CN110341210A - The compression-moulding methods of thermoplastic composite component with I-shaped reinforcing rib - Google Patents
The compression-moulding methods of thermoplastic composite component with I-shaped reinforcing rib Download PDFInfo
- Publication number
- CN110341210A CN110341210A CN201910696498.2A CN201910696498A CN110341210A CN 110341210 A CN110341210 A CN 110341210A CN 201910696498 A CN201910696498 A CN 201910696498A CN 110341210 A CN110341210 A CN 110341210A
- Authority
- CN
- China
- Prior art keywords
- component
- shaped
- reinforcing rib
- prefabricated component
- molding
- 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.)
- Granted
Links
Classifications
-
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping 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
- B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides a kind of compression-moulding methods of the thermoplastic composite component of the I-shaped reinforcing rib of band, it first passes through one-step mould and thermoplastic composite prepreg is prefabricated into flat preform and upper lower edge block prefabricated component, then the prefabricated two C-shaped prefabricated components of secondary mould pressing are passed through to flat preform, work shape reinforcement component pre-assembled is carried out then in conjunction with upper lower edge block prefabricated component, the final component that carries out is pressed and molded three times.It is provided with up-narrow and down-wide inclined surface on the trapezoidal item in left and right of work shape reinforcement element mold, so that the downward molding pressure of briquetting is converted into the pressure for being directed toward the horizontal direction of I-shaped reinforcing rib by the trapezoidal item in left and right.The present invention overcomes the problems such as component thickness caused by multidirectional pressure transmission, complex component molding pressure transmission difficulty is uneven and porosity is high can not be carried out present in existing mould pressing process, to realize the low cost manufacturing of work shape reinforcement component, the application for advanced thermoplastic resin based composite material in aviation field lays the foundation.
Description
Technical field
The present invention relates to technical field of composite material molding, the thermoplastic composite material of especially a kind of I-shaped reinforcing rib of band
Expect the compression-moulding methods of component.
Background technique
Thermoplastic resin based composite material (abbreviation thermoplastic composite in the application) has preferable heat resistance, outstanding
Damage tolerance, good shock resistance and short molding cycle, high production efficiency, can form repeatedly, navigated in recent years
The more and more extensive concern of empty space industry.Using carbon fiber reinforced polyether-ether-ketone as the advanced thermoplastic composite of one kind of representative
It is applied on the major/minor load-carrying member of aviation field more and more, but thermoplastic composite is sticky high since matrix melts,
Thermoplastic resin is poor to the wellability and penetrability of fiber, and difficult, the more difficult exclusion of laminate void is bonded between adjacent layers, at
Resin flow difficulties during type, therefore its part manufacturing relies on high temperature and pressure.Existing thermosetting material mostly uses autoclave
Carry out hot-press solidifying molding, the safe working temperature of common autoclave and safe pressure respectively 250 DEG C or less and 1Mpa with
Under, which can satisfy the molding needs of thermosetting material with pressure.And as this thermoplasticity of carbon fiber reinforced polyether-ether-ketone
Material, forming temperature and pressure are respectively at 300 DEG C or more and 1Mpa or more, and therefore, existing thermoplastic material mostly uses mould
Molded technique.
Existing thermoplastic composite component mostly uses one-step mould or the molding method of secondary mould pressing: one-step mould at
Type technology is formed suitable for flat part, can then generate article surface out-of-flatness applied to structural member molding, and resin distribution is uneven,
Not the problems such as mechanical property not can guarantee.Secondary hot pressing molds molding method using former and formpiston, can only carry out unidirectional
Pressure transmission (generally vertical direction) is only applicable to the simple structural member molding such as " C " shape, L shape, i.e., first carry out flat part in advance at
Type, then hot mastication is carried out to flat part and carries out secondary consolidation molding.But it is common for this kind of aviation field of work shape reinforcing rib
Complex component, the unidirectional pressure transmission mold such as former, formpiston used in above-mentioned primary, secondary hot pressing moulding process in structure and closes
The complex component with work shape reinforcing rib is no longer applicable in mould method, in the prior art, there is no specifically for multiple in thermoplasticity
The molding die of condensation material work shape reinforcement rib component.It is I-shaped that Chinese patent 201710401959.X discloses a kind of composite material
Stringer moulding process, from its specification it is found that it provides a kind of heat for thermosetting material carried out in autoclave
Cured mold and curing process.Uniform pressure is formed to composite material using the pressure of institute's filling gas in autoclave, thus
The molding to the I-shaped stringer of composite material can be easily realized in autoclave, but autoclave equipment price is expensive, forming cost
Height, and moulding process is more complex, it is time-consuming, it is more difficult to meet industrialized requirement.Therefore, in the prior art, one kind is needed to be not required to
It to use autoclave and be suitable for thermoplastic composite work shape and reinforce rib component, economic, quick and reliable molding scheme,
Industrialization is moved towards to help thermoplastic composite work shape to reinforce rib component, promotes the development of China's aerospace cause.
Summary of the invention
It is an object of that present invention to provide a kind of compression molding sides of the thermoplastic composite component of the I-shaped reinforcing rib of band
Method, to solve the problems, such as to propose in background technique.
A kind of compression-moulding methods of the thermoplastic composite component of the I-shaped reinforcing rib of band, comprising the following steps:
S1 flat preform, upper limb block prefabricated component and lower edge block prefabricated component) are made: with the mode of molding by layer laying one
The thermoplastic composite prepreg one cut in advance risen is pressed into flat preform, and layer laying is existed with the mode of molding
The thermoplastic composite prepreg two cut in advance and prepreg three together is pressed into upper limb block prefabricated component under respectively
Edge block prefabricated component.
S2 it) makes C-shaped prefabricated component: flat preform made from step S1 bends to that C-shaped is made is prefabricated with the mode of molding
Part.
S3) make work shape reinforcement component: take two C-shaped prefabricated components as made from step S2, by two C-shaped prefabricated components back to
Back setting, notch are left side C-shaped prefabricated component towards left definition, and the definition on notch towards the right side is right side C-shaped prefabricated component, then cuts and separately take
Leaching tablet is simultaneously cut into filament or slice is used for as upper filling block and lower filling block by prepreg, and upper filling block is used to be arranged
In the Delta Region that upper limb block and two C-shaped prefabricated components are surrounded, lower filling block is pre- in lower edge block and two C-shapeds for being arranged
In the Delta Region that product is surrounded, from bottom to up successively by main body siding, lower edge block prefabricated component, lower filling block prepreg five,
The C-shaped prefabricated component of two back-to-back settings, upper filling block prepreg four and upper limb block prefabricated component are placed on work shape reinforcement component dies
It is with the mode of molding that main body siding, lower edge block prefabricated component, the C-shaped prefabricated component of two back-to-back settings and upper limb block is pre- in tool
Product is integrally pressed into work shape reinforcement component；Prepreg filament can be used with lower filling block for upper filling block and/or prepreg is thin
Item accumulation is constituted, and prepreg filament and/or the molding of prepreg slice can also be made after prefabricated component and fill out under as upper filling block
Fill block use.
Work shape reinforcement element mold in the step S3 includes pedestal and the upper mold group being set on the base, the upper mold
Group includes that left trapezoidal item, right trapezoidal item, left voussoir, right voussoir and briquetting, the right side wall of the trapezoidal item in a left side are provided with and left side C
The left side wall of the matched left forming surface of shape prefabricated component front flute profile, right trapezoidal item is provided with and right side C-shaped prefabricated component front flute profile
The right side wall of matched right forming surface, the left side wall of the trapezoidal item in a left side and right trapezoidal item is provided with inclined surface, the inclination
It is narrow end that the inclined direction in face, which is arranged so that left trapezoidal item and right trapezoidal item are corresponding with the upper end in the region of inclined surface, and lower end is
Wide end；The briquetting is used to the downward molding pressure provided by external pressure mechanism passing to the trapezoidal item in left and right, the left side
Voussoir and right voussoir are respectively fixedly disposed at the left and right edges position of pressing plate bottom surface, and the inner sidewall of left voussoir is arranged to trapezoidal with a left side
The matched bevel structure in inclined surface on block, the inner sidewall of right voussoir are also provided with into matched tiltedly with the inclined surface on right trapezoid block
Face structure；Bevel structure between the trapezoidal item of left and right voussoir and left and right makes a part of the downward molding pressure of briquetting left
Right trapezoidal item is converted into the pressure for being directed toward the horizontal direction of I-shaped reinforcing rib, i.e., turns the molding pressure of single vertical direction
It turns to downwards plus the molding pressure in left and right both direction totally three directions.
The tilt angle of the inclined surface of the trapezoidal item in left and right is 65~85 °, the i.e. inclined surface and bottom surface of the trapezoidal item in left and right
Between angle be equal to 65~85 °.
Further, the vertical dimension of the left and right voussoir is set as meeting the following conditions: when the briquetting is located at molding
When stroke end, i.e., when the described briquetting is located at the terminal of downward displacement stroke, the bottom surface of the trapezoidal item in left and right just with pedestal
Pressure-bearing surface offset, and intermediate region of the briquetting bottom surface between left voussoir and right voussoir also just with trapezoidal of left and right top surface
It offsets, at this point, the state for also having gap between the bottom surface of left and right voussoir and the pressure-bearing surface of pedestal or not up to offseting, to prevent
Left and right voussoir bottom end influences molding process.
Further, briquetting bottom surface intermediate region is respectively arranged with left recessing groove at the position of close left and right voussoir
With right recessing groove, left recessing groove and right recessing groove are for preventing from causing to be molded situation not in place because of the out-of-flatness of briquetting bottom surface.
Further, the pressure-bearing surface of the pedestal is concavely provided with the groove for placement part or whole main body sidings, institute
The lateral dimension that groove transverse direction ruler is no more than the trapezoidal item in left and right is stated, the depth of groove is less than or equal to the thickness of main body siding, makes
The main wall plate top surface that must be placed in groove is greater than or equal to the height of pedestal pressure-bearing surface, consequently facilitating main body siding and I-shaped
Shape reinforcing rib is combined into one in mold process.
Further, the left and right rim portion of the pedestal is not provided with the left side for being limited to briquetting and left and right voussoir
Baffle and right shell body, right baffle-plate and right shell body are vacillated for preventing in mold process briquetting and left and right voussoir that transverse direction occurs, thus
Accurately guarantee the relative position between I-shaped reinforcing rib and main body siding.
Further, the main body siding is connected with more I-shaped reinforcing ribs, correspondingly, being arranged on the pedestal
There are multiple groups upper mold group, the corresponding I-shaped reinforcing rib of every group of upper mold.
Further, the flat preform in the step S1, upper limb block prefabricated component and lower edge block prefabricated component are all made of flat
Board mold compression molding, the flat plate mold includes upper module and lower module, and the bottom surface of upper module and the top surface of lower module are
Straight type face for pressing to prepreg.
Further, the C-shaped prefabricated component in the step S2 is pressed and molded using C-shaped prefabricated-member mould, and the C-shaped is prefabricated
Part mold includes the positioning being provided on upper formpiston and the former under, former for positioning and placing flat preform
Slot, the slot bottom of locating slot are provided with the cavity for straight flat preform to be pressed into curved C-shaped prefabricated component, the formpiston
On be provided with the protrusion extended downwardly, type identical with final obtained C-shaped prefabricated component front flute profile is provided on protrusion
Face.
Preferably, the material of I-shaped reinforcing rib and main body siding is all made of thermoplastic resin based composite material, the heat
Fibre reinforced materials in plastic resin based composites uses carbon fiber or glass fibre, the thermoplastic resin-based composite wood
Resin base in material is described to be molded into pattern using the resins such as polypropylene (PP), polyether-ether-ketone (PEEK) or polyphenylene sulfide (PPS)
The material of tool is hard metal material.
When the material of I-shaped reinforcing rib and main body siding is all made of this thermoplastic composite of carbon fiber reinforced polyether-ether-ketone
The technological parameter condition of the step S1~S3 is as follows when material:
In the step S1, flat preform, upper limb block prefabricated component and the compression molding temperature of lower edge block prefabricated component are
370 DEG C~380 DEG C, the molding pressure of application is 1MPa~4MPa, and soaking time is 10~30min, when the holding of molding pressure
Between be 50min~60min；
In the step S2, the compression molding temperature of C-shaped prefabricated component is 370 DEG C~380 DEG C, 10~30min of soaking time,
Apply molding pressure 1MPa~2MPa, the retention time of molding pressure is 50~60min；
In the step S3, the compression molding temperature of work shape reinforcement component is 390 DEG C~410 DEG C, soaking time 20~
40min applies molding pressure 3MPa~5MPa, and the retention time of molding pressure is 50~70min.
The present invention at least has the advantages that
The present invention provides a kind of compression-moulding methods of the thermoplastic composite component of the I-shaped reinforcing rib of band, first lead to
It crosses one-step mould and thermoplastic composite prepreg is prefabricated into certain thickness plate, then pass through secondary mould pressing prefabricated two
A C-shaped prefabricated component carries out work shape reinforcement component pre-assembled then in conjunction with upper lower edge block prefabricated component, finally carries out component in a mold
It is pressed and molded three times.Material prepreg is first pressed into flat preform with molding die, then flat preform is bent
At C-shaped prefabricated component, then by the C-shaped prefabricated component of two pieces of back-to-back settings and upper limb block prepreg, lower edge block prepreg and main wall
Plate is integrally pressed into work shape reinforcement component, and wherein main body siding can be prepreg or prefabricated component.
It is tired the present invention overcomes multidirectional pressure transmission, complex component molding pressure transmission can not be carried out present in existing mould pressing process
The problems such as component thickness caused by difficulty is uneven and porosity is high, so that the low cost manufacturing of work shape reinforcement component is realized, for first
Application into thermoplastic resin based composite material in aviation field lays the foundation.
In the present invention, molding die includes flat plate mold, C-shaped prefabricated-member mould and work shape reinforcement element mold, plate
Mold is used to for thermoplastic composite prepreg being pressed into flat preform, and C-shaped prefabricated-member mould is used for flat preform
It is pressed into C-shaped prefabricated component, work shape reinforcement element mold is used to for the C-shaped prefabricated component of two pieces of back-to-back settings to be pressed into I-shaped add
Strengthening tendons, work shape reinforcement element mold include pedestal and the one or more groups of upper mold groups being set on the base.
In the present invention, C-shaped prefabricated component is molded by flat preform, and it is prefabricated only flat preform need to be placed on C-shaped
It can be embossed in the locating slot of part mold, compared to the existing molding side using prepreg paving on C-shaped punch-pin
Method is got up more convenient with die assembly processing of the invention, and locating slot has positioning action to flat preform, obtains
C-shaped preform sizes precision it is also higher, it is time saving and energy saving, reduce cost and again reliable.
The upper mold group of work shape reinforcement element mold is internally provided with inclined surface, is provided with and up-narrow and down-wide inclines on the voussoir of left and right
Inclined-plane, be provided on the trapezoid block of left and right with the matched inclined surface wide at the top and narrow at the bottom in inclined surface on the voussoir of left and right, pass through left and right two
Side respectively forms the inclined surface that can be slided relatively of one group of fitting, so that the downward molding pressure of briquetting is converted by the trapezoidal item in left and right
For the pressure of the horizontal direction of the I-shaped reinforcing rib of direction, i.e., converts the molding pressure of single vertical direction to and add downwards
The molding pressure in left and right both direction totally three directions is simplified and is set without the molding pressure of horizontal direction is in addition arranged
Standby and technique, entire upper mold group and pedestal can be put between the bolster of vulcanizing press, and utilize vulcanizing press
Heating system carries out heat temperature raising, economical, quick and reliable without vacuumizing, and promotes the product with I-shaped reinforcing rib
Mass production.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the compression-moulding methods block diagram of the work shape reinforcement component of the preferred embodiment of the present invention；
Fig. 2 is the flat plate mold cross-sectional cut-away structure chart of the preferred embodiment of the present invention；
Fig. 3 is the C-shaped prefabricated-member mould cross-sectional cut-away structure chart of the preferred embodiment of the present invention；
Fig. 4 is work shape reinforcement element mold exploded cross-sectional formula structure chart (the corresponding main body of the preferred embodiment of the present invention
Siding only has an I-shaped reinforcing rib)；
Fig. 5 is the work shape reinforcement component of the preferred embodiment of the present invention when main body siding only has an I-shaped reinforcing rib
Each component of mold is located at cross-sectional cut-away structure chart when moulding stroke terminal；
Fig. 6 is each component of work shape reinforcement element mold of the invention when main body siding has two I-shaped reinforcing ribs
Cross-sectional cut-away structure chart when positioned at moulding stroke terminal.
In figure: 1- flat plate mold, 10- flat preform, 101- prepreg one, 11- upper module, 12- lower module, 2-C shape
Prefabricated-member mould, 20-C shape prefabricated component, 21- top margin, the bottom edge 22-, 23- formpiston, the protrusion 231-, 24- former, 25- locating slot,
26- cavity, 261- rounded corner, 3- work shape reinforcement element mold, 31- pedestal, 311- pressure-bearing surface, 312- groove, 313- right baffle-plate,
314- right shell body, the left trapezoidal item of 32-, the left forming surface of 321-, 322- "Left"-deviationist inclined-plane, the right trapezoidal item of 33-, the right forming surface of 331-,
332- Right deviation inclined-plane, the left voussoir of 34-, the right voussoir of 35-, 36- briquetting, the left recessing groove of 361-, the right recessing groove of 362-, 4- is I-shaped to be added
Strengthening tendons, 41- upper limb block prefabricated component, 410- prepreg two, 42- lower edge block prefabricated component, 420- prepreg three, the left side 43- C-shaped are prefabricated
Part, C-shaped prefabricated component on the right side of 44-, the upper filling block of 45-, the upper filling block prepreg four of 450-, filling block under 46-, filling block under 460-
Prepreg five, 5- inverted draw cut, 6- kerve, 7- main body siding.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
Referring to the compression-moulding methods step and Fig. 2~figure of the work shape reinforcement component of the preferred embodiment of the present invention of Fig. 1
The set mold selected of the compression-moulding methods of the work shape reinforcement component of 6 preferred embodiment of the present invention.
In the present embodiment, upper limb block, lower edge block, upper filling block, lower filling block, I-shaped reinforcing rib and main body siding material
Matter is all made of this thermoplastic resin based composite material of carbon fiber reinforced polyether-ether-ketone.
Referring to Fig. 1, the compression-moulding methods of the work shape reinforcement component of the present embodiment the following steps are included:
S1 flat preform 10, upper limb block prefabricated component 41 and lower edge block prefabricated component 42) are made: being spread layer with the mode of molding
The thermoplastic composite prepreg 1 cut in advance stacked is pressed into flat preform, with the mode of molding
The thermoplastic composite prepreg 2 410 of layer laying cutting in advance together is pressed into respectively with prepreg 3 420
Upper limb block prefabricated component and lower edge block prefabricated component.
The ideal forming temperature of carbon fiber reinforced polyetheretherketonecomposite composite material is 370 DEG C~410 DEG C, prepreg one, preimpregnation
Material two and the thickness in monolayer of prepreg three are 0.14mm, calculate the prepreg number of plies according to thickness in monolayer and target molding thickness
Afterwards, first time compression molding can be carried out, flat preform, upper limb block prefabricated component and lower edge block prefabricated component are obtained.According to I-shaped
The size of shape reinforcing rib 4 calculates flat preform, upper limb block prefabricated component and lower edge block prefabricated component people's size that need be preforming,
A certain amount of prepreg one, prepreg two and prepreg three are cut respectively, and flat plate mold as shown in Figure 2 is set.For as far as possible
It reduces high temperature and forms the influence to composite property repeatedly, the temperature of compression molding is 370 DEG C~380 DEG C for the first time, is applied
Pressure is 1MPa~4MPa, and soaking time is 10~30min, and the dwell time is 50min~60min.
S2 it) makes C-shaped prefabricated component: C-shaped is made in the press-bending of flat preform made from step S1 with C-shaped prefabricated-member mould 2
Prefabricated component 2.
It is molded for the second time pre-formed after flat preform compression molding, obtains C-shaped prefabricated component, molding die is as schemed
Shown in 3.Influence to part performance is formed repeatedly to reduce high temperature as far as possible, and it is 370 DEG C~380 that second, which is pressed and molded temperature,
DEG C, 10~30min of soaking time.To avoid excessive glue in the excessive forming process of pressure from causing product in uneven thickness, briquetting pressure
1MPa~2MPa, dwell time are 50~60min.
S3 it) makes work shape reinforcement component: taking C-shaped prefabricated component made from two step S2, two C-shaped prefabricated components are back-to-back
Setting, notch are left side C-shaped prefabricated component towards left definition, and the definition on notch towards the right side is right side C-shaped prefabricated component, then cuts prepreg
Leaching tablet is simultaneously cut into filament or slice is used for as upper filling block 45 and lower filling block 46 by piece, and upper filling block exists for being arranged
In the Delta Region that upper limb block and two C-shaped prefabricated components are surrounded, lower filling block is prefabricated in lower edge block and two C-shapeds for being arranged
In the Delta Region that part is surrounded, from bottom to up successively by main body siding, lower edge block prefabricated component, lower filling block prepreg 5 460,
The C-shaped prefabricated component of two back-to-back settings, upper filling block prepreg 4 450 and upper limb block prefabricated component are placed on work shape reinforcement component
In mold, with the mode of molding by main body siding, lower edge block prefabricated component, five, the two back-to-back settings of lower filling block prepreg C
Shape prefabricated component, upper filling block prepreg four and upper limb block prefabricated component are integrally pressed into work shape reinforcement component；
Work shape reinforcement molding component can be carried out after prefabricated complete a pair of of C-shaped prefabricated component, pre-assembled mode is as shown in Figure 1, work
All components of shape reinforcement component are all made of prefabricated component and carry out pre-assembled.Product must in the horizontal direction and vertically according to the technological requirements
Direction is pressurized simultaneously just can guarantee Forming Quality, and existing most press can only all provide uniaxial pressure and (generally erect
Histogram to), therefore devise work shape reinforcement element mold of the invention, mold be placed on press by longitudinal pressure, in voussoir
And product in specific forming process, after the completion of prepreg overlay, can will be made simultaneously by transverse pressure under the squeezing action of trapezoidal item
Part and mold temperature apply pressure 3MPa~5MPa after being heated to 390 DEG C~410 DEG C simultaneously, keep the temperature 20min~40min, pressure maintaining
50min~70min.It is cooled to room temperature demoulding to mold, thermoplastic composite work shape reinforcement component is prepared and completed.
The set mold selected of the compression-moulding methods of the present embodiment include flat plate mold 1, C-shaped prefabricated-member mould 2 with
And work shape reinforcement element mold 3, flat plate mold are used to for several stackings to be located at the thermoplastic composite material cut in advance together
Material prepreg is pressed into flat preform 10, and C-shaped prefabricated-member mould is used to flat preform 10 being pressed into C-shaped prefabricated component
20, in the present embodiment, C-shaped prefabricated component 20 includes left side C-shaped prefabricated component 43 and right side C-shaped prefabricated component 44, work shape reinforcement component dies
Tool 3 is used for upper limb block prepreg 410, lower edge block prepreg 420, left side C-shaped prefabricated component 43 and right side C-shaped prefabricated component 44 together
It is pressed into I-shaped reinforcing rib 4, the upper limb block for being pressed into I-shaped reinforcing rib is arranged in parallel up and down with lower edge block, on
Edge block and lower edge block can be thermoplastic composite prepreg, be also possible to thermoplastic composite prefabricated component, for pressing
Be made I-shaped reinforcing rib the left side C-shaped prefabricated component and right side C-shaped prefabricated component be arranged among upper limb block and lower edge block and
Back-to-back to be symmetrical arranged, the back side direction of C-shaped prefabricated component is as shown in figure 3, refer to the side opposite with the vertical groove face of C-shaped prefabricated component.
In the present embodiment, work shape reinforcement element mold 3 includes pedestal 31 and the upper mold group being set on the base, the upper mold
Group includes that left trapezoidal item 32, right trapezoidal item 33, left voussoir 34, right voussoir 35 and briquetting 36, the right side wall of the trapezoidal item in a left side are set
It is equipped with and is provided with and right side C-shaped with the matched left forming surface 321 of left side C-shaped prefabricated component front flute profile, the left side wall of right trapezoidal item
The right side wall of the matched right forming surface 331 of prefabricated component front flute profile, the left side wall of the trapezoidal item in a left side and right trapezoidal item is set respectively
It is equipped with left-leaning inclined-plane 322 and Right deviation inclined-plane 332, the inclined direction of the inclined surface is arranged so that left trapezoidal item and right trapezoidal item
The upper end for being corresponding with the region of inclined surface is narrow end, and lower end is wide end；The briquetting is used to be provided by external pressure mechanism
Downward molding pressure passes to the trapezoidal item in left and right, and external pressure machine can be vulcanizing press, by this work shape reinforcement component dies
Tool is placed between the bolster of vulcanizing press, that is, can be embossed processing, the flat plate mold 1 and C-shaped preform mold
Tool 2 can also carry out molding processing with vulcanizing press, and the left voussoir and right voussoir are respectively fixedly disposed at a pressing plate bottom surface left side
At right edge position, left voussoir and lateral symmetry central symmetry of the right voussoir about briquetting, the inner sidewall of left voussoir be arranged to
The left-leaning matched bevel structure in inclined-plane, the inner sidewall of right voussoir are also provided with into and the matched bevel structure in Right deviation inclined-plane；Left and right wedge
Bevel structure between the trapezoidal item of block and left and right converts a part of the downward molding pressure of briquetting by the trapezoidal item in left and right
For the pressure of the horizontal direction of the I-shaped reinforcing rib of direction, i.e., converts the molding pressure of single vertical direction to and add downwards
The molding pressure in left and right both direction totally three directions.
In the present embodiment, the tilt angle on left-leaning inclined-plane is 80 °, i.e. the bottom surface on lateral tilting inclined-plane and the trapezoidal item in left and right
Angle between (being also horizontal plane) is equal to 80 °.
In the present embodiment, the target that the vertical height of the trapezoidal item in left and right is equal to final obtained I-shaped reinforcing rib is high
Degree, by the trapezoidal item in left and right by the back-to-back setting that offsets of left and right sides C-shaped prefabricated component, the trapezoidal item in left and right can be on the top of left and right forming surface
Enclose the inverted draw cut 5 of an opening upwards at portion position, and the bottom position of left and right forming surface enclose one be open to
Under kerve 6, the depth of the inverted draw cut is greater than the thickness of the top margin 21 of left and right sides C-shaped prefabricated component, and the depth of the kerve is greater than
The thickness on the bottom edge 22 of left and right sides C-shaped prefabricated component, in order to be placed in inverted draw cut and kerve respectively and position upper limb block and lower edge
Block is molded.
In the present embodiment, left trapezoidal bottom continues in the end on left-leaning inclined-plane is provided with left vertical plane 323, right trapezoidal item
Bottom continues in the end on Right deviation inclined-plane is provided with left vertical plane 333, on the one hand vertical plane can prevent from being located at molding row in briquetting
When journey terminal, trapezoidal of left and right bottom and left and right voussoir bottom interfere or are molded situation not in place because of scale error,
On the other hand the lateral dimension that can reduce the trapezoidal item in left and right, reduces the occupancy in space, is convenient for the preceding entire upper mold group of molding
It is pre-assembled.
In the present embodiment, briquetting bottom surface intermediate region is respectively arranged with left resigning at the position of close left and right voussoir
Slot 361 and right recessing groove 362, left recessing groove and right recessing groove are for preventing from influencing lateral tilting inclined-plane because of the out-of-flatness of briquetting bottom surface
To the slide-and-guide of left and right voussoir, convenient for preferably conversion and transfer molding pressure.
In the present embodiment, the pressure-bearing surface 311 of the pedestal is concavely provided with for the recessed of placement part or whole main body siding 7
Slot 312, the groove transverse direction ruler are no more than the lateral dimension of the trapezoidal item in left and right, and the depth of groove is less than or equal to main body siding 7
Thickness so that the main wall plate top surface being placed in groove and the height for being greater than or equal to pedestal pressure-bearing surface, consequently facilitating main
Body wall plate is combined into one in mold process with I-shaped reinforcing rib, forms work shape reinforcement component.Main body siding refers to will be compound
Material prepreg precompressed formed the I-shaped reinforcing rib main body to be installed and be on active service (main body can be aircraft wing shell or
Other small members) covering prefabricated component.When main wall board foot lateral dimension is smaller, for the institute in conjunction with I-shaped reinforcing rib
Stating siding can be laminated by several layers fibre reinforced composites prepreg block.
In the present embodiment, the vertical dimension of the left and right voussoir is set as meeting the following conditions: when the briquetting is located at mould
Press stroke end when, i.e., when the described briquetting is located at the terminal of downward displacement stroke, the bottom surface of the trapezoidal item in left and right just with bottom
Seat pressure-bearing surface offset, and intermediate region of the briquetting bottom surface between left voussoir and right voussoir also just with the trapezoidal item top in left and right
Face offsets, at this point, the state for also having gap between the bottom surface of left and right voussoir and the pressure-bearing surface of pedestal or not up to offseting, to prevent
Only voussoir bottom end in left and right influences molding process.
In the present embodiment, left side wall, the right side wall of briquetting are common with the lateral wall of the lateral wall of left voussoir, right voussoir respectively
One piece of plane is constituted, the left and right rim portion of the pedestal is not provided with the right baffle-plate for being limited to briquetting and left and right voussoir
313 with right shell body 314, the inner sidewall of right baffle-plate and right shell body be that the inner sidewall of flat face and the two is arranged in parallel, briquetting
Transverse width is equal to the lateral distance between left baffle, and the inner sidewall of right baffle-plate and the lateral wall of left voussoir are affixed, right gear
The inner sidewall of plate and the lateral wall of right voussoir are affixed, and right baffle-plate and right shell body are for preventing briquetting and left and right voussoir in mold process
Occur laterally to vacillate, to accurately guarantee the relative position between I-shaped reinforcing rib and main body siding.
Referring to another form of the work shape reinforcement element mold of the invention of Fig. 6, main body siding is connected with two
I-shaped reinforcing rib, correspondingly, two groups of upper mold groups are provided on the pedestal, the corresponding I-shaped reinforcement of every group of upper mold
Muscle, and the briquetting of two groups of upper mold groups is wholely set, the left and right voussoir of two groups of upper mold group adjacent positions is also provided with integrally.
Referring to fig. 2, in the present embodiment, the flat plate mold 1 includes upper module 11 and lower module 12, the bottom surface of upper module and
The top surface of lower module is the straight type face for pressing to thermoplastic composite material prepreg, and upper module top surface is under
Module bottom surface is flat face, in order to be bonded with the bolster of vulcanizing press, convenient for passing to heat and molding pressure
It passs, flat preform can be obtained after flat plate mold is suppressed on vulcanizing press in thermoplastic composite material prepreg
10。
Referring to Fig. 3, in the present embodiment, the C-shaped prefabricated-member mould 2 include in upper formpiston 23 and the former 24 under,
The locating slot 25 for positioning and placing flat preform 10, the side wall and flat preform foreign steamer of locating slot are provided on former
Exterior feature matching, to play good positioning action to flat preform, without positioning element is in addition arranged, simply and conveniently,
The slot bottom of locating slot is provided with cavity 26, and cavity bottom surface is set as identical as final obtained C-shaped prefabricated component back side profile
Type face one, be provided on the formpiston extend downwardly with the matched protrusion 231 of the cavity, be provided on protrusion with finally
The obtained identical type face two of C-shaped prefabricated component front flute profile, it is straight at the temperature and pressure that vulcanizing press provides
Flat preform is shaped to C-shaped prefabricated component under the collective effect through protrusion and cavity.The position of cavity is according to obtained C-shaped
Preform structure determines that, referring to Fig. 3, cavity is in a lateral direction closer to side wall on the right of locating slot, then the C-shaped laid flat obtained
The shorter edge of prefabricated component is located at the right.In the present embodiment, top side wall and the corner at the position of locating slot boundary of cavity are set
It is equipped with the rounded corner 261 to bend convenient for flat preform.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of compression-moulding methods of the thermoplastic composite component of the I-shaped reinforcing rib of band, which is characterized in that including with
Lower step:
S1 flat preform (10), upper limb block prefabricated component (41) and lower edge block prefabricated component (42)) are made: using the mode of molding by layer
The thermoplastic composite prepreg one (101) cut in advance of laying together is pressed into flat preform, with molding
The thermoplastic composite prepreg two (410) that in advance cuts of the mode by layer laying together and prepreg three (420) point
It is not pressed into upper limb block prefabricated component and lower edge block prefabricated component；
S2 C-shaped prefabricated component (20)) are made: flat preform made from step S1 bends to that C-shaped is made is prefabricated with the mode of molding
Part；
S3) make work shape reinforcement component: take two C-shaped prefabricated components as made from step S2, by two C-shaped prefabricated components (20) back to
Back setting, notch are left side C-shaped prefabricated component (43) towards left definition, and the definition on notch towards the right side is right side C-shaped prefabricated component (44), then
It cuts prepreg and leaching tablet is cut into filament or slice is used to above fill out as upper filling block (45) and lower filling block (46)
Block is filled for being arranged in the Delta Region that upper limb block and two C-shaped prefabricated components are surrounded, and lower filling block is for being arranged in lower edge
In the Delta Region that block and two C-shaped prefabricated components are surrounded, from bottom to up successively by main body siding (7), lower edge block prefabricated component
(42), lower filling block prepreg five (460), the C-shaped prefabricated component of two back-to-back settings, upper filling block prepreg four (450) with
Upper limb block prefabricated component (41) is placed in work shape reinforcement element mold (3), with the mode of molding that main body siding, lower edge block is prefabricated
Part, the C-shaped prefabricated component of two back-to-back settings and upper limb block prefabricated component are integrally pressed into work shape reinforcement component；
Work shape reinforcement element mold (3) in the step S3 includes pedestal (31) and the upper mold group that is set on the base, described
Upper mold group includes left trapezoidal item (32), right trapezoidal item (33), left voussoir (34), right voussoir (35) and briquetting (36), the left ladder
The right side wall of shape item is provided with and the matched left forming surface (321) of left side C-shaped prefabricated component front flute profile, the left side wall of right trapezoidal item
It is provided with and the matched right forming surface (331) of right side C-shaped prefabricated component front flute profile, the left side wall of the trapezoidal item in a left side and right trapezoidal
The right side wall of item is provided with inclined surface (322/332), and the inclined direction of the inclined surface is arranged so that left trapezoidal item and the right side
The upper end that trapezoidal item is corresponding with the region of inclined surface is narrow end, and lower end is wide end；The briquetting is used for will be by external pressure mechanism
The downward molding pressure provided passes to the trapezoidal item in left and right, and the left voussoir and right voussoir are respectively fixedly disposed at pressing plate bottom surface
At left and right edges position, the inner sidewall of left voussoir is arranged to and the matched bevel structure in inclined surface on left trapezoid block, right voussoir
Inner sidewall be also provided with into and the matched bevel structure in inclined surface on right trapezoid block；Between the trapezoidal item of left and right voussoir and left and right
Bevel structure makes a part of the downward molding pressure of briquetting be converted into the I-shaped reinforcing rib of direction by the trapezoidal item in left and right
The pressure of horizontal direction converts the molding pressure of single vertical direction to and adds left and right both direction totally three sides downwards
To molding pressure.
2. a kind of compression molding side of the thermoplastic composite component of the I-shaped reinforcing rib of band according to claim 1
Method, which is characterized in that the tilt angle of the inclined surface of the trapezoidal item in left and right is 65~85 °, the vertical ruler of the left and right voussoir
Very little to be set as meeting the following conditions: when the briquetting is located at moulding stroke terminal, i.e., the described briquetting is located at downward displacement stroke
Terminal when, the bottom surface of the trapezoidal item in left and right just offsets with the pressure-bearing surface of pedestal (311), and briquetting bottom surface is located at left voussoir
Intermediate region between right voussoir also just offsets with trapezoidal of left and right top surface, at this point, the bottom surface of left and right voussoir and pedestal
The state for also having gap between pressure-bearing surface or not up to offseting, to prevent left and right voussoir bottom end from influencing molding process.
3. a kind of compression molding side of the thermoplastic composite component of the I-shaped reinforcing rib of band according to claim 1
Method, which is characterized in that briquetting bottom surface intermediate region is respectively arranged with left recessing groove at the position of close left and right voussoir
(361) with right recessing groove (362), left recessing groove and right recessing groove for prevent from causing because of the out-of-flatness of briquetting bottom surface molding less than
The case where position.
4. a kind of compression molding side of the thermoplastic composite component of the I-shaped reinforcing rib of band according to claim 1
Method, which is characterized in that the pressure-bearing surface of the pedestal is concavely provided with the groove for placement part or whole main body sidings (7)
(312), the groove transverse direction ruler is no more than the lateral dimension of the trapezoidal item in left and right, and the depth of groove is less than or equal to main body siding
Thickness, so that the main wall plate top surface being placed in groove is greater than or equal to the height of pedestal pressure-bearing surface, consequently facilitating main wall
Plate is combined into one in mold process with I-shaped reinforcing rib.
5. a kind of compression molding side of the thermoplastic composite component of the I-shaped reinforcing rib of band according to claim 1
Method, which is characterized in that the left and right rim portion of the pedestal is not provided with the left gear for being limited to briquetting and left and right voussoir
Plate (313) and right shell body (314), right baffle-plate and right shell body are for preventing briquetting and left and right voussoir in mold process from laterally trip occurs
It moves, to accurately guarantee the relative position between I-shaped reinforcing rib and main body siding.
6. a kind of compression molding side of the thermoplastic composite component of the I-shaped reinforcing rib of band according to claim 1
Method, which is characterized in that the main body siding is connected with more I-shaped reinforcing ribs, correspondingly, being provided on the pedestal
Multiple groups upper mold group, the corresponding I-shaped reinforcing rib of every group of upper mold.
7. a kind of thermoplastic composite component of the I-shaped reinforcing rib of band described according to claim 1~any one of 6
Compression-moulding methods, which is characterized in that flat preform in the step S1 is pressed and molded using flat plate mold (1), institute
Stating flat plate mold includes upper module (11) and lower module (12), and the bottom surface of upper module and the top surface of lower module are for preimpregnation
The straight type face of tablet pressure.
8. a kind of thermoplastic composite component of the I-shaped reinforcing rib of band described according to claim 1~any one of 6
Compression-moulding methods, which is characterized in that C-shaped prefabricated component in the step S2 is molded into using C-shaped prefabricated-member mould (2)
Type, the C-shaped prefabricated-member mould include be provided on upper formpiston (23) and the former (24) under, former for position with
The locating slot (25) of flat preform is placed, the slot bottom of locating slot is provided with curved for straight flat preform to be pressed into
The cavity (26) of C-shaped prefabricated component is provided with the protrusion (231) extended downwardly on the formpiston, is provided on protrusion and final institute
The obtained identical type face of C-shaped prefabricated component front flute profile.
9. a kind of compression molding side of the thermoplastic composite component of the I-shaped reinforcing rib of band according to claim 8
Method, which is characterized in that the material of I-shaped reinforcing rib and main body siding uses thermoplastic resin based composite material, the thermoplasticity
Fibre reinforced materials in polymer matrix composites uses carbon fiber or glass fibre, in the thermoplastic resin based composite material
Resin base use polypropylene, polyether-ether-ketone or polyphenylene sulfide, the material of the compression molding die is hard metal material.
10. a kind of compression molding side of the thermoplastic composite component of the I-shaped reinforcing rib of band according to claim 9
Method, which is characterized in that the upper limb block, lower edge block, upper filling block, lower filling block, I-shaped reinforcing rib and main body siding material
Matter is all made of this thermoplastic resin based composite material of carbon fiber reinforced polyether-ether-ketone, in the step S1, flat preform, on
The compression molding temperature of edge block prefabricated component and lower edge block prefabricated component is 370 DEG C~380 DEG C, the molding pressure of application be 1MPa~
4MPa, soaking time are 10~30min, and the retention time of molding pressure is 50min~60min；
In the step S2, the compression molding temperature of C-shaped prefabricated component is 370 DEG C~380 DEG C, 10~30min of soaking time, is applied
Molding pressure 1MPa~2MPa, the retention time of molding pressure are 50~60min；
In the step S3, the compression molding temperature of work shape reinforcement component is 390 DEG C~410 DEG C, 20~40min of soaking time,
Apply molding pressure 3MPa~5MPa, the retention time of molding pressure is 50~70min.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696498.2A CN110341210B (en) | 2019-07-30 | 2019-07-30 | Compression molding method of thermoplastic composite material component with I-shaped reinforcing ribs |
| PCT/CN2020/103851 WO2021018002A1 (en) | 2019-07-30 | 2020-07-23 | Compression molding mold assembly and method for i-shaped reinforcement member of thermoplastic composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696498.2A CN110341210B (en) | 2019-07-30 | 2019-07-30 | Compression molding method of thermoplastic composite material component with I-shaped reinforcing ribs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110341210A true CN110341210A (en) | 2019-10-18 |
| CN110341210B CN110341210B (en) | 2020-04-24 |
Family
ID=68179137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910696498.2A Active CN110341210B (en) | 2019-07-30 | 2019-07-30 | Compression molding method of thermoplastic composite material component with I-shaped reinforcing ribs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110341210B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820169A (en) * | 2019-11-04 | 2020-02-21 | 江苏天鸟高新技术股份有限公司 | T-shaped structure fiber needling preform |
| CN111016385A (en) * | 2019-12-09 | 2020-04-17 | 宁波远景汽车零部件有限公司 | Method for wrapping spare tire cover plate of automobile trunk |
| WO2021018002A1 (en) * | 2019-07-30 | 2021-02-04 | 中南大学 | Compression molding mold assembly and method for i-shaped reinforcement member of thermoplastic composite material |
| CN112606271A (en) * | 2020-12-14 | 2021-04-06 | 陕西天翌天线股份有限公司 | I-beam compression molding die and using method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003068472A1 (en) * | 2002-02-14 | 2003-08-21 | Ctmi Cotton Textiles Pour Materiaux Innovants | Pre-formed fibres and method for production thereof |
| EP1543941A1 (en) * | 2003-12-16 | 2005-06-22 | Airbus Espana, S.L. | Process and tooling for reducing thermally induced residual stresses and shape distortions in monolithic composite structures |
| WO2014200675A1 (en) * | 2013-06-13 | 2014-12-18 | The Boeing Company | Method and apparatus for fabricating composite stringers |
| CN106739004A (en) * | 2017-01-16 | 2017-05-31 | 江苏恒神股份有限公司 | The preparation method and gained Special-shaped I beam of carbon fibre composite Special-shaped I beam |
| CN108789962A (en) * | 2018-07-13 | 2018-11-13 | 中国航发北京航空材料研究院 | A kind of mold preparing Composite Stiffened Structures |
| CN108973159A (en) * | 2017-05-31 | 2018-12-11 | 中国商用飞机有限责任公司 | A kind of I-shaped stringer moulding process of composite material |
| CN109927316A (en) * | 2019-04-01 | 2019-06-25 | 苏州华特时代碳纤维有限公司 | A kind of batch forming method of composite material I-shaped beam |
-
2019
- 2019-07-30 CN CN201910696498.2A patent/CN110341210B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003068472A1 (en) * | 2002-02-14 | 2003-08-21 | Ctmi Cotton Textiles Pour Materiaux Innovants | Pre-formed fibres and method for production thereof |
| EP1543941A1 (en) * | 2003-12-16 | 2005-06-22 | Airbus Espana, S.L. | Process and tooling for reducing thermally induced residual stresses and shape distortions in monolithic composite structures |
| WO2014200675A1 (en) * | 2013-06-13 | 2014-12-18 | The Boeing Company | Method and apparatus for fabricating composite stringers |
| CN106739004A (en) * | 2017-01-16 | 2017-05-31 | 江苏恒神股份有限公司 | The preparation method and gained Special-shaped I beam of carbon fibre composite Special-shaped I beam |
| CN108973159A (en) * | 2017-05-31 | 2018-12-11 | 中国商用飞机有限责任公司 | A kind of I-shaped stringer moulding process of composite material |
| CN108789962A (en) * | 2018-07-13 | 2018-11-13 | 中国航发北京航空材料研究院 | A kind of mold preparing Composite Stiffened Structures |
| CN109927316A (en) * | 2019-04-01 | 2019-06-25 | 苏州华特时代碳纤维有限公司 | A kind of batch forming method of composite material I-shaped beam |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021018002A1 (en) * | 2019-07-30 | 2021-02-04 | 中南大学 | Compression molding mold assembly and method for i-shaped reinforcement member of thermoplastic composite material |
| CN110820169A (en) * | 2019-11-04 | 2020-02-21 | 江苏天鸟高新技术股份有限公司 | T-shaped structure fiber needling preform |
| CN111016385A (en) * | 2019-12-09 | 2020-04-17 | 宁波远景汽车零部件有限公司 | Method for wrapping spare tire cover plate of automobile trunk |
| CN111016385B (en) * | 2019-12-09 | 2022-06-17 | 宁波远景汽车零部件有限公司 | Method for wrapping spare tire cover plate of automobile trunk |
| CN112606271A (en) * | 2020-12-14 | 2021-04-06 | 陕西天翌天线股份有限公司 | I-beam compression molding die and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110341210B (en) | 2020-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110341212A (en) | The compression molding die of thermoplastic composite component with I-shaped reinforcing rib | |
| CN110341210A (en) | The compression-moulding methods of thermoplastic composite component with I-shaped reinforcing rib | |
| CN110341209A (en) | A kind of compression-moulding methods of thermoplastic composite work shape reinforcement component | |
| CN110385861B (en) | Method for forming composite material I-beam | |
| CN104766934B (en) | A kind of preparation method of sandwich structure for lightweight battery case | |
| JP6603809B2 (en) | 3D nylon air duct molding flame-retardant bending beam molding process and mold | |
| CN105500730A (en) | High-precision forming mold and method for thickly-laid composite material boxes | |
| CN112454938A (en) | Forming method of carbon fiber honeycomb sandwich composite material member | |
| JP2020117215A (en) | Formed composite stringers | |
| CN110341211A (en) | A kind of compression molding die component of thermoplastic composite work shape reinforcement component | |
| CN108928012A (en) | A kind of process of efficient forming composite leaf spring | |
| CN117429089B (en) | Wing and integrated forming method and mold thereof | |
| AU2019244244A1 (en) | Method for producing fiber-reinforced resin | |
| CN206528102U (en) | A kind of T-shaped Material Stiffened Panel forming frock of composite | |
| CN101314259A (en) | Molding method for composite material satellite joint | |
| WO2021018002A1 (en) | Compression molding mold assembly and method for i-shaped reinforcement member of thermoplastic composite material | |
| CN106926479B (en) | A kind of more beam box section co-curing forming frocks of composite material | |
| CN107351429A (en) | A kind of method of the polymer matrix composites Forming Quality of raising Z Pin enhancings | |
| CN110370679B (en) | Automobile back door inner plate and preparation method thereof | |
| CN210283313U (en) | Compression molding die for thermoplastic composite material member with I-shaped reinforcing ribs | |
| CN111169037B (en) | Pressing die and method for molding resin-based composite material special-shaped piece | |
| CN111873448A (en) | Manufacturing method of composite material hub and product | |
| CN106976253A (en) | A kind of many beam box section co-curing moulding process of composite | |
| US11707897B2 (en) | Method for producing composite material, fiber base material, and shaping mold for fiber base material | |
| CN106738504A (en) | A kind of preparation method for strengthening the equal pressing plate of reinforcement sheet metal forming for composite Z pin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |