CN115609958A - Method for manufacturing non-drawable composite material special-shaped part - Google Patents
Method for manufacturing non-drawable composite material special-shaped part Download PDFInfo
- Publication number
- CN115609958A CN115609958A CN202211495129.5A CN202211495129A CN115609958A CN 115609958 A CN115609958 A CN 115609958A CN 202211495129 A CN202211495129 A CN 202211495129A CN 115609958 A CN115609958 A CN 115609958A
- Authority
- CN
- China
- Prior art keywords
- composite material
- mould
- core mould
- resin sand
- material special
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- 238000003892 spreading Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 10
- 230000037303 wrinkles Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
- B29C33/485—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling cores or mandrels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A technology for manufacturing the shaped composite material without die drawing includes such steps as machining the core mould with metallic part by resin sand, coating demoulding cloth on the surface of core mould, spreading presoaking material, heating while pressurizing, solidifying, breaking and taking out the core mould. Its advantages are high size precision, high quality of internal and external surfaces, no residual substance in product, simple process and suitability for making various parts made of composite material.
Description
Technical Field
The invention relates to a production process of a composite material product, in particular to a manufacturing method of a non-drawable composite material special-shaped piece.
Background
The modern composite material has the characteristics of good processability, light weight, high strength and the like, and is widely applied to the fields of aviation, aerospace, automobiles, sports goods and the like. The composite material part needs to ensure that the mounting surface and the inner and outer surfaces have higher quality so as to meet the requirements of assembly and use. For special-shaped composite material parts, such as mineral water bottle shapes, demoulding can not be carried out by adopting a common mould during manufacturing. The prior general method adopts a method of matching a soluble core mould with a metal female mould or a vacuum barrel bag to solve the demoulding problem. The former has the disadvantages that the soluble core mold powder is easy to permeate into the blank to influence the internal quality of the composite material, and the temperature use is limited. The latter has the disadvantages that the vacuum drum bag is easy to generate the pressurizing effect of bridging interference products in the pressurizing process, the internal quality of the products is influenced, and the problems of wrinkles, resin enrichment and the like of the internal profile of the products are caused.
Chinese patent No. CN101342787B discloses a method for forming a composite material special-shaped pipe, which uses a core mold made of polyethylene material with low softening temperature, and the forming method limits the temperature required for forming the composite material special-shaped pipe, and the temperature limitation requirement of the core mold also easily causes uncontrollable size of the composite material special-shaped pipe and affects the product quality.
In production, a manufacturing method of a non-drawable composite material special-shaped part is urgently needed to be developed, and the problem that the quality of a composite material special-shaped pipe fitting product is difficult to guarantee by the existing processing technology is solved.
Disclosure of Invention
The invention aims to provide a method for manufacturing a non-drawable composite material special-shaped piece.
The invention adopts the following technical scheme:
a method of manufacturing a non-drawable composite profile element, comprising the steps of:
The invention has the following advantages:
1. the size precision of the product is good, and the quality of the inner surface and the outer surface of the product is stable and excellent. The demolding cloth has good toughness, is not easy to break when the core mold is removed, can be completely taken down from the inner surface of a composite material workpiece, reduces the incidence rate of the defects that the inner molded surface of the product generates wrinkles and resin-rich residues, and effectively ensures the inner surface quality of the product.
2. Simple process and wide application range. The special-shaped die-drawing die is suitable for the requirements of special-shaped workpieces of various sizes and sizes which cannot be die-drawn composite materials, and can meet the requirements of various composite materials on curing temperature to the maximum extent. The resin sand core mold is reinforced by the metal support piece, so that the resin sand core mold has good rigidity and strength, the selected resin sand and the demolding cloth can resist the temperature exceeding 250 ℃, and the temperature application range is wide.
Drawings
Fig. 1 is a schematic view of a composite profile.
Fig. 2 is a schematic view of the combined structure of the composite profile and the core mold.
In the figure: the composite material special-shaped part comprises a composite material special-shaped part 1, a metal supporting part 2, a resin sand core mold body 3, demolding cloth 4 and a composite material prepreg 5.
Detailed Description
Example 1
As shown in fig. 1 to 2, in one embodiment of the present invention, a method for manufacturing a non-drawable composite profile includes the following steps:
The invention is not limited to the specific steps of the processing method, and equivalent changes of other similar methods fall into the protection scope of the invention.
Claims (1)
1. A method of manufacturing a non-drawable composite profile element, comprising the steps of:
step 1, core mould preparation: according to the size of an inner cavity of the composite material special-shaped part, a resin sand mould is manufactured by adopting a metal part support, and a layer of demoulding cloth is coated on the surface of a mould body of the resin sand mould;
step 2, prepreg paving: laying a composite material prepreg on the surface of the core mould according to the designed layers;
step 3, curing: paving a porous isolating membrane and a vacuum bag membrane, vacuumizing, heating and curing, wherein the curing temperature is 200 ℃;
step 4, demolding: the core mould is broken into small blocks by adopting an impact or knocking method and then taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211495129.5A CN115609958A (en) | 2022-11-26 | 2022-11-26 | Method for manufacturing non-drawable composite material special-shaped part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211495129.5A CN115609958A (en) | 2022-11-26 | 2022-11-26 | Method for manufacturing non-drawable composite material special-shaped part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115609958A true CN115609958A (en) | 2023-01-17 |
Family
ID=84878712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211495129.5A Pending CN115609958A (en) | 2022-11-26 | 2022-11-26 | Method for manufacturing non-drawable composite material special-shaped part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115609958A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010064436A (en) * | 2008-09-12 | 2010-03-25 | Bridgestone Corp | Polyurethane foam molded product and method of manufacturing the same |
| CN108032529A (en) * | 2017-11-08 | 2018-05-15 | 江西洪都航空工业集团有限责任公司 | A kind of thermoplasticity answers material molding component core preparation method |
| CN109849371A (en) * | 2019-03-27 | 2019-06-07 | 成都联科航空技术有限公司 | The variable cross-section hollow structure composite material parts forming method of high-precision inner surface |
| CN210211193U (en) * | 2019-06-24 | 2020-03-31 | 浙江中水仪表有限公司 | Water meter shell forming die convenient to die sinking is got piece |
| CN111716761A (en) * | 2020-07-03 | 2020-09-29 | 零八一电子集团四川天源机械有限公司 | Special-shaped curved surface aramid fiber paper honeycomb simple pre-setting die and manufacturing method thereof |
| CN111842831A (en) * | 2020-08-18 | 2020-10-30 | 盘星新型合金材料(常州)有限公司 | Preparation device of amorphous alloy pipe |
| CN113547762A (en) * | 2021-07-27 | 2021-10-26 | 宁波曙翔新材料股份有限公司 | Method for manufacturing air inlet channel by using fragile layer die |
-
2022
- 2022-11-26 CN CN202211495129.5A patent/CN115609958A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010064436A (en) * | 2008-09-12 | 2010-03-25 | Bridgestone Corp | Polyurethane foam molded product and method of manufacturing the same |
| CN108032529A (en) * | 2017-11-08 | 2018-05-15 | 江西洪都航空工业集团有限责任公司 | A kind of thermoplasticity answers material molding component core preparation method |
| CN109849371A (en) * | 2019-03-27 | 2019-06-07 | 成都联科航空技术有限公司 | The variable cross-section hollow structure composite material parts forming method of high-precision inner surface |
| CN210211193U (en) * | 2019-06-24 | 2020-03-31 | 浙江中水仪表有限公司 | Water meter shell forming die convenient to die sinking is got piece |
| CN111716761A (en) * | 2020-07-03 | 2020-09-29 | 零八一电子集团四川天源机械有限公司 | Special-shaped curved surface aramid fiber paper honeycomb simple pre-setting die and manufacturing method thereof |
| CN111842831A (en) * | 2020-08-18 | 2020-10-30 | 盘星新型合金材料(常州)有限公司 | Preparation device of amorphous alloy pipe |
| CN113547762A (en) * | 2021-07-27 | 2021-10-26 | 宁波曙翔新材料股份有限公司 | Method for manufacturing air inlet channel by using fragile layer die |
Non-Patent Citations (1)
| Title |
|---|
| 曾超: "《普通高等教育十四五应用型本科规划教材 航空工程材料与成型技术基础》", 31 July 2021, 北京航空航天大学出版社, pages: 216 - 219 * |
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