JPH0532554B2 - - Google Patents
Info
- Publication number
- JPH0532554B2 JPH0532554B2 JP26604389A JP26604389A JPH0532554B2 JP H0532554 B2 JPH0532554 B2 JP H0532554B2 JP 26604389 A JP26604389 A JP 26604389A JP 26604389 A JP26604389 A JP 26604389A JP H0532554 B2 JPH0532554 B2 JP H0532554B2
- Authority
- JP
- Japan
- Prior art keywords
- bit
- cutter
- diamond
- center
- core
- 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 - Lifetime
Links
- 239000010432 diamond Substances 0.000 claims description 63
- 229910003460 diamond Inorganic materials 0.000 claims description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000011435 rock Substances 0.000 description 20
- 238000005553 drilling Methods 0.000 description 13
- 238000009412 basement excavation Methods 0.000 description 11
- 230000007423 decrease Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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
- E21B10/00—Drill bits
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)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26604389A JPH03129086A (ja) | 1989-10-12 | 1989-10-12 | ノンコア ダイヤモンドビツト |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26604389A JPH03129086A (ja) | 1989-10-12 | 1989-10-12 | ノンコア ダイヤモンドビツト |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03129086A JPH03129086A (ja) | 1991-06-03 |
| JPH0532554B2 true JPH0532554B2 (https=) | 1993-05-17 |
Family
ID=17425602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26604389A Granted JPH03129086A (ja) | 1989-10-12 | 1989-10-12 | ノンコア ダイヤモンドビツト |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03129086A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0787831A4 (en) * | 1995-08-11 | 1998-11-11 | Nippon Steel Corp | Resin-chromate composition and surface-treated metal sheet |
-
1989
- 1989-10-12 JP JP26604389A patent/JPH03129086A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03129086A (ja) | 1991-06-03 |
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