CN114347436A - High-adhesion concave-convex die vacuum-pumping forming process - Google Patents
High-adhesion concave-convex die vacuum-pumping forming process Download PDFInfo
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- CN114347436A CN114347436A CN202111661968.5A CN202111661968A CN114347436A CN 114347436 A CN114347436 A CN 114347436A CN 202111661968 A CN202111661968 A CN 202111661968A CN 114347436 A CN114347436 A CN 114347436A
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- Prior art keywords
- heating
- plastic
- plastic blank
- vacuum
- die
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005086 pumping Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 56
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 229920000642 polymer Polymers 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 11
- -1 styrene amide Chemical class 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 239000002383 tung oil Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- 238000004512 die casting Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000007666 vacuum forming Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a high-adhesion concave-convex mold vacuum-pumping forming process, which comprises the following steps of mixing materials, wherein a high-molecular polymer and a prepolymer can be adopted during material selection, the high-molecular mixture and the prepolymer can be preliminarily mixed, then an additive is added after the high-molecular mixture and the prepolymer are mixed, the additive can adopt 10-15kg of graphene oxide and 5-15kg of styrene amide, 8kg of graphene oxide is sampled in batches, then 8kg of styrene amide is added, the high-molecular mixture and the prepolymer can be mixed, the mixed plastic raw material is subjected to plastic blank forming operation, a heating platform can be used for heating a plastic blank after forming, subsequent treatment of the plastic blank can be well carried out after heating, and vacuum forming is carried out on the plastic by a vacuum pump during subsequent treatment, the molding effect is better.
Description
Technical Field
The invention relates to a forming process, in particular to a vacuum-pumping forming process of a high-fit concave-convex die.
Background
The carbon fiber resin matrix composite material has the advantages of high specific strength, high specific rigidity, strong designability, good fatigue fracture resistance, corrosion resistance, good dimensional stability and the like, and is a high-performance structural material which is widely applied in the fields of aviation, aerospace, traffic and the like at present. Along with the trend of integrated composite materials in the aviation field, the composite material parts are increasingly diversified, the structural forms are increasingly diversified, the forming mechanism and the influencing factors are complex, the composite materials can be used when the vacuumizing operation is needed, and the plastic parts can be well processed by the aid of the composite materials.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the high-fit concave-convex mold vacuum-pumping forming process which is convenient for processing plastic parts.
The invention is realized by adopting the following technical scheme: the vacuum-pumping forming process for high-adhesion concave-convex mold comprises the following steps
Mixing materials, namely, a high-molecular polymer and a prepolymer can be adopted during material selection, the high-molecular polymer and the prepolymer can be preliminarily mixed, then, the high-molecular polymer and the prepolymer are mixed and then added with an additive, the additive can adopt 10-15kg of graphene oxide and 5-15kg of styrene amide, the graphene oxide is sampled in batches and added with 8kg of styrene amide, then, the high-molecular polymer and the prepolymer are reacted and formed through the addition of the styrene amide and the graphene oxide, and a preliminary mixture is formed in the reaction and forming process;
placing the preliminary mixture into a forming die, paving resin soaking cloth at the bottom of the forming die, pouring the preliminary mixture into the upper part of the resin soaking cloth, performing one-step forming on the preliminary mixture by using the forming die, arranging a die-casting part on the forming die, and extruding the preliminary mixture by using the die-casting part to form the preliminary mixture;
then reversely buckling a forming die, pouring out a primary mixture, enabling the primary mixture to form a plastic blank by virtue of the forming die, spraying tung oil on the outer surface of the plastic blank, protecting the outer surface of the plastic blank by utilizing the tung oil, and forming an oil film on the outer surface of the plastic blank by virtue of the tung oil;
the method comprises the following steps of standing a plastic blank, controlling the standing time to be 5-10 hours, carrying out heating treatment on the plastic blank, putting the plastic blank on a heating platform, arranging a plurality of heating rollers on the heating platform, adding a high-power heating resistor into the heating rollers, heating the plastic blank by virtue of the electric heating resistor, and arranging a leading-in hot air cover on the heating platform during heating.
The high-power heating resistor in the heating platform brings heat to the heating platform, then the plastic blank is well heated, the leading-in hot air cover needs to be directly placed on the heating platform during heating, and the plastic blank can be heated from two directions.
The upper part of the leading-in hot air hood is provided with a fan, the fan is used for blowing air into the leading-in air hood, a heating resistance wire is arranged in the leading-in air hood, the heating resistance wire is heated to generate heat, and the fan is used for blowing air to the heating resistance wire to bring the heat to the plastic blank.
After the plastic blank is heated in two directions, the plastic blank is vacuumized, the plastic blank is placed into a vacuum mold, a vacuumizing machine is arranged on the vacuum mold, air suction operation is performed on the vacuum mold by the vacuumizing machine, and the plastic blank is sucked to the inner wall of the vacuum mold to form a fixed shape in the air suction process.
After the plastic blank is processed by the vacuum die, plastic pieces can be formed, the plastic is placed in the processing chamber, the placing platform is filled in the processing chamber, and a plurality of plastic pieces are placed on the placing platform.
A plurality of radiant lamps are arranged in the holding chamber, the plastic part is irradiated, and the outer surface of the plastic part can be sterilized during irradiation.
Compared with the prior art, the plastic blank forming device can be used for mixing the high-molecular mixture and the prepolymer, so that the mixed plastic raw materials are subjected to plastic blank forming operation, the plastic blank can be heated by the heating platform after forming, subsequent treatment of the plastic blank can be well performed after heating, and the plastic is subjected to vacuum forming by the vacuum pump during subsequent treatment, so that the forming effect is better.
Detailed Description
The present invention is further described below, and it should be noted that, in the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form a new embodiment.
The vacuum-pumping forming process for high-adhesion concave-convex mold comprises the following steps
Mixing materials, namely, a high-molecular polymer and a prepolymer can be adopted during material selection, the high-molecular polymer and the prepolymer can be preliminarily mixed, then, the high-molecular polymer and the prepolymer are mixed and then added with an additive, the additive can adopt 10-15kg of graphene oxide and 5-15kg of styrene amide, the graphene oxide is sampled in batches and added with 8kg of styrene amide, then, the high-molecular polymer and the prepolymer are reacted and formed through the addition of the styrene amide and the graphene oxide, and a preliminary mixture is formed in the reaction and forming process;
placing the preliminary mixture into a forming die, paving resin soaking cloth at the bottom of the forming die, pouring the preliminary mixture into the upper part of the resin soaking cloth, performing one-step forming on the preliminary mixture by using the forming die, arranging a die-casting part on the forming die, and extruding the preliminary mixture by using the die-casting part to form the preliminary mixture;
then reversely buckling a forming die, pouring out a primary mixture, enabling the primary mixture to form a plastic blank by virtue of the forming die, spraying tung oil on the outer surface of the plastic blank, protecting the outer surface of the plastic blank by utilizing the tung oil, and forming an oil film on the outer surface of the plastic blank by virtue of the tung oil;
the method comprises the following steps of standing a plastic blank, controlling the standing time to be 5-10 hours, carrying out heating treatment on the plastic blank, putting the plastic blank on a heating platform, arranging a plurality of heating rollers on the heating platform, adding a high-power heating resistor into the heating rollers, heating the plastic blank by virtue of the electric heating resistor, and arranging a leading-in hot air cover on the heating platform during heating.
The high-power heating resistor in the heating platform brings heat to the heating platform, then the plastic blank is well heated, the leading-in hot air cover needs to be directly placed on the heating platform during heating, and the plastic blank can be heated from two directions.
The upper part of the leading-in hot air hood is provided with a fan, the fan is used for blowing air into the leading-in air hood, a heating resistance wire is arranged in the leading-in air hood, the heating resistance wire is heated to generate heat, and the fan is used for blowing air to the heating resistance wire to bring the heat to the plastic blank.
After the plastic blank is heated in two directions, the plastic blank is vacuumized, the plastic blank is placed into a vacuum mold, a vacuumizing machine is arranged on the vacuum mold, air suction operation is performed on the vacuum mold by the vacuumizing machine, and the plastic blank is sucked to the inner wall of the vacuum mold to form a fixed shape in the air suction process.
After the plastic blank is processed by the vacuum die, plastic pieces can be formed, the plastic is placed in the processing chamber, the placing platform is filled in the processing chamber, and a plurality of plastic pieces are placed on the placing platform.
A plurality of radiant lamps are arranged in the holding chamber, the plastic part is irradiated, and the outer surface of the plastic part can be sterilized during irradiation.
When the plastic blank is vacuumized, an aluminum film can be used, the aluminum film adopts an aluminum alloy mold, a screw rod is arranged in the aluminum alloy, an ejection block is arranged on the upper part of the screw rod, and the screw rod can be used for well ejecting the vacuumized plastic piece out of the aluminum alloy mold.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (6)
1. The high-laminating concave-convex die vacuum-pumping forming process is characterized in that: comprises the following steps
Mixing materials, namely, a high-molecular polymer and a prepolymer can be adopted during material selection, the high-molecular polymer and the prepolymer can be preliminarily mixed, then, the high-molecular polymer and the prepolymer are mixed and then added with an additive, the additive can adopt 10-15kg of graphene oxide and 5-15kg of styrene amide, the graphene oxide is sampled in batches and added with 8kg of styrene amide, then, the high-molecular polymer and the prepolymer are reacted and formed through the addition of the styrene amide and the graphene oxide, and a preliminary mixture is formed in the reaction and forming process;
placing the preliminary mixture into a forming die, paving resin soaking cloth at the bottom of the forming die, pouring the preliminary mixture into the upper part of the resin soaking cloth, performing one-step forming on the preliminary mixture by using the forming die, arranging a die-casting part on the forming die, and extruding the preliminary mixture by using the die-casting part to form the preliminary mixture;
then reversely buckling a forming die, pouring out a primary mixture, enabling the primary mixture to form a plastic blank by virtue of the forming die, spraying tung oil on the outer surface of the plastic blank, protecting the outer surface of the plastic blank by utilizing the tung oil, and forming an oil film on the outer surface of the plastic blank by virtue of the tung oil;
the method comprises the following steps of standing a plastic blank, controlling the standing time to be 5-10 hours, carrying out heating treatment on the plastic blank, putting the plastic blank on a heating platform, arranging a plurality of heating rollers on the heating platform, adding a high-power heating resistor into the heating rollers, heating the plastic blank by virtue of the electric heating resistor, and arranging a leading-in hot air cover on the heating platform during heating.
2. The high-fit female-male die vacuum-pumping forming process according to claim 1, characterized in that: the high-power heating resistor in the heating platform brings heat to the heating platform, then the plastic blank is well heated, the leading-in hot air cover needs to be directly placed on the heating platform during heating, and the plastic blank can be heated from two directions.
3. The high-fit female-male die vacuum-pumping forming process according to claim 1, characterized in that: the upper part of the leading-in hot air hood is provided with a fan, the fan is used for blowing air into the leading-in air hood, a heating resistance wire is arranged in the leading-in air hood, the heating resistance wire is heated to generate heat, and the fan is used for blowing air to the heating resistance wire to bring the heat to the plastic blank.
4. The high-fit female-male die vacuum-pumping forming process according to claim 3, characterized in that: after the plastic blank is heated in two directions, the plastic blank is vacuumized, the plastic blank is placed into a vacuum mold, a vacuumizing machine is arranged on the vacuum mold, air suction operation is performed on the vacuum mold by the vacuumizing machine, and the plastic blank is sucked to the inner wall of the vacuum mold to form a fixed shape in the air suction process.
5. The high-fit female-male die vacuum-pumping forming process according to claim 4, characterized in that: after the plastic blank is processed by the vacuum die, plastic pieces can be formed, the plastic is placed in the processing chamber, the placing platform is filled in the processing chamber, and a plurality of plastic pieces are placed on the placing platform.
6. The high-fit female-male die vacuum-pumping forming process according to claim 5, characterized in that: a plurality of radiant lamps are arranged in the holding chamber, the plastic part is irradiated, and the outer surface of the plastic part can be sterilized during irradiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111661968.5A CN114347436A (en) | 2021-12-30 | 2021-12-30 | High-adhesion concave-convex die vacuum-pumping forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111661968.5A CN114347436A (en) | 2021-12-30 | 2021-12-30 | High-adhesion concave-convex die vacuum-pumping forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114347436A true CN114347436A (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111661968.5A Pending CN114347436A (en) | 2021-12-30 | 2021-12-30 | High-adhesion concave-convex die vacuum-pumping forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114347436A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01204719A (en) * | 1988-02-12 | 1989-08-17 | Zeon Kasei Co Ltd | Manufacture of vacuum molded product of shape memory resin |
| JP2003236924A (en) * | 2002-02-22 | 2003-08-26 | Dainippon Printing Co Ltd | Method for manufacturing sheet molded article |
| CN201566129U (en) * | 2009-11-20 | 2010-09-01 | 周兴和 | Multifunctional mold forming machine |
| CN103707490A (en) * | 2013-12-06 | 2014-04-09 | 平湖市中正塑板有限公司 | Method and mold for producing bathtub lower part shape fixing ring |
| CN209350862U (en) * | 2018-12-27 | 2019-09-06 | 诚吉通达(天津)包装材料有限公司 | A kind of vacuum forming machine of automatic loading/unloading |
| CN110615961A (en) * | 2019-09-11 | 2019-12-27 | 安徽省聚科石墨烯科技股份公司 | Plastic additive containing graphene and preparation process thereof |
| CN110920033A (en) * | 2019-12-25 | 2020-03-27 | 雷誉(上海)包装制品有限公司 | Plastic suction forming process for plastic suction products |
| CN110920032A (en) * | 2019-12-25 | 2020-03-27 | 雷誉(上海)包装制品有限公司 | Plastic suction forming process |
-
2021
- 2021-12-30 CN CN202111661968.5A patent/CN114347436A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01204719A (en) * | 1988-02-12 | 1989-08-17 | Zeon Kasei Co Ltd | Manufacture of vacuum molded product of shape memory resin |
| JP2003236924A (en) * | 2002-02-22 | 2003-08-26 | Dainippon Printing Co Ltd | Method for manufacturing sheet molded article |
| CN201566129U (en) * | 2009-11-20 | 2010-09-01 | 周兴和 | Multifunctional mold forming machine |
| CN103707490A (en) * | 2013-12-06 | 2014-04-09 | 平湖市中正塑板有限公司 | Method and mold for producing bathtub lower part shape fixing ring |
| CN209350862U (en) * | 2018-12-27 | 2019-09-06 | 诚吉通达(天津)包装材料有限公司 | A kind of vacuum forming machine of automatic loading/unloading |
| CN110615961A (en) * | 2019-09-11 | 2019-12-27 | 安徽省聚科石墨烯科技股份公司 | Plastic additive containing graphene and preparation process thereof |
| CN110920033A (en) * | 2019-12-25 | 2020-03-27 | 雷誉(上海)包装制品有限公司 | Plastic suction forming process for plastic suction products |
| CN110920032A (en) * | 2019-12-25 | 2020-03-27 | 雷誉(上海)包装制品有限公司 | Plastic suction forming process |
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