AU2319584A - Differential hardening of carbon steel pipe - Google Patents

Differential hardening of carbon steel pipe

Info

Publication number
AU2319584A
AU2319584A AU23195/84A AU2319584A AU2319584A AU 2319584 A AU2319584 A AU 2319584A AU 23195/84 A AU23195/84 A AU 23195/84A AU 2319584 A AU2319584 A AU 2319584A AU 2319584 A AU2319584 A AU 2319584A
Authority
AU
Australia
Prior art keywords
pipe
carbon steel
steel pipe
quenching
differential hardening
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.)
Granted
Application number
AU23195/84A
Other versions
AU575307B2 (en
Inventor
Daniel Graham Ball
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.)
Linstead Corp
Original Assignee
Linstead 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 Linstead Corp filed Critical Linstead Corp
Priority to AU23195/84A priority Critical patent/AU575307B2/en
Priority to AT84300740T priority patent/ATE46192T1/en
Priority to DE8484300740T priority patent/DE3479673D1/en
Priority to EP84300740A priority patent/EP0151838B1/en
Priority to ZA841054A priority patent/ZA841054B/en
Priority to GB848427385A priority patent/GB8427385D0/en
Publication of AU2319584A publication Critical patent/AU2319584A/en
Application granted granted Critical
Publication of AU575307B2 publication Critical patent/AU575307B2/en
Assigned to West Auck No.25 Limited reassignment West Auck No.25 Limited Request to Amend Deed and Register Assignors: INDUTECH LIMITED
Assigned to Linstead Corporation reassignment Linstead Corporation Alteration of Name(s) in Register under S187 Assignors: West Auck No.25 Limited
Anticipated expiration legal-status Critical
Ceased 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
    • C21D9/085—Cooling or quenching

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)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

An annular zone of a carbon steel pipe (10) is heated to an austenizing temperature by an induction heater (14) as the pipe (10) is moved through the heater (14) followed by quenching of the heated zone with a spray (22) of an even conical sheet of quenching fluid traveling at a preselected angle to the surface of the pipe (10) such that after striking the pipe surface the fluid remains in contact therewith resulting in rapid controlled quenching of a well defined area of the pipe (10).
AU23195/84A 1984-01-10 1984-01-10 Differential hardening of carbon steel pipe Ceased AU575307B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU23195/84A AU575307B2 (en) 1984-01-10 1984-01-10 Differential hardening of carbon steel pipe
DE8484300740T DE3479673D1 (en) 1984-01-10 1984-02-07 Heat treating hardenable carbon steel pipe
EP84300740A EP0151838B1 (en) 1984-01-10 1984-02-07 Heat treating hardenable carbon steel pipe
AT84300740T ATE46192T1 (en) 1984-01-10 1984-02-07 PROCESS FOR HEAT TREATMENT OF HARDENABLE CARBON STEEL TUBES.
ZA841054A ZA841054B (en) 1984-01-10 1984-02-14 Heat treating hardenable carbon steel pipe
GB848427385A GB8427385D0 (en) 1984-01-10 1984-10-30 Heat treating carbon workpieces

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU23195/84A AU575307B2 (en) 1984-01-10 1984-01-10 Differential hardening of carbon steel pipe
EP84300740A EP0151838B1 (en) 1984-01-10 1984-02-07 Heat treating hardenable carbon steel pipe
ZA841054A ZA841054B (en) 1984-01-10 1984-02-14 Heat treating hardenable carbon steel pipe

Publications (2)

Publication Number Publication Date
AU2319584A true AU2319584A (en) 1985-07-18
AU575307B2 AU575307B2 (en) 1988-07-28

Family

ID=27152782

Family Applications (1)

Application Number Title Priority Date Filing Date
AU23195/84A Ceased AU575307B2 (en) 1984-01-10 1984-01-10 Differential hardening of carbon steel pipe

Country Status (6)

Country Link
EP (1) EP0151838B1 (en)
AT (1) ATE46192T1 (en)
AU (1) AU575307B2 (en)
DE (1) DE3479673D1 (en)
GB (1) GB8427385D0 (en)
ZA (1) ZA841054B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9120424D0 (en) * 1991-09-25 1991-11-06 Sps Ltd Heat treatment of hardenable carbon steel pipes
US20160281188A1 (en) * 2015-03-27 2016-09-29 Tenaris Coiled Tubes, Llc Heat treated coiled tubing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752084C (en) * 1938-04-08 1952-11-04 Ohio Crankshaft Company Device for continuous surface hardening of the inner surface of hollow metal workpieces by heating and quenching
DE945930C (en) * 1949-01-01 1956-07-19 Gewerkschaft Reuss Process for the production of wear-resistant pipes for the hydraulic and pneumatic conveying of bulk goods
DE2105886A1 (en) * 1971-02-01 1972-08-24 Mannesmann Ag Method and device for quench hardening pipes
DE2137627C3 (en) * 1971-07-28 1974-02-14 Ludwig-Ofag-Indugas Industrieofenanlagen Gmbh, 4300 Essen Device for internal quenching of pipes
JPS518159A (en) * 1974-07-11 1976-01-22 Nippon Steel Corp Kyokukanno seizoho
DE2620377A1 (en) * 1976-05-08 1977-11-17 Aeg Elotherm Gmbh METHOD FOR HEAT TREATMENT OF THICK-WALLED STEEL PIPES
US4123301A (en) * 1977-01-07 1978-10-31 Republic Steel Corporation Method for quench hardening steel casings
US4110092A (en) * 1977-01-26 1978-08-29 Nippon Kokan Kabushiki Kaisha Method of apparatus for cooling inner surface of metal pipe

Also Published As

Publication number Publication date
EP0151838A1 (en) 1985-08-21
ATE46192T1 (en) 1989-09-15
DE3479673D1 (en) 1989-10-12
AU575307B2 (en) 1988-07-28
GB8427385D0 (en) 1984-12-05
EP0151838B1 (en) 1989-09-06
ZA841054B (en) 1984-08-10

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired