BR7603111A - Processo aperfeicoado para a fabricacao de elementos de mancal de friccao de aco - Google Patents

Processo aperfeicoado para a fabricacao de elementos de mancal de friccao de aco

Info

Publication number
BR7603111A
BR7603111A BR7603111A BR7603111A BR7603111A BR 7603111 A BR7603111 A BR 7603111A BR 7603111 A BR7603111 A BR 7603111A BR 7603111 A BR7603111 A BR 7603111A BR 7603111 A BR7603111 A BR 7603111A
Authority
BR
Brazil
Prior art keywords
manufacture
bearing elements
friction bearing
steel friction
perfect process
Prior art date
Application number
BR7603111A
Other languages
English (en)
Inventor
S Scales
Original Assignee
Hughes Tool Co
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
Priority claimed from US05/616,537 external-priority patent/US4012238A/en
Application filed by Hughes Tool Co filed Critical Hughes Tool Co
Publication of BR7603111A publication Critical patent/BR7603111A/pt

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
BR7603111A 1975-09-25 1976-05-18 Processo aperfeicoado para a fabricacao de elementos de mancal de friccao de aco BR7603111A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/616,537 US4012238A (en) 1973-08-10 1975-09-25 Method of finishing a steel article having a boronized and carburized case

Publications (1)

Publication Number Publication Date
BR7603111A true BR7603111A (pt) 1977-05-24

Family

ID=24469902

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7603111A BR7603111A (pt) 1975-09-25 1976-05-18 Processo aperfeicoado para a fabricacao de elementos de mancal de friccao de aco

Country Status (6)

Country Link
AR (1) AR210122A1 (pt)
AU (1) AU1384876A (pt)
BR (1) BR7603111A (pt)
CA (1) CA1066999A (pt)
GB (1) GB1546955A (pt)
SE (1) SE7605509L (pt)

Also Published As

Publication number Publication date
GB1546955A (en) 1979-05-31
AR210122A1 (es) 1977-06-30
CA1066999A (en) 1979-11-27
AU1384876A (en) 1977-11-17
SE7605509L (sv) 1977-03-26

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