JPH0457592U - - Google Patents
Info
- Publication number
- JPH0457592U JPH0457592U JP9976390U JP9976390U JPH0457592U JP H0457592 U JPH0457592 U JP H0457592U JP 9976390 U JP9976390 U JP 9976390U JP 9976390 U JP9976390 U JP 9976390U JP H0457592 U JPH0457592 U JP H0457592U
- Authority
- JP
- Japan
- Prior art keywords
- base metal
- brazed
- welded
- carbide material
- shield excavator
- 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.)
- Granted
Links
- 239000010953 base metal Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000005219 brazing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Description
第１図は本考案に係わるシールド掘削機のカツ
タビツトの一実施例を示す斜視図、第２図は従来
のシールド掘削機のカツタビツトを示す斜視図で
ある。
１……台金、２……超硬材料、３……ろう材、
４……溶着層。
FIG. 1 is a perspective view showing an embodiment of a shield excavator cutter according to the present invention, and FIG. 2 is a perspective view showing a conventional shield excavator cutter. 1... Base metal, 2... Carbide material, 3... Brazing metal,
4...Welding layer.
Claims (1)
るカツタビツトにおいて、前記台金のろう付け部
に台金よりも熱膨張係数の小さい材料を台金とと
もに溶着して溶着層を形成し、その上に超硬材料
をろう付けしたことを特徴とするシールド掘削機
のカツタビツト。 In a Katsutavi that has a base metal and a carbide material brazed thereon, a material having a coefficient of thermal expansion smaller than that of the base metal is welded to the brazed portion of the base metal together with the base metal to form a welded layer. Katsutabitsu is a shield excavator that is characterized by having a carbide material brazed on top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9976390U JPH083520Y2 (en) | 1990-09-26 | 1990-09-26 | Shield excavator cutlet bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9976390U JPH083520Y2 (en) | 1990-09-26 | 1990-09-26 | Shield excavator cutlet bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0457592U true JPH0457592U (en) | 1992-05-18 |
| JPH083520Y2 JPH083520Y2 (en) | 1996-01-31 |
Family
ID=31841907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9976390U Expired - Fee Related JPH083520Y2 (en) | 1990-09-26 | 1990-09-26 | Shield excavator cutlet bit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083520Y2 (en) |
-
1990
- 1990-09-26 JP JP9976390U patent/JPH083520Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH083520Y2 (en) | 1996-01-31 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |