AT375146B - Sprengloch-bohrkopf und verschleissarme verbund- stoffschneide hiefuer - Google Patents

Sprengloch-bohrkopf und verschleissarme verbund- stoffschneide hiefuer

Info

Publication number
AT375146B
AT375146B AT0409181A AT409181A AT375146B AT 375146 B AT375146 B AT 375146B AT 0409181 A AT0409181 A AT 0409181A AT 409181 A AT409181 A AT 409181A AT 375146 B AT375146 B AT 375146B
Authority
AT
Austria
Prior art keywords
hiefuer
low
drill head
hole drill
blasting hole
Prior art date
Application number
AT0409181A
Other languages
English (en)
Other versions
ATA409181A (de
Original Assignee
Kennametal 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 Kennametal Inc filed Critical Kennametal Inc
Publication of ATA409181A publication Critical patent/ATA409181A/de
Application granted granted Critical
Publication of AT375146B publication Critical patent/AT375146B/de

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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25—Methods for stimulating production
    • E21B43/26—Methods for stimulating production by forming crevices or fractures
    • E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
    • 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
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B10/58—Chisel-type inserts
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/001—Drilling a non circular hole

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
AT0409181A 1980-09-24 1981-09-23 Sprengloch-bohrkopf und verschleissarme verbund- stoffschneide hiefuer AT375146B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/190,194 US4361197A (en) 1980-09-24 1980-09-24 Blast hole grooving bit and wear resistant compact

Publications (2)

Publication Number Publication Date
ATA409181A ATA409181A (de) 1983-11-15
AT375146B true AT375146B (de) 1984-07-10

Family

ID=22700370

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0409181A AT375146B (de) 1980-09-24 1981-09-23 Sprengloch-bohrkopf und verschleissarme verbund- stoffschneide hiefuer

Country Status (5)

Country Link
US (1) US4361197A (de)
AT (1) AT375146B (de)
AU (1) AU543369B2 (de)
CA (1) CA1152058A (de)
DE (1) DE3136464C2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549615A (en) * 1982-07-12 1985-10-29 Kennametal Inc. Single-pass notching and drilling tool and method of drilling a blast role therewith
RU2595281C1 (ru) * 2015-07-20 2016-08-27 Виктор Михайлович Кононов Инструмент для выполнения профильных надрезов в пробуренных шпурах
CN112814560A (zh) * 2020-12-30 2021-05-18 重庆国翔新材料有限公司 一种变形钻头
CN113027346A (zh) * 2021-04-19 2021-06-25 重庆交通大学 一种用于隧道撑子面爆破开挖的变形钻头

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1631693A (en) * 1927-06-07 Broaching tool
US629145A (en) * 1898-12-15 1899-07-18 Joseph E Almon Instrument for cutting grooves in cylindrical holes in rocks.
US740906A (en) * 1902-07-22 1903-10-06 David Awst Owen Rock-drill attachment.
US1514156A (en) * 1924-04-25 1924-11-04 Hancock Scotty Combination bit and underreamer
GB288831A (en) * 1927-05-02 1928-04-19 Harry August Stockman Improvements in rock-drills or rock-drilling bits and the like
US1941217A (en) * 1932-08-17 1933-12-26 Ingersoll Rand Co Broaching tool
US2040074A (en) * 1935-04-15 1936-05-12 R M Wright Jack hammer bit
CH262729A (de) * 1942-09-04 1949-07-31 Sandvikens Jernverks Ab Steinbohrersatz.
US2602640A (en) * 1946-11-25 1952-07-08 Joseph R Colley Concrete cutting tool
US2759705A (en) * 1951-05-01 1956-08-21 Bjorkman Gustaf Erik Rock drills with inserted cutting edges
GB994775A (en) * 1963-05-14 1965-06-10 Sandvikens Jernverks Ab Improvements in or relating to drill bits
US3605925A (en) * 1969-09-02 1971-09-20 I J Berscheid And Associates L Non rifling drill bit
DE2940274A1 (de) * 1978-10-23 1980-04-30 Fagersta Ab Gesteinsbohrwerkzeug

Also Published As

Publication number Publication date
DE3136464A1 (de) 1982-06-16
US4361197A (en) 1982-11-30
AU7475681A (en) 1982-04-01
CA1152058A (en) 1983-08-16
AU543369B2 (en) 1985-04-18
ATA409181A (de) 1983-11-15
DE3136464C2 (de) 1984-01-26

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee