JPH0469451U - - Google Patents
Info
- Publication number
- JPH0469451U JPH0469451U JP11306790U JP11306790U JPH0469451U JP H0469451 U JPH0469451 U JP H0469451U JP 11306790 U JP11306790 U JP 11306790U JP 11306790 U JP11306790 U JP 11306790U JP H0469451 U JPH0469451 U JP H0469451U
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- rotating shaft
- injector
- gas
- silicon nitride
- 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
- 239000002184 metal Substances 0.000 claims description 8
- 238000007872 degassing Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims 3
- 239000000919 ceramic Substances 0.000 claims 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims 3
- 239000011261 inert gas Substances 0.000 claims 1
- 238000002386 leaching Methods 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
第１図は、本考案脱ガス噴射器の一実施例を示
す断面図、第２図は、従来の脱ガス噴射器の断面
図。
１……回転軸、２……回転体、３……噴射口、
４……金属溶湯、５……保護筒。
FIG. 1 is a sectional view showing an embodiment of the degassing injector of the present invention, and FIG. 2 is a sectional view of a conventional degassing injector. 1...Rotating shaft, 2...Rotating body, 3...Injection port,
4... Molten metal, 5... Protective tube.
Claims (1)
回転軸とその回転軸下端に固定した盤状回転体と
からなり、その回転体の周側部に設けた複数の噴
射口から回転軸の軸中心に設けたガス導入通路を
通じて不活性ガスを導入噴射して、前記金属溶湯
を撹拌する金属溶湯脱ガス装置の噴射器において
、金属溶湯の湯面が当る部分の上記回転軸の外側
に窒化けい素質セラミツク製保護筒を嵌着したこ
とを特徴とする金属溶湯脱ガス装置のガス噴射器
。 ２ 窒化けい素質セラミツク製保護筒は、肉厚が
１〜５mmものを用いることを特徴とする請求項１
に記載の金属溶湯脱ガス装置の噴射器。 ３ 窒化けい素質セラミツクスは、耐熱衝撃性が
６００℃以上で、気孔率が１％以下である請求項
または２に記載の金属溶脱ガス装置のガス噴射器
。[Scope of Claim for Utility Model Registration] 1. Consisting of a cylindrical rotating shaft immersed in a container containing molten metal and a disc-shaped rotating body fixed to the lower end of the rotating shaft, and provided on the circumferential side of the rotating body. In an injector of a molten metal degassing device that stirs the molten metal by introducing and injecting an inert gas from a plurality of injection ports through a gas introduction passage provided at the center of a rotating shaft, the part that comes into contact with the surface of the molten metal. A gas injector for a molten metal degassing device, characterized in that a protection tube made of silicon nitride ceramic is fitted on the outside of the rotating shaft. 2. Claim 1, characterized in that the protection tube made of silicon nitride ceramic has a wall thickness of 1 to 5 mm.
An injector for a molten metal degassing device described in . 3. The gas injector for a metal leaching gas device according to claim 2, wherein the silicon nitride ceramic has a thermal shock resistance of 600° C. or more and a porosity of 1% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11306790U JPH0469451U (en) | 1990-10-30 | 1990-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11306790U JPH0469451U (en) | 1990-10-30 | 1990-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0469451U true JPH0469451U (en) | 1992-06-19 |
Family
ID=31860609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11306790U Pending JPH0469451U (en) | 1990-10-30 | 1990-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0469451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007138793A1 (en) * | 2006-05-29 | 2007-12-06 | Nippon Crucible Co., Ltd. | Lance pipe, degasification equipment, container with degasification equipment and watershoot with degasification equipment |
| JP2024503994A (en) * | 2020-12-17 | 2024-01-30 | フォセコ インターナショナル リミテッド | Rotating device for molten metal processing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6386827A (en) * | 1986-09-29 | 1988-04-18 | Nippon Light Metal Co Ltd | Molten aluminum refining equipment |
| JPH01191752A (en) * | 1988-01-28 | 1989-08-01 | Showa Denko Kk | Graphite tube for introducing gas for treatment of molten aluminum |
-
1990
- 1990-10-30 JP JP11306790U patent/JPH0469451U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6386827A (en) * | 1986-09-29 | 1988-04-18 | Nippon Light Metal Co Ltd | Molten aluminum refining equipment |
| JPH01191752A (en) * | 1988-01-28 | 1989-08-01 | Showa Denko Kk | Graphite tube for introducing gas for treatment of molten aluminum |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007138793A1 (en) * | 2006-05-29 | 2007-12-06 | Nippon Crucible Co., Ltd. | Lance pipe, degasification equipment, container with degasification equipment and watershoot with degasification equipment |
| JP2008007848A (en) * | 2006-05-29 | 2008-01-17 | Nippon Crucible Co Ltd | Lance pipe, degasser, container with degasser and dredger with degasser |
| JP2024503994A (en) * | 2020-12-17 | 2024-01-30 | フォセコ インターナショナル リミテッド | Rotating device for molten metal processing |
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