JPH0738306Y2 - 二重管用チャッキング装置 - Google Patents
二重管用チャッキング装置Info
- Publication number
- JPH0738306Y2 JPH0738306Y2 JP5505689U JP5505689U JPH0738306Y2 JP H0738306 Y2 JPH0738306 Y2 JP H0738306Y2 JP 5505689 U JP5505689 U JP 5505689U JP 5505689 U JP5505689 U JP 5505689U JP H0738306 Y2 JPH0738306 Y2 JP H0738306Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- outer pipe
- inner pipe
- chucking device
- magnetic field
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000005284 excitation Effects 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000701 coagulant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010304 firing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Load-Engaging Elements For Cranes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5505689U JPH0738306Y2 (ja) | 1989-05-12 | 1989-05-12 | 二重管用チャッキング装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5505689U JPH0738306Y2 (ja) | 1989-05-12 | 1989-05-12 | 二重管用チャッキング装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02145282U JPH02145282U (enExample) | 1990-12-10 |
| JPH0738306Y2 true JPH0738306Y2 (ja) | 1995-08-30 |
Family
ID=31577669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5505689U Expired - Lifetime JPH0738306Y2 (ja) | 1989-05-12 | 1989-05-12 | 二重管用チャッキング装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738306Y2 (enExample) |
-
1989
- 1989-05-12 JP JP5505689U patent/JPH0738306Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02145282U (enExample) | 1990-12-10 |
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