CN108582632A - A kind of production technology of polypropylene product and its application - Google Patents
A kind of production technology of polypropylene product and its application Download PDFInfo
- Publication number
- CN108582632A CN108582632A CN201711323614.3A CN201711323614A CN108582632A CN 108582632 A CN108582632 A CN 108582632A CN 201711323614 A CN201711323614 A CN 201711323614A CN 108582632 A CN108582632 A CN 108582632A
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- CN
- China
- Prior art keywords
- shifting formwork
- product
- mold
- solid model
- production technology
- 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.)
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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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
- B29C44/3426—Heating by introducing steam in the mould
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of production technology of polypropylene product and its applications, the technique includes preparing the mold to match with shape of product, with the polypropylene material of curing is filled up to the mold cavity and molding the step of, the mold includes solid model and shifting formwork, the shifting formwork is controllably coordinated with the solid model by driving mechanism, when polypropylene fills up the step of the cavity of the mold and molding, sequentially pass through mold to preheat, charging, feed back, mould secondary preheats, solid model is crosscutting, hot briquetting, product approval, water cooling, it vacuumizes and finally demoulds, wherein, in the rear end of the crosscutting process of solid model, the process of shifting formwork mirror surface treatment is set, the shifting formwork passes through steam heating temperature to 180 DEG C ~ 200 DEG C and tight mold, and shifting formwork bears pressure as 10 ~ 13Kg/cm2 after being passed through steam at this time.The present invention so that PP GRANULES is completely enclosed with particle combination gap by high-temperature molding, mirror surface treatment technology, and then improves product quality.
Description
Technical field
The present invention relates to chemical fields, and in particular to a kind of production technology of polypropylene product and its application.
Background technology
In the prior art, EPP (Expandable Polypropylen, you can hair property polypropylene) is a kind of physical property
Excellent, stable chemical performance easily recycles tractable novel high-performance resistance to compression buffering heat-barrier material.EPP product moldings are generally
It is using package forming machine and to be equipped with corresponding mold to be divided to two classes, one kind, directly produces packaging product, is widely used in electric appliance
With the damping packaging of light industrial goods, the fields such as fresh-keeping transport and casting of fruit and marine product, manufacture toy can be used for
Deng.Another kind of is after cutting into plank, to be used as building and decoration using the rectangular foam product of sheet-forming machine production large volume
Material, municipal works etc..
It has now been found that, it is existing to be easy to scratch as products, integral hardness differences such as food take-out case, cold chain turnover boxes, and
Since the interparticle distance of composition product causes greatly waterproof effect, heat insulation effect poor, it is therefore desirable to a kind of new moulding process with
It solves the above problems, and this technique can be extended to other products.
Invention content
Present invention aims at a kind of production technology of polypropylene product of offer and its applications, pass through high-temperature molding, minute surface
Treatment technology so that PP GRANULES is completely enclosed with particle combination gap, and then improves product quality.
In order to solve the problems, such as it is in the prior art these, technical solution provided by the invention is：
A kind of production technology of polypropylene product, including prepare the mold to match with shape of product and the polypropylene by curing
Material fills up the step of cavity of the mold and molding, and the mold includes solid model and shifting formwork, and the shifting formwork passes through driving machine
Structure controllably coordinates with the solid model, when polypropylene fills up the step of the cavity of the mold and molding, sequentially passes through mold
Preheating, charging, feed back, mould secondary preheating, solid model is crosscutting, hot briquetting, product approval, water cooling, vacuumizes and finally demoulds,
Wherein, the process of shifting formwork mirror surface treatment is set in the rear end of the crosscutting process of solid model, and the shifting formwork passes through steam heating temperature to 180
DEG C ~ 200 DEG C and tight mold, and it is 10 ~ 13Kg/cm 2 to be passed through shifting formwork after steam at this time to bear pressure.
For above-mentioned technical proposal, inventor also has further Optimized Measures.
Further, the shifting formwork is made of thermal conductivity aluminum product, the polished processing of inner surface of the shifting formwork, and roughness is
Ra0.8。
Further, there are reinforcing ribs for the outer surface of the shifting formwork, and shifting formwork outer surface is without vent plug.
Further, the process that may also set up solid model mirror surface treatment in the rear end of the crosscutting process of solid model, it is described to pass through steam
Heating temperature be passed through to 180 DEG C ~ 200 DEG C, and at this time in the shifting formwork steam and so that the shifting formwork bear pressure be 11 ~
13Kg/cm 2, while tight mold.
Further, the solid model is made of thermal conductivity aluminum product, the polished processing of inner surface of the solid model, roughness
For Ra0.8.
Further, it is respectively arranged with electromagnetic exhaust valve at the shifting formwork and solid model, and described in controlling by PLC program
Electromagnetic exhaust valve at shifting formwork so that the pressure remained constant that shifting formwork die cavity is born.
Particularly, the present invention provides a kind of production technologies of polypropylene product as described above to prepare foaming kind molding
Application in product.
Particularly, the present invention provides a kind of production technologies of polypropylene product as described above in preparing box product
Application.
Particularly, the present invention provides a kind of production technologies of polypropylene product as described above to prepare telecontrolled aircraft mould
Application in type.
Particularly, the present invention provides a kind of production technologies of polypropylene product as described above to prepare toy product
In application
Scheme in compared with the existing technology, it is an advantage of the invention that：
The present invention carries out high temperature at shifting formwork and/or solid model and adds using high-temperature molding, mirror surface treatment process is different from the prior art
Heat, and mold is handled using medal polish, and the product surface particulate interspaces of production department is enabled to close, and is talked about in minute surface, is increased
The hardness of interiors of products makes its not easy damaged, improves durability.Meanwhile it enclosing intergranular gap and heat preservation is enabled to imitate
Fruit is good, and liquid is not easy to permeate outside outlet, is also convenient for cleaning and tidying, Yang is not housed in original fine crack bacterium, product efficiency
It is significantly improved.
Specific implementation mode
Said program is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
The present invention and be not limited to limit the scope of the invention.The implementation condition used in embodiment can be done according to the condition of specific producer
Further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
Embodiment：
Present embodiment describes a kind of production technology of polypropylene product, including prepare the mold to match with shape of product and
The step of polypropylene material of curing is filled up to cavity and the molding of the mold, the mold include solid model and shifting formwork, described
Shifting formwork is controllably coordinated with the solid model by driving mechanism, in the step of polypropylene fills up the cavity of the mold and molding
When, sequentially pass through mold preheating, charging, feed back, mould secondary preheats, solid model is crosscutting, hot briquetting, product approval, water cooling, pumping
Vacuum simultaneously finally demoulds, wherein the process of shifting formwork mirror surface treatment is arranged in the rear end of the crosscutting process of solid model, the shifting formwork passes through steaming
Vapour heating temperature is to 180 DEG C ~ 200 DEG C and tight mold, and it is 10 ~ 13Kg/cm 2 to be passed through shifting formwork after steam at this time to bear pressure.
The shifting formwork is made of thermal conductivity aluminum product, the polished processing of inner surface of the shifting formwork, roughness Ra0.8.
There are reinforcing ribs for the outer surface of the shifting formwork, and shifting formwork outer surface is without vent plug.
In the process that the rear end of the crosscutting process of solid model may also set up solid model mirror surface treatment, it is described by steam heating temperature extremely
180 DEG C ~ 200 DEG C, and steam is passed through in the shifting formwork at this time and so that it is 11 ~ 13Kg/cm 2 that the shifting formwork, which bears pressure, simultaneously
Tight mold.This operation can realize product mirror surface treatment at solid model.
Particularly, specific as follows the step of polypropylene fills up the cavity of the mold and molding：
One, is fed to be preheated with mold
1. preheated mold is positioned with mold
When shifting formwork moves, Gu shifting formwork blow and mold warm operation.Shifting formwork reaches setting die slot position；
2. charging
It is completed below when mold preheats, spray gun opening feeds mold.Charging can be divided into general charging and add in general manner
It is pressed into material vacuum feeds and separately feeds pulsed feeds.
3. feed back
After the completion of confirming die feeding, feed back cleaning is carried out to expects pipe, closes spray gun and barrel.
Two, steam are heated to be molded with product minute surface
1. solid model secondary preheating and shifting formwork dough made with boiling water secondary preheating
After the completion of charging, solid model preheat while shifting formwork starts arrival solid model transversal position, and shifting formwork is preheating to 80 DEG C.
2. solid model is crosscutting
Product is heated with pressure according to property of raw material set temperature.
3. product hot briquetting and shifting formwork minute surface
Shifting formwork starts shifting formwork steam heating simultaneously and reaches setting pressure (12KG/cm 2）With temperature（185℃）, carry out tight mold.
Solid model carries out hot briquetting processing according to setup parameter simultaneously.
4. product approval
It is quickly cooled to 80 DEG C of set temperature after the completion of shifting formwork minute surface, solid model carries out shaping product.
Three, water coolings and product are stablized
1. pre- water cooling
All drain valves and air bleeding valve are opened when precooling, and all steam of mold are discharged.
2. water cooling
Solid shifting formwork tool is cooled to 50 DEG C~60 DEG C.
3. product is stablized
After mold cools down, carries out mold with air and product blows water.
Four, vacuum are drained
Moisture pump and cooling are carried out to mould product with vacuum.
Five, product strippings
After the completion of product is drained and is cooling.After starting shifting formwork, solid model cavity carries out vacuum products absorption.When shifting formwork goes to stroke
Terminal, solid model liftout attachment can be shaped article ejection die cavities together with air.
It is respectively arranged with electromagnetic exhaust valve at the shifting formwork and solid model, and the electricity at the shifting formwork is controlled by PLC program
Magnetic air bleeding valve so that the pressure remained constant that shifting formwork die cavity is born, to ensure minute surface molding effect.
Further, the present invention provides a kind of production technologies of polypropylene product as described above to prepare foaming kind mould
Application in product.
Further, the present invention provides a kind of production technologies of polypropylene product as described above to prepare box product
In application.
Further, the present invention provides a kind of production technologies of polypropylene product as described above to prepare telecontrolled aircraft
Application in model.
Further, the present invention provides a kind of production technologies of polypropylene product as described above to prepare toy production
Application in product
In summary, the present invention uses and high-temperature molding, mirror surface treatment process is different from the prior art, at shifting formwork and/or solid model
It is heated at high temperature, and mold is handled using medal polish, and the product surface particulate interspaces of production department is enabled to close, is in mirror
Face is talked about, and the hardness of interiors of products is increased, and makes its not easy damaged, improves durability.Meanwhile it enclosing intergranular gap and can make
It is good obtaining heat insulation effect, and liquid is not easy to permeate outside outlet, is also convenient for cleaning and tidying, Yang is not housed in original fine crack bacterium,
Product efficiency is significantly improved.
The foregoing examples are merely illustrative of the technical concept and features of the invention, its object is to allow the person skilled in the art to be
It cans understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all smart according to the present invention
The equivalent transformation or modification that refreshing essence is done, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of production technology of polypropylene product, including prepare the mold to match with shape of product and by poly- the third of curing
Alkene material fills up the step of cavity of the mold and molding, and the mold includes solid model and shifting formwork, and the shifting formwork passes through driving
Mechanism controllably coordinates with the solid model, which is characterized in that when polypropylene fills up the step of the cavity of the mold and molding,
Sequentially by mold preheating, charging, feed back, mould secondary preheat, solid model is crosscutting, hot briquetting, product approval, water cooling, take out very
Sky simultaneously finally demoulds, wherein the process of shifting formwork mirror surface treatment is arranged in the rear end of the crosscutting process of solid model, the shifting formwork passes through steam
Heating temperature is to 180 DEG C ~ 200 DEG C and tight mold, and it is 10 ~ 13Kg/cm 2 to be passed through the shifting formwork after steam at this time to bear pressure.
2. the production technology of polypropylene product according to claim 1, which is characterized in that the shifting formwork uses thermal conductivity aluminum product
It makes, the polished processing of inner surface of the shifting formwork, roughness Ra0.8.
3. the production technology of polypropylene product according to claim 2, which is characterized in that the outer surface of the shifting formwork there are
Reinforcing rib, and shifting formwork outer surface is without vent plug.
4. the production technology of polypropylene product according to claim 1, which is characterized in that after the crosscutting process of solid model
Hold the process that may also set up solid model mirror surface treatment, it is described by steam heating temperature to 180 DEG C ~ 200 DEG C, and the shifting formwork at this time
In be passed through steam and so that it is 11 ~ 13Kg/cm 2, while tight mold that the shifting formwork, which bears pressure,.
5. the production technology of polypropylene product according to claim 4, which is characterized in that the solid model uses thermal conductivity aluminum product
It makes, the polished processing of inner surface of the solid model, roughness Ra0.8.
6. the production technology of polypropylene product according to any one of claim 1 to 5, which is characterized in that the shifting formwork
With electromagnetic exhaust valve is respectively arranged at solid model, and the electromagnetic exhaust valve at the shifting formwork is controlled by PLC program so that shifting formwork
The pressure remained constant that die cavity is born.
7. application of the production technology of polypropylene product as described in claim 1 in preparing foaming kind mechanograph.
8. application of the production technology of polypropylene product as described in claim 1 in preparing box product.
9. application of the production technology of polypropylene product as described in claim 1 in preparing telecontrolled aircraft model.
10. the production technology of polypropylene product as described in claim 1 is in the application in preparing toy product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323614.3A CN108582632B (en) | 2017-12-13 | 2017-12-13 | A kind of production technology and its application of polypropylene product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323614.3A CN108582632B (en) | 2017-12-13 | 2017-12-13 | A kind of production technology and its application of polypropylene product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108582632A true CN108582632A (en) | 2018-09-28 |
| CN108582632B CN108582632B (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711323614.3A Active CN108582632B (en) | 2017-12-13 | 2017-12-13 | A kind of production technology and its application of polypropylene product |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109591243A (en) * | 2018-11-23 | 2019-04-09 | 苏州富顺新型包装材料股份有限公司 | A kind of the mirror surface moulding process and its application of foaming plastics product |
| CN109676949A (en) * | 2019-01-10 | 2019-04-26 | 四川力登维汽车部件有限公司 | The preparation method of pallet with high bearing capacity |
| CN113246513A (en) * | 2021-05-20 | 2021-08-13 | 拯风环境科技(厦门)有限公司 | Fresh air pipeline and production process thereof |
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| CN1739937A (en) * | 2004-08-24 | 2006-03-01 | 顺旺现代包装材料（上海）有限公司 | Foamable polypropylene and polyethylene product forming process without surface airlock |
| CN101913225A (en) * | 2010-08-23 | 2010-12-15 | 天津三星光电子有限公司 | Spraying-free high-surface gloss traceless injection molding process for rear cover of digital camera |
| MX2012001295A (en) * | 2012-01-30 | 2013-07-29 | Marcos De Jesus Del Rosario Haget | Pneumatic machine integral with injection of expanded polystyrene and expanded polypropylene with vertical pressure. |
| EP2492077B1 (en) * | 2011-02-22 | 2015-11-18 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for increasing the polarity of the surface of an EPP moulded part |
-
2017
- 2017-12-13 CN CN201711323614.3A patent/CN108582632B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1739937A (en) * | 2004-08-24 | 2006-03-01 | 顺旺现代包装材料（上海）有限公司 | Foamable polypropylene and polyethylene product forming process without surface airlock |
| CN101913225A (en) * | 2010-08-23 | 2010-12-15 | 天津三星光电子有限公司 | Spraying-free high-surface gloss traceless injection molding process for rear cover of digital camera |
| EP2492077B1 (en) * | 2011-02-22 | 2015-11-18 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for increasing the polarity of the surface of an EPP moulded part |
| MX2012001295A (en) * | 2012-01-30 | 2013-07-29 | Marcos De Jesus Del Rosario Haget | Pneumatic machine integral with injection of expanded polystyrene and expanded polypropylene with vertical pressure. |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109591243A (en) * | 2018-11-23 | 2019-04-09 | 苏州富顺新型包装材料股份有限公司 | A kind of the mirror surface moulding process and its application of foaming plastics product |
| CN109676949A (en) * | 2019-01-10 | 2019-04-26 | 四川力登维汽车部件有限公司 | The preparation method of pallet with high bearing capacity |
| CN113246513A (en) * | 2021-05-20 | 2021-08-13 | 拯风环境科技(厦门)有限公司 | Fresh air pipeline and production process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108582632B (en) | 2019-06-14 |
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