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GB2273301B - Improved cage protection for rock bits - Google Patents

Improved cage protection for rock bits

Info

Publication number
GB2273301B
GB2273301B GB9321726A GB9321726A GB2273301B GB 2273301 B GB2273301 B GB 2273301B GB 9321726 A GB9321726 A GB 9321726A GB 9321726 A GB9321726 A GB 9321726A GB 2273301 B GB2273301 B GB 2273301B
Authority
GB
United Kingdom
Prior art keywords
rock bits
improved cage
cage protection
protection
improved
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.)
Expired - Fee Related
Application number
GB9321726A
Other versions
GB9321726D0 (en
GB2273301A (en
Inventor
Michael A Siracki
Dah-Ben Liang
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.)
Smith International Inc
Original Assignee
Smith International Inc
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 Smith International Inc filed Critical Smith International Inc
Publication of GB9321726D0 publication Critical patent/GB9321726D0/en
Publication of GB2273301A publication Critical patent/GB2273301A/en
Application granted granted Critical
Publication of GB2273301B publication Critical patent/GB2273301B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
    • 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
    • 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
    • E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Composite Materials (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB9321726A 1992-11-20 1993-10-21 Improved cage protection for rock bits Expired - Fee Related GB2273301B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US97956192A 1992-11-20 1992-11-20

Publications (3)

Publication Number Publication Date
GB9321726D0 GB9321726D0 (en) 1993-12-15
GB2273301A GB2273301A (en) 1994-06-15
GB2273301B true GB2273301B (en) 1996-10-30

Family

ID=25526963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9321726A Expired - Fee Related GB2273301B (en) 1992-11-20 1993-10-21 Improved cage protection for rock bits

Country Status (1)

Country Link
GB (1) GB2273301B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5992546A (en) * 1997-08-27 1999-11-30 Kennametal Inc. Rotary earth strata penetrating tool with a cermet insert having a co-ni-fe-binder
US6022175A (en) * 1997-08-27 2000-02-08 Kennametal Inc. Elongate rotary tool comprising a cermet having a Co-Ni-Fe binder
US6010283A (en) * 1997-08-27 2000-01-04 Kennametal Inc. Cutting insert of a cermet having a Co-Ni-Fe-binder
US6170917B1 (en) 1997-08-27 2001-01-09 Kennametal Inc. Pick-style tool with a cermet insert having a Co-Ni-Fe-binder
US6024776A (en) * 1997-08-27 2000-02-15 Kennametal Inc. Cermet having a binder with improved plasticity
US8323372B1 (en) 2000-01-31 2012-12-04 Smith International, Inc. Low coefficient of thermal expansion cermet compositions

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1266966A (en) * 1968-05-15 1972-03-15
GB1450654A (en) * 1973-01-26 1976-09-22 Gen Electric Abrasion resistant cemented carbide
US4950328A (en) * 1988-07-12 1990-08-21 Mitsubishi Metal Corporation End mill formed of tungsten carbide-base sintered hard alloy
US5009705A (en) * 1989-12-28 1991-04-23 Mitsubishi Metal Corporation Microdrill bit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1266966A (en) * 1968-05-15 1972-03-15
GB1450654A (en) * 1973-01-26 1976-09-22 Gen Electric Abrasion resistant cemented carbide
US4950328A (en) * 1988-07-12 1990-08-21 Mitsubishi Metal Corporation End mill formed of tungsten carbide-base sintered hard alloy
US5009705A (en) * 1989-12-28 1991-04-23 Mitsubishi Metal Corporation Microdrill bit

Also Published As

Publication number Publication date
GB9321726D0 (en) 1993-12-15
GB2273301A (en) 1994-06-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20111021