JPH0370257U - - Google Patents

Info

Publication number
JPH0370257U
JPH0370257U JP13058289U JP13058289U JPH0370257U JP H0370257 U JPH0370257 U JP H0370257U JP 13058289 U JP13058289 U JP 13058289U JP 13058289 U JP13058289 U JP 13058289U JP H0370257 U JPH0370257 U JP H0370257U
Authority
JP
Japan
Prior art keywords
blade
drill
opening
hemispherical
bit
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
Application number
JP13058289U
Other languages
Japanese (ja)
Other versions
JPH0634359Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989130582U priority Critical patent/JPH0634359Y2/en
Publication of JPH0370257U publication Critical patent/JPH0370257U/ja
Application granted granted Critical
Publication of JPH0634359Y2 publication Critical patent/JPH0634359Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Blast Furnaces (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の開孔用ビツトＡを
示す平面図、第２図は第１図中−の矢視図、
第３図は本実施例の開孔用ビツトＡで出銑口を穿
孔している状態の断面図、第４図は従来の開孔用
ビツトＡで出銑口を穿孔している状態の断面図、
第５図は従来の開孔用ビツトＡの側面図である。 １，２……刃体、３……溝、４……フエイス面
の冷却気体噴出口、Ａ……開孔用ビツト、Ｂ……
開孔、Ｄ……出銑口、Ｆ……フエイス面、Ｇ……
ゲージ面、Ｈ……側周面の冷却気体噴出口、Ｋ…
…錐、Ｍ……マツド、Ｓ……側周面、Ｔ……半球
状の刃体、Ｘ……開孔機。 FIG. 1 is a plan view showing a drilling bit A according to an embodiment of the present invention, FIG. 2 is a view taken in the direction of the arrow - in FIG. 1,
Fig. 3 is a sectional view of a tap hole being drilled with the drilling bit A of this embodiment, and Fig. 4 is a sectional view of a tap hole being drilled with a conventional drilling bit A. figure,
FIG. 5 is a side view of a conventional drilling bit A. 1, 2...Blade body, 3...Groove, 4...Cooling gas outlet on face, A...Drilling bit, B...
Opening hole, D...Tackle mouth, F...Face surface, G...
Gauge surface, H...cooling gas outlet on side peripheral surface, K...
...Awl, M...Matsudo, S...Side circumferential surface, T...Semispherical blade, X...Drilling machine.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 先端中央に設けた平坦なフエイス面と周辺に傾
斜したゲージ面に表面が半球状の刃体を凸設し、
且つ側周面に排出溝を設けた円柱状のビツトを有
する出銑口開孔用錐において、前記ビツトの側周
面で、しかも上記ゲージ面直後に表面が半球状の
刃体を凸設し、該刃体の直近に冷却気体噴出用の
噴射口を設けたことを特徴とする高炉出銑口の開
孔用錐。 A flat face surface at the center of the tip and a hemispherical blade protrude from the slanted gauge surface around the edge.
In addition, in a drill for opening a taphole having a cylindrical bit with a discharge groove on the side circumferential surface, a blade with a hemispherical surface is provided protrudingly on the side circumferential surface of the bit and immediately behind the gauge surface. A drill for opening a hole in a blast furnace taphole, characterized in that an injection port for ejecting cooling gas is provided in the immediate vicinity of the blade body.
JP1989130582U 1989-11-10 1989-11-10 Bone for tapping the blast furnace tap hole Expired - Lifetime JPH0634359Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989130582U JPH0634359Y2 (en) 1989-11-10 1989-11-10 Bone for tapping the blast furnace tap hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989130582U JPH0634359Y2 (en) 1989-11-10 1989-11-10 Bone for tapping the blast furnace tap hole

Publications (2)

Publication Number Publication Date
JPH0370257U true JPH0370257U (en) 1991-07-15
JPH0634359Y2 JPH0634359Y2 (en) 1994-09-07

Family

ID=31678149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989130582U Expired - Lifetime JPH0634359Y2 (en) 1989-11-10 1989-11-10 Bone for tapping the blast furnace tap hole

Country Status (1)

Country Link
JP (1) JPH0634359Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007046078A (en) * 2005-08-08 2007-02-22 Nippon Steel Corp Hot drilling bit and method for drilling hot metal sleeve of converter using the same
JP2007119868A (en) * 2005-10-28 2007-05-17 Nakazono Kogyosho:Kk Hot spring opening drill
WO2020189393A1 (en) * 2019-03-19 2020-09-24 Ｊｆｅスチール株式会社 Hole-opening bit and tap hole opening method using same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151407A (en) * 1982-03-03 1983-09-08 Kawasaki Steel Corp Bit for spot facing for tap hole of blast furnace
JPS58157907A (en) * 1982-03-11 1983-09-20 Mitsubishi Metal Corp Bit for tapping

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151407A (en) * 1982-03-03 1983-09-08 Kawasaki Steel Corp Bit for spot facing for tap hole of blast furnace
JPS58157907A (en) * 1982-03-11 1983-09-20 Mitsubishi Metal Corp Bit for tapping

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007046078A (en) * 2005-08-08 2007-02-22 Nippon Steel Corp Hot drilling bit and method for drilling hot metal sleeve of converter using the same
JP2007119868A (en) * 2005-10-28 2007-05-17 Nakazono Kogyosho:Kk Hot spring opening drill
WO2020189393A1 (en) * 2019-03-19 2020-09-24 Ｊｆｅスチール株式会社 Hole-opening bit and tap hole opening method using same
JPWO2020189393A1 (en) * 2019-03-19 2021-04-01 Ｊｆｅスチール株式会社 Opening bit and method of opening the tap using it
CN113490754A (en) * 2019-03-19 2021-10-08 杰富意钢铁株式会社 Tapping drill and tapping method using same
US11821048B2 (en) 2019-03-19 2023-11-21 Jfe Steel Corporation Hole-opening bit and tap hole opening method using same

Also Published As

Publication number Publication date
JPH0634359Y2 (en) 1994-09-07

Similar Documents

Publication Publication Date Title
JPH0370257U (en)
JPH02130306U (en)
JPS6420221U (en)
JPH0428955U (en)
JPS6442815U (en)
JPH0451306U (en)
JPH0251243U (en)
JPS62126345U (en)
JPS61109612U (en)
JPH0362714U (en)
JPS62110841U (en)
JPS61155408U (en)
JPS6285342U (en)
JPH02122744U (en)
JPS5928402U (en) Round bit for cutting soft and viscous materials
JPS62110806U (en)
JPS6420214U (en)
JPS58107422U (en) Nozzle for gas cutting of steel plates, etc.
JPH0382138U (en)
JPS6129193U (en) Water faucet
JPS644510U (en)
JPH01149211U (en)
JPS615513U (en) drilling drill device
JPH0412583U (en)
JPS60194472U (en) Impact wrench bit holder device

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term