CN116262544A - Combined air inlet channel and forming method thereof - Google Patents
Combined air inlet channel and forming method thereof Download PDFInfo
- Publication number
- CN116262544A CN116262544A CN202111525676.9A CN202111525676A CN116262544A CN 116262544 A CN116262544 A CN 116262544A CN 202111525676 A CN202111525676 A CN 202111525676A CN 116262544 A CN116262544 A CN 116262544A
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- shell
- wood block
- foam
- grid
- fixed wood
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
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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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
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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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/10—Manufacturing or assembling aircraft, e.g. jigs therefor
Abstract
The invention provides a combined air inlet, which comprises an air inlet shell (10), a cross grid (20), a foam sandwich (30), a left fixed wood block (4), a right fixed wood block (5), a lower fixed wood block (6) and an upper fixed wood block (7); the air inlet channel shell (10) comprises an inner surface shell (11), an outer surface upper shell (12) and an outer surface lower shell (13); the foam sandwich (30) comprises a front foam (31) and a rear foam (32), and the rear foam (32) and the inner surface shell (11) are combined and cured together for molding. The invention adopts a combined design, is molded in sections, simplifies the process, reduces the manufacturing difficulty and the manufacturing cost, improves the product qualification rate and shortens the manufacturing period. The invention also provides a combined air inlet channel forming method, and the technical problems are solved.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle air inlet channel and a forming method.
Background
The unmanned plane has the advantages of small size, light weight, wide application and the like, and plays an increasingly important role in the fields of national defense and civil use. The requirements on materials are higher and higher, and the composite material has the advantages of high specific strength and specific rigidity, designable mechanical properties and the like, and is widely applied to unmanned aerial vehicle design. The air inlet channel is a key component of the unmanned aerial vehicle pneumatic system, provides air flow for the engine, and strong air flow enters the air inlet channel in the operation process of the unmanned aerial vehicle to form strong internal pressure, so that the air inlet channel part is required to meet the requirements of strength and rigidity, pneumatic requirements are also required to be met, the requirements of the inner surface and the outer surface of the main body are smooth, and the requirements of the machining precision of the inner surface and the outer surface are high. At present, the air inlet channel is generally formed integrally, if the precision of the inner molded surface and the outer molded surface is ensured at the same time, the manufacturing process is complex, the manufacturing cost is high, the rejection rate of the molded product is high, and the manufacturing period is prolonged.
Disclosure of Invention
The invention solves the technical problems of providing the combined air inlet channel which has the advantages of simplified process, low cost, high qualification rate and short manufacturing period. In addition, the invention also provides a combined air inlet channel forming method, and the technical problems are solved.
A combined air inlet comprises an air inlet shell 10, a cross grid 20, a foam sandwich 30, a left fixed wood block 4, a right fixed wood block 5, a lower fixed wood block 6 and an upper fixed wood block 7;
the intake duct housing 10 includes an inner-surface housing 11, an outer-surface upper housing 12, and an outer-surface lower housing 13; wherein the flanging part at the rear part of the inner molded surface shell 11 is provided with a sinking region 8, the front part of the outer molded surface upper shell 12 is provided with a sinking region 8, and the front part, the left side and the right side of the outer molded surface lower shell 13 are provided with sinking regions 8; the upper part of the flanging position of the front part of the inner molded surface shell 11 is overlapped with the sinking region 8 at the front part of the outer molded surface upper shell 12, the lower part of the flanging position of the front part of the inner molded surface shell 11 is overlapped with the sinking region 8 at the front part of the outer molded surface lower shell 13, the rear part of the outer molded surface upper shell 12 is overlapped with the upper sinking region 8 at the flanging position of the rear part of the inner molded surface shell 11, the rear part of the outer molded surface lower shell 13 is overlapped with the lower sinking region 8 at the flanging position of the rear part of the inner molded surface shell 11, and the left side and the right side of the outer molded surface upper shell 12 are overlapped with the left side and the right side sinking regions 8 of the outer molded surface lower shell 13; openings are arranged on the lower side, the upper side, the left side and the right side of the inner molded surface shell 11, openings are arranged on the left side and the right side of the outer molded surface upper shell 12, and openings are arranged on the lower side of the outer molded surface lower shell 13, so that the cross grid 20 is installed;
the foam sandwich 30 comprises a front foam 31 and a rear foam 32; the left side, the right side, the lower side and the upper side of the front foam 31 are provided with openings, so that the front foam 31 is respectively fixed with the left fixed wood block 4, the right fixed wood block 5, the lower fixed wood block 6 and the upper fixed wood block 7; the rear foam 32 is installed in the rear flanging part of the inner profile shell 11;
the left side fixed wood block 4, the right side fixed wood block 5, the lower fixed wood block 6 and the upper fixed wood block 7 are respectively provided with corresponding openings, so that the cross grille is installed and fixed.
Further, under the front portion of the inner profile shell 11 is a solid laminate structure.
Further, the air inlet casing 10 is adhered to the glue film placed between the foams, between the wood blocks and the foams, and between the wood blocks and the air inlet casing 10, the cross grille 20 is adhered to the structural glue placed between the wood blocks, and the vertical grille 23 is adhered to the horizontal right grille 21 and the horizontal left grille 22, so as to form the cross grille 20.
Further, the rear foam 32 is combined with the inner face housing 11 and is cured and molded.
In addition, the invention provides a combined air inlet channel forming method, which comprises the following forming processes: respectively processing a front foam 31, a rear foam 32, a left fixed wood block 4, a right fixed wood block 5, a lower fixed wood block 6, an upper fixed wood block 7, a right grid 21, a horizontal left grid 22 and a vertical grid 23, and completing the combined molding of the outer surface upper shell 12, the outer surface lower shell 13, the rear foam 32 and the inner surface shell 11 through three molding tools; wrapping the front foam 31 with a layer of adhesive film, wherein the outer surface lower shell 13 and the outer surface lower shell 12 are wrapped with adhesive films except the outer surface; sequentially placing a front foam 31, a left fixed wood block 4, a right fixed wood block 5, a lower fixed wood block 6, an upper fixed wood block 7, an outer surface lower shell 13 and an outer surface lower shell 12 on the inner surface shell 11, curing after pasting a vacuum bag, and demoulding after curing is finished; and then opening the inner surface shell 11, the outer surface upper shell 12 and the outer surface lower shell 13 at the positions of corresponding grid mounting openings, sequentially mounting the vertical grid 23, the horizontal right grid 21 and the horizontal left grid 22, and adopting structural adhesive bonding, and curing after the bonding is completed to realize the final forming of the air inlet channel.
Further, the inner surface shell 11 and the rear foam 32 are cured and formed together, and the operation steps comprise that prepreg is paved and pasted on the inner surface mould a according to a specified layer, prepreg with the required length is reserved in the area needing flanging, and each layer of reserved prepreg is isolated by an isolating film so as to prevent the adhesion of the material layers; after the specified paving is finished, placing rear foam 32 wrapping a layer of adhesive film at a lower specified position, wrapping reserved prepreg, and then installing a lower outer surface left die e and a rear outer surface right die f in place; and sequentially placing a left filling mold b and a right filling mold c in an upper designated area, wrapping the reserved prepreg, sequentially installing an upper outer surface mold d, a right positioning block g, a rear positioning block h, a left positioning block k and a front positioning block m in place, curing after pasting a vacuum bag, and demoulding after curing is completed.
The invention improves the design and the forming method of the air inlet channel, adopts the combined design and the sectional forming, thereby simplifying the process, reducing the manufacturing difficulty and the manufacturing cost, improving the product percent of pass and shortening the manufacturing period.
Drawings
FIG. 1 illustrates an assembly view of a combined inlet according to an embodiment of the invention;
FIG. 2 illustrates an exploded view of a combined inlet according to an embodiment of the invention;
FIG. 3 shows a schematic view of the structure of an external profile upper housing of an embodiment of the present invention;
FIG. 4 shows a schematic view of the structure of an external profile upper housing of an embodiment of the present invention;
FIG. 5 illustrates a front view of an inner profile shell in accordance with an embodiment of the present invention;
FIG. 6 shows a cross-sectional view on section A-A of FIG. 5;
FIG. 7 shows a detailed view at A of FIG. 6;
FIG. 8 shows a cross-sectional view on section B-B of FIG. 5;
FIG. 9 shows a detailed view at A of FIG. 8;
FIG. 10 shows a schematic structural view of a foam core according to an embodiment of the present invention;
FIG. 11 illustrates a front view of a combined inlet according to an embodiment of the invention;
FIG. 12 shows a cross-sectional view on section A-A of FIG. 11;
FIG. 13 shows a detailed view at A of FIG. 12;
FIG. 14 shows a detailed view at B of FIG. 12;
FIG. 15 shows a detailed view at C of FIG. 12;
FIG. 16 shows a detailed view at D of FIG. 12;
FIG. 17 shows a detailed view at E of FIG. 12;
FIG. 18 shows a cross-sectional view on section F-F of FIG. 12;
FIG. 19 shows a detailed view at A of FIG. 18;
FIG. 20 shows a detailed view at B of FIG. 18;
FIG. 21 shows a detailed view at C of FIG. 18;
FIG. 22 shows a detailed view at D of FIG. 18;
fig. 23 shows an inner face shell and rear foam molding combination tooling of an embodiment of the present invention.
Specific reference numerals in the drawings are as follows:
10-an inlet duct housing; 11-an inner face housing; 12-an outer profile upper housing; 13-exterior surface lower shell; 20-a cross grid; 21-horizontal right-side grille; 22-horizontal left-side grille; 23-vertical grid; 30-foam sandwich; 31-front foam; 32-rear foam; 4, fixing wood blocks on the left side; 5-right side fixed wood block 5;6, fixing a wood block below; 7, fixing a wood block above; 8-dip area; A-An inner profile mold; b, filling a left die; c, filling the right mould; d-upper outer profile mold; e-lower outer profile left mold; f-rear outer profile right mold; g-a right positioning block; h, a rear positioning block; k-left positioning block; m-front positioning block.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
The invention provides a combined air inlet, as shown in fig. 1 and 2, which comprises an air inlet shell 10, a cross grid 20, a foam sandwich 30, a left fixed wood block 4, a right fixed wood block 5, a lower fixed wood block 6 and an upper fixed wood block 7.
As shown in fig. 2, the intake duct housing 10 includes an inner-surface housing 11, an outer-surface upper housing 12, and an outer-surface lower housing 13. As shown in fig. 5-9, the lower front part of the inner surface shell 11 is provided with a solid laminated plate structure, so that the rigidity of the air inlet channel is improved. As shown in fig. 3-5, the flanging part of the rear part of the inner molded surface shell 11 is provided with a sinking area 8, the front part of the outer molded surface upper shell 12 is provided with a sinking area 8, and the front part, the left side and the right side of the outer molded surface lower shell 13 are provided with sinking areas 8. As shown in fig. 18 to 22, the upper part of the front flange portion of the inner shell 11 is overlapped with the depressed area 8 of the front part of the outer shell upper shell 12, the lower part of the front flange portion of the inner shell 11 is overlapped with the depressed area 8 of the front part of the outer shell lower shell 13, the rear part of the outer shell upper shell 12 is overlapped with the upper depressed area 8 of the rear flange portion of the inner shell 11, and the rear part of the outer shell lower shell 13 is overlapped with the lower depressed area 8 of the rear flange portion of the inner shell 11. As shown in fig. 14 and 15, the left and right sides of the outer surface upper case 12 overlap the left and right side depressed areas 8 of the outer surface lower case 13. As shown in fig. 3 to 5 and fig. 11 to 16, the lower side, the upper side, the left side and the right side of the inner profile upper housing 11 are provided with openings, the left side and the right side of the outer profile upper housing 12 are provided with openings, and the lower side of the outer profile lower housing 13 is provided with openings, so that the cross grid 20 is mounted.
As shown in fig. 2, the cross grid 20 includes a horizontal right side grid 21, a horizontal left side grid 22, and a vertical grid 23. As shown in fig. 1, 2 and 17, in which the vertical grill 23 is provided with four through holes, the horizontal right-side grill 21 is provided with two blind holes and two connecting shafts, and the horizontal left-side grill 22 is provided with two blind holes and two connecting shafts. The two connecting shafts of the horizontal right-side grille 21 pass through the corresponding two through holes on the vertical grille 23 and are inserted into the corresponding two blind holes on the horizontal left-side grille 22, and the two connecting shafts of the horizontal left-side grille 22 pass through the corresponding two through holes on the vertical grille 23 and are inserted into the corresponding two blind holes on the horizontal right-side grille 21.
As shown in fig. 10, the foam sandwich foam core 30 includes a front foam 31 and a rear foam 32. The left side, the right side, the lower side and the upper side of the front foam 31 are provided with openings, so that the front foam 31 is respectively fixedly arranged with the left side fixed wooden block 4, the right side fixed wooden block 5, the lower fixed wooden block 6 and the upper fixed wooden block 7. The rear foam 32 is mounted in the rear flange portion of the inner profile housing 11.
As shown in fig. 2, the left side fixed wood block 4, the right side fixed wood block 5, the lower fixed wood block 6 and the upper fixed wood block 7 are respectively provided with corresponding openings, so that the cross grille is installed and fixed.
Because the flanging part at the rear part of the inner molded surface shell 11 is provided with the sinking area 8, if the inner molded surface shell 11 is combined with the rear foam 32 after being solidified and molded, the rear foam 32 needs to be further decomposed into more smaller components, the workload is increased, and the operation is not easy, so that a combined tool is manufactured, and the rear foam 32 and the inner molded surface shell 11 are solidified and molded together after being combined.
The invention also provides a combined air inlet channel forming method, which comprises the following steps: the front foam 31, the rear foam 32, the left fixed wood block 4, the right fixed wood block 5, the lower fixed wood block 6, the upper fixed wood block 7, the right grid 21, the horizontal left grid 22 and the vertical grid 23 are processed respectively, and the outer surface upper shell 12, the outer surface lower shell 13, the rear foam 32 and the inner surface shell 11 are combined and molded through three molding tools. The front foam 31 needs to be wrapped with a layer of adhesive film, and the outer surface lower shell 13 and the outer surface lower shell 12 are wrapped with adhesive films except the outer surface. The front foam 31, the left fixed wood block 4, the right fixed wood block 5, the lower fixed wood block 6, the upper fixed wood block 7, the outer surface lower shell 13 and the outer surface lower shell 12 are sequentially placed on the inner surface shell 11, and are cured after vacuum bag pasting, and are demoulded after curing is completed. And then opening the inner surface shell 11, the outer surface upper shell 12 and the outer surface lower shell 13 at the positions of corresponding grid mounting openings, sequentially mounting the vertical grid 23, the horizontal right grid 21 and the horizontal left grid 22, and adopting structural adhesive bonding, and curing after the bonding is completed to realize the final forming of the air inlet channel.
Briefly describing the above-mentioned operation steps of curing and molding the inner mold shell 11 together with the rear foam 32, a prepreg is laid on the inner mold a according to a predetermined layer in fig. 23, a prepreg of a required length is reserved in a region to be turned up, and each layer of the reserved prepreg is isolated by an isolating film to prevent adhesion of the layers. After the specified layering is finished, the rear foam 32 wrapping a layer of adhesive film is placed at a specified position at the lower part, the reserved prepreg is wrapped, and then the left die e of the lower outer surface and the right die f of the rear outer surface are installed in place. And sequentially placing a left filling mold b and a right filling mold c in the upper designated area, wrapping the reserved prepreg, sequentially installing an upper outer surface mold d, a right positioning block g, a rear positioning block h, a left positioning block k and a front positioning block m in place, curing after pasting a vacuum bag, and demoulding after curing is finished.
The above embodiments are only limited to the explanation and description of the technical solutions of the present invention, but should not be construed as limiting the scope of the claims. It should be clear to those skilled in the art that any simple modification or substitution of the technical solution of the present invention results in a new technical solution that falls within the scope of the present invention.
Claims (6)
1. The combined air inlet is characterized by comprising an air inlet shell (10), a cross grid (20), a foam sandwich (30), a left fixed wood block (4), a right fixed wood block (5), a lower fixed wood block (6) and an upper fixed wood block (7);
the air inlet channel shell (10) comprises an inner surface shell (11), an outer surface upper shell (12) and an outer surface lower shell (13); wherein the flanging part at the rear part of the inner surface shell (11) is provided with a sinking area, the front part of the outer surface upper shell (12) is provided with a sinking area, and the front part, the left side and the right side of the outer surface lower shell (13) are provided with sinking areas; the upper part of the flanging position of the front part of the inner profile shell (11) is overlapped with the sinking region of the front part of the outer profile upper shell (12), the lower part of the flanging position of the front part of the inner profile shell (11) is overlapped with the sinking region of the front part of the outer profile lower shell (13), the rear part of the outer profile upper shell (12) is overlapped with the sinking region of the upper part of the flanging position of the rear part of the inner profile shell (11), the rear part of the outer profile lower shell (13) is overlapped with the sinking region of the lower part of the flanging position of the rear part of the inner profile shell (11), and the left side and the right side of the outer profile upper shell (12) are overlapped with the sinking regions of the left side and the right side of the outer profile lower shell (13); openings are formed in the lower side, the upper side, the left side and the right side of the inner surface shell (11), openings are formed in the left side and the right side of the outer surface upper shell (12), openings are formed in the lower side of the outer surface lower shell (13), and the cross grid (20) is installed;
the cross grid (20) comprises a horizontal right grid (21), a horizontal left grid (22) and a vertical grid (23); the vertical grating (23) is provided with four through holes, the horizontal right grating (21) is provided with two blind holes and two connecting shafts, and the horizontal left grating (22) is provided with two blind holes and two connecting shafts; the two connecting shafts of the horizontal right-side grille (21) penetrate through the corresponding two through holes on the vertical grille (23) and are inserted into the corresponding two blind holes on the horizontal left-side grille (22), and the two connecting shafts of the horizontal left-side grille (22) penetrate through the corresponding two through holes on the vertical grille (23) and are inserted into the corresponding two blind holes on the horizontal right-side grille (21);
the foam sandwich (30) comprises a front foam (31) and a rear foam (32); openings are arranged on the left side, the right side, the lower side and the upper side of the front foam (31), so that the front foam (31) is respectively fixed with the left fixed wood block (4), the right fixed wood block (5), the lower fixed wood block (6) and the upper fixed wood block (7); the rear foam (32) is arranged in the flanging part of the rear part of the inner molded surface shell (11);
the left side fixed wood block (4), the right side fixed wood block (5), the lower fixed wood block (6) and the upper fixed wood block (7) are respectively provided with corresponding openings, so that the cross grille is installed and fixed.
2. A modular air scoop according to claim 1, characterized in that the inner profile shell (11) has a solid laminate structure under the front part.
3. A combined air inlet according to claim 1, characterized in that the air inlet shell (10) is glued to the foam, the wood block is glued to the air inlet shell (10), the cross grid (20) is glued to the wood block, the vertical grid (23) is glued to the horizontal right grid (21) and the horizontal left grid (22), so that the cross grid (20) is formed.
4. A combined air inlet according to claim 1, characterized in that the rear foam (32) is combined with the inner face housing (11) and cured together.
5. The method of claim 1, wherein the shaping process is as follows: respectively processing a front foam (31), a rear foam (32), a left fixed wood block (4), a right fixed wood block (5), a lower fixed wood block (6), an upper fixed wood block (7), a right grid (21), a horizontal left grid (22) and a vertical grid (23), and completing the combined molding of an outer surface upper shell (12), an outer surface lower shell (13), the rear foam (32) and an inner surface shell (11) through three molding tools; wrapping a layer of adhesive film on the front foam (31), and wrapping the adhesive film on the other surfaces except the outer surface of the outer surface lower shell (13) and the outer surface lower shell (12); sequentially placing a front foam (31), a left fixed wood block (4), a right fixed wood block (5), a lower fixed wood block (6), an upper fixed wood block (7), an outer surface lower shell (13) and an outer surface lower shell (12) on the inner molded surface shell (11), curing after pasting a vacuum bag, and demolding after curing is completed; and then opening the inner surface shell (11), the outer surface upper shell (12) and the outer surface lower shell (13) at the positions of corresponding grid mounting openings, sequentially mounting a vertical grid (23), a horizontal right grid (21) and a horizontal left grid (22), and adopting structural adhesive bonding, curing after the bonding is finished, so as to realize final forming of the air inlet channel.
6. The method for forming the combined air inlet channel according to claim 5, wherein the inner surface shell (11) and the rear foam (32) are cured and formed together, and the operation steps comprise the steps of paving the prepreg on the inner surface die (a) according to a specified layer, reserving the prepreg with the required length for wrapping back in a region needing flanging, and isolating each layer of reserved prepreg by using an isolating film to prevent the adhesion of the layers; after the laying according to the stipulation is finished, placing rear foam (32) wrapping a layer of adhesive film at a designated position at the lower part, wrapping reserved prepreg, and then installing a left die (e) of the lower outer profile and a right die (f) of the rear outer profile in place; and sequentially placing a left filling mold (b) and a right filling mold (c) in an upper designated area, wrapping the reserved prepreg, sequentially installing an upper outer surface mold (d), a right positioning block (g), a rear positioning block (h), a left positioning block (k) and a front positioning block (m) in place, curing after pasting a vacuum bag, and demolding after curing is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111525676.9A CN116262544A (en) | 2021-12-14 | 2021-12-14 | Combined air inlet channel and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111525676.9A CN116262544A (en) | 2021-12-14 | 2021-12-14 | Combined air inlet channel and forming method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116262544A true CN116262544A (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111525676.9A Pending CN116262544A (en) | 2021-12-14 | 2021-12-14 | Combined air inlet channel and forming method thereof |
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| Country | Link |
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| CN (1) | CN116262544A (en) |
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2021
- 2021-12-14 CN CN202111525676.9A patent/CN116262544A/en active Pending
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