JPS6214234Y2 - - Google Patents
Info
- Publication number
- JPS6214234Y2 JPS6214234Y2 JP11011681U JP11011681U JPS6214234Y2 JP S6214234 Y2 JPS6214234 Y2 JP S6214234Y2 JP 11011681 U JP11011681 U JP 11011681U JP 11011681 U JP11011681 U JP 11011681U JP S6214234 Y2 JPS6214234 Y2 JP S6214234Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- edge tip
- excavation
- tip
- main cutting
- 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
Links
- 238000009412 basement excavation Methods 0.000 claims description 20
- 230000005641 tunneling Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003763 resistance to breakage Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11011681U JPS5816297U (ja) | 1981-07-24 | 1981-07-24 | シ−ルド掘進機用のカツタ−ビツト |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11011681U JPS5816297U (ja) | 1981-07-24 | 1981-07-24 | シ−ルド掘進機用のカツタ−ビツト |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5816297U JPS5816297U (ja) | 1983-02-01 |
| JPS6214234Y2 true JPS6214234Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-04-11 |
Family
ID=29904474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11011681U Granted JPS5816297U (ja) | 1981-07-24 | 1981-07-24 | シ−ルド掘進機用のカツタ−ビツト |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816297U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1981
- 1981-07-24 JP JP11011681U patent/JPS5816297U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5816297U (ja) | 1983-02-01 |
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