CN115157538A - Processing technology for preparing connector cover from polyether-ether-ketone - Google Patents
Processing technology for preparing connector cover from polyether-ether-ketone Download PDFInfo
- Publication number
- CN115157538A CN115157538A CN202210574244.5A CN202210574244A CN115157538A CN 115157538 A CN115157538 A CN 115157538A CN 202210574244 A CN202210574244 A CN 202210574244A CN 115157538 A CN115157538 A CN 115157538A
- Authority
- CN
- China
- Prior art keywords
- injection
- processing technology
- raw material
- pressure
- stage
- 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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Links
- 239000004696 Poly ether ether ketone Substances 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title claims abstract description 18
- 229920002530 polyetherether ketone Polymers 0.000 title claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 61
- 239000007924 injection Substances 0.000 claims abstract description 61
- 239000002994 raw material Substances 0.000 claims abstract description 35
- 239000012535 impurity Substances 0.000 claims abstract description 13
- 238000001746 injection moulding Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000003754 machining Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B29C45/03—Injection moulding apparatus
-
- 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
- B29K2071/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof, as moulding material
Abstract
The application discloses a processing technology for preparing a connector cover by polyether-ether-ketone, which belongs to the technical field of injection molding processing and comprises the following steps: step one, selecting materials: selecting polyether-ether-ketone as a raw material, and removing impurities in the raw material; step two, softening: adding the raw materials subjected to impurity removal into an injection molding machine, and heating for softening; step three, first-stage injection: injecting the softened raw material into a mould through a first pouring gate, wherein the raw material is firstly fed by 80% during first-stage injection, the injection rate is 60-70 mm/s during injection, and the temperature is 360-380 ℃; step four, two-stage injection: opening a second gate after the first-stage injection is finished, injecting the rest part through the second gate, wherein during the second-stage injection, the injection rate is 60-70 mm/s, and the temperature is 370-390 ℃; step five, opening the mold: after the second-stage injection is finished and cooled, adopting a five-stage mold opening, and taking out a primary product; step six, machining: and (5) flattening the surface of the primary product by using a machine tool. This scheme is in order to ensure that connector lid surface is smooth, level and smooth.
Description
Technical Field
The invention relates to the technical field of injection molding processing, in particular to a processing technology for preparing a connector cover from polyether-ether-ketone.
Background
CONNECTOR, i.e. CONNECTOR. Also known domestically as connectors, plugs and sockets. Generally referred to as an electrical connector. I.e., a device that connects two active devices, carrying a current or signal. A connector is a component that is frequently touched by those skilled in our electrical engineering. The function of the device is to erect a communication bridge at the blocked part or among isolated and non-communicated circuits in the circuit, so that current flows and the circuit realizes the preset function.
The connector cover is a sealing cover used with the connector and is used for preventing water or dust and other impurities from entering the connecting piece to influence the use of the connecting piece.
In the existing processing technology of the connector cover, the processed connector cover is easy to deform due to high temperature or deform due to uneven shrinkage. Therefore, a processing technique capable of ensuring the surface of the connector cover to be smooth and flat is needed.
Disclosure of Invention
The invention aims to provide a processing technology for preparing a connector cover by using polyether-ether-ketone, so as to ensure that the surface of the connector cover is smooth and flat.
In order to solve the technical problems, the invention provides the following technical scheme: a processing technology for preparing a connector cover from polyether-ether-ketone comprises the following steps:
step one, selecting materials: selecting polyether-ether-ketone as a raw material, and removing impurities in the raw material;
step two, softening: adding the raw materials subjected to impurity removal into an injection molding machine, and heating for softening;
step three, injecting: injecting the softened raw material into a mould through a first pouring gate, wherein the raw material is firstly fed by 80% during first-stage injection, the injection rate is 60-70 mm/s during injection, and the temperature is 360-380 ℃;
step four, two-stage injection: opening a second pouring gate after the first-stage injection is finished, and injecting the rest part through the second pouring gate, wherein during the second-stage injection, the injection rate is 60-70 mm/s, and the temperature is 370-390 ℃;
step five, opening the mold: after the second-stage injection is finished and cooled, opening the mold by adopting five stages, and taking out the primary product;
step six, machining: and (5) flattening the surface of the primary product by using a machine tool.
Further, when the step is performed for the first injection, the softened raw material needs to flow to the second gate.
Further, the pressure needs to be maintained for 4 to 8 seconds after the injection in the first stage of the third step is finished.
Further, the pressure is kept for 2-5 s after the injection in the fourth section of the step is finished.
Further, when the flat cutting is performed in the sixth step, the flat cutting thickness is 0.7mm.
Further, when five-section die opening is carried out, the speed of the first-section die opening is 20mm/s, the pressure is 45Mpa, the speed of the second-section die opening is 35mm/s, the pressure is 40Mpa, the speed of the third-section die opening is 45mm/s, the pressure is 55Mpa, the speed of the four-section die opening is 30mm/s, the pressure is 45Mpa, the speed of the five-section die opening is 12mm/s, and the pressure is 15Mpa.
The invention has the beneficial effects that: the connector lid that this scheme of adoption processed, the surface is smooth, level and smooth, does not have the condition of influence outward appearance such as sunken, burr, shrink, ejector pin vestige, and the connector lid that processes out through this scheme has high temperature resistant, corrosion-resistant, hydrolysis-resistant, resistant irradiation nature simultaneously, and insulating stable excellent characteristics.
Detailed Description
The following is further detailed by way of specific embodiments:
example 1
Step one, selecting materials: selecting polyether-ether-ketone as a raw material, and removing impurities in the raw material;
step two, softening: adding the raw materials subjected to impurity removal into an injection molding machine, and heating for softening;
step three, injecting: injecting the softened raw material into a mould through a first pouring gate, feeding 80% of the softened raw material when injecting for the first time, wherein the softened raw material needs to flow to a second pouring gate, the injection rate is 65mm/s when injecting, the temperature is 370 ℃, and keeping the pressure for 5s after the first injection is finished;
step four, two-stage injection: opening a second gate after the first-stage injection is finished, injecting the rest part through the second gate, wherein during the second-stage injection, the injection rate is 60mm/s, the temperature is 380 ℃, and the pressure is maintained for 3s after the second-stage injection is finished;
step five, opening the mold: after the second-stage injection is finished and cooled, five-stage mold opening is adopted, wherein the speed of the first-stage mold opening is 20mm/s, the pressure is 45Mpa, the speed of the second-stage mold opening is 35mm/s, the pressure is 40Mpa, the speed of the third-stage mold opening is 45mm/s, the pressure is 55Mpa, the speed of the fourth-stage mold opening is 30mm/s, the pressure is 45Mpa, the speed of the fifth-stage mold opening is 12mm/s, and the pressure is 15Mpa;
step six, machining: and (4) flattening the surface of the primary product by using a machine tool, wherein the flattening thickness is 0.7mm.
Example 2
Step one, selecting materials: selecting polyether-ether-ketone as a raw material, and removing impurities in the raw material;
step two, softening: adding the raw materials subjected to impurity removal into an injection molding machine, and heating for softening;
step three, first-stage injection: injecting the softened raw material into a mould through a first pouring gate, feeding 80% of the softened raw material firstly during first-stage injection, wherein the softened raw material needs to flow to a second pouring gate, the injection speed is 60mm/s during injection, the temperature is 360 ℃, and the pressure is maintained for 4s after the first-stage injection is finished;
step four, two-stage injection: opening a second pouring gate after the first-stage injection is finished, injecting the rest part through the second pouring gate, wherein during the second-stage injection, the injection rate is 65mm/s, the temperature is 370 ℃, and the pressure is maintained for 2s after the second-stage injection is finished;
step five, opening the mold: after the two-stage injection is finished and cooled, adopting five-stage mold opening, wherein the speed of the first-stage mold opening is 20mm/s, the pressure is 45Mpa, the speed of the second-stage mold opening is 35mm/s, the pressure is 40Mpa, the speed of the third-stage mold opening is 45mm/s, the pressure is 55Mpa, the speed of the fourth-stage mold opening is 30mm/s, the pressure is 45Mpa, the speed of the five-stage mold opening is 12mm/s, and the pressure is 15Mpa;
step six, machining: and (4) flattening the surface of the primary product by using a machine tool, wherein the flattening thickness is 0.7mm.
Example 3
Step one, selecting materials: selecting polyether-ether-ketone as a raw material, and removing impurities in the raw material;
step two, softening: adding the raw materials subjected to impurity removal into an injection molding machine, and heating for softening;
step three, first-stage injection: injecting the softened raw material into a mould through a first pouring gate, feeding 80% of the softened raw material firstly during first-stage injection, wherein the softened raw material needs to flow to a second pouring gate, the injection speed is 70mm/s during injection, the temperature is 380 ℃, and the pressure is maintained for 8s after the first-stage injection is finished;
step four, two-stage injection: opening a second gate after the first-stage injection is finished, injecting the rest part through the second gate, wherein during the second-stage injection, the injection rate is 70mm/s, the temperature is 390 ℃, and the pressure is maintained for 5s after the second-stage injection is finished;
step five, opening the die: after the second-stage injection is finished and cooled, five-stage mold opening is adopted, wherein the speed of the first-stage mold opening is 20mm/s, the pressure is 45Mpa, the speed of the second-stage mold opening is 35mm/s, the pressure is 40Mpa, the speed of the third-stage mold opening is 45mm/s, the pressure is 55Mpa, the speed of the fourth-stage mold opening is 30mm/s, the pressure is 45Mpa, the speed of the fifth-stage mold opening is 12mm/s, and the pressure is 15Mpa;
step six, machining: and (4) flattening the surface of the primary product by using a machine tool, wherein the flattening thickness is 0.7mm.
Claims (6)
1. A processing technology for preparing a connector cover from polyether-ether-ketone is characterized by comprising the following steps:
step one, selecting materials: selecting polyether-ether-ketone as a raw material, and removing impurities in the raw material;
step two, softening: adding the raw materials subjected to impurity removal into an injection molding machine, and heating for softening;
step three, injecting: injecting the softened raw material into a mould through a first pouring gate, wherein the raw material is firstly fed by 80% during first-stage injection, the injection rate is 60-70 mm/s during injection, and the temperature is 360-380 ℃;
step four, two-stage injection: opening a second gate after the first-stage injection is finished, injecting the rest part through the second gate, wherein during the second-stage injection, the injection rate is 60-70 mm/s, and the temperature is 370-390 ℃;
step five, opening the mold: after the second-stage injection is finished and cooled, opening the mold by adopting five stages, and taking out the primary product;
step six, machining: and (5) flattening the surface of the primary product by using a machine tool.
2. The processing technology of the polyetheretherketone connector cover according to claim 1, wherein the processing technology comprises the following steps: when the step is performed for the first injection, the softened raw material needs to flow to the second gate.
3. The processing technology for preparing the connector cover from the polyether-ether-ketone according to claim 2, wherein the processing technology comprises the following steps: and maintaining the pressure for 4-8 s after the injection in the first section of the step III.
4. The processing technology for preparing the connector cover from the polyether-ether-ketone according to claim 3, wherein the processing technology comprises the following steps: and in the fourth step, pressure is kept for 2-5 s after the second-stage injection is finished.
5. The processing technology of the polyetheretherketone connector cover according to claim 4, wherein the processing technology comprises the following steps: and when the flattening is carried out in the sixth step, the flattening thickness is 0.7mm.
6. The processing technology for preparing the connector cover from the polyether-ether-ketone according to claim 5, wherein the processing technology comprises the following steps: when five-section die opening is carried out, the speed of the first-section die opening is 20mm/s, the pressure is 45Mpa, the speed of the second-section die opening is 35mm/s, the pressure is 40Mpa, the speed of the third-section die opening is 45mm/s, the pressure is 55Mpa, the speed of the fourth-section die opening is 30mm/s, the pressure is 45Mpa, the speed of the fifth-section die opening is 12mm/s, and the pressure is 15Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210574244.5A CN115157538A (en) | 2022-05-24 | 2022-05-24 | Processing technology for preparing connector cover from polyether-ether-ketone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210574244.5A CN115157538A (en) | 2022-05-24 | 2022-05-24 | Processing technology for preparing connector cover from polyether-ether-ketone |
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| Publication Number | Publication Date |
|---|---|
| CN115157538A true CN115157538A (en) | 2022-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210574244.5A Pending CN115157538A (en) | 2022-05-24 | 2022-05-24 | Processing technology for preparing connector cover from polyether-ether-ketone |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5773038A (en) * | 1995-04-18 | 1998-06-30 | Hettinga; Siebolt | Apparatus for family mold sequential molding |
| JPH11291297A (en) * | 1998-04-07 | 1999-10-26 | Nissan Motor Co Ltd | Injection molding method and injection mold |
| CN107803967A (en) * | 2017-10-26 | 2018-03-16 | 广州中新汽车零部件有限公司 | One kind injection high smooth product is without pressurize moulding process |
| CN109702974A (en) * | 2019-02-18 | 2019-05-03 | 河源市昌红精机科技有限公司 | A kind of printer bottom case and its injection control method |
| CN110253380A (en) * | 2019-06-04 | 2019-09-20 | Oppo广东移动通信有限公司 | Processing method of casing, shell and electronic equipment |
| CN114248390A (en) * | 2021-11-17 | 2022-03-29 | 遵义群建塑胶制品有限公司 | Injection molding processing technology of refrigerator freezing drawer |
-
2022
- 2022-05-24 CN CN202210574244.5A patent/CN115157538A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5773038A (en) * | 1995-04-18 | 1998-06-30 | Hettinga; Siebolt | Apparatus for family mold sequential molding |
| JPH11291297A (en) * | 1998-04-07 | 1999-10-26 | Nissan Motor Co Ltd | Injection molding method and injection mold |
| CN107803967A (en) * | 2017-10-26 | 2018-03-16 | 广州中新汽车零部件有限公司 | One kind injection high smooth product is without pressurize moulding process |
| CN109702974A (en) * | 2019-02-18 | 2019-05-03 | 河源市昌红精机科技有限公司 | A kind of printer bottom case and its injection control method |
| CN110253380A (en) * | 2019-06-04 | 2019-09-20 | Oppo广东移动通信有限公司 | Processing method of casing, shell and electronic equipment |
| CN114248390A (en) * | 2021-11-17 | 2022-03-29 | 遵义群建塑胶制品有限公司 | Injection molding processing technology of refrigerator freezing drawer |
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