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公开(公告)号：KR101291144B1
公开(公告)日：2013-08-01
申请号：KR1020120138212
申请日：2012-11-30
Applicant: 한국지질자원연구원
CPC classification number: B22F9/20 , B22F9/22 , B22F2203/11 , B22F2999/00 , B22F2201/20
Abstract: PURPOSE: A device of manufacturing low oxygen concentration molybdenum powder is provided to produce metal molybdenum powder with oxygen content lower than 3,000 ppm and the size smaller than 5 um from trioxide molybdenum powder. CONSTITUTION: A device of reducing molybdenum trioxide and manufacturing low oxygen concentration molybdenum powder includes a main body (100), a cover (110) covering the upper part of the main body, a joint (115) connecting the main body and the cover, a bracket (120) located on the upper part of the body and a micro sheave (130) located on the upper part of the bracket. The bracket is tripod shaped and has a heater positioned in the lower side of the bracket. On the top of the micro sheave, the first reducing agent and molybdenum trioxide contact with each other and are arranged.
Abstract translation: 目的：提供一种低氧浓度钼粉制造装置，以生产氧含量低于3000ppm，尺寸小于5um的三氧化钼钼粉末的金属钼粉末。 构成：减少三氧化钼并制造低氧浓度的钼粉末的装置包括主体（100），覆盖主体上部的盖（110），连接主体和盖的接头（115） 位于主体上部的支架（120）和位于支架上部的微滑轮（130）。 支架是三脚架形状，并且具有位于支架下侧的加热器。 在微滑轮的顶部，第一还原剂和三氧化钼彼此接触并排列。
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公开(公告)号：KR1020130057504A
公开(公告)日：2013-06-03
申请号：KR1020110122796
申请日：2011-11-23
Applicant: 한국지질자원연구원
IPC: B22F9/24
Abstract: PURPOSE: A method for manufacturing cobalt and the cobalt made thereby are provided so that the diameter of cobalt is less than 1 micrometer, and fine cobalt powder is manufactured by a slurry reduction method at a low temperature and pressure. CONSTITUTION: A method for manufacturing cobalt comprises a step of forming slurry(S110), an input step(S120), a mixing step(S130), a step of adding catalysts(S140), and a step of obtaining cobalt powder(S150). In the step of forming the slurry, NaOH is dissolved at the rate of 1:8 or 1:16 so that Co(OH)2 slurry is formed. In the input step, the Co(OH)2 slurry is added to a container. In the mixing step, Co(OH)2 slurry is mixed while being heated. In the step of adding catalysts, the catalysts are added to the Co(OH)2 slurry. In the step of obtaining cobalt powder, a reducing agent is added to the Co(OH)2 slurry so that fine cobalt powder is obtained. [Reference numerals] (AA) Start; (BB) End; (S110) Make slurry; (S120) Inject; (S130) Mix; (S140) Add catalysts; (S150) Obtain cobalt powder
Abstract translation: 目的：提供钴及其制造的钴的方法，使得钴的直径小于1微米，并且通过浆料还原法在低温和低压下制造细小的钴粉末。 构成：制造钴的方法包括形成浆料的步骤（S110），输入步骤（S120），混合步骤（S130），添加催化剂的步骤（S140）和获得钴粉末的步骤（S150） 。 在形成浆料的步骤中，NaOH以1:8或1:16的比例溶解，形成Co（OH）2浆液。 在输入步骤中，将Co（OH）2浆料加入到容器中。 在混合步骤中，Co（OH）2浆料在加热的同时混合。 在添加催化剂的步骤中，将催化剂加入到Co（OH）2浆液中。 在获得钴粉末的步骤中，向Co（OH）2浆料中添加还原剂，从而获得细小的钴粉末。 （附图标记）（AA）开始; （BB）结束; （S110）制浆; （S120）注入; （S130）混合; （S140）添加催化剂; （S150）获得钴粉末
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公开(公告)号：KR101249000B1
公开(公告)日：2013-04-02
申请号：KR1020120112416
申请日：2012-10-10
Applicant: 한국지질자원연구원
IPC: C04B35/74 , C04B35/52 , C04B35/622
CPC classification number: C04B35/74 , C04B35/522 , C04B35/6261 , C04B35/62645 , C04B2235/40 , C04B2235/425
Abstract: PURPOSE: A synthesizing method of a carbide and carbonitride powder is provided to quickly obtain uniform powder for cermet by uniformly mixing carbide and carbonitride in advance. CONSTITUTION: A synthesizing method of a carbide and carbonitride powder comprises a step of preparing Ti alloy powder and graphite(ST110); a step of planetary pulverizing the Ti alloy powder and graphite(ST120); a step of mortar pulverizing the Ti alloy powder and graphite(ST130); and a step of heat-treating the Ti alloy powder and graphite(ST140). In the ST140 step, the graphite is partially made into an amorphous state and carbide and carbonitride are formed. The Ti alloy powder is Ti-Cr alloy powder or Ti-Al alloy powder. The Ti composition of the Ti alloy powder is 65-80 wt%. The mixing ratio of the Ti alloy powder and the graphite is 1:1. [Reference numerals] (ST110) Preparing raw materials; (ST120) Planetary pulverizing; (ST130) Mortar pulverizing; (ST140) Heat-treating; (ST150) Analyzing;
Abstract translation: 目的：提供碳化物和碳氮化物粉末的合成方法，通过预先均匀混合碳化物和碳氮化物，快速获得均匀的金属陶瓷粉末。 构成：碳化物和碳氮化物粉末的合成方法包括制备Ti合金粉末和石墨的步骤（ST110）; 行星式粉碎Ti合金粉末和石墨的步骤（ST120）; 砂浆粉碎Ti合金粉末和石墨的步骤（ST130）; 和对Ti合金粉末和石墨进行热处理的工序（ST140）。 在ST140步骤中，石墨部分地制成非晶状态，形成碳化物和碳氮化物。 Ti合金粉末为Ti-Cr合金粉末或Ti-Al合金粉末。 Ti合金粉末的Ti组成为65〜80重量％。 Ti合金粉末和石墨的混合比为1:1。 （附图标记）（ST110）准备原料; （ST120）行星粉碎; （ST130）砂浆粉碎; （ST140）热处理; （ST150）分析;
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公开(公告)号：KR1020120065831A
公开(公告)日：2012-06-21
申请号：KR1020100127145
申请日：2010-12-13
Applicant: 한국지질자원연구원
IPC: B22F9/24
CPC classification number: B22F9/24 , B22F1/0011 , B22F2201/013 , B22F2301/15
Abstract: PURPOSE: A method for direct preparation of nickel powder using a hydrothermal method is provided to easily control the shape and particle size of nickel powder and improve the dispersibility and yield rate of nickel powder. CONSTITUTION: A method for direct preparation of nickel powder using a hydrothermal method comprises the steps of: preparing a hydrothermal synthetic mixture comprising NiO, pH adjuster, PdCl2, Anthraquinone, PVP(Polyvinyl pyrrolidone), and water(S310), putting the hydrothermal synthetic mixture into a reaction container and heating over the boiling temperature of water(S320), adding reductant to the heated mixture to dissolve the NiO and reduce Ni(S330), cooling the resultant of hydrothermal synthesis(S340), and washing and drying the cooled resultant to obtain Ni powder(S350).
Abstract translation: 目的：提供一种使用水热法直接制备镍粉的方法，可以方便地控制镍粉的形状和粒径，提高镍粉的分散性和产率。 构成：使用水热法直接制备镍粉的方法包括以下步骤：制备包含NiO，pH调节剂，PdCl 2，蒽醌，PVP（聚乙烯吡咯烷酮）和水的水热合成混合物（S310），将水热合成 混合物加入到反应容器中并在水的沸腾温度下加热（S320），向加热的混合物中加入还原剂以溶解NiO并还原Ni（S330），冷却水热合成的结果（S340），并洗涤并干燥冷却 得到Ni粉末（S350）。
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公开(公告)号：KR101263237B1
公开(公告)日：2013-05-10
申请号：KR1020120112917
申请日：2012-10-11
Applicant: 한국지질자원연구원
Abstract: PURPOSE: A method of manufacturing low oxygen ingot is provided to manufacture low oxygen ingot with a small amount of oxygen by dehydrating molybdenum trioxide as a first step and vacuum melt the molybdenum trioxide as a second step. CONSTITUTION: A method of manufacturing low oxygen ingot comprises the following steps. Raw material metal oxide is put into a dehydrogenating apparatus and hydrogen gas is added to the apparatus. The raw material metal oxide is heated for a certain period of time to get metal oxide which is reduced. The reduced metal oxide is heated for a certain period of time to get metal oxide powder. The metal oxide powder is heated for a certain period of time to be removed from gas. The heated metal oxide powder is vacuum melted. The heating process for removing gas is carried out at a temperature of 1200-1500°C for 1-2 hours. The raw material metal oxide is molybdenum trioxide(MoO3), the reduced metal oxide is molybdenum dioxide(MoO2) and the reduced metal oxide poser is molybdenum(Mo). The vacuum melting is carried out under the atmosphere of inactive gas and H2 gas 5-20 % for 3-20 minutes. [Reference numerals] (ST100) Put molybdenum trioxide(MgO3) powder into a hydrogen reduction apparatus; (ST200) Enable H2 gas to flow into the hydrogen reduction apparatus(supplying flux: 1000-2000cc/min); (ST300) Heat molybdenum trioxide powder after reaching to a first reducing temperature(temperature: 500-600°C, maintaining time: 2 hour); (ST400) Heat molybdenum dioxide after reaching to a second reducing temperature(temperature: 800-1000°C, maintaining time: 1 hour); (ST500) Block H2 gas; (ST600) Degas and heat treat obtained metal molybdenum powder(heat treatment temperature: 1200-1500°C, maintaining time: 1 hour); (ST700) Put metal molybdenum powder into a vacuum dissolving furnace(vacuum dissolving atmosphere: Ar + 5% H2 gas); (ST800) Vacuum dissolve(vacuum dissolving time: 5-20 minutes); (ST900) Obtain molybdenum ingot
Abstract translation: 目的：提供一种制造低氧锭的方法，通过将三氧化钼脱水作为第一步骤，以少量氧气制造低氧锭，并将三氧化钼真空熔化，作为第二步。 构成：制造低氧锭的方法包括以下步骤。 将原料金属氧化物放入脱氢装置中，向装置中加入氢气。 将原料金属氧化物加热一定时间以得到还原的金属氧化物。 将还原的金属氧化物加热一定时间以得到金属氧化物粉末。 将金属氧化物粉末加热一定时间以从气体中除去。 将加热的金属氧化物粉末真空熔化。 用于除去气体的加热过程在1200-1500℃的温度下进行1-2小时。 原料金属氧化物为三氧化钼（MoO 3），还原金属氧化物为二氧化钼（MoO 2），还原金属氧化物为钼（Mo）。 真空熔化在惰性气体和氢气气氛下进行5-20％，持续3-20分钟。 （附图标记）（ST100）将三氧化钼（MgO 3）粉末放入氢还原装置中; （ST200）使H2气流入氢还原装置（供给通量：1000〜2000cc / min）; （ST300）达到第一还原温度（温度：500-600℃，保持时间：2小时）后的三氧化钼粉末; （ST400）达到第二还原温度后的二氧化钼（温度：800-1000℃，保持时间：1小时）; （ST500）块H2气; （ST600）脱气和热处理得到的金属钼粉末（热处理温度：1200-1500℃，保持时间：1小时）; （ST700）将金属钼粉末放入真空溶解炉（真空溶解气氛：Ar + 5％H 2气）中; （ST800）真空溶解（真空溶解时间：5-20分钟）; （ST900）获得钼锭
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Patent Agency Ranking
公开(公告)号：KR101239386B1
公开(公告)日：2013-03-05
申请号：KR1020100127145
申请日：2010-12-13
Applicant: 한국지질자원연구원
IPC: B22F9/24
Abstract: 분산성 및 환원율이 우수한 수열합성법을 이용한 니켈 분말 직접 제조 방법에 대하여 개시한다.
본 발명에 따른 수열합성법을 이용한 니켈 분말 직접 제조 방법은 (a) NiO, pH 조절제, PdCl
2 , 안트라퀴논(Anthraquinone), PVP(Polyvinyl pyrrolidone) 및 물이 혼합된 수열합성 혼합물을 마련하는 단계; (b) 상기 수열합성 혼합물을 반응 용기에 투입한 후, 물의 끓는점 이상으로 가열하는 단계; (c) 상기 (b) 단계의 가열된 혼합물에 환원제를 가하여, 상기 NiO를 용해한 후 Ni로 환원시키는 단계; (d) 상기 (c) 단계의 수열반응의 결과물을 냉각하는 단계; 및 (e) 상기 (d) 단계의 냉각된 결과물을 세척 및 건조하여 Ni 파우더를 수득하는 단계;를 포함하는 것을 특징으로 한다.-
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公开(公告)号：KR101275054B1
公开(公告)日：2013-06-17
申请号：KR1020120076295
申请日：2012-07-12
Applicant: 한국지질자원연구원
IPC: B22F9/16
Abstract: PURPOSE: A manufacturing method of low-oxygen titanium alloy powder is provided to manufacture low-oxygen titanium alloy powder with the oxygen content below 2000 weight ppm by performing deoxidation for 1-3 hours at 950-1050 degrees centigrade by using 80-120 wt% of deoxidizer for 100 wt % of titanium alloy base powder. CONSTITUTION: A manufacturing method of low oxygen titanium alloy powder includes the following steps: a step of placing 80-120 wt% of deoxidizer in a lower container with an open top and placing 100 wt% of titanium allow base powder containing oxygen over 3000 weight ppm on a sieve of an upper container combined with the lower container and having a bottom surface made of the sieve(S110); a step of heating the inside of the lower container and upper container at 950-1050 degrees centigrade and deoxidizing the titanium alloy base powder for 1-3 hours in a vacuum of 1x10^(-5) torr by using the evaporation of the deoxidizer(S210); a step of washing and drying the deoxidized titanium alloy powder(S130). The titanium alloy base powder is Ti-6Al-4V, and the oxygen content of the titanium alloy powder obtained from the above step is 1760-2000 weight ppm. [Reference numerals] (AA) Start; (BB) End; (S110) Titanium alloy powder/deoxidizer; (S120) Deoxidation; (S130) Deoxidized titanium alloy powder
Abstract translation: 目的：提供低氧钛合金粉末的制造方法，通过使用80-120重量％的氧化铝在950-1050摄氏度下脱氧1-3小时来制造氧含量低于2000重量ppm的低氧钛合金粉末 百分之百的钛合金基础粉末的脱氧剂。 构成：低氧钛合金粉末的制造方法包括以下步骤：将80-120重量％的脱氧剂置于具有开口顶部的下部容器中并放置100重量％的钛的步骤允许含有超过3000重量的氧的基础粉末 在与下容器结合的上容器的筛子上具有ppm，并具有由筛子制成的底面（S110）; 在950-1050摄氏度下加热下部容器和上部容器的内部并通过使用脱氧剂的蒸发在1×10 -3（ - 5）乇的真空中将钛合金基础粉末脱氧1-3小时的步骤 S210）; 洗涤和干燥脱氧钛合金粉末的步骤（S130）。 钛合金粉末为Ti-6Al-4V，由上述工序得到的钛合金粉末的氧含量为1760〜2000重量ppm。 （附图标记）（AA）开始; （BB）结束; （S110）钛合金粉/脱氧剂; （S120）脱氧; （S130）脱氧钛合金粉末
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公开(公告)号：KR101248996B1
公开(公告)日：2013-04-02
申请号：KR1020120112417
申请日：2012-10-10
Applicant: 한국지질자원연구원
Abstract: PURPOSE: A synthesizing method of carbide and carbonitride powder and a cermet obtained by the same are provided to easily manufacture cermet with a uniform composition by uniformly mixing carbide and carbonitride with metal components in advance. CONSTITUTION: A synthesizing method of carbide and carbonitride powder comprises a step of preparing Ti-Ni allow powder and graphite as Ti alloy powder(ST110); a step of planetary pulverizing the Ti-Ni alloy powder and graphite(ST120); a step of mortar pulverizing the alloy powder and graphite(ST130); and a step of heat-treating the Ti-Ni alloy powder and graphite(ST140). The composition of the Ti in the Ti-Ni alloy powder is 65-88wt%. The molar ratio of Ti and graphite in the Ti-Ni alloy powder is 1:1. The synthesizing method provides carbide and carbon nitride/metal composite powder with TiC and Ni. Cermet is formed from the composite powder. [Reference numerals] (ST110) Raw material preparation; (ST120) Planetary pulverization; (ST130) Mortar pulverization; (ST140) Heat-treatment; (ST150) Analysis;
Abstract translation: 目的：提供碳化物和碳氮化物粉末及其制备的金属陶瓷的合成方法，以容易地制造具有均匀组成的金属陶瓷，通过将碳化物和碳氮化物与金属成分预先均匀混合。 构成：碳化物和碳氮化物粉末的合成方法包括制备Ti-Ni允许粉末和石墨作为Ti合金粉末的步骤（ST110）; 行星式粉碎Ti-Ni合金粉末和石墨的步骤（ST120）; 砂浆粉碎合金粉末和石墨的步骤（ST130）; 以及对Ti-Ni合金粉末和石墨进行热处理的工序（ST140）。 Ti-Ni合金粉末中Ti的组成为65-88wt％。 Ti-Ni合金粉末中Ti和石墨的摩尔比为1:1。 合成方法提供碳化物和氮化碳/金属复合粉末与TiC和Ni。 金属陶瓷由复合粉末形成。 [参考号]（ST110）原料制备; （ST120）行星粉碎; （ST130）砂浆粉碎; （ST140）热处理; （ST150）分析;
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公开(公告)号：KR1020130010742A
公开(公告)日：2013-01-29
申请号：KR1020110071574
申请日：2011-07-19
Applicant: 한국지질자원연구원
CPC classification number: C22B34/1295 , C22B9/04 , C22B9/20 , C22B9/226 , C22B9/228
Abstract: PURPOSE: A manufacturing method of a low oxygen concentration titanium ingot using a metal calcium and a vacuum melting is provided to obtain a low oxygen concentration titanium ingot below an industrial ADTM grade by using a metal calcium first and then processing an additional deoxidation by a vacuum melting. CONSTITUTION: A manufacturing method of a low oxygen concentration titanium ingot comprises the step of deoxidizing at high temperature after adding metal calcium to titanium powder and the step of melting a power compact after forming a deoxidized titanium into a powder compact. The content of added metal calcium is 30-200% compared to the weight of titanium powder. Titanium powder adding calcium is kept for 0.5-8 hours at 400-900 deg. C by using a vacuum heat treatment furnace. A dissolution process is performed by using a vacuum arc melting, an electron beam melting, or a plasma arc melting. Melting is performed in a gas atmosphere added with a vacuum, an inert gas, and hydrogen. The content of added metal calcium is performed in the condition of 30-200% compared to the weight of titanium powder, preferably 30-100%, and more preferably 50%.
Abstract translation: 目的：提供使用金属钙和真空熔化的低氧浓度钛锭的制造方法，以首先使用金属钙获得低于工业级ADTM级的低氧浓度钛锭，然后通过真空处理额外的脱氧 融化。 构成：低氧浓度钛锭的制造方法包括在向钛粉末添加金属钙之后，在高温下脱氧的步骤以及将脱氧钛成形为粉末成形体后的功率成形体熔融的工序。 添加金属钙的含量相对于钛粉的重量为30-200％。 加入钙的钛粉末在400-900度保持0.5-8小时。 C采用真空热处理炉。 通过使用真空电弧熔化，电子束熔化或等离子体电弧熔化来进行溶解过程。 在加入真空，惰性气体和氢气的气氛中进行熔融。 添加的金属钙的含量相对于钛粉末的重量为30〜200％，优选为30〜100％，更优选为50％。
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