GB1383707A - Tandem induction scan hardening of pipe - Google Patents

Tandem induction scan hardening of pipe

Info

Publication number
GB1383707A
GB1383707A GB3874372A GB3874372A GB1383707A GB 1383707 A GB1383707 A GB 1383707A GB 3874372 A GB3874372 A GB 3874372A GB 3874372 A GB3874372 A GB 3874372A GB 1383707 A GB1383707 A GB 1383707A
Authority
GB
United Kingdom
Prior art keywords
pipes
pipe
coil
tempering
returned
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
GB3874372A
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.)
Park Ohio Holdings Inc
Original Assignee
Ajax Magnethermic Corp
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 Ajax Magnethermic Corp filed Critical Ajax Magnethermic Corp
Publication of GB1383707A publication Critical patent/GB1383707A/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
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/42—Induction heating
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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

1383707 Heat-treating large diameter pipe AJAX MAGNETHERMIC CORP 18 Aug 1972 [8 Sept 1971] 38743/72 Heading C7N In a processs for hardening and tempering by induction scan heating a pipe is advanced through an induction coil and a water spray and is then returned through the same coil at a higher speed for tempering; there are two treatment lines in parallel on which pipes are treated alternately in overlapping cycles. As illustrated, pipes P arriving on a central conveyor are transferred alternately to conveyor lines 12 or 13 by which they are carried through restraining rolls 16, induction coil 17 quench ring 18 and restraining rolls 19. Additionally the pipes may be internally quenched by a head mounted on coolant supply conduit 20. The pipes are then returned through the coil, residual coolant being removed by air blast 27 and are shifted to discharge bed 24 by transfer mechanism 25 having arms 26 which simultaneously bring a fresh pipe into the feed position.
GB3874372A 1971-09-08 1972-08-18 Tandem induction scan hardening of pipe Expired GB1383707A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17859071A 1971-09-08 1971-09-08

Publications (1)

Publication Number Publication Date
GB1383707A true GB1383707A (en) 1974-02-12

Family

ID=22653148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3874372A Expired GB1383707A (en) 1971-09-08 1972-08-18 Tandem induction scan hardening of pipe

Country Status (3)

Country Link
US (1) US3755010A (en)
JP (1) JPS536926B2 (en)
GB (1) GB1383707A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431445B2 (en) * 1974-02-04 1979-10-06
JPS591971B2 (en) * 1975-03-26 1984-01-14 株式会社日立製作所 Bunko Koudokei
DE2620377A1 (en) * 1976-05-08 1977-11-17 Aeg Elotherm Gmbh METHOD FOR HEAT TREATMENT OF THICK-WALLED STEEL PIPES
US4181845A (en) * 1977-07-11 1980-01-01 Smith International, Inc. Apparatus for tempering the weld between a tool joint connector and a drill pipe tube
US6084224A (en) * 1997-03-03 2000-07-04 Chrysler Corporation In-situ closed loop temperature control for induction tempering
US7084381B2 (en) * 2004-04-01 2006-08-01 Ronald R Davids Method and apparatus for controlling part movement
DE102005021856A1 (en) * 2005-05-11 2006-11-16 Hwg Inductoheat Gmbh Induction heating unit
US9181610B2 (en) * 2008-03-27 2015-11-10 Nippon Steel & Sumitomo Metal Corporation Air cooling equipment for heat treatment process for martensitic stainless steel pipe or tube

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407099A (en) * 1965-10-22 1968-10-22 United States Steel Corp Method and apparatus for spraying liquids on the surface of cylindrical articles
US3623716A (en) * 1969-07-18 1971-11-30 Mannesmann Roehren Werke Ag Method and apparatus for hardening pipes internally and externally

Also Published As

Publication number Publication date
US3755010A (en) 1973-08-28
JPS536926B2 (en) 1978-03-13
JPS4836014A (en) 1973-05-28

Similar Documents

Publication Publication Date Title
GB1387440A (en) Heat-treating piping
JPS52152814A (en) Thermo-mechanical treatment of seamless steel pipe
GB1383707A (en) Tandem induction scan hardening of pipe
ES8207339A1 (en) Inductively heated rotary retort heat treating furnace
FR2448573A1 (en) Continuous automatic heat treatment plant - using row of fluidised beds, esp. for isothermal treatment of steel in absence of air
GB1047637A (en) Improved hot rolled steel rod
GB1417624A (en) Properties of steel by heat treatment
GB1345387A (en) Heat treatment process for low-carbon steel
GB1233633A (en)
GB1181947A (en) Method and Apparatus for Tempering a Tubular Shaped Structure
JPS5541964A (en) Method and apparatus for heat treatment of ring form body
CA977974A (en) Process for heat treating magnetite with heat recuperation from cooling final product
JPS56158812A (en) Energy saving type roller heath system continuous furnace
GB1294379A (en) Production of steel rod or wire
JPS55161031A (en) Direct heat treating apparatus of hot rolled steel wire rod
GB964439A (en) Improvements in or relating to furnaces for heat treating workpieces
GB1419938A (en) Apparatus for treating eg inductively hardening workpieces
JPS566729A (en) Production of steel pipe having high collapse strength for oil well
SU459518A1 (en) The method of thermocyclic treatment of carbon steels
SU407962A1 (en) METHOD OF THERMAL PROCESSING OF PRODUCTS
JPS5687624A (en) Heat treatment of ni-containing barlike steel product
SU603681A1 (en) Device for hardening hollow articles
GB1263460A (en) Improvements in or relating to apparatus for hardening metal articles
JPS51120914A (en) Continuous transfer system of long chains in a special-purpose furnace for tempering and stress removal
GB1056915A (en) Improved method and apparatus for the controlled cooling of hot-rolled rod

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years