限公司 | Method for manufacturing handle base of car door |
| CN202878628U (en) * | 2012-10-09 | 2013-04-17 | 天津市永昌焊丝有限公司 | Electromagnetic heating device of injection molding machine |
| CN103213244A (en) * | 2013-04-15 | 2013-07-24 | 江苏洪昌科技股份有限公司 | Double-shot molding process of tail lamp shade |
| CN103522506A (en) * | 2012-07-06 | 2014-01-22 | 成都市思博睿科技有限公司 | Renewable liner type electromagnetic heating injection molding machine barrel |
| CN104191569A (en) * | 2014-08-21 | 2014-12-10 | 浙江世纪华通车业股份有限公司 | Double-material injection mold and using method thereof |
-
2015
- 2015-08-10 CN CN201510483817.3A patent/CN104985781A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003297538A (en) * | 2002-03-29 | 2003-10-17 | Matsushita Electric Ind Co Ltd | Electromagnetic induction heating device |
| JP2004291545A (en) * | 2003-03-28 | 2004-10-21 | Gloria Dash:Kk | Heating cylinder heat retaining device in plastic molding machine |
| CN101462340A (en) * | 2009-01-09 | 2009-06-24 | 东莞毅昌模具制造注塑有限公司 | Injection mold for molding flat color matching product and injection moulding method using the mold |
| CN201483735U (en) * | 2009-06-17 | 2010-05-26 | 青岛福润德塑料挤出技术有限公司 | High-efficiency energy-saving molding machine |
| CN102470580A (en) * | 2009-12-07 | 2012-05-23 | 三菱重工塑胶科技有限公司 | Injection molding machine for two-material molding |
| CN201708973U (en) * | 2010-04-29 | 2011-01-12 | 杨启新 | Plastic mechanical energy-saving device |
| CN102601914A (en) * | 2012-02-21 | 2012-07-25 | 北京汽车股份有限公司 | Method for manufacturing handle base of car door |
| CN103522506A (en) * | 2012-07-06 | 2014-01-22 | 成都市思博睿科技有限公司 | Renewable liner type electromagnetic heating injection molding machine barrel |
| CN202878628U (en) * | 2012-10-09 | 2013-04-17 | 天津市永昌焊丝有限公司 | Electromagnetic heating device of injection molding machine |
| CN103213244A (en) * | 2013-04-15 | 2013-07-24 | 江苏洪昌科技股份有限公司 | Double-shot molding process of tail lamp shade |
| CN104191569A (en) * | 2014-08-21 | 2014-12-10 | 浙江世纪华通车业股份有限公司 | Double-material injection mold and using method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365149A (en) * | 2015-12-11 | 2016-03-02 | 滁州市博康模具塑料有限公司 | ABS (acrylonitrile butadiene styrene) material injection molding process |
| CN106626293A (en) * | 2016-04-29 | 2017-05-10 | 杭州莱源环保科技有限公司 | Injection molding technology of motormeter ring trim |
| CN106113428A (en) * | 2016-06-24 | 2016-11-16 | 芜湖恒信汽车内饰制造有限公司 | A kind of Shooting Technique of PP LGF30 material fronts module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104960136A (en) | Injection molding process | |
| CN103612361B (en) | Injection molding process | |
| CN103934951A (en) | Injection molding process for car bumpers | |
| CN102407589B (en) | Cover plate injection molding technology of ABS (Acrylonitrile Butadiene Styrene) plastic washing machine | |
| CN104960135A (en) | PP plastic injection molding process | |
| CN105014896A (en) | Injection molding process | |
| CN106113428A (en) | A kind of Shooting Technique of PP LGF30 material fronts module | |
| CN103192509A (en) | Injection molding process of PC (poly carbonate) plastic car lamp shade | |
| CN104260301A (en) | Plastic injection moulding technology | |
| CN104985781A (en) | Double-material injection molding process | |
| CN103192483A (en) | Injection molding process of PP (polypropylene) front bumper | |
| CN104494082A (en) | Injection molding process of PP plastic smart toilet seat base plate | |
| CN107803967A (en) | One kind injection high smooth product is without pressurize moulding process | |
| CN105235125A (en) | Poly ethylene (PE) material injection molding process | |
| CN103213244A (en) | Double-shot molding process of tail lamp shade | |
| CN110561704A (en) | Double-injection molding process of plastic product | |
| CN110116482A (en) | A kind of PET thin-walled bottle body Shooting Technique | |
| CN104626469A (en) | Intelligent temperature control type thin-walled injection molding mold | |
| CN105034275A (en) | Injection mold suitable for molding of thermosetting plastic | |
| CN201728801U (en) | Plastic mould hot runner device | |
| CN104669573A (en) | Injection molding method of plastic food steamer | |
| CN106113379A (en) | A kind of Shooting Technique of PA GF30 material radiator bearer | |
| CN106903835A (en) | A kind of injection molding process | |
| CN100595048C (en) | Method for preparing polyphenylene sulfide plate with large plane | |
| CN105563781A (en) | Injection molding process for plastic composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
|
| RJ01 | Rejection of invention patent application after publication |