JP4030115B2 - 底吹きガス吹込みプラグの構造 - Google Patents
底吹きガス吹込みプラグの構造 Download PDFInfo
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- JP4030115B2 JP4030115B2 JP2003334205A JP2003334205A JP4030115B2 JP 4030115 B2 JP4030115 B2 JP 4030115B2 JP 2003334205 A JP2003334205 A JP 2003334205A JP 2003334205 A JP2003334205 A JP 2003334205A JP 4030115 B2 JP4030115 B2 JP 4030115B2
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Description
図2の、従来の円形多孔質耐火物の場合の周長比は1.0、必要なガス吐出量を維持する圧力は、0.7〜0.50MPaである。通常のプラグにおける多孔質耐火物の周長188mmを100、使用初期圧力は0.7MPaを示し、処理不良率は15%であった。
2、12 多孔質耐火物
3、13 緻密質耐火物
4、 凹凸状の接合部線
14 円形の接合部線
15 メタルケース
16 ガス供給パイプ
17 羽口受けれんが
Claims (1)
- 内層部を多孔質耐火物とし、外層部を緻密質耐火物としたガス吐出稼働面を形成する溶鋼攪拌用の底吹きガス吹込みプラグにおいて、
前記多孔質耐火物と緻密質耐火物との接合部線を凹凸状に形成し、前記多孔質耐火物および緻密質耐火物の1500℃における熱間線膨張率を、それぞれ+0.8〜+1.0%と+1.1〜+2.0%とした底吹きガス吹込みプラグの構造。
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JP2003334205A JP4030115B2 (ja) | 2003-09-25 | 2003-09-25 | 底吹きガス吹込みプラグの構造 |
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JP2003334205A JP4030115B2 (ja) | 2003-09-25 | 2003-09-25 | 底吹きガス吹込みプラグの構造 |
Publications (2)
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JP2005097691A JP2005097691A (ja) | 2005-04-14 |
JP4030115B2 true JP4030115B2 (ja) | 2008-01-09 |
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JP2003334205A Expired - Fee Related JP4030115B2 (ja) | 2003-09-25 | 2003-09-25 | 底吹きガス吹込みプラグの構造 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR200466345Y1 (ko) * | 2011-04-07 | 2013-04-12 | 토쿄 요교 가부시키가이샤 | 가스 취입 플러그 |
CN109457082A (zh) * | 2019-01-14 | 2019-03-12 | 河南省伯马股份有限公司 | 一种改良型炼钢用吹气耐火元件 |
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