CN106342037B - A kind of method that adopts semi-solid preparation Z-pin to manufacture K-cor sandwich - Google Patents
A kind of method that adopts semi-solid preparation Z-pin to manufacture K-cor sandwichInfo
- Publication number
- CN106342037B CN106342037B CN200610120140.8A CN200610120140A CN106342037B CN 106342037 B CN106342037 B CN 106342037B CN 200610120140 A CN200610120140 A CN 200610120140A CN 106342037 B CN106342037 B CN 106342037B
- Authority
- CN
- China
- Prior art keywords
- pin
- fiber fabric
- soaking fiber
- solid preparation
- semi
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000007787 solid Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 40
- 239000006260 foam Substances 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011162 core material Substances 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims description 44
- 238000002791 soaking Methods 0.000 claims description 39
- 239000010410 layer Substances 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000007731 hot pressing Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 230000009477 glass transition Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 239000012943 hotmelt Substances 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 235000004418 Durio kutejensis Nutrition 0.000 description 1
- 240000002669 Durio kutejensis Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Abstract
Adopt semi-solid preparation Z-pin to manufacture a method for K-cor sandwich, belong to composite material sandwich structure forming method. The crucial part of the method is: in the each lay preimpregnation of foam core material upper and lower surface tissue layer, by semi-solid preparation is that Z-pin inserts foam, certain length is respectively stretched out at two ends; The softening bending of Z-pin that heating, pressurization make to stretch out preimpregnation fabric is combined with preimpregnation fabric and is formed reinforced foam core, prepares panel, obtains K-cor sandwich after curing by common processes. Stretching out foam segment and panel resin co-curing by Z-pin increases the adhesion at interface, has improved the performance such as bending resistance, shearing resistance of K-cor sandwich.
Description
One technical field
The present invention relates to a kind of method that adopts semi-solid preparation Z-pin to manufacture K-cor sandwich, belong to composite material interlayer knotStructure forming method.
Two background technologies
X-cor is a kind of unicellular foamed plastic cores of enhancing, in foamed plastics, implants and outer surface unidirectional fibre at an angleDimension spicule (being Z-pin) is to form grid structure. Press solidly through adding at the Foam Plastic Surface lay prepreg that has grid structureChange can obtain X-cor sandwich structure composite material. Due to the geometrical property of grid structure can increase substantially anti-shear performance andCompressive property, the general honeycomb of its compressive strength rate exceeds 200%, and can reduce water absorption rate, weight reduction. This structure canDesign is strong, can select neatly as required the kind of different Z-pin material, geometric angle, distribution density and foam core.The U.S. has adopted the X-cor of AZTEX company exploitationTMMaterial substitution part honeycomb, manufactures sandwich structure composite material for novelAircaft configuration.
Combination in X-cor structure between core foam and surperficial covering mainly relies on the end of Z-pin and the cast setting of coveringRealize. Because this inlaying is a combination, adhesion is limited, and in the time of bearing load, X-cor structure is first at Z-pinThe interface of end and covering is destroyed, thereby causes X-cor structural failure.
Three summary of the invention
The object of this invention is to provide a kind of semi-solid preparation Z-pin that adopts and manufacture K-cor interlayer knot method, solve X-cor structureThe problem that combination between middle Z-pin and surperficial covering is weak, the mechanical property such as bending resistance, shearing resistance of raising K-cor sandwich.
Adopt semi-solid preparation Z-pin to manufacture a method for K-cor sandwich, it is characterized in that:
(1) in the each lay pre-soaking fiber of foam core material upper and lower surface tissue layer;
(2) jack device is positioned on pre-soaking fiber fabric, with jack pin jack on foam core material, aperture is not more than Z-pinDiameter, the pre-soaking fiber fabric of foam and surperficial levels thereof is run through in hole;
(3) adopt the Z-pin of semi-solid preparation to insert foam, this semi-solid preparation Z-pin adopts solution dipping method preparation or adopts hot meltPreparation, the technical process that adopts described solution dipping method to prepare semi-solid preparation Z-pin is: silvalin bundle is passed through to resin glue drill traverseGlue is also vertically extended, the circularity by solution surface tension with the acting in conjunction common guarantee Z-pin of the power of extending, and continuous drying removesGo the intrafascicular volatile solvent of pre-soaking fiber yarn to make resin precuring, cutting obtains Z-pin simultaneously, and by Z-pin one end sharpening;The technical process that adopts described hot melt to prepare semi-solid preparation Z-pin is: silvalin bundle is also vertical by the resin impregnation of meltingExtend, continuous drying makes resin precuring, and cutting obtains Z-pin, and by Z-pin one end sharpening; The length of Z-pin is at least wantedMaking Z-pin stretch out upper and lower pre-soaking fiber fabric portions can paste at pre-soaking fiber fabric face under the softening condition of Z-pin in bending;The state of cure of Z-pin will meet following principle: 1. make Z-pin at room temperature be hard solid shape; 2. the vitrifying of Z-pin turnsTemperature is meeting under the prerequisite of above-mentioned the first principle, better lower;
(4) one end of Z-pin sharpening is implanted along the pre-jack of the pre-soaking fiber fabric of foam and upper and lower surface layer thereof, make Z-pinStretch out upper and lower pre-soaking fiber fabric;
(5) adopt temperature to blow Z-pin higher than the thermal current of Z-pin glass transition temperature and stretch out pre-soaking fiber fabric portions, makeIt is softening, rolls Z-pin extension is pasted at pre-soaking fiber fabric face with hot-pressing roller, and the temperature of thermal current is selected principleFor: can within 5 seconds, make the softening minimum temperature of semi-solid preparation Z-pin;
(6) lay covering prepreg on upper and lower pre-soaking fiber fabric face, wherein manufactures resin and covering resin that Z-pin usesBe QY8911 resin;
(7) carry out cure under pressure by the curing cycle of covering resin.
Advantage of the present invention: by pre-jack on foam, Z-pin one end sharpening and by Z-pin semi-solid preparation to being hard solidBody shape, has facilitated Z-pin to implant foam; By overlaying pre-soaking fiber fabric on upper and lower two surfaces of foam, make Z-pin stretch out bubbleFoam part easily pastes in fabric surface, has facilitated the lay of covering, and Z-pin pastes in pre-soaking fiber fabric face partWith covering resin and pre-soaking fiber fabric co-curing, improve the adhesion of Z-pin and covering, thereby raising sandwichThe mechanical property such as bending resistance, shearing resistance.
Four brief description of the drawings
Fig. 1 is pre-jack process schematic diagram.
Fig. 2 is pre-jack foam (with upper and lower two-layer pre-soaking fiber fabric) front view.
Fig. 3 is pre-jack foam (with upper and lower two-layer pre-soaking fiber fabric) top view.
Fig. 4 is the Z-pin schematic diagram of semi-solid preparation one end sharpening.
Fig. 5 is the foam schematic diagram with upper and lower two-layer pre-soaking fiber fabric of implanting Z-pin.
Fig. 6 fits perfectly at pre-soaking fiber fabric face technical process schematic diagram Z-pin extension.
Fig. 7 is that Z-pin extension fits perfectly and looks schematic diagram pre-soaking fiber fabric face master.
Fig. 8 is that Z-pin extension fits perfectly in pre-soaking fiber fabric face schematic top plan view.
Fig. 9 is K-cor finished product structure schematic diagram.
Label title in Fig. 1: 1. jack pin, 2. jack device framework, 3. jack pin guide pipe, 4. pre-soaking fiber fabric, 5. bubbleFoam.
Label title in Fig. 6: 6. thermal current, 7. hot-pressing roller.
Label title in Fig. 9: 8. covering, 9.Z-pin, label 4 is consistent with Fig. 1 with 5.
Five detailed description of the invention
Further illustrate the present invention below in conjunction with accompanying drawing by example.
Embodiment 1
As shown in Figure 1, by two preimpregnation carbon fibre fabric 4 laies that are soaked with in advance QY8911 resin in a PMI that 20mm is thickUpper and lower two surfaces of foam 5. Jack device 2 is placed on the preimpregnation carbon fibre fabric 4 on upper strata to jack device guide pipe 3 and vertical planeBe 30 degree angles. With jack pin 1 via guide pipe 3 jack that leads, jack pin 1 diameter 1mm, due to foam 5 jack itAfter have resilience, actual foam aperture is less than 1mm, upper and lower preimpregnation carbon fibre fabric and foam are run through in hole. The foam of having inserted hole asShown in Fig. 2, Fig. 3.
Acetone soln dipping by carbon fiber yarn by QY8911 is also vertically extended, common by the power of extending and solution surface tensionEffect ensures the circularity of pre-soaking fiber yarn. Pre-soaking fiber yarn is incubated to half an hour at 50 DEG C, removes acetone, insulation at 140 DEG C15 minutes, make its precuring, be cut into the Z-pin that length is 33mm, by Z-pin one end sharpening, obtain as shown in Figure 4
Z-pin。
Foam (comprising upper and lower two-layer preimpregnation carbon fibre fabric), Z-pin are inserted to along the hole being plugged in advance in one end of Z-pin sharpeningStretch out upper and lower pre-soaking fiber fabric length identical, each about 5mm, as shown in Figure 5.
As shown in Figure 6, adopt the hot-air of 140 DEG C to blow Z-pin and stretch out pre-soaking fiber fabric portions, make it softening, use hot pressingRoller 7 overlays Z-pin extension to overlay on pre-soaking fiber fabric, under hot pressing function, and Z-pin and pre-soaking fiber fabric knotBe combined, as shown in Figure 7, Figure 8.
At upper and lower pre-soaking fiber fabric face lay covering 8, this covering adopts carbon fiber/QY8911 prepreg tape lay to form. PressThe curing cycle of QY8911 resin solidifies: at 120 DEG C, be incubated 1 hour, pressurization 0.4MPa; At 185 DEG C, be incubated 2 hours, pressure0.4MPa; 195 DEG C are incubated 3 hours. Obtain K-cor sandwich as shown in Figure 9.
Embodiment 2
The method that repeats embodiment 1, changes Z-pin precuring system at 140 DEG C and is incubated 30 minutes.
Embodiment 3
The method that repeats embodiment 1, changes Z-pin precuring system at 140 DEG C and is incubated 50 minutes.
Claims (1)
1. adopt semi-solid preparation Z-pin to manufacture a method for K-cor sandwich, it is characterized in that:
(1) in the each lay pre-soaking fiber of foam core material upper and lower surface tissue layer;
(2) jack device is positioned on pre-soaking fiber fabric, with jack pin jack on foam core material, aperture is not more than Z-pinDiameter, the pre-soaking fiber fabric of foam and surperficial levels thereof is run through in hole;
(3) adopt the Z-pin of semi-solid preparation to insert foam, this semi-solid preparation Z-pin adopts solution dipping method preparation or adopts hot meltLegal system is standby, and the technical process that adopts described solution dipping method to prepare semi-solid preparation Z-pin is: silvalin bundle is passed through to resin glue grooveImpregnation is also vertically extended, the circularity by solution surface tension with the acting in conjunction common guarantee Z-pin of the power of extending, continuous dryingRemove the intrafascicular volatile solvent of pre-soaking fiber yarn and make resin precuring simultaneously, cutting obtains Z-pin, and by Z-pin one end sharpening;The technical process that adopts described hot melt to prepare semi-solid preparation Z-pin is: silvalin bundle is also vertical by the resin impregnation of meltingExtend, continuous drying makes resin precuring, and cutting obtains Z-pin, and by Z-pin one end sharpening; The length of Z-pin is at least wantedMaking Z-pin stretch out upper and lower pre-soaking fiber fabric portions can paste at pre-soaking fiber fabric table under the softening condition of Z-pin in bendingFace; The state of cure of Z-pin will meet following principle: 1. make Z-pin at room temperature be hard solid shape; 2. the glass of Z-pinChange transition temperature meeting under the prerequisite of above-mentioned the first principle, better lower;
(4) one end of Z-pin sharpening is implanted along the pre-jack of the pre-soaking fiber fabric of foam and upper and lower surface layer thereof, make Z-pinStretch out upper and lower pre-soaking fiber fabric;
(5) adopt temperature to blow Z-pin higher than the thermal current of Z-pin glass transition temperature and stretch out pre-soaking fiber fabric portions,Make it softening, roll Z-pin extension is pasted at pre-soaking fiber fabric face with hot-pressing roller, the temperature of thermal current is selected formerBe: can within 5 seconds, make the softening minimum temperature of semi-solid preparation Z-pin;
(6) lay covering prepreg on upper and lower pre-soaking fiber fabric face, wherein manufactures resin and covering tree that Z-pin usesFat is QY8911 resin;
(7) carry out cure under pressure by the curing cycle of covering resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610120140.8A CN106342037B (en) | 2006-10-26 | 2006-10-26 | A kind of method that adopts semi-solid preparation Z-pin to manufacture K-cor sandwich |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610120140.8A CN106342037B (en) | 2006-10-26 | 2006-10-26 | A kind of method that adopts semi-solid preparation Z-pin to manufacture K-cor sandwich |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106342037B true CN106342037B (en) | 2010-10-06 |
Family
ID=57797876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610120140.8A Active CN106342037B (en) | 2006-10-26 | 2006-10-26 | A kind of method that adopts semi-solid preparation Z-pin to manufacture K-cor sandwich |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106342037B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406138A (en) * | 2020-09-24 | 2021-02-26 | 西北工业大学 | Method for reducing in-plane damage of Z-pin reinforced composite material laminated plate |
-
2006
- 2006-10-26 CN CN200610120140.8A patent/CN106342037B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406138A (en) * | 2020-09-24 | 2021-02-26 | 西北工业大学 | Method for reducing in-plane damage of Z-pin reinforced composite material laminated plate |
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Addressee: Li Yong Document name: payment instructions |
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