JPS5716165A - Gas cementation by nitrogen, org. liquid agent and hydrocarbon - Google Patents

Gas cementation by nitrogen, org. liquid agent and hydrocarbon

Info

Publication number
JPS5716165A
JPS5716165A JP8901280A JP8901280A JPS5716165A JP S5716165 A JPS5716165 A JP S5716165A JP 8901280 A JP8901280 A JP 8901280A JP 8901280 A JP8901280 A JP 8901280A JP S5716165 A JPS5716165 A JP S5716165A
Authority
JP
Japan
Prior art keywords
amount
signal
furnace
gas
objective
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
JP8901280A
Other languages
Japanese (ja)
Other versions
JPS6057505B2 (en
Inventor
Kazuyoshi Kawada
Saburo Yamagata
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.)
ORIENTAL ENJINIARINGU KK
Oriental Engineering Co Ltd
Original Assignee
ORIENTAL ENJINIARINGU KK
Oriental Engineering Co Ltd
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 ORIENTAL ENJINIARINGU KK, Oriental Engineering Co Ltd filed Critical ORIENTAL ENJINIARINGU KK
Priority to JP55089012A priority Critical patent/JPS6057505B2/en
Publication of JPS5716165A publication Critical patent/JPS5716165A/en
Publication of JPS6057505B2 publication Critical patent/JPS6057505B2/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
    • C23C8/08—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 only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising 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

PURPOSE:To control an equilibrium carbon concn. in a carburizing furnace precisely and easily to carry out carburizing well by a method wherein nitrogen and an org. liquid agent are introduced into the carburizing furnace and, corresponding to a CO amount and a CO2 amount measured values of an atmospheric gas in the furnace, a hydrocarbon type gas is added. CONSTITUTION:Nitrogen and an org. liquid agent are directly introduced into the carburizing furnace 1 from a pipe passage 2 to form a carrier gas. Further, a hydrocarbon type gas is supplied from a pipe passage 3 so as to form an atmospheric gas with a predetermined equilibrium carbon concn. CO and CO2 of the resultant atmospheric gas are measured by a CO analyser 6 and a CO2 analyser 11. The CO analysing signal, a temp. signal in the furnace by a thermocouple 7 and an objective carbon concn. set signal from a surface carbon amount conc. setting instrument 8 are operated by an operation apparatus 10 to calculate an objective CO2 amount. The resultant objective CO2 amount is applied to a CO2 controller 9 as a set value. The controller 9 operates a control valve 4 by a deviation signal of the CO2 analysing signal and the objective CO2 amount signal to keep an equilibrium carbon concn. of the gas in the furnace 1 to a desired value.
JP55089012A 1980-06-30 1980-06-30 Gas carburizing method using nitrogen, organic liquid, and hydrocarbon Expired JPS6057505B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55089012A JPS6057505B2 (en) 1980-06-30 1980-06-30 Gas carburizing method using nitrogen, organic liquid, and hydrocarbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55089012A JPS6057505B2 (en) 1980-06-30 1980-06-30 Gas carburizing method using nitrogen, organic liquid, and hydrocarbon

Publications (2)

Publication Number Publication Date
JPS5716165A true JPS5716165A (en) 1982-01-27
JPS6057505B2 JPS6057505B2 (en) 1985-12-16

Family

ID=13958991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55089012A Expired JPS6057505B2 (en) 1980-06-30 1980-06-30 Gas carburizing method using nitrogen, organic liquid, and hydrocarbon

Country Status (1)

Country Link
JP (1) JPS6057505B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6242005U (en) * 1985-09-02 1987-03-13
JPH08319510A (en) * 1995-05-24 1996-12-03 Shinko Flex:Kk Desulfurizing agent for steel refining
JP2010159452A (en) * 2009-01-07 2010-07-22 Koyo Thermo System Kk Quenching method
US8128761B2 (en) * 2006-04-28 2012-03-06 Ntn Corporation Carbonitriding method, machinery component fabrication method, and machinery component
US9062355B2 (en) * 2006-04-07 2015-06-23 Ntn Corporation Carbonitriding method, machinery component fabrication method, and machinery component

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5615212B2 (en) * 2011-03-15 2014-10-29 中外炉工業株式会社 Carburizing equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51138542A (en) * 1975-05-27 1976-11-30 Komatsu Mfg Co Ltd Controlling method of carburizing atmosphere

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51138542A (en) * 1975-05-27 1976-11-30 Komatsu Mfg Co Ltd Controlling method of carburizing atmosphere

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6242005U (en) * 1985-09-02 1987-03-13
JPH08319510A (en) * 1995-05-24 1996-12-03 Shinko Flex:Kk Desulfurizing agent for steel refining
US9062355B2 (en) * 2006-04-07 2015-06-23 Ntn Corporation Carbonitriding method, machinery component fabrication method, and machinery component
US8128761B2 (en) * 2006-04-28 2012-03-06 Ntn Corporation Carbonitriding method, machinery component fabrication method, and machinery component
JP2010159452A (en) * 2009-01-07 2010-07-22 Koyo Thermo System Kk Quenching method

Also Published As

Publication number Publication date
JPS6057505B2 (en) 1985-12-16

Similar Documents

Publication Publication Date Title
ES456738A1 (en) Methods for carburizing steel parts
KR890008333A (en) Heat treatment process under gas atmosphere containing nitrogen and hydrocarbon
US4175986A (en) Inert carrier gas heat treating control process
JPS57177969A (en) Controlling method for carbon potential in furnace
EP0156378A3 (en) Method and apparatus for carburizing steel with a gas
JPS5716165A (en) Gas cementation by nitrogen, org. liquid agent and hydrocarbon
ES473216A1 (en) Method for controlling steel making process under reduced pressures
ES473545A1 (en) Method for the gas carburization of workpieces made of steel
GB1517257A (en) Blast furnace gas analysis
JPS5716164A (en) Gas cementation treatment
JPS5716163A (en) Gas cementation by nitrogen, org. liquid agent and hydrocarbon
JPS5629668A (en) Carbon concn. controlling method of carburizing atmosphere
JPS5713169A (en) Method for controlling concentration of carbon in carburizing atmosphere
JPS5713170A (en) Gas carburizing method
ES8106559A1 (en) Method of heat treating ferrous workpieces.
KR19980071377A (en) Atmosphere control method and apparatus in heat treatment furnace
JPS5358487A (en) Decompressive gas phase reaction apparatus
JPS55161012A (en) Blowing control method of oxygen converter
JPS52104476A (en) Ion spattering apparatus
JPS5739123A (en) Annealing method for cold rolled steel plate
ATE74031T1 (en) METHOD FOR CONTROLLING LANDFILL GAS WITHDRAWAL FROM LANDFILLS AND DEVICE FOR CARRYING OUT THE METHOD.
JPS5585622A (en) Controlling method for atmosphere of non-oxidizing furnace
JPS6452055A (en) Plasma carburization method
SU1652375A1 (en) Method for carrying out gas carburizing of iron alloy parts
JPS6011085B2 (en) Decarburization measurement device in vacuum decarburization furnace