DE408878C - Process for the production of fire- and heat-safe electrical insulating materials - Google Patents

Process for the production of fire- and heat-safe electrical insulating materials

Info

Publication number
DE408878C
DE408878C DEB111790D DEB0111790D DE408878C DE 408878 C DE408878 C DE 408878C DE B111790 D DEB111790 D DE B111790D DE B0111790 D DEB0111790 D DE B0111790D DE 408878 C DE408878 C DE 408878C
Authority
DE
Germany
Prior art keywords
insulating materials
fire
heat
production
electrical insulating
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
Application number
DEB111790D
Other languages
German (de)
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.)
A BUELTEMANN DR
Original Assignee
A BUELTEMANN DR
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 A BUELTEMANN DR filed Critical A BUELTEMANN DR
Priority to DEB111790D priority Critical patent/DE408878C/en
Application granted granted Critical
Publication of DE408878C publication Critical patent/DE408878C/en
Expired legal-status Critical Current

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Classifications

    • 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
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00637Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
    • 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
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/90Electrical properties
    • C04B2111/92Electrically insulating materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

Verfahren zur Herstellung feuer- und wärmesicherer elektrischer Isolierstoffe. Zusatz zum Patent 394933 Im Hauptpatent ist ein Verfahren beschrieben, nach welchem aus gepulverten Schmelzkörpern (Pech) und hydraulisch abbindenden Massen feuer- und wärmesichere elektrische Isolierkörper hergestellt werden.Process for the production of fire- and heat-safe electrical insulating materials. Addition to the patent 394933 In the main patent, a method is described according to which made of powdered melting bodies (pitch) and hydraulically setting masses of fire-resistant and heat-proof electrical insulating bodies are manufactured.

Nach dem vorliegenden Verfahren beschränkt sich die Erzielung elektrisch isolierender Eigenschaften auf Grund jenes Verfahrens nicht nur auf die Verarbeitung von gepulvertem Pech mit hydraulisch erstarrenden Körpern, sondern es ist möglich, unter Verwendung beliebiger elektrisch nichtleitender Bindemittel zu elektrisch isolierenden feuer- und wärmesicheren Körpern zu gelangen.According to the present method, the achievement is limited electrically insulating properties due to this process not only affect processing of powdered pitch with hydraulically solidifying bodies, but it is possible to electrical using any electrically non-conductive binder insulating fire and heat-proof bodies.

Hierbei ist es nach dem vorliegenden Verfahren gleichgültig, ob das oder die Bindemittel, welche nach der Erhärtung des Zements dessen Poren durchdringen und das Zementkorn umkleiden sollen, der anzumachenden Masse in fester, flüssiger oder gelöster Form beigegeben werden. Auch können den hydraulisch erstarrenden Massen Körper zugemischt werden, die entweder gleich bei der Vermischung oder später bei der -Erwärmung Stoffe abscheiden, die elektrisch isolieren und sich im abgebundenen Zement um das Zementkörnchen herumlegen.According to the present procedure, it does not matter whether the or the binding agents which penetrate the pores of the cement after it has hardened and to coat the grain of cement, the mass to be made in solid, liquid form or added in dissolved form. Also can the hydraulically solidifying masses Bodies are mixed in, either immediately when mixing or later when The warming-up separates substances that isolate electrically and are bound in the set Lay cement around the cement granule.

Man hat mit Hilfe solcher Stoffe früher schon versucht, elektrische Isoliermassen zu erhalten. Daß dies nicht gelungen ist, liegt daran, weil man nicht auf die Art, wie das elektrische Feld auf die Dielektrika einwirkt, Rücksicht nahm.With the help of such substances, attempts have been made in the past to create electrical To obtain insulating compounds. That this did not succeed is because one did not took into account the way in which the electric field acts on the dielectrics.

Beispiel: Um aus bestimmten Wachs- oder Harzsorten mit Zement einen elektrischen Isolierstoff herzustellen, macht man eine ammoniakalisch-wässerige oder alkoholisch-wässerige Lösung oder Suspension mit dem Zement an. Dabei kann man Fasern, wie z. B. Asbest, sowie andere Stoffe, wie z. B. Quarzpulver, hinzufügen. Wird durch derartige Zusätze die Mischung sehr mager, so ist oft die Anwendung von Druck auf die angemachte Masse von Vorteil.Example: To make a. From certain types of wax or resin with cement To produce electrical insulating material, one makes an ammoniacal-watery one or alcoholic-aqueous solution or suspension with the cement. Here can fibers such as B. asbestos, as well as other substances such. B. Add quartz powder. If the mixture becomes very lean as a result of such additives, then it is often necessary to use Pressure on the prepared mass is an advantage.

Nach der Erhärtung des Körpers wird. jetzt in der Weise vorgegangen, daß man zunächst auf ungefähr 5o° C erwärmt, um die Hydratation des Zements zu beschleunigen. Dann geht man stufenweise mit der Temperatur in die Höhe und verjagt Ammoniak bzw. Alkohol, so daß sich Wachs bzw. Harz ausscheiden. Dies kann z. B. bei tiefgehaltener Temperatur vorteilhaft im Vakuum geschehen. Ebenso die nächste Stufe, die Verjagung von Wasser.After the body has hardened. now proceeded in the manner that one first warms to about 50 ° C in order to accelerate the hydration of the cement. Then you gradually go up with the temperature and chase away ammonia or Alcohol, causing wax or resin to separate out. This can e.g. B. at low Temperature advantageously done in a vacuum. Likewise the next level, the chase of water.

Aus dem Zement ist jetzt infolge der Erwärmung und des darauffolgen.den entwässerten Zustandes ein hartes, festes Steingerippe geworden. Nunmehr hat die Schmelztemperatur des Bindemittels einzusetzen, welches das gegen Feuchtigkeit stark empfindliche Zementkorn nach der Schmelzung dauernd schützend umgibt.The cement is now due to the warming and the ensuing dehydrated State has become a hard, solid stone frame. Now the melting temperature of the binder has to be used, which is against Permanently protecting cement grains, which are very sensitive to moisture, after melting surrounds.

Würde man das neue Verfahren der Stufenerwärmung nicht anwenden, so reißt der Zement, die völlige Umkleidung mit dein Bindemittel gelingt nicht und die elektrische Isolation kommt nicht zustande.If the new method of step heating was not used, so if the cement cracks, the complete coating with your binder does not succeed and the electrical insulation is not achieved.

Benutzt man andere Bindemittel, z. B. Teerwasser, öle, Lacke u. dgl., so hat man das Stufenverfahren sinngemäß stets so anzuwenden, daß die isolierenden Stoffe auf die entwässerte Zementschicht niedergeschlagen werden.If other binders are used, e.g. B. tar water, oils, paints, etc., so you always have to apply the step process in such a way that the isolating Substances are deposited on the drained cement layer.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung elektrischer Isolierstoffe aus hydraulisch abbindenden Körpern und beigemischten isolierenden Schmelzmitteln nach Patent 394933, dadurch gekennzeichnet, daß die beigemischten isolierenden Stoffe feste, flüssige oder gelöste Nichtleiter sind, die durch stufenweise Trocknung oder Erwärmung auf der Zementmasse niedergeschlagen werden. PATENT CLAIM: Process for the production of electrical insulating materials from hydraulically setting bodies and admixed insulating melting agents according to patent 394933, characterized in that the admixed insulating materials are solid, liquid or dissolved non-conductors which are deposited on the cement mass by drying or heating in stages.
DEB111790D 1923-11-20 1923-11-20 Process for the production of fire- and heat-safe electrical insulating materials Expired DE408878C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB111790D DE408878C (en) 1923-11-20 1923-11-20 Process for the production of fire- and heat-safe electrical insulating materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB111790D DE408878C (en) 1923-11-20 1923-11-20 Process for the production of fire- and heat-safe electrical insulating materials

Publications (1)

Publication Number Publication Date
DE408878C true DE408878C (en) 1925-01-27

Family

ID=6993035

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB111790D Expired DE408878C (en) 1923-11-20 1923-11-20 Process for the production of fire- and heat-safe electrical insulating materials

Country Status (1)

Country Link
DE (1) DE408878C (en)

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