A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SEMI-IMMERSION NOZZLE
PROBLEM TO BE SOLVED: To provide a semi-immersion nozzle excellent in tolerance in the vicinity of a meniscus at the inside of the nozzle and at the powder line part on the outside of the nozzle.SOLUTION: A semi-immersion nozzle is provided with: an inside member 2 arranged at the inside of a nozzle 1; and an outside member 3 arranged at the outside of the nozzle 1. The inside member 2 is composed of a spinel-carbon-silicon carbide material including: a spinel raw material of 75 to 95 mass%; a carbon raw material of 5 to 25 mass%; and silicon carbon of 1 to 8 mass% in outer percentage to the whole quantity of the spinel raw material and the carbon raw material. The outside member 3 is composed of a zirconia-carbon material including: a zirconia raw material of 50 to 90 mass%; and a carbon raw material of 10 to 50 mass%.SELECTED DRAWING: Figure 3
【課題】ノズル内側のメニスカス付近およびノズル外側のパウダーライン部での耐用性に優れたセミイマージョンノズルを提供する。【解決手段】ノズル１の内側に配置される内側部材２とノズル１の外側に配置される外側部材３とを備える。内側部材２は、スピネル原料７５〜９５質量％と、カーボン原料５〜２５質量％と、スピネル原料とカーボン原料とカーボン原料との全量に対して外掛け１〜８質量％の炭化珪素質とを含有するスピネル−カーボン−炭化珪素質材質により構成される。外側部材３は、ジルコニア原料５０〜９０質量％と、カーボン原料１０〜５０質量％とを含有するジルコニア−カーボン質材質により構成される。【選択図】図３
SEMI-IMMERSION NOZZLE
PROBLEM TO BE SOLVED: To provide a semi-immersion nozzle excellent in tolerance in the vicinity of a meniscus at the inside of the nozzle and at the powder line part on the outside of the nozzle.SOLUTION: A semi-immersion nozzle is provided with: an inside member 2 arranged at the inside of a nozzle 1; and an outside member 3 arranged at the outside of the nozzle 1. The inside member 2 is composed of a spinel-carbon-silicon carbide material including: a spinel raw material of 75 to 95 mass%; a carbon raw material of 5 to 25 mass%; and silicon carbon of 1 to 8 mass% in outer percentage to the whole quantity of the spinel raw material and the carbon raw material. The outside member 3 is composed of a zirconia-carbon material including: a zirconia raw material of 50 to 90 mass%; and a carbon raw material of 10 to 50 mass%.SELECTED DRAWING: Figure 3
【課題】ノズル内側のメニスカス付近およびノズル外側のパウダーライン部での耐用性に優れたセミイマージョンノズルを提供する。【解決手段】ノズル１の内側に配置される内側部材２とノズル１の外側に配置される外側部材３とを備える。内側部材２は、スピネル原料７５〜９５質量％と、カーボン原料５〜２５質量％と、スピネル原料とカーボン原料とカーボン原料との全量に対して外掛け１〜８質量％の炭化珪素質とを含有するスピネル−カーボン−炭化珪素質材質により構成される。外側部材３は、ジルコニア原料５０〜９０質量％と、カーボン原料１０〜５０質量％とを含有するジルコニア−カーボン質材質により構成される。【選択図】図３
SEMI-IMMERSION NOZZLE
セミイマージョンノズル
OGATA KAZUNOBU (author) / NISHIO KANAE (author) / NIIZUMA HIROYASU (author)
2018-05-17
Patent
Electronic Resource
Japanese
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