GB396943A - Improvements relating to rotary percussive drills - Google Patents

Improvements relating to rotary percussive drills

Info

Publication number
GB396943A
GB396943A GB24425/32A GB2442532A GB396943A GB 396943 A GB396943 A GB 396943A GB 24425/32 A GB24425/32 A GB 24425/32A GB 2442532 A GB2442532 A GB 2442532A GB 396943 A GB396943 A GB 396943A
Authority
GB
United Kingdom
Prior art keywords
per cent
improvements relating
rotary percussive
percussive drills
cobalt
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
Application number
GB24425/32A
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.)
TOOL METAL Manufacturing Co Ltd
Original Assignee
TOOL METAL Manufacturing 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 TOOL METAL Manufacturing Co Ltd filed Critical TOOL METAL Manufacturing Co Ltd
Publication of GB396943A publication Critical patent/GB396943A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58Chisel-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

Inserted cutters for rotary percussive drills are made of a sintered alloy of "hard metal" with 5-12 per cent of a softer metal, such as iron, cobalt, nickel or manganese. By the term "hard metal" is to be understood the borides, carbides, nitrides and silicides of the elements tungsten, molybdenum, tantalum, boron or titanium. A specific example is 92 per cent tungsten carbide and 8 per cent cobalt.
GB24425/32A 1932-08-10 1932-09-01 Improvements relating to rotary percussive drills Expired GB396943A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE396943X 1932-08-10

Publications (1)

Publication Number Publication Date
GB396943A true GB396943A (en) 1933-08-17

Family

ID=6397107

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24425/32A Expired GB396943A (en) 1932-08-10 1932-09-01 Improvements relating to rotary percussive drills

Country Status (1)

Country Link
GB (1) GB396943A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE762288C (en) * 1937-01-17 1953-08-24 Deutsche Edelstahlwerke Ag Hard metal alloy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE762288C (en) * 1937-01-17 1953-08-24 Deutsche Edelstahlwerke Ag Hard metal alloy

Similar Documents

Publication Publication Date Title
GB396943A (en) Improvements relating to rotary percussive drills
GB443303A (en) Improvements in or relating to hard cemented carbide material
GB395134A (en) Improvements in hard alloys
GB705844A (en) Improvements in hard metal bodies forming cutting edges in percussive rock drilling tools
GB423647A (en) Improvements in stone boring tools, rock drills, and the like
GB391984A (en) Improvements in hard alloys
GB455910A (en) Improvements in and relating to metal cutting tool bits
GB668991A (en) Improvements in rotary drill bits
GB406633A (en) Improvements in hard alloys
GB392038A (en) Improvements relating to hard alloys
GB376912A (en) Improvements in or relating to sintered hard metallic alloys
GB465323A (en) Improved sintered hard metal alloys
GB398932A (en) Improvements relating to hard alloys
GB398661A (en) Improvements in hard alloys
GB528565A (en) Improvements in hard metal alloys
GB396940A (en) Improvements relating to hard metal alloys
GB436255A (en) Improvements in or relating to hard metal compositions
GB364460A (en) Improvements in rotary drill bits
GB388057A (en) Stain-resisting alloys
GB405137A (en) Improved sintered hard alloys
GB463239A (en) Improvements in sintered hard carbide composition
GB478025A (en) Improvements in and relating to sintered hard metal alloys
GB396129A (en) Improvements in and relating to metal compositions
GB430230A (en) Improvements in or relating to drawing dies
GB316702A (en) Alloys