DE3070489D1 - Process for producing tension-crack corrosion-resistant non magnetizable drill collars of austenitic steels, and apparatus for carrying out this process - Google Patents

Process for producing tension-crack corrosion-resistant non magnetizable drill collars of austenitic steels, and apparatus for carrying out this process

Info

Publication number
DE3070489D1
DE3070489D1 DE8080890152T DE3070489T DE3070489D1 DE 3070489 D1 DE3070489 D1 DE 3070489D1 DE 8080890152 T DE8080890152 T DE 8080890152T DE 3070489 T DE3070489 T DE 3070489T DE 3070489 D1 DE3070489 D1 DE 3070489D1
Authority
DE
Germany
Prior art keywords
carrying
drill collars
resistant non
austenitic steels
crack corrosion
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
DE8080890152T
Other languages
English (en)
Inventor
Richard Reiterer
Heinz Dr Kohl
Josef Dipl Ing Riedl
Hans Dr Enockl
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.)
Vereinigte Edelstahlwerke AG
Original Assignee
Vereinigte Edelstahlwerke 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3489749&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3070489(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Vereinigte Edelstahlwerke AG filed Critical Vereinigte Edelstahlwerke AG
Application granted granted Critical
Publication of DE3070489D1 publication Critical patent/DE3070489D1/de
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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • 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
    • C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
DE8080890152T 1980-01-25 1980-12-19 Process for producing tension-crack corrosion-resistant non magnetizable drill collars of austenitic steels, and apparatus for carrying out this process Expired DE3070489D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT40580A AT364592B (de) 1980-01-25 1980-01-25 Verfahren zur herstellung von spannungsrisskorrosionsbestaendigen, nichtmagnetisierbaren schwerstangen aus austenitischen staehlen und vorrichtung zur durchfuehrung des verfahrens

Publications (1)

Publication Number Publication Date
DE3070489D1 true DE3070489D1 (en) 1985-05-15

Family

ID=3489749

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080890152T Expired DE3070489D1 (en) 1980-01-25 1980-12-19 Process for producing tension-crack corrosion-resistant non magnetizable drill collars of austenitic steels, and apparatus for carrying out this process

Country Status (3)

Country Link
EP (1) EP0035091B1 (de)
AT (1) AT364592B (de)
DE (1) DE3070489D1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58167724A (ja) * 1982-03-26 1983-10-04 Kobe Steel Ltd 石油掘削スタビライザ−用素材の製造方法
AT392802B (de) * 1988-08-04 1991-06-25 Schoeller Bleckmann Stahlwerke Verfahren zur herstellung von spannungsrisskorrosionsbestaendigen rohrfoermigen koerpern, insbesondere nichtmagnetisierbaren schwerstangen aus austenitischen staehlen
GB0023296D0 (en) * 2000-09-22 2000-11-08 Rolls Royce Plc Prestressing of components
EP2069544A1 (de) 2006-09-27 2009-06-17 Rolls-Royce plc Verfahren und vorrichtung zum vorspannen von bauteilen durch elektrische entladung
DE102015203487A1 (de) 2015-02-26 2016-09-01 Ecoroll Ag Werkzeugtechnik Festhammervorrichtung zum Beeinflussen von Werkstücken und zugehöriges Verfahren
DE102017213045B4 (de) 2017-07-28 2023-02-23 Gühring KG Rollierwerkzeug
CN112795753B (zh) * 2020-12-25 2022-06-03 兰州理工大学 一种大口径金属管材表面强化装置及强化方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1054979A (de) * 1900-01-01
DE324509C (de) * 1913-06-18 1920-08-30 Diamond Blower Company Ltd Klopfwerkzeug zum Entfernen des Kesselsteins aus Roehren
FR800143A (fr) * 1935-01-23 1936-06-27 Standard Oil Dev Co Procédé de traitement à froid de la surface d'objets en acier spécial
DE1227491B (de) * 1957-03-06 1966-10-27 Krupp Ag Huettenwerke Gegen Spannungsrisskorrosion bestaendige unmagnetische Kappenringe
AT214466B (de) * 1959-06-04 1961-04-10 Schoeller Bleckmann Stahlwerke Stahllegierungen zur Herstellung von Schwerstangen für Tiefbohrgestänge
AT308793B (de) * 1968-12-02 1973-07-25 Schoeller Bleckmann Stahlwerke Austenitische Chrom-Nickel-Stickstoff-Stahllegierung für nichtmagnetisierbare Schwerstangen und Gestängeteile
US3610008A (en) * 1969-06-27 1971-10-05 Northrop Corp Peening tool
US3648510A (en) * 1969-08-01 1972-03-14 Gardner Newell J Internal peening tool

Also Published As

Publication number Publication date
EP0035091B1 (de) 1985-04-10
AT364592B (de) 1981-10-27
EP0035091A1 (de) 1981-09-09
ATA40580A (de) 1981-03-15

Similar Documents

Publication Publication Date Title
GB2090292B (en) Steel pipe hardening apparatus
ZA812222B (en) A method of,and arrangement for,producing molten pig iron or steel pre-material
DE3463947D1 (en) Method and apparatus for the production of liquid pig iron or steel
JPS57110962A (en) Improved apparatus and method for sequentially executing chemical processes
GB2100292B (en) Quenching method and apparatus for steel pipes
EP0202338A4 (de) Verfahren und vorrichtung zur behandlung von werkstücken mit verwendung einer sandstrahleinheit.
DE3070489D1 (en) Process for producing tension-crack corrosion-resistant non magnetizable drill collars of austenitic steels, and apparatus for carrying out this process
DE3568354D1 (en) Method for treating stainless steel surface by high temperature oxidation
DE3172977D1 (en) Brazeable ferritic stainless steel, method of using same and article formed therefrom
PH21553A (en) Work - hardenable austenitic manganese steel and method for the production thereof
DE3274337D1 (en) A method for surface-welding of austenitic stainless steel
DE3375805D1 (en) Method of carrying out metallurgical or chemical processes, and a low-shaft furnace
JPS5550440A (en) Method and apparatus for treating waste gas from steel making factory
DE3368686D1 (en) Method and apparatus for sequentially quenching steel pipes
GB2089702B (en) Method of manufacturing seamless steel pipes
DE3370823D1 (en) Method and apparatus for quenching steel pipes
EP0192777A4 (de) Verfahren und anordnung zum behandeln radioaktiven abfalls.
DE3562100D1 (en) Method and apparatus for pickling work pieces for making tubes
JPS5592286A (en) Method of treating welding zone of ferrite stainless steel
GB2143763B (en) Process for production of low-alloy steel forging
JPS56165890A (en) Slag treating method and apparatus
GB2131051B (en) Method for chemical heat treatment of parts made of steels and alloys
PL237793A2 (en) Method of heat treatment of products made of air-hardening constructional steels,especially of 18h2n4wa steel
SU648624A1 (en) Method of heat treatment of high-strength pipes made of silico-manganese steels
JPS5371646A (en) Method of welding austenite stainless steel pipe

Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee