GB960175A - Improvements in the heat-treatment of welded pipes - Google Patents

Improvements in the heat-treatment of welded pipes

Info

Publication number
GB960175A
GB960175A GB289362A GB289362A GB960175A GB 960175 A GB960175 A GB 960175A GB 289362 A GB289362 A GB 289362A GB 289362 A GB289362 A GB 289362A GB 960175 A GB960175 A GB 960175A
Authority
GB
United Kingdom
Prior art keywords
pipe
heat
treatment
insulating material
weld
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
GB289362A
Inventor
Leonard Terence Johnson
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.)
Kemwell AG
Original Assignee
Kemwell 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 Kemwell AG filed Critical Kemwell AG
Priority to GB289362A priority Critical patent/GB960175A/en
Publication of GB960175A publication Critical patent/GB960175A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

In a process of heat-treating welds formed in the jointing of a pipe to another pipe, a flange, T-connection or other similar component, the treatment being carried out by applying an exothermic composition to the exterior of the pipe in the region of the weld, there is provided within the pipe or pipes and near to the weld area one or more closures which substantially close off the weld area from the open end or ends of the pipe. The closure plates may be made from metal or heat insulating material such as asbestos board; alternatively they may be formed of granular or fibrous heat-insulating material bonded with a water soluble binder such as gum arabic, in which case they are readily removed by flushing. Specifications 898,232, 913,225, 919,815, 923,014, 924,881, 924,882, 929,999, 941,845 and 947,668 are referred to.
GB289362A 1962-01-25 1962-01-25 Improvements in the heat-treatment of welded pipes Expired GB960175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB289362A GB960175A (en) 1962-01-25 1962-01-25 Improvements in the heat-treatment of welded pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB289362A GB960175A (en) 1962-01-25 1962-01-25 Improvements in the heat-treatment of welded pipes

Publications (1)

Publication Number Publication Date
GB960175A true GB960175A (en) 1964-06-10

Family

ID=9748001

Family Applications (1)

Application Number Title Priority Date Filing Date
GB289362A Expired GB960175A (en) 1962-01-25 1962-01-25 Improvements in the heat-treatment of welded pipes

Country Status (1)

Country Link
GB (1) GB960175A (en)

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