JPS5591969A - Pretreating method and apparatus for gas carburization - Google Patents

Pretreating method and apparatus for gas carburization

Info

Publication number
JPS5591969A
JPS5591969A JP16368378A JP16368378A JPS5591969A JP S5591969 A JPS5591969 A JP S5591969A JP 16368378 A JP16368378 A JP 16368378A JP 16368378 A JP16368378 A JP 16368378A JP S5591969 A JPS5591969 A JP S5591969A
Authority
JP
Japan
Prior art keywords
furnace
product
gas
oil
degreasing
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
JP16368378A
Other languages
Japanese (ja)
Other versions
JPS582588B2 (en
Inventor
Akira Inoue
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP16368378A priority Critical patent/JPS582588B2/en
Publication of JPS5591969A publication Critical patent/JPS5591969A/en
Publication of JPS582588B2 publication Critical patent/JPS582588B2/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
    • C23C8/02—Pretreatment of the material to be coated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

PURPOSE:To degrease a product without using an org. solvent and forming an oxide film harmful to the product by heating the product in a controlled atmosphere in a degreasing furnace to vaporize oil adhered to the product without burning. CONSTITUTION:A product with cutting oil adhered is set on pallet 16 in degreasing furnace body 20 of degreasing furnace 3. Air 26 preheated 24 with exhaust gas 28 from a gas carburizing furnace and town gas 32 are mixed in baffle 39 and fired 23 to maintain the internal temp. of furnace 3 at about the vaporizing temp. of the oil below the ignition point, i.e. 500+ or -20 deg.C. Gas 28 is of 800-850 deg.C, and it is used to preheat air 26-200 deg.C by heat exchange 24, cooled to about 400 deg.C, and fed into furnace 2, where it vaporizes the oil adhered to the product. Pallet 16 is then sent into the gas carburizing furnace with sending means 4 together with the product from outlet side door 56 opened by moving piston rods 54, 54 upward. The vaporized oil is burned in combustion chamber 47, and this combustion heat is transferred to furnace 3 and fed into a gas burner of the carburizing furnace.
JP16368378A 1978-12-29 1978-12-29 Gas carburizing pretreatment method and equipment Expired JPS582588B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16368378A JPS582588B2 (en) 1978-12-29 1978-12-29 Gas carburizing pretreatment method and equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16368378A JPS582588B2 (en) 1978-12-29 1978-12-29 Gas carburizing pretreatment method and equipment

Publications (2)

Publication Number Publication Date
JPS5591969A true JPS5591969A (en) 1980-07-11
JPS582588B2 JPS582588B2 (en) 1983-01-17

Family

ID=15778607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16368378A Expired JPS582588B2 (en) 1978-12-29 1978-12-29 Gas carburizing pretreatment method and equipment

Country Status (1)

Country Link
JP (1) JPS582588B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014047423A (en) * 2012-09-04 2014-03-17 Koyo Heat Treatment Co Ltd Continuous heat treatment apparatus
JP2019014932A (en) * 2017-07-05 2019-01-31 日産自動車株式会社 Heat treatment method for steel parts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014047423A (en) * 2012-09-04 2014-03-17 Koyo Heat Treatment Co Ltd Continuous heat treatment apparatus
JP2019014932A (en) * 2017-07-05 2019-01-31 日産自動車株式会社 Heat treatment method for steel parts

Also Published As

Publication number Publication date
JPS582588B2 (en) 1983-01-17

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