EA201700568A1 - CARBON-CARBON HEAT SCREEN - Google Patents
CARBON-CARBON HEAT SCREENInfo
- Publication number
- EA201700568A1 EA201700568A1 EA201700568A EA201700568A EA201700568A1 EA 201700568 A1 EA201700568 A1 EA 201700568A1 EA 201700568 A EA201700568 A EA 201700568A EA 201700568 A EA201700568 A EA 201700568A EA 201700568 A1 EA201700568 A1 EA 201700568A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- layer
- carbon
- heat
- inner shell
- surface density
- Prior art date
Links
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Thermal Insulation (AREA)
Abstract
Изобретение относится к области теплоэнергетики и предназначено для использования в высокотемпературных вакуумных электропечах. Технический результат - повышение термостойкости и снижение теплопроводности многослойной конструкции теплового экрана. Тепловой экран содержит внутреннюю обечайку (1) в виде сборного каркаса, фасонные детали (2) которого состоят из дощечек (4), соединенных между собой крепежными кольцами 5 и шпильками 6 с образованием цилиндрической стенки (7) с замкнутой поверхностью (3) из четырех слоев композиционного углеродного материала, и характеризуется термостойкостью в инертной среде 2500-3000°C. Каждый последующий слой внутренней обечайки (1) выполнен плотно прилегающим к предыдущему с возможностью создания жесткой конструкции. Первый внутренний слой (8) выполнен термостойким из композиционного углерод-углеродного материала с плотностью 1,8-1,9 г/см. Второй слой (9) выполнен защитно-предохранительным из терморасширенного графита. Третий слой (10) выполнен теплоизоляционным из нетканого высокопористого углеродного войлока с поверхностной плотностью 80-120 г/м. Четвертый слой (11) выполнен конструкционным из графитированной углеродной ткани с поверхностной плотностью 1000-1200 г/м.The invention relates to the field of power engineering and is intended for use in high-temperature vacuum electric furnaces. The technical result is an increase in heat resistance and a decrease in thermal conductivity of the multilayer thermal shield design. The heat shield contains the inner shell (1) in the form of a precast frame, shaped parts (2) which consist of plates (4) interconnected by fastening rings 5 and studs 6 with the formation of a cylindrical wall (7) layers of composite carbon material, and is characterized by heat resistance in an inert environment of 2500-3000 ° C. Each subsequent layer of the inner shell (1) is made tightly adjacent to the previous one with the ability to create a rigid structure. The first inner layer (8) is made of heat-resistant composite carbon-carbon material with a density of 1.8-1.9 g / cm. The second layer (9) is made of protective and thermally expanded thermal graphite. The third layer (10) is made of heat insulating nonwoven highly porous carbon felt with a surface density of 80-120 g / m. The fourth layer (11) is made of graphitized carbon fabric with a surface density of 1000-1200 g / m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA201700568A EA030577B1 (en) | 2017-10-26 | 2017-10-26 | Carbon-carbon heat screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA201700568A EA030577B1 (en) | 2017-10-26 | 2017-10-26 | Carbon-carbon heat screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EA201700568A1 true EA201700568A1 (en) | 2018-08-31 |
| EA030577B1 EA030577B1 (en) | 2018-08-31 |
Family
ID=63287017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA201700568A EA030577B1 (en) | 2017-10-26 | 2017-10-26 | Carbon-carbon heat screen |
Country Status (1)
| Country | Link |
|---|---|
| EA (1) | EA030577B1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11278817A (en) * | 1998-03-27 | 1999-10-12 | Nippon Carbon Co Ltd | Production of plural thin-walled cylindrical bodies of carbon fiber-reinforced carbon material |
| FR2818666B1 (en) * | 2000-12-27 | 2004-02-06 | Snecma Moteurs | PROTECTION OF A BOWL OF CARBON MATERIAL, IN PARTICULAR OF A C / C COMPOSITE, FOR RECEIVING A CRUCIBLE, SUCH AS A SILICA CRUCIBLE FOR DRAWING SILICON |
| JP4774355B2 (en) * | 2006-08-31 | 2011-09-14 | 東洋炭素株式会社 | Protective sheet for crucible and melting apparatus |
| WO2011106580A2 (en) * | 2010-02-26 | 2011-09-01 | Morgan Advanced Materials And Technology Inc. | Carbon-based containment system |
| CN202041084U (en) * | 2011-04-26 | 2011-11-16 | 湖南金博复合材料科技有限公司 | Carbon/carbon composite material thermal insulation cylinder |
-
2017
- 2017-10-26 EA EA201700568A patent/EA030577B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EA030577B1 (en) | 2018-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AM KZ TM |