JPS56156758A - Gear shaft fork - Google Patents

Gear shaft fork

Info

Publication number
JPS56156758A
JPS56156758A JP6014480A JP6014480A JPS56156758A JP S56156758 A JPS56156758 A JP S56156758A JP 6014480 A JP6014480 A JP 6014480A JP 6014480 A JP6014480 A JP 6014480A JP S56156758 A JPS56156758 A JP S56156758A
Authority
JP
Japan
Prior art keywords
gear shaft
shaft fork
nitriding
enhanced
wear resistance
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.)
Pending
Application number
JP6014480A
Other languages
Japanese (ja)
Inventor
Munetani Takagi
Shinobu Sasaki
Minoru Kawasaki
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP6014480A priority Critical patent/JPS56156758A/en
Publication of JPS56156758A publication Critical patent/JPS56156758A/en
Pending 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
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • F16H2063/324—Gear shift yokes, e.g. shift forks characterised by slide shoes, or similar means to transfer shift force to sleeve

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

PURPOSE:To obtain a gear shaft fork with enhanced initial fitness, enhanced wear resistance and high machinability by adding a very small amount of B to nodular graphite cast iron, casting this material into the predetermined shape, and subjecting the sliding face to gas soft-nitriding. CONSTITUTION:To a composition of ordinary nodular graphite cast iron is added 0.005-0.03wt% B, and this material is cast into the predetermined shape of a gear shaft for a car, etc. At least a surface sliding along a sleeve is then subjected to gas soft-nitriding to form an Fe-N compound layer having >= about 8mum thickness. Thus, a gear shaft fork with enhanced initial fitness, superior wear resistance and superior endurance is obtd. with high dimensional accuracy.
JP6014480A 1980-05-07 1980-05-07 Gear shaft fork Pending JPS56156758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6014480A JPS56156758A (en) 1980-05-07 1980-05-07 Gear shaft fork

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6014480A JPS56156758A (en) 1980-05-07 1980-05-07 Gear shaft fork

Publications (1)

Publication Number Publication Date
JPS56156758A true JPS56156758A (en) 1981-12-03

Family

ID=13133648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6014480A Pending JPS56156758A (en) 1980-05-07 1980-05-07 Gear shaft fork

Country Status (1)

Country Link
JP (1) JPS56156758A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104071086A (en) * 2014-06-29 2014-10-01 奉化市飞天人精密模具设计有限公司 Automobile gear rocking bar hand jacket and processing technology thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1220858A (en) * 1967-05-03 1971-01-27 Cibie Projecteurs A compensatory device for hydraulic circuits

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1220858A (en) * 1967-05-03 1971-01-27 Cibie Projecteurs A compensatory device for hydraulic circuits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104071086A (en) * 2014-06-29 2014-10-01 奉化市飞天人精密模具设计有限公司 Automobile gear rocking bar hand jacket and processing technology thereof

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