CN108943548A - A kind of carbon fibre composite manufacturing process - Google Patents
A kind of carbon fibre composite manufacturing process Download PDFInfo
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- CN108943548A CN108943548A CN201811040915.XA CN201811040915A CN108943548A CN 108943548 A CN108943548 A CN 108943548A CN 201811040915 A CN201811040915 A CN 201811040915A CN 108943548 A CN108943548 A CN 108943548A
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- Prior art keywords
- carbon fibre
- fibre composite
- manufacturing process
- intermediate state
- state material
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The present invention provides a kind of carbon fibre composite manufacturing process, include the following steps: step 1: preparation intermediate state material, intermediate state material is the short carbon fiber sufficiently infiltrated by matrix resin；Step 2: metal die is used, is thrown after cavity surface nitrogen-hardening or chromium plating to mirror surface, heats and temperature control is at 150-170 DEG C；Step 3: weighing appropriate intermediate state material, put into die cavity after coreless induction furnace is preheated to 90-100 DEG C, be evenly distributed, then quickly molding, is opened after pressure maintaining, carbon fibre composite is made.Carbon fibre composite manufacturing process provided by the invention can prepare intermediate state material by two methods, can effectively solve special-shaped product one-pass molding problem, and shaping efficiency is high, be suitable for the large-scale molding manufacture of industrialization.
Description
Technical field
The present invention relates to technical field of composite materials more particularly to a kind of carbon fibre composite manufacturing process.
Background technique
Carbon fibre composite standard forming method includes the molding of prepreg vacuum hotpressing kettle, infusion molding, contact
Molding, main shaping characteristic are successively to be plated in fiber to form thermoplastic resin-impregnated fibers resolidification by vacuum/pressurized again, molding
Period is long.Newest HP-RTM technology is shorter with respect to molding cycle, first manufactures the preforming embryo of fiber, enters back into mold simultaneously
Resin is added, forces resin rapid impregnation fiber, and rapid shaping at high temperature under high pressure by clamping pressure, nonetheless, according to
It is old to need first to form preforming embryo (be equally time-consuming successively be plated in) and shape of product has certain limitations (the mainly plate of thin layer
Shell class formation), shaping efficiency is low, can not be suitable for the large-scale molding manufacture of industrialization.
In view of this, it is necessary to carbon fibre composite manufacturing process in the prior art be improved, on solving
State problem.
Summary of the invention
It is an object of the invention to disclose a kind of carbon fibre composite manufacturing process, can be prepared by two methods
Intermediate state material, can effectively solve special-shaped product one-pass molding problem, and shaping efficiency is high, be suitable for industrialization on a large scale at
Type manufacture.
To achieve the above object, the present invention provides a kind of carbon fibre composite manufacturing process, include the following steps:
Step 1: preparation intermediate state material, intermediate state material is the short carbon fiber sufficiently infiltrated by matrix resin；
Step 2: metal die is used, is thrown after cavity surface nitrogen-hardening or chromium plating to mirror surface, heats and temperature control is in 150-170
℃；
Step 3: weighing appropriate intermediate state material, put into die cavity after coreless induction furnace is preheated to 90-100 DEG C, be evenly distributed, then
Quickly molding, is opened after pressure maintaining, and carbon fibre composite is made.
In some embodiments, intermediate state material the preparation method is as follows: chopped carbon fiber precursor, to short carbon fiber table
Surface treatment is modified, is put into kneading machine, then add coupling agent, matrix resin, function additive, and mixing rubbing uniformly, makes short carbon fiber
Dimension is sufficiently infiltrated by matrix resin, is packaged into freezer preservation.
In some embodiments, intermediate state material preparation method is as follows: carbon fibre precursor is used, to carbon fibre precursor table
Surface treatment is modified, is put into starching machine, then add coupling agent, matrix resin, function additive, dry by microwave after continuous infiltration
It is chopped again after dry furnace drying to a certain extent, is packaged into freezer preservation.
In some embodiments, described matrix resin is in epoxy resin or polyurethane resin or vinyl ester resin
One or more, the function additive are initiator or promotor or mould release or resisting phase separation agent or antioxidant or toughening
One or more of agent.
In some embodiments, described to be heated to be heat-conducting oil heating or electrical bar heating.
In some embodiments, the dwell time is determined by product thickness and relationship is 20s/mm.
In some embodiments, die shear side thickness control is within 0.03mm.
Compared with prior art, the beneficial effects of the present invention are: carbon fibre composite manufacturing process provided by the invention,
Intermediate state material can be prepared by two methods, can effectively solve special-shaped product one-pass molding problem, and shaping efficiency is high, be applicable in
In the large-scale molding manufacture of industrialization.
Specific embodiment
Below with reference to each embodiment, the present invention is described in detail, but it should be stated that, these embodiments are simultaneously
Non- limitation of the present invention, those of ordinary skill in the art are according to these embodiments in made function, method or structure
Equivalent transformation or substitution, all belong to the scope of protection of the present invention within.
Embodiment one:
Present embodiment discloses a kind of carbon fibre composite manufacturing process, include the following steps:
Step 1: preparation intermediate state material, intermediate state material is the short carbon fiber sufficiently infiltrated by matrix resin；
Step 2: using metal die, throws after cavity surface nitrogen-hardening or chromium plating to mirror surface, heats and temperature control is at 160 DEG C, mould
Chamber surface temperature difference is no more than 5 DEG C；
Step 3: weighing appropriate intermediate state material, puts into die cavity after coreless induction furnace is preheated to 95 DEG C, is evenly distributed, then quickly
Molding, is opened after pressure maintaining, and carbon fibre composite is made.
Intermediate state material the preparation method is as follows: chopped carbon fiber precursor, short carbon fiber is surface-treated and is modified, is put into and rubs
In stranding machine, then coupling agent, matrix resin, function additive are added, mixing rubbing uniformly, soaks short carbon fiber sufficiently by matrix resin
Profit is packaged into freezer preservation.
Described matrix resin be epoxy resin or one or more of polyurethane resin or vinyl ester resin, it is described
Function additive is initiator or promotor or mould release or resisting phase separation agent or one of antioxidant or toughener or more
Kind.
It is described to be heated to be heat-conducting oil heating.Dwell time is determined by product thickness and relationship is 20s/mm.The mold is cut
Trimming thickness control is in 0.02mm.
Embodiment two:
Present embodiment discloses a kind of carbon fibre composite manufacturing process, include the following steps:
Step 1: preparation intermediate state material, intermediate state material is the short carbon fiber sufficiently infiltrated by matrix resin；
Step 2: using metal die, throws after cavity surface nitrogen-hardening or chromium plating to mirror surface, heats and temperature control is at 165 DEG C, mould
Chamber surface temperature difference is no more than 5 DEG C；
Step 3: weighing appropriate intermediate state material, puts into die cavity after coreless induction furnace is preheated to 98 DEG C, is evenly distributed, then quickly
Molding, is opened after pressure maintaining, and carbon fibre composite is made.
Intermediate state material preparation method is as follows: using carbon fibre precursor, is surface-treated and is modified to carbon fibre precursor, be put into
In pulp grinder, then coupling agent, matrix resin, function additive are added, it is dry to a certain extent by microwave drier after continuous infiltration
It is chopped again afterwards, is packaged into freezer preservation.
Described matrix resin be epoxy resin or one or more of polyurethane resin or vinyl ester resin, it is described
Function additive is initiator or promotor or mould release or resisting phase separation agent or one of antioxidant or toughener or more
Kind.
It is described to be heated to be electrical bar heating.Dwell time is determined by product thickness and relationship is 20s/mm.
Die shear side thickness control is in 0.01mm.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of carbon fibre composite manufacturing process, which comprises the steps of:
Step 1: preparation intermediate state material, intermediate state material is the short carbon fiber sufficiently infiltrated by matrix resin；
Step 2: metal die is used, is thrown after cavity surface nitrogen-hardening or chromium plating to mirror surface, heats and temperature control is in 150-170
℃；
Step 3: weighing appropriate intermediate state material, put into die cavity after coreless induction furnace is preheated to 90-100 DEG C, be evenly distributed, then
Quickly molding, is opened after pressure maintaining, and carbon fibre composite is made.
2. carbon fibre composite manufacturing process according to claim 1, which is characterized in that the preparation side of intermediate state material
Method is as follows: chopped carbon fiber precursor, is surface-treated and is modified to short carbon fiber, is put into kneading machine, then add coupling agent, matrix tree
Rouge, function additive, mixing rubbing uniformly, infiltrate short carbon fiber sufficiently by matrix resin, are packaged into freezer preservation.
3. carbon fibre composite manufacturing process according to claim 1, which is characterized in that intermediate state material preparation method
It is as follows: to use carbon fibre precursor, carbon fibre precursor is surface-treated and is modified, is put into starching machine, then add coupling agent, matrix tree
Rouge, function additive are chopped after microwave drier is dry to a certain extent again after continuous infiltration, are packaged into freezer preservation.
4. carbon fibre composite manufacturing process according to claim 2 or 3, which is characterized in that described matrix resin is
Epoxy resin or one or more of polyurethane resin or vinyl ester resin, the function additive are initiator or promotion
Agent or mould release or resisting phase separation agent or one or more of antioxidant or toughener.
5. carbon fibre composite manufacturing process according to claim 1, which is characterized in that the conduction oil that is heated to be adds
Heat or electrical bar heating.
6. carbon fibre composite manufacturing process according to claim 1, which is characterized in that the dwell time is by product thickness
It determines and relationship is 20s/mm.
7. carbon fibre composite manufacturing process according to claim 1, which is characterized in that die shear side thickness
Control is within 0.03mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811040915.XA CN108943548A (en) | 2018-09-07 | 2018-09-07 | A kind of carbon fibre composite manufacturing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811040915.XA CN108943548A (en) | 2018-09-07 | 2018-09-07 | A kind of carbon fibre composite manufacturing process |
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| CN108943548A true CN108943548A (en) | 2018-12-07 |
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| JP2002184916A (en) * | 2000-12-15 | 2002-06-28 | Kitagawa Ind Co Ltd | Multifunctional sheet and manufacturing method therefor |
| CN103467757A (en) * | 2013-09-30 | 2013-12-25 | 金发科技股份有限公司 | Fiber-reinforced thermoplastic composite and preparation method thereof |
| CN105881801A (en) * | 2016-05-06 | 2016-08-24 | 天津鑫诺通树脂制品技术开发有限公司 | Production technology of well lid |
| CN106246774A (en) * | 2016-07-27 | 2016-12-21 | 广西驰胜农业科技有限公司 | A kind of carbon fibre resin base frication material and preparation method thereof |
| CN106751761A (en) * | 2016-12-02 | 2017-05-31 | 株洲时代新材料科技股份有限公司 | High rigidity high glaze carbon fiber reinforced polyamide composite material and preparation method thereof |
| CN107187078A (en) * | 2017-06-28 | 2017-09-22 | 江苏兆鋆新材料股份有限公司 | A kind of quick die press technology for forming of carbon fiber prepreg |
-
2018
- 2018-09-07 CN CN201811040915.XA patent/CN108943548A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002184916A (en) * | 2000-12-15 | 2002-06-28 | Kitagawa Ind Co Ltd | Multifunctional sheet and manufacturing method therefor |
| CN103467757A (en) * | 2013-09-30 | 2013-12-25 | 金发科技股份有限公司 | Fiber-reinforced thermoplastic composite and preparation method thereof |
| CN105881801A (en) * | 2016-05-06 | 2016-08-24 | 天津鑫诺通树脂制品技术开发有限公司 | Production technology of well lid |
| CN106246774A (en) * | 2016-07-27 | 2016-12-21 | 广西驰胜农业科技有限公司 | A kind of carbon fibre resin base frication material and preparation method thereof |
| CN106751761A (en) * | 2016-12-02 | 2017-05-31 | 株洲时代新材料科技股份有限公司 | High rigidity high glaze carbon fiber reinforced polyamide composite material and preparation method thereof |
| CN107187078A (en) * | 2017-06-28 | 2017-09-22 | 江苏兆鋆新材料股份有限公司 | A kind of quick die press technology for forming of carbon fiber prepreg |
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Application publication date: 20181207 |
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