CN108312424A - A kind of high-precision double-shot moulding mould - Google Patents
A kind of high-precision double-shot moulding mould Download PDFInfo
- Publication number
- CN108312424A CN108312424A CN201810122486.4A CN201810122486A CN108312424A CN 108312424 A CN108312424 A CN 108312424A CN 201810122486 A CN201810122486 A CN 201810122486A CN 108312424 A CN108312424 A CN 108312424A
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- CN
- China
- Prior art keywords
- hot
- barrels
- corrosion
- shot moulding
- precision double
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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
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- 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
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- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
-
- 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
- B29C45/26—Moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of high-precision double-shot moulding moulds, including：A/B barrels, the big small cavity being connect respectively by hot-fluid deferent with A/B barrels, the A/B barrels, hot-fluid deferent, big small cavity are using made of high strength alloy steel, the hot-fluid deferent, big small cavity inner wall on be attached with corrosion-resistant oxidation film layer, the material composition and its mass percent that the corrosion-resistant oxidation film layer includes are：Nitrate 55% 60%, potassium permanganate 15% 20%, phytic acid 10% 15%, nano silicon dioxide 12% 18%.By the above-mentioned means, the present invention can effectively improve the corrosion resistance of mold at high temperature, the service life of mold can be improved, while improving the machining accuracy of plastic.
Description
Technical field
The present invention relates to technical field of mold, more particularly to a kind of high-precision double-shot moulding mould.
Background technology
More and more harsher to the requirement of plastic products with the improvement of the quality of life, double-shot moulding is weighed also therefore increasingly
Depending on.So-called double-shot moulding refers to the forming method that the plastics of two kinds of different color and lusters are injected to same mold.It can make plastic
There are two different colors, and can make plastic that well-regulated pattern or random moire shape pattern be presented, to improve plastic
Practicability and aesthetics.It, can be to mold cavity table due to containing resin extender in plastic cement but in existing two-shot molding process
Face, which generates, washes away, wears and corrodes, while being heated containing ingredients such as chlorine, fluorine in injection moulding process and decompositing etchant gas, causes corruption
Erosion, to not only reduce the service life of injection mould, while being significantly reduced the precision of plastic.
Invention content
The invention mainly solves the technical problem of providing a kind of high-precision double-shot moulding moulds, by barrel, hot flow path
Pipe and cavity inner wall adhere to corrosion-resistant oxidation film layer, can effectively improve the corrosion resistance of mold at high temperature, can improve
The service life of mold, while improving the machining accuracy of plastic.
In order to solve the above technical problems, one aspect of the present invention is：A kind of high-precision double-shot moulding is provided
Mould, including：A/B barrels, the big small cavity being connect respectively by hot-fluid deferent with A/B barrels, the A/B barrels, hot-fluid deferent,
Big small cavity be using made of high strength alloy steel, the hot-fluid deferent, big small cavity inner wall on be attached with corrosion resistant
Corrosion passivation film, the material composition and its mass percent that the corrosion-resistant oxidation film layer includes are：Nitrate 55%-
60%, potassium permanganate 15%-20%, phytic acid 10%-15%, nano silicon dioxide 12%-18%.
In a preferred embodiment of the present invention, the front end of the hot-fluid deferent is equipped with flow control valve.
In a preferred embodiment of the present invention, thermostatic controller is equipped in the large cavity.
In a preferred embodiment of the present invention, the set temperature of the thermostatic controller is 50-60 DEG C.
In a preferred embodiment of the present invention, the thickness of the corrosion-resistant oxidation film is 0.5-1mm.
In a preferred embodiment of the present invention, the high strength alloy steel makees steel alloy using import DH31-S heat.
The beneficial effects of the invention are as follows：The present invention in barrel, hot-fluid deferent and cavity inner wall by adhering to corrosion resistance
Passivation film can effectively improve the corrosion resistance of mold at high temperature, can improve the service life of mold, while improve plastic
Machining accuracy.
Specific implementation mode
The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.
The embodiment of the present invention includes：
Embodiment one
A kind of high-precision double-shot moulding mould, including：A/B barrels, connect respectively by hot-fluid deferent with A/B barrels it is big small-sized
Chamber, the A/B barrels, hot-fluid deferent, big small cavity are used made of high strength alloy steel, the hot-fluid deferent, size
Corrosion-resistant oxidation film layer is attached on the inner wall of cavity, the material composition and its matter that the corrosion-resistant oxidation film layer includes
Measuring percentage is：Nitrate 58%, potassium permanganate 16%, phytic acid 12%, nano silicon dioxide 14%.
Wherein, the front end of the hot-fluid deferent is equipped with flow control valve.
Thermostatic controller is equipped in the large cavity, and the set temperature of the thermostatic controller is 50-60 DEG C.
The thickness of the corrosion-resistant oxidation film is 0.8mm.
The high strength alloy steel makees steel alloy using import DH31-S heat.
Embodiment two
A kind of high-precision double-shot moulding mould, including：A/B barrels, connect respectively by hot-fluid deferent with A/B barrels it is big small-sized
Chamber, the A/B barrels, hot-fluid deferent, big small cavity are used made of high strength alloy steel, the hot-fluid deferent, size
Corrosion-resistant oxidation film layer is attached on the inner wall of cavity, the material composition and its matter that the corrosion-resistant oxidation film layer includes
Measuring percentage is：Nitrate 59%, potassium permanganate 17%, phytic acid 11%, nano silicon dioxide 13%.
Wherein, the front end of the hot-fluid deferent is equipped with flow control valve.
Thermostatic controller is equipped in the large cavity, and the set temperature of the thermostatic controller is 50-60 DEG C.
The thickness of the corrosion-resistant oxidation film is 1mm.
The high strength alloy steel makees steel alloy using import DH31-S heat.
Embodiment three
A kind of high-precision double-shot moulding mould, including：A/B barrels, connect respectively by hot-fluid deferent with A/B barrels it is big small-sized
Chamber, the A/B barrels, hot-fluid deferent, big small cavity are used made of high strength alloy steel, the hot-fluid deferent, size
Corrosion-resistant oxidation film layer is attached on the inner wall of cavity, the material composition and its matter that the corrosion-resistant oxidation film layer includes
Measuring percentage is：Nitrate 60%, potassium permanganate 18%, phytic acid 10%, nano silicon dioxide 12%.
Wherein, the front end of the hot-fluid deferent is equipped with flow control valve.
Thermostatic controller is equipped in the large cavity, and the set temperature of the thermostatic controller is 50-60 DEG C.
The thickness of the corrosion-resistant oxidation film is 1mm.
The high strength alloy steel makees steel alloy using import DH31-S heat.
The present invention technological process be：It is plasticized rigid base material in A barrels, elastic material, A barrels are plasticized in B barrels
Injection speed when the interior rigid base material being plasticized enters small cavity by hot-fluid deferent is 25cm3/s, dwell pressure
It is 90%, when rigid base material is transferred to after injection molding in large cavity in small cavity, controls the temperature in large cavity at this time
Constant is 50-60 DEG C, and the elastic material being then plasticized in B barrels is entered by hot-fluid deferent in large cavity, is controlled at this time
The injection speed of elastic material melt is 15cm3/s, and dwell pressure 85% demoulds after the completion of injection molding and obtains two-color plastic.
The present invention provides a kind of high-precision double-shot moulding moulds, by adhering in barrel, hot-fluid deferent and cavity inner wall
Corrosion-resistant oxidation film layer can effectively improve the corrosion resistance of mold at high temperature, can improve the service life of mold, simultaneously
Improve the machining accuracy of plastic.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (6)
1. a kind of high-precision double-shot moulding mould, which is characterized in that including：A/B barrels with A/B barrels pass through hot-fluid deferent respectively
The big small cavity of connection, the A/B barrels, hot-fluid deferent, big small cavity are used made of high strength alloy steel, the heat
Flow-path tube, big small cavity inner wall on be attached with corrosion-resistant oxidation film layer, the original that the corrosion-resistant oxidation film layer includes
Material ingredient and its mass percent are：Nitrate 55%-60%, potassium permanganate 15%-20%, phytic acid 10%-15%, nano silicon dioxide
12%-18%。
2. high-precision double-shot moulding mould according to claim 1, which is characterized in that the front end of the hot-fluid deferent is equipped with stream
Control valve.
3. high-precision double-shot moulding mould according to claim 1, which is characterized in that be equipped with thermostatic control in the large cavity
Device.
4. high-precision double-shot moulding mould according to claim 3, which is characterized in that the set temperature of the thermostatic controller
It is 50-60 DEG C.
5. high-precision double-shot moulding mould according to claim 1, which is characterized in that the thickness of the corrosion-resistant oxidation film
For 0.5-1mm.
6. high-precision double-shot moulding mould according to claim 1, which is characterized in that the high strength alloy steel uses import
DH31-S heat makees steel alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122486.4A CN108312424A (en) | 2018-02-07 | 2018-02-07 | A kind of high-precision double-shot moulding mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122486.4A CN108312424A (en) | 2018-02-07 | 2018-02-07 | A kind of high-precision double-shot moulding mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108312424A true CN108312424A (en) | 2018-07-24 |
Family
ID=62903734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810122486.4A Pending CN108312424A (en) | 2018-02-07 | 2018-02-07 | A kind of high-precision double-shot moulding mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108312424A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202264357U (en) * | 2011-08-31 | 2012-06-06 | 上海龙洲塑料模具有限公司 | Special two-color mold for turntable type two-screw parallel jetting injection molding machine |
| CN106182566A (en) * | 2016-08-28 | 2016-12-07 | 天津联欣盈塑胶科技有限公司 | A kind of double-colored planting frame injection machine |
| CN106514963A (en) * | 2015-09-15 | 2017-03-22 | 柳道万和(苏州)热流道系统有限公司 | Heat runner system, injection molding process thereof, and color changing process of heat runner system |
-
2018
- 2018-02-07 CN CN201810122486.4A patent/CN108312424A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202264357U (en) * | 2011-08-31 | 2012-06-06 | 上海龙洲塑料模具有限公司 | Special two-color mold for turntable type two-screw parallel jetting injection molding machine |
| CN106514963A (en) * | 2015-09-15 | 2017-03-22 | 柳道万和(苏州)热流道系统有限公司 | Heat runner system, injection molding process thereof, and color changing process of heat runner system |
| CN106182566A (en) * | 2016-08-28 | 2016-12-07 | 天津联欣盈塑胶科技有限公司 | A kind of double-colored planting frame injection machine |
Non-Patent Citations (1)
| Title |
|---|
| 李东光: "《实用化工产品配方与制备》", 30 September 2013, 中国纺织出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180724 |
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| RJ01 | Rejection of invention patent application after publication |