DE754840C - Corrosion-resistant coating for electrical, metal-sheathed cables or the like. - Google Patents

Corrosion-resistant coating for electrical, metal-sheathed cables or the like.

Info

Publication number
DE754840C
DE754840C DEA74644D DEA0074644D DE754840C DE 754840 C DE754840 C DE 754840C DE A74644 D DEA74644 D DE A74644D DE A0074644 D DEA0074644 D DE A0074644D DE 754840 C DE754840 C DE 754840C
Authority
DE
Germany
Prior art keywords
corrosion
metal
electrical
resistant coating
sheathed cables
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
DEA74644D
Other languages
German (de)
Inventor
Paul Dr-Ing Nowak
Karl Dipl-Ing Rottsieper
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.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Priority to DEA74644D priority Critical patent/DE754840C/en
Application granted granted Critical
Publication of DE754840C publication Critical patent/DE754840C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806—Protection against damage caused by corrosion

Landscapes

  • Insulated Conductors (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Description

Korrosionsfester Oberzug für elektrische, metallummantelte Kabel od. dgl. Um elektrische, metallummantelte Kabel od. dgl., die in Erde verlegt und dauernd den chemischen Einflüssen des Bodens ausgesetzt sind, gegen Korrosion der Metalloberfläche zu schützen, ist es üblich, Schutzschichten anzuwenden, mit welchen die Metallflächen überzogen sind und die verhindern, daß die chemisch wirksamen Stoffe der Umgebung mit der Metalloberfläche unmittelbar in Berührung kommen. Im allgemeinen umgibt man die Panzerung des Kabels mit einer jutepolsterung, die mit Teer, Bitumen od. dgl. getränkt ist. Muffen oder andere Behälter, beispielsweise Pupinspulenkästen, die in Kabelanlagen verwendet werden, überzieht man im allgemeinen mit einer gegen Korrosion schützenden Schicht.Corrosion-resistant cover for electrical, metal-sheathed cables or Like. To electrical, metal-sheathed cables or the like, which are laid in the ground and permanently are exposed to the chemical influences of the soil, against corrosion of the metal surface To protect, it is common to apply protective layers with which the metal surfaces are coated and prevent the chemically active substances in the environment from reaching come into direct contact with the metal surface. Generally surrounds the armoring of the cable with a jute upholstery covered with tar, bitumen od. Like. Is soaked. Sleeves or other containers, for example pupin coil boxes, that are used in cable systems are generally covered with a counter Corrosion protective layer.

Gemäß der Erfindung wird die Oberfläche der metallischen Kabelmäntel und der Zubehörteile sowie anderer der Witterung bzw. den Einflüssen des Erdbodens unterworfener Gegenstände mit einem gegen Korrosion schützenden Überzug versehen, der unter Verwendung der im folgenden beschriebenen Mischung in an sich bekannter Weise durch Umpressen oder Umspritzen hergestellt wird. Hierbei empfiehlt es sich, folgendermaßen vorzugehen: Etwa 4oo g Polyacrylsäureester werden auf der Mischwalze mit einem Gemenge von etwa 250 g aktiver Kohle (Gasruß) und etwa 350 g Talkum innig vermischt und dann bei ioo bis 12o° C auf den bekannten Gummispritzmaschinen als Schutzschicht (Schutzmantel) um das zu schützende Kabel gespritzt. Die verwendete Mischung kann einen geringen Zusatz eines Alterungsverhütungsmittels, wie ß-Naphthol, erhalten.According to the invention, the surface of the metallic cable sheaths and the accessories as well as other objects subject to the weather or the influences of the ground are provided with a protective coating against corrosion, which is produced using the mixture described below in a known manner by pressing or injection molding will. It is advisable to proceed as follows: About 400 g of polyacrylic acid ester are intimately mixed on the mixing roller with a mixture of about 250 g of active carbon (carbon black) and about 350 g of talc and then at 100 to 120 ° C on the known rubber injection molding machines as a protective layer ( Protective sheath) molded around the cable to be protected. The mixture used can contain a small addition of an anti-aging agent such as β-naphthol.

Die hier angegebene erfindungsgemäße Korrosionsschutzschicht hat die Eigenschaft, daß sie sich den üblichen chemischen Einflüssen der Witterung oder des Erdbodens gegenüber neutral verhält. Darüber hinaus ist sie säurebeständig, ozonfest und ölbeständig und eignet sich daher auch zur Herstellung eines Korrosionsschutzes bei solchen Kabeln, die wie etwa in den Anlagen der chemischen Industrie oder in anderen gewerblichen Räumen außergewöhnlichen chemischen Einflüssen ausgesetzt sind. Ein weiterer Vorteil besteht darin, daß der erfindungsgemäße Überzug nicht hygroskopisch ist; auch sind keinerlei Alterungserscheinungen zu befürchten. Schließlich ist noch zu bemerken, daß die Schutzschicht im Gegensatz zu den meisten bisher zum Zwecke des Korrosionsschutzes verwendeten Mitteln aus inländischen Rohstoffen hergestellt ist.The corrosion protection layer according to the invention specified here has the Property that they are exposed to the usual chemical influences of the weather or of the ground is neutral. In addition, it is acid-resistant, Resistant to ozone and oil and is therefore also suitable for producing corrosion protection in the case of cables that are used, for example, in plants in the chemical industry or in other commercial areas are exposed to extraordinary chemical influences. Another advantage is that the coating according to the invention is not hygroscopic is; there are also no signs of aging to fear. Finally is still to note that the protective layer is contrary to most so far for the purpose The means used to protect against corrosion are made from domestic raw materials is.

Claims (1)

PATENTANSPRUCH: Korrosionsfester Überzug für elektrische, metallummantelte Kabel od. dgl., dadurch gekennzeichnet, daß die äußere, auf dem metallischen Mantel des Kabels aufgebrachte, z. B. aufgespritzte Schutzschicht aus einer :Mischung von etwa 4o Gewichtsteilen Poly acrylsäureester, etwa 25 Gewichtsteilen aktiver Kohle (Gasruß) und etwa 35 Gewichtsteilen Talkum besteht. Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik sind im Erteilungsverfahren, folgende Druckschriften in Betracht gezogen worden: Deutsche Patentschriften Nr. 262 707, 438 222, 554 635, 573 208; französische Patentschriften Nr. 715 96I, 72'5 844; britische Patentschriften Nr. 392 416, 395 29I, 407 718; schweizerische Patentschriften Nr. 150533, 162 I57.PATENT CLAIM: Corrosion-resistant coating for electrical, metal-sheathed cables or the like. B. sprayed protective layer of a: Mixture of about 40 parts by weight of poly acrylic acid ester, about 25 parts by weight of active carbon (carbon black) and about 35 parts by weight of talc. To distinguish the subject matter of the invention from the state of the art, the following publications were considered in the granting procedure: German patent specifications No. 262 707, 438 222, 554 635, 573 2 0 8; French Patent Nos. 715 96I, 72'5 844; British Patents # 392 416 395 29I 407 7 1 8. Swiss patents No. 150533, 162 I57.
DEA74644D 1934-11-18 1934-11-18 Corrosion-resistant coating for electrical, metal-sheathed cables or the like. Expired DE754840C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA74644D DE754840C (en) 1934-11-18 1934-11-18 Corrosion-resistant coating for electrical, metal-sheathed cables or the like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA74644D DE754840C (en) 1934-11-18 1934-11-18 Corrosion-resistant coating for electrical, metal-sheathed cables or the like.

Publications (1)

Publication Number Publication Date
DE754840C true DE754840C (en) 1953-06-15

Family

ID=6946211

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA74644D Expired DE754840C (en) 1934-11-18 1934-11-18 Corrosion-resistant coating for electrical, metal-sheathed cables or the like.

Country Status (1)

Country Link
DE (1) DE754840C (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE262707C (en) * 1912-01-30 1913-07-14 Roehm Otto Process for making a product with the properties of vulcanized rubber
DE438222C (en) * 1925-01-28 1926-12-13 Richard Apt Dr Electric lead cable
CH150533A (en) * 1929-10-18 1931-10-31 Roehm & Haas Aktiengesellschaf Isolating agent.
FR725844A (en) * 1930-11-13 1932-05-18 Ig Farbenindustrie Ag Process for the production of polymerization products
DE554635C (en) * 1932-07-09 Paul Jordan Tubular wire with a rubber cover over the metal jacket for electrical wiring systems
DE573208C (en) * 1930-06-22 1933-03-29 Consortium Elektrochem Ind Process for the production of as paint raw materials, impregnation agents, plastic masses and. Usable products
GB392416A (en) * 1932-09-28 1933-05-18 Helge Rost Improvements in or relating to electric cables
CH162157A (en) * 1932-04-22 1933-06-15 Roehm & Haas Aktiengesellschaf Mixture.
GB395291A (en) * 1932-02-24 1933-07-13 Roehm & Haas Ag Improvements in and relating to the manufacture of artificial masses
GB407718A (en) * 1932-09-16 1934-03-16 Helge Rost Improvements in or relating to electric cables

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE554635C (en) * 1932-07-09 Paul Jordan Tubular wire with a rubber cover over the metal jacket for electrical wiring systems
DE262707C (en) * 1912-01-30 1913-07-14 Roehm Otto Process for making a product with the properties of vulcanized rubber
DE438222C (en) * 1925-01-28 1926-12-13 Richard Apt Dr Electric lead cable
CH150533A (en) * 1929-10-18 1931-10-31 Roehm & Haas Aktiengesellschaf Isolating agent.
DE573208C (en) * 1930-06-22 1933-03-29 Consortium Elektrochem Ind Process for the production of as paint raw materials, impregnation agents, plastic masses and. Usable products
FR725844A (en) * 1930-11-13 1932-05-18 Ig Farbenindustrie Ag Process for the production of polymerization products
GB395291A (en) * 1932-02-24 1933-07-13 Roehm & Haas Ag Improvements in and relating to the manufacture of artificial masses
CH162157A (en) * 1932-04-22 1933-06-15 Roehm & Haas Aktiengesellschaf Mixture.
GB407718A (en) * 1932-09-16 1934-03-16 Helge Rost Improvements in or relating to electric cables
GB392416A (en) * 1932-09-28 1933-05-18 Helge Rost Improvements in or relating to electric cables

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