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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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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：KR101435481B1
公开(公告)日：2014-08-28
申请号：KR1020140016108
申请日：2014-02-12
Applicant: 한국지질자원연구원
Abstract: The present invention relates to a method for manufacturing ternary titanium alloy powder using a Ti-Mo alloy scrap and, more specifically, to a method for manufacturing ternary titanium alloy powder using a Ti-Mo alloy scrap comprising the steps of manufacturing a Ti-Mo-Si alloy ingot by adding Si to the Ti-Mo alloy scrap and dissolving; charging the manufactured alloy ingot in a hydrogen furnace and primarily thermal processing the same; secondarily thermal processing the alloy ingot after crushing the same; and deoxidizing the alloy powder.
Abstract translation: 本发明涉及使用Ti-Mo合金废料制造三元钛合金粉末的方法，更具体地说，涉及使用Ti-Mo合金废料制造三元钛合金粉末的方法，包括以下步骤：制造Ti-Mo -Si合金锭通过在Ti-Mo合金中加入Si并溶解; 在氢气炉中对制造的合金锭进行充电，并主要进行热处理; 二次热处理后，合金锭经过破碎处理; 并对合金粉末进行脱氧。
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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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Patent Agency Ranking
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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公开(公告)号：KR1020120054420A
公开(公告)日：2012-05-30
申请号：KR1020100115781
申请日：2010-11-19
Applicant: 한국지질자원연구원
IPC: C22B34/12
CPC classification number: C22B34/1281 , C22B9/04 , C22B9/20 , C22B9/226 , C22B9/228 , C22B34/1295
Abstract: PURPOSE: A method for reduction of oxygen in Ti by addition of carbon powder is provided to easily obtain low-oxygen Ti by reducing oxygen in Ti while melting Ti. CONSTITUTION: A method for reduction of oxygen in Ti is as follows. Carbon of 0.01-5.0wt.% is added to pure Ti and Ti is melted. The melting process employs a vacuum arc melting method, an electron-beam melting method, or a plasma arc melting method.
Abstract translation: 目的：提供通过添加碳粉来减少Ti中的氧的方法，以便通过在熔化Ti的同时还原氧中的Ti来容易地获得低氧Ti。 构成：在Ti中还原氧的方法如下。 将0.01-5.0重量％的碳添加到纯Ti中，并将Ti熔化。 熔融工艺采用真空电弧熔化法，电子束熔融法或等离子弧熔化法。
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公开(公告)号：KR101431731B1
公开(公告)日：2014-08-20
申请号：KR1020140023465
申请日：2014-02-27
Applicant: 한국지질자원연구원
Abstract: The present invention relates to a manufacturing method of sintered titanium or titanium alloy having a low oxygen content and high density which more specifically comprises the steps of manufacturing compact titanium or titanium alloy by compressing powder of titanium or titanium alloy; and sintering the compact titanium or titanium alloy after adding a deoxidizer into the compact titanium or titanium alloy.
Abstract translation: 本发明涉及具有低氧含量和高密度的钛或钛合金烧结体的制造方法，其具体包括通过压制钛或钛合金粉末来制造紧密的钛或钛合金的步骤; 并在将紧密的钛或钛合金加入脱氧剂之后烧结紧密的钛或钛合金。
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公开(公告)号：KR101364607B1
公开(公告)日：2014-02-20
申请号：KR1020130109034
申请日：2013-09-11
Applicant: 한국지질자원연구원
CPC classification number: B22F3/10 , B22F1/0088
Abstract: Disclosed is a method for refining the crystal grains of a sintered body by reducing the oxygen content of metallic molybdenum powder. The method for refining the crystal grains of a sintered body by reducing the oxygen content of metallic molybdenum powder comprises: a step of preparing metallic molybdenum powder; a step of deoxidizing the prepared metallic molybdenum powder using a calcium as a deoxidizing agent; a step of obtaining a sintered body by put the deoxidized metallic molybdenum powder in a sintering machine. [Reference numerals] (AA) START; (BB) END; (S10) Prepare molybdenum powder; (S20) Deoxidation; (S30) Put the deoxidized molybdenum powder in a sintering machine; (S40) Sinter the deoxidized molybdenum powder while changing sintered temperatures; (S50) Measure the hardness, oxygen concentration, crystal grain size and relative density of a sintered body
Abstract translation: 公开了通过降低金属钼粉末的氧含量来精炼烧结体的晶粒的方法。 通过降低金属钼粉末的氧含量来精炼烧结体的晶粒的方法包括：制备金属钼粉末的步骤; 使用钙作为脱氧剂使制备的金属钼粉末脱氧的步骤; 通过将脱氧金属钼粉末放入烧结机中获得烧结体的步骤。 （附图标记）（AA）START; （BB）END; （S10）制备钼粉; （S20）脱氧; （S30）将脱氧钼粉放入烧结机中; （S40）在改变烧结温度的同时烧结脱氧的钼粉末; （S50）测定烧结体的硬度，氧浓度，结晶粒径和相对密度
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