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DE1814052B2 - THERMAL INSULATION ARRANGEMENT MADE OF CARBON - Google Patents
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DE1814052B2 - THERMAL INSULATION ARRANGEMENT MADE OF CARBON - Google Patents

THERMAL INSULATION ARRANGEMENT MADE OF CARBON

Info

Publication number
DE1814052B2
DE1814052B2 DE19681814052 DE1814052A DE1814052B2 DE 1814052 B2 DE1814052 B2 DE 1814052B2 DE 19681814052 DE19681814052 DE 19681814052 DE 1814052 A DE1814052 A DE 1814052A DE 1814052 B2 DE1814052 B2 DE 1814052B2
Authority
DE
Germany
Prior art keywords
layers
sheets
graphite
carbon
carbon felt
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.)
Granted
Application number
DE19681814052
Other languages
German (de)
Other versions
DE1814052A1 (en
Inventor
Peter-Ludwig Dipl.-Ing. Dr. 8901 Meitingen Reiser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sigri GmbH
Original Assignee
Sigri Elektrograhit GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sigri Elektrograhit GmbH filed Critical Sigri Elektrograhit GmbH
Priority to DE19681814052 priority Critical patent/DE1814052B2/en
Priority to AT1056969A priority patent/AT297571B/en
Priority to CH1686969A priority patent/CH499743A/en
Priority to NL6918318A priority patent/NL6918318A/xx
Priority to SE17035/69A priority patent/SE346847B/xx
Priority to GB60404/69A priority patent/GB1223080A/en
Priority to JP44099093A priority patent/JPS4915592B1/ja
Priority to BE742986D priority patent/BE742986A/xx
Priority to FR6942968A priority patent/FR2025904A1/fr
Publication of DE1814052A1 publication Critical patent/DE1814052A1/en
Publication of DE1814052B2 publication Critical patent/DE1814052B2/en
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C11/00Shielding structurally associated with the reactor
    • G21C11/08Thermal shields; Thermal linings, i.e. for dissipating heat from gamma radiation which would otherwise heat an outer biological shield ; Thermal insulation
    • G21C11/086Thermal shields; Thermal linings, i.e. for dissipating heat from gamma radiation which would otherwise heat an outer biological shield ; Thermal insulation consisting of a combination of non-metallic and metallic layers, e.g. metal-sand-metal-concrete
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053Details of the reactor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B18/00Layered products essentially comprising ceramics, e.g. refractory products
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/02Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/08Means for preventing radiation, e.g. with metal foil
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/001Thermal insulation specially adapted for cryogenic vessels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049Controlling or regulating processes
    • B01J2219/00051Controlling the temperature
    • B01J2219/0015Controlling the temperature by thermal insulation means
    • B01J2219/00155Controlling the temperature by thermal insulation means using insulating materials or refractories
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567Treatment time
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658Atmosphere during thermal treatment
    • C04B2235/6581Total pressure below 1 atmosphere, e.g. vacuum
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32Ceramic
    • C04B2237/36Non-oxidic
    • C04B2237/363Carbon
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0304Thermal insulations by solid means
    • F17C2203/0308Radiation shield
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Civil Engineering (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Plasma & Fusion (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)
  • Thermal Insulation (AREA)

Description

25 Abstandshalter aus Kohlenstoff, insbesondere Elektrographit, anordnen.Arrange 25 spacers made of carbon, in particular electrographite.

Naturgemäß können die erfindungsgemäßen Wär-Naturally, the inventive heat

Die vorliegende Erfindung betrifft eine im Va- meisolationsanordnungen bei Temperaturen überThe present invention relates to thermal insulation assemblies at temperatures above

kuum oder Schutzgas angeordnete Wärmeisolierung 500° C nur unter Vakuum oder Schutzgas verwendetThermal insulation 500 ° C arranged under vacuum or protective gas is only used under vacuum or protective gas

aus Kohlenstoff mit mindestens einer Isolierschicht 30 werden, da sonst der Kohlenstoff verbrennen würde,made of carbon with at least one insulating layer 30, otherwise the carbon would burn,

aus Kohlenstoffilz für Temperaturen bis über In nicht oxydierender Atmosphäre lassen sich die er-made of carbon felt for temperatures above. In a non-oxidizing atmosphere, the

3000° C. findungsgemäßen Wärmeisolationsanordnungen bis3000 ° C. inventive heat insulation arrangements up to

Es ist bekannt, Kohlenstoffilze für Zwecke der zu Temperaturen von über 3000° C anwenden, ohne thermischen Isolation einzusetzen, sofern der Kohlen- daß zerstörende Reaktionen innerhalb der Isolationsstoff durch Vakuum- oder Schutzgasbetrieb vor Oxy- 35 anordnungen auftreten würden, wie dies beispielsdation geschützt wird. Bei sehr hohen Temperaturen weise bei Kombinationen mit anderen keramischen sinkt jedoch infolge des steigenden Strahlungsanteils Materialien der Fall wäre,
die Isolationswirkung der porösen Filze. In den Figuren sind zwei Ausführungsbeispiele er-
It is known to use carbon felts for the purpose of temperatures of over 3000 ° C without using thermal insulation, provided that the carbon that destructive reactions would occur within the insulation material by vacuum or protective gas operation from Oxy- 35 arrangements, as this is protected by example . At very high temperatures, in combinations with other ceramic materials, however, the increasing proportion of radiation would reduce the materials,
the insulating effect of the porous felts. In the figures, two exemplary embodiments are shown

Es ist weiterhin bekannt, zur Isolation bei sehr ho- findungsgemäßer Wärmeisolationsanordnungen dar-It is also known to provide insulation for very inventive heat insulation arrangements.

hen Temperaturen Strahlungsschilde mit hohem Re- 40 gestellt.High temperatures radiation shields with a high Re- 40.

flexionsvermögen einzusetzen. Als Material hierfür F i g. 1 zeigt eine erste Ausführungsform der erfinwerden in erster Linie Bleche aus Molybdän oder dungsgemäßen Wärmeisolationsanordnung. Es sind Wolfram in Vakuum oder Schutzgas bzw. aus Edel- hier auf einen als Tragkörper dienenden Kohlenstoffmetallen in oxydierenden Atmosphären verwendet. körper 1 vier Lagen aus flexiblen Graphitfolien 2 an-Derartige Bleche aus Molybdän oder Wolfram weisen 45 geordnet, die voneinander durch Abstandshalter 3 jedoch eine Reihe von Nachteilen auf, insbesondere und Zwischenlagen 4 aus Graphitfilz getrennt sind, verspröden sie im Betrieb und haben ein hohes Ge- Über der oberstm Lage der Graphitfolien 2 ist zur wicht. weiteren Versteifung ein weiterer Kohlenstofftragkör-to use flexibility. As a material for this F i g. 1 shows a first embodiment of the invention primarily sheets made of molybdenum or appropriate thermal insulation arrangement. There are Tungsten in a vacuum or inert gas or made of noble here on a carbon metal serving as a support body in oxidizing atmospheres. body 1 four layers of flexible graphite foils 2 an-Such Sheets made of molybdenum or tungsten have 45 in an orderly manner, separated from one another by spacers 3 however, has a number of disadvantages, in particular and intermediate layers 4 made of graphite felt are separated, They become brittle in operation and have a high degree of resistance weight. further stiffening another carbon support body

Der vorliegenden Erfindung liegt die Aufgabe zu- per 5 angeordnet.The object of the present invention is arranged by way of 5.

gründe, die Nachteile der bekannten Wärmeisola- 50 Fig.2 zeigt ein zweites Ausführungsbeispiel derreasons, the disadvantages of the known thermal insulation 50 Fig.2 shows a second embodiment of the

tionsanordnungen zu vermeiden und eine Wärmeiso- Erfindung, bestehend aus einem rohrförmigen Ver-tion arrangements to avoid and a thermal iso- invention, consisting of a tubular connection

lationsanordnung zu schaffen, die sowohl bei hohen bundkörper aus abwechselnden Lagen aus flexiblenTo create a lation arrangement that consists of alternating layers of flexible

wie bei niedrigen Temperaturen eine ausreichende Graphitfolien 2 und Kohlenstoffilzlagen 4.as at low temperatures, sufficient graphite foils 2 and carbon felt layers 4.

Isolationswirkung besitzt. Die Herstellung der verwendeten flexiblen Graphit-Has insulating effect. The manufacture of the flexible graphite

Zur Lösung dieser Aufgabe wird eine Isolier- 55 platten, -blechen oder -folien erfolgt in bekannterTo solve this problem, insulating plates, sheets or foils are made in a known manner

schicht aus Kohlenstoffilz enthaltende Wärmeisola- Weise aus Graphitoxid, das zunächst expandiert undA layer of carbon felt containing thermal insulation made of graphite oxide, which initially expands and

tionsanordnung vorgeschlagen, in der zusätzlich noch dann zusammengepreßt wird.tion arrangement proposed in which is then additionally pressed together.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (4)

ι 2 τ, . .. , ein Wärmeschild aus einer oder mehreren Lagen aus Patentansprüche: flexiblen, aus Graphitoxid hergestellten Graphitplat-ι 2 τ,. .., a heat shield made of one or more layers from patent claims: flexible graphite plate made of graphite oxide 1. Im Vakuum oder Schutzgas angeordnete ten,-blechen oder-folien vorgesehen ist.
Wärmeisolierung aus Kohlenstoff mit mindestens Eine solche Wärmeisolationsanordnung zeichnet einer Isolationsschicht aus Kohlenstoffilz für 5 sich durch geringe Dichte, Temperaturwechselbestän-Temperaturen bis über 3000° C, dadurch ge- digkeit und Fehlen jeglicher Versprödung auch nach kennzeichnet, daß zusätzlich noch ein War- langer Betriebszeit aus. Sie weist sowohl bei hohen meschild aus einer oder mehreren Lagen aus flexi- wie bei niederen Temperaturen eine sehr hohe Isolablen, aus Graphitoxid hergestellten Graphitplat- tionswirkung auf. Vorteilhafterweise werden zwischen ten, -blechen oder -folien vorgesehen ist. io je zwei Lagen aus flexiblen Graphitplatten, -folien
1. In a vacuum or protective gas arranged th, sheets or foils is provided.
Thermal insulation made of carbon with at least one such thermal insulation arrangement is characterized by an insulation layer made of carbon felt for 5 by low density, temperature change resistance temperatures up to over 3000 ° C, characterized by speed and absence of any embrittlement, also after a long operating time . It has a very high insulating effect, made of graphite oxide, of graphite plating effect, both with a high shield consisting of one or more layers of flexible and with low temperatures. Advantageously, between th, sheets or foils is provided. io two layers of flexible graphite sheets and foils each
2. Wärmeisolationsanordnung nach An- oder -blechen je eine Schicht aus Kohlenstoffilz anspruch 1, dadurch gekennzeichnet, daß zwischen geordnet. Darüber hinaus oder statt dessen kann man je zwei Lagen aus flexiblen Graphitplatten, -folien vorteilhafterweise zwischen je zwei Schichten aus oder -blechen je eine Schicht aus Kohlenstoffilz Kohlenstoffilz eine Lage aus flexiblen Graphit anordangeordner ist. i5 nen. Die Verbindung der verschiedenen Lagen aus fle-2. Thermal insulation arrangement according to or sheet metal per a layer of carbon felt claim 1, characterized in that arranged between. In addition or instead of this, two layers of flexible graphite sheets or foils can advantageously be arranged between two layers of or sheets of carbon felt, one layer of flexible graphite, one layer of carbon felt. i 5 nen. The connection of the different layers of fleece 3. Wärmeisolationsanordnung nach Anspruch 1 xiblen Graphit und Kohlenstoffilz erfolgt am einfach- oder 2, dadurch gekennzeichnet, daß zwischen je sten durch Verklebung.3. Heat insulation arrangement according to claim 1 xiblen graphite and carbon felt is carried out on the simple or 2, characterized in that between each most by gluing. zwei Schichten aus Kohlenstoffilz eine Lage aus Zur Erhöhung der mechanischen Festigkeit der ti-two layers of carbon felt one layer of To increase the mechanical strength of the ti- flexiblem Graphit angeordnet ist. findungsgemäßen Wärmeisolationsanordnung kannflexible graphite is arranged. inventive thermal insulation arrangement can 4. Wärmeisolationsanordnung nach einem oder 20 man zusätzlich Tragkörper aus Kohlenstoff, vorzugsmehreren der Ansprüche 1 bis 3, dadurch gekenn- weise aus Elektrographit, verwenden, auf die die erzeichnet, daß die Lagen aus flexiblem Graphit und findungsgemäßen Anordnungen aufgebracht werden. Kohlenstoffilz untereinander verklebt sind. Beispielsweise kann man zwischen die einzelnen Lagen aus flexiblen Graphitplatten, -blechen oder -folien4. Heat insulation arrangement according to one or 20 additional support bodies made of carbon, preferably several of claims 1 to 3, characterized in that they are made of electrographite, on which the that the layers of flexible graphite and inventive arrangements are applied. Carbon felt are glued together. For example, you can choose between the individual layers made of flexible graphite sheets, sheets or foils
DE19681814052 1968-12-11 1968-12-11 THERMAL INSULATION ARRANGEMENT MADE OF CARBON Granted DE1814052B2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE19681814052 DE1814052B2 (en) 1968-12-11 1968-12-11 THERMAL INSULATION ARRANGEMENT MADE OF CARBON
AT1056969A AT297571B (en) 1968-12-11 1969-11-11 Carbon thermal insulation assembly
CH1686969A CH499743A (en) 1968-12-11 1969-11-13 Carbon thermal insulation assembly
NL6918318A NL6918318A (en) 1968-12-11 1969-12-05
SE17035/69A SE346847B (en) 1968-12-11 1969-12-10
GB60404/69A GB1223080A (en) 1968-12-11 1969-12-10 Heat insulating assembly
JP44099093A JPS4915592B1 (en) 1968-12-11 1969-12-11
BE742986D BE742986A (en) 1968-12-11 1969-12-11
FR6942968A FR2025904A1 (en) 1968-12-11 1969-12-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681814052 DE1814052B2 (en) 1968-12-11 1968-12-11 THERMAL INSULATION ARRANGEMENT MADE OF CARBON

Publications (2)

Publication Number Publication Date
DE1814052A1 DE1814052A1 (en) 1970-06-25
DE1814052B2 true DE1814052B2 (en) 1972-09-21

Family

ID=5715925

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681814052 Granted DE1814052B2 (en) 1968-12-11 1968-12-11 THERMAL INSULATION ARRANGEMENT MADE OF CARBON

Country Status (9)

Country Link
JP (1) JPS4915592B1 (en)
AT (1) AT297571B (en)
BE (1) BE742986A (en)
CH (1) CH499743A (en)
DE (1) DE1814052B2 (en)
FR (1) FR2025904A1 (en)
GB (1) GB1223080A (en)
NL (1) NL6918318A (en)
SE (1) SE346847B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820714A1 (en) * 1988-06-18 1989-12-21 Sigri Gmbh Crucible for molten silicon

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1490347A (en) 1974-02-08 1977-11-02 Dunlop Ltd Friction members
FR2309019A1 (en) * 1975-04-21 1976-11-19 Pechiney Ugine Kuhlmann CONTAINMENT TANK FOR MOLTEN SALT NUCLEAR REACTORS
DE3242959C2 (en) * 1981-11-20 1986-02-20 Kabushiki Kaisha Kobe Seiko Sho, Kobe Isostatic hot press device
GB2133862B (en) * 1982-11-01 1986-04-16 Morganite Gmbh A heat resistant pad
FR2573820A1 (en) * 1984-11-28 1986-05-30 Europ Agence Spatiale Improvements to methods for maintaining a given degree of vacuum in the volume of an enclosed space intended to be evacuated in order to provide a high level of thermal insulation, and an arrangement of the enclosed space for implementing this method
JPS61155260A (en) * 1984-12-27 1986-07-14 呉羽化学工業株式会社 Carbon product bonded with carbon materials each other and manufacture
DE4204823A1 (en) * 1992-02-18 1993-08-19 Man Technologie Gmbh Cladding for protective gas oven - has insulation comprising graphite sheets adhered to one another to permit adequate gas through feed
US5414927A (en) * 1993-03-30 1995-05-16 Union Oil Co Furnace elements made from graphite sheets
EP0867413A1 (en) * 1997-03-27 1998-09-30 Alcatel A method for drawing an optical fibre from a glass preform

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820714A1 (en) * 1988-06-18 1989-12-21 Sigri Gmbh Crucible for molten silicon

Also Published As

Publication number Publication date
JPS4915592B1 (en) 1974-04-16
AT297571B (en) 1972-03-27
CH499743A (en) 1970-11-30
DE1814052A1 (en) 1970-06-25
GB1223080A (en) 1971-02-17
SE346847B (en) 1972-07-17
BE742986A (en) 1970-06-11
FR2025904A1 (en) 1970-09-11
NL6918318A (en) 1970-06-15

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Legal Events

Date Code Title Description
SH Request for examination between 03.10.1968 and 22.04.1971
C3 Grant after two publication steps (3rd publication)