CN114311611A - High-strength liquid storage tank and preparation method thereof - Google Patents
High-strength liquid storage tank and preparation method thereof Download PDFInfo
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- CN114311611A CN114311611A CN202111651934.8A CN202111651934A CN114311611A CN 114311611 A CN114311611 A CN 114311611A CN 202111651934 A CN202111651934 A CN 202111651934A CN 114311611 A CN114311611 A CN 114311611A
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- 239000007788 liquid Substances 0.000 title claims abstract description 90
- 238000003860 storage Methods 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 118
- 239000003733 fiber-reinforced composite Substances 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 20
- 229920005992 thermoplastic resin Polymers 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 5
- 238000000071 blow moulding Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 239000011208 reinforced composite material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000010408 film Substances 0.000 description 9
- 239000002828 fuel tank Substances 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008018 melting Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention relates to a high-strength liquid storage tank and a preparation method thereof, wherein the high-strength liquid storage tank comprises a liquid storage tank body and a high-strength material arranged on the inner wall of the liquid storage tank body or a part prepared by using the high-strength material; the high-strength material or part covers a set area of the inner wall of the liquid storage tank; the high-strength material is prepared by using a fiber reinforced composite material. The technology can greatly improve the strength and rigidity of the liquid storage tank and effectively reduce the deformation of the liquid storage tank; the high-strength material or part occupies a small volume and almost has no influence on the volume of the liquid storage tank; and is light in weight. The high-strength material or the part can be placed in an area with larger local deformation of the liquid storage tank, and the problem of large local deformation can be effectively solved. When the liquid storage box is produced, the high-strength material or the part can share one set of component built-in mechanism with other built-in parts, only a fixing device on the component built-in mechanism is needed to be added, a mechanical arm is not additionally added, and the production period and the production process are not increased.
Description
Technical Field
The invention belongs to the technical field of liquid storage tanks, and particularly relates to a high-strength liquid storage tank and a preparation method thereof.
Background
With the increasingly strict requirements of all countries in the world on automobile emission regulations, more and more automobile enterprises increase the research and development investment on new energy vehicles. Countries around the world also set a series of new energy vehicle policies, so that the market share of new energy vehicles is increased year by year. In new energy vehicles, plug-in hybrid vehicles can not only run with pure electricity to meet low emission requirements during short-distance running, but also use gasoline to meet the requirements of endurance mileage during long-distance running, thereby gaining favor of vehicle enterprises and consumers.
Under pure electric mode, the engine can not desorb the carbon canister, and in order to avoid the carbon canister adsorbing steam to reach saturation, fuel steam is generally sealed in the oil tank to prevent the fuel steam from entering the carbon canister. As more fuel vapor is used, the pressure of the sealed fuel tank increases, which requires the fuel tank to be strengthened to withstand a certain pressure.
Common methods for increasing the strength of the fuel tank include: 1. the upper surface and the lower surface of the oil tank are provided with the opposite-top connecting structures, the method has a good effect of increasing the strength of the oil tank, but the volume can be sacrificed, and the higher the tank body is, the larger the volume is. 2. And a supporting structural member is added in the oil tank. The support structure is typically connected to the upper and lower inner surfaces of the tank to limit tank deformation. This method will reduce the volume of the fuel tank, increase the weight of the fuel tank, and increase the cost. 3. A fixed structural part is added outside the oil tank, and the fixed structural part is similar to a cage-shaped structure or an exoskeleton and limits the deformation of the oil tank. The method can obviously increase the weight of the fuel tank, reduce a part of volume and have higher requirements on installation and fixation. In addition, even with the above method, the amount of deformation in some local regions is still large. 4. And placing a fiber reinforced composite material on the outer wall of the oil tank. The method needs to add a mechanical arm for placing the fiber reinforced composite material on the mold, thereby increasing the equipment investment and the production period; or the fiber reinforced composite material is welded on the oil tank after the oil tank is formed, so that the production process is increased.
Disclosure of Invention
The invention aims to provide a high-strength liquid storage tank and a preparation method thereof, which aim to solve the problems of defects or insufficiency of the existing method for increasing the strength of the liquid storage tank.
In order to realize the technical purpose, the invention is realized by the following technical scheme:
a high-strength liquid storage tank comprises a liquid storage tank body and a high-strength material or a part prepared by the high-strength material, wherein the high-strength material is arranged on the inner wall of the liquid storage tank body;
the high-strength material or the part covers a set area of the inner wall of the liquid storage tank; the high-strength material is prepared by using a fiber reinforced composite material.
Furthermore, the high-strength material is formed by stacking a plurality of layers of fiber reinforced composite materials, each layer of fiber reinforced composite material contains fibers and resin, the fibers in each layer of fiber reinforced composite material are unidirectional continuous fibers or fiber cloth woven in a set mode, and the layers of fiber reinforced composite materials are stacked and compounded at a set angle, so that the high-strength material is closer to an isotropic material.
Further, the resin in each layer of fibre-reinforced composite material is a thermoplastic resin which is weldable to the liquid tank body material.
Further, a layer of low-melting-point resin film is arranged on the surface of the side, connected with the liquid storage tank body, of the high-strength material; the material of the low-melting-point resin film is thermoplastic resin which can be welded with the liquid storage tank body.
Furthermore, the shape of the high-strength material is the same as that of the covered inner wall area of the fuel tank, and the thickness of the high-strength material is 0.1-2.5 mm.
Further, the high-strength material is fiber bundle woven cloth prepared from fiber reinforced composite materials, and gaps are arranged among the fiber bundles.
Further, the part prepared by using the high-strength material is a part which is formed by injection molding of the high-strength material and thermoplastic resin, and the thermoplastic resin is a material which can be welded with the liquid storage tank body material.
Furthermore, a plurality of bulges are arranged on one surface, welded with the liquid storage tank, of the thermoplastic resin layer.
Furthermore, a plurality of positioning holes are formed in the high-strength material or the part prepared by the high-strength material.
A method of manufacturing a high strength liquid tank comprising the steps of:
s1, blanking the material for preparing the liquid storage box body through two die devices, and moving the pre-forming template device to the middle of a mold;
s2, closing the left half die and the right half die of the die with a pre-forming template, performing internal high-pressure blow molding, performing pre-forming of the liquid storage box body, and fixing high-strength materials or parts by a component built-in mechanism;
s3, after the mould is opened, the pre-forming template device is moved out, and meanwhile, the component built-in mechanism enters a set position in the middle of the mould;
s4, connecting the high-strength material or the part to the set position of the parison by the component built-in mechanism, and then moving out the component built-in mechanism;
and S5, closing the die again, and blowing air at high pressure to finish the final forming of the high-strength liquid storage tank.
The invention has the beneficial effects that:
the high-strength material or the part prepared by the high-strength material has higher strength, so that the strength and the rigidity of the liquid storage tank can be greatly improved, and the deformation of the liquid storage tank is effectively reduced; the volume occupied by the high-strength material or the part is very small, and the volume of the liquid storage tank is hardly influenced; if the entire upper and lower inner surfaces of the liquid storage tank are covered, the added weight is much lighter than the weight of the existing internal support structure or the external fixation structure. The high-strength material or the part can be placed in an area with large local deformation of the liquid storage tank, particularly in the side area of the liquid storage tank, and the problem of large local deformation can be effectively solved. When the liquid storage box is produced, the high-strength material or the part can share one set of component built-in mechanism with other built-in parts, only a fixing device on the component built-in mechanism is needed to be added, a mechanical arm is not additionally added, and the production period and the production process are not increased.
Drawings
FIG. 1 is a schematic view of the side of the inner wall of a liquid storage tank containing a high strength material;
FIG. 2 is a diagram of the inner wall of the liquid storage tank with a cambered surface containing a high-strength material;
FIG. 3a is a schematic view of a composite material with multiple layers of materials stacked at an angle;
FIG. 3b is a schematic view of a composite material in which multiple layers of the composite material are laminated in other ways;
FIG. 4 is a schematic view of a high strength material with a plane and a perimeter with an R arc;
FIG. 5 is a schematic view of a strip of high strength material;
FIG. 6 is a schematic view of a high strength material in the shape of a cross;
fig. 7 is a schematic view of a high strength material having an arc shape.
Description of the reference numerals
1. Liquid storage tank body, 2, high strength material, 21, locating hole, 3, fibre reinforced composite layer.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
As shown in fig. 1 and 2, the present application provides a high strength liquid storage tank, which comprises a liquid storage tank body 1, wherein a high strength material 2 or a part prepared by using the high strength material is connected to the inner wall of the liquid storage tank body, and the high strength material or the part can cover the inner wall of the liquid storage tank body in a large area, and can also cover a local area of the inner wall of the liquid storage tank body as required.
The high-strength material of the present application is prepared by using a fiber-reinforced composite material, in this embodiment, the high-strength material is formed by stacking a plurality of fiber-reinforced composite material layers 3, as shown in fig. 3a and 3b, and the specific number of layers is determined according to actual needs. Each layer of fiber reinforced composite material contains fibers and resin, and the fibers in each layer of fiber reinforced composite material are unidirectional continuous fibers or fiber cloth woven by the fibers in a set mode. The multiple layers of fiber reinforced composite materials are overlapped and compounded at a set angle, so that the high-strength material is closer to an isotropic material, as shown in fig. 3a and 3 b.
In this embodiment the resin in the fibre-reinforced composite material is a thermoplastic resin, preferably a thermoplastic resin that can be welded to the material of the liquid tank body, such as a PE material. In other embodiments of the present application, the surface of the high-strength material on the side connected to the body of the liquid tank comprises a thin film of a low-melting resin, in this embodiment, a thermoplastic resin having a melting point lower than 100 ℃ is selected, such as LDPE material, which can be welded to the liquid tank. The low-melting-point resin film has a lower melting point, and can reduce the requirement on the temperature of a blank during connection. The temperature of the preform is required to be 185 ℃ or higher in the absence of the low-melting-point resin film, and to be 160 ℃ or higher in the presence of the low-melting-point resin film.
In the technical scheme of this application, the shape of high strength material is the same with the regional shape of liquid storage tank inner wall that covers, can be various shapes such as plane, curved surface as required, as shown in fig. 4-7. In the present application, the thickness of the high-strength material is 0.1 to 2.5mm, wherein the thickness of the high-strength material for the region with a large deformation amount is large, and the thickness of the high-strength material for the region with a small deformation amount is small. The surface of the high-strength material is provided with a plurality of positioning holes 21 for positioning and exhausting when being connected with the liquid storage box body and forming a riveting and fixing structure.
In other embodiments of the present application, the parts may also be injection molded by insert molding using a high strength material and a thermoplastic resin, in this application the thermoplastic resin is preferably a material that is capable of welding with the liquid tank body material, such as HDPE or the like. In the injection-molded part, one side of the thermoplastic resin layer is connected with the high-strength material; the other surface of the thermoplastic resin layer is welded with the inner wall of the liquid storage tank body, in the embodiment, the surface of the thermoplastic resin layer is provided with a plurality of convex structures for increasing the area connected with the liquid storage tank body and improving the connection strength, and in other embodiments, the convex structures are not required to be arranged. The shape of the contact surface of the part and the inner wall of the liquid storage tank body is matched with the shape of the set area of the inner wall of the liquid storage tank body, and the contact surface can be in various shapes such as a plane, a curved surface and the like. The part is provided with a positioning hole for positioning and exhausting when being connected with the inner wall of the liquid storage box body and forming a riveting and fixing structure.
In the technical scheme of this application, high strength material also can be fibre woven cloth, and the fibre that is used for fibre woven cloth uses continuous tow, and the tow is woven with the mode of settlement, has higher intensity, and easily shaping, has certain clearance between the tow to when being connected with the blank of liquid storage tank body, the blank can be squeezed into in the clearance, make fibre woven cloth and blank connected more closely.
The application also provides a preparation method of the high-strength liquid storage tank, which comprises the following steps:
s1, blanking the material for preparing the liquid storage box body through two die devices, and moving the pre-forming template device to the middle of a mold;
s2, closing the left half die and the right half die of the die with a pre-forming template, performing internal high-pressure blow molding, performing pre-forming of the liquid storage box body, and fixing high-strength materials or parts by a component built-in mechanism;
s3, after the mould is opened, the pre-forming template device is moved out, and meanwhile, the component built-in mechanism enters a set position in the middle of the mould;
s4, connecting the high-strength material or the part to the set position of the parison by the component built-in mechanism, and then moving out the component built-in mechanism;
and S5, closing the die again, and blowing air at high pressure to finish the final forming of the high-strength liquid storage tank.
In the step S4, if the fiber-reinforced composite material without the low-melting resin film is connected to the inner wall of the liquid storage tank body, the high temperature of the inner wall causes the resin on the contact surface of the composite material to partially melt and connect with the inner wall; if the fiber reinforced composite material with the low-melting-point resin film is connected with the inner wall of the liquid storage box body, the side with the low-melting-point resin film faces the inner wall, and the low-melting-point resin film is melted by the high temperature of the inner wall and is connected with the inner wall; if the part containing the fiber reinforced composite material is connected with the inner wall of the liquid storage tank body, the side of the part containing the convex structure faces the inner wall, the convex structure is inserted into the material of the inner wall of the liquid storage tank body and is partially melted to form fusion welding, or the resin side without the convex structure is preheated and then is welded with the inner wall of the liquid storage tank body; if the fiber woven cloth is connected with the inner wall of the liquid storage tank body, the fused blank is extruded into the fiber bundle gap, so that the fiber woven cloth and the blank are connected more tightly. The boss on the liquid storage tank body mould and the positioning hole of the high-strength material or the part form positioning, and the liquid storage tank body material is extruded into the hole.
The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of by the inventive arts should be included in the scope of the present invention, and therefore, the scope of the present invention should be subject to the scope defined by the claims.
Claims (10)
1. A high-strength liquid storage tank is characterized by comprising a liquid storage tank body and a high-strength material or a part prepared by the high-strength material, wherein the high-strength material is arranged on the inner wall of the liquid storage tank body;
the high-strength material or the part covers a set area of the inner wall of the liquid storage tank; the high-strength material is prepared by using a fiber reinforced composite material.
2. The high strength liquid tank of claim 1, wherein the high strength material is a stack of layers of fiber reinforced composite material, each layer of fiber reinforced composite material containing fibers and resin, the fibers in each layer of fiber reinforced composite material being unidirectional continuous fibers or fiber cloth woven in a set manner, each layer of fiber reinforced composite material being combined with each other in a stack at a set angle so that the high strength material is closer to an isotropic material.
3. High strength liquid tank according to claim 2, characterized in that the resin in each layer of fibre-reinforced composite material is a thermoplastic resin which can be welded to the liquid tank body material.
4. The high-strength liquid storage tank according to claim 1, wherein a low-melting resin film is provided on a surface of the high-strength material on a side where the high-strength material is connected to the liquid storage tank body; the material of the low-melting-point resin film is thermoplastic resin which can be welded with the liquid storage tank body.
5. High-strength liquid tank according to claim 1, characterized in that the high-strength material has the same shape as the covered inner wall area of the liquid tank, the high-strength material having a thickness of 0.1-2.5 mm.
6. High strength liquid tank according to claim 1, characterized in that the high strength material is a woven cloth of fiber bundles made of a fiber reinforced composite material, with gaps provided between the fiber bundles.
7. High-strength liquid tank according to claim 1, characterized in that the part made with high-strength material is an injection-moulded part using said high-strength material with a thermoplastic resin, which is a material that can be welded with the liquid tank body material.
8. The high strength liquid storage tank of claim 7, wherein the thermoplastic resin layer has a plurality of protrusions formed on a surface thereof welded to the liquid storage tank.
9. High-strength liquid tank according to claim 1, characterized in that a plurality of locating holes are provided on the high-strength material or on a part made of high-strength material.
10. Process for the preparation of a high-strength liquid tank according to any one of the preceding claims 1 to 9, characterized in that it comprises the following steps:
s1, blanking the material for preparing the liquid storage box body through two die devices, and moving the pre-forming template device to the middle of a mold;
s2, closing the left half die and the right half die of the die with a pre-forming template, performing internal high-pressure blow molding, performing pre-forming of the liquid storage box body, and fixing high-strength materials or parts by a component built-in mechanism;
s3, after the mould is opened, the pre-forming template device is moved out, and meanwhile, the component built-in mechanism enters a set position in the middle of the mould;
s4, connecting the high-strength material or the part to the set position of the parison by the component built-in mechanism, and then moving out the component built-in mechanism;
and S5, closing the die again, and blowing air at high pressure to finish the final forming of the high-strength liquid storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651934.8A CN114311611A (en) | 2021-12-30 | 2021-12-30 | High-strength liquid storage tank and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651934.8A CN114311611A (en) | 2021-12-30 | 2021-12-30 | High-strength liquid storage tank and preparation method thereof |
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| Publication Number | Publication Date |
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| CN114311611A true CN114311611A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111651934.8A Pending CN114311611A (en) | 2021-12-30 | 2021-12-30 | High-strength liquid storage tank and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148161A (en) * | 2021-12-30 | 2022-03-08 | 亚普汽车部件股份有限公司 | Liquid storage tank with reinforcing part and production method thereof |
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| US20130037549A1 (en) * | 2010-03-09 | 2013-02-14 | Inergy Automotive Systems Research (Societe Anonyme) | Process for manufacturing a fuel tank and use thereof in a hybrid vehicle |
| CN105377528A (en) * | 2013-03-29 | 2016-03-02 | 全耐塑料高级创新研究公司 | Method for producing a fuel tank or filler pipe and use thereof in a hybrid vehicle |
| CN107226960A (en) * | 2017-07-05 | 2017-10-03 | 泰安石英复合材料有限公司 | Thermoplastic fibre enhancing composite, preparation method and application |
| CN110217098A (en) * | 2019-06-23 | 2019-09-10 | 亚普汽车部件股份有限公司 | A kind of storage tank being provided with stiffener assembly and its production method |
| CN211280076U (en) * | 2019-06-25 | 2020-08-18 | 上海润米科技有限公司 | PP fiber reinforced composite structure for case shell and draw-bar box |
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2021
- 2021-12-30 CN CN202111651934.8A patent/CN114311611A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130037549A1 (en) * | 2010-03-09 | 2013-02-14 | Inergy Automotive Systems Research (Societe Anonyme) | Process for manufacturing a fuel tank and use thereof in a hybrid vehicle |
| CN105377528A (en) * | 2013-03-29 | 2016-03-02 | 全耐塑料高级创新研究公司 | Method for producing a fuel tank or filler pipe and use thereof in a hybrid vehicle |
| CN107226960A (en) * | 2017-07-05 | 2017-10-03 | 泰安石英复合材料有限公司 | Thermoplastic fibre enhancing composite, preparation method and application |
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| CN114148161A (en) * | 2021-12-30 | 2022-03-08 | 亚普汽车部件股份有限公司 | Liquid storage tank with reinforcing part and production method thereof |
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