CN104073976A - Preparation method of Z-direction high-strength pre-oxidized fiber thick felt - Google Patents
Preparation method of Z-direction high-strength pre-oxidized fiber thick felt Download PDFInfo
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- CN104073976A CN104073976A CN201410347096.9A CN201410347096A CN104073976A CN 104073976 A CN104073976 A CN 104073976A CN 201410347096 A CN201410347096 A CN 201410347096A CN 104073976 A CN104073976 A CN 104073976A
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Abstract
The invention discloses a preparation method of a Z-direction high-strength pre-oxidized fiber thick felt. The method comprises the following steps: 1, paving a short-cut pre-oxidized fiber into a felt, cutting the felt, paving a piece of cut felt on a foam cushion layer and placing the piece of cut felt which is paved on the foam cushion layer on a needling platform of a needling machine for carrying out needling; 2, rotating by 90 degrees horizontally, then paving another piece of cut felt for carrying out needling; 3, paving pieces of the felt and carrying out needling repeatedly according to the process in the step 2, and removing the foam cushion layer, so as to obtain a green body of the pre-oxidized fiber; 4, turning by 180 degrees, then placing the green body of the pre-oxidized fiber on the needling platform of the needling machine, paving a piece of the cut felt, then rotating by 90 degrees horizontally, carrying out needling, and paving pieces of the felt and carrying out needling repeatedly for four times according to the process in the step 2; 5, repeating the step 4 until the high-strength pre-oxidized fiber thick felt with the thickness of 100-650 mm is obtained. According to the invention, the manner of the two-side alternate direction-changing lamination needling formation is adopted, so that the deformation effect during the needling is eliminated furthest, and the homogeneity of the mechanical property of the product is guaranteed.
Description
Technical field
The invention belongs to carbon fiber felt preparing technical field, be specifically related to the preparation method of the thick felt of the pre-oxygen silk of a kind of Z-direction high strength.
Background technology
Carbon/carbon compound material, due to outstanding features such as light weight, high-strength, good thermal shock, ablation resistance excellences, since coming out, has been widely used in the aerospace fields such as rocket engine larynx lining, guided missile end cap, reentry vehicle nose cone.Carbon/carbon compound material has that frictional behavior is good, high temperature resistant, heat absorption capacity high, as aircraft brake system, has obtained extensive application.In addition, carbon/carbon compound material has the features such as thermal conductivity factor is little, thermal capacity is low, linear expansion coefficient is little, high temperature resistant, aspect large high-temperature polysilicon hydrogenation furnace, monocrystalline silicon draw machines thermal field material, is also being widely used.
Pre-oxygen silk felt is treated as carbon felt through follow-up high temperature cabonization, depositing operation.Space industry is used this carbon felt to make the parts of the antiscour of resistance to ablation at present, thereby require must possess good Z-direction tensile strength (being interlayer adhesion) and larger thickness as the pre-oxygen silk felt of presoma, Z-direction tensile strength is generally greater than 20kPa, and thickness is generally greater than 200mm.
At present, the preparation method of the relevant pre-thick felt of oxygen silk only has 2 Chinese patents, and one is in a kind of preparation (200910265237.1) of heat preservation carbon felt with integral structure, but does not provide detailed preparation method; And another is a kind of method and apparatus (201110311595.9) of preparing the thick felt of pre-oxygen silk, mentioned the concrete grammar of preparing the thick felt of pre-oxygen silk, by thin pre-oxygen silk base substrate being carried out to lamination acupuncture, finally obtaining thickness, be the thick felt of pre-oxygen silk that is no more than 50mm.There is many weak points in this kind of preparation method: products made thereby thickness is less.While making the above product of thickness 100mm, due to product easily distortion in accumulation acupuncture course, affect the homogeneity of product mechanical property, easily caused Z-direction tensile strength not enough.Depend merely on and strengthen thorn deeply and needling density, not only can reduce product X-Y to tensile strength, also cannot eliminate the defect of Z-direction tensile strength deficiency.The two all makes the comprehensive mechanical property of the thick felt of pre-oxygen silk deteriorated.Product thickness is limited has all limited pre-oxygen felt in the expansion application in the fields such as Aero-Space with Z-direction tensile strength deficiency.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, and the preparation method of the thick felt of the pre-oxygen silk of a kind of Z-direction high strength is provided.The method adopts two sides alternately to turn to lamination acupuncture moulding, eliminated to greatest extent the anamorphic effect in acupuncture course, guaranteed the homogeneity of product mechanical property, do not reducing product X-Y under the prerequisite of tensile strength, can effectively improve product Z-direction tensile strength, make product there is good comprehensive mechanical property, and greatly improved the final thickness of product; By the Study on thinning to needling process, grasp the impact of Needle-Punched Process Parameters on product comprehensive mechanical property, thereby by adjusting Needle-Punched Process Parameters, obtained the thick felt of the pre-oxygen silk of Z-direction high strength, meet the application requirements of aerospace field.Adopt the method when significantly improving product final thickness, obviously improved the homogeneity of product mechanical property, the thickness of the thick felt of pre-oxygen silk of preparation can reach 100mm～650mm, X-Y is not less than 1.9MPa to tensile strength, Z-direction tensile strength is not less than 20kPa, has widened the thick felt of pre-oxygen silk in the application of aerospace field.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the preparation method of the thick felt of the pre-oxygen silk of a kind of Z-direction high strength, it is characterized in that, and the method comprises the following steps:
Step 1, by short, cut pre-oxygen silk and be paved into net tire, the size cutting net tire according to needing machine, is layed in the net tire after a cutting on foam carpet, then the foam carpet that is equipped with net tire is placed on the acupuncture platform of needing machine, starts needing machine and carries out acupuncture;
Step 2, the net tire after acupuncture in step 1 is horizontally rotated to 90 °, then on the net tire after acupuncture, lay the net tire after cutting in a step 1, the platform of acupuncture simultaneously decline 1mm～1.7mm, starts needing machine and carries out acupuncture;
Step 3, according to the method for step 2, repeatedly lay net tire and acupuncture, defoam after bed course, obtaining thickness is the pre-oxygen silk base substrate of 40mm～50mm;
Step 4,180 ° of pre-oxygen silk base substrate upsets described in step 3 are placed on the acupuncture platform of needing machine, to upset after pre-oxygen silk base substrate on lay the net tire after cutting in a step 1, then the pre-oxygen silk base substrate of laying after net tire is horizontally rotated to 90 °, the platform of acupuncture simultaneously decline 1mm～1.7mm, start needing machine and carry out acupuncture, the more pre-oxygen silk base substrate after to acupuncture carries out four times and lays net tire and acupuncture according to the method for step 2;
Step 5, according to the method for step 4, the pre-oxygen silk base substrate that carries out laying for four times after net tire and acupuncture being laid to net tire and acupuncture, is 100mm～650mm until obtain thickness, and Z-direction tensile strength is not less than the thick felt of the pre-oxygen silk of high strength of 20kPa.
The preparation method of the above-mentioned thick felt of the pre-oxygen silk of a kind of Z-direction high strength, described in step 1, short length of cutting pre-oxygen silk is 50mm～80mm, short tensile strength of cutting pre-oxygen silk is not less than 2MPa.
The preparation method of the above-mentioned thick felt of the pre-oxygen silk of a kind of Z-direction high strength, the surface density of the tire of net described in step 1 is 250g/m
2～450g/m
2.
The preparation method of the above-mentioned thick felt of the pre-oxygen silk of a kind of Z-direction high strength, the density of acupuncture described in step 1 is 28 pins/cm
2～33 pins/cm
2.
The preparation method of the above-mentioned thick felt of the pre-oxygen silk of a kind of Z-direction high strength, the density of acupuncture described in step 2 is 28 pins/cm
2～33 pins/cm
2.
The preparation method of the above-mentioned thick felt of the pre-oxygen silk of a kind of Z-direction high strength, acupuncture platform decline 1.2mm～1.5mm in step 2.
The preparation method of the above-mentioned thick felt of the pre-oxygen silk of a kind of Z-direction high strength, the density of acupuncture described in step 4 is 28 pins/cm
2～33 pins/cm
2.
The preparation method of the above-mentioned thick felt of the pre-oxygen silk of a kind of Z-direction high strength, acupuncture platform decline 1.2mm～1.5mm in step 4.
The present invention compared with prior art has the following advantages:
1, the present invention adopts two sides alternately to turn to lamination acupuncture moulding, eliminated to greatest extent the anamorphic effect in acupuncture course, guaranteed the homogeneity of product mechanical property, do not reducing product X-Y under the prerequisite of tensile strength, can effectively improve product Z-direction tensile strength, make product there is good comprehensive mechanical property, and greatly improved the final thickness of product.
2, the present invention, by the Study on thinning to needling process, has grasped the impact of Needle-Punched Process Parameters on product comprehensive mechanical property, thereby by adjusting Needle-Punched Process Parameters, obtains the thick felt of the pre-oxygen silk of Z-direction high strength, meets the application requirements of aerospace field.
3, adopt method of the present invention when significantly improving product final thickness, obviously improved the homogeneity of product mechanical property, the thickness of the thick felt of pre-oxygen silk of preparation can reach 100mm～650mm, X-Y is not less than 1.9MPa to tensile strength, Z-direction tensile strength is not less than 20kPa, has widened the thick felt of pre-oxygen silk in the application of aerospace field.
Below in conjunction with embodiment, technical scheme of the present invention is described in further details.
The specific embodiment
Embodiment 1
Step 1, select that Yuci, Shanxi chemical fibre factory 12k is short to be cut pre-oxygen silk and make raw material, tensile strength 2MPa, cuts pre-oxygen silk to 50mm～80mm short, by short, cut pre-oxygen silk to be paved into surface density be 250g/m
2net tire, the size cutting net tire according to needing machine, is layed in the net tire after a cutting on foam carpet, then the foam carpet that is equipped with net tire is placed on the acupuncture platform of needing machine, starts needing machine and carries out acupuncture, the density of acupuncture is 28 pins/cm
2;
Step 2, the net tire after acupuncture in step 1 is horizontally rotated to 90 °, and then lay the net tire after cutting in a step 1, the platform of acupuncture simultaneously decline 1mm, starts needing machine and carries out acupuncture, and the density of acupuncture is 28 pins/cm
2;
Step 3, according to the method for step 2, repeatedly lay net tire and acupuncture, defoam after bed course, obtaining thickness is the pre-oxygen silk base substrate of 45mm;
Step 4,180 ° of pre-oxygen silk base substrate upsets described in step 3 are placed on the acupuncture platform of needing machine, to upset after pre-oxygen silk base substrate on lay the net tire after cutting in a step 1, then the pre-oxygen silk base substrate of laying after net tire is horizontally rotated to 90 °, the platform of acupuncture simultaneously decline 1mm, start needing machine and carry out acupuncture, the density of acupuncture is 28 pins/cm
2, the more pre-oxygen silk base substrate after to acupuncture carries out four times and lays net tire and acupuncture according to the method for step 2;
Step 5, according to the method for step 4, the pre-oxygen silk base substrate that carries out laying for four times after net tire and acupuncture is laid to net tire and acupuncture, until obtain thickness, be 250mm, X-Y is 2.14MPa to tensile strength, the thick felt of the pre-oxygen silk of high strength that Z-direction tensile strength is 27.4kPa.
Adopt conventional one side to turn to the thick felt of pre-oxygen silk of the preparation of lamination needle-punching method and the present embodiment same thickness, adopt same raw material and identical Needle-Punched Process Parameters, the X-Y of the thick felt of pre-oxygen silk of preparation is to larger with Z-direction tensile strength discreteness, Z-direction tensile strength presents the low phenomenon in high four limits, center, the slight lamination of Bian Shangyou, minimum Z-direction tensile strength is only 13.1kPa.
Embodiment 2
Step 1, select that Yuci, Shanxi chemical fibre factory 12k is short to be cut pre-oxygen silk and make raw material, tensile strength 2MPa, cuts pre-oxygen silk to 50mm～80mm short, by short, cut pre-oxygen silk to be paved into surface density be 450g/m
2net tire, the size cutting net tire according to needing machine, is layed in the net tire after a cutting on foam carpet, then the foam carpet that is equipped with net tire is placed on the acupuncture platform of needing machine, starts needing machine and carries out acupuncture, the density of acupuncture is 33 pins/cm
2;
Step 2, the net tire after acupuncture in step 1 is horizontally rotated to 90 °, and then lay the net tire after cutting in a step 1, the platform of acupuncture simultaneously decline 1.7mm, starts needing machine and carries out acupuncture, and the density of acupuncture is 33 pins/cm
2;
Step 3, according to the method for step 2, repeatedly lay net tire and acupuncture, defoam after bed course, obtaining thickness is the pre-oxygen silk base substrate of 40mm;
Step 4,180 ° of pre-oxygen silk base substrate upsets described in step 3 are placed on the acupuncture platform of needing machine, to upset after pre-oxygen silk base substrate on lay the net tire after cutting in a step 1, then the pre-oxygen silk base substrate of laying after net tire is horizontally rotated to 90 °, the platform of acupuncture simultaneously decline 1.7mm, start needing machine and carry out acupuncture, the density of acupuncture is 33 pins/cm
2, the more pre-oxygen silk base substrate after to acupuncture carries out four times and lays net tire and acupuncture according to the method for step 2;
Step 5, according to the method for step 4, the pre-oxygen silk base substrate that carries out laying for four times after net tire and acupuncture is laid to net tire and acupuncture, until obtain thickness, be 650mm, X-Y is 1.99MPa to tensile strength, the thick felt of the pre-oxygen silk of high strength that Z-direction tensile strength is 24.6kPa.
Adopt conventional one side to turn to the thick felt of pre-oxygen silk of the preparation of lamination needle-punching method and the present embodiment same thickness, adopt same raw material and identical Needle-Punched Process Parameters, the thick felt X-Y of pre-oxygen silk of preparation is to larger with Z-direction tensile strength discreteness, Z-direction tensile strength presents the low phenomenon in high four limits, center, on limit, occur obvious lamination, the Z-direction tensile strength of limit portion is only 4.6kPa.
Embodiment 3
Step 1, select that the 12k of Shanghai Institute of Synthetic Fiber is short to be cut pre-oxygen silk and make raw material, tensile strength 3MPa, cuts pre-oxygen silk to 50mm～80mm short, by short, cut pre-oxygen silk to be paved into surface density be 300g/m
2net tire, the size cutting net tire according to needing machine, is layed in the net tire after a cutting on foam carpet, then the foam carpet that is equipped with net tire is placed on the acupuncture platform of needing machine, starts needing machine and carries out acupuncture, the density of acupuncture is 30 pins/cm
2;
Step 2, the net tire after acupuncture in step 1 is horizontally rotated to 90 °, and then lay the net tire after cutting in a step 1, the platform of acupuncture simultaneously decline 1.2mm, starts needing machine and carries out acupuncture, and the density of acupuncture is 30 pins/cm
2;
Step 3, according to the method for step 2, repeatedly lay net tire and acupuncture, defoam after bed course, obtaining thickness is the pre-oxygen silk base substrate of 45mm;
Step 4,180 ° of pre-oxygen silk base substrate upsets described in step 3 are placed on the acupuncture platform of needing machine, to upset after pre-oxygen silk base substrate on lay the net tire after cutting in a step 1, then the pre-oxygen silk base substrate of laying after net tire is horizontally rotated to 90 °, the platform of acupuncture simultaneously decline 1.2mm, start needing machine and carry out acupuncture, the density of acupuncture is 30 pins/cm
2, the more pre-oxygen silk base substrate after to acupuncture carries out four times and lays net tire and acupuncture according to the method for step 2;
Step 5, according to the method for step 4, the pre-oxygen silk base substrate that carries out laying for four times after net tire and acupuncture is laid to net tire and acupuncture, until obtain thickness, be 100mm, X-Y is 1.9MPa to tensile strength, the thick felt of the pre-oxygen silk of high strength that Z-direction tensile strength is 28.9kPa.
Adopt conventional one side to turn to the thick felt of pre-oxygen silk of the preparation of lamination needle-punching method and the present embodiment same thickness, adopt same raw material and identical Needle-Punched Process Parameters, the Z-direction tensile strength of the thick felt of the pre-oxygen silk limit portion of preparation is only 21.2kPa.
Embodiment 4
Step 1, select that Yuci, Shanxi chemical fibre factory 12k is short to be cut pre-oxygen silk and make raw material, tensile strength 2MPa, cuts pre-oxygen silk to 50mm～80mm short, by short, cut pre-oxygen silk to be paved into surface density be 400g/m
2net tire, the size cutting net tire according to needing machine, is layed in the net tire after a cutting on foam carpet, then the foam carpet that is equipped with net tire is placed on the acupuncture platform of needing machine, starts needing machine and carries out acupuncture, the density of acupuncture is 32 pins/cm
2;
Step 2, the net tire after acupuncture in step 1 is horizontally rotated to 90 °, and then lay the net tire after cutting in a step 1, the platform of acupuncture simultaneously decline 1.5mm, starts needing machine and carries out acupuncture, and the density of acupuncture is 32 pins/cm
2;
Step 3, according to the method for step 2, repeatedly lay net tire and acupuncture, defoam after bed course, obtaining thickness is the pre-oxygen silk base substrate of 40mm;
Step 4,180 ° of pre-oxygen silk base substrate upsets described in step 3 are placed on the acupuncture platform of needing machine, to upset after pre-oxygen silk base substrate on lay the net tire after cutting in a step 1, then the pre-oxygen silk base substrate of laying after net tire is horizontally rotated to 90 °, the platform of acupuncture simultaneously decline 1.5mm, start needing machine and carry out acupuncture, the density of acupuncture is 32 pins/cm
2, the more pre-oxygen silk base substrate after to acupuncture carries out four times and lays net tire and acupuncture according to the method for step 2;
Step 5, according to the method for step 4, the pre-oxygen silk base substrate that carries out laying for four times after net tire and acupuncture is laid to net tire and acupuncture, until obtain thickness, be 150mm, X-Y is 2.04MPa to tensile strength, the thick felt of the pre-oxygen silk of high strength that Z-direction tensile strength is 26.3kPa.
Adopt conventional one side to turn to the thick felt of pre-oxygen silk of the preparation of lamination needle-punching method and the present embodiment same thickness, adopt same raw material and identical Needle-Punched Process Parameters, the thick felt Z-direction of the pre-oxygen silk tensile strength of preparation presents the low phenomenon in high four limits, center, and the Z-direction tensile strength of limit portion is only 13.9kPa.
Embodiment 5
Step 1, select that the 6k of Shanghai Institute of Synthetic Fiber is short to be cut pre-oxygen silk and make raw material, tensile strength 2.5MPa, cuts pre-oxygen silk to 50mm～80mm short, by short, cut pre-oxygen silk to be paved into surface density be 350g/m
2net tire, the size cutting net tire according to needing machine, is layed in the net tire after a cutting on foam carpet, then the foam carpet that is equipped with net tire is placed on the acupuncture platform of needing machine, starts needing machine and carries out acupuncture, the density of acupuncture is 30 pins/cm
2;
Step 2, the net tire after acupuncture in step 1 is horizontally rotated to 90 °, and then lay the net tire after cutting in a step 1, the platform of acupuncture simultaneously decline 1.4mm, starts needing machine and carries out acupuncture, and the density of acupuncture is 30 pins/cm
2;
Step 3, according to the method for step 2, repeatedly lay net tire and acupuncture, defoam after bed course, obtaining thickness is the pre-oxygen silk base substrate of 50mm;
Step 4,180 ° of pre-oxygen silk base substrate upsets described in step 3 are placed on the acupuncture platform of needing machine, to upset after pre-oxygen silk base substrate on lay the net tire after cutting in a step 1, then the pre-oxygen silk base substrate of laying after net tire is horizontally rotated to 90 °, the platform of acupuncture simultaneously decline 1.4mm, start needing machine and carry out acupuncture, the density of acupuncture is 30 pins/cm
2, the more pre-oxygen silk base substrate after to acupuncture carries out four times and lays net tire and acupuncture according to the method for step 2;
Step 5, according to the method for step 4, the pre-oxygen silk base substrate that carries out laying for four times after net tire and acupuncture is laid to net tire and acupuncture, until obtain thickness, be 400mm, X-Y is 1.95MPa to tensile strength, the thick felt of the pre-oxygen silk of high strength that Z-direction tensile strength is 20.2kPa.
Adopt conventional one side to turn to the thick felt of pre-oxygen silk of the preparation of lamination needle-punching method and the present embodiment same thickness, adopt same raw material and identical Needle-Punched Process Parameters, the thick felt X-Y of pre-oxygen silk of preparation is to larger with Z-direction tensile strength discreteness, Z-direction tensile strength presents the low phenomenon in high four limits, center, on limit, occur obvious lamination, the Z-direction tensile strength of limit portion is only 6.9kPa.
By the prepared thick felt of pre-oxygen silk of above 5 embodiment and the corresponding one side that adopts, turn to the Z-direction tensile strength comparative analysis of the thick felt of pre-oxygen silk prepared by lamination needle-punching method obviously to find out, adopt method of the present invention to prepare the thick felt of pre-oxygen silk, can obviously improve the homogeneity of goods Z-direction tensile strength, effectively improve its comprehensive mechanical property, prevent that lamination from appearring in goods, this to improve effect more obvious with the increase of products thickness, thereby make to prepare the thick felt of the pre-oxygen silk of Z-direction high strength that thickness is greater than 100mm, becomes possibility.
The above; it is only preferred embodiment of the present invention; not the present invention is done to any restriction, every any simple modification of above embodiment being done according to invention technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.
Claims (8)
1. a preparation method for the thick felt of the pre-oxygen silk of Z-direction high strength, is characterized in that, the method comprises the following steps:
Step 1, by short, cut pre-oxygen silk and be paved into net tire, the size cutting net tire according to needing machine, is layed in the net tire after a cutting on foam carpet, then the foam carpet that is equipped with net tire is placed on the acupuncture platform of needing machine, starts needing machine and carries out acupuncture;
Step 2, the net tire after acupuncture in step 1 is horizontally rotated to 90 °, then on the net tire after acupuncture, lay the net tire after cutting in a step 1, the platform of acupuncture simultaneously decline 1mm～1.7mm, starts needing machine and carries out acupuncture;
Step 3, according to the method for step 2, repeatedly lay net tire and acupuncture, defoam after bed course, obtaining thickness is the pre-oxygen silk base substrate of 40mm～50mm;
Step 4,180 ° of pre-oxygen silk base substrate upsets described in step 3 are placed on the acupuncture platform of needing machine, to upset after pre-oxygen silk base substrate on lay the net tire after cutting in a step 1, then the pre-oxygen silk base substrate of laying after net tire is horizontally rotated to 90 °, the platform of acupuncture simultaneously decline 1mm～1.7mm, start needing machine and carry out acupuncture, the more pre-oxygen silk base substrate after to acupuncture carries out four times and lays net tire and acupuncture according to the method for step 2;
Step 5, according to the method for step 4, the pre-oxygen silk base substrate that carries out laying for four times after net tire and acupuncture being laid to net tire and acupuncture, is 100mm～650mm until obtain thickness, and Z-direction tensile strength is not less than the thick felt of the pre-oxygen silk of high strength of 20kPa.
2. the preparation method of the thick felt of the pre-oxygen silk of a kind of Z-direction high strength according to claim 1, is characterized in that, described in step 1, short length of cutting pre-oxygen silk is 50mm～80mm, and short tensile strength of cutting pre-oxygen silk is not less than 2MPa.
3. the preparation method of the thick felt of the pre-oxygen silk of a kind of Z-direction high strength according to claim 1, is characterized in that, the surface density of the tire of net described in step 1 is 250g/m
2～450g/m
2.
4. the preparation method of the thick felt of the pre-oxygen silk of a kind of Z-direction high strength according to claim 1, is characterized in that, the density of acupuncture described in step 1 is 28 pins/cm
2～33 pins/cm
2.
5. the preparation method of the thick felt of the pre-oxygen silk of a kind of Z-direction high strength according to claim 1, is characterized in that, the density of acupuncture described in step 2 is 28 pins/cm
2～33 pins/cm
2.
6. the preparation method of the thick felt of the pre-oxygen silk of a kind of Z-direction high strength according to claim 1, is characterized in that, acupuncture platform decline 1.2mm～1.5mm in step 2.
7. the preparation method of the thick felt of the pre-oxygen silk of a kind of Z-direction high strength according to claim 1, is characterized in that, the density of acupuncture described in step 4 is 28 pins/cm
2～33 pins/cm
2.
8. the preparation method of the thick felt of the pre-oxygen silk of a kind of Z-direction high strength according to claim 1, is characterized in that, acupuncture platform decline 1.2mm～1.5mm in step 4.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034474A (en) * | 2015-07-07 | 2015-11-11 | 宜兴市飞舟高新科技材料有限公司 | Preparation method of high-strength pre-oxidized fiber thick felt |
| CN105058954A (en) * | 2015-07-02 | 2015-11-18 | 宜兴市飞舟高新科技材料有限公司 | Preparation method of high-strength pre-oxidized fiber felt |
| CN107974764A (en) * | 2017-11-13 | 2018-05-01 | 西安航空制动科技有限公司 | A kind of preparation method of two-side needled carbon brake disc precast body |
| CN113524826A (en) * | 2020-04-13 | 2021-10-22 | 常州有信环保技术有限公司 | Circulating needling thick felt and processing technology thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05171552A (en) * | 1991-12-19 | 1993-07-09 | Nippon Felt Co Ltd | Production of high-density felt made of carbon fiber |
| CN101691684A (en) * | 2009-09-23 | 2010-04-07 | 北京航空航天大学 | Preparation and carbonization method of needle-punched pre-oxidative fiber prefabricated part |
| CN101698975A (en) * | 2009-09-23 | 2010-04-28 | 北京航空航天大学 | Method for modifying carbonized pre-oxidized fiber preform interface by carbon nanotube |
| CN102505340A (en) * | 2011-10-14 | 2012-06-20 | 大连隆田科技有限公司 | Method and device for preparing pre-oxidation fiber thick felt |
| CN203333970U (en) * | 2013-05-10 | 2013-12-11 | 宜兴市飞舟高新科技材料有限公司 | Device for manufacturing pre-oxidized fiber thick felt |
-
2014
- 2014-07-21 CN CN201410347096.9A patent/CN104073976B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05171552A (en) * | 1991-12-19 | 1993-07-09 | Nippon Felt Co Ltd | Production of high-density felt made of carbon fiber |
| CN101691684A (en) * | 2009-09-23 | 2010-04-07 | 北京航空航天大学 | Preparation and carbonization method of needle-punched pre-oxidative fiber prefabricated part |
| CN101698975A (en) * | 2009-09-23 | 2010-04-28 | 北京航空航天大学 | Method for modifying carbonized pre-oxidized fiber preform interface by carbon nanotube |
| CN102505340A (en) * | 2011-10-14 | 2012-06-20 | 大连隆田科技有限公司 | Method and device for preparing pre-oxidation fiber thick felt |
| CN203333970U (en) * | 2013-05-10 | 2013-12-11 | 宜兴市飞舟高新科技材料有限公司 | Device for manufacturing pre-oxidized fiber thick felt |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058954A (en) * | 2015-07-02 | 2015-11-18 | 宜兴市飞舟高新科技材料有限公司 | Preparation method of high-strength pre-oxidized fiber felt |
| CN105034474A (en) * | 2015-07-07 | 2015-11-11 | 宜兴市飞舟高新科技材料有限公司 | Preparation method of high-strength pre-oxidized fiber thick felt |
| CN107974764A (en) * | 2017-11-13 | 2018-05-01 | 西安航空制动科技有限公司 | A kind of preparation method of two-side needled carbon brake disc precast body |
| CN113524826A (en) * | 2020-04-13 | 2021-10-22 | 常州有信环保技术有限公司 | Circulating needling thick felt and processing technology thereof |
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| CN104073976B (en) | 2016-06-22 |
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