CN103978699A - Carbon fiber tube part forming method - Google Patents
Carbon fiber tube part forming method Download PDFInfo
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- CN103978699A CN103978699A CN201410202351.0A CN201410202351A CN103978699A CN 103978699 A CN103978699 A CN 103978699A CN 201410202351 A CN201410202351 A CN 201410202351A CN 103978699 A CN103978699 A CN 103978699A
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- carbon fiber
- cast part
- precast body
- auxiliary material
- die
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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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
A carbon fiber tube part forming method is provided. The method includes: preparing and forming process thin-gauge skin in a forming die, paving a core die on the prepared process thin-gauge skin in sequence, paving a prefabricated part on the paved core die, putting the prefabricated part together with the paved core die into a lower die of the forming die after the paving of the prefabricated part is finished, drawing the paved core die out, putting a vacuum bag, an assistant material upper part and an assistant material lower part into the inner cavity of the prefabricated part, closing the upper die of the forming die, starting bag making, and vacuumizing so that the prefabricated part is in a vacuum sealing environment. The prefabricated part under pressure sticks closely to the inner wall of the upper die and the inner wall of the lower die of the forming die, cured and formed to obtain the carbon fiber tube part. The method effectively overcomes the problem that composite material tube parts are under uneven pressure during heating and pressure forming processes, thus effectively improving the boundary dimension precision of the carbon fiber part product and improving the inner quality of the product. A wood material or glass fiber reinforced plastic is adopted as the paved core die, thus facilitating mould release. The production efficiency is high and the manufacturing cost is low.
Description
Technical field
The present invention relates to manufacture technology of composite material field, relate in particular to a kind of carbon fiber cast part forming method.
Background technology
Carbon fiber pipe claims again carbon fibre pipe, also claims carbon pipe or carbon fibre tube, is to adopt carbon fibre composite pre-immersion adhesive to form through the pultrusion that is heating and curing (twine and scratch); Can be by adopting the mould of different model to produce various section bars, because having, intensity is high, the life-span is long, corrosion-resistant, the advantages such as quality is light, low-density, are widely used in kite, aerial model airplane, the plant equipment such as support, PC equipment rotating shaft, etching machine, medicine equipment, sports equipment for lamp.Yet in manufacture process, carbon fiber cast part is a kind of product of sealing size, be subject to the restriction of product structure and shape, moulding difficulty is large, in prior art, conventionally adopt silica gel moulding or air bag moulding, the technological deficiency of its existence is: in forming process, be unfavorable for that the gas carried secretly in composite preform or low-molecular material discharge, cause precast body pressurized in the extrusion forming process of heating inhomogeneous, and adopt silica gel to do core material and be unfavorable for the demoulding, and then causing carbon fiber cast part manufacturing cost high, production efficiency is low.
Summary of the invention
Technical problem solved by the invention is to provide a kind of carbon fiber cast part forming method, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of carbon fiber cast part forming method, first the technique covering of preparing moulding in shaping mould, and technique covering Thickness Ratio carbon fiber cast part product wall thickness 1 ~ 2mm, on the complete technique covering of preparation, paving core is set successively, on paving core, lay precast body simultaneously, after precast body has been laid, precast body and paving core are put into shaping mould counterdie simultaneously, extract again paving core out, then at precast body inner chamber, put into vacuum bag, first end of auxiliary material and second end of auxiliary material, be closed into pattern patrix, start bag, vacuumize, make precast body in vacuum seal environment, precast body after being under pressure, is close to moulding upper mould and shaping mould counterdie inwall curing molding obtains carbon fiber cast part.
In the present invention, described paving core is that wood materials or fiberglass are made.
In the present invention, described precast body is composite cast part precast body.
In the present invention, by precast body and paving core are put into shaping mould counterdie simultaneously, extract again paving core out, and put into vacuum bag at precast body inner chamber, after first end of auxiliary material and second end of auxiliary material, be closed into pattern patrix, start to vacuumize, make precast body in vacuum seal environment, even to guarantee precast body pressurized in the extrusion forming process of heating, the gas that is conducive to carry secretly in precast body or low-molecular material are discharged, precast body after being under pressure, is close to moulding upper mould and shaping mould counterdie inwall curing molding obtains carbon fiber cast part, then the carbon fiber cast part after solidifying is taken out in shaping mould, finally by vacuum bag, first end of auxiliary material and second end of auxiliary material take out from carbon fiber cast part inner chamber, so both effectively improve carbon fiber cast part product design dimensional accuracy, improved again interiors of products quality, adopt wood materials or fiberglass to do paving core simultaneously and be conducive to the demoulding, production efficiency is high, and low cost of manufacture.
A carbon fiber cast part shaped device, comprises shaping mould, paving core, precast body, vacuum bag, first end of auxiliary material and second end of auxiliary material; Wherein, shaping mould comprises moulding upper mould and shaping mould counterdie, and moulding upper mould and shaping mould counterdie be embedded structure, and paving core is arranged in shaping mould, on paving core, be equipped with precast body, precast body inner chamber is provided with vacuum bag, first end of auxiliary material and second end of auxiliary material.
In the present invention, described first end of auxiliary material and second end of auxiliary material are for being symmetrical arranged.
In the present invention, described first end of auxiliary material and second end of auxiliary material are air guide material, and air guide material is the combination of airfelt, barrier film, release cloth.Air guide material is all derived the air in vacuum bag by vacuumizing mode, makes each position pressurized of precast body even.
In the present invention, described vacuum bag is film, seals, and precast body is sealed in to curing molding under vacuum environment, is conducive to carbon fiber cast part formed product.
Beneficial effect: the present invention efficiently solves composite cast part inhomogeneous problem of pressurized in the extrusion forming process of heating, the gas that is conducive to carry secretly in precast body or low-molecular material are discharged, so both effectively improve carbon fiber cast part product design dimensional accuracy, improved again interiors of products quality; Adopt wood materials or fiberglass to do paving core simultaneously and be conducive to the demoulding, production efficiency is high, and low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention, paving core takes out pre-structure schematic diagram.
Fig. 2 is that in the embodiment of the present invention, paving core takes out rear structural representation.
The specific embodiment
Below by following specific embodiment, describe the present invention.
A kind of carbon fiber cast part shaped device referring to Fig. 1, Fig. 2, comprises moulding upper mould 1, shaping mould counterdie 2, paving core 3, precast body 4, vacuum bag 5, first end 6 of auxiliary material and second end 7 of auxiliary material; The concrete implementation step of carbon fiber cast part moulding is as follows:
1) first in shaping mould, prepare the technique covering of moulding, and technique covering Thickness Ratio carbon fiber cast part product wall thickness 1 ~ 2mm;
2) in step 1), prepare on complete technique covering paving core 3 be set,
3) paving precast body 4 on paving core 3;
4) precast body 4 and paving core 3 are pressed shown in Fig. 1, put into shaping mould counterdie 2 simultaneously;
5) extract paving core 3 out;
6) by precast body that Fig. 2 is shown in 4 inner chambers, put into vacuum bag 5, first end 6 of auxiliary material and second end 7 of auxiliary material;
7) be closed into pattern patrix 1;
8) start bag, vacuumize, make precast body 4 in vacuum tightness environment;
9) utilize autoclave and other pressurized equipments of heating to apply external pressure outside vacuum bag 5, make external pressure be passed to precast body 4 by first end 6 of auxiliary material and second end 7 of auxiliary material, precast body 4 after being subject to external pressure, is close to moulding upper mould 1 and counterdie 2 inwall curing moldings obtain carbon fiber cast part;
10) the carbon fiber cast part after solidifying in step 9) is taken out in shaping mould;
11) vacuum bag 5, first end 6 of auxiliary material and second end 7 of auxiliary material are extracted out from carbon fiber cast part inner chamber, i.e. carbon fiber cast part moulding completes.
The carbon fiber cast part of preparing by above-mentioned implementation step, intensity is high, the life-span is long, corrosion-resistant, and product design dimensional accuracy is high, steady quality, is widely used in kite, aerial model airplane, the plant equipment such as support, PC equipment rotating shaft, etching machine, medicine equipment, sports equipment for lamp; Simultaneously simple to operate, constant product quality, production efficiency is high, low cost of manufacture, the special narrow and small product of suitable for producing inner chamber.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof
.
Claims (9)
1. a carbon fiber cast part forming method, it is characterized in that, first the technique covering of preparing moulding in shaping mould, on the complete technique covering of preparation, paving core is set successively, on paving core, lay precast body simultaneously, after precast body has been laid, precast body and paving core are put into shaping mould counterdie simultaneously, extract again paving core out, then at precast body inner chamber, put into vacuum bag, first end of auxiliary material and second end of auxiliary material, be closed into pattern patrix, start bag, vacuumize, make precast body in vacuum seal environment, precast body after being under pressure, is close to moulding upper mould and shaping mould counterdie inwall curing molding obtains carbon fiber cast part.
2. a kind of carbon fiber cast part forming method according to claim 1, is characterized in that, described technique covering Thickness Ratio carbon fiber cast part product wall thickness 1 ~ 2mm.
3. a kind of carbon fiber cast part forming method according to claim 1, is characterized in that, described paving core is that wood materials or fiberglass are made.
4. a kind of carbon fiber cast part forming method according to claim 1, is characterized in that, described precast body is composite cast part precast body.
5. a carbon fiber cast part shaped device, comprises shaping mould, paving core, precast body, vacuum bag, first end of auxiliary material and second end of auxiliary material; It is characterized in that, shaping mould comprises moulding upper mould and shaping mould counterdie, and moulding upper mould and shaping mould counterdie be embedded structure, and paving core is arranged in shaping mould, on paving core, be equipped with precast body, precast body inner chamber is provided with vacuum bag, first end of auxiliary material and second end of auxiliary material.
6. a kind of carbon fiber cast part shaped device according to claim 5, is characterized in that, described first end of auxiliary material and second end of auxiliary material are for being symmetrical arranged.
7. a kind of carbon fiber cast part shaped device according to claim 5, is characterized in that, described first end of auxiliary material and second end of auxiliary material are air guide material.
8. a kind of carbon fiber cast part shaped device according to claim 7, is characterized in that, air guide material is the combination of airfelt, barrier film, release cloth.
9. a kind of carbon fiber cast part shaped device according to claim 5, is characterized in that, described vacuum bag is film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410202351.0A CN103978699A (en) | 2014-05-14 | 2014-05-14 | Carbon fiber tube part forming method |
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| CN201410202351.0A CN103978699A (en) | 2014-05-14 | 2014-05-14 | Carbon fiber tube part forming method |
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| CN103978699A true CN103978699A (en) | 2014-08-13 |
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| CN201410202351.0A Pending CN103978699A (en) | 2014-05-14 | 2014-05-14 | Carbon fiber tube part forming method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476779A (en) * | 2014-11-26 | 2015-04-01 | 江西洪都航空工业集团有限责任公司 | Solid foam sandwiched composite material pipe forming tool structure and application and machining method thereof |
| CN107662354A (en) * | 2016-07-27 | 2018-02-06 | 中国航发商用航空发动机有限责任公司 | Make the anti-process for creping of composite cylinder and device of high microsteping content |
| CN107972293A (en) * | 2016-10-21 | 2018-05-01 | 江靖斌 | A kind of carbon fiber product molding machine and method |
| CN109367078A (en) * | 2018-09-29 | 2019-02-22 | 西安飞机工业（集团）有限责任公司 | A kind of packaging method of the manufacture T-type Material Stiffened Panel of adhesive technology altogether |
| CN109454900A (en) * | 2018-10-27 | 2019-03-12 | 滁州市润琦碳纤维制品有限公司 | A kind of carbon fiber tubular member forming method |
| CN109723924A (en) * | 2018-10-16 | 2019-05-07 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | A kind of carbon fiber elbow and its manufacturing method for ship |
| CN111113950A (en) * | 2020-01-03 | 2020-05-08 | 嘉兴翔翌复合材料有限公司 | Bag pressing forming process of carbon fiber product |
| CN111823614A (en) * | 2020-07-14 | 2020-10-27 | 中车青岛四方机车车辆股份有限公司 | Forming method of composite material multi-cavity structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103273665A (en) * | 2013-06-14 | 2013-09-04 | 沈阳飞机工业（集团）有限公司 | Forming technology of square pipe part made of composite material |
| CN203888227U (en) * | 2014-05-14 | 2014-10-22 | 江西洪都航空工业集团有限责任公司 | Carbon fiber tube piece forming device |
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2014
- 2014-05-14 CN CN201410202351.0A patent/CN103978699A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103273665A (en) * | 2013-06-14 | 2013-09-04 | 沈阳飞机工业（集团）有限公司 | Forming technology of square pipe part made of composite material |
| CN203888227U (en) * | 2014-05-14 | 2014-10-22 | 江西洪都航空工业集团有限责任公司 | Carbon fiber tube piece forming device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476779A (en) * | 2014-11-26 | 2015-04-01 | 江西洪都航空工业集团有限责任公司 | Solid foam sandwiched composite material pipe forming tool structure and application and machining method thereof |
| CN107662354A (en) * | 2016-07-27 | 2018-02-06 | 中国航发商用航空发动机有限责任公司 | Make the anti-process for creping of composite cylinder and device of high microsteping content |
| CN107662354B (en) * | 2016-07-27 | 2020-01-07 | 中国航发商用航空发动机有限责任公司 | Method and apparatus for making high fiber content composite material cylinder anti-wrinkling |
| CN107972293A (en) * | 2016-10-21 | 2018-05-01 | 江靖斌 | A kind of carbon fiber product molding machine and method |
| CN109367078A (en) * | 2018-09-29 | 2019-02-22 | 西安飞机工业（集团）有限责任公司 | A kind of packaging method of the manufacture T-type Material Stiffened Panel of adhesive technology altogether |
| CN109723924A (en) * | 2018-10-16 | 2019-05-07 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | A kind of carbon fiber elbow and its manufacturing method for ship |
| CN109723924B (en) * | 2018-10-16 | 2022-03-15 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | Carbon fiber elbow for ship and manufacturing method thereof |
| CN109454900A (en) * | 2018-10-27 | 2019-03-12 | 滁州市润琦碳纤维制品有限公司 | A kind of carbon fiber tubular member forming method |
| CN111113950A (en) * | 2020-01-03 | 2020-05-08 | 嘉兴翔翌复合材料有限公司 | Bag pressing forming process of carbon fiber product |
| CN111823614A (en) * | 2020-07-14 | 2020-10-27 | 中车青岛四方机车车辆股份有限公司 | Forming method of composite material multi-cavity structure |
| CN111823614B (en) * | 2020-07-14 | 2022-03-29 | 中车青岛四方机车车辆股份有限公司 | Forming method of composite material multi-cavity structure |
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Application publication date: 20140813 |
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