CN109624355A - High-performance VARI technological forming composite material goes out plastic structure and method - Google Patents

High-performance VARI technological forming composite material goes out plastic structure and method Download PDF

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Publication number
CN109624355A
CN109624355A CN201811504396.8A CN201811504396A CN109624355A CN 109624355 A CN109624355 A CN 109624355A CN 201811504396 A CN201811504396 A CN 201811504396A CN 109624355 A CN109624355 A CN 109624355A
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CN
China
Prior art keywords
ontology
formpiston
type
precast body
composite material
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Pending
Application number
CN201811504396.8A
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Chinese (zh)
Inventor
张琳
党杰
刘磐
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Xian Aeronautical Polytechnic Institute
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Xian Aeronautical Polytechnic Institute
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Priority to CN201811504396.8A priority Critical patent/CN109624355A/en
Publication of CN109624355A publication Critical patent/CN109624355A/en
Pending legal-status Critical Current

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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
    • B29C70/30Shaping 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
    • B29C70/36Shaping 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 impregnating by casting, e.g. vacuum casting

Abstract

Go out plastic structure, including covering and matched molds molding structure the invention discloses high-performance VARI technological forming composite material, matched molds molding structure is arranged on covering.Matched molds molding structure includes former and formpiston;Formpiston includes formpiston ontology, and the cross section of formpiston ontology is rectangle, and the longitudinal section of formpiston ontology is right-angled trapezium;Former includes Z-type ontology, and one end of former is the small end Z, and the other end is the big end Z;In use, formpiston is fixed with covering, former is mounted on formpiston.The present invention replaces traditional one-side mould using yin-yang mode structure, and mouth is led in setting on former, for exporting gas, improves the mobility of resin along its length, guarantee resin can complete wetting precast body, finally obtain high performance composite products.

Description

High-performance VARI technological forming composite material goes out plastic structure and method
Technical field
The invention belongs to technical field of composite material molding, and in particular to high-performance VARI (vacuum assisted resin infiltration or Perfusion) technological forming composite material go out plastic structure, the invention further relates to using it is above-mentioned go out plastic structure carry out composite molding Method.
Background technique
With the continuous development of manufacture technology of composite material, composite material dosage is in aerospace, the application of civil field Also more and more.The application of Liquid molding techniques is also more and more, and VARI is as most promising in Liquid molding techniques One of technology, obtain more and more applications in military and civilian's machine and automotive field.
Currently, aviation composite J-type Material Stiffened Panel also gradually adopts VARI technological forming, but hold when use one-side mould Resin infiltration easily occurs to be not thorough, is also easy to produce buildup of resin and fiber accumulations in Zone R, final products surface generates dry spot, starved Defect, inside is that gap is intensive when non-destructive testing.
Summary of the invention
Go out plastic structure the object of the present invention is to provide a kind of high-performance VARI technological forming composite material.
It is a further object of the present invention to provide a kind of methods of high-performance VARI technological forming composite material.
The first technical solution of the present invention is that high-performance VARI technological forming composite material goes out plastic structure, Including covering and matched molds molding structure, matched molds molding structure is arranged on covering.
The characteristics of the first technical solution of the present invention, also resides in:
Matched molds molding structure includes former and formpiston, in use, formpiston is fixed on covering, former is mounted on formpiston On.
Formpiston includes formpiston ontology, and the cross section of formpiston ontology is rectangle, and the longitudinal section of formpiston ontology is right-angled trapezium.
The both ends of formpiston ontology are respectively equipped with first positioning hole, are respectively equipped with locating piece A on the both ends end face of formpiston ontology, Second location hole is offered respectively on each locating piece A.
Former includes Z-type ontology, and the height of Z-type ontology one end is lower than the height of the other end, i.e. the higher-end of Z-type ontology is The big end Z, lower end are the small end Z, and Z-type ontology is equipped with Z-type accommodating cavity, and the top of Z-type ontology, which is disposed with, leads mouth, leads mouth and Z-type Accommodating cavity connection, can be from leading a mouthful air guide, injecting glue and plastic emitting.
It leads mouth and is at least two rows, mouthful quantity of leading of every row is at least three.Lead mouth be circular hole, lead mouth diameter be 1mm~ 2mm。
Locating piece B is respectively equipped on the both upper ends thereof face of Z-type ontology, each locating piece B is equipped with third location hole, third Location hole is corresponding up and down with first positioning hole position.
Second of technical solution of the present invention is the method for high-performance VARI technological forming composite material,
Specifically comprise the following steps:
It step 1, will be in the carbon fibre fabric paving to covering of the agent containing difinite quality;
Step 2, the upper end bottom surface of c-type precast body is pressed in the upper of formpiston ontology by the paving c-type precast body on formpiston ontology The lower end bottom surface of c-type precast body is pressed in the lower surface of formpiston ontology, after the completion of c-type precast body paving, by having heated by surface At prefabricated body-shaping;
Step 3, the upper end bottom surface of Z-type precast body, is pressed in the Z of former ontology by the paving Z-type precast body on former ontology The lower end bottom surface of Z-type precast body, is pressed in the lower surface of the Z-type accommodating cavity of former ontology by the upper surface of type accommodating cavity, and Z-type is prefabricated After the completion of body paving, the prefabricated body-shaping of Z-type is completed by heating;
Step 4, formpiston ontology is pressed on carbon fibre fabric together with c-type precast body, is each passed through formpiston ontology with bolt The second location hole on locating piece on the end face of both ends, formpiston and covering are fixed together;Z-type ontology is prefabricated together with Z-type Body is pressed on the formpiston ontology for being covered with c-type precast body, make third location hole on the locating piece in Z-type body upper part both ends of the surface with The first positioning hole at formpiston ontology both ends is corresponding up and down, and then former and formpiston are fixed together with bolt;
Step 5, in Z-type body surface laying auxiliary material, overall package vacuum bag, at the upper surface both ends of Z-type ontology Gum-injecting port and gum outlet is respectively set;
Step 6, plastic structure out and precast body are warming up to injecting glue temperature, are then carried out by the gum-injecting port that step 5 is arranged Injecting glue, injecting glue are solidified after the completion, demould after the completion of solidification, composite products can be obtained.
The invention has the advantages that the present invention replaces traditional one-side mould using yin-yang mode structure, while being set on former In respect of mouth is led, for exporting gas, the mobility of resin along its length is improved, the wetting capacity of resin is increased, guarantees resin Can complete wetting precast body, finally obtain high performance composite products.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for going out plastic structure of high-performance VARI technological forming composite material of the present invention;
Fig. 2 is the structural schematic diagram for going out plastic structure middle-jiao yang, function of the spleen and stomach mould of high-performance VARI technological forming composite material of the present invention;
Fig. 3 is the structural schematic diagram for going out former in plastic structure of high-performance VARI technological forming composite material of the present invention;
Fig. 4 is one of the finished product structure schematic diagram of high-performance VARI technological forming composite material of the present invention;
Fig. 5 is the two of the finished product structure schematic diagram of high-performance VARI technological forming composite material of the present invention;
Fig. 6 is knot of the present invention using a kind of resulting J-type rib of method of high-performance VARI technological forming composite material Structure disassembly diagram.
In figure, 1. coverings;
2. formpiston, 2-1. formpiston ontology, 2-2. locating piece A, 2-3. first positioning hole, 2-4. second location hole;
3. former, 3-1.Z type ontology, 3-2. lead mouth, 3-3. locating piece B, 3-4. third location hole;
4. carbon fibre fabric, 5.J type rib precast body, 6.J type rib, 7.C type precast body, 8.Z type precast body.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of high-performance VARI technological forming composite material of the present invention goes out plastic structure, as shown in Figure 1, including 1 He of covering Matched molds molding structure, matched molds molding structure are arranged on covering 1.
Matched molds molding structure includes former 3 and formpiston 2.In use, formpiston 2 is fixed on covering 1, former 3 is mounted on On formpiston 2.
As shown in Fig. 2, formpiston 2 includes formpiston ontology 2-1, the cross section of formpiston ontology 2-1 is rectangle, formpiston ontology 2-1 Longitudinal section be right-angled trapezium.
The both ends of formpiston ontology 2-1 are respectively equipped with first positioning hole 2-3, set respectively on the both ends end face of formpiston ontology 2-1 There is locating piece A2-2, offers second location hole 2-4 respectively on each locating piece A2-2.
As shown in figure 3, former 3 includes Z-type ontology 3-1, the height of the one end Z-type ontology 3-1 is lower than the height of the other end, i.e., The higher-end of Z-type ontology 3-1 is the big end Z, and lower end is the small end Z.
Z-type ontology 3-1 is equipped with Z-type accommodating cavity, and the top of Z-type ontology 3-1, which is disposed with, leads a mouthful 3-2, leads mouthful 3-2 and Z-type Accommodating cavity connection, can be from leading mouthful 3-2 air guide, injecting glue and a plastic emitting.Furthermore it is possible to which injecting glue individually is arranged on Z-type ontology 3-1 Mouth and gum outlet, gum-injecting port are preferably provided on the big end the Z end face of Z-type ontology 3-1, and gum outlet is preferably provided at Z-type ontology 3-1 The small end Z end face on.
It leads mouthful 3-2 and is at least two rows, mouthful 3-2 quantity of leading of every row is at least three.Leading mouthful 3-2 is circular hole, leads mouthful 3-2's Diameter is 1mm~2mm.
Locating piece B3-3 is respectively equipped on the both upper ends thereof face of Z-type ontology 3-1, each locating piece B3-3 is fixed equipped with third The position position hole 3-4, third location hole 3-4 and first positioning hole 2-3 is corresponding up and down.
The present invention also provides using the above-mentioned method that plastic structure carries out composite molding out, following step is specifically included It is rapid:
It step 1, will be in 4 paving to covering 1 of the carbon fibre fabric of the agent containing difinite quality;
Step 2, the upper end bottom surface of c-type precast body 7 is pressed in formpiston sheet by the paving c-type precast body 7 on formpiston ontology 2-1 The lower end bottom surface of c-type precast body 7, is pressed in the lower surface of formpiston ontology 2-1 by the upper surface of body 2-1, and 7 paving of c-type precast body is complete Cheng Hou completes c-type precast body 7 by heating and is formed;
Step 3, the upper end bottom surface of Z-type precast body 8 is pressed in former sheet by the paving Z-type precast body 8 on former ontology 3-1 The lower end bottom surface of Z-type precast body 8 is pressed under the Z-type accommodating cavity of former ontology 3-1 by the upper surface of the Z-type accommodating cavity of body 3-1 Surface after the completion of 8 paving of Z-type precast body, completes Z-type precast body 8 by heating and is formed;
Step 4, formpiston ontology 2-1 is pressed on carbon fibre fabric 4 together with c-type precast body 7, is each passed through formpiston with bolt The second location hole 2-4 on locating piece A2-2 on the end face of the both ends ontology 2-1, formpiston 2 and covering 1 are fixed together;By Z-type Ontology 3-1 together with Z-type precast body 8 (in advance between Z-type ontology 3-1 and Z-type precast body 8 the good auxiliary material isolation film of laying and Flow-guiding cloth) it is pressed on the formpiston ontology 2-1 for being covered with c-type precast body 7, make the locating piece B3-3 on Z-type ontology 3-1 both upper ends thereof face On third location hole 3-4 it is corresponding with the first positioning hole 2-3 or more at the both ends formpiston ontology 2-1, then with bolt by former 3 with Formpiston 2 is fixed together;
Step 5, in the surface Z-type ontology 3-1 laying auxiliary material diversion pipe, vacuum tube etc., overall package vacuum bag, later Gum-injecting port and gum outlet is respectively set at the upper surface both ends of Z-type ontology 3-1, connects resin trap and vacuum pump inspection is airtight Property;
Step 6, by plastic structure out and precast body, (precast body is the J-type muscle combined by c-type precast body 7 and Z-type precast body 8 Precast body 5 and carbon fibre fabric 4) it is warming up to injecting glue temperature, injecting glue, injecting glue are then carried out by the gum-injecting port that step 5 is arranged Solidified after the completion, demoulded after the completion of solidification, composite product can be obtained, product is J-type rib 6 and carbon fibre fabric 4 combination, product structure is as shown in Figure 4,5, and the structure disassembly diagram of J-shaped rib 6 is as shown in Figure 6.

Claims (9)

1. high-performance VARI technological forming composite material goes out plastic structure, it is characterised in that: including covering (1) and yin-yang mold forming Structure, matched molds molding structure are arranged on covering (1).
2. high-performance VARI technological forming composite material according to claim 1 goes out plastic structure, it is characterised in that: described Matched molds molding structure includes former (3) and formpiston (2), in use, formpiston (2) is fixed on covering (1), former (3) installation On formpiston (2).
3. high-performance VARI technological forming composite material according to claim 2 goes out plastic structure, it is characterised in that: described Formpiston (2) includes formpiston ontology (2-1), and the cross section of formpiston ontology (2-1) is rectangle, and the longitudinal section of formpiston ontology (2-1) is Right-angled trapezium.
4. high-performance VARI technological forming composite material according to claim 3 goes out plastic structure, it is characterised in that: described The both ends of formpiston ontology (2-1) are respectively equipped with first positioning hole (2-3), are respectively equipped on the both ends end face of formpiston ontology (2-1) Locating piece A (2-2) offers second location hole (2-4) on each locating piece A (2-2) respectively.
5. the high-performance VARI technological forming composite material stated according to claim 4 goes out plastic structure, it is characterised in that: the yin Mould (3) includes Z-type ontology (3-1), the height of the one end Z-type ontology (3-1) is lower than the height of the other end, i.e. Z-type ontology (3-1) Higher-end is the big end Z, and lower end is the small end Z, and Z-type ontology (3-1) is equipped with Z-type accommodating cavity, the top cloth of Z-type ontology (3-1) It is equipped with and leads mouth (3-2), lead mouth (3-2) and be connected to Z-type accommodating cavity, it can be from leading mouth (3-2) air guide, injecting glue and plastic emitting.
6. high-performance VARI technological forming composite material according to claim 5 goes out plastic structure, it is characterised in that: described It leads mouth (3-2) and is at least two rows, mouth (3-2) quantity of leading of every row is at least three.
7. high-performance VARI technological forming composite material according to claim 5 goes out plastic structure, it is characterised in that: described Leading mouth (3-2) is circular hole, and the diameter for leading mouth (3-2) is 1mm~2mm.
8. high-performance VARI technological forming composite material according to claim 5 goes out plastic structure, the Z-type ontology (3- 1) it being respectively equipped on both upper ends thereof face locating piece B (3-3), each locating piece B (3-3) is equipped with third location hole (3-4), the Three location holes (3-4) are corresponding up and down with the position first positioning hole (2-3).
9. a kind of method of high-performance VARI technological forming composite material, it is characterised in that: specifically comprise the following steps:
It step 1, will be in carbon fibre fabric (4) paving to covering (1) of the agent containing difinite quality;
Step 2, the upper end bottom surface of c-type precast body (7) is pressed in formpiston by the paving c-type precast body (7) on formpiston ontology (2-1) The lower end bottom surface of c-type precast body (7) is pressed in the lower surface of formpiston ontology (2-1), c-type precast body by the upper surface of ontology (2-1) (7) after the completion of paving, c-type precast body (7) sizing is completed by heating;
Step 3, the upper end bottom surface of Z-type precast body (8) is pressed in former by the paving Z-type precast body (8) on former ontology (3-1) The upper surface of the Z-type accommodating cavity of ontology (3-1) holds the Z-type that the lower end bottom surface of Z-type precast body (8) is pressed in former ontology (3-1) The lower surface of chamber is set, after the completion of Z-type precast body (8) paving, Z-type precast body (8) sizing is completed by heating;
Step 4, formpiston ontology (2-1) is pressed on carbon fibre fabric (4) together with c-type precast body (7), is each passed through sun with bolt The second location hole (2-4) on locating piece A (2-2) on the both ends end face mould body (2-1), formpiston (2) and covering (1) are fixed Together;Z-type ontology (3-1) is pressed on the formpiston ontology (2-1) for being covered with c-type precast body (7) together with Z-type precast body (8), is made Third location hole (3-4) on locating piece B (3-3) and the both ends formpiston ontology (2-1) on Z-type ontology (3-1) both upper ends thereof face First positioning hole (2-3) correspond to up and down, then former (3) and formpiston (2) are fixed together with bolt;
Step 5, in the surface Z-type ontology (3-1) laying auxiliary material, overall package vacuum bag, later in Z-type ontology (3-1) Gum-injecting port and gum outlet is respectively set in upper surface both ends;
Step 6, plastic structure out and precast body are warming up to injecting glue temperature, injecting glue are then carried out by the gum-injecting port that step 5 is arranged, Solidified after the completion of injecting glue, demoulded after the completion of solidification, composite product can be obtained, product is J-type rib (6) and carbon fiber Tie up the combination of fabric (4).
CN201811504396.8A 2018-12-10 2018-12-10 High-performance VARI technological forming composite material goes out plastic structure and method Pending CN109624355A (en)

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Cited By (3)

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CN110654565A (en) * 2019-09-26 2020-01-07 东方航空技术有限公司 Method and system for quickly repairing aircraft exterior complex curved surface skin
CN111605228A (en) * 2020-04-20 2020-09-01 航天材料及工艺研究所 Light flexible prefabricated body reinforced composite material dimensional forming die and forming method
CN113459540A (en) * 2021-06-25 2021-10-01 成都飞机工业(集团)有限责任公司 Forming device and forming method for slender part with closed angle

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US20090200423A1 (en) * 2006-07-13 2009-08-13 Airbus Uk Limited Wing cover panel assembly and wing cover panel for an aircraft wing and a method of forming thereof
CN102848498A (en) * 2012-06-04 2013-01-02 中航复合材料有限责任公司 Mold for integrally molding J-shaped reinforced composite material wall plate
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CN111605228A (en) * 2020-04-20 2020-09-01 航天材料及工艺研究所 Light flexible prefabricated body reinforced composite material dimensional forming die and forming method
CN113459540A (en) * 2021-06-25 2021-10-01 成都飞机工业(集团)有限责任公司 Forming device and forming method for slender part with closed angle
CN113459540B (en) * 2021-06-25 2022-05-10 成都飞机工业(集团)有限责任公司 Forming device and forming method for slender part with closed angle

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