JPS57192248A - Bit for excavating stratum - Google Patents
Bit for excavating stratumInfo
- Publication number
- JPS57192248A JPS57192248A JP7762781A JP7762781A JPS57192248A JP S57192248 A JPS57192248 A JP S57192248A JP 7762781 A JP7762781 A JP 7762781A JP 7762781 A JP7762781 A JP 7762781A JP S57192248 A JPS57192248 A JP S57192248A
- Authority
- JP
- Japan
- Prior art keywords
- bit
- added
- toughness
- excavating
- stratum
- 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.)
- Pending
Links
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7762781A JPS57192248A (en) | 1981-05-22 | 1981-05-22 | Bit for excavating stratum |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7762781A JPS57192248A (en) | 1981-05-22 | 1981-05-22 | Bit for excavating stratum |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57192248A true JPS57192248A (en) | 1982-11-26 |
Family
ID=13639139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7762781A Pending JPS57192248A (en) | 1981-05-22 | 1981-05-22 | Bit for excavating stratum |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57192248A (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS621843A (ja) * | 1985-06-25 | 1987-01-07 | Nissan Motor Co Ltd | 高靭性浸炭用鋼 |
US4795609A (en) * | 1986-01-21 | 1989-01-03 | Daido Tokushuko Kabushiki Kaisha | High-strength steel for valve springs, process for producing the steel, and valve springs made of the same |
US5518685A (en) * | 1994-02-03 | 1996-05-21 | Mitsubishi Steel Mfg. Co., Ltd. | Steel for carburized gear |
WO2009006511A2 (en) * | 2007-07-02 | 2009-01-08 | Baker Hughes Incorporated | Earth boring drill bits made from a low-carbon, high-molybdenum alloy |
JP2016094636A (ja) * | 2014-11-13 | 2016-05-26 | 株式会社小松製作所 | チゼル用鋼およびチゼル |
JP2019157275A (ja) * | 2019-04-04 | 2019-09-19 | 株式会社小松製作所 | チゼル用鋼およびチゼル |
-
1981
- 1981-05-22 JP JP7762781A patent/JPS57192248A/ja active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS621843A (ja) * | 1985-06-25 | 1987-01-07 | Nissan Motor Co Ltd | 高靭性浸炭用鋼 |
US4795609A (en) * | 1986-01-21 | 1989-01-03 | Daido Tokushuko Kabushiki Kaisha | High-strength steel for valve springs, process for producing the steel, and valve springs made of the same |
US5518685A (en) * | 1994-02-03 | 1996-05-21 | Mitsubishi Steel Mfg. Co., Ltd. | Steel for carburized gear |
WO2009006511A2 (en) * | 2007-07-02 | 2009-01-08 | Baker Hughes Incorporated | Earth boring drill bits made from a low-carbon, high-molybdenum alloy |
WO2009006511A3 (en) * | 2007-07-02 | 2009-07-09 | Baker Hughes Inc | Earth boring drill bits made from a low-carbon, high-molybdenum alloy |
US7905301B2 (en) | 2007-07-02 | 2011-03-15 | Baker Hughes Incorporated | Earth boring drill bits made from a low-carbon, high-molybdenum alloy |
JP2016094636A (ja) * | 2014-11-13 | 2016-05-26 | 株式会社小松製作所 | チゼル用鋼およびチゼル |
JP2019157275A (ja) * | 2019-04-04 | 2019-09-19 | 株式会社小松製作所 | チゼル用鋼およびチゼル |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS56123356A (en) | Ferritic stainless steel with superior formability | |
JPS55134160A (en) | Fe alloy with superior molten zinc erosion resistance | |
JPS579855A (en) | Steel shot | |
JPS5785952A (en) | High-speed steel | |
JPS57192248A (en) | Bit for excavating stratum | |
JPS57143468A (en) | High-speed tool steel | |
JPS57161051A (en) | Steel for plastic mold | |
JPS5690957A (en) | Maraging steel with superior stress corrosion crack resistance | |
JPS56158851A (en) | High-strength austenite stainless steel | |
JPS56116860A (en) | Tool steel for hot working | |
JPS5763668A (en) | Free cutting austenite stainless steel | |
JPS57110656A (en) | Free cutting austenite stainless steel | |
JPS565957A (en) | Cold working tool steel | |
JPS5719360A (en) | Bit of cutter for excavator | |
JPS55113861A (en) | Steel plate with superior hydrogen induced cracking resistance | |
JPS5635756A (en) | Precipitation hardening type hot working tool steel | |
JPS5760058A (en) | Austenite cast alloy with superior wear resistance at high temperature | |
JPS5531127A (en) | High toughness ni base building up alloy | |
JPS54127820A (en) | High toughness steel material for hot working | |
JPS57164950A (en) | High toughness ni alloy for build-up welding | |
JPS5579856A (en) | High toughness, wear resistant steel | |
JPS5538904A (en) | Boron-containing high silicon heat resistant steel | |
JPS5582745A (en) | High-strength high-toughness cobalt alloy | |
JPS54121222A (en) | Heat resistant cast alloy having excellent anti- cementation property and weldability | |
JPS5773162A (en) | Steel products with superior hydrogen induced cracking resistance |