CN105172164B - A kind of frock and manufacture method for manufacturing variable cross-section class drum composite product - Google Patents

A kind of frock and manufacture method for manufacturing variable cross-section class drum composite product Download PDF

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Publication number
CN105172164B
CN105172164B CN201510583547.3A CN201510583547A CN105172164B CN 105172164 B CN105172164 B CN 105172164B CN 201510583547 A CN201510583547 A CN 201510583547A CN 105172164 B CN105172164 B CN 105172164B
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laying
formpiston
composite
carbon fiber
frock
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CN105172164A (en
Inventor
张运湘
蒲永伟
关振
庞城德
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Shenyang Aircraft Industry Group Co Ltd
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Shenyang Aircraft Industry Group Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/40Shaping or impregnating by compression not applied
    • B29C70/42Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/54Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/543Fixing the position or configuration of fibrous reinforcements before or during moulding

Abstract

The present invention relates to a kind of frock and manufacture method for manufacturing variable cross-section class drum composite product.The technical scheme of use is:Frock is made up of upper formpiston, lower formpiston, the even pressing plate of the composite of central dividing plate and both sides.Manufacture method, makes the even pressing plate of composite first;Then the carbon fiber prepreg laying of fixed dimension will be cut on forming frock, the good each several part carbon fiber prepreg of laying is finally transferred to combination and solidification frock from forming frock carries out entire combination, and encapsulated vacuum bag;Complete prepreg blank is sealed at 120 180 DEG C, curing molding 1~3 hour under 0.3 0.8MPa;After cooling, the even pressing plate of composite, central dividing plate, upper formpiston and lower formpiston are removed, obtain variable cross-section class drum composite product.Manufacture craft of the invention, can improve product pressure transmission efficiency in the curing process, reduce product fault of construction and produce, it is ensured that the profile and internal soundness of product.

Description

A kind of frock and manufacture method for manufacturing variable cross-section class drum composite product
Technical field
It is more particularly to a kind of for ensureing the present invention relates to a kind of manufacturing process of composite variable cross-section class drum product The manufacture method of composite variable cross-section class drum product internal and type quality in manufacturing process.
Background technology
Composite variable cross-section class drum product belongs to main force support structure part, be mainly used in rudder of aircraft and wing it In.As depicted in figs. 1 and 2, variable cross-section class drum product (400) typically has following features:Product contour structures are irregular, chi Very little in uneven thickness, type face changes greatly, and shaping structures difficulty is big.
In the prior art, manufacture carbon fibre composite drum product mainly uses vacuum bag-autoclave method.The method It is that prepreg blank laying is formed into c-type structure on rigid formpiston, two c-type blanks then are leaned against into dorsal part puts combination, and In top and bottom laying certain thickness prepreg blank composition drum structure, last encapsulated vacuum bag curing molding.This technique side Method is only applicable to typical ordered structure product.But drum, class drum product for variable cross-section thickness, such as use the above method Then will be unable to smoothly complete the shaping manufacture of such product.This is because the variable cross-section frock that side is placed is passed to product web area Pressure effect is bad, causes the generation of web area defect;And it is unfavorable for knockout course, easily cause product and produce surface and inside to lack Fall into.
The content of the invention
In order to solve problem above, it is an object of the present invention to provide a kind of manufacture craft of composite class drum product, drop Low product web area defect is produced, it is ensured that the profile and internal soundness of product.
The technical solution adopted by the present invention is:A kind of frock for manufacturing variable cross-section class drum composite product, by Upper formpiston, lower formpiston and central dividing plate are constituted.
Described upper formpiston is:Structure is integrally formed by main element I, positioning element I, positioning element II and handle component Upper formpiston main body.
Described lower formpiston is:Positioned by main element II, positioning element III, positioning element IV and the even pressing plate of composite Pin is integrally formed the lower formpiston main body of structure, and lower formpiston main body is arranged on base plate.
Central dividing plate is flexibly connected with positioning element IV.
Positioning element I and positioning element II and the positioning element III of lower formpiston and matching somebody with somebody for positioning element IV by upper formpiston Close, by upper formpiston together with lower punch combination.
A kind of above-mentioned frock for manufacturing variable cross-section class drum composite product, four ends of the base plate of lower formpiston The suspension ring for being easy to frock to shift are provided with angle.
A kind of manufacture method of variable cross-section class drum composite product, using above-mentioned frock, comprises the following steps:
1) the even pressing plate of composite is made;Described even pressing plate is:Laying carbon fiber layer on metallic plate, glues on carbon fiber layer Patch rubber layer;It is made two left and right even pressing plates of composite;
2) the carbon fiber prepreg lay-up molding of shaping will be cut out
A) by carbon fiber prepreg, by the profile of upper formpiston main body, successively laying, to requirement thickness, obtains mould laying;
B) carbon fiber prepreg is pressed into the profile of formpiston main body successively laying, to thickness is required, obtains lower mould laying;
C) by carbon fiber prepreg, by the profile of left and right edge strip main body, successively laying, to requirement thickness, obtains left border bar laying With right border bar laying;
D) by carbon fiber prepreg, by the profile of sandwich, successively laying, to requirement thickness, obtains sandwich laying;
3) entire combination is sequentially:Central dividing plate is placed in the positioning element IV that carbon fiber prepreg lays the lower mould of completion On, then positioned on central dividing plate and place sandwich laying, according on upper formpiston and lower formpiston positioning element position grouping Mould laying and lower mould laying, left border bar laying and right border bar laying according to central dividing plate position bit combination both sides, finally press According to the composite even pressing plate of the even left and right composite of pressing plate alignment pin position location and installation;
4) by the frock of lay-up molding, it is put into vacuum bag, at 120-180 DEG C, curing molding 1~3 under 0.3-0.8MPa Hour;
5) after cooling down, the left and right even pressing plate of composite, upper formpiston, lower formpiston and central dividing plate are removed, obtains variable cross-section class Drum composite product.
Above-mentioned manufacture method, the described even sheeting part of making composite is:Laying carbon fiber is pre- on a metal plate Leaching material, hot compaction is carried out using firing equipment to laying;After the completion of laying, the raw rubber band of same thickness is used around blank Carry out edge sealing;Blank is put into vacuum bag, at 120-180 DEG C, curing molding 1~3 hour under 0.3-0.6MPa, after cooling, Surfacing is carried out to even pressing plate, and the thick vulcanized rubber pieces of 1~5mm are pasted on surface.
Above-mentioned manufacture method, in step 2, when will cut out the carbon fiber prepreg lay-up molding of shaping, ground floor is carried out Pre-compacted, then, often increases 3-5 layers and is compacted once.
The beneficial effects of the invention are as follows:
1. the present invention, changes system into the steel formpiston frock that blank both sides are placed the upper and lower formpiston work being disposed vertically up and down Dress, is easy to prepreg blank to combine and pressure transmission.
2. of the invention, upper and lower vertical cartel formpiston frock resistance to overturning is good, is conducive to substep to remove each frock, improves de- Mold technique.
3. of the invention, the even pressing plate of composite has certain rigidity, it is ensured that the surface quality of product, in even pressing plate The presence of surface vulcanized rubber piece can ensure the harmony with product.
4. of the invention, the design of the even pressing plate of composite makes itself alteration of form does not occur, can be with the irregular table of product Face is brought into close contact, it is ensured that product type quality.
5. of the invention, the method solidified using vertically punch combination makes the drum of variable cross-section thickness, class drum product It is easy to prepreg blank to combine and pressure transmission in preparation process, it is to avoid because pressure transmission inequality causes inside parts defect; Meanwhile, the assembled tool being disposed vertically reduces tooling combination and demoulding difficulty, it is to avoid because frock dislocation cause parts scrap and Surface and internal injury that demoulding difficulty is caused.
6. the present invention, is applied in 10 multinomial like parts productions, achieves positive effect, improves product entirety Quality and production efficiency reduce production cost.Due to reducing demoulding difficulty, it is to avoid because of the violence demoulding cause frock to become Shape is scrapped, its service life and than before more than 5 times of raising.
Brief description of the drawings
Fig. 1 is the top view of variable cross-section class drum composite product.
Fig. 2 is the side view of variable cross-section class drum composite product.
Fig. 3 is the Shangyang mode structure schematic diagram for manufacturing the frock of variable cross-section class drum composite product.
Fig. 4 is to hold formpiston structural representation for manufacturing the work of variable cross-section class drum composite product.
Fig. 5 is the frock overall schematic after the variable cross-section class upper and lower punch combination of drum composite product.
Specific embodiment
A kind of frock for manufacturing variable cross-section class drum composite product of embodiment 1
A kind of frock for manufacturing variable cross-section class drum composite product:By upper formpiston (100), lower formpiston (200) Constituted with dividing plate (300).
As shown in figure 3, upper formpiston (100) is by main element I (101), positioning element I (102), positioning element II And handle component (104) is integrally formed the upper formpiston main body of structure (103).
As shown in figure 4, lower formpiston (200) is by main element II (201), positioning element III (202), positioning element IV (203) and the even pressing plate alignment pin (204) of composite is integrally formed the lower formpiston main body of structure, lower formpiston main body is arranged on base plate (206) on, (200) four ends of lower formpiston are provided with the suspension ring (205) for being easy to frock to shift at angle.
Central dividing plate (300) is flexibly connected with positioning element IV (203).
By the positioning element III (202) of the positioning element I (102) and positioning element II (103) of upper formpiston and lower formpiston With the cooperation of positioning element IV (203), upper formpiston (100) and lower formpiston (200) are combined.
A kind of manufacture method of variable cross-section class drum composite product of embodiment 2
Prepare variable cross-section class drum composite product as depicted in figs. 1 and 2, be certain type rudder in class drum Ribs, using the frock of embodiment 1, step is as follows:
1) the even pressing plate of composite is made
Described even pressing plate is:Laying carbon fiber layer on metallic plate, pastes rubber layer on carbon fiber layer.
Making the even sheeting part of composite is:Laying carbon fiber prepreg on a metal plate, using firing equipment to paving Layer carries out hot compaction;After the completion of laying, the raw rubber band using same thickness around blank carries out edge sealing, in preventing prepreg Resin is excessively lost in;Blank is put into vacuum bag, autoclave, at 120-180 DEG C, curing molding 1 under 0.3-0.6MPa is sent into ~3 hours, after cooling, surfacing is carried out to even pressing plate, and the thick vulcanized rubber pieces of 1~5mm are pasted on surface.
The even pressing plate of left and right composite is made respectively.
2) the carbon fiber prepreg lay-up molding of shaping will be cut out
2.1) by carbon fiber prepreg, by the profile of upper formpiston main body, successively laying, to requirement thickness, obtains mould laying;Paving When folded, ground floor carries out pre-compacted, then, often increases 3-5 layers and is compacted once.
2.2) carbon fiber prepreg is pressed into the profile of formpiston main body successively laying, to thickness is required, obtains lower mould laying;Paving When folded, ground floor carries out pre-compacted, then, often increases 3-5 layers and is compacted once.
2.3) by carbon fiber prepreg, by the profile of left and right edge strip main body, successively laying, to requirement thickness, obtains left border bar laying With right border bar laying;During laying, ground floor carries out pre-compacted, then, often increases 3-5 layers and is compacted once.
2.4) by carbon fiber prepreg, by the profile of sandwich, successively laying, to requirement thickness, obtains sandwich laying; During laying, ground floor carries out pre-compacted, then, often increases 3-5 layers and is compacted once.
3) entire combination is sequentially:Central dividing plate (300) is placed in the location division that carbon fiber prepreg lays the lower mould of completion On part IV (203), then positioned on central dividing plate (300) and place sandwich laying, according to upper formpiston (100) and lower formpiston (200) mould laying and lower mould laying on positioning element position grouping, according to the left border bar of central dividing plate position bit combination both sides Laying and right border bar laying, it is finally even according to even pressing plate alignment pin (204) the position left and right composite of location and installation of composite Pressing plate.
4) by the frock of lay-up molding, it is put into vacuum bag, at 120-180 DEG C, curing molding 1~3 under 0.3-0.8MPa Hour;
5) after cooling down, left and right even pressing plate, upper formpiston, lower formpiston and central dividing plate are removed, obtains variable cross-section class drum and be combined Material.

Claims (3)

1. a kind of manufacture method of variable cross-section class drum composite product, it is characterised in that:Using for manufacturing variable cross-section class The frock of drum composite product, comprises the following steps:
1) the even pressing plate of composite is made;Described even pressing plate is:Laying carbon fiber layer on metallic plate, pastes rubber on carbon fiber layer Glue-line;It is made two left and right even pressing plates of composite;
2) the carbon fiber prepreg lay-up molding of shaping will be cut out
A) by carbon fiber prepreg, by the profile of upper formpiston main body, successively laying, to requirement thickness, obtains mould laying;
B) carbon fiber prepreg is pressed into the profile of formpiston main body successively laying, to thickness is required, obtains lower mould laying;
C) by carbon fiber prepreg, by the profile of left and right edge strip main body, successively laying, to requirement thickness, obtains left border bar laying and the right side Edge strip laying;
D) by carbon fiber prepreg, by the profile of sandwich, successively laying, to requirement thickness, obtains sandwich laying;
3) entire combination is sequentially:Central dividing plate (300) is placed in the positioning element IV that carbon fiber prepreg lays the lower mould of completion (203) on, then positioned on central dividing plate (300) and place sandwich laying, according to upper formpiston (100) and lower formpiston (200) mould laying and lower mould laying on positioning element position grouping, according to the left border bar of central dividing plate position bit combination both sides Laying and right border bar laying, it is finally even according to even pressing plate alignment pin (204) the position left and right composite of location and installation of composite Pressing plate;
4) by the frock of lay-up molding, it is put into vacuum bag, at 120-180 DEG C, curing molding 1~3 hour under 0.3-0.8MPa;
5) after cooling down, the left and right even pressing plate of composite, upper formpiston (100), lower formpiston (200) and central dividing plate (300) are removed, Obtain variable cross-section class drum composite product;
The described frock for manufacturing variable cross-section class drum composite product:By upper formpiston (100), lower formpiston (200) and Central dividing plate (300) is constituted;
Described upper formpiston (100) is:By main element I (101), positioning element I (102), positioning element II (103) and handle Part (104) is integrally formed the upper formpiston main body of structure;
Described lower formpiston (200) is:By main element II (201), positioning element III (202), positioning element IV (203) and multiple The even pressing plate alignment pin (204) of condensation material is integrally formed the lower formpiston main body of structure, and lower formpiston main body is arranged on base plate (206), (206) four ends of lower plunger retainer are provided with the suspension ring (205) for being easy to frock to shift at angle;
Central dividing plate (300) is flexibly connected with positioning element IV (203);By the positioning element I (102) of upper formpiston and location division Part II (103) coordinates with the positioning element III (202) and positioning element IV (203) of lower formpiston, by upper formpiston (100) and lower formpiston (200) combine.
2. manufacture method according to claim 1, it is characterised in that:The described even sheeting part of making composite is: Laying carbon fiber prepreg, hot compaction is carried out using firing equipment to laying on a metal plate;After the completion of laying, around blank Edge sealing is carried out using the raw rubber band of same thickness;Blank is put into vacuum bag, it is solid under 0.3-0.6MPa at 120-180 DEG C Chemical conversion type 1~3 hour;After cooling, surfacing is carried out to even pressing plate, and the thick vulcanized rubber pieces of 1~5mm are pasted on surface.
3. manufacture method according to claim 1, it is characterised in that:In step 2, the carbon fiber prepreg of shaping will be cut out During lay-up molding, ground floor carries out pre-compacted, then, often increases by 3~5 layers and is compacted once.
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