JPH11508962A - 鋳物用鉄の製造方法 - Google Patents
鋳物用鉄の製造方法Info
- Publication number
- JPH11508962A JPH11508962A JP53358096A JP53358096A JPH11508962A JP H11508962 A JPH11508962 A JP H11508962A JP 53358096 A JP53358096 A JP 53358096A JP 53358096 A JP53358096 A JP 53358096A JP H11508962 A JPH11508962 A JP H11508962A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- scrap
- weight
- silicon
- charge
- 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
Links
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/14—Arrangements or methods for connecting successive electrode sections
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
- C21B11/10—Making pig-iron other than in blast furnaces in electric furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/08—Manufacture of cast-iron
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/06—Electrodes
- H05B7/07—Electrodes designed to melt in use
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
- H05B7/101—Mountings, supports or terminals at head of electrode, i.e. at the end remote from the arc
- H05B7/102—Mountings, supports or terminals at head of electrode, i.e. at the end remote from the arc specially adapted for consumable electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
- H05B7/107—Mountings, supports, terminals or arrangements for feeding or guiding electrodes specially adapted for self-baking electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Silicon Compounds (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.下記の工程を含む鋳物用鉄を製造する方法であって、 くず鉄またはくず鋼を含む鉄供給源と、ケイ素供給源と、炭素質還元剤との混 合物を有する装入材をサブマージドアーク炉の電極の周囲に供給し、 電気エネルギーを前記電極に供給して、電極間に電気アークを生成し、 くず鉄またはくず鋼,ケイ素供給源および炭素質還元剤を、炉の中で電極間の アークによって加熱して、くず鉄またはくず鋼を融解させ、ケイ素含有量が約0 .05重量%〜9.5重量%の鋳物用鉄を製造する方法。 2.装入材を連続的に供給し、前記炉から融解した鋳物用鉄を連続的に取り出す 、請求の範囲第1項に記載の方法。 3.くず鉄またはくず鋼を融解させ、炭素含有量が約0.01〜4.5重量%の 鋳物用鉄を製造する、請求の範囲第1項に記載の方法。 4. (取り消し) 5.ケイ素供給源は実質的に純粋である珪石または砂である、請求の範囲第1項 に記載の方法。 6.炭素質還元剤は、ウッドチップ,炭,木炭,石炭,石油コークス,歴青コー クスおよびこれらの混合物からなる群から選択される、請求の範囲第1項に記載 の方法。 7.くず鉄またはくず鋼を融解させ実質的にスラグを伴うことなく鋳物用鉄を製 造する、請求の範囲第1項に記載の方法。 8.鉄供給源は少なくとも50重量%のくず鉄またはくず鋼を含む、請求の範囲 第1項に記載の方法。 9.鉄供給源は少なくとも約90重量%のくず鉄またはくず鋼を含む、請求の範 囲第1項に記載の方法。 10.装入材のケイ素供給源は、装入材の全重量を基準として約0.01〜20 重量%のシリカを含む、請求の範囲第1項に記載の方法。 11.装入材は、装入材中の鉄の重量を基準として少なくとも約5.0重量%の 前記炭素質還元剤を含む、請求の範囲第1項に記載の方法。 12.装入材としてコークスを用いない、請求の範囲第1項に記載の方法。 13.前記サブマージドアーク炉は、それぞれ一つの下端部を有する、間隔を開 けて設けた少なくとも二本の電極を有し、 融解金属浴の上方に隔離された状態で前記電極の前記端部を前記装入材の中に 浸漬させて、前記浴の上方でアークゾーンを生成する、請求の範囲第1項に記載 の方法。 14.前記電極の前記端部を前記装入材の中に少なくとも約2フィート浸漬させ る、請求の範囲第13項に記載の方法。 15.前記電極端部を融解金属浴から約1フィート隔離して、前記装入材の中に 前記電極を浸漬させる、請求の範囲第13項に記載の方法。 16.前記炉は少なくとも一本の電極を有し、約100ボルトの電位を少なくと も一本の電極に通電する、請求の範囲第1項に記載の方法。 17.ケイ素供給源はシリカであり、前記シリカを炭素質還元剤の存在下におい て製錬してケイ素を生成させ、 ケイ素含有量が約0.05〜9.5重量%である鋳物用鉄を製造する、請求の 範囲第1項に記載の方法。 18.前記サブマージドアーク炉はプラズマサブマージドアーク炉である、請求 の範囲第1項に記載の方法。 19.くず鉄またはくず鋼を融解して、炭素含有量が約2〜4重量%の前記鋳物 用鉄を製造する、請求の範囲第1項に記載の方法。 20.くず鉄またはくず鋼を融解して、ケイ素含有量が約0.5〜4.0重量% の前記鋳物用鉄を製造する、請求の範囲第1項に記載の方法。 21.鉄供給源を前記炉の中において華氏2,100度と華氏3,200度との 間の温度において融解させる、請求の範囲第1項に記載の方法。 22.鋳物用鉄を製造する連続方法であって、 くず鉄またはくず鋼、ケイ素供給源および炭素質還元剤を含む装入材をサブマ ージドアーク炉の電極の周囲に連続的に供給し、 電気エネルギーを電極に供給して、電極間に電気アークを生成し、および炉の 中で電極間の電気アークによって炭素質還元剤の存在下においてくず鉄またはく ず鋼を融解させると同時にケイ素供給源を製錬してケイ素を生成させ、かつ実質 的にスラグを伴うことなく、ケイ素含有量が約0.05重量%〜9.5重量%、 また炭素含有量が約0.01〜4.5重量%の鋳物用鉄を製造する方法。 23.くず鉄またはくず鋼の粒径が約60cm以下である、請求の範囲第22項に 記載の方法。 24.くず鉄またはくず鋼の粒径が約0.5cm以下である、請求の範囲第22項 に記載の方法。 25.装入材は実質的に鉄鉱石およびフェロシリコンを含まない、請求の範囲第 22項に記載の方法。 26.装入材は前記装入材中の鉄の重量を基準として少なくとも約5.0重量部 %のウッドチップを含有する、請求の範囲第22項に記載の方法。 27.シリカ供給源は実質的に純粋な珪石である、請求の範囲第22項に記載の 方法。 28.鋳物用鉄のケイ素含有量は、約0.25〜3.0重量%である、請求の範 囲第22項に記載の方法。 29.鋳物用鉄のケイ素含有量は約2.0重量%である、請求の範囲第22項に 記載の方法。 30.前記装入材は実質的にコークスの不在下で前記炉の中に供給される、請求 の範囲第22項に記載の方法。 31.炭素質還元剤は、木炭,ウッドチップ,石炭,コークスおよびこれらの混 合物からなる群より選択される、請求の範囲第22項に記載の方法。 32.くず鉄またはくず鋼は少なくとも約98重量%の鉄を含有する、請求の範 囲第22項に記載の方法。 33.炉を約華氏2,100度と約華氏3,200度との間の浴温度において操 作運転する、請求の範囲第22項に記載の方法。 34.前記装入材をDCサブマージドアーク炉の中において加熱する、請求の範 囲第1項に記載の方法。 35.鋳物用鉄を製造する連続方法であって、 くず鉄またはくず鋼、ケイ素供給源および炭素質還元剤の混合物を含む装入材 をDCサブマージドアーク炉の一本の電極の周囲に連続的に供給して、装入材ベ ッドを形成し、 電気エネルギーを電極に供給して、電極間に電気アークを生成し、 電気アークによって前記炭素質還元剤の存在下において、前記くず鉄またはく ず鋼を融解させると同時に前記ケイ素供給源を製錬して、ケイ素を生成させ、か つ実質的にスラグを伴うことなくケイ素含有量が約0.05重量%〜9.5重量% 、また炭素含有量が約0.01重量%〜4.5重量%の鋳物用鉄を製造する方法 。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/431,845 US5588982A (en) | 1995-05-01 | 1995-05-01 | Process for producing foudry iron |
US08/431,845 | 1995-05-01 | ||
PCT/US1996/006935 WO1996034988A1 (en) | 1995-05-01 | 1996-05-01 | Process for producing foundry iron |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11508962A true JPH11508962A (ja) | 1999-08-03 |
JP3699123B2 JP3699123B2 (ja) | 2005-09-28 |
Family
ID=23713696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53358096A Expired - Fee Related JP3699123B2 (ja) | 1995-05-01 | 1996-05-01 | 鋳物用鉄の製造方法 |
Country Status (12)
Country | Link |
---|---|
US (2) | US5588982A (ja) |
EP (1) | EP0871781B1 (ja) |
JP (1) | JP3699123B2 (ja) |
KR (1) | KR100270635B1 (ja) |
CN (1) | CN1050634C (ja) |
AT (1) | ATE221133T1 (ja) |
AU (1) | AU5748996A (ja) |
BR (1) | BR9608130A (ja) |
CA (1) | CA2219763C (ja) |
DE (1) | DE69622587T2 (ja) |
RU (1) | RU2144571C1 (ja) |
WO (1) | WO1996034988A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011523768A (ja) * | 2008-06-06 | 2011-08-18 | オウトテック オサケイティオ ユルキネン | 密封装置 |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5912916A (en) * | 1995-05-01 | 1999-06-15 | Alabama Power Company | Electric furnace with insulated electrodes and process for producing molten metals |
US5588982A (en) * | 1995-05-01 | 1996-12-31 | Alabama Power Company | Process for producing foudry iron |
WO1997012065A1 (fr) * | 1995-09-27 | 1997-04-03 | Sumitomo Metal Industries, Ltd. | Procede de fusion de ferrailles contenant de l'etain |
HRP970303B1 (en) * | 1996-06-05 | 2002-06-30 | Holderbank Financ Glarus | Method for making pozzolans, synthetic blast-furnance slag, belite or alite clinkers, and pig-iron alloys, from oxidic slag and a device for implementing this method |
DE19632403C1 (de) * | 1996-08-02 | 1998-03-26 | Mannesmann Ag | Verfahren und Vorrichtung zur Erzeugung von siliziumreichen Gießereiroheisen |
WO1998011263A1 (de) * | 1996-09-10 | 1998-03-19 | 'holderbank' Financiere Glarus Ag | Verfahren zum abtrennen von zinn sowie erforderlichenfalls von kupfer aus schrottschmelzen, insbesondere weissblechschmelzen oder metallischen schmelzen |
GB2324081A (en) * | 1997-04-07 | 1998-10-14 | Heckett Multiserv Plc | Additives for Electric Arc Furnace |
AU4139100A (en) * | 1999-02-02 | 2000-08-29 | Hylsa S.A. De C.V. | Method and apparatus for preheating of direct reduced iron used as feed to an electric arc furnace |
US6342181B1 (en) | 2000-03-17 | 2002-01-29 | The Curators Of The University Of Missouri | Corrosion resistant nickel-based alloy |
US7591917B2 (en) * | 2000-10-02 | 2009-09-22 | Nucor Corporation | Method of producing steel strip |
DE102005051232A1 (de) * | 2005-10-26 | 2007-05-03 | Sms Demag Ag | Steuervorrichtung für Wechselstrom-Reduktionsöfen |
JP2011232105A (ja) * | 2010-04-26 | 2011-11-17 | Nissabu Co Ltd | 鋳鉄の熱分析用容器 |
WO2012177990A1 (en) * | 2011-06-24 | 2012-12-27 | Graftech International Holdings Inc. | Slag freeze-lining for electronic arc furnace |
CN104041180B (zh) * | 2011-11-11 | 2016-02-03 | 电化株式会社 | 自焙电极上端检测装置及自焙电极上端管理方法 |
CN103526025A (zh) * | 2013-10-22 | 2014-01-22 | 河南省西保冶材集团有限公司 | 一种铁合金炉料生产系统 |
CN105986121A (zh) * | 2015-03-02 | 2016-10-05 | 石嘴山市宝马兴庆特种合金有限公司 | 一种利用山皮石、除尘微粉生产多元合金的方法 |
JP6466869B2 (ja) * | 2016-02-29 | 2019-02-06 | パンパシフィック・カッパー株式会社 | 銅製錬炉の操業方法 |
ITUA20163986A1 (it) | 2016-05-31 | 2017-12-01 | Tenova Spa | Metodo ed apparato per la produzione di ghisa, ghisa prodotta secondo detto metodo |
US11391515B2 (en) | 2016-12-02 | 2022-07-19 | Tenova S.P.A. | Convertible metallurgical furnace and modular metallurgical plant comprising said furnace for conducting production processes for the production of metals in the molten state, in particular steel or cast iron |
DE102017220655A1 (de) | 2017-11-20 | 2019-05-23 | Sms Group Gmbh | Verfahren zur Herstellung einer metallischen Schmelze in einem Ofen |
CN108118109A (zh) * | 2018-02-11 | 2018-06-05 | 江西亿丰精密铸造有限公司 | 一种全废钢熔炼铸铁系统 |
BR112021010228B1 (pt) * | 2018-12-07 | 2023-12-05 | Nippon Steel Corporation | Carburador que realiza carburação com respeito a ferro fundido acomodado em um forno elétrico ou uma panela de fundição, e, método de carburação que usa o carburador |
CN111044434B (zh) * | 2019-12-31 | 2022-02-15 | 太原科技大学 | 一种熔化极气体保护焊熔滴过渡过程的模拟装置及方法 |
WO2024023568A1 (en) * | 2022-07-29 | 2024-02-01 | Arcelormittal | A method of manufacturing molten pig iron into an electrical smelting unit |
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US242219A (en) * | 1881-05-31 | Manufacture of gloves and lacings | ||
US2242219A (en) * | 1939-04-26 | 1941-05-20 | Thaddeus F Baily | Process for melting and refining ferrous metals |
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FI79560B (fi) * | 1988-02-22 | 1989-09-29 | Outokumpu Oy | Smaeltugn och foerfarande foer chargering av det material, som behandlas, in i den. |
CN1040393A (zh) * | 1989-08-08 | 1990-03-14 | 上海工程技术大学 | 钢铁切屑合成铸铁熔炼工艺 |
US5413689A (en) * | 1992-06-12 | 1995-05-09 | Moltech Invent S.A. | Carbon containing body or mass useful as cell component |
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US5588982A (en) * | 1995-05-01 | 1996-12-31 | Alabama Power Company | Process for producing foudry iron |
-
1995
- 1995-05-01 US US08/431,845 patent/US5588982A/en not_active Expired - Lifetime
-
1996
- 1996-05-01 CN CN96194384A patent/CN1050634C/zh not_active Expired - Fee Related
- 1996-05-01 CA CA 2219763 patent/CA2219763C/en not_active Expired - Fee Related
- 1996-05-01 WO PCT/US1996/006935 patent/WO1996034988A1/en active IP Right Grant
- 1996-05-01 AT AT96915821T patent/ATE221133T1/de not_active IP Right Cessation
- 1996-05-01 KR KR1019970707851A patent/KR100270635B1/ko not_active IP Right Cessation
- 1996-05-01 DE DE1996622587 patent/DE69622587T2/de not_active Expired - Fee Related
- 1996-05-01 BR BR9608130A patent/BR9608130A/pt not_active IP Right Cessation
- 1996-05-01 EP EP96915821A patent/EP0871781B1/en not_active Expired - Lifetime
- 1996-05-01 AU AU57489/96A patent/AU5748996A/en not_active Abandoned
- 1996-05-01 RU RU97117936A patent/RU2144571C1/ru not_active IP Right Cessation
- 1996-05-01 JP JP53358096A patent/JP3699123B2/ja not_active Expired - Fee Related
- 1996-12-27 US US08/774,210 patent/US5882374A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011523768A (ja) * | 2008-06-06 | 2011-08-18 | オウトテック オサケイティオ ユルキネン | 密封装置 |
US8837552B2 (en) | 2008-06-06 | 2014-09-16 | Outotec Oyj | Sealing device |
Also Published As
Publication number | Publication date |
---|---|
US5882374A (en) | 1999-03-16 |
CN1050634C (zh) | 2000-03-22 |
CA2219763C (en) | 2001-10-30 |
CA2219763A1 (en) | 1996-11-07 |
DE69622587T2 (de) | 2003-03-27 |
BR9608130A (pt) | 1999-08-10 |
RU2144571C1 (ru) | 2000-01-20 |
KR19990008325A (ko) | 1999-01-25 |
US5588982A (en) | 1996-12-31 |
AU5748996A (en) | 1996-11-21 |
KR100270635B1 (ko) | 2000-12-01 |
ATE221133T1 (de) | 2002-08-15 |
EP0871781B1 (en) | 2002-07-24 |
EP0871781A1 (en) | 1998-10-21 |
CN1186521A (zh) | 1998-07-01 |
EP0871781A4 (ja) | 1998-10-21 |
MX9708345A (es) | 1998-06-30 |
DE69622587D1 (de) | 2002-08-29 |
WO1996034988A1 (en) | 1996-11-07 |
JP3699123B2 (ja) | 2005-09-28 |
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