CN102408254A - Carbon fiber hard felt surface treatment method and carbon fiber hard felt - Google Patents
Carbon fiber hard felt surface treatment method and carbon fiber hard felt Download PDFInfo
- Publication number
- CN102408254A CN102408254A CN2011103552611A CN201110355261A CN102408254A CN 102408254 A CN102408254 A CN 102408254A CN 2011103552611 A CN2011103552611 A CN 2011103552611A CN 201110355261 A CN201110355261 A CN 201110355261A CN 102408254 A CN102408254 A CN 102408254A
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- hard felt
- thomel
- felt
- carbon fiber
- hard
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004381 surface treatment Methods 0.000 title claims abstract description 19
- 229920000049 Carbon (fiber) Polymers 0.000 title abstract 7
- 239000004917 carbon fiber Substances 0.000 title abstract 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 17
- 238000005245 sintering Methods 0.000 claims abstract description 17
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 17
- 239000000919 ceramic Substances 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000010000 carbonizing Methods 0.000 claims description 4
- 238000005087 graphitization Methods 0.000 claims description 4
- 210000001161 mammalian embryo Anatomy 0.000 claims description 4
- 239000013078 crystal Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000004615 ingredient Substances 0.000 abstract 2
- 238000000465 moulding Methods 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000009950 felting Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229920003987 resole Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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Abstract
The invention relates to a surface treatment method of a carbon fiber hard felt and the carbon fiber hard felt, and the method comprises the following steps: selecting SIC powder, carbon powder and thermosetting resin in a predetermined proportion, and uniformly mixing to form a mixture; coating the ingredients on the surface of the prepressing hard felt; putting the pre-pressed hard felt coated with the ingredients into a press, and performing hot press molding under a preset condition; putting the hard felt after hot press molding into a high-temperature furnace for reaction and sintering; and cooling the hard felt after reaction and sintering to form the carbon fiber hard felt with the surface covered with ceramic. The invention not only can solve the problem of powder falling in the use of the carbon fiber hard felt, but also has less carbon volatilization in the use under the high-temperature environment, is beneficial to being used in a single crystal furnace and a polycrystalline furnace, and improves the service performance of the carbon fiber hard felt; in addition, the surface treatment process and the felting process are carried out synchronously, so that the process flow can be shortened, and the production efficiency is improved.
Description
Technical field
The present invention relates to crystal silicon ingot casting technology field, relate in particular to hard felt surface treatment method of a kind of thomel that uses in the crystal silicon ingot furnace and the hard felt of thomel.
Background technology
At present,, usually hard felt is carried out surface treatment, promptly at hard other materials of felt surface coverage one deck, such as pasting graphite paper etc. on hard felt surface in order to reach hard felt use properties under various conditions.
Existing surface treatment method to hard felt has the carbon cloth of subsides usually, pastes graphite paper etc.; Though these methods can solve the hard felt problem of easy dry linting in use; But, under the high temperature working conditions, but can't avoid the volatilization of hard felt surface C; Especially in polycrystalline furnace and single crystal growing furnace, this C volatilization can have influence on the quality of product.
Summary of the invention
Main purpose of the present invention is to provide hard felt surface treatment method of a kind of thomel and the hard felt of thomel, is intended to improve the use properties of the hard felt of thomel.
In order to achieve the above object, the present invention proposes the hard felt surface treatment method of a kind of thomel, may further comprise the steps:
SIC powder, carbon dust and the thermosetting resin of apolegamy predetermined proportion mix, and form batching;
Said batching is coated in the hard felt of precompressed surface;
The hard felt of the precompressed that scribbles batching is put into press, hot-forming under predetermined condition;
Hard felt after hot-forming is put into the High Temperature Furnaces Heating Apparatus reaction sintering;
Hard felt behind the cooling cooling reaction sintering forms the ceramic hard felt of thomel of surface coverage.
Preferably, the said step that hard felt after hot-forming is put into the High Temperature Furnaces Heating Apparatus reaction sintering comprises:
Hard felt after hot-forming is put into High Temperature Furnaces Heating Apparatus, at N
2Be heated to 800 ℃ under the protection, and be incubated 8 hours, carry out roasting, carbonizing treatment, make hard felt coating surfaces SIC become ceramic plain embryo;
At N
2Be heated to 2000 ℃ under the protection, and be incubated 20 hours, carry out the graphitization processing on hard felt surface.
Preferably, the mass mixing ratio example of said SIC powder, carbon dust and thermosetting resin is: 100: 2: 25.
Preferably, said batching is 0.5mm～3mm at the coating thickness on the hard felt of precompressed surface.
Preferably, hot-forming said predetermined condition is: Heating temperature is 120 ℃, 4 hours heat-up times.
The present invention also proposes the hard felt of a kind of thomel, and the hard felt surface coverage of said thomel has one deck SIC ceramic mixture layer.
Preferably, said SIC ceramic mixture layer is mixed by SIC powder, carbon dust and the thermosetting resin of predetermined proportion.
Preferably, the mass mixing ratio example of said SIC powder, carbon dust and thermosetting resin is: 100: 2: 25.
Hard felt surface treatment method of a kind of thomel and the hard felt of thomel that the present invention proposes; Not only can solve the problem of dry linting in the hard felt use of thomel; And the carbon volatilization is few when under hot environment, using; Help in single crystal growing furnace and polycrystalline furnace, using, promptly improved the use properties of the hard felt of thomel; In addition, surface treatment procedure of the present invention and felt process are carried out synchronously, therefore, can shorten process flow, enhance productivity.
Description of drawings
Fig. 1 is the schematic flow sheet of the hard felt surface treatment method of thomel of the present invention preferred embodiment;
Fig. 2 is a schematic flow sheet of in the preferred embodiment of the hard felt surface treatment method of thomel of the present invention hard felt after hot-forming being put into the High Temperature Furnaces Heating Apparatus reaction sintering.
In order to make technical scheme of the present invention clearer, clear, will combine accompanying drawing to do further to detail below.
Embodiment
Embodiment of the invention solution mainly is: SIC powder, carbon dust and thermosetting resin through the apolegamy predetermined proportion mix; Be coated in hard felt surface; And carry out hot pressing, reaction sintering and cooling processing under cooling successively; Form the hard felt of thomel that covers pottery, to improve the use properties of the hard felt of thomel.
As shown in Figure 1, preferred embodiment of the present invention proposes the hard felt surface treatment method of a kind of thomel, comprising:
Step S101, SIC powder, carbon dust and the thermosetting resin of apolegamy predetermined proportion mix, and form batching;
Apolegamy SIC powder, carbon dust, thermosetting resin are that starting material are even according to certain mixed, form batching, and wherein the mass mixing ratio example of SIC powder, carbon dust and thermosetting resin is: 100: 2: 25.
Thermosetting resin can be selected PF (Phenol Formaledlyde, resol) for use.
Step S102 is coated in the hard felt of precompressed surface with batching;
The batching of certain mass is coated in the hard felt of precompressed surface, can calculates the quality of required batching according to coating thickness such as 1mm.
Batching can be 0.5mm～3mm at the coating thickness on the hard felt of precompressed surface in the present embodiment.
Step S103 puts into press with the hard felt of the precompressed that scribbles batching, and is hot-forming under predetermined condition;
The hard felt of the precompressed that scribbles batching is put into press, and hot-forming under certain hour and temperature, required time and temperature are decided by the type of the thermosetting resin of selecting for use.For example certain technical grade resol can be selected 120 ℃ of Heating temperatures for use, 4 hours heat-up times.
Step S104 puts into the High Temperature Furnaces Heating Apparatus reaction sintering with the hard felt after hot-forming;
Preformed hard felt is put into High Temperature Furnaces Heating Apparatus carry out the reaction sintering processing.This reaction sintering treating processes is divided into two stages:
Stage one: at N
2(nitrogen) protection down is heated to 800 ℃, and is incubated 8 hours, carries out roasting, carbonizing treatment, treat the machine thing pyrolysis on hard felt surface after, the SIC in the felt top coat becomes ceramic plain embryo firmly.
Stage two: continue to be heated to 2000 ℃, and be incubated 20 hours, carry out the graphitization processing of hard felt.
Step S105, the hard felt behind the cooling cooling reaction sintering forms the ceramic hard felt of thomel of surface coverage.
To the processing under cooling of lowering the temperature of the hard felt behind the reaction sintering, make the surface and carry out the hard felt of ceramic coated thomel at last.
In the practical implementation process, as shown in Figure 2, above-mentioned steps S104 comprises:
Step S1041 puts into High Temperature Furnaces Heating Apparatus with the hard felt after hot-forming, at N
2Be heated to 800 ℃ under the protection, and be incubated 8 hours, carry out roasting, carbonizing treatment, make hard felt coating surfaces SIC become ceramic plain embryo;
Step S1042 is at N
2Be heated to 2000 ℃ under the protection, and be incubated 20 hours, carry out the graphitization processing on hard felt surface.
Present embodiment is in hard felt surface coverage one deck SIC ceramic mixture matter, not only can solve hard felt use in the problem of dry linting, and the carbon volatilization is few when using under the hot environment, is very advantageous in single crystal growing furnace and polycrystalline furnace and uses.
And; The process for treating surface of the hard felt of existing thomel all is " aftertreatment " basically; Be that surface treatment procedure is the one procedure that hard felt production process carries out afterwards; And hard felt surface treatment process of thomel of the present invention and felt carry out synchronously, have shortened process flow thus, have improved production efficiency.
In addition, preferred embodiment of the present invention also proposes the hard felt of a kind of thomel, and the hard felt surfaces coated of this thomel is covered with SIC ceramic mixture layer.
Wherein, SIC ceramic mixture layer is formed by SIC powder, carbon dust and the thermosetting resin hybrid reaction sintering of predetermined proportion.The mass mixing ratio example of SIC powder, carbon dust and thermosetting resin can for: 100: 2: 25.
Hard felt surface treatment method of embodiment of the invention thomel and the hard felt of thomel; Not only can solve the problem of dry linting in the hard felt use of thomel; And the carbon volatilization is few when under hot environment, using, and helps in single crystal growing furnace and polycrystalline furnace, using, and has promptly improved the use properties of the hard felt of thomel; In addition, surface treatment procedure of the present invention and felt process are carried out synchronously, therefore, can shorten process flow, enhance productivity.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or flow process conversion that utilizes specification sheets of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (8)
1. the hard felt surface treatment method of thomel is characterized in that, may further comprise the steps:
SIC powder, carbon dust and the thermosetting resin of apolegamy predetermined proportion mix, and form batching;
Said batching is coated in the hard felt of precompressed surface;
The hard felt of the precompressed that scribbles batching is put into press, hot-forming under predetermined condition;
Hard felt after hot-forming is put into the High Temperature Furnaces Heating Apparatus reaction sintering;
Hard felt behind the cooling cooling reaction sintering forms the ceramic hard felt of thomel of surface coverage.
2. method according to claim 1 is characterized in that, the said step that hard felt after hot-forming is put into the High Temperature Furnaces Heating Apparatus reaction sintering comprises:
Hard felt after hot-forming is put into High Temperature Furnaces Heating Apparatus, at N
2Be heated to 800 ℃ under the protection, and be incubated 8 hours, carry out roasting, carbonizing treatment, make hard felt coating surfaces SIC become ceramic plain embryo;
At N
2Be heated to 2000 ℃ under the protection, and be incubated 20 hours, carry out the graphitization processing on hard felt surface.
3. method according to claim 1 and 2 is characterized in that, the mass mixing ratio example of said SIC powder, carbon dust and thermosetting resin is: 100: 2: 25.
4. method according to claim 3 is characterized in that, said batching is 0.5mm～3mm at the coating thickness on the hard felt of precompressed surface.
5. method according to claim 4 is characterized in that, hot-forming said predetermined condition is: Heating temperature is 120 ℃, 4 hours heat-up times.
6. the hard felt of thomel is characterized in that, the hard felt surface coverage of said thomel has one deck SIC ceramic mixture layer.
7. the hard felt of thomel according to claim 6 is characterized in that, said SIC ceramic mixture layer is formed by SIC powder, carbon dust and the thermosetting resin hybrid reaction sintering of predetermined proportion.
8. the hard felt of thomel according to claim 7 is characterized in that the mass mixing ratio example of said SIC powder, carbon dust and thermosetting resin is: 100: 2: 25.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110355261 CN102408254B (en) | 2011-11-10 | 2011-11-10 | Carbon fiber hard felt surface treatment method and carbon fiber hard felt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110355261 CN102408254B (en) | 2011-11-10 | 2011-11-10 | Carbon fiber hard felt surface treatment method and carbon fiber hard felt |
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| CN102408254A true CN102408254A (en) | 2012-04-11 |
| CN102408254B CN102408254B (en) | 2013-05-01 |
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| CN 201110355261 Expired - Fee Related CN102408254B (en) | 2011-11-10 | 2011-11-10 | Carbon fiber hard felt surface treatment method and carbon fiber hard felt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048902A (en) * | 2017-10-30 | 2018-05-18 | 镇江环太硅科技有限公司 | The polycrystalline furnace thermal field insulating layer and its preparation process of a kind of low impurity of high-purity |
| CN110258131A (en) * | 2019-07-05 | 2019-09-20 | 聊城大学 | A kind of solidification carbon felt protective coating |
| CN118184380A (en) * | 2024-03-13 | 2024-06-14 | 浙江星辉新材料科技有限公司 | A modified carbon fiber hard felt and its preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719286A (en) * | 2005-06-29 | 2006-01-11 | 中国人民解放军国防科学技术大学 | Honeycomb sandwich structure silicon carbide matrix composite reflector and preparation method thereof |
| CN101664955A (en) * | 2009-09-26 | 2010-03-10 | 甘肃郝氏炭纤维有限公司 | Manufacture process of thermal insulation bucket of hard composite graphite felt for single crystal furnace |
-
2011
- 2011-11-10 CN CN 201110355261 patent/CN102408254B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719286A (en) * | 2005-06-29 | 2006-01-11 | 中国人民解放军国防科学技术大学 | Honeycomb sandwich structure silicon carbide matrix composite reflector and preparation method thereof |
| CN101664955A (en) * | 2009-09-26 | 2010-03-10 | 甘肃郝氏炭纤维有限公司 | Manufacture process of thermal insulation bucket of hard composite graphite felt for single crystal furnace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048902A (en) * | 2017-10-30 | 2018-05-18 | 镇江环太硅科技有限公司 | The polycrystalline furnace thermal field insulating layer and its preparation process of a kind of low impurity of high-purity |
| CN108048902B (en) * | 2017-10-30 | 2019-10-29 | 包头美科硅能源有限公司 | The polycrystalline furnace thermal field insulating layer and its preparation process of a kind of low impurity of high-purity |
| CN110258131A (en) * | 2019-07-05 | 2019-09-20 | 聊城大学 | A kind of solidification carbon felt protective coating |
| CN118184380A (en) * | 2024-03-13 | 2024-06-14 | 浙江星辉新材料科技有限公司 | A modified carbon fiber hard felt and its preparation method and application |
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| Publication number | Publication date |
|---|---|
| CN102408254B (en) | 2013-05-01 |
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Owner name: SHENZHEN GOLD STONE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: GOLD STONE PRECISION TECHNOLOGY(SHENZHEN)CO., LTD. |
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Address after: 518000, Shenzhen, Guangdong, Baoan District Fuyong Street on the south side of the first floor of Great Ocean Road 4, two floor East Patentee after: Shenzhen Gold Stone Technology Co., Ltd. Address before: 518000, Shenzhen, Guangdong, Baoan District Fuyong Street on the south side of the first floor of Great Ocean Road 4, two floor East Patentee before: Gold stone precision technology (Shenzhen) Co., Ltd. |
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Application publication date: 20120411 Assignee: Dongguan Kaipeng Composite Material Co., Ltd. Assignor: Shenzhen Gold Stone Technology Co., Ltd. Contract record no.: 2013440020328 Denomination of invention: Carbon fiber hard felt surface treatment method and carbon fiber hard felt Granted publication date: 20130501 License type: Exclusive License Record date: 20131120 |
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Inventor after: Zhu Baixi Inventor after: Li Wenhong Inventor after: Wu Bin Inventor after: Long Limei Inventor before: Long Limei |
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Free format text: CORRECT: INVENTOR; FROM: LONG LIMEI TO: ZHU BAIXI LI WENHONG WU BIN LONG LIMEI |
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Address after: Baoan District Songgang street, Shenzhen city 518105 Guangdong province with rich industrial zone safety run road No. 2 Patentee after: Shenzhen Gold Stone Technology Co., Ltd Address before: 518000, Shenzhen, Guangdong, Baoan District Fuyong Street on the south side of the first floor of Great Ocean Road 4, two floor East Patentee before: Shenzhen Gold Stone Technology Co., Ltd. |
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