JP4284298B2 - 出銑口開孔ビット - Google Patents
出銑口開孔ビット Download PDFInfo
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- JP4284298B2 JP4284298B2 JP2005129099A JP2005129099A JP4284298B2 JP 4284298 B2 JP4284298 B2 JP 4284298B2 JP 2005129099 A JP2005129099 A JP 2005129099A JP 2005129099 A JP2005129099 A JP 2005129099A JP 4284298 B2 JP4284298 B2 JP 4284298B2
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- tip
- bit
- center line
- hollow
- mat
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Description
第1に出銑口の中心線と平行に摺動自在に支持される削岩機の中空ロッドの先端に、該中心線に沿って回転及び打撃力を加えることによって、出銑口充填マット内に上記中心線に沿って推進する穿孔用中空ビットであって、側面対称位置に4個の円弧形穿孔粉粒排出溝を上記中心線と平行に凹設し、上記円弧形穿孔粉粒排出溝間の先端面が外側面に向う傾斜面であって、該傾斜面にそれぞれ複数のチップを設け、かつ上記中空ビットと中心線を共有する超硬合金による鋭円錐形長チップを上記先端面に突設し、該鋭円錐形長チップの開き角を約15度とし、上記鋭円錐形長チップの先端を球面に形成してなり、該鋭円錐形長チップの側面が出銑口の閉塞マットに支持され、該長チップを中心軸として上記穿孔用中空ビットを回動させ、かつ流体噴出口を上記先端面の偏心位置及び上記円弧形穿孔粉粒排出溝内に開口した出銑口開孔ビット、
によって構成される。
即ち
上記長チップ8,超硬合金チップ7等による切削屑を傾斜面6’から上記排出溝5,5を経て充填マット1’の切削孔から出銑口1外に排出し、該出銑口1の充填マット1’を開孔し出銑することができる。
1’ 充填マット
c 中心線
2 削岩機
3 中空ロッド
4 穿孔用中空ビット
5 穿孔粉粒排出溝
6 先端面
7 超硬チップ
8 鋭円錐形長チップ
8’ 球面
Claims (1)
- 出銑口の中心線と平行に摺動自在に支持される削岩機の中空ロッドの先端に、該中心線に沿って回転及び打撃力を加えることによって、出銑口充填マット内に上記中心線に沿って推進する穿孔用中空ビットであって、
側面対称位置に4個の円弧形穿孔粉粒排出溝を上記中心線と平行に凹設し、
上記円弧形穿孔粉粒排出溝間の先端面が外側面に向う傾斜面であって、該傾斜面にそれぞれ複数のチップを設け、
かつ上記中空ビットと中心線を共有する超硬合金による鋭円錐形長チップを上記先端面に突設し、該鋭円錐形長チップの開き角を約15度とし、
上記鋭円錐形長チップの先端を球面に形成してなり、該鋭円錐形長チップの側面が出銑口の閉塞マットに支持され、該長チップを中心軸として上記穿孔用中空ビットを回動させ、かつ流体噴出口を上記先端面の偏心位置及び上記円弧形穿孔粉粒排出溝内に開口した出銑口開孔ビット。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005129099A JP4284298B2 (ja) | 2005-04-27 | 2005-04-27 | 出銑口開孔ビット |
Applications Claiming Priority (1)
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---|---|---|---|
JP2005129099A JP4284298B2 (ja) | 2005-04-27 | 2005-04-27 | 出銑口開孔ビット |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006307258A JP2006307258A (ja) | 2006-11-09 |
JP4284298B2 true JP4284298B2 (ja) | 2009-06-24 |
Family
ID=37474476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005129099A Expired - Fee Related JP4284298B2 (ja) | 2005-04-27 | 2005-04-27 | 出銑口開孔ビット |
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JP (1) | JP4284298B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100974230B1 (ko) | 2008-04-21 | 2010-08-05 | (주)달성 | 용광로 출선구 개공용 고강도비트 |
JP5848865B2 (ja) * | 2010-01-22 | 2016-01-27 | 株式会社丸和技研 | 高炉の開孔装置 |
JP5766333B2 (ja) * | 2014-06-04 | 2015-08-19 | 株式会社丸和技研 | 高炉の開孔装置 |
BR112021018500A2 (pt) | 2019-03-19 | 2021-11-30 | Jfe Steel Corp | Broca de abertura de orifício e método de abertura de orifício de drenagem usando o mesmo |
-
2005
- 2005-04-27 JP JP2005129099A patent/JP4284298B2/ja not_active Expired - Fee Related
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JP2006307258A (ja) | 2006-11-09 |
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