GB1175644A - A Method of Treating Cast Iron Containing Spheroidal Graphite - Google Patents

A Method of Treating Cast Iron Containing Spheroidal Graphite

Info

Publication number
GB1175644A
GB1175644A GB1020268A GB1020268A GB1175644A GB 1175644 A GB1175644 A GB 1175644A GB 1020268 A GB1020268 A GB 1020268A GB 1020268 A GB1020268 A GB 1020268A GB 1175644 A GB1175644 A GB 1175644A
Authority
GB
United Kingdom
Prior art keywords
cast iron
spheroidal graphite
graphite cast
iron containing
treating cast
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
GB1020268A
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.)
HELLMUT FRIEDERICHS
Bergische Stahl Industrie
Original Assignee
HELLMUT FRIEDERICHS
Bergische Stahl Industrie
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 HELLMUT FRIEDERICHS, Bergische Stahl Industrie filed Critical HELLMUT FRIEDERICHS
Publication of GB1175644A publication Critical patent/GB1175644A/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
    • C21D5/00—Heat treatments of cast-iron
    • C21D5/04—Heat treatments of cast-iron of white cast-iron
    • C21D5/06—Malleabilising
    • C21D5/08—Malleabilising with oxidation of carbon
    • C21D5/10—Malleabilising with oxidation of carbon in gaseous agents
    • 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)
  • Arc Welding In General (AREA)
  • Heat Treatment Of Articles (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

1,175,644. Decarburizing spheroidal graphite cast iron. W. BUSCH AND H. FRIEDERICHS [Trading as BERGISCHE STAHL INDUSTRIE]. March 1, 1968 [March 3, 1967], No.10202/68. Headings C7A and C7D. Spheroidal graphite cast iron is rendered weldable by decarburizing annealing at 900 to 1200‹C., at least in the zones to be welded, to reduce the carbon content to not more than 0À3%. For example a spheroidal graphite cast iron workpiece containing 3À39%C, 2À52%Si, 0À17%Mn, 0À05%Mg, the rest being Fe with usual additions and impurities, is heated at 1070‹C. for 48 hours to reduce the carbon content in the weld or edge zones to 0À2%C, prior to tempering at 740‹C.
GB1020268A 1967-03-03 1968-03-01 A Method of Treating Cast Iron Containing Spheroidal Graphite Expired GB1175644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0091456 1967-03-03

Publications (1)

Publication Number Publication Date
GB1175644A true GB1175644A (en) 1969-12-23

Family

ID=6985848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1020268A Expired GB1175644A (en) 1967-03-03 1968-03-01 A Method of Treating Cast Iron Containing Spheroidal Graphite

Country Status (7)

Country Link
BE (1) BE711326A (en)
CH (1) CH496098A (en)
DE (1) DE1533961B1 (en)
FR (1) FR1556596A (en)
GB (1) GB1175644A (en)
NL (1) NL6802975A (en)
SE (1) SE326977B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900375A (en) * 1987-05-26 1990-02-13 Georg Fischer Ag Magnesium-treated, decarburizingly-annealed cast iron material
EP2596902A1 (en) * 2011-11-28 2013-05-29 General Electric Company Method for decarburization of a rotor forging
CN109295281A (en) * 2017-07-24 2019-02-01 福特汽车公司 The localized tempering of carburizing steel
CN112743235A (en) * 2020-12-28 2021-05-04 长春理工大学 Laser welding method for nodular cast iron and low-carbon steel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH297101A (en) * 1950-06-02 1954-03-15 Roesch Karl Ing Dr Process for the production of malleable cast iron pieces that are easily weldable by fusion welding.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900375A (en) * 1987-05-26 1990-02-13 Georg Fischer Ag Magnesium-treated, decarburizingly-annealed cast iron material
EP2596902A1 (en) * 2011-11-28 2013-05-29 General Electric Company Method for decarburization of a rotor forging
CN109295281A (en) * 2017-07-24 2019-02-01 福特汽车公司 The localized tempering of carburizing steel
CN112743235A (en) * 2020-12-28 2021-05-04 长春理工大学 Laser welding method for nodular cast iron and low-carbon steel
CN112743235B (en) * 2020-12-28 2021-10-15 长春理工大学 Laser welding method for nodular cast iron and low-carbon steel

Also Published As

Publication number Publication date
BE711326A (en) 1968-07-01
CH496098A (en) 1970-09-15
DE1533961B1 (en) 1970-11-19
NL6802975A (en) 1968-09-04
SE326977B (en) 1970-08-10
FR1556596A (en) 1969-02-07

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees