DE3213951C2 - Method of manufacturing a ceramic fiber insulating body - Google Patents
Method of manufacturing a ceramic fiber insulating bodyInfo
- Publication number
- DE3213951C2 DE3213951C2 DE3213951A DE3213951A DE3213951C2 DE 3213951 C2 DE3213951 C2 DE 3213951C2 DE 3213951 A DE3213951 A DE 3213951A DE 3213951 A DE3213951 A DE 3213951A DE 3213951 C2 DE3213951 C2 DE 3213951C2
- Authority
- DE
- Germany
- Prior art keywords
- ceramic fiber
- layer
- layers
- ceramic
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/522—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
- B32B19/06—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers being fibrous or filamentary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/105—Ceramic fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Thermal Insulation (AREA)
Abstract
Um einen Keramikfaserisolierstoffkörper, bestehend aus zwei aneinander angeordneten, miteinander verankerten Keramikfaserschichten zueinander unterschiedlicher Eigen schaf ten, dahingehend zu verbessern, daß unter Beibehaltung der beim Stand der Technik bereits erreichten Vorteile darüber hinaus eine Vereinfachung und Verbesserung der Verbindung der beiden Keramikfaserschichten erreichbar ist, die auch eine preiswertere Herstellung ergibt, sind als Anker die miteinander stoffschlüssig verfilzten Fasern beider Keramikfaserschichten (1, 2) vorgesehen.In order to improve a ceramic fiber insulation body consisting of two mutually anchored ceramic fiber layers of mutually different properties in such a way that, while maintaining the advantages already achieved in the prior art, a simplification and improvement of the connection of the two ceramic fiber layers can also be achieved results in a more economical production, the cohesively matted fibers of both ceramic fiber layers (1, 2) are provided as anchors.
Description
33
Dichte formt und dann letztere beim Formen der zwei- geringere Verdichtung der Grenzzone der ersten Keraten Keramikfaserschicht höher verdichtet mikfasers=hicht 1 kann durch vorübergehende Reduzie-Density forms and then the latter when forming the two-lower compression of the boundary zone of the first kerates Ceramic fiber layer with higher density microfiber = layer 1 can be reduced by temporary reduction
Zur weiteren Verbesserung der Verklammerung bei- rung des Vakuums beim Absaugen der Schlammeflüsder Keramikfaserschichten miteinander ist es vorteil- sigkeit erreicht werden.To further improve the interlocking of the vacuum when sucking off the sludge fluid Laying ceramic fiber layers together it is advantageous to be achieved.
haft, wie im Anspruch 3 offenbart, zu verfahren. Varian- 5 Zur noch weiteren Erhöhung der Festigkeit tm Verten hierzu kennzeichnen die Ansprüche 4 und 5. bindungsbereich kann man vor dem Anformen derliable to proceed as disclosed in claim 3. Varian- 5 To further increase the strength tm Verten this characterize the claims 4 and 5. binding area can be before the molding of the
Damit die vorbeschriebene Verbindung auch hohen zweiten Keramikfaserschicht 2 die letzterer zugewand-Temperaturwechselbelastungen zu widerstehen ver- te Grenzzone der ersten Keramikfaserschicbt t, zum mag, ist es vorteilhaft, wenn man die Dicken der ersten Beispiel unter Zuhilfenahme eines Werkzeuges auflok- und der zweiten Keramikfaserschicht, die zueinander io kern.So that the above-described connection also high second ceramic fiber layer 2, the latter facing thermal shock loads to withstand verte boundary zone of the first ceramic fiber layer t, for like, it is advantageous to unlock the thicknesses of the first example with the help of a tool. and the second ceramic fiber layer which cores to each other.
unterschiedliche Wärmeleitfähigkeit und temperaturab- Als besonders vorteilhaft hat es sich erwiesen, wenndifferent thermal conductivity and temperature-dependent It has proven to be particularly advantageous if
hängige Schwindungen haben, derart vorwählt, daß bei man zur Auflockerung der Deckschicht der Keramikfa-Betriebstemperatur in d^r Grenzzone beider Keramik- serschicht 1 die Deckschicht abreißt faserschichten die Temperatur erreicht wird, bei wel- Mit dem erfindungsgemäßen Verfahren ist es auchpending shrinkages have preselected in such a way that when you loosen the top layer of the ceramic operating temperature The top layer tears off in the boundary zone of the two ceramic layers 1 fiber layers the temperature is reached at which it is also with the method according to the invention
eher beide Keramikfaserschichten zumindest annä- 15 möglich, mehr als zwei in ihren Eigenschaften (Tempehernd gleiche Schwindungsgrade aufweisen. raturfestigkeit, Wärmeleitzahl und/oder temperaturab-rather both ceramic fiber layers at least approximately 15 possible, more than two in their properties (tempehing have the same degree of shrinkage. strength, coefficient of thermal conductivity and / or temperature
Hier-durch sind durch unterschiedliche Schwindungen hängige Schwindung) unterschiedliche Keramikfaserbedingte Spannungen und daraus sich ergebende Scher- schichten aufweisende Keramikfaserisolierstoffkörper belastungen im Bereich der Grenzzone der beiden Ke- herzustellen, wobei letztere jeweils über ihre gesamte ramikfaserschichten a priori abschließbar, woraus eine 20 Dicke vorzugsweise eine gleich'hohi Üichte aufweisen.As a result, due to different shrinkages, dependent shrinkage) are caused by different ceramic fiber Ceramic fiber insulating bodies having stresses and the resulting shear layers loads in the area of the border zone of the two Ke- establish, with the latter in each case over their entire Ramic fiber layers can be closed a priori, from which a thickness preferably has an equal density.
noch festere und dauerhaftere Verbindung der beiden even tighter and more permanent connection between the two
Keramikfaserschichten resultiert Hierzu 1 Blatt Zeichnungen Ceramic fiber layers result in 1 sheet of drawings
Die Erfindung wird nachstehend anhand eines Ausführungsbeispieles näher erläutertThe invention is explained in more detail below using an exemplary embodiment
Die Zeichnung zeigt einen Teil eines nach dem Verfahren hergestellten Keramikfaserisolierstoffkörpers im QuerschnittThe drawing shows part of a according to the method produced ceramic fiber insulation body in cross section
Dieser Keramikfaserisolierstoffkörper besteht aus zwei aneinander angeordneten und miteinander unlösbar verankerten Keramikfaserschichten 1 und 2 etwa gleicher Dicke.This ceramic fiber insulation body consists of two ceramic fiber layers 1 and 2 arranged next to one another and permanently anchored to one another, for example same thickness.
Die an der heißen Seite des Keramikfaserisolierkörpers angeordnete Keramikfaserschicht hat eine höhere Warmfestigkeit als die Keramikfaserschicht 2. In die Keramikfaserschicht 1 ist eine elektrische Heizwendel 3 eingebettetThe ceramic fiber layer arranged on the hot side of the ceramic fiber insulating body has a higher one Heat resistance than the ceramic fiber layer 2. An electrical heating coil 3 is located in the ceramic fiber layer 1 embedded
Zwischen beiden über ihre gesamte Fläche miteinander verbundenen Keramikfaserschichten 1 und 2 befindet sich ere Grenzzone 4, in welcher die Fasern beider Keramikfaserschichten 1 und 2 verfilzt sind.Between the two over their entire surface with each other connected ceramic fiber layers 1 and 2 is ere boundary zone 4, in which the fibers of both Ceramic fiber layers 1 and 2 are matted.
Die Keramikfaserschichten 1 und 2 haben noch zueinander unterschiedliche Wärmeleitfähigkeiten und temperaturabhängige Schwindungen.The ceramic fiber layers 1 and 2 still have mutually different thermal conductivities and temperature-dependent ones Shrinkage.
Der Keramikfaserisolierstoffkörper ist durch Urformen aus Keramikfaserschlämme gebildet, wobei aus der in einer Form eingebrachten Keramikfaserschlämmv; die Schlämmeflüssigkeit allmählich abgesaugt wird, und zwar derart, daß zunächst die erste Keramikfaserschicht gebildet wird. Dann wuri auf diese Schicht die Keramikfaserschlämme zur Bildung der zweiten Keramikfaserschicht aufgebracht Alsdann wird die Schlämmeflüssigkeit zur Formung der zweiten Keramikfaserschicht 2 mindestens teilweise durch die erste Keramikfaserschicht so abgesaugt, daß sich die Fasern in den aneinander grenzenden Zonen der Schichten zwangsläufig miteinander verfilzen und stoffschlüssig verbinden.The ceramic fiber insulating material body is formed by molding from ceramic fiber slurry, from which Ceramic fiber slurry introduced in a mold; the slurry liquid is gradually sucked off, and in such a way that the first ceramic fiber layer is formed first. Then the ceramic fiber slurry was applied to this layer applied to form the second ceramic fiber layer. The slurry liquid is then applied for forming the second ceramic fiber layer 2 at least partially through the first ceramic fiber layer sucked so that the fibers in the adjoining zones of the layers inevitably meet one another felted and firmly bonded.
Erst danach wird der so geformte Keramikfaserisolierstoffkörper in bekannter Weise getrocknetOnly then is the ceramic fiber insulating body formed in this way dried in a known manner
Zur intensiven Verkrallung der Fasern beider Keramikfasersehiehten miteinander ist es vorteilhaft, wenn man die der zweiten Keramikfaserschicht zugewandte Grenzzone der Keramikschicht 1 zunächst mit geringer Dichte formt und dann die Schlämmeflüssigkeit zur Formung der zweiten Keramikfaserschicht mindestens teilweise durch die erste Keramikschicht 1 absaugt und dabei sowohl die zwefte. Keramikfaserschicht 2 als auch die an letzterer angrenzende Zone der ersten Keramik- IFor intensive interlocking of the fibers of both ceramic fibers with one another, it is advantageous if the one facing the second ceramic fiber layer Boundary zone of the ceramic layer 1 is first formed with a low density and then the slurry liquid for forming suction of the second ceramic fiber layer at least partially through the first ceramic layer 1 and both the two. Ceramic fiber layer 2 as well as the zone of the first ceramic I adjoining the latter
faserschicht 1 höher verdichtet. Diese vorübergehende, |fiber layer 1 more densely compressed. This temporary, |
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3213951A DE3213951C2 (en) | 1982-04-16 | 1982-04-16 | Method of manufacturing a ceramic fiber insulating body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3213951A DE3213951C2 (en) | 1982-04-16 | 1982-04-16 | Method of manufacturing a ceramic fiber insulating body |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3213951A1 DE3213951A1 (en) | 1983-10-20 |
DE3213951C2 true DE3213951C2 (en) | 1989-08-10 |
Family
ID=6161010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3213951A Expired DE3213951C2 (en) | 1982-04-16 | 1982-04-16 | Method of manufacturing a ceramic fiber insulating body |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3213951C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4123677A1 (en) * | 1991-07-17 | 1993-01-21 | Vaw Ver Aluminium Werke Ag | FIBER MOLDED BODY AND METHOD FOR THE PRODUCTION THEREOF AND USE OF THE MOLDED BODY FOR THE PRODUCTION OF FIBER REINFORCED ALUMINUM CASTING PARTS |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0586587B1 (en) * | 1991-05-13 | 1997-03-26 | Minnesota Mining And Manufacturing Company | Ceramic-ceramic composite filter |
US5196120A (en) * | 1991-05-13 | 1993-03-23 | Minnesota Mining And Manufacturing Company | Ceramic-ceramic composite filter |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2765247A (en) * | 1953-04-14 | 1956-10-02 | Du Pont | Non-woven sheet material |
DE1757318A1 (en) * | 1968-04-25 | 1971-04-22 | Dreyer Heinrich Wilhelm | Mower |
FR1602362A (en) * | 1968-09-12 | 1970-11-16 | ||
US3924040A (en) * | 1974-05-31 | 1975-12-02 | Armstrong Cork Co | Embossed needle-bonded fabric wall coverings |
US4070519A (en) * | 1976-04-27 | 1978-01-24 | Huyck Corporation | High temperature filter fabrics |
FR2484036A1 (en) * | 1980-06-04 | 1981-12-11 | Carpano & Pons | METHOD OF ATTACHING A BRAKE LINING TO ITS SUPPORT, AND BRAKE ELEMENT OBTAINED |
DE8018841U1 (en) * | 1980-07-14 | 1980-10-09 | I.P.U. Ltd., Nassau | COMPOSITE PLATE |
-
1982
- 1982-04-16 DE DE3213951A patent/DE3213951C2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4123677A1 (en) * | 1991-07-17 | 1993-01-21 | Vaw Ver Aluminium Werke Ag | FIBER MOLDED BODY AND METHOD FOR THE PRODUCTION THEREOF AND USE OF THE MOLDED BODY FOR THE PRODUCTION OF FIBER REINFORCED ALUMINUM CASTING PARTS |
Also Published As
Publication number | Publication date |
---|---|
DE3213951A1 (en) | 1983-10-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: KERFA GMBH INDUSTRIEBEHEIZUNGEN, 5820 GEVELSBERG, |
|
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ABICHT, ROLAND, ING.(GRAD.), 5828 ENNEPETAL, DE |
|
8366 | Restricted maintained after opposition proceedings | ||
8305 | Restricted maintenance of patent after opposition | ||
D4 | Patent maintained restricted | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ABICHT, ROLAND, ING.(GRAD.), 5800 HAGEN, DE |