CN1948224A - Preparation method of C/C composite material conductive threaded rod - Google Patents
Preparation method of C/C composite material conductive threaded rod Download PDFInfo
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- CN1948224A CN1948224A CN 200610104824 CN200610104824A CN1948224A CN 1948224 A CN1948224 A CN 1948224A CN 200610104824 CN200610104824 CN 200610104824 CN 200610104824 A CN200610104824 A CN 200610104824A CN 1948224 A CN1948224 A CN 1948224A
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- threaded rod
- composite material
- conducting rod
- carbonization
- conductive threaded
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Abstract
The present invention discloses a preparation method of C/C composite material electro-conductive threaded rod. Said invention adopts an 'axial carbon fiber rod + carbon fibre winded circumferential threads' prefabricated body, and includes the following steps: steps: firstly, making the prefabricated body undergo the quick chemical gas-phase deposition process to implement densification, then preparing intermediate density C/C composite material blank in a short time; machining threaded rod along winded direction, using bitumen as impregnant, then making the porous intermediate density C/C composite material blank undergo the process of repeat 'vacuum impregnation-pressure cracking' treatment so as to obtain the invented high-density C/C composite material electro-conductive threaded rod.
Description
Technical field
The present invention relates to a kind of preparation method of C/C composite material conductive threaded rod.
Background technology
The electrode of chemical industries such as domestic system fluorine-conductive threaded rod adopts the red copper material.The heat physical properties that the present subject matter that exists is red copper and decolorizing carbon battery lead plate does not match, because of the thermal stresses storage effect, cause the shortening in work-ing life of decolorizing carbon battery lead plate, only can use less than spalling just took place in 2 months, need blowing out to change again, not only increased cost but also influenced production schedule.And the price of external import 3 D weaving conductive threaded rod is very expensive, is difficult to widely apply.
The major cause that causes 3 D weaving C/C matrix material sky high cost is that 3 D weaving precast body knitting forming cycle length, equipment have high input.This also is the major cause that industrial applications could only be used, be difficult to 3 D weaving C/C matrix material in high-tech areas such as aerospace.
Summary of the invention
The objective of the invention is provides the preparation method of the C/C composite material conductive threaded rod that a kind of shaping cycle is short, cost is low for overcoming the shortcoming that the 3 D weaving C/C composite preform knitting forming cycle is long, cost is high.
For achieving the above object, the technical solution adopted in the present invention is: the preparation method of a kind of C/C composite material conductive threaded rod of worker is characterized in that this method may further comprise the steps:
(1) adopts 6K polyacrylonitrile carbon fiber and Resins, epoxy, drawing carbon fiber rod;
(2) twine carbon fiber/acetone-furfural resin composite layer with wrapping machine hoop on the axial carbon fibres rod, make preform, the axial stepping amount of wrapping machine equals flight pitch;
(3) preform was solidified in baking oven 4～6 hours, solidification value is 200 ℃;
(4) preform after solidifying in the step (3) is packed into carbide furnace feeds shielding gas N
2, be carbonization under 750 ℃～1100 ℃ conditions in carbonization temperature, make the conducting rod blank;
(5) the conducting rod blank of carbonization is packed into chemical vapor deposition stove feeds C
3H
6-N
2Reaction gas, oriented flow be through the conducting rod blank, deposit carbon matrix 150～250 hours, and this moment, the conducting rod green density was 1.35g/cm
3～1.50g/cm
3
(6) adopt high carbon residue pitch as soaker,, reach 1.55g/cm up to the density of conducting rod blank to conducting rod blank dipping-carbonization densification 4～6 times
3～1.75g/cm
3
(7) will flood-conducting rod blank after the carbonization densification set by step the hoop winding direction machine in (2) add screw thread, finally obtain the conductive threaded rod product.
The flight pitch that the hoop fiber twines in the described step (2) is 2～20 millimeters.
The present invention compared with prior art has the following advantages:
(1) overcome the shortcoming that the 3 D weaving C/C composite preform knitting forming cycle is long, cost is high, the C/C composite material conductive threaded rod of preparation has that shaping cycle is short, cost is low, has wide industrialization promotion application prospect.
(2) the C/C composite material conductive threaded rod of the present invention's preparation is an anisotropy, is skin-core structure, and the epidermis screw thread is the hoop fiber, and core is an axial direction fibre.Compare with quasi-isotropic 3 D weaving C/C composite material conductive threaded rod, conducting rod axial direction fibre content of the present invention is apparently higher than the 3 D weaving conductive threaded rod, thereby axially resistivity is lower than the 3 D weaving conductive threaded rod; The fiber winding direction moves towards identical with screw thread, and fiber is continuous in the screw thread, and screw thread is not easy slag to occur falling and falls dental phenomenon, and the screw thread continuity is good, alternative import 3 D weaving C/C composite material conductive threaded rod.
(3) inherit chemical vapor deposition method and bituminizing cracking technology and be fit to characteristics such as " but large-size components mass scale production of complicated shape arbitrarily ".
Embodiment
Embodiment 1
Adopt 6K polyacrylonitrile carbon fiber and Resins, epoxy (wherein K represents tow thousand radicals), drawing goes out the carbon fiber rod of φ 20mm * 620mm; On carbon fiber rod, twine carbon fiber/acetone-furfural resin, twine stepping amount 4mm; Preform was solidified in baking oven 4 hours, and solidification value is 200 ℃, with the carbide furnace of packing into of the preform after solidifying, feeds shielding gas N
2, be carbonization under 900 ℃ of conditions in carbonization temperature, make the conducting rod blank, with the conducting rod blank of the carbonization chemical vapor deposition stove of packing into, feed C
3H
6-N
2Reaction gas, oriented flow be through the conducting rod blank, deposit carbon matrix 150 hours, and this moment, the conducting rod green density was 1.45g/cm
3Adopt high carbon residue pitch, fine and close 3 times of dipping-carbonization, density reaches 1.60g/cm
3Machine adds the logical screw thread conductive threaded rod of the standard coarse thread that obtains long 600mm, M22.
Embodiment 2
Adopt 6K polyacrylonitrile carbon fiber and Resins, epoxy (wherein K represents tow thousand radicals), drawing goes out the carbon fiber rod of φ 22mm * 320mm; On carbon fiber rod, twine carbon fiber/acetone-furfural resin, twine stepping amount 5mm; Preform was solidified in baking oven 4 hours, and solidification value is 200 ℃, with the carbide furnace of packing into of the preform after solidifying, feeds shielding gas N
2, be carbonization under 1000 ℃ of conditions in carbonization temperature, make the conducting rod blank, with the conducting rod blank of the carbonization chemical vapor deposition stove of packing into, feed C
3H
6-N
2Reaction gas, oriented flow be through the conducting rod blank, deposit carbon matrix 250 hours, and this moment, the conducting rod green density was 1.50g/cm
3Adopt high carbon residue pitch, fine and close 4 times of dipping-carbonization, density reaches 1.70g/cm
3Machine adds the logical screw thread conductive threaded rod of the standard coarse thread that obtains long 300mm, M22.
Embodiment 3
Adopt 6K polyacrylonitrile carbon fiber and Resins, epoxy (wherein K represents tow thousand radicals), drawing goes out the carbon fiber rod of φ 20mm * 620mm; On carbon fiber rod, twine carbon fiber/acetone-furfural resin, twine stepping amount 4mm; Preform was solidified in baking oven 6 hours, and solidification value is 200 ℃, with the carbide furnace of packing into of the preform after solidifying, feeds shielding gas N
2, be carbonization under 750 ℃ of conditions in carbonization temperature, make the conducting rod blank, with the conducting rod blank of the carbonization chemical vapor deposition stove of packing into, feed C
3H
6-N
2Reaction gas, oriented flow be through the conducting rod blank, deposit carbon matrix 180 hours, and this moment, the conducting rod green density was 1.35g/cm
3Adopt high carbon residue pitch, fine and close 3 times of dipping-carbonization, density reaches 1.55g/cm
3Machine adds the logical screw thread conductive threaded rod of the standard coarse thread that obtains long 600mm, M22.
Embodiment 4
Adopt 6K polyacrylonitrile carbon fiber and Resins, epoxy (wherein K represents tow thousand radicals), drawing goes out the carbon fiber rod of φ 20mm * 620mm; On carbon fiber rod, twine carbon fiber/acetone-furfural resin, twine stepping amount 4mm; Preform was solidified in baking oven 5 hours, and solidification value is 200 ℃, with the carbide furnace of packing into of the preform after solidifying, feeds shielding gas N
2, be carbonization under 1100 ℃ of conditions in carbonization temperature, make the conducting rod blank, with the conducting rod blank of the carbonization chemical vapor deposition stove of packing into, feed C
3H
6-N
2Reaction gas, oriented flow be through the conducting rod blank, deposit carbon matrix 200 hours, and density reaches 1.50g/cm
3Adopt high carbon residue pitch, fine and close 3 times of dipping-carbonization, density reaches 1.75g/cm
3Machine adds the logical screw thread conductive threaded rod of the standard coarse thread that obtains long 600mm, M22.
Claims (2)
1, a kind of preparation method of C/C composite material conductive threaded rod is characterized in that this method may further comprise the steps:
(1) adopts 6K polyacrylonitrile carbon fiber and Resins, epoxy, drawing carbon fiber rod;
(2) twine carbon fiber/acetone-furfural resin composite layer with wrapping machine hoop on the axial carbon fibres rod, make preform, the axial stepping amount of wrapping machine equals flight pitch;
(3) preform was solidified in baking oven 4～6 hours, solidification value is 200 ℃;
(4) preform after solidifying in the step (3) is packed into carbide furnace feeds shielding gas N
2, be carbonization under 750 ℃～1100 ℃ conditions in carbonization temperature, make the conducting rod blank;
(5) the conducting rod blank of carbonization is packed into chemical vapor deposition stove feeds C
3H
6-N
2Reaction gas, oriented flow be through the conducting rod blank, deposit carbon matrix 150～250 hours, and this moment, the conducting rod green density was 1.35g/cm
3～1.50g/cm
3
(6) adopt high carbon residue pitch as soaker,, reach 1.55g/cm up to the density of conducting rod blank to conducting rod blank dipping-carbonization densification 4～6 times
3～1.75g/cm
3
(7) will flood-conducting rod blank after the carbonization densification set by step the hoop winding direction machine in (2) add screw thread, finally obtain the conductive threaded rod product.
2, the preparation method of a kind of C/C composite material conductive threaded rod according to claim 1 is characterized in that the flight pitch that the hoop fiber twines in the described step (2) is 2～20 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101048249A CN100372810C (en) | 2006-10-31 | 2006-10-31 | Preparation method of C/C composite material conductive threaded rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101048249A CN100372810C (en) | 2006-10-31 | 2006-10-31 | Preparation method of C/C composite material conductive threaded rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1948224A true CN1948224A (en) | 2007-04-18 |
| CN100372810C CN100372810C (en) | 2008-03-05 |
Family
ID=38017866
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101048249A Active CN100372810C (en) | 2006-10-31 | 2006-10-31 | Preparation method of C/C composite material conductive threaded rod |
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| CN (1) | CN100372810C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905977A (en) * | 2010-08-04 | 2010-12-08 | 蒋建纯 | Method for manufacturing integral heater for carbon/carbon polycrystalline silicon ingot furnace |
| CN102531659A (en) * | 2011-11-09 | 2012-07-04 | 西安航天复合材料研究所 | Treatment method of carbon fiber ash for C/C (carbon/carbon) composite material |
| CN107382355A (en) * | 2017-07-24 | 2017-11-24 | 苏州宏久航空防热材料科技有限公司 | A kind of fine and close C/C composite material and preparation method thereofs |
| CN108947556A (en) * | 2018-07-13 | 2018-12-07 | 中国航发北京航空材料研究院 | A kind of carbon carbon composite preparation method based on one-way tape technique |
| CN109678548A (en) * | 2019-02-22 | 2019-04-26 | 陕西美兰德炭素有限责任公司 | A kind of carbon/carbon compound material spring producing method and device |
-
2006
- 2006-10-31 CN CNB2006101048249A patent/CN100372810C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905977A (en) * | 2010-08-04 | 2010-12-08 | 蒋建纯 | Method for manufacturing integral heater for carbon/carbon polycrystalline silicon ingot furnace |
| CN101905977B (en) * | 2010-08-04 | 2012-05-23 | 湖南南方搏云新材料有限责任公司 | Method for manufacturing integral heater for carbon/carbon polycrystalline silicon ingot furnace |
| CN102531659A (en) * | 2011-11-09 | 2012-07-04 | 西安航天复合材料研究所 | Treatment method of carbon fiber ash for C/C (carbon/carbon) composite material |
| CN107382355A (en) * | 2017-07-24 | 2017-11-24 | 苏州宏久航空防热材料科技有限公司 | A kind of fine and close C/C composite material and preparation method thereofs |
| CN108947556A (en) * | 2018-07-13 | 2018-12-07 | 中国航发北京航空材料研究院 | A kind of carbon carbon composite preparation method based on one-way tape technique |
| CN108947556B (en) * | 2018-07-13 | 2021-03-26 | 中国航发北京航空材料研究院 | Preparation method of carbon-carbon composite material based on unidirectional tape process |
| CN109678548A (en) * | 2019-02-22 | 2019-04-26 | 陕西美兰德炭素有限责任公司 | A kind of carbon/carbon compound material spring producing method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100372810C (en) | 2008-03-05 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Assignee: Institute of space power technology Assignor: Xi'an Aerospace Composite Materials Institute Contract record no.: 2010610000029 Denomination of invention: Method for preparing conductive screw rod of C/C composite material Granted publication date: 20080305 License type: Exclusive License Open date: 20070418 Record date: 20100611 |