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公开(公告)号:KR100959931B1
公开(公告)日:2010-05-26
申请号:KR1020080021399
申请日:2008-03-07
Applicant: 한국과학기술연구원
IPC: C01B21/076 , C01G23/00 , B82Y40/00
CPC classification number: C01B21/0763 , B82Y30/00 , C01D15/04 , C01P2002/72 , C01P2004/04 , C01P2004/64 , Y10T428/2982
Abstract: 본 발명은 질화티타늄 분말의 제조 방법에 관한 것이다. 질화티타늄 분말을제조하기 위하여 우선 염화티타늄 분말 및 질화리튬 분말을 혼합하여 혼합 분말을 제조한다. 이어서 혼합 분말과 복수의 볼을 반응 용기에 투입한다. 그 후 반응 용기에 불활성 가스를 충전하고 반응 용기를 밀폐한다. 그리고 혼합 분말을 고에너지 볼밀링하여 질화티타늄 및 염화리튬을 포함하는 복합 분말을 제조한다. 이어서 복합 분말을 물에 용해 및 여과한다. 그 후 여과된 복합 분말을 건조하여 질화티타늄 분말을 회수한다.
질화티타늄, 나노, 고에너지 볼밀링-
公开(公告)号:KR1020090118271A
公开(公告)日:2009-11-18
申请号:KR1020080043957
申请日:2008-05-13
Applicant: 한국과학기술연구원
CPC classification number: C22C38/30 , C21D2211/005 , C22C33/00 , C22C38/001 , C22C38/004 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C2202/00
Abstract: PURPOSE: Ferritic resisting steel and a manufacturing method thereof are provided to increase driving efficiency of a power plant, and to improve creep strength to the constant level. CONSTITUTION: A manufacturing method of ferritic resisting steel comprises the following steps of: preparing pre-processed steel(S10); performing an austenizing process of the pre-processed steel at a temperature of 1050°C ~ 1150°C(S20); and performing a tempering process of the pre-processed steel at the temperature of 650°C ~ 780°C(S30). The -processed steel includes chrome of 8 ~ 12 wt%, cobalt of 1 ~ 5 wt%, nitrogen of 0.02 ~ 0.1 wt%, vanadium of 0.1 ~ 0.3 wt%, niobium of 0.03 ~ 0.1 wt% and carbon etc.
Abstract translation: 目的:提供铁素体耐钢及其制造方法,以提高发电厂的驱动效率,并将蠕变强度提高到恒定水平。 构成:铁素体抗钢的制造方法包括以下步骤:制备预处理钢(S10); 在1050℃〜1150℃的温度下进行预处理钢的奥氏体化处理(S20)。 并在650℃〜780℃的温度下进行预处理钢的回火处理(S30)。 处理钢包括8〜12重量%的铬,1〜5重量%的钴,0.02〜0.1重量%的氮,0.1〜0.3重量%的钒,0.03〜0.1重量%的铌和碳。
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13.
公开(公告)号:KR1020040106622A
公开(公告)日:2004-12-18
申请号:KR1020030037402
申请日:2003-06-11
Applicant: 한국과학기술연구원
IPC: B22F9/00
Abstract: PURPOSE: To provide a preparation method of Ti2AlC powder by reaction milling, wherein Ti2AlC powder is economically prepared by reacting Ti, Al and C powder at an ordinary temperature within a short time of several hours using high-energy ball milling. CONSTITUTION: The preparation method comprises a step of mixing 45 to 55 atom% of Ti powder, 25 to 35 atom% of Al powder and 15 to 25 atom% of C powder; a step of injecting the mixture into a reactor along with balls having diameter of 5 to 30 mm; a step of charging argon(Ar) into the reactor; a step of performing high-energy ball milling on the mixture.
Abstract translation: 目的:通过反应研磨提供Ti2AlC粉末的制备方法,其中通过使用高能球磨在几小时内在常温下使Ti,Al和C粉末经济地制备Ti2AlC粉末。 构成:该制备方法包括将45〜55原子%的Ti粉末,25〜35原子%的Al粉末和15〜25原子%的C粉末混合的工序; 将混合物与直径为5至30mm的球一起注入反应器的步骤; 将氩(Ar)装入反应器的步骤; 在混合物上进行高能球磨的步骤。
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公开(公告)号:KR1020040006739A
公开(公告)日:2004-01-24
申请号:KR1020020041107
申请日:2002-07-15
IPC: C23C2/06
CPC classification number: B05C11/101 , C23C2/003 , C23C2/06
Abstract: PURPOSE: An apparatus and a method for controlling aluminum concentration in molten zinc pot of continuous hot dip galvanizing line are provided to control concentration of aluminum so that the recommended ingot is automatically injected into the molten zinc pot by estimating concentration of aluminum and recommending an ingot for maintaining a target aluminum concentration based on the estimated aluminum concentration. CONSTITUTION: The apparatus comprises a sensor(100) for detecting strip speed, plating pickup weight, strip lead-in temperature, strip thickness, strip width, plating pot temperature and plating pot level; a control means(200) for recommending the optimum ingot comprising aluminum content that is the nearest to the estimated aluminum concentration of the present plating pot and controlling injection of the recommended ingot by converting detection signals detected by the sensor(100) into digital signals respectively, calculating aluminum content flown out from the plating pot by dross formation, reaction layer formation and plating adhesion by numerical value model using the data, calculating aluminum content flown in the plating pot by compound ingot injected and estimating aluminum concentration of the present plating pot using the plating pot inflow aluminum content and plating pot outflow aluminum content; and an injection means(300) for automatically injecting the ingot recommended according to control of the control means(200) into the plating pot, wherein the control means(200) comprises signal conversion part(210), control part(220), screen display part(230), aluminum concentration operating part(240) and ingot recommendation/injection part(250).
Abstract translation: 目的:提供一种用于控制连续热浸镀锌线的熔融锌锅中铝浓度的装置和方法,以控制铝的浓度,以便通过估计铝的浓度和推荐锭将推荐的锭自动注入熔融锌锅中 用于基于估计的铝浓度维持目标铝浓度。 构成:该装置包括用于检测剥离速度,电镀拾取重量,条带引入温度,条带厚度,条带宽度,电镀槽温度和电镀槽电平的传感器(100)。 控制装置(200),用于推荐最佳铸块,其包含最接近本镀层的估计铝浓度的铝含量,并通过将由传感器(100)检测到的检测信号转换为数字信号来控制推荐锭的注入 通过使用数据通过数值模型计算通过浮渣形成从电镀槽流出的铝含量,反应层形成和电镀附着力,通过注入复合铸锭计算电镀锅中的铝含量,并使用本发明的电镀罐估算铝浓度 电镀槽内流入的铝含量和电镀槽流出铝含量; 以及用于根据控制装置(200)的控制推荐的锭子自动注入到电镀锅中的喷射装置(300),其中控制装置(200)包括信号转换部分(210),控制部分(220),屏幕 显示部件(230),铝浓缩操作部件(240)和锭子推荐/注射部件(250)。
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公开(公告)号:KR1020010091517A
公开(公告)日:2001-10-23
申请号:KR1020000013317
申请日:2000-03-16
Applicant: 한국과학기술연구원
IPC: C25C1/12
CPC classification number: Y02P10/236
Abstract: PURPOSE: An apparatus for electrolyzing high purity electrolytic copper cathode is provided to manufacture a commercially mass produced electrolytic copper cathode having a purity of 99.99% into the high purity electrolytic copper cathode having a purity of 99.9999% through the electrolytic refining process for only one time. CONSTITUTION: The apparatus for electrolyzing high purity electrolytic copper cathode comprises a cartridge(3) having a porous wall surface mounted between the anode(2) and the cathode(6) of a commercial electrolytic copper cathode; and a copper material having a large specific surface area which is filled into the cartridge, wherein the electrolyte eluted from the anode is advanced to the cathode(6) by passing through the cartridge filled with the copper material and a diaphragm(5), wherein the copper material is one or more materials selected from the group consisting of copper fine wire and copper powder, wherein the apparatus further comprises an infusion hole for infusing an inert gas into the cartridge, and wherein a pH of an electrolytic solution during electrolysis is constantly maintained so that it is the same as the initial pH.
Abstract translation: 目的:提供一种用于电解高纯度电解铜阴极的设备,通过电解精炼工艺仅将一次纯度为99.9999%的纯度为99.9999%的纯度为99.99%的纯度为99.99%的商业批量生产的纯度为99.99%的电解铜阴极 。 构成:用于电解高纯度电解铜阴极的装置包括:具有安装在商业电解铜阴极的阳极(2)和阴极(6)之间的多孔壁表面的盒(3) 以及填充到盒中的具有大的比表面积的铜材料,其中从阳极洗脱的电解液通过穿过填充有铜材料的盒和隔膜(5)而前进到阴极(6),其中 所述铜材料是选自铜细线和铜粉末的一种或多种材料,其中所述装置还包括用于将惰性气体注入所述盒中的浸渍孔,并且其中电解期间电解液的pH恒定 保持其与初始pH相同。
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公开(公告)号:KR100217031B1
公开(公告)日:1999-09-01
申请号:KR1019970005286
申请日:1997-02-21
Applicant: 한국과학기술연구원
IPC: B22D11/16
Abstract: 본 발명의 목적은 연속주조용 주형의 진동폭 및 연속주조 공정 중에 실시간으로 동시에 독립적으로 제어함과 동시에 공명 현상의 발생을 방지할 수 있는 진동 장치 및 진동 제어 방법을 제공하는 것이다.
본 발명은 연속주조용 주형의 외벽 바깥에 전자석을 설치하여 주형의 진동을 유발하는 연속 주조용 전자기 주형 진동 장치에 있어서, 상기 주형의 외측벽에 부착되어 상기 주형의 길이 방향과 수직 방향으로 연장되는 하나 이상의 자기철심판과, 상기 자기철심판의 상하에 설치되는 복수개의 전자석을 가지고, 상기 복수개의 전자석에 공급되는 전류를 제어함으로써 상기 주형 및 자기철심판의 진동을 제어할 수 있는 연속주조용 주형 전자기 진동 장치를 제공한다.-
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公开(公告)号:KR101807121B1
公开(公告)日:2017-12-07
申请号:KR1020150164847
申请日:2015-11-24
Abstract: 본발명의일 실시예에의한수소저장물질은 LiNH, MgH및 Mg(BH)를포함한다. 본발명의일 실시예에의한수소저장물질의제조방법은 LiNH, MgH및 Mg(BH)를혼합하여혼합물을제조하는단계; 및혼합물을분쇄하는단계;를포함한다.
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公开(公告)号:KR1020150063230A
公开(公告)日:2015-06-09
申请号:KR1020130147588
申请日:2013-11-29
Applicant: 한국과학기술연구원
IPC: C22C1/08
CPC classification number: C22B34/14
Abstract: Zr을포함하는다공체의제조방법이제공되고, 본발명의일 구현예에서는 Zr을포함하는합금재료를준비하는단계, 합금재료를수소압력분위기에서열처리하는단계, 합금재료내, Zr 이외의금속을제거하는단계, 그리고탈수소화공정을수행하는단계를포함하는 Zr을포함하는다공체의제조방법을제공한다.
Abstract translation: 提供了含有Zr的多孔体的制造方法。 根据本发明实施方案的含Zr多孔体的制造方法包括:制备含有Zr的合金材料的步骤; 在氢气氛中对合金材料进行热处理的工序; 合金材料除去Zr以外的金属的工序; 以及进行脱氢工序的工序。
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20.
公开(公告)号:KR1020130018431A
公开(公告)日:2013-02-22
申请号:KR1020110080650
申请日:2011-08-12
Applicant: 한국과학기술연구원
CPC classification number: C22C38/18 , C21D6/002 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D2201/05 , C21D2211/005 , C22C38/005 , C22C38/02 , C22C38/06 , C22C38/24 , C22C38/28 , H01M8/021 , H01M2008/1293 , Y02P70/56
Abstract: PURPOSE: A ferrite-based stainless steel with oxidation resistance, a manufacturing method thereof, and a fuel cell interconnector using the same are provided to have excellent electric conductivity and oxidation resistance by having a compact oxide film on the surface of the ferrite-based stainless steel. CONSTITUTION: A ferrite-based stainless steel with oxidation resistance is composed of a ferrite-based stainless steel and a chrome oxide film. The ferrite-based stainless steel contains chrome. The fraction of crystal orientation measured by EBSP is 5% or more. The chrome oxide film is formed on the surface of the ferrite-based stainless steel. [Reference numerals] (AA) Spinel oxide film(relatively bright portion); (BB) Chrome oxide film(dark portion); (CC) Ferrite-based stainless steel
Abstract translation: 目的:提供具有耐氧化性的铁素体系不锈钢及其制造方法以及使用其的燃料电池互连器,通过在铁素体系不锈钢的表面上具有紧密的氧化膜,具有优异的导电性和抗氧化性 钢。 构成:具有抗氧化性的铁素体不锈钢由铁素体系不锈钢和氧化铬膜构成。 铁素体不锈钢含铬。 EBSP测得的晶体取向分数为5%以上。 氧化铬膜形成在铁素体系不锈钢的表面上。 (附图标记)(AA)氧化皮膜(相对亮的部分); (BB)氧化铬膜(暗部); (CC)铁素体不锈钢
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