WO2014026821A1 - Bauteilverbindung mit zumindest zwei cfc-komponenten sowie verfahren zur herstellung der bauteilverbindung - Google Patents
Bauteilverbindung mit zumindest zwei cfc-komponenten sowie verfahren zur herstellung der bauteilverbindung Download PDFInfo
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- WO2014026821A1 WO2014026821A1 PCT/EP2013/065203 EP2013065203W WO2014026821A1 WO 2014026821 A1 WO2014026821 A1 WO 2014026821A1 EP 2013065203 W EP2013065203 W EP 2013065203W WO 2014026821 A1 WO2014026821 A1 WO 2014026821A1
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- components
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- cfc
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- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 claims description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 20
- 229910052710 silicon Inorganic materials 0.000 claims description 17
- 239000010703 silicon Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 239000006229 carbon black Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
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- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 239000000835 fiber Substances 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 6
- 230000035882 stress Effects 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- Y10T29/49945—Assembling or joining by driven force fit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/47—Molded joint
- Y10T403/472—Molded joint including mechanical interlock
Definitions
- the invention relates to a component connection with at least two CFC components, which are connected to each other by means of a non-positive or positive connection, and a method for producing such a component connection.
- Component connections between CFC components are generally used in all cases in which CFC components are used as structural elements of machine parts or supporting structures.
- additional stresses such as, in particular, thermal loads, which influence the creep rupture strength of a connection, are added after use due to special environmental conditions.
- CFC components are also used in circulation devices, which are used for redistribution or uniform mixing of a furnace atmosphere in industrial furnaces.
- Such furnaces are used, for example, for carrying out thermal processes in which carbon materials are subjected to pyrolysis or in which a carbonization or graphitization of carbon components takes place.
- the circulating devices used in the process are exposed to considerable thermal stresses, since temperatures of 2 000 ° C. or more are sometimes reached in the furnace atmosphere. Due to these high thermal stresses, it has meanwhile been adopted to use for the circulation devices materials which are characterized by a particularly low coefficient of thermal expansion, so that it is possible to limit thermally induced stresses in the materials used. Due to its high temperature strength and light weight, carbon fiber reinforced carbon (CFC) has been found to be a particularly suitable material as the material of construction for recirculation devices.
- CFC carbon fiber reinforced carbon
- connections between CFC components which are made via a screw connection have, for example, the connecting elements made of CFC or graphite, such as a threaded bolt made of CFC, which is braced by means of graphite nuts with the CFC components intersecting orientations of the fibers of the CFC components and the dacasbo lzens can occur to the occurrence of considerable mechanical stresses in the screw connection.
- One way to prevent such a component failure is to define maintenance intervals depending on the temperature load that occurs, in order to be able to replace the screwed connections if necessary in good time before the component failure. Since carrying out the maintenance or inspection of the circulating devices and in particular with any repairs required a considerable effort is connected, the present invention seeks to further develop especially designed on Ummélzvoriquesen component connections and propose a suitable method for producing such component compounds that permanently positive connection between the CFC components is possible. To solve this problem, the component connection according to the invention has the features of claim 1.
- the component connection is secured by means of a discrete cohesive connection in a connection zone formed between the components.
- this cohesive connection between the CFC components, it is fundamentally irrelevant in which way the production of the cohesive connection is made possible, ie how the relative arrangement of the CFC components required as a prerequisite for achieving the cohesive connection is achieved. In principle, this can be achieved by a non-positive, ie in particular by a prestressed juxtaposition of the CFC components, or even only by a relative arrangement defined by a positive fit of the CFC components. It is particularly advantageous if the integral connection has a silicon-containing bonding material.
- connection zone between the CFC components has a silicon carbide content decreasing with increasing distance from a boundary layer formed between the components, thus ensuring that, on the one hand, a cohesive material securing the integrity of the CFC components Connection is given, on the other hand, however, the cohesive connection is formed locally very limited in order to influence the original material properties of the components as slightly as possible through the connection zone.
- the connecting device can be designed as stertells- device and the cohesive connection is formed between a nut or a bolt head of a threaded bolt of the screw connection device and an adjacent CFC component.
- the cohesive connection is formed in the region of a form-locking connection device, so that therefore the cohesive connection serves to maintain or fix a form fit produced before the cohesive connection is made between the components to be interconnected.
- the circulating device When the component connection is formed on a circulating device for circulating a surrounding atmosphere, the circulating device has a plurality of components which comprise at least one shaft for connecting the circulating device to a drive device, an airfoil carrier connected to the shaft and a plurality of arranged on the airfoil carrier At least the blade airfoil and the airfoils are referred to as CFC airfoils for impinging the atmosphere with a flow impulse. Components formed between which the component connection is formed.
- the inventive method has the features of claim 6.
- the manufacture of the component connection between two CFC components to be joined together is first effected by the production of a non-positive or positive connection. Only then, in the region of a connection zone between the components, is a discrete cohesive connection with a preferably silicon-containing bonding material produced in a connection zone formed between the components.
- a preferably silicon-containing compound material is externally applied to the connection zone of the components to be interconnected to produce the cohesive connection, and Subsequently, a melting of the connecting material takes place. It has proven to be particularly advantageous if the compound material is applied as a paste of polyvinyl alcohol and silicon powder, with a proportion of 30 to 60 percent by weight of silicon.
- Fig. 1 circulating device in a first embodiment in an isometric view
- FIG. 2 shows the circulating device shown in FIG. 1 in plan view
- FIG. 3 shows the circulating device shown in FIG. 2 in a sectional view according to section line III-III in FIG. 2;
- FIG. 3 shows the circulating device shown in FIG. 2 in a sectional view according to section line III-III in FIG. 2;
- FIG. 4 shows a further embodiment of a circulating device in an isometric view; the circulating device shown in Figure 4 in plan view.
- FIG. 6 shows the circulating device shown in FIG. 5 in a sectional view according to section line VI-VI in FIG. 5;
- FIG. 7 shows an enlarged detailed illustration of a screw connection device on the circulating device shown in FIG. 1;
- FIG. 6 shows the circulating device shown in FIG. 5 in a sectional view according to section line VI-VI in FIG. 5;
- FIG. 7 shows an enlarged detailed illustration of a screw connection device on the circulating device shown in FIG. 1;
- FIG. 8 shows a side view of a spring element used in the screw connection device shown in FIG. 7;
- FIG. 9 shows a further embodiment of a spring element for a screw connection device in an isometric view
- FIG. 10 shows an alternative embodiment of a screw connection device to the screw connection device shown in FIG. 7 with a connection material applied to the connection region between the components of the screw connection device;
- FIG. 11 shows the screw connection device shown in FIG. 10 after local welding of the components coated with the connection material
- FIG. 12 shows an enlarged detailed representation of a screw connection device on the circulation device illustrated in FIG. 6.
- FIG. 1 shows in a first embodiment a circulating device 20 with a shaft 21 for connecting the circulating device 20 to a drive device, not shown here, and a rotatably connected to the shaft 21 blade carrier 22, which distributes the arrangement of a plurality over the circumference of the airfoil 22 arranged blades 23 serves.
- the blades 23 are received between the blade carrier 22 and a conical end ring 24 and this j eweils via form-fitting connections 25 and 26 with their axial ends 27, 28 in slot-shaped recesses 29 of the blade carrier 22 and the end ring 24 is inserted.
- a plurality of screw connection devices 3 1 arranged concentrically with respect to a central axis 30 of the circulating device 20 are provided for connecting the shaft 21 to the blade carrier 22.
- the shaft 21 has an axial
- a threaded bolt 36 penetrates through holes 37, 38 in the flange 34 and in the blade carrier 22 and at its opposite axial ends 39, 40 j each provided with a nut 41.
- a beam spring element 42 is arranged between the flange ring 34 and the nut 41 arranged at the lower axial end 40 of the threaded bolt 36.
- the beam spring element 42 has a spring bar 44 which is supported with axial ends on support legs 43 and which is provided with a passage opening 45 for the passage of the threaded bolt 36.
- the beam spring element 42 is formed as a CFC component with a fiber orientation 46 which extends in the region of the cantilever 44 in the direction of a loading axis 47 extending between the support feet 43, so that at
- the screw connection means 3 1 or the threaded bolt 36 of the screw connection means can be loaded with a sufficiently large biasing force, so that even if there are settling phenomena, in particular perpendicular to the fiber orientation 46 in the porous carbon material of the clamped together under biasing force components components should, these can be compensated by the elasticity of the Balkenfeder- element 42, and over the screw connection means 3 1 clamped together components still abut with sufficient force against each other to effectively prevent relative movement of the components.
- a shaft 5 1 is connected to a blade carrier 54 by means of a connecting piece 53 arranged at an axial connection end 52 of the shaft 5 1.
- airfoils 55 are received between the airfoil support 54 and a closing ring 56 which, as shown in FIG. 6, is designed as a flat annular disk 57 with an annular web 59 integrally formed on an inner circumference 58 of the annular disk 57.
- a closing ring 56 which, as shown in FIG. 6, is designed as a flat annular disk 57 with an annular web 59 integrally formed on an inner circumference 58 of the annular disk 57.
- End ring 56 penetrate and at their free axial ends 65th each with a nut 66, which is preferably made of graphite, is provided.
- screw connecting devices 67 are provided which have no beam spring element 42. Instead of a Balkenfederelements 42 have the
- Screw connection 67 a complementary cohesive connection 68 which, as shown in Fig. 12, in a connection zone 69 between the nut 66 and the disc ring 57 of the end ring 56 is formed.
- Gewindebo lzen 70 passed through a central through hole 71 and at its free axial end 72 with a disk nut 73 is provided, which together with the threaded bolt 70 a fferitatisein- device 74 for connecting the shaft 5 1 allows the blade carrier 54.
- the screw connection device 74 is also provided with an annular spring element 75, which is shown in FIG. 9 as a single part and, as shown in FIG. 6, is arranged between an underside 76 of the airfoil carrier 54 and the connecting piece 53.
- the connecting piece 53 designed as a graphite part in the case of the present exemplary embodiment is torsionally rigidly connected to the tubular shaft 5 1 via pin connections 77.
- the annular spring element 75 on a spring ring 85 has two opposing axial surfaces 78, 79, which are in each case provided with circumferentially distributed support feet 80.
- the support feet 80 are arranged so that in each case one arranged on an upper axial surface 78 Stützffurfur between two on the lower
- the ringfeed Derelement 75 is formed as a CFC component with a fiber orientation 8 1, which, as indicated in Fig. 9, in the direction of extending between the support legs 80 of the annular spring element 75 load axis 82 extends.
- the elastic resilience of the annular spring element 75 enables a compensation of settling phenomena in the screw connection device 74.
- Screw connection device is used.
- the coating of the screw connection device 3 1 is initially performed in the region of the intended connection zone 69 (FIG. 11)
- a bonding material 83 which is applied in the present case as a pasty material and consists essentially of polyvinyl alcohol l with a weight fraction of 50% silicon powder.
- connection zone 69 which has a decreasing silicon carbide content with increasing distance from an interface layer 84 formed between the components.
- carbide formers such as metals
- silicon which serves as carbide formers in the above-described embodiment.
- special titanium, tantalum or chromium to produce metal carbides in the connection zone or to use other semiconductors than silicon, such as boron.
- the silicon is added to carbon black, the silicon is in a special way as Carbidbildner since the occurrence of free silicon in the
- Connection zone can be largely limited by the addition of carbon black, so as to obtain a connection zone that allows a thermally stable material behavior over a wide temperature range.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Optics & Photonics (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020157001654A KR20150042777A (ko) | 2012-08-13 | 2013-07-18 | 적어도 2개의 cfc 컴포넌트를 포함하는 컴포넌트 접속 및 상기 컴포넌트 접속을 생성하기 위한 방법 |
US14/420,729 US20150204364A1 (en) | 2012-08-13 | 2013-07-18 | Component connection comprising at least two cfc components and method for producing said component connection |
EP13750650.7A EP2882700A1 (de) | 2012-08-13 | 2013-07-18 | Bauteilverbindung mit zumindest zwei cfc-komponenten sowie verfahren zur herstellung der bauteilverbindung |
CN201380043343.XA CN104583155A (zh) | 2012-08-13 | 2013-07-18 | 包括至少两个cfc 构件的构件连接件和用于生产该构件连接件的方法 |
CA2878499A CA2878499A1 (en) | 2012-08-13 | 2013-07-18 | Component connection comprising at least two cfc components and method for producing said component connection |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012214406.4 | 2012-08-13 | ||
DE102012214406.4A DE102012214406A1 (de) | 2012-08-13 | 2012-08-13 | Bauteilverbindung mit zumindest zwei CFC-Komponenten sowie Verfahren zur Herstellung der Bauteilverbindung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014026821A1 true WO2014026821A1 (de) | 2014-02-20 |
Family
ID=49000907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/065203 WO2014026821A1 (de) | 2012-08-13 | 2013-07-18 | Bauteilverbindung mit zumindest zwei cfc-komponenten sowie verfahren zur herstellung der bauteilverbindung |
Country Status (7)
Country | Link |
---|---|
US (1) | US20150204364A1 (de) |
EP (1) | EP2882700A1 (de) |
KR (1) | KR20150042777A (de) |
CN (1) | CN104583155A (de) |
CA (1) | CA2878499A1 (de) |
DE (2) | DE202012013596U1 (de) |
WO (1) | WO2014026821A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170268101A1 (en) * | 2016-03-18 | 2017-09-21 | Goodrich Corporation | Method and apparatus for decreasing the radial temperature gradient in cvi/cvd furnaces |
Citations (3)
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US5022803A (en) * | 1990-05-25 | 1991-06-11 | General Dynamics Corporation, Convair Division | Pin type carbon-carbon fastener |
DE4438456A1 (de) * | 1994-10-28 | 1996-05-02 | Deutsche Forsch Luft Raumfahrt | Reibeinheit |
DE102005042870B3 (de) * | 2005-09-08 | 2007-04-26 | Astrium Gmbh | Verfahren zur Herstellung silizierter Formkörper |
Family Cites Families (9)
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JPS55163702A (en) * | 1979-06-07 | 1980-12-20 | Tokai Konetsu Kogyo Kk | Method of adhering with heat resistance and conductance |
US5021107A (en) * | 1988-01-19 | 1991-06-04 | Holko Kenneth H | Process for joining or coating carbon-carbon composite components |
DE3907913A1 (de) * | 1989-03-11 | 1990-09-27 | Bayer Ag | Graphitkleber und verfahren zur herstellung von klebeverbindungen zwischen graphitteilen |
DE3910674C1 (de) * | 1989-04-03 | 1990-09-20 | Schmetz Gmbh & Co Kg Unternehmensverwaltung, 5750 Menden, De | |
JPH0813713B2 (ja) * | 1990-10-11 | 1996-02-14 | 東芝セラミックス株式会社 | SiC被覆C/C複合材 |
US5972157A (en) * | 1995-11-20 | 1999-10-26 | Alliedsignal Inc. | Joining of rough carbon-carbon composites with high joint strength |
DE19708825C2 (de) * | 1997-03-05 | 2001-11-15 | Deutsch Zentr Luft & Raumfahrt | Vorrichtung zum Fördern eines Mediums |
DE19711829C1 (de) * | 1997-03-21 | 1998-09-03 | Daimler Benz Ag | Verfahren zur Herstellung einer faserverstärkten Verbundkeramik |
EP2678153A4 (de) * | 2011-02-24 | 2015-07-08 | Toray Industries | Verstärkte zwischenschicht und verbundene strukturen daraus |
-
2012
- 2012-08-13 DE DE202012013596.1U patent/DE202012013596U1/de not_active Expired - Lifetime
- 2012-08-13 DE DE102012214406.4A patent/DE102012214406A1/de not_active Withdrawn
-
2013
- 2013-07-18 CN CN201380043343.XA patent/CN104583155A/zh active Pending
- 2013-07-18 US US14/420,729 patent/US20150204364A1/en not_active Abandoned
- 2013-07-18 WO PCT/EP2013/065203 patent/WO2014026821A1/de active Application Filing
- 2013-07-18 EP EP13750650.7A patent/EP2882700A1/de not_active Withdrawn
- 2013-07-18 CA CA2878499A patent/CA2878499A1/en not_active Abandoned
- 2013-07-18 KR KR1020157001654A patent/KR20150042777A/ko not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5022803A (en) * | 1990-05-25 | 1991-06-11 | General Dynamics Corporation, Convair Division | Pin type carbon-carbon fastener |
DE4438456A1 (de) * | 1994-10-28 | 1996-05-02 | Deutsche Forsch Luft Raumfahrt | Reibeinheit |
DE102005042870B3 (de) * | 2005-09-08 | 2007-04-26 | Astrium Gmbh | Verfahren zur Herstellung silizierter Formkörper |
Non-Patent Citations (1)
Title |
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See also references of EP2882700A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170268101A1 (en) * | 2016-03-18 | 2017-09-21 | Goodrich Corporation | Method and apparatus for decreasing the radial temperature gradient in cvi/cvd furnaces |
US10407769B2 (en) * | 2016-03-18 | 2019-09-10 | Goodrich Corporation | Method and apparatus for decreasing the radial temperature gradient in CVI/CVD furnaces |
US11332823B2 (en) | 2016-03-18 | 2022-05-17 | Goodrich Corproation | Method and apparatus for decreasing the radial temperature gradient in CVI/CVD furnaces |
Also Published As
Publication number | Publication date |
---|---|
CN104583155A (zh) | 2015-04-29 |
DE202012013596U1 (de) | 2018-03-05 |
DE102012214406A1 (de) | 2014-02-13 |
US20150204364A1 (en) | 2015-07-23 |
CA2878499A1 (en) | 2014-02-20 |
EP2882700A1 (de) | 2015-06-17 |
KR20150042777A (ko) | 2015-04-21 |
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