CN111469441B - Guide plate layering process - Google Patents
Guide plate layering process Download PDFInfo
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- CN111469441B CN111469441B CN202010322967.7A CN202010322967A CN111469441B CN 111469441 B CN111469441 B CN 111469441B CN 202010322967 A CN202010322967 A CN 202010322967A CN 111469441 B CN111469441 B CN 111469441B
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- Prior art keywords
- prepreg
- layer
- guide plate
- baffle
- layup
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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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3064—Trains
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention relates to the technical field of production of rail transit equipment, in particular to a guide plate layering process, which comprises the following steps: determining a first position on the prepreg layup at which a recessed area is formed; cutting the prepreg paving layer at a first position to form a hole; plugging the hole by an additional position supplementing structure, and arranging a required concave area on the position supplementing structure; and shaping the prepreg paving layer and the filling structure together through an autoclave molding process. According to the invention, the main body part of the plate body and the part for forming the depressed area are differentiated, so that on one hand, the integrity of the plate body is ensured, the shape of the depressed area is richer, the structural diversity of the guide plate is realized, the formation of the depressed area on the guide plate can reduce the wind resistance, and a part of the wind resistance is consumed in the depressed area, so that the service life of the guide plate is prolonged.
Description
Technical Field
The invention relates to the technical field of production of rail transit equipment, in particular to a guide plate layering process.
Background
At present, the guide plates of metal structures are adopted in the existing rail transit equipment, and the guide plates are arranged, so that the guide effect of gas can be achieved, and the lifting force and the like of a vehicle body due to airflow are changed. In the process of using the metal guide plate structure, the required use requirements can be met, but the weight of the metal guide plate structure is large, and the development of light weight of rail transit is limited to a certain extent.
In order to solve the problems, metal materials are replaced by composite materials in the prior art, the diversion plate body structure with high strength and stable structure is formed, but only a flat plate body surface can be formed in the composite material forming process, and the diversification of the plate body structure is limited to a certain extent.
In view of the above circumstances, the inventor of the present invention has actively studied and innovated a guide plate layering process based on the practical experience and professional knowledge of the product engineering application for many years and with the application of the theory, so as to create a guide plate layering process, which is more practical.
Disclosure of Invention
The invention provides a guide plate layering process, which can form a concave area on the windward side of a guide plate body, thereby realizing the diversification of the plate body.
In order to achieve the purpose, the invention adopts the technical scheme that:
a baffle layering process, comprising the steps of:
s1: determining a first position on the prepreg layup at which a recessed area is formed;
s2: cutting the prepreg paving layer at the first position to form a hole;
s3: plugging the hole by an additional position supplementing structure, and arranging a required concave area on the position supplementing structure;
s4: and shaping the prepreg paving layer and the filling structure together through an autoclave molding process.
Further, the position supplementing structure completes shaping before plugging the hole.
Further, the position supplementing structure is shaped through an autoclave forming process
Furthermore, mend the position structure and spread the layer for the preimpregnation material equally, the mould surface that is used for carrying out the support to the preimpregnation material of guide plate main part spreads the layer is provided with protruding structure, mend the preimpregnation material of position structure and spread the layer cover in protruding structural, through autoclave molding technology with the common shaping of guide plate main part.
Further, the edge of the filling structure is clamped between two layers of prepreg paving layers of the deflector main body.
Further, the local bending of the prepreg paving layer forms an installation convex edge of the deflector main body.
Furthermore, at least one layer of reinforced paving layer is added at the bending angle of the local bending.
Further, when the reinforced paving layer is larger than or equal to two layers, the edges of all the layers are arranged in a staggered mode, and a gentle slope is formed after forming relative to the surface of the guide plate.
And furthermore, a connecting and laying layer is arranged on the top prepreg laying layer for forming the deflector main body, the connecting and laying layer covers at least part of the formed structure on the prepreg laying layer, and the formed structure is attached to the prepreg laying layer through the extension at the edge after the covering.
Further, a tailor is arranged on the top prepreg laying layer for forming the deflector main body, a bendable part is obtained through the tailor, and at least part of a formed structure placed on the prepreg laying layer is covered through the bendable part.
Through the technical scheme, the invention has the beneficial effects that:
according to the invention, the main body part of the plate body and the part for forming the depressed area are differentiated, so that on one hand, the integrity of the plate body is ensured, the shape of the depressed area is richer, the structural diversity of the guide plate is realized, the formation of the depressed area on the guide plate can reduce the wind resistance, and a part of the wind resistance is consumed in the depressed area, so that the service life of the guide plate is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow diagram of a baffle layering process;
FIG. 2 is a schematic view of the arrangement position and arrangement mode of the padding structure relative to the prepreg layup;
FIG. 3 is a schematic view of a partial bend of a prepreg ply;
FIG. 4 is a schematic view of the arrangement position and arrangement mode of the connection layer;
FIG. 5 is a schematic view showing a process of forming a bendable portion by a tailor;
reference numerals: the prepreg paving layer comprises a prepreg paving layer 1, a hole 11, a mounting convex edge 12, a reinforcing paving layer 13, a connecting paving layer 14, a tailor 15, a bendable part 16, a repairing structure 2, a convex edge part 21 and a molded structure 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
A baffle layering process, as shown in fig. 1, comprising the steps of:
s1: determining a first position of a recessed area formed on the prepreg layup 1;
s2: cutting the prepreg paving layer at a first position to form a hole 11;
s3: plugging the hole 11 by the additional position supplementing structure 2, and arranging a required concave area on the position supplementing structure 2;
s4: and shaping the prepreg paving layer 1 and the repair structure 2 together through an autoclave molding process.
In the laying process of the prepreg laying layer 1, in order to ensure the smoothness of the whole plate, a concave structure is difficult to form through the bending of local laying layers, and because the method can cause serious wrinkles of the whole laying layer to influence the final forming effect, in the embodiment of the invention, the main body part of the guide plate body and the part for forming the concave area are differentiated, so that the integrity of the plate body is ensured, the shape of the concave area is richer, and the structural diversity of the guide plate is realized.
As the optimization of the above embodiment, the position supplementing structure 2 completes the shaping before plugging the hole 11, and the position supplementing structure 2 is shaped by the autoclave forming process, in this way, only the convex structure with the contour equal to that of the concave region needs to be arranged on the mold, the position supplementing prepreg for forming the concave region is covered on the convex structure, and other parts are arranged as flat as possible, the complete concave region can be formed after the autoclave forming, and the convex edge part 21 located around the concave region is connected with the guide plate main body structure through the convex edge part 21, so that the connection between the guide plate main body and the concave region can be realized through the secondary autoclave forming.
As another acquisition mode of the repair structure 2, the repair structure 2 is also a prepreg paving layer, a convex structure is arranged on the surface of a mold for supporting the prepreg paving layer 1 of the guide plate main body, the prepreg paving layer of the repair structure 2 covers the convex structure, and the repair structure and the guide plate main body are formed together through an autoclave forming process. This kind of mode carries out the effectual manufacturing procedure that has reduced of fashioned mode for mending the position structure in advance, has increased the manufacturing cost of mould to a certain extent, but this kind of cost accessible volume production is equallyd divide, and through the joint molding of each preimpregnation material layer, has guaranteed the reliability of junction, has promoted the wholeness of guide plate, and after firm the connection, formed local bodiness around the depressed area, also played the effect of local reinforcement.
As shown in fig. 2, the edge of the repair structure is sandwiched between two prepreg layers of the deflector body, in this embodiment, the edge is the convex edge portion 21, and compared with the connection with the prepreg layer located at the outermost layer, the structural strength of the concave portion can be further improved by a manner of coating the edge of the repair structure 2, and the aesthetic property of the entire deflector can also be improved.
As shown in fig. 3, the mounting flange 12 of the deflector body is preferably formed by partially bending the prepreg lay-up 1. In a preferable scheme, the structure of the guide plate is distinguished through adjustment of the shape of the laying layer, the main body part is used for guiding wind, the bent installation convex edge 12 is used for installing the guide plate main body, and the integrated guide plate main body is formed through the mode. Wherein, increase at least one deck and strengthen spreading layer 13 at the bent angle department of local bending, in the in-process of using, because the bent angle department atress condition that local bending formed is comparatively complicated, in order to guarantee this partial intensity, can realize above-mentioned purpose through the mode that sets up and strengthen spreading layer 13, wherein, strengthen spreading layer 13's area and regard as the whole bent angle department of covering at least, of course, because installation protruding edge 12 width itself is less, also can make and strengthen spreading layer 13 and cover this scope, thereby obtain higher intensity after seting up the connection hole site behind this part shaping.
As a preferable example of the above embodiment, with reference to fig. 3, when the reinforced ply 13 is two or more plies, the edges of the plies are offset and a gentle slope is formed with respect to the baffle plate surface after molding. In the use, because local reinforcement is spread layer 13 and is cracked because of the shearing force easily at the edge, consequently when reinforcement is spread layer 13 more than or equal to two-layer, through the dislocation set of edge, can effectually solve above-mentioned problem behind the shaping, avoid the surface defect in the use to form.
As shown in fig. 4, it is preferable that a connection layer 14 is provided on the top prepreg layer for molding the deflector body, and the connection layer 14 covers at least a part of the molded structure 3 placed on the prepreg layer 1, and is bonded to the prepreg layer 1 by extending at the edge after the covering. In this preferred scheme, form the connection structure who is used for shaping structure 3 through the mode of layering, avoided the use of connecting piece, also avoided the destruction to the guide plate main part simultaneously, can make connection layering 14 carry out effectual fixed to shaping structure 3 through autoclave molding process, wherein, shaping structure 3 is with the strengthening rib that carries out the increase to the guide plate main part as leading, when the strengthening rib forms complete frame, only cover the part of frame through connection layering 14 can. The cross section of the molded structure 3 is preferably in a concave shape, the connecting layer 14 penetrates through the length direction of the molded structure, and the two ends of the connecting layer extend out in the length direction to be attached to the prepreg layer 1, so that the connecting strength can be effectively improved.
As a manner of obtaining the connection layer 14, as shown in fig. 5, a tailor 15 is provided on the top prepreg layer 1 for molding the deflector body, a bendable part 16 is obtained by the tailor, and at least a part of the molded structure placed on the prepreg layer is covered by the bendable part 16, where the bendable part 16 is an implementation form of the connection layer 14, and by changing the layer laying manner, the prepreg and the molded structure 3 can also form a connection area, so as to improve the connection strength of the two after the autoclave molding process is implemented, wherein the molded structure 3 is preferably placed in a concave structure formed by lifting the bendable part, so as to ensure the smoothness of the deflector.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A flow guide plate layering process is characterized by comprising the following steps:
s1: determining a first position on the prepreg layup at which a recessed area is formed;
s2: cutting the prepreg paving layer at the first position to form a hole;
s3: plugging the hole by an additional position supplementing structure, and arranging a required concave area on the position supplementing structure;
s4: shaping the prepreg paving layer and the position supplementing structure together through an autoclave molding process;
and forming a mounting convex edge of the deflector main body by local bending of the prepreg paving layer.
2. The baffle layering process of claim 1, wherein the location supplementing structure completes sizing before plugging the hole.
3. The baffle layering process of claim 2, wherein the padding structure is shaped by an autoclave molding process.
4. The flow guide plate laying process according to claim 1, wherein the filling structure is also a prepreg laying layer, a raised structure is arranged on the surface of a mold for supporting the prepreg laying layer of the flow guide plate main body, the prepreg laying layer of the filling structure covers the raised structure, and the filling structure and the flow guide plate main body are formed together through an autoclave forming process.
5. The baffle layup process of claim 1, wherein edges of the padding structure are sandwiched between two layers of prepreg layup of the baffle body.
6. The baffle layering process of claim 1, wherein at least one layer of reinforcement is added at a partially bent corner.
7. The baffle layering process of claim 6, wherein when the reinforcement layering is greater than or equal to two layers, the edges of each layer are arranged in a staggered manner and form a gentle slope with respect to the baffle plate surface after molding.
8. The deflector paving process according to claim 1, wherein a connection paving layer is arranged on a top prepreg paving layer for molding the deflector body, covers at least part of a molded structure placed on the prepreg paving layer, and is attached to the prepreg paving layer through extension at the edge after covering.
9. The baffle layup process of claim 8, wherein a top prepreg layup used to shape the baffle body has a tailor thereon, a bendable portion being obtained by the tailor, at least a portion of a shaped structure placed on the prepreg layup being covered by the bendable portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322967.7A CN111469441B (en) | 2020-04-22 | 2020-04-22 | Guide plate layering process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322967.7A CN111469441B (en) | 2020-04-22 | 2020-04-22 | Guide plate layering process |
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| Publication Number | Publication Date |
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| CN111469441A CN111469441A (en) | 2020-07-31 |
| CN111469441B true CN111469441B (en) | 2021-10-22 |
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| CN202010322967.7A Active CN111469441B (en) | 2020-04-22 | 2020-04-22 | Guide plate layering process |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100643103B1 (en) * | 2002-08-20 | 2006-11-10 | 미츠비시 레이온 가부시키가이샤 | Method of producing formed product of fiber-reinforced composite material and the formed product |
| US8795567B2 (en) * | 2010-09-23 | 2014-08-05 | The Boeing Company | Method for fabricating highly contoured composite stiffeners with reduced wrinkling |
| CN102582091B (en) * | 2012-01-05 | 2015-09-30 | 中国商用飞机有限责任公司 | Spherical frame of airplane body and manufacturing method thereof |
| CN104484516A (en) * | 2014-12-04 | 2015-04-01 | 江苏恒神纤维材料有限公司 | Method of laying prepreg by aid of trajectory planning software |
| US9731453B2 (en) * | 2015-03-04 | 2017-08-15 | The Boeing Company | Co-curing process for the joining of composite structures |
| CN108350201B (en) * | 2015-10-27 | 2021-07-20 | 东丽株式会社 | Incision prepreg, orthogonal lay-up laminate, and method for producing incision prepreg |
| US10525637B2 (en) * | 2017-03-09 | 2020-01-07 | The Boeing Company | Flat composites having layup features for forming into 3D shapes |
| CN110962366A (en) * | 2019-12-19 | 2020-04-07 | 常州市新创智能科技有限公司 | Guide plate processing technology |
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