SE7703898L - Borerade och ytherdade skerrotorer for borrkronor - Google Patents

Borerade och ytherdade skerrotorer for borrkronor

Info

Publication number
SE7703898L
SE7703898L SE7703898A SE7703898A SE7703898L SE 7703898 L SE7703898 L SE 7703898L SE 7703898 A SE7703898 A SE 7703898A SE 7703898 A SE7703898 A SE 7703898A SE 7703898 L SE7703898 L SE 7703898L
Authority
SE
Sweden
Prior art keywords
drilled
drill crowns
rotors
hardened
hardened shear
Prior art date
Application number
SE7703898A
Other languages
English (en)
Swedish (sv)
Inventor
H C Dill
S R 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
Application filed by Hughes Tool Co filed Critical Hughes Tool Co
Publication of SE7703898L publication Critical patent/SE7703898L/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • 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
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Carbon And Carbon Compounds (AREA)
SE7703898A 1976-08-30 1977-04-04 Borerade och ytherdade skerrotorer for borrkronor SE7703898L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71899576A 1976-08-30 1976-08-30

Publications (1)

Publication Number Publication Date
SE7703898L true SE7703898L (sv) 1978-03-01

Family

ID=24888388

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7703898A SE7703898L (sv) 1976-08-30 1977-04-04 Borerade och ytherdade skerrotorer for borrkronor

Country Status (4)

Country Link
BR (1) BR7701800A (it)
FR (1) FR2362992A1 (it)
IT (1) IT1085149B (it)
SE (1) SE7703898L (it)

Also Published As

Publication number Publication date
FR2362992A1 (fr) 1978-03-24
IT1085149B (it) 1985-05-28
BR7701800A (pt) 1978-05-09

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