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GB1461083A - Methods of treating metal - Google Patents

Methods of treating metal

Info

Publication number
GB1461083A
GB1461083A GB5698573A GB5698573A GB1461083A GB 1461083 A GB1461083 A GB 1461083A GB 5698573 A GB5698573 A GB 5698573A GB 5698573 A GB5698573 A GB 5698573A GB 1461083 A GB1461083 A GB 1461083A
Authority
GB
United Kingdom
Prior art keywords
furnace
ammonia
dec
sintered
gas
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
GB5698573A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB5698573A priority Critical patent/GB1461083A/en
Priority to ES432706A priority patent/ES432706A1/en
Priority to FR7442139A priority patent/FR2283244A1/en
Publication of GB1461083A publication Critical patent/GB1461083A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
    • C23C8/30—Carbo-nitriding
    • C23C8/32—Carbo-nitriding of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

1461083 Carbonitriding T BELL 3 Dec 1974 [8 Dec 1973] 56985/73 Heading C7U - Ferrous material is carbonitrided by heating in a furnace chamber containing ammonia and a carburizing gas, the amount of undissociated ammonia in the furnace being continuously monitored and adjusted if necessary, to the desired value. The monitoring may be by gas chromatography, dissociation pipette, or preferably by infrared ammonia gas analysis, and the adjustment is made by valves in the lines supplying the respective gases to the furnace. The temperature is 500-780‹C, and the surfaces treated may be of cast iron, sintered iron, low alloy steels, wrought and sintered plain carbon steels. The surfaces may previously be carburized or carbinitrided by a conventional process. The treated material may be quenched and tempered.
GB5698573A 1973-12-08 1973-12-08 Methods of treating metal Expired GB1461083A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5698573A GB1461083A (en) 1973-12-08 1973-12-08 Methods of treating metal
ES432706A ES432706A1 (en) 1973-12-08 1974-12-07 Methods of treating metal
FR7442139A FR2283244A1 (en) 1973-12-08 1974-12-09 METHOD AND DEVICE FOR CARBONITRURING FERROUS METALS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5698573A GB1461083A (en) 1973-12-08 1973-12-08 Methods of treating metal

Publications (1)

Publication Number Publication Date
GB1461083A true GB1461083A (en) 1977-01-13

Family

ID=10478048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5698573A Expired GB1461083A (en) 1973-12-08 1973-12-08 Methods of treating metal

Country Status (3)

Country Link
ES (1) ES432706A1 (en)
FR (1) FR2283244A1 (en)
GB (1) GB1461083A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170824A (en) * 1983-04-14 1986-08-13 Lucas Ind Plc Corrosion resistant steel components and method of manufacture thereof
WO1995017101A1 (en) * 1993-12-20 1995-06-29 Nikolai Mikhailovich Ryzhov Method of carrying out diagnostics on a process for the thermo-chemical treatment of steels and alloys in a glow discharge and a device for carrying out the said method
FR2841265A1 (en) * 2002-06-20 2003-12-26 Bosch Gmbh Robert Component of non-magnetic steel containing a magnetic surface layer obtained by nitriding, nitrocarburization, oxynitriding or oxynitrocarburization
WO2014031052A1 (en) 2012-08-21 2014-02-27 Aktiebolaget Skf Method for heat treating a steel component and a steel component
WO2014031053A1 (en) 2012-08-21 2014-02-27 Aktiebolaget Skf (Publ) Method for heat treating a steel component and a steel component

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205647C2 (en) * 1992-02-25 1996-08-01 Schaeffler Waelzlager Kg Process for the thermochemical-thermal treatment of case-hardening steels
RU2756547C1 (en) * 2020-09-24 2021-10-01 Общество с ограниченной ответственностью "НПП "НИТРИД" (ООО "НПП "Нитрид") Method for nitriding corrosion-resistant and high-alloy steels

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170824A (en) * 1983-04-14 1986-08-13 Lucas Ind Plc Corrosion resistant steel components and method of manufacture thereof
WO1995017101A1 (en) * 1993-12-20 1995-06-29 Nikolai Mikhailovich Ryzhov Method of carrying out diagnostics on a process for the thermo-chemical treatment of steels and alloys in a glow discharge and a device for carrying out the said method
US5846341A (en) * 1993-12-20 1998-12-08 Shemetov; Valery Vasilyevich Method of carrying out diagnostics on a process for the thermo-chemical treatment of steels and alloys in a glow discharge and a device for carrying out the said method
FR2841265A1 (en) * 2002-06-20 2003-12-26 Bosch Gmbh Robert Component of non-magnetic steel containing a magnetic surface layer obtained by nitriding, nitrocarburization, oxynitriding or oxynitrocarburization
WO2014031052A1 (en) 2012-08-21 2014-02-27 Aktiebolaget Skf Method for heat treating a steel component and a steel component
WO2014031053A1 (en) 2012-08-21 2014-02-27 Aktiebolaget Skf (Publ) Method for heat treating a steel component and a steel component
US20150225835A1 (en) * 2012-08-21 2015-08-13 Aktiebolaget Skf Method & steel component
EP2888377A4 (en) * 2012-08-21 2016-05-25 Skf Ab Method for heat treating a steel component and a steel component
EP2888379A4 (en) * 2012-08-21 2016-06-29 Skf Publ Ab Method for heat treating a steel component and a steel component
US9828664B2 (en) * 2012-08-21 2017-11-28 Aktiebolaget Skf Method and steel component
US10053764B2 (en) 2012-08-21 2018-08-21 Aktiebolaget Skf Method and steel component

Also Published As

Publication number Publication date
FR2283244A1 (en) 1976-03-26
FR2283244B1 (en) 1978-02-24
ES432706A1 (en) 1977-03-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee