GB852536A - Improvements in corrosion protection for buried pipe lines and electric cables - Google Patents

Improvements in corrosion protection for buried pipe lines and electric cables

Info

Publication number
GB852536A
GB852536A GB2360857A GB2360857A GB852536A GB 852536 A GB852536 A GB 852536A GB 2360857 A GB2360857 A GB 2360857A GB 2360857 A GB2360857 A GB 2360857A GB 852536 A GB852536 A GB 852536A
Authority
GB
United Kingdom
Prior art keywords
barium chromate
layer
chromate
corrosion
aluminium
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
GB2360857A
Inventor
Richard Laurens Davies
William Thomas King
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB2360857A priority Critical patent/GB852536A/en
Publication of GB852536A publication Critical patent/GB852536A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
    • C23F11/187—Mixtures of inorganic inhibitors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Insulated Conductors (AREA)

Abstract

852,536. Preventing corrosion. BRITISH INSULATED CALLENDER'S CABLES Ltd. July 24, 1958 [July 25, 1957], No. 23608/57. Class 123(1) [Also in Group XXXVI] Corrosion of pipes and electric cable sheaths of aluminium, lead or aluminium or lead base alloy when buried in corrosive soil is prevented by providing around and adjacent the pipe or cable a layer of material containing from 0À1 to 5% of barium chromate. The carrier material may consist of sand or sandy soil and/or powdered hydrated aluminium silicate in the form of kaolin, china clay, bentonite or fuller's earth with or without powdered calcium carbonate, the mixture being used as a trench backfill. Alternatively the barium chromate is carried in a greasy or asphaltic compound such as mineral or animal oil or wax or bitumen or pitch, with or without calcium carbonate and/or hydrated aluminium silicate and applied directly to the cable sheath or pipe, used as an impregnant for a wrapping of fibrous material or enclosed in a layer of an impermeable material such as rubber. In all its forms the layer containing barium chromate may also contain up to 5% of a corrosion inhibitor such as a metal chromate other than barium chromate, a nitrate, a phosphate or an amine, a ketone, an aldehyde or a natural gum or resin. Specification 852,535 is referred to.
GB2360857A 1957-07-25 1957-07-25 Improvements in corrosion protection for buried pipe lines and electric cables Expired GB852536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2360857A GB852536A (en) 1957-07-25 1957-07-25 Improvements in corrosion protection for buried pipe lines and electric cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2360857A GB852536A (en) 1957-07-25 1957-07-25 Improvements in corrosion protection for buried pipe lines and electric cables

Publications (1)

Publication Number Publication Date
GB852536A true GB852536A (en) 1960-10-26

Family

ID=10198405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2360857A Expired GB852536A (en) 1957-07-25 1957-07-25 Improvements in corrosion protection for buried pipe lines and electric cables

Country Status (1)

Country Link
GB (1) GB852536A (en)

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