CN114211680A - Method for manufacturing novel glue sealing core of liquid silica gel - Google Patents
Method for manufacturing novel glue sealing core of liquid silica gel Download PDFInfo
- Publication number
- CN114211680A CN114211680A CN202111317503.8A CN202111317503A CN114211680A CN 114211680 A CN114211680 A CN 114211680A CN 202111317503 A CN202111317503 A CN 202111317503A CN 114211680 A CN114211680 A CN 114211680A
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- manufacturing
- core
- feed
- sealing core
- glue sealing
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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
- B29C45/03—Injection moulding apparatus
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention is suitable for the technical field of powder metallurgy forming, and discloses a method for manufacturing a novel liquid silica gel sealing core.
Description
Technical Field
The invention belongs to the technical field of injection molds, and particularly relates to a method for manufacturing a novel liquid silica gel sealing core.
Background
The plastic core in the prior art can solve the problem of glue overflow of the hardware sealing glue, and mainly has the following defects: 1. the plastic core is easy to wear, generally 4-8 hours, and needs to be replaced within 24 hours at most, which affects the stability and the output efficiency of the product. 2. The plastic core has poor thermal conductivity, and the vulcanization time is prolonged, so that the molding period is long, and the working efficiency is low.
Disclosure of Invention
The invention aims to provide a method for manufacturing a novel liquid silica gel sealing core, and aims to solve the problems that a plastic core in the prior art is easy to wear and has poor heat conductivity.
The invention provides a method for manufacturing a novel liquid silica gel sealing glue core, which comprises the following steps:
preparing a feed: taking PC, PMMA, PEEK or POM particles and tungsten copper powder according to (90-50)%: (10-50)% of the mixture is mixed in a volume ratio, and is mixed in an internal mixer to form uniform paste, and then is granulated in a granulator; obtaining feed particles;
injection molding: adding the feed into an injection molding machine for screw plasticization, extruding the feed into a molding cavity of a glue sealing core mold through extrusion after the screw plasticization, filling the molding cavity of the glue sealing core mold, and cooling after filling to obtain a green body;
taking out a green body: and opening the glue sealing core mold, and ejecting the green body through an ejection mechanism to obtain a glue sealing core.
Further, in the step-feed preparation, the average particle size of the tungsten copper powder is 1 to 20 microns.
Further, in the step feeding preparation, the mixing temperature is 180-300 ℃.
Further, in the step feed preparation, the mixing time period is 2 to 5 hours.
Further, in the step injection molding, the injection temperature is 175-280 ℃.
Further, in the step injection molding, the cooling time is 5 to 15 seconds.
The invention has the beneficial effects that: according to the invention, the mixture of PC, PMMA, PEEK or POM particles and tungsten-copper powder is used as a feeding raw material, the green body is taken out through injection molding to obtain the novel liquid silica gel sealing core, and the sealing core contains plastic components and metal powder components, so that the wear resistance and elasticity of the core can be effectively improved, the service life of the core is prolonged, the core replacement period is shortened, the thermal conductivity can be improved, the efficiency and the productivity are further improved, and the production stability is ensured.
Drawings
FIG. 1 is a flowchart of a method for manufacturing a liquid silicone rubber core.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of specific implementations of the present invention is provided in conjunction with specific embodiments:
example (b):
fig. 1 shows an implementation flow of a method for manufacturing a liquid silicone rubber sealing core according to an embodiment of the present invention, and only shows a portion related to the embodiment of the present invention, which is detailed as follows:
step S1, feed preparation: taking PC, PMMA, PEEK or POM particles and tungsten copper powder according to (90-50)%: (10-50)% of the mixture is mixed in a volume ratio, and is mixed in an internal mixer to form uniform paste, and then is granulated in a granulator to obtain feed;
step S2, injection molding: adding the feed into an injection molding machine for screw plasticization, extruding the feed into a molding cavity of a glue sealing core mold through extrusion after the screw plasticization, filling the molding cavity of the glue sealing core mold, and cooling after filling to obtain a green body;
step S3, taking out the green compact: and opening the glue sealing core mold, and ejecting the green body by an ejection mechanism to obtain the glue sealing core.
Further, in step S1, the average particle size of the tungsten copper powder is 10 μm.
Further, in step S1, the kneading temperature was 240 ℃.
Further, in step S1, the kneading was continued for 3 hours.
Further, in step S2, the injection temperature is 220 degrees celsius.
Further, in step S3, the cooling time is 10 seconds.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The method for manufacturing the novel liquid silica gel sealing core is characterized by comprising the following steps:
preparing a feed: taking PC, PMMA, PEEK or POM particles and tungsten copper powder according to (90-50)%: (10-50)% of the mixture is mixed in a volume ratio, and is mixed in an internal mixer to form uniform paste, and then is granulated in a granulator to obtain feed;
injection molding: adding the feed into an injection molding machine for screw plasticization, extruding the feed into a molding cavity of a glue sealing core mold through extrusion after the screw plasticization, filling the molding cavity of the glue sealing core mold, and cooling after filling to obtain a green body;
taking out a green body: and opening the glue sealing core mold, and ejecting the green body through an ejection mechanism to obtain a glue sealing core.
2. The method for manufacturing the novel liquid silicone rubber sealing core as claimed in claim 1, wherein in the step of feeding preparation, the average particle size of the tungsten copper powder is 1-20 μm.
3. The method for manufacturing the liquid silicone rubber sealing compound core as claimed in claim 1, wherein in the step of preparing the feeding material, the mixing temperature is 180 ℃ to 300 ℃.
4. The method for manufacturing the novel liquid silicone rubber sealing compound core as claimed in claim 1, wherein in the step of preparing the feed material, the mixing time is 2-5 hours.
5. The method as claimed in claim 1, wherein the injection temperature is 175-280 ℃ in the step of injection molding.
6. The method for manufacturing a new type of liquid silicone rubber sealing compound core as claimed in claim 1, wherein in the step of injection molding, the cooling time is 5-15 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317503.8A CN114211680A (en) | 2021-11-09 | 2021-11-09 | Method for manufacturing novel glue sealing core of liquid silica gel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317503.8A CN114211680A (en) | 2021-11-09 | 2021-11-09 | Method for manufacturing novel glue sealing core of liquid silica gel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114211680A true CN114211680A (en) | 2022-03-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111317503.8A Pending CN114211680A (en) | 2021-11-09 | 2021-11-09 | Method for manufacturing novel glue sealing core of liquid silica gel |
Country Status (1)
| Country | Link |
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| CN (1) | CN114211680A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001191379A (en) * | 2000-01-13 | 2001-07-17 | Asahi Kasei Corp | Silicone rubber moldings and method for molding composite moldings |
| JP2004216578A (en) * | 2003-01-09 | 2004-08-05 | Asahi Kasei Chemicals Corp | Injection-molded product and injection molding method |
| JP2009298868A (en) * | 2008-06-10 | 2009-12-24 | Ube Ind Ltd | Polyamide resin composition and molded article |
| CN112140453A (en) * | 2020-09-21 | 2020-12-29 | 惠州市宝艺工艺制品有限公司 | Method for forming high-strength composite plastic product |
-
2021
- 2021-11-09 CN CN202111317503.8A patent/CN114211680A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001191379A (en) * | 2000-01-13 | 2001-07-17 | Asahi Kasei Corp | Silicone rubber moldings and method for molding composite moldings |
| JP2004216578A (en) * | 2003-01-09 | 2004-08-05 | Asahi Kasei Chemicals Corp | Injection-molded product and injection molding method |
| JP2009298868A (en) * | 2008-06-10 | 2009-12-24 | Ube Ind Ltd | Polyamide resin composition and molded article |
| CN112140453A (en) * | 2020-09-21 | 2020-12-29 | 惠州市宝艺工艺制品有限公司 | Method for forming high-strength composite plastic product |
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