CN112339296B - Forming processing method of glass fiber preformed body for RTM (resin transfer molding) - Google Patents
Forming processing method of glass fiber preformed body for RTM (resin transfer molding) Download PDFInfo
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- CN112339296B CN112339296B CN202011000778.4A CN202011000778A CN112339296B CN 112339296 B CN112339296 B CN 112339296B CN 202011000778 A CN202011000778 A CN 202011000778A CN 112339296 B CN112339296 B CN 112339296B
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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
- B29C70/345—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 matched moulds
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Abstract
The invention discloses a forming processing method of a glass fiber preforming body for RTM (resin transfer molding), which comprises the following steps of: step one, preparing a mould, namely confirming that the mould is consistent with a processed product, the surface of the mould has no sundries or residual dirt, and the non-product area at the edge of the lower mould is covered and protected by a protective film. The time of the cloth layer laying process is shortened, and the efficiency and the yield are improved; laying cloth layers to be laid on a profiling mold special for a product layer by layer in advance, spraying a shaping colloid when each layer is laid, compacting and curing to enable the whole layer to have certain rigidity and shape-keeping degree, taking down a preformed body, placing the preformed body in a special storage area, and reserving the preformed body for glue injection molding; compared with the traditional process steps, the layering process is liberated, the substituted preformed body does not restrict the forming period of the product any more, the mold occupying time of a forming mold is reduced, the process is optimized, the efficiency is improved, the cloth layer slipping phenomenon is greatly reduced in the forming process of the preformed body, and the yield is improved.
Description
Technical Field
The invention relates to the technical field of glass fiber reinforced composite material forming, in particular to a forming processing method of a glass fiber preformed body for RTM.
Background
At present, the traditional low-pressure RTM forming process in China needs to lay a fiber cloth layer in a mold firstly and then carry out the subsequent relevant glue injection process; the laying process is complicated, time-consuming and high in efficiency, and when a die is chamfered or the demolding angle is too large, the die assembly process easily causes slippage and dislocation of the cloth layer, so that a defective product is produced, and the production cost is increased.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a method for forming a glass fiber pre-forming body for RTM.
In order to achieve the purpose, the invention adopts the following technical scheme:
a forming processing method of a glass fiber preforming body for RTM comprises the following steps:
step one, preparing a mould, namely confirming that the mould is consistent with a processed product, the surface of the mould has no sundries or residual dirt, and the non-product area at the edge of the lower mould is covered and protected by a protective film;
step two, layering: fully paving the surface of the mold by using a 1270mm6EL closed-mold felt, aligning the cut of the closed-mold felt with a corresponding positioning point of the mold, positioning the lap joint of the closed-mold felt on a plane, aligning the outer edge of the closed-mold felt with the outer edge of the flanging of the mold, strictly exceeding the molding surface of the mold, and exceeding the product surface by 5-8mm;
step three, local reinforcement: laying a layer of woven felt with the width of 100mm and the density of 300 g/square meter at the butt joint of the closed membrane felt, and keeping the width from exceeding a forming surface;
step four, pressing edge strips: laying 2-4 layers of composite felt with the density of 1250 g/square meter and the width of 35mm at the flanging position, aligning the edge pressing strip with the inner wall of the die, keeping the gap between the edge pressing strip and the vertical surface of the die to be less than 5mm, strictly exceeding the molding surface of the die and strictly avoiding cloth shortage;
step five, covering the woven felt: the width is 100mm, the density is 300 g/square meter, the woven felt cover is spread and flanged, the outer edge of the woven felt is aligned with the outer edge of the edge pressing strip, the woven felt is strictly beyond the forming surface of the die, and the cloth is strictly forbidden to be lack;
step six, spraying: after the layering is finished, moving to a spraying workshop, and spraying black gel coats, wherein the dosage of a single gel coat is 8-10 strokes, and the dosage of the gel coat is 0.3kg-0.5kg;
step seven, laying a polyester surface felt: after the spraying is finished, moving to a forming room, removing the protective film, fully laying a layer of black polyester surface felt of 70 g/square meter, completely covering the surface of the product, and aligning the outer edge with the outer edge of the closed-film felt;
step eight, die assembly and curing: aligning the positioning pins, closing the upper die and the lower die, requiring the upper die to be vertically put down when closing the dies, inserting the heating pipe for curing for 20-40min;
step nine, demolding: after curing is finished, the upper die is lifted by using the electric hoist, the upper die and the lower die are separated, a product is taken out, redundant corners are cut off, a tracing mark is pasted, the product is taken out, the curing condition of the adhesive is checked, the product is taken out and lightly placed, and pulling damage is prevented;
step ten, stacking: and after the product is taken out, a label is attached to place the product on a tray in a designated area, the inner side of the product is downward, a foam pad is placed at a designated position at the outer side, and the first product is directly stacked on the product model and is sequentially stacked.
Preferably, the abutting gap of the adjacent closed membrane felts is less than 3mm.
Preferably, the closed-film mat should be laid flat and without overhead, lapped smoothly without lamination, and the laying process is fixed by spraying glue.
Preferably, add the blank holder at the corner fillet department of mould, prevent to lack cloth.
Preferably, when spraying, the spray gun is 80-90cm away from the surface of the mould, and spraying is carried out at a constant speed.
Preferably, when the products are stacked, foam cushion blocks are arranged between every two layers of products.
Preferably, the closed-die felt is a net structure formed by weaving warps and wefts in a criss-cross mode, metal wires are inserted into the net structure, and the inner surface of the die is coated with a magnetic coating.
Preferably, the magnetic coating is prepared by mixing and stirring ceramic paint and samarium-cobalt magnetic fluid according to the proportion of 2.
Compared with the prior art, the invention has the beneficial effects that:
1. the time of the cloth layer laying process is reduced, and the efficiency and the yield are improved;
2. laying cloth layers to be laid on a profiling mold special for a product layer by layer in advance, spraying a shaping colloid when each layer is laid, compacting and curing to enable the whole layer to have certain rigidity and shape-keeping degree, taking down a preformed body, placing the preformed body in a special storage area, and reserving the preformed body for glue injection molding;
3. compared with the traditional process steps, the layering process is liberated, the substituted preformed body does not restrict the molding cycle of the product any more, the mold-occupying time of a molding mold is reduced, the process is optimized, the efficiency is improved, the cloth layer slipping phenomenon is greatly reduced during the molding of the preformed body, and the yield is improved.
Drawings
FIG. 1 is a schematic structural diagram according to the present invention;
fig. 2 is a schematic structural view of a closed-form mat.
In the figure: warp 1, weft 2, metal wire 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.
Example 1
Referring to fig. 1-2, a method of forming a glass fiber preform for RTM includes the steps of:
step one, preparing a mould, namely confirming that the mould is consistent with a processed product, the surface of the mould is free of sundries and residual dirt, and the non-product area at the edge of the lower mould is covered and protected by a protective film;
step two, layering: fully laying the surface of the die by using a 1270mm6EL closed-die felt, aligning the cut of the closed-die felt with the corresponding positioning point of the die, positioning the lap joint of the closed-die felt on a plane, aligning the outer edge of the closed-die felt with the outer edge of the flanging of the die, strictly exceeding the forming surface of the die, and enabling the closed-die felt to exceed the product surface by 5mm;
step three, local reinforcement: laying a layer of woven felt with the width of 100mm and the density of 300 g/square meter at the butt joint of the closed membrane felt, and keeping the width from exceeding a forming surface;
step four, pressing edge strips: laying 2 layers of composite felt with the density of 1250 g/square meter and the width of 35mm at the flanging position, aligning the edge pressing strip with the inner wall of the die, keeping a gap between the edge pressing strip and the vertical surface of the die to be less than 5mm, and keeping from exceeding the forming surface of the die and keeping from lacking cloth;
step five, covering the woven felt: the width is 100mm, the density is 300 g/square meter, the woven felt cover is spread and flanged, the outer edge of the woven felt is aligned with the outer edge of the edge pressing strip, the woven felt is strictly beyond the forming surface of the die, and the cloth is strictly forbidden to be lack;
step six, spraying: after the layering is finished, moving to a spraying workshop, and spraying black gel coats, wherein the dosage of a single gel coat is 8 strokes, and the dosage of the gel coat is 0.3kg;
step seven, laying a polyester surface felt: after the spraying is finished, moving to a forming room, removing the protective film, fully laying a layer of black polyester surface felt of 70 g/square meter to completely cover the surface of the product, wherein the outer edge is aligned with the outer edge of the closed film felt;
step eight, die assembly and solidification: aligning the positioning pins, closing the upper die and the lower die, requiring the upper die to be vertically put down during die closing, inserting the heating pipe and curing for 20min;
step nine, demolding: after curing is finished, the upper die is lifted by using the electric hoist, the upper die and the lower die are separated, the product is taken out, redundant corners are cut off, a tracing mark is pasted, the product is taken out, the curing condition of the adhesive is checked, the product is taken out and lightly placed, and pulling damage is prevented;
step ten, stacking: the product is taken out and then is pasted with a label to place the product on a tray in a designated area, the inner side of the product is downward, a foam pad is placed at a designated position on the outer side, and the first product is directly stacked on the product model and is sequentially stacked.
Adjacent closed film felt butt joint gap is less than 3mm, avoids lacking cloth, and closed film felt lays and should levelly and smoothly not have built on stilts, and the overlap joint is level and smooth not have the stromatolite, and it is fixed to cover the in-process use glue spraying, fixes it temporarily, avoids appearing built on stilts warping condition, adds blank holder strip in the corner fillet department of turning of mould, prevents to lack cloth, and during the spraying, the spray gun is apart from mould surface 80cm, at the uniform velocity spraying, when the product is put things in good order, all places the foam cushion between every layer of product, avoids producing rigid collision between the product.
Example 2
Referring to fig. 1-2, a method of forming a glass fiber preform for RTM includes the steps of:
step one, preparing a mould, namely confirming that the mould is consistent with a processed product, the surface of the mould is free of sundries and residual dirt, and the non-product area at the edge of the lower mould is covered and protected by a protective film;
step two, layering: fully laying the surface of the die by using a 1270mm6EL closed-die felt, aligning the cut of the closed-die felt with the corresponding positioning point of the die, wherein the lap joint of the closed-die felt is required to be on a plane, the outer edge of the closed-die felt is flush with the outer edge of the flanging of the die and strictly exceeds the forming surface of the die, and the closed-die felt exceeds the product surface by 6.5mm;
step three, local reinforcement: laying a layer of woven felt with the width of 100mm and the density of 300 g/square meter at the butt joint of the closed membrane felt, and keeping the width from exceeding a forming surface;
step four, pressing edge strips: laying 3 layers of composite felts with the density of 1250 g/square meter and the width of 35mm at the flanging position, aligning the edge pressing strips with the inner wall of the die, keeping the clearance between the edge pressing strips and the vertical face of the die less than 5mm, strictly exceeding the forming face of the die and strictly avoiding lacking cloth;
step five, covering the woven felt: the width of the woven felt is 100mm, the density is 300 g/square meter, the woven felt is covered and flanged, the outer edge of the woven felt is aligned with the outer edge of the flanging strip, the woven felt is strictly prevented from exceeding the forming surface of the mould, and the cloth is strictly prevented from being lacking;
step six, spraying: after the layering is finished, moving to a spraying workshop, and spraying black gel coats, wherein the dosage of a single gel coat is 9 strokes, and the dosage of the gel coat is 0.4kg;
step seven, laying a polyester surface felt: after the spraying is finished, moving to a forming room, removing the protective film, fully laying a layer of black polyester surface felt of 70 g/square meter to completely cover the surface of the product, wherein the outer edge is aligned with the outer edge of the closed film felt;
step eight, die assembly and solidification: aligning the positioning pins, closing the upper die and the lower die, requiring the upper die to be vertically put down during die closing, inserting the heating pipe and curing for 30min;
step nine, demolding: after curing is finished, the upper die is lifted by using the electric hoist, the upper die and the lower die are separated, the product is taken out, redundant corners are cut off, a tracing mark is pasted, the product is taken out, the curing condition of the adhesive is checked, the product is taken out and lightly placed, and pulling damage is prevented;
step ten, stacking: the product is taken out and then is pasted with a label to place the product on a tray in a designated area, the inner side of the product is downward, a foam pad is placed at a designated position on the outer side, and the first product is directly stacked on the product model and is sequentially stacked.
Adjacent closed film felt butt joint gap is less than 3mm, avoid lacking cloth, closed film felt lays and should level and smooth not have built on stilts, the overlap joint is level and smooth not have the stromatolite, and it is fixed to lay the in-process use spout glue, fix temporarily to it, avoid appearing the condition of built on stilts warpage, add the blank holder strip in the fillet department of turning of mould, prevent to lack cloth, during the spraying, the spray gun is apart from mould surface 85cm, at the uniform velocity spraying, when the product is put things in good order, all place the foam cushion between every layer of product, avoid producing rigid collision between the product.
Example 3
Referring to fig. 1-2, a method for molding a glass fiber preform for RTM includes the steps of:
step one, preparing a mould, namely confirming that the mould is consistent with a processed product, the surface of the mould is free of sundries and residual dirt, and the non-product area at the edge of the lower mould is covered and protected by a protective film;
step two, layering: fully laying the surface of the die by using a 1270mm6EL closed-die felt, aligning the cut of the closed-die felt with the corresponding positioning point of the die, positioning the lap joint of the closed-die felt on a plane, aligning the outer edge of the closed-die felt with the outer edge of the flanging of the die, strictly exceeding the forming surface of the die, and keeping the closed-die felt to exceed the product surface by 8mm;
step three, local reinforcement: laying a layer of woven felt with the width of 100mm and the density of 300 g/square meter at the butt joint of the closed membrane felt, and keeping the width from exceeding a forming surface;
step four, pressing edge strips: laying 4 layers of composite felt with the density of 1250 g/square meter and the width of 35mm at the flanging position, aligning the edge pressing strip with the inner wall of the die, keeping a gap between the edge pressing strip and the vertical surface of the die to be less than 5mm, and keeping from exceeding the forming surface of the die and keeping from lacking cloth;
step five, covering the woven felt: the width is 100mm, the density is 300 g/square meter, the woven felt cover is spread and flanged, the outer edge of the woven felt is aligned with the outer edge of the edge pressing strip, the woven felt is strictly beyond the forming surface of the die, and the cloth is strictly forbidden to be lack;
step six, spraying: after the layering is finished, moving to a spraying workshop, and spraying black gel coats, wherein the dosage of a single gel coat is 10 strokes, and the dosage of the gel coat is 0.5kg;
step seven, laying a polyester surface felt: after the spraying is finished, moving to a forming room, removing the protective film, fully laying a layer of black polyester surface felt of 70 g/square meter, completely covering the surface of the product, and aligning the outer edge with the outer edge of the closed-film felt;
step eight, die assembly and solidification: aligning the positioning pins, closing the upper die and the lower die, requiring the upper die to be vertically put down when closing the dies, inserting the heating pipe and curing for 40min;
step nine, demolding: after curing is finished, the upper die is lifted by using the electric hoist, the upper die and the lower die are separated, a product is taken out, redundant corners are cut off, a tracing mark is pasted, the product is taken out, the curing condition of the adhesive is checked, the product is taken out and lightly placed, and pulling damage is prevented;
step ten, stacking: the product is taken out and then is pasted with a label to place the product on a tray in a designated area, the inner side of the product is downward, a foam pad is placed at a designated position on the outer side, and the first product is directly stacked on the product model and is sequentially stacked.
Adjacent closed film felt butt joint gap is less than 3mm, avoid lacking cloth, closed film felt lays and should level and smooth not have built on stilts, the overlap joint is level and smooth not have the stromatolite, and it is fixed to lay the in-process use spout glue, fix temporarily to it, avoid appearing the condition of built on stilts warpage, add the blank holder strip in the fillet department of turning of mould, prevent to lack cloth, during the spraying, the spray gun is apart from mould surface 90cm, at the uniform velocity spraying, when the product is put things in good order, all place the foam cushion between every layer of product, avoid producing rigid collision between the product.
The closed-die felt is woven by warp 1 and weft 2 vertically and horizontally staggered and forms network structure, and has alternate in this network structure and have metal wire 3, and the mould internal surface is coated with magnetic coating, and magnetic coating is made by ceramic coating and samarium cobalt magnetic current body according to 1 proportion mixing stirring, utilizes the appeal of metal wire 3 and magnetic coating, guarantees that closed-die felt hugs closely on the mould, warpage can not appear, the condition of making somebody a mere figurehead, and ceramic coating and samarium cobalt magnetic current body all have high temperature resistance moreover, satisfy the production needs.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A method for molding a glass fiber preform for RTM, comprising the steps of:
step one, preparing a mould: confirming that the mold is consistent with a processed product, the surface of the mold has no sundries or residual dirt, and the non-product area at the edge of the lower mold is covered and protected by a protective film;
step two, layering: using a 6EL closed-form felt with the width of 1270mm, fully paving the surface of the mold, aligning the cut of the closed-form felt with a corresponding positioning point of the mold, positioning the lap joint of the closed-form felt on a plane, aligning the outer edge of the closed-form felt with the outer edge of the flanging of the mold, strictly exceeding the molding surface of the mold, and exceeding the product surface by 5-8mm; the butt joint gap of the adjacent closed-die felts is less than 3mm; the closed-form felt is laid smoothly without overhead, lapped smoothly without lamination, and is fixed by glue spraying in the laying process; when spraying, the spray gun is 80-90cm away from the surface of the mould, and spraying is carried out at a constant speed; the closed-die felt is in a net structure formed by weaving warps (1) and wefts (2) in a criss-cross mode, metal wires (3) are inserted into the net structure in a penetrating mode, and the inner surface of the die is coated with a magnetic coating;
step three, local reinforcement: a layer with the width of 100mm and the density of 300g/m is additionally paved at the butt joint part of the closed-mould felt 2 Weaving the felt to be strictly beyond the molding surface;
step four, pressing the edge strips: the density of 2-4 layers of the additional layer at the flanging part is 1250g/m 2 The width of the composite felt is 35mm, the blank holder strip is aligned with the inner wall of the mould, the gap between the blank holder strip and the vertical surface of the mould is less than 5mm, the blank holder strip is strictly prevented from exceeding the forming surface of the mould, and the cloth is strictly prevented from being lacking;
step five, covering by using a woven felt: the width of the use is 100mm, and the density is 300g/m 2 Covering and laying a flanging on the woven felt, aligning the outer edge of the woven felt with the outer edge of the edge pressing strip, strictly exceeding the molding surface of the mold, and strictly avoiding cloth shortage;
step six, spraying: after the layering is finished, moving to a spraying workshop, and spraying black gel coats, wherein the dosage of a single gel coat is 8-10 strokes, and the dosage of the gel coat is 0.3kg-0.5kg;
step seven, laying a polyester surface felt: after the spraying is finished, moving the spraying platform to a forming room, removing the protective film, and fully laying a layer with the density of 70g/m 2 The black polyester surface felt completely covers the surface of the product, and the outer edge of the black polyester surface felt is aligned with the outer edge of the closed-die felt;
step eight, die assembly and solidification: aligning the positioning pins, closing the upper die and the lower die, requiring the upper die to be vertically put down when closing the dies, inserting the heating pipe for curing for 20-40min;
step nine, demolding: after curing is finished, the upper die is lifted by using the electric hoist, the upper die and the lower die are separated, a product is taken out, redundant corners are cut off, a tracing mark is pasted, the product is taken out, the curing condition of the adhesive is checked, the product is taken out and lightly placed, and pulling damage is prevented;
step ten, stacking: the product is taken out and then is pasted with a label to place the product on a tray in a designated area, the inner side of the product is downward, a foam pad is placed at a designated position on the outer side, and the first product is directly stacked on the product model and is sequentially stacked.
2. The method as claimed in claim 1, wherein a blank holder is added at the corner of the mold to prevent the lack of the fabric.
3. The method of claim 1, wherein foam spacers are placed between each layer of product when the product is stacked.
4. The method of claim 1, wherein the magnetic coating is formed by mixing and stirring a ceramic coating and a samarium cobalt magnetic fluid in a ratio of 2.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693409A (en) * | 2009-10-30 | 2010-04-14 | 哈尔滨工业大学 | Dry preparation process of fibre reinforced composite tetrahedral lattice batten board |
| WO2017021329A1 (en) * | 2015-07-31 | 2017-02-09 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Method and system for producing a three-dimensional fiber-reinforced part using a modular tool mold |
| CN107511957A (en) * | 2017-07-21 | 2017-12-26 | 浙江工业大学 | A kind of electronic racing car shell monomer Auto-body manufacturing method and its turn over former |
| CN111113951A (en) * | 2020-01-03 | 2020-05-08 | 中国电子科技集团公司第十四研究所 | Integral forming manufacturing method of lightweight carbon fiber case |
| CN111546666A (en) * | 2020-05-12 | 2020-08-18 | 安徽泰乐玛科技有限公司 | Manufacturing method of large-scale wind driven generator cabin cover |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120315455A1 (en) * | 2010-02-23 | 2012-12-13 | Toray Industries, Inc. | Preform and method for manufacturing the same |
| CN102092135A (en) * | 2010-12-13 | 2011-06-15 | 中国航空工业集团公司北京航空材料研究院 | Method for improving rigidity of wing surface structure of composite material |
| CN105965911A (en) * | 2016-06-16 | 2016-09-28 | 悌埃保温制品（上海）有限公司 | Manufacturing technology of fiberglass reinforced plastic protective layer outside thermal insulation layer |
| CN107471679B (en) * | 2017-08-08 | 2020-05-15 | 惠州市海龙模具塑料制品有限公司 | Method for manufacturing carbon fiber composite material |
| JP7096106B2 (en) * | 2018-08-28 | 2022-07-05 | 株式会社Subaru | Preform shaping method and composite material molding method |
| CN109624198A (en) * | 2018-12-10 | 2019-04-16 | 重庆大学 | A kind of fiber cloth composite material forming method |
| CN110181833A (en) * | 2019-05-29 | 2019-08-30 | 郝鹏翔 | A kind of lightweight prepreg battery case and preparation method thereof |
-
2020
- 2020-09-22 CN CN202011000778.4A patent/CN112339296B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693409A (en) * | 2009-10-30 | 2010-04-14 | 哈尔滨工业大学 | Dry preparation process of fibre reinforced composite tetrahedral lattice batten board |
| WO2017021329A1 (en) * | 2015-07-31 | 2017-02-09 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Method and system for producing a three-dimensional fiber-reinforced part using a modular tool mold |
| CN107511957A (en) * | 2017-07-21 | 2017-12-26 | 浙江工业大学 | A kind of electronic racing car shell monomer Auto-body manufacturing method and its turn over former |
| CN111113951A (en) * | 2020-01-03 | 2020-05-08 | 中国电子科技集团公司第十四研究所 | Integral forming manufacturing method of lightweight carbon fiber case |
| CN111546666A (en) * | 2020-05-12 | 2020-08-18 | 安徽泰乐玛科技有限公司 | Manufacturing method of large-scale wind driven generator cabin cover |
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