CN111300759A - Application of polytetrafluoroethylene material in epoxy resin APG (amorphous polypropylene) die - Google Patents
Application of polytetrafluoroethylene material in epoxy resin APG (amorphous polypropylene) die Download PDFInfo
- Publication number
- CN111300759A CN111300759A CN202010104076.4A CN202010104076A CN111300759A CN 111300759 A CN111300759 A CN 111300759A CN 202010104076 A CN202010104076 A CN 202010104076A CN 111300759 A CN111300759 A CN 111300759A
- Authority
- CN
- China
- Prior art keywords
- apg
- die
- polytetrafluoroethylene material
- epoxy resin
- polytetrafluoroethylene
- 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
- -1 polytetrafluoroethylene Polymers 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 title claims abstract description 61
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 59
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 59
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 37
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 37
- 239000004743 Polypropylene Substances 0.000 title claims description 5
- 229920001155 polypropylene Polymers 0.000 title claims description 5
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 7
- 239000011265 semifinished product Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 239000000047 product Substances 0.000 description 9
- 238000009413 insulation Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000001131 transforming effect Effects 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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
- B29C45/2602—Mould construction elements
-
- 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
- B29C2045/2683—Plurality of independent mould cavities in a single mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to application of a polytetrafluoroethylene material in an epoxy resin APG (amorphous polyethylene glycol) die, belonging to the field of application of the polytetrafluoroethylene material in an automatic pressure gel forming process of epoxy resin. The main technical scheme is as follows: the APG mold adopts polytetrafluoroethylene material for the material injection flow channel, the APG mold is changed into a multi-cavity structure, and the polytetrafluoroethylene material flow channel is directly embedded and fixed with the APG mold. The polytetrafluoroethylene material is applied to the APG die of the primary epoxy resin framework of the voltage transformer, so that the production efficiency can be improved; on the basis of not changing equipment, the tetrafluoroethylene material runner structure is improved, the number of die cavities is increased, and the application rate of the die is improved. In the using process of the die, the polytetrafluoroethylene material runners with different flow rates can be exchanged at will according to the production requirements of different products, so that the product quality is ensured.
Description
Technical Field
The invention relates to the application field of polytetrafluoroethylene materials in an automatic pressure gel forming process of epoxy resin, in particular to application of polytetrafluoroethylene materials in an APG (epoxy resin forming) die.
Background
Currently, the Automatic Pressure Gelation (APG) process is one of the best processes for the production of medium voltage insulation and has been widely used in the power transmission and distribution industry. Pouring materials are injected into a die through a pouring channel by external pressure, the injection pressure is kept in the gelling process, and new materials are continuously injected into a die cavity to compensate defects caused by curing shrinkage and reduce internal stress, so that a finished piece is high in precision, good in surface quality and high in curing speed. With the continuous development of advanced machine equipment and production process, the automatic pressure gel forming process of the epoxy resin is continuously improved, and compared with a mature resin APG mould, the APG mould has the defects. Like the primary epoxy resin framework APG mould of the voltage transformer, the primary epoxy resin framework is a product specially designed for upgrading and transforming the performance of the voltage transformer and is a product which needs to be produced in a larger batch, so that a more perfect and more advanced primary epoxy resin framework manufacturing process is urgently needed, the production capacity of the primary epoxy resin framework is improved, and the stability of the insulation performance of the primary epoxy resin framework is improved.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a method for applying a polytetrafluoroethylene material in an APG mold of a primary epoxy resin framework of a voltage transformer, that is, an application of a polytetrafluoroethylene material in an APG mold of an epoxy resin to improve the existing problems.
In order to achieve the purpose, the invention adopts the following technical scheme: the application of polytetrafluoroethylene material in an epoxy resin APG mold is characterized in that a polytetrafluoroethylene material is adopted in an injection runner of the APG mold, the APG mold is changed into a multi-cavity structure, and the polytetrafluoroethylene material runner is directly embedded and fixed with the APG mold.
And (3) machining the polytetrafluoroethylene material into the shape of a mold runner, embedding the polytetrafluoroethylene material into an APG mold, and injecting epoxy resin into the APG mold through the polytetrafluoroethylene runner for production.
Further, the method comprises the following steps:
(1) processing the polytetrafluoroethylene material into an inlaid size;
(2) the APG mould runner module is processed and molded according to the embedding size through a processing center;
(3) embedding the polytetrafluoroethylene semi-finished product into an APG (amorphous polypropylene) die, and performing auxiliary fastening through a die bolt, wherein the die heats polytetrafluoroethylene to perform self-expansion during use;
(4) and (4) processing the flow channel by the APG die together with the polytetrafluoroethylene material semi-finished product through a processing center.
The invention is further illustrated and explained below.
1. The injection runner of the APG mould of the primary epoxy resin framework of the voltage transformer adopts a polytetrafluoroethylene material.
2. The APG mould structure of the primary epoxy resin framework of the voltage transformer adopts a multi-cavity, and the injection distance is controlled by a polytetrafluoroethylene material injection runner, so that the injection pressure and the injection speed of each cavity product are equal.
3. The polytetrafluoroethylene material replaces a metal runner after being formed by machining. The polytetrafluoroethylene material controls the temperature of the epoxy resin in the process of injecting the epoxy resin APG process. The polytetrafluoroethylene material has the effect on the sealing of the epoxy resin APG mould. The polytetrafluoroethylene material can be directly embedded without bolt fixation in the process of assembling the epoxy resin APG die. The runner made of the polytetrafluoroethylene material realizes quick cleaning of the runner in the process of mold unloading and cleaning of the epoxy resin APG process mold. The polytetrafluoroethylene material runner can increase the number of the die cavities of the die and increase the application rate of the die for the epoxy resin APG process.
The invention has the following beneficial effects and advantages:
1. the polytetrafluoroethylene material disclosed by the invention is applied to the APG die of the primary epoxy resin framework of the voltage transformer, so that the production efficiency can be improved: the APG mould of the primary epoxy resin framework adopts a polytetrafluoroethylene material flow channel, and due to the heat-insulating property of the polytetrafluoroethylene material, the temperature of a cavity of an APG mould product can be increased under the condition of ensuring the material injection effect and the product quality, the curing speed of the epoxy resin is accelerated, the later-stage curing time is shortened, and the APG mould is realized on the premise of ensuring the product quality and the production efficiency is improved.
2. The application of the polytetrafluoroethylene material in the APG die of the primary epoxy resin framework of the voltage transformer is as follows: on the basis of not changing equipment, the tetrafluoroethylene material runner structure is improved, the number of die cavities is increased, and the application rate of the die is improved.
3. The application of the polytetrafluoroethylene material in the APG die of the primary epoxy resin framework of the voltage transformer is as follows: the tetrafluoroethylene material runner has interchangeability, high universality and reliable locking: in the using process of the die, the polytetrafluoroethylene material runners with different flow rates can be exchanged at will according to the production requirements of different products, so that the product quality is ensured.
Drawings
FIG. 1 is a schematic diagram of an application method of a polytetrafluoroethylene material in an automatic pressure gel forming (APG) mold of a primary epoxy resin framework of a voltage transformer;
wherein: 1. a polytetrafluoroethylene material injection runner, and 2, an automatic pressure gel forming (APG) mould of a voltage transformer primary epoxy resin framework.
FIG. 2 is a schematic view of a polytetrafluoroethylene material injection flow channel;
wherein: 3. a main material injection channel of the mold, and a sub-material injection channel of the mold.
FIG. 3 is a schematic view of a polytetrafluoroethylene material processing injection flow channel;
wherein: 5. polytetrafluoroethylene, 6, automatic pressure gel forming (APG) mould of voltage transformer one-time epoxy resin skeleton.
Detailed Description
The invention will be further explained and explained with reference to the drawings.
Example 1
As shown in attached figures 1-3, the novel polytetrafluoroethylene material flow channel in the APG mould of the primary epoxy resin framework of the voltage transformer comprises a polytetrafluoroethylene material injection flow channel of the APG mould, the APG mould is changed into a multi-cavity structure, and the polytetrafluoroethylene material flow channel is directly embedded and fixed with the APG mould.
(1) Processing the polytetrafluoroethylene material into an inlaid size;
(2) the APG mould runner module is processed and molded according to the embedding size through a processing center;
(3) embedding the polytetrafluoroethylene semi-finished product into an APG (amorphous polypropylene) die, and performing auxiliary fastening through a die bolt, wherein the die heats polytetrafluoroethylene to perform self-expansion during use;
(4) and (4) processing the flow channel by the APG die together with the polytetrafluoroethylene material semi-finished product through a processing center.
In the application of the polytetrafluoroethylene material in the epoxy resin APG mould, a polytetrafluoroethylene material flow channel is a main functional structure of the APG mould. The invention is a novel process scheme of APG mould production process principle and related standard design, fully considers APG product performance requirements, adds a multi-cavity structure in an APG mould, thereby achieving the purposes of increasing work efficiency and reducing labor intensity of workers, and utilizes the heat insulation performance and the sealing performance of polytetrafluoroethylene materials, thereby ensuring that the APG mould can safely operate and providing favorable guarantee for APG mould batch production and quality control.
The foregoing examples are provided for illustration and description of the invention only and are not intended to limit the invention to the scope of the described examples. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed.
Claims (2)
1. The application of the polytetrafluoroethylene material in the epoxy resin APG mould is characterized in that a material injection runner of the APG mould adopts the polytetrafluoroethylene material, the APG mould is of a multi-cavity structure, and the polytetrafluoroethylene material runner is directly embedded and fixed with the APG mould.
2. The application of the polytetrafluoroethylene material in an epoxy resin APG mold according to claim 1, which is characterized by comprising the following specific steps:
(1) processing the polytetrafluoroethylene material into an inlaid size;
(2) the APG mould runner module is processed and molded according to the embedding size through a processing center;
(3) embedding the polytetrafluoroethylene semi-finished product into an APG (amorphous polypropylene) die, and performing auxiliary fastening through a die bolt, wherein the die heats polytetrafluoroethylene to perform self-expansion during use;
(4) and (4) processing the flow channel by the APG die together with the polytetrafluoroethylene material semi-finished product through a processing center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104076.4A CN111300759A (en) | 2020-02-20 | 2020-02-20 | Application of polytetrafluoroethylene material in epoxy resin APG (amorphous polypropylene) die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104076.4A CN111300759A (en) | 2020-02-20 | 2020-02-20 | Application of polytetrafluoroethylene material in epoxy resin APG (amorphous polypropylene) die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111300759A true CN111300759A (en) | 2020-06-19 |
Family
ID=71158543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010104076.4A Pending CN111300759A (en) | 2020-02-20 | 2020-02-20 | Application of polytetrafluoroethylene material in epoxy resin APG (amorphous polypropylene) die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111300759A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080010049A (en) * | 2006-07-25 | 2008-01-30 | 삼성전자주식회사 | Method for manufacturing mold and the mold |
| CN202572800U (en) * | 2012-05-10 | 2012-12-05 | 荣升塑胶（上海）有限公司 | Sealing plate for melt runners |
| CN104191565A (en) * | 2014-08-11 | 2014-12-10 | 张洪杰 | Injection-molded hot nozzle structure of hot runner |
| CN106426692A (en) * | 2016-11-07 | 2017-02-22 | 绵阳市兴和模具有限公司 | Bakelite poured mould |
| CN207747344U (en) * | 2018-01-19 | 2018-08-21 | 厦门唯新阳光模具有限公司 | A kind of insulation mold with the protection of material feeding runner |
-
2020
- 2020-02-20 CN CN202010104076.4A patent/CN111300759A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080010049A (en) * | 2006-07-25 | 2008-01-30 | 삼성전자주식회사 | Method for manufacturing mold and the mold |
| CN202572800U (en) * | 2012-05-10 | 2012-12-05 | 荣升塑胶（上海）有限公司 | Sealing plate for melt runners |
| CN104191565A (en) * | 2014-08-11 | 2014-12-10 | 张洪杰 | Injection-molded hot nozzle structure of hot runner |
| CN106426692A (en) * | 2016-11-07 | 2017-02-22 | 绵阳市兴和模具有限公司 | Bakelite poured mould |
| CN207747344U (en) * | 2018-01-19 | 2018-08-21 | 厦门唯新阳光模具有限公司 | A kind of insulation mold with the protection of material feeding runner |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200619 |