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1. 发明公开

KR1020140110592A 전기로 제강조업 중 턴디쉬 플럭스 투입방법 有权
标题翻译：提供使用电炉的钢制造操作的连接器的方法
公开(公告)号：KR1020140110592A
公开(公告)日：2014-09-17
申请号：KR1020130025205
申请日：2013-03-08
申请人： 동국제강주식회사
发明人： 허정호 , 홍성환 , 김병찬 , 김동식
IPC分类号： B22D11/108
摘要： The present invention relates to a method for inserting a tundish flux during a steelmaking in an electric furnace, capable of enhancing the effect of removing inclusions from steel. The method for inserting a tundish flux during a steelmaking in an electric furnace according to an embodiment of the present invention includes a process for primarily inserting a tundish flux to molten steel of a tundish in a first soft cast from which a soft casting process starts; and a process for additionally inserting a tundish flux to the molten steel of a tundish in a n-th soft cast additionally occurring later on.
摘要翻译：本发明涉及一种在电炉炼钢期间插入中间包焊剂的方法，能够提高从钢中去除夹杂物的效果。在本发明的一个实施例的电炉中，在炼钢期间插入中间包焊剂的方法包括一个主要将中间包熔剂插入软浇铸工艺开始的第一软铸件中的中间包钢水的方法; 以及另外在上述另外发生的第n软铸造中将中间包通量另外插入中间包的钢水的方法。

2. 发明公开

KR1020140094929A 연속주조기용 주형의 온도 측정장치 无效
标题翻译：测量连续铸造模具温度的装置
公开(公告)号：KR1020140094929A
公开(公告)日：2014-07-31
申请号：KR1020130007598
申请日：2013-01-23
申请人： 동국제강주식회사
发明人： 남기영 , 김병찬 , 김동식 , 임기범
IPC分类号： B22D11/16 , B22D2/00 , G01K7/02
摘要： The present invention relates to an apparatus for measuring the temperature of a mold for a continuous casting machine comprising a thermocouple inserted into a mold main body; a combining member extended from a mold skin covering the mold main body to the inside of the mold main body, and having an inner through hole into which the thermocouple is penetrated; and a thermocouple fixing member installed between the combining member and the thermocouple in the upper part inside the mold skin.
摘要翻译：本发明涉及一种用于测量连续铸造机的模具的温度的装置，包括插入模具主体中的热电偶; 组合构件从覆盖模具主体的模具皮肤延伸到模具主体的内部，并且具有穿过热电偶的内部通孔; 以及安装在组合构件和模具外壳内部上部的热电偶之间的热电偶固定构件。

3. 发明授权

KR101351532B1 샤프트 타입 전기로 및 이를 이용한 조업 방법 有权
标题翻译： SHAFT型电弧炉及其使用方法
公开(公告)号：KR101351532B1
公开(公告)日：2014-01-24
申请号：KR1020120083080
申请日：2012-07-30
申请人： 동국제강주식회사
发明人： 홍성환 , 김영환 , 정훈제 , 김동식 , 양성호 , 채혁진
IPC分类号： F27B3/00 , F27B1/09
CPC分类号： C21C5/52 , C21C7/072 , C21C2005/5258 , C21C2100/02 , F27D99/0006 , F27D99/0033 , F27D2019/0034 , F27M2001/10
摘要： The present invention provides a shaft-type electric furnace and an operating method using the shaft-type electric furnace which can increase energy efficiency and can reduce work time and manufacturing costs. The shaft-type electric furnace according to an embodiment of the present invention comprises a shaft, an electric furnace, a primary combustion device, and a secondary combustion device. Steel scraps are continuously entered into the shaft. The electric furnace has a connection path connected to the shaft. The electric furnace melts the steel scraps supplied from the shaft through the connection path and discharges the generated exhaust gas to the shaft through the connection path. The primary combustion device has: a burner jacket arranged on the connection path; a carbon inlet; and a first oxygen inlet. The carbon inlet and the first oxygen inlet are arranged in the lower part of the burner jacket to supply a carbon source and oxygen, respectively, so that primary combustion reaction can occur in the electric furnace. The secondary combustion device is integrated with the primary combustion device and has multiple second oxygen inlets for additionally supplying the oxygen to make secondary combustion reaction occur in the exhaust gas discharged to the shaft.
摘要翻译：本发明提供一种轴式电炉和使用轴式电炉的操作方法，其可以提高能量效率并且可以减少工作时间和制造成本。根据本发明实施例的轴式电炉包括轴，电炉，一次燃烧装置和二次燃烧装置。钢屑连续进入轴内。电炉具有连接到轴的连接路径。电炉通过连接路径熔化从轴供给的钢屑，并将生成的废气通过连接路径排出到轴上。主燃烧装置具有：布置在连接路径上的燃烧器护套; 碳入口和第一氧气入口。碳入口和第一氧气入口设置在燃烧器套管的下部，以分别供应碳源和氧气，使得电炉中可能发生一次燃烧反应。二次燃烧装置与初级燃烧装置一体化，并具有多个第二氧气进口，用于额外供应氧气，使排放到轴上的废气中产生二次燃烧反应。

4. 发明公开

KR1020130073675A 샤프트형 전기로 및 그의 2차 연소 조업방법 无效
标题翻译： SHAFT型电弧炉及其后燃烧运行方法
公开(公告)号：KR1020130073675A
公开(公告)日：2013-07-03
申请号：KR1020110141648
申请日：2011-12-23
申请人： 동국제강주식회사
发明人： 김영환 , 홍성환 , 양성호 , 김동식 , 임기범
IPC分类号： F27B3/08 , F27B3/10
CPC分类号： C21C5/5217 , F27B3/08 , F27B3/205 , F27D1/1808 , F27D99/0006 , F27D2099/0021
摘要： PURPOSE: A shaft type electric furnace and a second combustion working method thereof are provided to effectively increase the preheating temperature of iron scrap which is provided in a shaft by improving a secondary combustion rate of a flue gas. CONSTITUTION: A shaft type electric furnace includes a furnace body (10), a cover unit (20), a shaft (30), a carbon supply unit (40), and an oxygen supply unit (50). An accommodation space which accommodates iron scrap is formed inside the furnace body. A steel tapping outlet which discharges molten steel is provided on the bottom part of the furnace body. The cover unit is equipped with an electrode unit on the upper part of the furnace body. The shaft is connected to one side of the furnace body, and supplies the iron scrap to the inside of the furnace body. The carbon supply unit supplies carbon to the inside of the furnace body. The oxygen supply unit supplies oxygen to the inside of the furnace body. [Reference numerals] (AA) Emission direction of exhaust gas
摘要翻译：目的：提供一种轴式电炉及其第二燃烧加工方法，通过提高废气的二次燃烧率，有效地提高设在轴上的废铁的预热温度。构成：轴型电炉包括炉体（10），盖单元（20），轴（30），碳供应单元（40）和供氧单元（50）。在炉体内部形成容纳废铁的容纳空间。在炉体的底部设置有排出钢水的钢出料口。盖单元在炉体的上部配备有电极单元。轴连接到炉体的一侧，并将铁屑供应到炉体的内部。碳供应单元向炉体内部供应碳。供氧单元向炉体内部供应氧气。（附图标记）（AA）排气的排放方向

5. 发明授权

KR101499943B1 저탄소강 주편의 주조조직 예측방법 有权
标题翻译：铸造结构对低碳钢铸件试样的研究
公开(公告)号：KR101499943B1
公开(公告)日：2015-03-06
申请号：KR1020130133165
申请日：2013-11-04
申请人： 동국제강주식회사
发明人： 허정호 , 김동식
IPC分类号： B22D11/16 , G01N33/20 , C22C38/04
CPC分类号： B22D11/16 , B22D11/124 , B22D11/126 , B22D41/50 , C22C38/02 , C22C38/04 , G01N33/20
摘要： 본 발명은 저탄소강 주편의 주조조직 예측방법으로서, 더욱 상세하게는 연속주조공정을 통한 저탄소강에서 주편 주조조직의 경계를 예측하는 저탄소강 주편의 주조조직 예측방법에 관한 것이다. 본 발명의 일실시예는 저탄소강 주편의 주조조직 예측방법으로서, 상기 주편의 중심으로부터 표면을 향하여 미리 정해진 원소의 성분함량(X)을 측정하는 단계, 상기 성분함량(X)을 용강제조시의 최종 성분함량값(X
0 )으로 나누어 편석도(X/X
0 )를 계산하는 단계, 상기 주편의 중심으로부터 거리에 따른 상기 편석도(X/X
0 )의 추이에 따라 주조조직 모델링에서의 등축정두께(T
m )를 예측하는 단계 및 상기 모델링에서의 등축정두께(T
m )를 이용하여 상기 주편의 등축정두께(T)를 관계식 "T(mm)=1.1339×T
m (mm)-8.071"에 의해 예측하는 단계를 포함하는 것을 특징으로 하는 저탄소강 주편의 주조조직 예측방법을 제공한다.
摘要翻译：本发明涉及一种预测低碳钢板坯的铸造结构的方法，更具体地说，涉及一种能够预测低碳钢板坯的铸造结构的方法，该方法能够预测低碳钢板坯结构的边界钢通过连续铸造步骤。根据本发明的实施例，提供了一种预测低碳钢板坯的铸造结构的方法，包括：从板坯的中心向表面测量预定元件的成分含量（X）的步骤; 通过在制造钢水时将成分含量（X）除以最终成分含量值（X_0）来计算分离（X / X_0）的步骤; 根据距离板坯中心的距离，根据偏析趋势（X / X_0）预测铸造结构建模中的等轴厚度（T_m）的步骤; 以及通过在建模中使用等轴厚度（T_m），通过“T（mm）= 1.1339×T_m（mm）-8.071”的关系来预测板坯的等轴厚度（T）的步骤。

6. 发明公开

KR1020120124229A 실리콘망간 합금철 제조시 발생된 슬래그를 재활용하는 제강방법 有权
标题翻译：炼钢方法回收SiMn渣
公开(公告)号：KR1020120124229A
公开(公告)日：2012-11-13
申请号：KR1020110041997
申请日：2011-05-03
申请人： 동국제강주식회사
发明人： 홍주형 , 김동식 , 유정민 , 허정호 , 김현균 , 정대웅
IPC分类号： C21C5/52
CPC分类号： Y02P10/216 , C21C7/0087 , C21C7/0075 , C21C2200/00 , Y02P10/242
摘要： PURPOSE: A steel making method for recycling slag produced during manufacture of silicon-manganese alloy steel is provided to make steel using rare metal and valuable metal recovered from the slag. CONSTITUTION: According to a steel making method for recycling slag produced during manufacture of silicon-manganese alloy steel, slag(50) and MnO reductant produced during manufacture of silicon-manganese alloy steel is inserted into molten steel in a tapping process of an electric furnace(20) so that alloy elements containing Mn and Si included in the slag are reduced and recovered into the molten steel. The slag comprises MnO of 5-30weight%, SiO2 of 30-60weight%, Al2O3 of 10-30weight%, CaO of 10-30 weight%, MgO of 5-20weight%, and Fe and inevitable impurities of the remaining amount. [Reference numerals] (10) Iron scrap; (20) Electric furnace; (30) Ladle furnace; (40) Continuous casting; (50) Slag produced during making of Si-Mn alloy steel; (AA) Injection; (BB) Tapping
摘要翻译：目的：提供一种用于回收在硅锰合金钢制造过程中产生的炉渣的钢铁生产方法，以使用稀土金属和从渣中回收的有价值金属制造钢。构成：根据在硅锰合金钢的制造中回收炉渣的炼钢方法，将硅锰合金钢制造时产生的炉渣（50）和MnO还原剂在电炉的攻丝过程中插入钢水（20），使得包含在炉渣中的含有Mn和Si的合金元素被还原并回收到钢水中。炉渣含有5-30重量％的MnO，30-60重量％的SiO 2，10-30重量％的Al 2 O 3，10-30重量％的CaO，5〜20重量％的MgO，剩余量的Fe和不可避免的杂质。（附图标记）（10）废铁; （20）电炉; （30）钢包炉; （40）连铸; （50）在制造Si-Mn合金钢时产生的炉渣; （AA）注射液; （BB）攻丝

7. 发明授权

KR101458202B1 전기로 제강조업 중 턴디쉬 플럭스 투입방법 有权
标题翻译：提供使用电炉的钢制造操作的连接器的方法
公开(公告)号：KR101458202B1
公开(公告)日：2014-11-05
申请号：KR1020130025205
申请日：2013-03-08
申请人： 동국제강주식회사
发明人： 허정호 , 홍성환 , 김병찬 , 김동식
IPC分类号： B22D11/108
摘要： 본 발명은 강 중 개재물 제거 효과를 증가시킬 수 있는 전기로 제강조업 중 턴디쉬 플럭스 투입 방법에 관한 것이다. 본 발명의 실시예에 따른 전기로 제강조업 중 턴디쉬 플럭스 투입방법은 연주공정이 시작되는 제1연주에서, 턴디쉬의 용강에 턴디쉬 플럭스를 1차 투입하는 공정; 그리고 연주공정 중의 제n연주에서, 턴디쉬의 용강에 턴디쉬 플럭스를 추가 투입하는 공정을 포함하여 이루어진다.

8. 发明授权

KR101445774B1 전기로 슬래그 중 산화철 함량의 분석방법 有权
标题翻译：电弧炉操作中FeO含量的分析方法
公开(公告)号：KR101445774B1
公开(公告)日：2014-10-07
申请号：KR1020130049326
申请日：2013-05-02
申请人： 동국제강주식회사
发明人： 김영환 , 이성우 , 김동식 , 양성호
IPC分类号： G01N21/00 , G01N33/20 , G06T7/00
摘要： An embodiment of the present invention provides a method of analyzing the iron oxide content of slag in an electric furnace, which includes cooling a slag; pulverizing the cooled slag; manufacturing a pellet by compressing the pulverized slag after putting the slag in a measurement container; taking a photograph of the pellet; obtaining a luminous intensity value of the pellet image from the pellet image through an image analysis program; and obtaining the iron oxide (FeO) content of the slag from the luminous intensity value of the pellet image.
摘要翻译：本发明的一个实施方案提供了一种分析电炉中炉渣的氧化铁含量的方法，包括冷却炉渣; 粉碎冷却的炉渣; 通过在将炉渣放入测量容器之后压缩粉碎的炉渣来制造颗粒; 拍照片; 通过图像分析程序从颗粒图像获得颗粒图像的发光强度值; 并从丸粒图像的发光强度值获得炉渣的氧化铁（FeO）含量。

9. 发明授权

KR101431795B1 전기로 제강시 슬래그 탈산 방법 有权
标题翻译：用于电炉操作的SLAG脱氧
公开(公告)号：KR101431795B1
公开(公告)日：2014-08-20
申请号：KR1020120153880
申请日：2012-12-26
申请人： 동국제강주식회사
发明人： 유정민 , 기응수 , 김동식
IPC分类号： C21C7/06 , C21C5/52
CPC分类号： Y02P10/216
摘要： 본 발명의 일실시예는 전기로 제강시 슬래그 탈산 방법으로서, 전기로의 용강을 레이들(ladle)로 출강하는 단계; 및 출강 완료된 레이들 상부의 슬래그층에 알루미늄계 슬래그 탈산제와 생석회를 혼합 투입하는 단계를 포함하여 이루어지는 것을 특징으로 하는 전기로 제강시 슬래그 탈산 방법을 제공한다.

10. 发明公开

KR1020140092432A 전기로 제강시 슬래그 탈산 방법 有权
标题翻译：用于电炉操作的SLAG脱氧
公开(公告)号：KR1020140092432A
公开(公告)日：2014-07-24
申请号：KR1020120153880
申请日：2012-12-26
申请人： 동국제강주식회사
发明人： 유정민 , 기응수 , 김동식
IPC分类号： C21C7/06 , C21C5/52
CPC分类号： Y02P10/216 , C21C7/0087 , C21C7/0075
摘要： The present invention according to an embodiment relates to a method for deoxidizing slag during a steel manufacturing process using an electric furnace. The method comprises the steps of: tapping molten steel in the electric furnace into a ladle; and injecting an aluminum-based deoxidizer for slag and quicklime, which are mixed, into a slag layer on an upper side of the tapped ladle.
摘要翻译：根据实施方式的本发明涉及在使用电炉的钢制造过程中使炉渣脱氧的方法。该方法包括以下步骤：将电炉中的钢水从钢包中取出; 并将混合的用于炉渣和生石灰的铝基脱氧剂注入到轻敲钢包的上侧的炉渣层中。

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