CN108638530A - One-step method prepares sandwich sandwich structure composite material injection molding apparatus and method - Google Patents
One-step method prepares sandwich sandwich structure composite material injection molding apparatus and method Download PDFInfo
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- CN108638530A CN108638530A CN201810333334.9A CN201810333334A CN108638530A CN 108638530 A CN108638530 A CN 108638530A CN 201810333334 A CN201810333334 A CN 201810333334A CN 108638530 A CN108638530 A CN 108638530A
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- core material
- sandwich
- composite material
- injection molding
- structure composite
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
- B29B11/16—Making preforms characterised by structure or composition comprising fillers or reinforcement
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14598—Coating tubular articles
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
- B29C2045/0058—Shaping removing material
-
- 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
- B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
-
- 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
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
Abstract
A kind of one-step method of present invention offer prepares sandwich sandwich structure composite material injection molding apparatus, it be used to process core material, including feeding equipment, fibrage machine, injection mold, draft gear and cutter device, fibrage machine is annular, and core material passes through fibrage machine；It is provided with tube on the fibrage machine, unidirectional fibre is provided in tube, one end of unidirectional fibre is abutted by profiled sheeting with core surfaces, core material passes through the channel in injection mold, and feeding equipment, fibrage machine, injection mold, draft gear and cutter device are set gradually along core material length direction.The present invention also provides a kind of one-step method to prepare sandwich sandwich structure composite material injection molding forming method, and core material passes through feeding equipment, fibrage machine, injection mold, draft gear and cutter device, becomes sandwich sandwich structure composite material successively.The fibre pipe of the present invention is using fibrage clockwise and anticlockwise, and there is no interweaving, fibrous mechanical property loses.
Description
Technical field
The present invention relates to a kind of method of processing sandwich sandwich structure composite material, specially a kind of one-step method prepares three
Mingzhi's sandwich structure composite material injection molding apparatus and method.
Background technology
Sandwich sandwich structure composite material is covering up and down (such as carbon fiber layer plywood, the glass by high intensity high rigidity
Fiber parameter, aramid fiber laminate, basalt fibre laminate etc.) and excellent in mechanical performance core material (such as foam, bee
Nest, cork wood, PP etc.) design be composed, it both have excellent bending property, shock resistance, fatigue performance and vibration damping
Performance, but with light weight, it is corrosion-resistant many advantages, such as, be widely used in aerospace, communications and transportation, the energy, building,
The various fields such as sports equipment are one of current with fastest developing speed, most widely used high-performance composite materials.
Currently, in the preparation process of sandwich sandwich structure composite material, generally using hand paste technique, mould pressing process or
Resin transfer molding (RTM) process (RTM), these techniques, which exist, directly unidirectional fiber bundle to be utilized (to need first to process upper and lower illiteracy
Skin), the problems such as growing partially there are the production cycle, be unable to continuous production, to make being produced into for sandwich structural composite material
This is high.
Therefore, it is necessary to be improved to the prior art.
Invention content
The technical problem to be solved in the present invention is to provide a kind of efficient one-step method to prepare sandwich sandwich structure composite wood
Expect injection molding apparatus and method.
In order to solve the above technical problems, a kind of one-step method of present invention offer prepares the injection molding of sandwich sandwich structure composite material
Molding machine be used to process core material, including feeding equipment, fibrage machine, injection mold, draft gear and cutter device；
The fibrage machine is annular, and core material passes through fibrage machine；It is provided with tube, yarn on the fibrage machine
It is provided with unidirectional fibre in cylinder, one end of unidirectional fibre is abutted by profiled sheeting with core surfaces；
The core material passes through the channel in injection mold；
The feeding equipment, fibrage machine, injection mold, draft gear and cutter device along core material length direction successively
Setting.
As the improvement for preparing sandwich sandwich structure composite material injection molding apparatus to one-step method of the present invention：The fibre
It includes two circular knitting machines disposed in parallel to tie up braider, and core material passes through the center of two circular knitting machines, two rings
It is all circumferential on shape braider to be evenly arranged at least two tubes.
It is further improved as sandwich sandwich structure composite material injection molding apparatus is prepared to one-step method of the present invention：
The injection mold includes interconnected pre-forming area, heated cure zone and cooling zone, pre-forming area, heated cure zone and cold
But area is set gradually along core material length direction.
It is further improved as sandwich sandwich structure composite material injection molding apparatus is prepared to one-step method of the present invention：
The pre-forming area is connected with resin injection moulding apparatus.
It is further improved as sandwich sandwich structure composite material injection molding apparatus is prepared to one-step method of the present invention：
The resin injection moulding apparatus includes two containing different resins injection molding tanks, two injection molding tanks connected by pipeline after with it is preforming
Channel connection in area.
The present invention also provides a kind of one-step method to prepare sandwich sandwich structure composite material injection molding forming method, including following
Step：
1), core material one end is placed on feeding equipment, core material moves under the drive of feeding equipment, when core material pass through at
When template, start two circular knitting machines of fibrage machine, two circular knitting machines rotate in opposite directions, and two annulars are compiled
Unidirectional fibre in the tube of loom covers core surfaces by profiled sheeting helical form, and the unidirectional fibre of core surfaces, which is formed, to be compiled
Knit pipe；
2) and then outer surface is covered with the core material of woven tube by pre-forming area, is noted two by resin injection moulding apparatus
Resin in modeling tank is mixed into two-component resin and is molded into pre-forming area, the woven tubes of core surfaces be mixed after two-component
Resin fully infiltrates；
3) core material with woven tube is melted after two-component resin infiltration woven tube by heated cure zone after, then infiltrating
Melt solidification；
4) the woven tube composite material and then after melting and solidification is cooled and shaped in cooling zone, covering is formed, with core material shape
It is into a single integrated structure, become foam sandwich composite material；
5) and then by foam sandwich composite material pass through cutter device, by cutter device excision forming.
One-step method of the present invention prepares sandwich sandwich structure composite material injection molding apparatus and the technical advantage of method is：
(1) original traditional foam sandwich structural composite material is generally used two-step process production, i.e., first by harness
It is prepared into composite material skin, then by covering and core material curing molding.
The present invention directly will use unidirectional fiber bundle as skin, foam as core material, using injection molding type tension and compression at
Type technique can produce sandwich sandwich structure composite material with one-step method continous way, can realize the continuous metaplasia of the high-volume of product
Production processing, simplifies technological process, can effectively reduce waste of raw materials, greatly shorten life cycle of the product, effectively reduce
Production cost.
(2) this moulding process according to core material structure shape, can prepare the interlayer structure of different cross section shape (such as round, square
Shape, triangle, polygon etc.).
(3) this moulding process can be used alone carbon fiber, glass fibre, aramid fiber, basalt fibre, also can will be above-mentioned
Fiber is applied in combination as needed, can produce multiple product as needed, the extreme enrichment kind and performance of product.
(4) present invention is molded using Shooting Technique compared to common fibrous material immersion slot infiltration, and effect of impregnation is wanted
It is good very much.And thermosetting resin is only suitable for using immersion slot infiltration, the present invention can also be suitble to thermoplastic resin (thermosetting property tree
The glass transition temperature of fat is usually 100~200 DEG C, and generally above 250 DEG C of the melting temperature of thermoplastic resin.And it notes
Modeling moulding process is capable of providing higher resin heating melting temperature).
(5) for fibre pipe of the invention using fibrage clockwise and anticlockwise, there is no interweave.The spy of this structure
Point is that fiber does not interweave, and friction is few, and fibrous mechanical property loss is few, and in addition speed of production is faster 30- than conventional interlacement weave
40%.
Description of the drawings
The specific implementation mode of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram that one-step method of the present invention prepares sandwich sandwich structure composite material injection molding apparatus；
Fig. 2 is the structural schematic diagram that fibrage machine 4 and profiled sheeting 6 are used cooperatively in Fig. 1；
Fig. 3 is the structural schematic diagram that the circular knitting machine 41 of fibrage machine 4 is used cooperatively with template 6 in Fig. 1；
Fig. 4 is the structural schematic diagram that a circular knitting machine 41 winds unidirectional fibre 5 on core material 1；
Fig. 5 is the structural schematic diagram that two circular knitting machines 41 wind unidirectional fibre 5 on core material 1.
Specific implementation mode
With reference to specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in
This.
Embodiment 1, one-step method prepare sandwich sandwich structure composite material injection molding apparatus, be used to process core material 1
(use foam core material) as shown in Figs. 1-5, including feeding equipment 2, fibrage machine 4, injection mold 8, draft gear 12 and cuts
Cut device 13.Feeding equipment 2, fibrage machine 4, injection mold 8, draft gear 12 and cutter device 13 are on core material 1 from a left side
It is set gradually to the right side.
In 1 upper and lower ends of core material, respectively one feeding equipment 2 of setting, feeding equipment 2 can drive core material 1 to move.
Fibrage machine 4 includes two circular knitting machines 41 disposed in parallel, and two circular knitting machines 41 all carry motor,
It can rotate in opposite directions.Core material 1 passes through the center of two circular knitting machines 41 of fibrage machine 4, fibrage
It is circumferentially provided with several tubes 3 of identical quantity on two circular knitting machines 41 of machine 4, is placed in each tube 3 unidirectional
One end of fiber 5, unidirectional fibre 5 passes through profiled sheeting 6 (profiled sheeting 6 is annular, and core material 1 passes through 6 center of profiled sheeting) and core
1 surface of material abuts fitting, and then unidirectional fibre 5 is connect with draft gear 12 again across injection mold 8.Two circular knitting machines 41
The line of unidirectional fibre 5 and profiled sheeting 6 on upper corresponding tube 3 is cross one another, as shown in Fig. 2, can make in this way
Unidirectional fibre 5 is wrapped on core material 1 more uniformly.
Core material 1 passes through injection mold 8, includes the pre-forming area 9 being interconnected, 10 and of heated cure zone in injection mold 8
Cooling zone 11, pre-forming area 9, heated cure zone 10 and cooling zone 11 are set gradually from left to right on core material 1.Injection mold 8
It is connected with resin injection moulding apparatus 14, resin injection moulding apparatus 14 includes two injection moldings respectively containing polyurethane resin and epoxy resin
Tank 7, resin injection moulding apparatus 14 are added to the (note of injection mold 8 after capable of mixing two-component resin (such as polyurethane resin, epoxy resin)
9 part of pre-forming area of mould 8) the inside.Mixed two-component resin is worked on core material 1 by injection mold 8 again.
Two-component resin generally has two kinds of ingredients of A, B (to use the polyurethane resin or epoxy resin of two-component, can also make
With other desired resin) according to the ratio formula of resin producer offer, solidification, polyurethane resin could be reacted by combining
Or the addition of epoxy resin can in real time be adjusted according to pultrusion speed, and the service efficiency of resin has been effectively ensured, has reduced wave
Take.In addition, polyurethane resin or epoxy resin is using injection molding machine injection molding infiltration unidirectional fibre 5, there is larger note in injection molding when
Power is moulded, can guarantee that resin is preferably infiltrated with fiber.It is molded compared to common fibrous material immersion slot using Shooting Technique
Infiltration, effect of impregnation are well very much.And thermosetting resin is only suitable for using immersion slot infiltration, the present invention can also be suitble to thermoplastic
(glass transition temperature of thermosetting resin is usually 100~200 DEG C to property resin, and the melting temperature of thermoplastic resin is general
Above 250 DEG C.And injection molding process is capable of providing higher resin heating melting temperature).
In about 1 both sides of core material, one draft gear 12, two draft gears 12 and about 1 two surface of core material are respectively set
(unidirectional fibre 5) abuts, and draft gear 12 can drive unidirectional fibre 5 and core material 1 to move.
In each one cutter device 13 of setting in about 1 both sides of core material, the cooperation of two cutter devices 13 can to core material 1 or at
Sandwich sandwich structure composite material after type is accordingly cut.
One-step method of the present invention prepares sandwich sandwich structure composite material injection molding forming method：
First by core material 1 be processed into required size (core material 1 is generally pylindrical, but can also use vertical bar shape or its
His shape),
Between 1 one end of core material is placed on two feeding equipments 2, core material 1 is from left to right opened under the drive of feeding equipment 2
Begin to move, when core material 1 is by profiled sheeting 6, starts two circular knitting machines 41 of fibrage machine 4, two circular knitting machines
41 rotate in opposite directions, and the unidirectional fibre 5 in the tube 3 of two circular knitting machines 41 covers 1 table of core material by profiled sheeting 6
Face, fibrage machine 4 rotates in a circumferential direction in this process, and (two 41 opposite directions of circular knitting machine rotate：One circular knitting machine
41 rotate clockwise, another circular knitting machine 41 rotates counterclockwise), fiber clockwise and anticlockwise, will there is no interweaving
Unidirectional fibre 5 is wound in woven tube.The characteristics of this structure is that fiber does not interweave, and friction is few, and fibrous mechanical property loss is few, separately
Outer production speed weaves fast 30-40% than conventional.In addition, fibrage machine 4 can also weave fine according to product development needs
Tie up the conventional braiding structure being interweaved.
Unidirectional fibre 5 after being wrapped in 1 surface of core material there is some tension unidirectional fibre 5 and 1 outer surface of core material may be implemented
It is in close contact, and ensures not having the generation of relative movement, woven tube is fully bonded with core material 1, so that it may to produce non-interwoven
Sandwich structure.Unidirectional fibre 5 is first wound in the woven tube of circular tube shaped by fibrage machine 4, then is pasted by 6 boundling of profiled sheeting
Together in 1 surface of core material.Existing device is in directly being woven and being wrapped in by glass fibre by existing fiberglass braided machine
On tube outer surface, the fiber of the woven tube knit out in this way be along axially be uniformly arranged (fiber grain trend be and volume
It is identical to knit length of tube direction), and fiber is interweaved, fibrous mechanical property loses larger, low production efficiency；And it is of the invention
The woven tube wound out removes the fiber grain trend that can weave production to be rotated around woven tube axis direction helical form, can be with
There is twisted effect, and fiber does not interweave, friction is few.Then outer surface is covered with the core material 1 of unidirectional fibre 5 (woven tube) by note
When mould 8, the two-component resin (polyurethane resin or epoxy resin) that two are molded in tank 7 by resin injection moulding apparatus 14 is molded
Into injection mold 8, the woven tube on 1 surface of core material is fully infiltrated in the pre-forming area of injection mold 89 by two-component resin, is connect
Melting and solidification (resin has begun to cure in heating zone) in heated cure zone 10, the pressure needed for resin solidification is by weaving
Pressure, mould inside, 1 appearance surface pressure of core material and four part of the injection pressure composition that structure own tension generates；Then resin
Curing molding, formation covering form integral structure with core material 1 and (carry the core material 1 of covering, i.e., in cooling zone 11 with woven tube
Sandwich structural composite material).
Then, to operation before the core material 1 with covering continues under the traction of draft gear 12, then according to required length
In 13 excision forming of cutter device.
The sandwich composite material that the present invention is prepared belongs to the sandwich composite material wrapped entirely, as core
Wrap up one layer of covering in 1 outside of material.
Finally, it should also be noted that it is listed above be only the present invention several specific embodiments.Obviously, this hair
Bright to be not limited to above example, acceptable there are many deformations.Those skilled in the art can be from present disclosure
All deformations for directly exporting or associating, are considered as protection scope of the present invention.
Claims (6)
1. one-step method prepares sandwich sandwich structure composite material injection molding apparatus, be used to process core material (1), feature exists
In：Including feeding equipment (2), fibrage machine (4), injection mold (8), draft gear (12) and cutter device (13)；
The fibrage machine (4) is annular, and core material (1) passes through fibrage machine (4)；It is arranged on the fibrage machine (4)
There is tube (3), unidirectional fibre (5) is provided in tube (3), one end of unidirectional fibre (5) passes through profiled sheeting (6) and core material (1)
Surface abuts；
The core material (1) passes through the channel in injection mold (8)；
The feeding equipment (2), fibrage machine (4), injection mold (8), draft gear (12) and cutter device (13) are along core
Material (1) length direction is set gradually.
2. one-step method according to claim 1 prepares sandwich sandwich structure composite material injection molding apparatus, feature
It is：The fibrage machine (4) includes two circular knitting machines (41) disposed in parallel, and core material (1) passes through two annulars to compile
The center of loom (41), it is all circumferential on two circular knitting machines (41) to be evenly arranged at least two tubes (3).
3. one-step method according to claim 2 prepares sandwich sandwich structure composite material injection molding apparatus, feature
It is：The injection mold (8) includes interconnected pre-forming area (9), heated cure zone (10) and cooling zone (11), in advance at
Type area (9), heated cure zone (10) and cooling zone (11) are set gradually along core material (1) length direction.
4. one-step method according to claim 3 prepares sandwich sandwich structure composite material injection molding apparatus, feature
It is：The pre-forming area (9) is connected with resin injection moulding apparatus (14).
5. one-step method according to claim 4 prepares sandwich sandwich structure composite material injection molding apparatus, feature
It is：The resin injection moulding apparatus (14) includes two injection molding tanks (7) containing different resins, and two injection molding tanks (7) pass through pipe
It is connected to the channel in pre-forming area (9) after road connection.
6. preparing sandwich sandwich structure composite material injection molding apparatus using one-step method according to any one of claims 1 to 5
One-step method prepare sandwich sandwich structure composite material injection molding forming method, which is characterized in that include the following steps：
1), core material (1) one end is placed on feeding equipment (2), core material (1) moves under the drive of feeding equipment (2), works as core
When material (1) passes through profiled sheeting (6), start two circular knitting machines (41) of fibrage machine (4), two circular knitting machines (41)
It rotates in opposite directions, the unidirectional fibre (5) in the tube (3) of two circular knitting machines (41) passes through profiled sheeting (6) helical form
Core material (1) surface is covered, the unidirectional fibre (5) on core material (1) surface forms woven tube；
2) and then outer surface is covered with the core material (1) of woven tube by pre-forming area (9), and passing through resin injection moulding apparatus (14) will
Resin in two injection molding tanks (7) is mixed into two-component resin and is molded into pre-forming area (9), the woven tube on core material (1) surface
Two-component resin after being mixed fully infiltrates；
3) core material (1) with woven tube is by heated cure zone (10) after, then infiltrating, after two-component resin infiltration woven tube
Melting and solidification；
4) the woven tube composite material and then after melting and solidification is cooled and shaped in cooling zone (11), covering is formed, with core material
(1) integral structure is formed, foam sandwich composite material is become；
5) and then by foam sandwich composite material pass through cutter device (13), by cutter device (13) excision forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333334.9A CN108638530B (en) | 2018-04-13 | 2018-04-13 | Injection molding device and method for preparing sandwich structure composite material by one-step method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333334.9A CN108638530B (en) | 2018-04-13 | 2018-04-13 | Injection molding device and method for preparing sandwich structure composite material by one-step method |
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| Publication Number | Publication Date |
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| CN108638530A true CN108638530A (en) | 2018-10-12 |
| CN108638530B CN108638530B (en) | 2020-03-06 |
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| CN201810333334.9A Active CN108638530B (en) | 2018-04-13 | 2018-04-13 | Injection molding device and method for preparing sandwich structure composite material by one-step method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109664525A (en) * | 2019-01-31 | 2019-04-23 | 山东柏远复合材料科技有限公司 | A kind of device and method producing the composite materials such as high performance pipe plate |
| CN114889155A (en) * | 2022-03-15 | 2022-08-12 | 云路复合材料(上海)有限公司 | Bending-torsion-resistant composite material beam local reinforcing composite forming method and production line |
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| CN102825879A (en) * | 2012-08-27 | 2012-12-19 | 华南理工大学 | Composite material with foam sandwich structure and preparation method of composite material |
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| JPH0550433A (en) * | 1991-08-23 | 1993-03-02 | Kobe Steel Ltd | Preparation of fiber-reinforced composite material |
| CN101307576A (en) * | 2008-05-15 | 2008-11-19 | 袁剑峰 | Aging-resistant high molecule strong rope manufacture method |
| CN102024517A (en) * | 2009-09-15 | 2011-04-20 | 江苏嘉泰科技材料股份公司 | Composite material core used for enhanced cable, preparation process thereof and enhanced cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109664525A (en) * | 2019-01-31 | 2019-04-23 | 山东柏远复合材料科技有限公司 | A kind of device and method producing the composite materials such as high performance pipe plate |
| CN109664525B (en) * | 2019-01-31 | 2023-11-14 | 山东柏远复合材料科技股份有限公司 | Equipment and method for producing high-performance composite materials such as pipe plates |
| CN114889155A (en) * | 2022-03-15 | 2022-08-12 | 云路复合材料(上海)有限公司 | Bending-torsion-resistant composite material beam local reinforcing composite forming method and production line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108638530B (en) | 2020-03-06 |
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