ATE46192T1 - PROCESS FOR HEAT TREATMENT OF HARDENABLE CARBON STEEL TUBES. - Google Patents

PROCESS FOR HEAT TREATMENT OF HARDENABLE CARBON STEEL TUBES.

Info

Publication number
ATE46192T1
ATE46192T1 AT84300740T AT84300740T ATE46192T1 AT E46192 T1 ATE46192 T1 AT E46192T1 AT 84300740 T AT84300740 T AT 84300740T AT 84300740 T AT84300740 T AT 84300740T AT E46192 T1 ATE46192 T1 AT E46192T1
Authority
AT
Austria
Prior art keywords
pipe
carbon steel
heat treatment
quenching
steel tubes
Prior art date
Application number
AT84300740T
Other languages
German (de)
Inventor
Daniel Graham Ball
Original Assignee
Indutech Limited
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 Indutech Limited filed Critical Indutech Limited
Application granted granted Critical
Publication of ATE46192T1 publication Critical patent/ATE46192T1/en

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

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).
AT84300740T 1984-01-10 1984-02-07 PROCESS FOR HEAT TREATMENT OF HARDENABLE CARBON STEEL TUBES. ATE46192T1 (en)

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 (1)

Publication Number Publication Date
ATE46192T1 true ATE46192T1 (en) 1989-09-15

Family

ID=27152782

Family Applications (1)

Application Number Title Priority Date Filing Date
AT84300740T ATE46192T1 (en) 1984-01-10 1984-02-07 PROCESS FOR HEAT TREATMENT OF HARDENABLE CARBON STEEL TUBES.

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
DE3479673D1 (en) 1989-10-12
ZA841054B (en) 1984-08-10
AU2319584A (en) 1985-07-18
GB8427385D0 (en) 1984-12-05
EP0151838B1 (en) 1989-09-06
EP0151838A1 (en) 1985-08-21
AU575307B2 (en) 1988-07-28

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