JPH0724469Y2 - コアビット - Google Patents
コアビットInfo
- Publication number
- JPH0724469Y2 JPH0724469Y2 JP9589389U JP9589389U JPH0724469Y2 JP H0724469 Y2 JPH0724469 Y2 JP H0724469Y2 JP 9589389 U JP9589389 U JP 9589389U JP 9589389 U JP9589389 U JP 9589389U JP H0724469 Y2 JPH0724469 Y2 JP H0724469Y2
- Authority
- JP
- Japan
- Prior art keywords
- diamond
- tip
- core bit
- reduced
- bit
- 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 30
- 229910003460 diamond Inorganic materials 0.000 claims description 29
- 239000004567 concrete Substances 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000011150 reinforced concrete Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 15
- 239000006061 abrasive grain Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910017755 Cu-Sn Inorganic materials 0.000 description 2
- 229910017927 Cu—Sn Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9589389U JPH0724469Y2 (ja) | 1989-08-16 | 1989-08-16 | コアビット |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9589389U JPH0724469Y2 (ja) | 1989-08-16 | 1989-08-16 | コアビット |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0336085U JPH0336085U (enrdf_load_stackoverflow) | 1991-04-09 |
| JPH0724469Y2 true JPH0724469Y2 (ja) | 1995-06-05 |
Family
ID=31645129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9589389U Expired - Lifetime JPH0724469Y2 (ja) | 1989-08-16 | 1989-08-16 | コアビット |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724469Y2 (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943102A (zh) * | 2021-04-15 | 2021-06-11 | 山东如意机械有限公司 | 一种金属陶瓷钎头 |
-
1989
- 1989-08-16 JP JP9589389U patent/JPH0724469Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0336085U (enrdf_load_stackoverflow) | 1991-04-09 |
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