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Investigation of optimum thrust, cutting speed, and water pressure for tungsten carbide and polycrystalline diamond compact roof- bolt drill bits [microform] / by Laxman S. Sundae, Thomas W. Smelser, and Wayne L. Howie (Report of investigations, 9574)

Investigation of optimum thrust, cutting speed, and water pressure for tungsten carbide and polycrystalline diamond compact roof- bolt drill bits [microform] / by Laxman S. Sundae, Thomas W. Smelser, and Wayne L. Howie (Report of investigations, 9574)
Microform図書
1995<YCA-I 28.23:9574>
National Diet Library
  • Subject HeadingBits (Drilling and boring)

Evaluation of moderately high-pressure water-jet assist applied to single drag bit tools / by J.L. Thompson, E.D. Thimons, and R.J. Timko (Report of investigations ; 9239)

Evaluation of moderately high-pressure water-jet assist applied to single drag bit tools / by J.L. Thompson, E.D. Thimons, and R.J. Timko (Report of investigations ; 9239)
Microform図書
1989<YCA-I 28.23:9239>
National Diet Library
  • Subject HeadingDrag bits (Drilling and boring) Water jets Rocks -- Fatigue

Water-jet-assisted drag bit cutting in medium-strength rock / by J.E. Geier, M. Hood, and E.D. Thimons (Information circular ; 9164)

Water-jet-assisted drag bit cutting in medium-strength rock / by J.E. Geier, M. Hood, and E.D. Thimons (Information circular ; 9164)
Microform図書
1987<YCA-I 28.27:9164>
National Diet Library
  • Subject HeadingDrag bits (Drilling and boring) Water jet cutting

Evaluation of high-pressure front-mounted water jets for frictional-ignition suppression / by C.D. Taylor and A.L. Furno (Report of investigations ; 9237)

Evaluation of high-pressure front-mounted water jets for frictional-ignition suppression / by C.D. Taylor and A.L. Furno (Report of investigations ; 9237)
Microform図書
1989<YCA-I 28.23:9237>
National Diet Library
  • Subject HeadingMine explosions -- Prevention Bits (Drilling and boring) -- Safety measures Water jets...

Drag bit cutting characteristics using sintered diamond inserts / by Wallace W. Roepke, Bruce D. Hanson, and Carl E. Longfellow (Report of investigations ; 8802)

Drag bit cutting characteristics using sintered diamond inserts / by Wallace W. Roepke, Bruce D. Hanson, and Carl E. Longfellow (Report of investigations ; 8802)
Microform図書
1983<YCA-I 28.23:8802>
National Diet Library
  • Subject HeadingDrag bits (Drilling and boring) -- Testing Diamonds, Industri...

Determination of bit forces encountered in hard rock cutting for application to continuous miner design / by Sam G. Demou, Richard C. Olson, and Carl F. Wingquist (Report of investigations ; 8748)

Determination of bit forces encountered in hard rock cutting for application to continuous miner design / by Sam G. Demou, Richard C. Olson, and Carl F. Wingquist (Report of investigations ; 8748)
Microform図書
1983<YCA-I 28.23:8748>
National Diet Library
  • Subject HeadingDrag bits (Drilling and boring) Mining machinery -- Design an...

Повышение эффективности бурового инструмента

Повышение эффективности бурового инструмента
Paper図書
В.С. Блохин"Техника"1982
Other Libraries in Japan
  • Subject HeadingBits (Drilling and boring) Boring
  • Subject Heading (ID)Bits (Drilling and boring) Boring

Бурение взрывных скважин на карьерах

Бурение взрывных скважин на карьерах
Paper図書
Ю.С. Лопатин, Г.М. Осипов, А.А. Перегудов"Недра"1979
Other Libraries in Japan
  • Subject HeadingBoring Bits (Drilling and boring)
  • Subject Heading (ID)Boring Bits (Drilling and boring)

Verbesserung der Bohrungsqualität beim Arbeiten mit Einlippen-Tiefbohrwerkzeugen

Verbesserung der Bohrungsqualität beim Arbeiten mit Einlippen-Tiefbohrwerkzeugen
Paper図書
von Franz PflegharTechnischer Verlag Grossmann1976
Other Libraries in Japan
  • Subject HeadingBits (Drilling and boring) Drilling and boring
  • Subject Heading (ID)Bits (Drilling and boring) Drilling and boring

Шарошечные долота для бурения взрывных скважин

Шарошечные долота для бурения взрывных скважин
Paper図書
А.А. Перегудов ... [и др.]"Недра"1969
Other Libraries in Japan
  • Subject HeadingBits (Drilling and boring) Boring
  • Subject Heading (ID)Bits (Drilling and boring) Boring

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