CN110307182B - Carbon fiber and expansion material combined duct fan dryer and forming method thereof - Google Patents
Carbon fiber and expansion material combined duct fan dryer and forming method thereof Download PDFInfo
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- CN110307182B CN110307182B CN201910592847.6A CN201910592847A CN110307182B CN 110307182 B CN110307182 B CN 110307182B CN 201910592847 A CN201910592847 A CN 201910592847A CN 110307182 B CN110307182 B CN 110307182B
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- 239000000463 material Substances 0.000 title claims abstract description 71
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 37
- 230000007704 transition Effects 0.000 claims description 17
- 239000003822 epoxy resin Substances 0.000 claims description 14
- 229920000647 polyepoxide Polymers 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 12
- 230000008719 thickening Effects 0.000 claims description 7
- 238000005728 strengthening Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
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- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
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- 238000007493 shaping process Methods 0.000 abstract description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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- 230000035939 shock Effects 0.000 description 1
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
-
- 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
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/545—Ducts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a carbon fiber and expansion material combined type duct fan dryer, including the barrel and install two fixed rings at the barrel both ends respectively, the barrel comprises annular inner wall and annular outer wall connection, annular inner wall and annular outer wall are laminated in proper order along thickness direction by multilayer carbon fiber material and are constituted, annular inner wall and annular outer wall opposite border all are connected with same fixed ring, all fill between annular inner wall and annular outer wall and the fixed ring, and between annular inner wall and annular outer wall's the multilayer carbon fiber material all have the epoxy that is used for solidification bonding shaping, the cooperation forms annular inner chamber between annular inner wall and the annular outer wall, it has expansion material to fill in the annular inner chamber. When the air duct is manufactured, the air duct can be integrally bonded and formed at one time through the die, the weight of the air duct can be reduced, the air duct is slightly increased, the corrosion resistance and the noise resistance of the air duct are improved, and the production process of the air duct is simplified.
Description
Technical Field
The invention relates to the field of duct fan air cylinders, in particular to a carbon fiber and expansion material combined duct fan air cylinder and a forming method thereof.
Background
The duct fan wind barrel is a main wind guiding device in a fan, and is commonly a flexible wind barrel made of canvas, artificial leather, plastic, rubber and the like, and a metal wind barrel made of iron sheets, steel plates and aluminum plates. The flexible air duct is light in weight and simple to connect and suspend, but the flexible air duct is low in strength, easy to deform, high in ventilation resistance and small in application range; the strength of the metal air duct can meet the requirements, the ventilation resistance is smaller, the metal air duct is more commonly used in a fan, but the weight of the metal air duct is larger, so that the running load of the fan is larger, the corrosion resistance is poor, the influence of humidity and acid-base environment is large, the noise in running is larger, and when the metal air duct is made of metal materials, the plate needs to be subjected to cutting, curling, welding and other treatments, so that the production process of the metal air duct is more complex, and various defects exist in production and actual use.
The carbon fiber composite material is prepared by taking resin as a matrix and carbon fiber as a reinforcing material; the novel fiber material of high-strength and high-modulus fiber with carbon content more than 90% is a microcrystalline graphite material obtained by stacking organic fiber such as flaky graphite microcrystalline along the axial direction of the fiber and performing carbonization and graphitization treatment. The carbon fiber is 'soft outside and rigid inside', has lighter mass than metal aluminum, has higher strength than steel, has the characteristics of corrosion resistance and high modulus, has the soft processability of textile fibers, and is an important material in national defense and military industry and civil use. In recent years, with the continuous development of new technologies, the requirements on materials are increasing, and the carbon fiber has the advantages of high strength, excellent heat resistance, excellent thermal shock resistance, low thermal expansion coefficient (small deformation), small heat capacity, small specific gravity, excellent corrosion resistance, excellent radiation resistance and the like, and is widely applied to structures such as aerospace, impellers and the like, but the new excellent material such as the carbon fiber is not applied to fan wind barrels in the prior art.
Disclosure of Invention
The invention provides a carbon fiber and expansion material combined duct fan dryer and a forming method thereof, which are used for solving the problem that the conventional duct fan dryer is difficult to meet the use requirement.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a carbon fiber and expansion material combined type duct fan dryer, includes the barrel and installs two fixed rings at the barrel both ends respectively, and fixed ring pastes to establish on the round mouth border of barrel tip, has seted up the mounting hole on the lateral wall of barrel, is equipped with the transition pipe in the mounting hole, the barrel comprises annular inner wall and annular outer wall connection, annular inner wall and annular outer wall are laminated in proper order along the thickness direction by multilayer carbon fiber material and are constituted, and annular inner wall and annular outer wall opposite border all are connected with same fixed ring, all fill between annular inner wall and annular outer wall and the fixed ring to and between annular inner wall and annular outer wall's the multilayer carbon fiber material all have the epoxy that is used for solidification bonding shaping, cooperate between annular inner wall and the annular outer wall and form annular inner chamber, the intussuseption is filled with expansion material.
Preferably, a reinforcing ring made of carbon fiber is clamped in the fixing ring, and the axis of the reinforcing ring coincides with the axis of the fixing ring.
Preferably, the inside of annular inner wall and annular outer wall also presss from both sides and is equipped with the strengthening ring, and annular inner wall and annular outer wall's strengthening ring all set up with fixed ring parallel arrangement, and the strengthening ring is filled between adjacent two-layer carbon fiber material and is glued through the epoxy solidification.
Preferably, when the annular inner wall and the annular outer wall are respectively provided with one reinforcing ring, the reinforcing rings are positioned at the middle parts of the annular inner wall and the annular outer wall along the axial direction of the cylinder, and when the annular inner wall and the annular outer wall are provided with a plurality of reinforcing rings, the reinforcing rings are uniformly distributed at intervals along the axial direction of the cylinder.
Preferably, the inside of annular inner wall and annular outer wall presss from both sides respectively and is equipped with a plurality of carbon fiber reinforced bars to inside annular inner wall and the annular outer wall forms a plurality of strengthening ribs, all is filled with epoxy between carbon fiber reinforced bars and the adjacent two-layer carbon fiber material.
Preferably, the plurality of reinforcing ribs of annular inner wall and annular outer wall set up along the even interval of circumference of dryer, and the length direction of all reinforcing ribs all sets up along the axial of dryer.
Preferably, the carbon fiber material is one of carbon fiber prepreg, carbon fiber dry cloth, carbon fiber powder and carbon fiber unidirectional yarn.
Preferably, a thickened module made of carbon fiber is connected to one side of the mounting hole, facing the transition pipe, and is sleeved on the transition pipe to increase the length of the transition pipe sleeved in the mounting hole.
A shaping method of the composite duct fan air duct of carbon fiber and expansion material, make the mould in advance, offer the annular cavity that matches with appearance of the air duct in the said mould, lay the carbon fiber material layer by layer on the inner and outer sidewall of the annular cavity separately, and place the fixed ring at its axial both ends of annular cavity, pack epoxy resin between carbon fiber material of every layer and carbon fiber material and fixed ring, then pack the expansion material between the opposite carbon fiber material of the inside and outside, heat the mould to 120-150 deg.C and keep warm, make epoxy resin solidify, can get carbon fiber and expansion material composite duct fan air duct.
Preferably, the die comprises a base, an inner die ring plate and an outer die ring plate are arranged on the base, the inner die ring plate and the outer die ring plate are matched to form an annular cavity, a top die plate is arranged on an end cover of the inner die ring plate and the outer die ring plate, which is far away from the base, a plurality of locking bolts are vertically screwed on the top die plate, all the locking bolts are inserted on the base to limit the displacement of the top die plate, and through holes matched with the mounting holes are formed in the outer die ring plate.
According to the technical scheme, the invention has the beneficial effects that:
the carbon fiber and expansion material composite duct fan dryer provided by the invention does not adopt the existing flexible material or metal material, but forms the inner wall and the outer wall of the dryer barrel by a carbon fiber material lamination mode, and forms an annular inner cavity filled with expansion material in the barrel, wherein the weight of the carbon fiber material and the expansion material is far smaller than that of the common metal material, so that the weight of the dryer can be greatly reduced, compared with the common metal dryer, the weight of the dryer can be reduced by more than 85%, the strength of the carbon fiber material is higher, the strength of the dryer can reach the strength of the existing metal dryer under the cooperation of curing and bonding of epoxy resin and expansion and jacking of the expansion material from the inner side, and the reinforcing ring of the carbon fiber material is also added in a fixed ring, so that the total weight of the dryer is further reduced, and the strength of the dryer is improved; in addition, the invention can further add the reinforcing ring in the air duct wall and fill the reinforcing ribs, so that the strength of the air duct can overtake the existing metal air duct, and the weight of the air duct can be reduced on the premise of ensuring the strength, thereby reducing the running load of a fan of the fan.
According to the invention, as the air duct wall is made of carbon fiber materials, the corrosion resistance of the air duct is greatly improved, the air duct is applicable to various humid and acid-base environments, and the expansion materials filled in the air duct wall have the effects of vibration absorption and sound insulation, so that the noise in the running process of the fan can be reduced; the carbon fiber material is bonded with the fixed ring through the curing effect of the epoxy resin when heated, and the expansion material is expanded to jack the air duct from the inner side when heated, so that the whole air duct of the fan can be heated and cured and molded once through the die, the processes of cutting, curling, welding and the like on the plate are not needed, and the structures such as the mounting holes and the transition pipe on the side wall of the air duct can also adopt carbon fiber and be cured and molded simultaneously with the air duct body, and the later machining is not needed.
Drawings
FIG. 1 is a schematic diagram of a wind tunnel structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a wind tunnel along the axial direction;
FIG. 3 is a schematic view of the structure of the reinforcing rings and ribs in the wind tunnel;
Fig. 4 is a schematic view of the structure of the mold after being cut away.
The marks in the figure: 1. the device comprises a cylinder body, 2, a fixed ring, 3, a thickening module, 4, a mounting hole, 5, a transition pipe, 6, a carbon fiber material, 7, an expansion material, 8, a reinforcing ring, 9, a reinforcing rib, 10, an annular cavity, 11, a base, 12, an inner mold ring plate, 13, an outer mold ring plate, 14, a top mold plate, 15 and a locking bolt.
Detailed Description
Referring to the drawings, the specific embodiments are as follows:
As shown in FIG. 1, a carbon fiber and expansion material combined type duct fan dryer, including barrel 1 and install two fixed ring 2 at barrel 1 both ends respectively, fixed ring 2 pastes and establishes on the round mouth border of barrel 1 tip, be used for increasing the intensity of dryer, mounting hole 4 has been seted up on the lateral wall of barrel 1, be equipped with transition pipe 5 in the mounting hole 4, be used for the other parts of air feed barrel and fan to connect fixedly, be connected with the thickening module 3 of carbon fiber material in the one side of mounting hole 4 towards transition pipe 5 in this embodiment, the thickening module 3 cover is established on transition pipe 5, in order to increase the length that transition pipe 5 cover was established in mounting hole 4, avoid because the wall thickness of dryer is thinner and lead to the condition that the installation intensity of transition pipe 5 is not enough.
As shown in fig. 2, the cylinder 1 is formed by connecting an annular inner wall and an annular outer wall, the annular inner wall and the annular outer wall are formed by sequentially attaching multiple layers of carbon fiber materials 6 along the thickness direction, in this embodiment, the carbon fiber materials 6 are one of carbon fiber prepregs, carbon fiber dry cloth, carbon fiber powder and carbon fiber unidirectional wires, opposite edges of the annular inner wall and the annular outer wall are connected with the same fixed ring 2, epoxy resin used for curing, bonding and forming is filled between the annular inner wall and the annular outer wall and between the annular inner wall and the annular outer wall of the multi-layer carbon fiber materials 6, an annular inner cavity is formed by matching between the annular inner wall and the annular outer wall, an expansion material 7 is filled in the annular inner cavity, and the expansion material 7 adopts a common thermal expansion material, so that the cylinder is light in weight and has the effects of vibration absorption and sound insulation.
As shown in FIG. 3, a reinforcing ring 8 made of carbon fiber is clamped in the fixed ring 2, the axis of the reinforcing ring 8 coincides with the axis of the fixed ring 2, the reinforcing rings 8 are also clamped in the annular inner wall and the annular outer wall, the reinforcing rings 8 of the annular inner wall and the annular outer wall are all arranged in parallel with the fixed ring 2, the reinforcing rings 8 are filled between two adjacent layers of carbon fiber 6 and are bonded through epoxy resin curing, so that the strength of the air duct is improved, the reinforcing rings 8 of the annular inner wall and the annular outer wall are respectively one in FIG. 3, the reinforcing rings 8 are positioned in the middle of the axial direction of the air duct 1, and the reinforcing rings 8 of the annular inner wall and the annular outer wall can be arranged in a plurality according to the axial length of the air duct in practice, and the reinforcing rings 8 are uniformly distributed at intervals along the axial direction of the air duct 1, so that the stress is more reasonable.
As shown in fig. 3, a plurality of carbon fiber reinforced bars are further clamped in the annular inner wall and the annular outer wall, so that a plurality of reinforcing ribs 9 are formed in the annular inner wall and the annular outer wall, epoxy resin is filled between the carbon fiber reinforced bars and the adjacent two layers of carbon fiber materials 6, the carbon fiber reinforced bars are firmly adhered in the air duct wall, the reinforcing ribs 9 are uniformly arranged at intervals along the circumferential direction of the air duct in the embodiment, and the length directions of all the reinforcing ribs 9 are all arranged along the axial direction of the air duct, so that the reinforcing ribs 9 can obviously improve the strength of the air duct.
A molding method of a carbon fiber and expansion material composite duct fan dryer comprises the steps of manufacturing a mold in advance, providing an annular cavity 10 matched with the shape of the dryer, paving carbon fiber materials 6 layer by layer on the inner side wall and the outer side wall of the annular cavity 10, placing fixed rings 2 at the two ends of the annular cavity 10 along the axial direction, filling epoxy resin between the carbon fiber materials 6 and the fixed rings 2, then filling expansion materials 7 between the carbon fiber materials 6 opposite to the inner side and the outer side, heating the mold to 120-150 ℃ and preserving heat, solidifying the epoxy resin, and fully heating and expanding the expansion materials 7 in the heating process, so that the carbon fiber and expansion material composite duct fan dryer can be obtained.
As shown in fig. 4, the mold used in this embodiment includes a base 11, an inner mold ring plate 12 and an outer mold ring plate 13 are vertically disposed on the base 11, the inner mold ring plate 12 and the outer mold ring plate 13 are assembled to form an annular cavity 10, a top mold plate 14 is disposed on an end cover of the inner mold ring plate 12 and the outer mold ring plate 13 far away from the base 11, a plurality of locking bolts 15 are vertically screwed on the top mold plate 14, all the locking bolts 15 are inserted on the base 11 to limit displacement of the top mold plate 14, in this embodiment, the top mold plate 14 is an annular plate, and the inner diameter is smaller than the inner mold ring plate 12, and the locking bolts 15 are located on the inner side of the inner mold ring plate 12, so that space can be saved, and when the mold is compact in practice, the top mold plate 14 can be made into an annular structure with an outer diameter larger than the outer mold ring plate 13, and the locking bolts 15 are disposed on the outer side of the outer mold ring plate 13. As shown in fig. 4, through holes matched with the mounting holes 4 are formed in the outer mold ring plate 13, and molds matched with the transition pipe 5 and the thickening modules 3 can be arranged at the through holes, so that the transition pipe 5 and the thickening modules 3 and the air duct are integrally formed by one-time heating and bonding.
Claims (6)
1. The utility model provides a carbon fiber and expansion material combined type duct fan dryer, includes barrel (1) and installs respectively at two fixed rings (2) at barrel (1) both ends, and fixed ring (2) paste and establish on the round mouth border of barrel (1) tip, has seted up mounting hole (4) on the lateral wall of barrel (1), is equipped with transition pipe (5) in mounting hole (4), its characterized in that: the cylinder body (1) is formed by connecting an annular inner wall and an annular outer wall, the annular inner wall and the annular outer wall are formed by sequentially attaching multiple layers of carbon fiber materials (6) along the thickness direction, opposite edges of the annular inner wall and the annular outer wall are connected with the same fixed circular ring (2), epoxy resin for curing and bonding formation is filled between the annular inner wall and the annular outer wall and between the multiple layers of carbon fiber materials (6) of the annular inner wall and the annular outer wall, an annular inner cavity is formed by matching the annular inner wall and the annular outer wall, and an expansion material (7) is filled in the annular inner cavity;
a reinforcing ring (8) made of carbon fiber is clamped inside the fixed circular ring (2), and the axis of the reinforcing ring (8) coincides with the axis of the fixed circular ring (2);
The inside of the annular inner wall and the annular outer wall is also clamped with a reinforcing ring (8), the reinforcing rings (8) of the annular inner wall and the annular outer wall are arranged in parallel with the fixed circular ring (2), and the reinforcing rings (8) are filled between two adjacent layers of carbon fiber materials (6) and are solidified and bonded through epoxy resin;
The inside of the annular inner wall and the annular outer wall are respectively clamped with a plurality of carbon fiber reinforced strips, so that a plurality of reinforcing ribs (9) are formed inside the annular inner wall and the annular outer wall, and epoxy resin is filled between the carbon fiber reinforced strips and two adjacent layers of carbon fiber materials (6);
one side of the mounting hole (4) facing the transition pipe (5) is connected with a thickening module (3) made of carbon fiber materials, and the thickening module (3) is sleeved on the transition pipe (5) to increase the length of the transition pipe (5) sleeved in the mounting hole (4).
2. The carbon fiber and intumescent composite ducted fan duct of claim 1, wherein: when the annular inner wall and the annular outer wall are respectively provided with the reinforcing rings (8), the reinforcing rings (8) are positioned at the middle parts of the annular inner wall and the annular outer wall along the axial direction of the cylinder body (1), and when the annular inner wall and the annular outer wall are provided with a plurality of reinforcing rings (8), the reinforcing rings (8) are uniformly distributed at intervals along the axial direction of the cylinder body (1).
3. The carbon fiber and intumescent composite ducted fan duct of claim 1, wherein: a plurality of strengthening ribs (9) of annular inner wall and annular outer wall set up along the even interval of circumference of dryer, and the axial setting of dryer is all followed to the length direction of all strengthening ribs (9).
4. The carbon fiber and intumescent composite ducted fan duct of claim 1, wherein: the carbon fiber material (6) adopts one of carbon fiber prepreg, carbon fiber dry cloth, carbon fiber powder and carbon fiber unidirectional yarn.
5. The method for forming the carbon fiber and expansion material composite ducted fan duct according to claim 1, wherein the method comprises the following steps: the method comprises the steps of manufacturing a die in advance, arranging an annular cavity (10) matched with the shape of an air duct in the die, paving carbon fiber materials (6) on the inner side wall and the outer side wall of the annular cavity (10) layer by layer, arranging fixed rings (2) at the two ends of the annular cavity (10) along the axial direction of the annular cavity, filling epoxy resin between the carbon fiber materials (6) and the fixed rings (2), then filling expansion materials (7) between the carbon fiber materials (6) opposite to the inner side and the outer side, heating the die to 120-150 ℃ and preserving heat, and solidifying the epoxy resin to obtain the carbon fiber and expansion material composite duct fan air duct.
6. The method for forming the carbon fiber and expansion material composite ducted fan duct according to claim 5, wherein the method comprises the following steps: the die comprises a base (11), an inner die ring plate (12) and an outer die ring plate (13) are arranged on the base (11), an annular cavity (10) is formed by matching the inner die ring plate (12) and the outer die ring plate (13), a top die plate (14) is arranged on an end cover, far away from the base (11), of the inner die ring plate (12) and the outer die ring plate (13), a plurality of locking bolts (15) are vertically screwed on the top die plate (14), and all the locking bolts (15) are inserted on the base (11) to limit the displacement of the top die plate (14), and through holes matched with the mounting holes (4) are formed in the outer die ring plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910592847.6A CN110307182B (en) | 2019-07-03 | 2019-07-03 | Carbon fiber and expansion material combined duct fan dryer and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910592847.6A CN110307182B (en) | 2019-07-03 | 2019-07-03 | Carbon fiber and expansion material combined duct fan dryer and forming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110307182A CN110307182A (en) | 2019-10-08 |
| CN110307182B true CN110307182B (en) | 2024-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910592847.6A Active CN110307182B (en) | 2019-07-03 | 2019-07-03 | Carbon fiber and expansion material combined duct fan dryer and forming method thereof |
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| Country | Link |
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