CN104494083A - Preparation method of injection molded control panel and injection molded control panel - Google Patents
Preparation method of injection molded control panel and injection molded control panel Download PDFInfo
- Publication number
- CN104494083A CN104494083A CN201510022084.3A CN201510022084A CN104494083A CN 104494083 A CN104494083 A CN 104494083A CN 201510022084 A CN201510022084 A CN 201510022084A CN 104494083 A CN104494083 A CN 104494083A
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- Prior art keywords
- control panel
- preparation
- injection
- injection moulding
- materials
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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.)
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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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
-
- 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
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding 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
- B29C45/78—Measuring, controlling or regulating of temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- 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
- B29C2945/76498—Pressure
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Abstract
The invention provides a preparation method of an injection molded control panel, for solving the problems that the preparation process of the injection molded control pane in the prior art is not environment-friendly in material, low in surface smoothness of finished products, and excessive in shrinkage ratio of finished products. The preparation method comprises the following steps of: preparing materials, mixing materials, drying materials, setting temperature of a water-cooling mold, injection molding, maintaining pressure and opening the mold. According to the preparation method, environment-friendly materials, enhanced PP materials, are adopted as the main materials, so that the produced injection molded control panel is more ageing resistant and has better insulating performance; meanwhile, fire retardant and glass fiber are added in the enhanced PP materials, so that the surface smoothness of the finished products is further improved, and the material structural strength is further enhanced than the prior art; in addition, temperature of an injection barrel of an injection molding machine selected by the preparation method is monitored in a five-stage manner, which can further reduce degradation of the raw materials in a molten state than the three-stage monitoring in the prior art, thus greatly reduce loss of materials cost and being free of impurities on the surfaces of the finished products.
Description
Technical field
The present invention relates to injection moulding control panel manufacturing technology field, be specifically related to a kind of preparation method and injection moulding control panel of injection moulding control panel.
Background technology
Injection moulding control panel of the prior art, makes material usually not environmentally, and size and integral thickness excessive, also cause cost of manufacture too high while adding product weight further, the technical problems such as inconvenient are carried in transport.In addition, because the material of injection moulding control panel of the prior art is chosen as polyvinyl chloride usually, its insulating properties is relatively weak, and mould is consuming time longer in shaping cooling, the mould used does not arrange water-cooling system, and cause the shrinkage ratio of injecting products excessive, yield rate is low.Therefore, research and development a kind of being applicable to, strengthens PP material for main material with environment-friendly materials, and improve injection product surface fineness further, the preparation method of the injection moulding control panel that injecting products shrinkage ratio is reduced becomes a kind of required.
Summary of the invention
For this reason, the invention provides a kind of preparation method of injection moulding control panel, solve the material that exists in injection moulding control panel manufacture craft in prior art not environmentally, the technical problem that finished surface fineness product shrinkage ratio that is low and finished product is too high.
For this reason, the invention provides the preparation method of injection moulding control panel, described method is divided into following steps: batching: granular enhancings PP expected, glass fibre and fire retardant be mixed with panel raw material by following mass fraction: enhancing PP expect 100 parts, 15 parts, glass fibre, fire retardant 2 parts; Batch mixing: in mixer, described panel raw material are uniformly mixed; Dry material: sucked in materal drier barrel by the described panel raw material mixed, baking material temperature degree is set as 120 DEG C, the baking material time is set as 3 hours; Setting water cooling mold parameter: the hydraulic pressure of the cooling recirculation system of dynamic model and cover half is set as 20bar respectively; All hot flow path temperature are all set as 220 DEG C; The mould Wen Jun of described dynamic model and cover half is set as 30 DEG C; By described dynamic model and cover half matched moulds; Injection moulding: the described panel raw material be baked are delivered in injection machine, the standby pressure of 5bar is applied in advance in syringe, inject described panel raw material to described dynamic model and cover half die cavity with the injection pressure of 85bar, injection speed is all set as 65mm/s, and inject time is all set as 5 seconds simultaneously; Barrel will be injected according to feedstock direction, and prolong its length and be divided into 5 sections, and successively the mean temperature in every section is set as: 215 DEG C, 220 DEG C, 230 DEG C, 220 DEG C and 215 DEG C; Pressure keeps: described injection speed is set as 70mm/s, the pressure in described dynamic model and cover half is remained on 75bar, and continues 3 seconds; Die sinking: continue cooling after 40 seconds, die sinking pressure is set as 60bar, opens described dynamic model and obtain described control panel finished product.
According to an embodiment of the invention, wherein, in described baking material step, need raw-material for described panel moisture content to be reduced to be no more than 0.5%.
According to an embodiment of the invention, wherein, described injection machine is HDJS538 servo Automatic Control injection machine.
According to an embodiment of the invention, wherein, the compression ratio of described injection machine is 3.5.
According to an embodiment of the invention, wherein, described dynamic model and cover half adopt semi_thermal runner running gate system, and namely open hot flow path turns cold runner and pours into a mould, and sprue is located at hot nozzle inside.
According to an embodiment of the invention, wherein, described dynamic model and cover half all adopt Angle Pin side core-pulling and hydraulic pressure side core-pulling.
For this reason, the invention provides a kind of injection moulding control panel, described injection moulding control panel is made by the preparation method of foregoing injection moulding control panel.
The present invention strengthens PP material as main material by selecting environment-friendly materials, substitutes polyvinyl chloride of the prior art, makes the injection moulding control panel produced more ageing-resistant, and have good insulating properties; Meanwhile, the present invention by adding fire retardant and glass fibre in enhancing PP material, and the surface smoothness of finished product is further improved compared to existing technology, and its material structural strength is further strengthened compared to existing technology; In addition, the injection barrel of the injection machine selected by the present invention carries out 5 sections of monitoring to temperature, the 3 sections of monitoring adopted compared to existing technology can reduce raw material degraded in the molten state further, drastically reduce the area the loss of material cost, finished surface free from admixture.
Further, dynamic model of the present invention and cover half adopt semi_thermal runner running gate system, although there is the part mouth of a river, a hot nozzle may correspond to multiple cast gate, thus takes into account conservation and cost.
Further, the method that dynamic model of the present invention and cover half all adopt Angle Pin side core-pulling and hydraulic pressure side core-pulling to combine, ensures that moulding can the demoulding smoothly.
Further, the invention provides a kind of injection moulding control panel obtained by above-mentioned manufacture craft, the injection moulding control panel of the polyvinyl chloride material compared to existing technology, there is material environment friendly, fabrication cycle is short, good insulating, the advantage that finished product shrinkage ratio is low and lustrous surface is good.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the preparation flow figure of the preparation method of injection moulding control panel of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the specific embodiment of the present invention is described in further detail.Following examples only for illustration of the present invention, but can not be used for limiting the scope of the invention.
Without loss of generality, shown in Fig. 1, the invention provides a kind of preparation method of injection moulding control panel, described method is divided into following steps:
Batching: granular enhancings PP is expected, glass fibre and fire retardant be mixed with panel raw material by following mass fraction: enhancing PP expect 100 parts, 15 parts, glass fibre, fire retardant 2 parts;
Batch mixing: in mixer, described panel raw material are uniformly mixed;
Dry material: sucked in materal drier barrel by the described panel raw material mixed, baking material temperature degree is set as 120 DEG C, the baking material time is set as 3 hours;
Setting water cooling mold parameter: the hydraulic pressure of the cooling recirculation system of dynamic model and cover half is set as 20bar respectively; All hot flow path temperature are all set as 220 DEG C; The mould Wen Jun of described dynamic model and cover half is set as 30 DEG C; By described dynamic model and cover half matched moulds;
Injection moulding: the described panel raw material be baked are delivered in injection machine, the standby pressure of 5bar is applied in advance in syringe, inject described panel raw material to described dynamic model and cover half die cavity with the injection pressure of 85bar, injection speed is all set as 65mm/s, and inject time is all set as 5 seconds simultaneously; Barrel will be injected according to feedstock direction, and prolong its length and be divided into 5 sections, and successively the mean temperature in every section is set as: 215 DEG C, 220 DEG C, 230 DEG C, 220 DEG C and 215 DEG C;
Pressure keeps: described injection speed is set as 70mm/s, the pressure in described dynamic model and cover half is remained on 75bar, and continues 3 seconds;
Die sinking: continue cooling after 40 seconds, die sinking pressure is set as 60bar, opens described dynamic model and obtain described control panel finished product.
The present invention strengthens PP material as main material by selecting environment-friendly materials, substitutes polyvinyl chloride of the prior art, makes the injection moulding control panel produced more ageing-resistant, and have good insulating properties; Meanwhile, the present invention by adding fire retardant and glass fibre in enhancing PP material, and the surface smoothness of finished product is further improved compared to existing technology, and its material structural strength is further strengthened compared to existing technology.
Further, in an optimal technical scheme of the present embodiment, dry in material step, need raw-material for described panel moisture content to be reduced to be no more than 0.5%, make the outward appearance of finished product and intensity more superior.
Further, in an optimal technical scheme of the present embodiment, injection machine is HDJS538 servo Automatic Control injection machine, and its compression ratio is set as 3.5.
Further, in an optimal technical scheme of the present embodiment, dynamic model and cover half adopt semi_thermal runner running gate system, namely open hot flow path turns cold runner and pours into a mould, and sprue is located at hot nozzle inside, although there is the part mouth of a river, a hot nozzle may correspond to multiple cast gate, thus takes into account conservation and cost.
Further, in an optimal technical scheme of the present embodiment, the method that dynamic model and cover half all adopt Angle Pin side core-pulling and hydraulic pressure side core-pulling to combine, ensures that moulding can the demoulding smoothly.
The present invention is for solving injection moulding control panel in prior art, make material usually not environmentally, and size and integral thickness excessive, also cause cost of manufacture too high while adding product weight further, the technical problems such as inconvenient are carried in transport, a kind of injection moulding control panel is also provided, described injection moulding control panel is made by above-mentioned manufacture craft, and have material environment friendly, fabrication cycle is short, good insulating, the advantage that finished product shrinkage ratio is low and lustrous surface is good.
More than inventing is only the preferred embodiment of the present invention; it should be pointed out 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.
It should be noted, the present invention will be described instead of limit the invention for above-described embodiment, and those skilled in the art can design alternative embodiment when not departing from the scope of claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and does not arrange element in the claims or step.Word "a" or "an" before being positioned at element is not got rid of and be there is multiple such element.The present invention can by means of including the hardware of some different elements and realizing by means of the computer of suitably programming.In the unit claim listing some devices, several in these devices can be carry out imbody by same hardware branch.Word first, second and third-class use do not represent any order.
Claims (7)
1. a preparation method for injection moulding control panel, described method is divided into following steps:
Batching:
Granular enhancing PP is expected, glass fibre and fire retardant is mixed with panel raw material by following mass fraction: strengthen PP expect 100 parts, 15 parts, glass fibre, fire retardant 2 parts;
Batch mixing:
In mixer, described panel raw material are uniformly mixed;
Dry material:
Sucked in materal drier barrel by the described panel raw material mixed, baking material temperature degree is set as 120 DEG C, the baking material time is set as 3 hours;
Setting water cooling mold parameter:
The hydraulic pressure of the cooling recirculation system of dynamic model and cover half is set as 20bar respectively; All hot flow path temperature are all set as 220 DEG C; The mould Wen Jun of described dynamic model and cover half is set as 30 DEG C; By described dynamic model and cover half matched moulds;
Injection moulding:
The described panel raw material be baked are delivered in injection machine, the standby pressure of 5bar is applied in advance in syringe, inject described panel raw material to described dynamic model and cover half die cavity with the injection pressure of 85bar, injection speed is all set as 65mm/s, and inject time is all set as 5 seconds simultaneously; Barrel will be injected according to feedstock direction, and prolong its length and be divided into 5 sections, and successively the mean temperature in every section is set as: 215 DEG C, 220 DEG C, 230 DEG C, 220 DEG C and 215 DEG C;
Pressure keeps:
Described injection speed is set as 70mm/s, the pressure in described dynamic model and cover half is remained on 75bar, and continue 3 seconds;
Die sinking:
Continue cooling after 40 seconds, die sinking pressure is set as 60bar, opens described dynamic model and obtain described control panel finished product.
2. the preparation method of injection moulding control panel according to claim 1, is characterized in that, in described baking material step, needs raw-material for described panel moisture content to be reduced to be no more than 0.5%.
3. the preparation method of injection moulding control panel according to claim 1, is characterized in that, described injection machine is HDJS538 servo Automatic Control injection machine.
4. the preparation method of injection moulding control panel according to claim 3, is characterized in that, the compression ratio of described injection machine is 3.5.
5. the preparation method of injection moulding control panel according to claim 1, is characterized in that, described dynamic model and cover half adopt semi_thermal runner running gate system, and namely open hot flow path turns cold runner and pours into a mould, and sprue is located at hot nozzle inside.
6. the preparation method of injection moulding control panel according to claim 1, is characterized in that, described dynamic model and cover half all adopt Angle Pin side core-pulling and hydraulic pressure side core-pulling.
7. an injection moulding control panel, is characterized in that, the preparation method of described injection moulding control panel injection moulding control panel according to any one of claim 1 ~ 6 makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022084.3A CN104494083A (en) | 2015-01-16 | 2015-01-16 | Preparation method of injection molded control panel and injection molded control panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510022084.3A CN104494083A (en) | 2015-01-16 | 2015-01-16 | Preparation method of injection molded control panel and injection molded control panel |
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| CN104494083A true CN104494083A (en) | 2015-04-08 |
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| CN201510022084.3A Pending CN104494083A (en) | 2015-01-16 | 2015-01-16 | Preparation method of injection molded control panel and injection molded control panel |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563781A (en) * | 2015-12-30 | 2016-05-11 | 苏州乔布注塑工业有限公司 | Injection molding process for plastic composite material |
| CN106335156A (en) * | 2016-09-29 | 2017-01-18 | 广西大学 | Injection molding process for PP material bumper |
| CN107756736A (en) * | 2017-11-15 | 2018-03-06 | 成都美益达医疗科技有限公司 | A kind of crystalline material injection self-reinforcing process and equipment |
| CN107932820A (en) * | 2017-11-23 | 2018-04-20 | 安徽清龙泉印刷科技股份有限公司 | One kind injection control panel and its Shooting Technique |
| CN108676311A (en) * | 2018-04-03 | 2018-10-19 | 南通加隆塑胶有限公司 | A kind of automobile control panel and preparation method thereof |
| CN109109258A (en) * | 2017-06-26 | 2019-01-01 | 湖南雨创环保工程有限公司 | A kind of formula and preparation process of rainwater water storage module |
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| CN102358792A (en) * | 2011-08-09 | 2012-02-22 | 余姚科德塑料模具厂 | Lithium-ion power battery flame retardant plastic shell and manufacturing method thereof |
| CN102417656A (en) * | 2011-11-23 | 2012-04-18 | 安徽宜万丰电器有限公司 | Wiring harness protective plate and manufacturing method thereof |
| CN102643478A (en) * | 2012-04-16 | 2012-08-22 | 上海金发科技发展有限公司 | Halogen-free flame-retarding long glass fiber reinforced polypropylene material and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563781A (en) * | 2015-12-30 | 2016-05-11 | 苏州乔布注塑工业有限公司 | Injection molding process for plastic composite material |
| CN106335156A (en) * | 2016-09-29 | 2017-01-18 | 广西大学 | Injection molding process for PP material bumper |
| CN109109258A (en) * | 2017-06-26 | 2019-01-01 | 湖南雨创环保工程有限公司 | A kind of formula and preparation process of rainwater water storage module |
| CN107756736A (en) * | 2017-11-15 | 2018-03-06 | 成都美益达医疗科技有限公司 | A kind of crystalline material injection self-reinforcing process and equipment |
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| CN107932820A (en) * | 2017-11-23 | 2018-04-20 | 安徽清龙泉印刷科技股份有限公司 | One kind injection control panel and its Shooting Technique |
| CN108676311A (en) * | 2018-04-03 | 2018-10-19 | 南通加隆塑胶有限公司 | A kind of automobile control panel and preparation method thereof |
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Application publication date: 20150408 |