KR101024993B1 - 고질소 강선 제조방법 및 이를 이용한 가공송전선 - Google Patents
고질소 강선 제조방법 및 이를 이용한 가공송전선 Download PDFInfo
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Abstract
일실시예에 따른 고질소강 제조방법은 가압형 진공유도용해로(VIM)를 사용하여 초기진공을 6×10-5torr로 한 후 아르곤(Ar) 가스를 대기압까지 주입하는 단계와 다시 2차 진공을 6×10-5torr로 한 다음 질소가스를 2기압으로 주입하고 질소강을 구성하는 합금 성분비가 Mn 25~ 35 (wt.%), Cr 25 ~ 35 (wt.%), Ni 10 ~ 20 (wt.%), C 0.5 ~1.0 (wt.%) Fe: 20 ~ 35 (wt.%)를 포함하여 용해시키는 단계를 포함한다.
이러한 방법으로 제조되는 고질소 강선은 12000ppm 이상의 질소함유율을 가지며 뛰어나 기계적 강도특성과 비자성 특성이 있으며 이를 이용하여 전력손실을 저감하여 송전용량을 증가시킨 비자성 강심 알루미늄 가공송전선을 제공한다.
Description
도 2는 본 발명의 일실시예에 따른 질소강 강선을 주위에 사다리꼴 도체를 형성한 가공송전선의 단면을 도시한 도면이다.
도 3은 본 발명의 일실시예에 따른 질소강 강선을 주위에 요철형 사다리꼴 도체를 형성한 가공송전선의 단면을 도시한 도면이다.
| Fe | Mn | Cr | Ni | N | C | Si | PN2 (atm) |
|
| A | Bal. | 35.1 | 24.5 | 14.9 | - | 0.53 | 0.98 | 0.0 |
| B | Bal. | 34.9 | 25.3 | 14.3 | 1.15 | 0.63 | 0.79 | 1.0 |
| C | Bal. | 34.8 | 24.1 | 15.6 | 1.18 | 0.80 | 0.79 | 1.5 |
| d | Bal. | 35.0 | 25.4 | 15.5 | 1.20 | 0.75 | 0.92 | 2.0 |
| 인장강도 (kg/mm2) |
항복강도 (kg/mm2) |
연신율(%) | 투자율 | |
| A | 110 | 95 | 5.0 | < 1.5 |
| B | 190 | 165 | 3.8 | < 1.05 |
| C | 200 | 170 | 3.5 | < 1.04 |
| D | 210 | 180 | 3.2 | < 1.03 |
21, 11,: 강심
12, 13: 사다리꼴 형 도체
22, 23: 요철형 사다리꼴 도체
111, 200, 220, 311: 오스테나이트 조직을 가지는 회절 피크
Claims (13)
- 삭제
- 삭제
- 가압형 진공유도용해로에 질소강을 구성하는 합금성분을 투입하여 초기진공을 6×10 -5torr로 한 후 아르곤(Ar) 가스를 대기압까지 주입하는 제1단계 및 2차 진공을 6×10-5torr로 한 다음 질소가스 분위기의 질소분압을 2기압으로 한 상태에서 상기 질소강을 구성하는 합금성분을 용해시키는 제2단계를 포함하며,
상기 질소강을 구성하는 합금 성분은 Mn 25~ 35 (wt.%), Cr 25 ~ 35 (wt.%), Ni 10 ~ 20 (wt.%), C 0.5 ~1.0 (wt.%), Fe: 20 ~ 35 (wt.%)를 포함하는 것을 특징으로 하는 고질소 강선 제조방법.
- 가압형 진공유도용해로에 질소강을 구성하는 합금성분을 투입하여 초기진공을 6×10 -5torr로 한 후 아르곤(Ar) 가스를 대기압까지 주입하는 제1단계 및 2차 진공을 6×10-5torr로 한 다음 질소가스 분위기의 질소분압을 2기압으로 한 상태에서 상기 질소강을 구성하는 합금성분을 용해시키는 제2단계를 포함하며,
상기 질소강을 구성하는 합금 성분은 Mn: 35 (wt.%), Cr: 25.4 (wt.%), Ni:15.5 (wt.%), C: 0.75 (wt.%), Si: 0.92 (wt.%), Fe: 21 (wt.%)를 포함하는 것을 특징으로 하는 고질소 강선 제조방법.
- 제3항 또는 제4항에 있어서,
상기 고질소 강선의 질소의 농도는 12,000ppm 이상인 것을 특징으로 하는 고질소 강선 제조방법.
- 다수의 고질소 강선이 연선되어 구성되는 강심 및 상기 강심을 감싸는 도체를 구비하며, 상기 고질소 강선의 합금 성분비가 Mn: 25~ 35 (wt.%), Cr: 25 ~ 35 (wt.%), Ni: 10 ~ 20 (wt.%), C: 0.5 ~1.0 (wt.%) Fe: 20 ~ 35 (wt.%)를 포함하는 것을 특징으로 하는 고질소 강선을 이용한 가공 송전선.
- 다수의 고질소 강선이 연선되어 구성되는 강심 및 상기 강심을 감싸는 도체를 구비하며, 상기 고질소 강선의 합금 성분비가 Mn: 35 (wt.%), Cr: 25.4 (wt.%), Ni: 15.5 (wt.%), C: 0.75 (wt.%) Si: 0.92 (wt.%), Fe: 21 (wt.%)를 포함하는 것을 특징으로 하는 고질소 강선을 이용한 가공 송전선.
- 제6항 또는 제7항에 있어서,
상기 고질소 강선의 질소의 농도는 12,000ppm 이상인 것을 특징으로 하는 고질소 강선을 이용한 가공 송전선.
- 제6항 또는 제7항에 있어서,
상기 고질소 강선의 인장강도는 210(kg/mm2) 이면서 투자율은 1.03 이하인 것을 특징으로 하는 고질소 강선을 이용한 가공 송전선.
- 제6항 또는 제7항에 있어서,
상기 도체는 다수의 사다리꼴 형의 알루미늄 소선으로 상기 강심을 원통형으로 감싸는 것을 특징으로 하는 고질소 강선을 이용한 가공 송전선.
- 제10항에 있어서,
상기 사다리꼴 형의 알루미늄 소선 들은 다층으로 형성되는 것을 특징으로 하는 고질소 강선을 이용한 가공 송전선.
- 제10항에 있어서,
상기 사다리꼴 형의 알루미늄 소선 들의 양 측면은 오목한 부분과 볼록한 부분을 포함하며, 인접되는 소선 들이 볼록한 부분과 오목한 부분이 서로 밀접하게 접촉하여 형성한 것을 특징으로 하는 고질소 강선을 이용한 가공 송전선.
- 제10항에 있어서,
상기 알루미늄 소선 들은 다층으로 형성되며, 내층과 외층은 서로 반대방향으로 꼬임을 갖는 것을 특징으로 하는 고질소 강선을 이용한 가공 송전선.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100071593A KR101024993B1 (ko) | 2010-07-23 | 2010-07-23 | 고질소 강선 제조방법 및 이를 이용한 가공송전선 |
| US13/811,232 US9111660B2 (en) | 2010-07-23 | 2010-08-02 | Method for manufacturing high-nitrogen steel wire and overhead power line using same |
| PCT/KR2010/005069 WO2012011622A1 (ko) | 2010-07-23 | 2010-08-02 | 고질소 강선 제조방법 및 이를 이용한 가공 송전선 |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020100071593A KR101024993B1 (ko) | 2010-07-23 | 2010-07-23 | 고질소 강선 제조방법 및 이를 이용한 가공송전선 |
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| KR101024993B1 true KR101024993B1 (ko) | 2011-03-25 |
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| FI126719B (en) | 2013-12-17 | 2017-04-28 | Outotec Finland Oy | Process for the preparation of a manganese-containing iron alloy |
| DE102014116929B3 (de) * | 2014-11-19 | 2015-11-05 | Thyssenkrupp Ag | Verfahren zur Herstellung eines aufgestickten Verpackungsstahls, kaltgewalztes Stahlflachprodukt und Vorrichtung zum rekristallisierenden Glühen und Aufsticken eines Stahlflachprodukts |
| CN105185457A (zh) * | 2015-08-26 | 2015-12-23 | 张健 | 电力网架空输电线路用钢芯铝绞线 |
| CN106981336A (zh) * | 2017-05-04 | 2017-07-25 | 吴金珠 | 一种高效输电钢丝绳 |
| EP3839981A1 (en) * | 2019-12-19 | 2021-06-23 | NKT HV Cables AB | Ac submarine power cable with reduced losses |
| CN111716609B (zh) * | 2020-07-08 | 2022-04-05 | 常州佳冠电子有限公司 | 电容环氧树脂的浇注设备及其浇注工艺 |
| CN114990420B (zh) * | 2022-04-29 | 2023-03-10 | 长沙东鑫环保材料有限责任公司 | 一种铝硼铬氮铁合金及其制备方法和应用 |
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| JP3017063B2 (ja) * | 1995-11-07 | 2000-03-06 | 株式会社神戸製鋼所 | Cr−Ni系ステンレス鋼の全姿勢溶接用高窒素フラックス入りワイヤ |
| US6325766B1 (en) * | 1999-12-01 | 2001-12-04 | Advanced Cardiovascular Systems, Inc. | Guidewire having substantially nickel-free high-nitrogen austenitic stainless steel alloy |
| US7228627B1 (en) * | 2005-12-16 | 2007-06-12 | United States Alumoweld Co., Inc. | Method of manufacturing a high strength aluminum-clad steel strand core wire for ACSR power transmission cables |
-
2010
- 2010-07-23 KR KR1020100071593A patent/KR101024993B1/ko active Active
- 2010-08-02 WO PCT/KR2010/005069 patent/WO2012011622A1/ko not_active Ceased
- 2010-08-02 US US13/811,232 patent/US9111660B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100358286B1 (ko) | 2000-10-13 | 2002-10-25 | 고려상사주식회사 | 질소강 강선을 이용한 가공송전선 |
| JP2003221615A (ja) * | 2002-01-30 | 2003-08-08 | Daido Steel Co Ltd | 高窒素鋼の製造方法 |
| KR100507904B1 (ko) | 2003-01-10 | 2005-08-10 | 한국전기연구원 | 가공송전선용 고강도 비자성 스테인리스강선, 이를강심으로 채용한 가공송전선 및 이들 각각의 제조방법 |
| KR100538692B1 (ko) * | 2003-12-09 | 2005-12-23 | 한국기계연구원 | 저압 유도용해법을 이용한 고질소 스테인리스강 제조방법및 그 방법으로 제조된 고질소 스테인리스강 |
Also Published As
| Publication number | Publication date |
|---|---|
| US9111660B2 (en) | 2015-08-18 |
| WO2012011622A1 (ko) | 2012-01-26 |
| US20130146350A1 (en) | 2013-06-13 |
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