CN105666769A - One-step compression molding method for complex-molded part made of short carbon fiber sheet material - Google Patents
One-step compression molding method for complex-molded part made of short carbon fiber sheet material Download PDFInfo
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- CN105666769A CN105666769A CN201610068202.9A CN201610068202A CN105666769A CN 105666769 A CN105666769 A CN 105666769A CN 201610068202 A CN201610068202 A CN 201610068202A CN 105666769 A CN105666769 A CN 105666769A
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- Prior art keywords
- carbon fiber
- mould
- fine lamellar
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- design
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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
- 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
-
- 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
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a one-step compression molding method for a complex-molded part made of a short carbon fiber sheet material. The one-step compression molding method comprises the following steps: (1) measuring the three-dimensional size of a part to be machined, and designing the shape of a cavity of a mold discharging core by software; (2) designing a hollow structure and a reinforcing rib and hole structure which are matched with a protruded structure of the part to be machined in the cavity in the horizontal direction by the software; (3) designing a heating pipeline at a position, which is in contact with a material to be machined, of the cavity; (4) purposefully designing and manufacturing a mold with a bin according to design results of the step (1), the step (2) and the step (3) and features of fluffiness and separation of the material; and (5) calculating the size of the part according to the three-dimensional size of the part measured in the step (1). By the one-step compression molding method, the problems that isotropic properties cannot be realized by a carbon fiber fabric shape material, and a thermoplastic carbon fiber reinforcing material cannot fully guarantee exertion of performance of carbon fibers are solved.
Description
Technical field
The present invention relates to the short fine lamellar material complex model part by one-step compression-moulding methods of a kind of carbon fiber, belong to mould manufacture field.
Background technology
Traditional carbon fibres because of its material many using carbon fiber wire, unidirectional or multinomial woven cloth is as molded substrate, therefore the moulding process main difference number of plies is based on thermosettings such as hands paste, TRM, winding, lamination, common mold pressings, the product attribute of molding all shows as anisotropic, and the weak feature of shearing strength between layers greatly limits carbon fiber excellent properties. The utilization of current length thermoplastic carbon fiber material also gets more and more, but because of the shrinkage factor of thermoplastic own, the shortcomings such as yielding, fiber content is low limit carbon fiber equally and manufacture the possibility of high-modulus, high-precision product.
Summary of the invention
For the deficiency that prior art exists, the technical problem to be solved is, there is provided a kind of carbon fiber short fine lamellar material complex model part by one-step compression-moulding methods, solve the problem that traditional carbon fibres product shearing strength between layers is weak so that it is can be machined out by the mode identical with high-strength metal material when mould molding precision is not enough.
For solving above-mentioned technical problem, the present invention adopts the technical scheme that, the short fine lamellar material complex model part by one-step compression-moulding methods of a kind of carbon fiber, is made up of following steps:
(1) three-dimensional dimension of part to be processed is measured, and by the shape in software design depanning core material chamber;
(2) gone out by software design to design on material lumenal levels direction and the prominent hollow structure of respective outer side edges of part to be processed, reinforcement and pore structure;
(3) pipe line is added in the Position Design in material chamber with material to be processed;
(4) design result according to step (1), (2) and (3), bond material is fluffy, the feature of separation, and targeted design also produces the mould with feed bin;
(5) the part three-dimensional dimension measured according to step (1) calculates volume of part;
(6) volume of part calculated according to step (5) calculates the inventory of the short fine lamellar material of carbon fiber;
(7) mould core that step (4) designs and manufactures is heated under the heating adding pipe line;
(8) inventory calculated according to step (6), puts in the core rod of the mould that step (7) heats by short for the carbon fiber of equivalent fine lamellar material;
(9) keep the temperature after the heating of step (7) after feeding intake, upper and lower mould is brought together into 80%, is incubated 10 minutes;
(10) mould is warming up at a slow speed 100 degree, when being warming up to 100 degree, upper and lower mould 100% is closed up, continue to heat to 150 degree, and keep the pressure 30 minutes of upper and lower intermode;
(11) mould being warming up to 177 degree, after heat-insulation pressure keeping, product is deviate from die sinking;
(12) carry out holing on the product that step (11) is deviate from, the processing such as car silk.
Optimizing, the short fine lamellar material complex model part by one-step compression-moulding methods of above-mentioned carbon fiber, the short fine lamellar material of described carbon fiber is 6-50mm chopped carbon fiber epoxy thermoset.
Optimizing, the short fine lamellar material complex model part by one-step compression-moulding methods of above-mentioned carbon fiber, in described step (7), the heating-up temperature of mould core is 70 degree.
Optimizing, the short fine lamellar material complex model part by one-step compression-moulding methods of above-mentioned carbon fiber, in described step (11), the time of heat-insulation pressure keeping is 120 minutes.
The invention solves carbon fibre fabric shaped materials and cannot realize the problem of isotropic performance, solve the problem that thermoplasticity carbon fibre reinforcement cannot fully ensure that carbon fiber performance. Solve the problem that thermosets is difficult to molding for not uniform thickness, complex-curved and Mechanical Builds. The quality more light than various metals can realize the existing various advantages of metal material, can extensively substitute various high-modulus, high-precision metal material, surmount the excellent specific property that metal material does not possess simultaneously.
The present invention is with 6-50mm chopped carbon fiber epoxy thermoset, according to its material behavior, targeted design special construction mould, stone, matched moulds, pressurization, pressurize technique under design different temperatures curve, realize the critical isotropic high-performance complex model carbon fiber product of different category smoothly. Solve the problem that traditional carbon fibres product shearing strength between layers is weak so that it is can be machined out by the mode identical with high-strength metal material when mould molding precision is not enough. Simultaneously can unrestrictedly hole in the either direction of product, car silk etc. is processed. It is greatly expanded the range of application between carbon fiber and field.
Detailed description of the invention
Embodiment 1
The present invention is the short fine lamellar material complex model part by one-step compression-moulding methods of a kind of carbon fiber, is made up of following steps:
(1) three-dimensional dimension of part to be processed is measured, and by the shape in software design depanning core material chamber;
(2) gone out by software design to design on material lumenal levels direction and the prominent hollow structure of respective outer side edges of part to be processed, reinforcement and pore structure;
(3) pipe line is added in the Position Design in material chamber with material to be processed;
(4) design result according to step (1), (2) and (3), bond material is fluffy, the feature of separation, and targeted design also produces the mould with feed bin;
(5) the part three-dimensional dimension measured according to step (1) calculates volume of part;
(6) volume of part calculated according to step (5) calculates the inventory of the short fine lamellar material of carbon fiber;
(7) mould core that step (4) designs and manufactures is heated under the heating adding pipe line;
(8) inventory calculated according to step (6), puts in the core rod of the mould that step (7) heats by short for the carbon fiber of equivalent fine lamellar material;
(9) keep the temperature after the heating of step (7) after feeding intake, upper and lower mould is brought together into 80%, is incubated 10 minutes;
(10) mould is warming up at a slow speed 100 degree, when being warming up to 100 degree, upper and lower mould 100% is closed up, continue to heat to 150 degree, and keep the pressure 30 minutes of upper and lower intermode;
(11) mould being warming up to 177 degree, after heat-insulation pressure keeping, product is deviate from die sinking;
(12) carry out holing on the product that step (11) is deviate from, the processing such as car silk.
In above-mentioned processing method, the short fine lamellar material of described carbon fiber is 6mm chopped carbon fiber epoxy thermoset. In described step (7), the heating-up temperature of mould core is 70 degree. In described step (11), the time of heat-insulation pressure keeping is 120 minutes.
The invention solves carbon fibre fabric shaped materials and cannot realize the problem of isotropic performance, solve the problem that thermoplasticity carbon fibre reinforcement cannot fully ensure that carbon fiber performance. Solve the problem that thermosets is difficult to molding for not uniform thickness, complex-curved and Mechanical Builds. The quality more light than various metals can realize the existing various advantages of metal material, can extensively substitute various high-modulus, high-precision metal material, surmount the excellent specific property that metal material does not possess simultaneously.
The present invention is with 6-50mm chopped carbon fiber epoxy thermoset, according to its material behavior, targeted design special construction mould, stone, matched moulds, pressurization, pressurize technique under design different temperatures curve, realize the critical isotropic high-performance complex model carbon fiber product of different category smoothly. Solve the problem that traditional carbon fibres product shearing strength between layers is weak so that it is can be machined out by the mode identical with high-strength metal material when mould molding precision is not enough. Simultaneously can unrestrictedly hole in the either direction of product, car silk etc. is processed. It is greatly expanded the range of application between carbon fiber and field.
Embodiment 2
This embodiment and embodiment 1 are distinctive in that: the short fine lamellar material of described carbon fiber is 50mm chopped carbon fiber epoxy thermoset.
Embodiment 3
This embodiment and embodiment 1,2 are distinctive in that: the short fine lamellar material of described carbon fiber is 38mm carbon fiber epoxy thermosets.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above; those skilled in the art; in the essential scope of the present invention, change, remodeling, interpolation or the replacement made, all should belong to protection scope of the present invention.
Claims (4)
1. the short fine lamellar material complex model part by one-step compression-moulding methods of carbon fiber, it is characterised in that: it is made up of following steps:
(1) three-dimensional dimension of part to be processed is measured, and by the shape in software design depanning core material chamber;
(2) gone out by software design to design on material lumenal levels direction and the prominent hollow structure of respective outer side edges of part to be processed, reinforcement and pore structure;
(3) pipe line is added in the Position Design in material chamber with material to be processed;
(4) design result according to step (1), (2) and (3), bond material is fluffy, the feature of separation, and targeted design also produces the mould with feed bin;
(5) the part three-dimensional dimension measured according to step (1) calculates volume of part;
(6) volume of part calculated according to step (5) calculates the inventory of the short fine lamellar material of carbon fiber;
(7) mould core that step (4) designs and manufactures is heated under the heating adding pipe line;
(8) inventory calculated according to step (6), puts in the core rod of the mould that step (7) heats by short for the carbon fiber of equivalent fine lamellar material;
(9) keep the temperature after the heating of step (7) after feeding intake, upper and lower mould is brought together into 80%, is incubated 10 minutes;
(10) mould is warming up at a slow speed 100 degree, when being warming up to 100 degree, upper and lower mould 100% is closed up, continue to heat to 150 degree, and keep the pressure 30 minutes of upper and lower intermode;
(11) mould being warming up to 177 degree, after heat-insulation pressure keeping, product is deviate from die sinking;
(12) carry out holing on the product that step (11) is deviate from, the processing such as car silk.
2. the short fine lamellar material complex model part by one-step compression-moulding methods of carbon fiber according to claim 1, it is characterised in that: the short fine lamellar material of described carbon fiber is 6-50mm chopped carbon fiber epoxy thermoset.
3. the short fine lamellar material complex model part by one-step compression-moulding methods of carbon fiber according to claim 1, it is characterised in that: in described step (7), the heating-up temperature of mould core is 70 degree.
4. the short fine lamellar material complex model part by one-step compression-moulding methods of carbon fiber according to claim 1, it is characterised in that: in described step (11), the time of heat-insulation pressure keeping is 120 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610068202.9A CN105666769A (en) | 2016-02-01 | 2016-02-01 | One-step compression molding method for complex-molded part made of short carbon fiber sheet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610068202.9A CN105666769A (en) | 2016-02-01 | 2016-02-01 | One-step compression molding method for complex-molded part made of short carbon fiber sheet material |
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| CN105666769A true CN105666769A (en) | 2016-06-15 |
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| CN201610068202.9A Pending CN105666769A (en) | 2016-02-01 | 2016-02-01 | One-step compression molding method for complex-molded part made of short carbon fiber sheet material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927307A (en) * | 2018-12-27 | 2019-06-25 | 皓宇智能有限公司 | Composite structure and its preparation process with honeycomb reinforcing rib |
Citations (5)
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| CN101279492A (en) * | 2008-05-27 | 2008-10-08 | 梁瑞虎 | One-step full-automatic molding method for producing cup cover and cup cover forming machine thereof |
| CN101491944A (en) * | 2009-03-03 | 2009-07-29 | 大连宇星净水设备有限公司 | Method for producing filament reinforced thermoplastics pressure film shell |
| CN101920562A (en) * | 2010-08-02 | 2010-12-22 | 国营江北机械厂 | Clear dimension compression molding method for phenolic resin based complex profile product |
| CN103273662A (en) * | 2013-05-24 | 2013-09-04 | 航天材料及工艺研究所 | Preparation method of low heat expansion carbon fiber reinforced resin matrix composite material mold |
| CN104647697A (en) * | 2015-01-27 | 2015-05-27 | 苏州汇众模塑有限公司 | Digital design technology for injection mold |
-
2016
- 2016-02-01 CN CN201610068202.9A patent/CN105666769A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279492A (en) * | 2008-05-27 | 2008-10-08 | 梁瑞虎 | One-step full-automatic molding method for producing cup cover and cup cover forming machine thereof |
| CN101491944A (en) * | 2009-03-03 | 2009-07-29 | 大连宇星净水设备有限公司 | Method for producing filament reinforced thermoplastics pressure film shell |
| CN101920562A (en) * | 2010-08-02 | 2010-12-22 | 国营江北机械厂 | Clear dimension compression molding method for phenolic resin based complex profile product |
| CN103273662A (en) * | 2013-05-24 | 2013-09-04 | 航天材料及工艺研究所 | Preparation method of low heat expansion carbon fiber reinforced resin matrix composite material mold |
| CN104647697A (en) * | 2015-01-27 | 2015-05-27 | 苏州汇众模塑有限公司 | Digital design technology for injection mold |
Non-Patent Citations (3)
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| 唐磊，杜仕国: "《轻量化材料技术》", 31 January 2014, 国防工业出版社 * |
| 张广成，史学涛: "《塑料成型加工技术》", 31 January 2013, 西北工业大学出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927307A (en) * | 2018-12-27 | 2019-06-25 | 皓宇智能有限公司 | Composite structure and its preparation process with honeycomb reinforcing rib |
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Application publication date: 20160615 |
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