CN103587025A - Process for molding butadiene-component-containing plastic thin-wall product - Google Patents
Process for molding butadiene-component-containing plastic thin-wall product Download PDFInfo
- Publication number
- CN103587025A CN103587025A CN201310479847.8A CN201310479847A CN103587025A CN 103587025 A CN103587025 A CN 103587025A CN 201310479847 A CN201310479847 A CN 201310479847A CN 103587025 A CN103587025 A CN 103587025A
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- China
- Prior art keywords
- temperature
- plastic
- mold
- wall product
- plastic thin
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000000465 moulding Methods 0.000 title abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000012778 molding material Substances 0.000 claims abstract description 6
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 38
- 239000000203 mixture Substances 0.000 claims description 18
- 238000004512 die casting Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000005266 casting Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000010992 reflux Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
Images
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
- B29C45/0001—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
- B29C2045/0094—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor injection moulding of small-sized articles, e.g. microarticles, ultra thin articles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a process for molding a butadiene-component-containing plastic thin-wall product, which comprises the following steps: feeding a loose granular or powdery molding material from a hopper of an injection molding machine into a high-temperature machine barrel, heating to melt and perform plastification, and ensuring that the material becomes a molten mass in a viscous flow state; under high-pressure push action of a plunger or screw, injecting into the cavity of a closed mold having a low temperature via a mold casting system through a nozzle at the front end of the machine barrel; and cooling while keeping the temperature, then opening the mold, and taking out the plastic product from the cavity, wherein in this process, the plastic product goes through the importance stages of plastification, mold filling, pressure keeping, refluxing, cooling and demolding, the mold fixing temperature is set at 80-90 DEG C, the mold moving temperature is set at 40-50 DEG C, the injection pressure is set at 150 MPa, and the kept pressure is set at 80 MPa, and the rotation speed of the screw is 40-50 r/min. According to the invention, the process is high in efficiency and low in consumption, the plastic product can be molded and demolded smoothly, the wall thickness is uniform, and the plastic part is simple in structure and favorable in toughness and shock resistance.
Description
Technical field
The present invention relates to Shooting Technique, particularly a kind of plastic thin wall product forming process containing butadiene composition.
Background technology
Butadiene has good toughness, the feature that impact resistance is strong, and moulding process is had relatively high expectations, otherwise affects the mechanical performance of finished product product, in order to meet the performance of thin-wall part, need to strictly control production technology.
Summary of the invention
The object of the invention is in order to improve toughness and the impact resistance of thin-wall part, spy provides a kind of plastic thin wall product forming process containing butadiene composition.
The invention provides a kind of plastic thin wall product forming process containing butadiene composition, it is characterized in that: the described plastic thin wall product forming process containing butadiene composition, first loose granular or powdery molding materials is sent into heating and melting plasticizing in the machine barrel of high temperature from the hopper of injection machine, make it to become viscosity flow state melt, then under the pushed at high pressure of plunger or screw rod, nozzle by machine barrel front end is injected and is entered in the close die die cavity that temperature is lower through die casting system, after pressurize is cooling, opening mold is deviate from plastic part from die cavity;
In this process, plastic has experienced plasticizing, mold filling, pressurize, refluence, cooling, demoulding important stage, and cover half temperature setting is set to 80～90 ℃, dynamic model temperature setting is set to 40～50 ℃, injection pressure is set as 150MPa, and dwell pressure is set as 80MPa, and screw speed is 40～50r/min.
Walled thickness is 0.8～2 millimeter.
The machine barrel of described high temperature, temperature is 190～230 ℃.
Described nozzle temperature is controlled at 230～240 ℃.
Advantage of the present invention:
Plastic thin wall product forming process containing butadiene composition of the present invention, efficient low-consume, and make the smooth moulding of plastic and the demoulding, and wall thickness is even, and plastic component structure is simple, and toughness and impact resistance are good.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is the plastic thin wall product forming process schematic flow sheet containing butadiene composition.
The specific embodiment
Embodiment 1
The present embodiment provides a kind of plastic thin wall product forming process containing butadiene composition, it is characterized in that: the described plastic thin wall product forming process containing butadiene composition, first loose granular or powdery molding materials is sent into heating and melting plasticizing in the machine barrel of high temperature from the hopper of injection machine, make it to become viscosity flow state melt, then under the pushed at high pressure of plunger or screw rod, nozzle by machine barrel front end is injected and is entered in the close die die cavity that temperature is lower through die casting system, after pressurize is cooling, opening mold is deviate from plastic part from die cavity,
In this process, plastic has experienced plasticizing, mold filling, pressurize, refluence, cooling, demoulding important stage, and cover half temperature setting is set to 80 ℃, dynamic model temperature setting is set to 40 ℃, injection pressure is set as 150MPa, and dwell pressure is set as 80MPa, and screw speed is 40r/min.
Walled thickness is 0.8 millimeter.
The machine barrel of described high temperature, temperature is 190 ℃.
Described nozzle temperature is controlled at 230 ℃.
Embodiment 2
The present embodiment provides a kind of plastic thin wall product forming process containing butadiene composition, it is characterized in that: the described plastic thin wall product forming process containing butadiene composition, first loose granular or powdery molding materials is sent into heating and melting plasticizing in the machine barrel of high temperature from the hopper of injection machine, make it to become viscosity flow state melt, then under the pushed at high pressure of plunger or screw rod, nozzle by machine barrel front end is injected and is entered in the close die die cavity that temperature is lower through die casting system, after pressurize is cooling, opening mold is deviate from plastic part from die cavity,
In this process, plastic has experienced plasticizing, mold filling, pressurize, refluence, cooling, demoulding important stage, and cover half temperature setting is set to 80 ℃, dynamic model temperature setting is set to 40 ℃, injection pressure is set as 150MPa, and dwell pressure is set as 80MPa, and screw speed is 50r/min.
Walled thickness is 1 millimeter.
The machine barrel of described high temperature, temperature is 200 ℃.
Described nozzle temperature is controlled at 230 ℃.
Embodiment 3
The present embodiment provides a kind of plastic thin wall product forming process containing butadiene composition, it is characterized in that: the described plastic thin wall product forming process containing butadiene composition, first loose granular or powdery molding materials is sent into heating and melting plasticizing in the machine barrel of high temperature from the hopper of injection machine, make it to become viscosity flow state melt, then under the pushed at high pressure of plunger or screw rod, nozzle by machine barrel front end is injected and is entered in the close die die cavity that temperature is lower through die casting system, after pressurize is cooling, opening mold is deviate from plastic part from die cavity,
In this process, plastic has experienced plasticizing, mold filling, pressurize, refluence, cooling, demoulding important stage, and cover half temperature setting is set to 90 ℃, dynamic model temperature setting is set to 50 ℃, injection pressure is set as 150MPa, and dwell pressure is set as 80MPa, and screw speed is 50r/min.
Walled thickness is 2 millimeters.
The machine barrel of described high temperature, temperature is 230 ℃.
Described nozzle temperature is controlled at 240 ℃.
Claims (4)
1. the plastic thin wall product forming process containing butadiene composition, it is characterized in that: the described plastic thin wall product forming process containing butadiene composition, first loose granular or powdery molding materials is sent into heating and melting plasticizing in the machine barrel of high temperature from the hopper of injection machine, make it to become viscosity flow state melt, then under the pushed at high pressure of plunger or screw rod, nozzle by machine barrel front end is injected and is entered in the close die die cavity that temperature is lower through die casting system, after pressurize is cooling, opening mold is deviate from plastic part from die cavity;
In this process, plastic has experienced plasticizing, mold filling, pressurize, refluence, cooling, demoulding important stage, and cover half temperature setting is set to 80～90 ℃, dynamic model temperature setting is set to 40～50 ℃, injection pressure is set as 150MPa, and dwell pressure is set as 80MPa, and screw speed is 40～50r/min.
2. according to the plastic thin wall product forming process containing butadiene composition claimed in claim 1, it is characterized in that: walled thickness is 0.8～2 millimeter.
3. according to the plastic thin wall product forming process containing butadiene composition claimed in claim 1, it is characterized in that: the machine barrel of described high temperature, temperature is 190～230 ℃.
4. according to the plastic thin wall product forming process containing butadiene composition claimed in claim 1, it is characterized in that: described nozzle temperature is controlled at 230～240 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479847.8A CN103587025A (en) | 2013-10-15 | 2013-10-15 | Process for molding butadiene-component-containing plastic thin-wall product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479847.8A CN103587025A (en) | 2013-10-15 | 2013-10-15 | Process for molding butadiene-component-containing plastic thin-wall product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103587025A true CN103587025A (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310479847.8A Pending CN103587025A (en) | 2013-10-15 | 2013-10-15 | Process for molding butadiene-component-containing plastic thin-wall product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103587025A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878924A (en) * | 2014-03-27 | 2014-06-25 | 苏州益群模具有限公司 | High-pressure injection molding method |
| CN109262945A (en) * | 2018-10-18 | 2019-01-25 | 长兴海普机械科技有限公司 | A kind of operating method of automatic shaping output integrated injection molding machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4844405A (en) * | 1987-01-26 | 1989-07-04 | Acebo Company | Injection molding of thin-walled plastic products |
| CN1487877A (en) * | 2001-01-26 | 2004-04-07 | Mould and method for injection-compression moulding | |
| CN101439575A (en) * | 2008-12-26 | 2009-05-27 | 北京东明兴业科技有限公司 | Injection molding process of thin wall plastic products |
| EP2145746A1 (en) * | 2008-07-16 | 2010-01-20 | I-Pac Patents B.V. | Method of manufacturing a plastic package in a mold |
| CN101712789A (en) * | 2009-12-25 | 2010-05-26 | 北京中拓机械有限责任公司 | Fiber reinforcement injection molding product and injection molding method thereof |
-
2013
- 2013-10-15 CN CN201310479847.8A patent/CN103587025A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4844405A (en) * | 1987-01-26 | 1989-07-04 | Acebo Company | Injection molding of thin-walled plastic products |
| CN1487877A (en) * | 2001-01-26 | 2004-04-07 | Mould and method for injection-compression moulding | |
| EP2145746A1 (en) * | 2008-07-16 | 2010-01-20 | I-Pac Patents B.V. | Method of manufacturing a plastic package in a mold |
| CN101439575A (en) * | 2008-12-26 | 2009-05-27 | 北京东明兴业科技有限公司 | Injection molding process of thin wall plastic products |
| CN101712789A (en) * | 2009-12-25 | 2010-05-26 | 北京中拓机械有限责任公司 | Fiber reinforcement injection molding product and injection molding method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878924A (en) * | 2014-03-27 | 2014-06-25 | 苏州益群模具有限公司 | High-pressure injection molding method |
| CN109262945A (en) * | 2018-10-18 | 2019-01-25 | 长兴海普机械科技有限公司 | A kind of operating method of automatic shaping output integrated injection molding machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20140219 |