WO2019088007A1 - Procédé de purification de matériau à base de titane - Google Patents

Procédé de purification de matériau à base de titane Download PDF

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Publication number
WO2019088007A1
WO2019088007A1 PCT/JP2018/040049 JP2018040049W WO2019088007A1 WO 2019088007 A1 WO2019088007 A1 WO 2019088007A1 JP 2018040049 W JP2018040049 W JP 2018040049W WO 2019088007 A1 WO2019088007 A1 WO 2019088007A1
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Prior art keywords
titanium
titanium material
hydrogen
melting
dissolution
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PCT/JP2018/040049
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English (en)
Japanese (ja)
Inventor
大介 松若
尚之 成島
恭介 上田
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株式会社神戸製鋼所
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Application filed by 株式会社神戸製鋼所 filed Critical 株式会社神戸製鋼所
Priority to EP18874635.8A priority Critical patent/EP3705588B1/fr
Priority to RU2020114609A priority patent/RU2738280C1/ru
Priority to CN201880068865.8A priority patent/CN111279000B/zh
Priority to US16/755,358 priority patent/US20200239979A1/en
Publication of WO2019088007A1 publication Critical patent/WO2019088007A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1295—Refining, melting, remelting, working up of titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/18—High-melting or refractory metals or alloys based thereon
    • C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon

Definitions

  • the present invention relates to a method of purifying titanium material that removes oxygen and hydrogen contained in titanium material from titanium material consisting of pure titanium, titanium alloy, or intermetallic compound containing titanium as one of main components. It is about
  • titanium such as pure titanium and titanium alloy
  • properties such as light weight, high corrosion resistance and high specific strength.
  • titanium is active, it is also called an active metal, and is very easily associated with light elements such as oxygen and nitrogen, and once it is combined with these light elements, removal becomes very difficult.
  • titanium has excellent properties, but such a problem that removal of light elements once bonded is difficult, and further a problem that it is expensive compared to conventionally used steel materials and aluminum materials. In the current situation, it has not spread to the market.
  • Non-Patent Document 1 and Non-Patent Document 2 are technical documents describing a method of removing oxygen contained in a titanium material such as pure titanium or titanium alloy using hydrogen.
  • Non-Patent Document 1 describes that oxygen can be reduced by arc melting sponge titanium or a Ti-6Al-4V alloy in an Ar- (1 to 30) volume% H 2 atmosphere.
  • sponge titanium when sponge titanium is used as a raw material, it is described that an oxygen concentration falls from 0.04 mass% to 0.016 mass%.
  • Ti-6Al-4V When Ti-6Al-4V is used as a raw material, the oxygen concentration decreases from 0.12% by mass to 0.028% by mass, and the oxygen concentration is 1.6% by mass to 0.3% by mass It is described that it decreases.
  • Non-Patent Document 2 describes that oxygen can be reduced by plasma arc melting pure titanium in an Ar-20 volume% H 2 atmosphere. Also, it is described that the oxygen concentration decreases from the initial oxygen concentration of 0.23% by mass to 0.09% by mass.
  • Non-Patent Document 1 describes the use of ICP analysis as an oxygen analysis method, but does not specifically describe under what experiment conditions data were obtained.
  • ICP analysis it is difficult to accurately analyze the oxygen concentration in a sample due to the presence of oxygen atoms contained in water molecules used in preparing a solution for quantitative analysis.
  • the graph which shows a time-dependent change of the oxygen concentration in a sample is also described by the nonpatent literature 2, the oxygen reduction effect beyond this is hard to be anticipated from the inclination of the described graph.
  • the present invention has been made in view of the above-mentioned conventional circumstances, and it is possible to contain oxygen, and hydrogen contained from titanium material consisting of pure titanium, titanium alloy or an intermetallic compound containing titanium as one of the main components.
  • An object of the present invention is to provide a method of purifying a titanium material which can be reliably removed.
  • the method for purifying a titanium material according to the present invention is a titanium material for removing oxygen contained in the titanium material from a titanium material consisting of pure titanium, a titanium alloy, or an intermetallic compound containing titanium as one of its main components.
  • each of the first dissolution step and the second dissolution step is performed one or more times.
  • a vacuum degree is 1 ⁇ 10 ⁇ 2 to 1 ⁇ 10 ⁇ 4 Pa and a holding temperature is 600 to 1200 ° C. for 15 minutes or more after completion of the second melting step. It is preferable to further have a heat treatment step of removing hydrogen from the titanium material by holding.
  • the method for purifying a titanium material of the present invention it is possible to reliably remove oxygen and hydrogen contained in titanium material consisting of pure titanium, titanium alloy or an intermetallic compound containing titanium as one of the main components. Can.
  • the present inventors have purified a titanium material that can reliably remove the light element contained in the titanium material, particularly oxygen, from a titanium material whose main component is titanium, which is very easily combined with light elements such as oxygen and nitrogen.
  • the first melting step of introducing hydrogen by dissolving the titanium material in a rare gas atmosphere containing a certain amount of hydrogen, and subsequently dissolving the titanium material in a rare gas atmosphere By carrying out the second dissolution step of removing the contained oxygen together with the hydrogen introduced in one step, it was found that the oxygen contained in the titanium material can be reliably removed, and the present invention has been completed.
  • the reason why the oxygen contained in the titanium material can be removed from the titanium material together with the hydrogen introduced in the first dissolution step in the second dissolution step is considered to be because the introduced hydrogen functions as a deoxidizer.
  • the titanium material used in the method of purifying titanium material according to the present invention has either pure titanium, a titanium alloy, or an intermetallic compound of titanium (an intermetallic compound containing titanium as one of its main components) .
  • pure titanium JIS1 class, JIS class 2, JIS class 3, JIS class 4 industrial pure titanium can be illustrated, and as an alloy element which titanium alloy contains, Al, V, Mo, Cr, Zr, Sn, Si, Cu, Nb, Fe, Ni, Ta, Ag, Pd, C, N can be exemplified, and TiAl and NiTi can be exemplified as the intermetallic compound.
  • the titanium content of these titanium materials is preferably 45% by mass or more.
  • the lower limit of the titanium content of the titanium material is about this level, and when the titanium content is too small, it can not be called a titanium material.
  • the purification method of titanium of the present invention at least includes a first dissolution step and a second dissolution step.
  • the first dissolution step and the second dissolution step are each performed one or more times.
  • it divides into a 1st melt
  • the first melting step is a step for introducing hydrogen into the titanium material, and is a pretreatment step for removing oxygen from the titanium material.
  • oxygen can be reduced by carrying out the step corresponding to the first dissolution step.
  • oxygen can not be removed from the titanium material only by the first melting step. Although it describes as a comparative example in the column of a subsequent Example, oxygen can not fully be removed from a titanium raw material only by implementing this 1st melt
  • hydrogen is introduced into the titanium material melt by melting the titanium material in a rare gas atmosphere containing 5 to 70% by volume of hydrogen using, for example, a plasma arc melting furnace.
  • the melting in the first melting step is preferably performed by plasma arc melting.
  • heating and hydrogen introduction can be simultaneously performed by mixing hydrogen in the plasma gas.
  • dissolution the apparatus etc. which introduce hydrogen gas separately from a heat source will be needed, and it will lead to the rise of manufacturing cost.
  • the reason for setting the atmosphere of the first melting step to a rare gas atmosphere containing 5 to 70% by volume of hydrogen (5% to 70% by volume) is that the hydrogen concentration is 70 volumes, especially in the case of plasma arc melting. If it exceeds 10%, the energy required for ionization will rise, and the arc loss will be frequent with the rise in voltage, making it difficult to generate a plasma arc. On the other hand, if the hydrogen concentration is less than 5% by volume, hydrogen can not be sufficiently introduced into the titanium melt.
  • the lower limit of the hydrogen content is preferably 10% by volume or more, more preferably 15% by volume or more.
  • the upper limit of the hydrogen content is preferably 60% by volume or less, more preferably 50% by volume or less.
  • the atmosphere in the first melting step is a rare gas atmosphere containing 5 to 70% by volume of hydrogen, but an Ar atmosphere can be exemplified as the rare gas atmosphere.
  • the atmosphere of the first melting step is He atmosphere, Ne atmosphere, etc., deoxidation is theoretically possible.
  • the amount of heat input in the first melting step is not particularly specified, but is preferably in the range of 15 to 200 kW / kg (15 kW / kg or more and 200 kW / kg or less). If the amount of heat input is less than 15 kW / kg, the amount of heat necessary to dissolve titanium can not be secured. On the other hand, if the heat input exceeds 200 kW / kg, volatilization loss of titanium will occur.
  • the dissolution holding time in the first dissolution step is not particularly specified, but is preferably in the range of 0.3 to 3.6 ks (5 to 60 minutes).
  • the lower limit of the dissolution holding time is more preferably 0.6 ks (10 minutes) and the upper limit is 1.8 ks (30 minutes). If the solution retention time is less than 0.3 ks (5 minutes), sufficient hydrogen introduction for deacidification can not be achieved. On the other hand, even if the solution holding time exceeds 3.6 ks (60 minutes), the heat and the volatilization of titanium only increase the loss.
  • This first dissolution step is usually carried out only once, but may be carried out again after the second dissolution step.
  • the first dissolution step may be repeated twice or more continuously. It should be noted that whether the operation is performed only once or performed plural times can be based on the fact that the oxygen concentration is reduced to 80% or less compared to that before the treatment.
  • the second melting step is a step of removing oxygen contained in the titanium material from the melt of the titanium material together with hydrogen introduced into the titanium material in the first melting step.
  • the dissolution in the first dissolution step is desirably performed by plasma arc dissolution
  • the dissolution in the second dissolution step is also preferably performed by plasma arc dissolution.
  • the first melting step by performing plasma arc melting of the titanium material, it is possible to raise the temperature of the melt above other processes.
  • dissolution it is estimated that deoxidation efficiency declines slightly with temperature fall.
  • the atmosphere in the second melting step is a rare gas atmosphere such as Ar, He, or Ne.
  • the atmosphere in the first melting step is an Ar atmosphere containing 5 to 70% by volume of hydrogen
  • the second melting step may be an Ar atmosphere using the same kind of rare gas as the first melting step. Preferred for efficiency.
  • the atmosphere in the second melting step may be another rare gas such as He or Ne as in the first melting step.
  • the oxygen contained in the titanium material is reliably removed from the melt of the titanium material together with the hydrogen introduced into the titanium material in the first melting step by setting it to a rare gas atmosphere not containing hydrogen. can do.
  • a rare gas atmosphere not containing hydrogen hydrogen is contained in a very small amount (less than 5% by volume) if it does not affect the removal of hydrogen and oxygen from the melt of titanium material. It does not matter.
  • the amount of heat input in the second melting step is preferably in the range of 15 to 200 kW / kg as in the first melting step. If the amount of heat input is less than 15 kW / kg, the amount of heat necessary to dissolve titanium can not be secured. On the other hand, if the heat input exceeds 200 kW / kg, volatilization loss of titanium will occur.
  • the dissolution holding time in the second dissolution step is not particularly specified as in the dissolution holding time in the first dissolution step, but is in the range of 0.3 to 3.6 ks (5 to 60 minutes).
  • the lower limit is preferably 0.6 ks (10 minutes) and the upper limit is preferably 1.8 ks (30 minutes). If the dissolution holding time is less than 0.3 ks (5 minutes), sufficient time for deoxidation can not be secured. On the other hand, even if the solution holding time exceeds 3.6 ks (60 minutes), the heat and the volatilization of titanium only increase the loss.
  • This second dissolution step is usually performed only once as in the first dissolution step, but may be performed a plurality of times as in the first dissolution step.
  • the second dissolving step may be carried out repeatedly in combination with the first dissolving step a plurality of times, or even if only the second dissolving step is carried out a plurality of times after the first dissolving step is completed. I do not care.
  • whether the hydrogen concentration is reduced to 5.0 ⁇ 10 ⁇ 2 mass% or less can be used as a judgment standard whether the operation is performed only once or plural times.
  • the vacuum degree is maintained at 0.9 ks (15 minutes) or more under the conditions of 1 ⁇ 10 ⁇ 2 to 1 ⁇ 10 4 Pa and the holding temperature of 600 to 1200 ° C. carry out.
  • this heat treatment step does not necessarily need to be carried out, by carrying out the heat treatment step, it is possible to surely remove hydrogen which could not be removed in the second dissolution step.
  • the heat treatment step is carried out using a vacuum heat treatment furnace or the like, and the degree of vacuum at that time is in the range of 1 ⁇ 10 ⁇ 2 to 1 ⁇ 10 ⁇ 4 Pa.
  • the upper limit of the degree of vacuum is set to 1 ⁇ 10 -4 Pa because a degree of vacuum exceeding 1 ⁇ 10 -4 Pa is preferable for the purpose of dehydrogenation, but for exhausting to the above-mentioned degree of vacuum It is because it has a long time and the efficiency is bad.
  • the reason why the lower limit of the vacuum degree is 1 ⁇ 10 -2 Pa is that at a vacuum degree of less than 1 ⁇ 10 -2 Pa, an oxide film is formed on the titanium surface and hydrogen removal is inhibited by the oxide film. It is because it
  • the holding temperature in the heat treatment step is set to 600 to 1200 ° C.
  • the lower limit of the holding temperature is set to 600 ° C., because if the holding temperature is lower than that, the diffusion rate of hydrogen in the solid titanium material becomes slow and dehydrogenation takes a long time and the efficiency is poor.
  • the reason for setting the upper limit of the holding temperature to 1200 ° C. is that if the holding temperature is higher than that, the formation of the oxide film on the titanium surface becomes active and the time required for cooling becomes long.
  • the holding time in the heat treatment step is set to 0.9 ks (15 minutes) or more. If the retention time is less than 0.9ks (15 minutes), there is a high possibility that the hydrogen in the titanium material that could not be removed in the second dissolution step can not be removed, and the retention time is 0.9ks (15 minutes) By the above, it is possible to reliably remove the hydrogen in the titanium material which could not be removed in the second dissolving step.
  • the first melting step and the second melting step in a plasma arc melting furnace and the heat treatment step in a vacuum heat treatment furnace under test conditions. It carried out according to the order.
  • the hearth used for melting the titanium material was a hemispherical shape with a diameter of 80 mm.
  • a titanium material is added so that the height is about 25 mm in the case of 250 g of titanium melt mass (sample mass), and the height is about 40 mm in the case of 500 g of titanium melt mass (sample mass) I put the titanium material like.
  • the dissolution output by plasma arc in the first dissolution step is 70 V, 500 A
  • the dissolution output in the second dissolution step is 50 V, 450 A
  • the dissolution time in the first dissolution step is 0.3 to 3.6 ks ( In the range of 5 to 60 minutes, the flow rate was 30 L / min
  • the dissolution time in the second dissolution step was in the range of 0.3 to 3.6 ks (5 to 60 minutes)
  • the flow rate was 20 L / min.
  • the amount of heat input in the first melting step and the second melting step is 114 kW / kg
  • the pressure in the furnace is 1 atm.
  • the titanium raw material was used as a dissolution raw material, and the first dissolution step and the second dissolution step were sequentially performed one or more times as a dissolution step, and a heat treatment step was performed as needed.
  • the first melting step was carried out as the melting step using the titanium material as the melting raw material, and the heat treatment step was carried out as needed.
  • the atmosphere in the first dissolution step was an Ar atmosphere in which 30 volume% of hydrogen was mixed
  • the atmosphere in the second dissolution step was an Ar atmosphere (pure Ar atmosphere) in which hydrogen was not mixed.
  • the sample after the melting step was placed on an Al 2 O 3 boat covered with a Ti sheet, and vacuum was applied by a vacuum pump until it reached 7.0 ⁇ 10 ⁇ 3 Pa. Thereafter, the temperature was raised to 1023 K (750 ° C.) while keeping the vacuum state (7.0 ⁇ 10 ⁇ 3 Pa), and the holding time was maintained for 3.6 ks (60 minutes).
  • the outermost surface of the titanium material (sample) before the test and the sample after finishing the final process may be the first dissolution process, the second dissolution process, or the heat treatment process depending on the test conditions).
  • a sample was taken from the surface, and the oxygen concentration of the sample before the test and the oxygen concentration and hydrogen concentration of the sample after the final step were measured by the inert gas melting infrared absorption method and evaluated. Hydrogen analysis is a semi-quantitative method. The test results are shown in Table 1.
  • the hydrogen introduced into the titanium material in the first dissolution step functions as a deoxidizing agent in the second dissolution step, and the oxygen contained in the titanium material is removed from the titanium material together with the hydrogen.

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Abstract

La présente invention concerne un procédé de purification d'un matériau à base de titane qui est un procédé de désoxydation pour l'élimination d'oxygène contenu dans un matériau de titane du matériau de titane qui est formé à partir de titane pur, d'un alliage de titane ou d'un composé intermétallique qui contient du titane comme l'un des composants principaux. Ce procédé de purification d'un matériau de titane comprend : une première étape de fusion dans laquelle de l'hydrogène est introduit dans le matériau de titane sous un état fondu par fusion du matériau de titane sous une atmosphère de gaz rare contenant de 5 à 70 % en volume d'hydrogène ; et une seconde étape de fusion dans laquelle l'oxygène contenu dans le matériau de titane est retiré conjointement à l'hydrogène du matériau de titane sous un état fondu par fusion du matériau de titane, dans lequel de l'hydrogène a été introduit durant la première étape de fusion, sous une atmosphère de gaz rare. La première étape de fusion et la seconde étape de fusion sont exécutées respectivement une ou plusieurs fois.
PCT/JP2018/040049 2017-10-31 2018-10-29 Procédé de purification de matériau à base de titane WO2019088007A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP18874635.8A EP3705588B1 (fr) 2017-10-31 2018-10-29 Procédé de purification de matériau à base de titane
RU2020114609A RU2738280C1 (ru) 2017-10-31 2018-10-29 Способ очистки титанового материала
CN201880068865.8A CN111279000B (zh) 2017-10-31 2018-10-29 钛原材的精炼方法
US16/755,358 US20200239979A1 (en) 2017-10-31 2018-10-29 Method for purifying titanium material

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JP2017-210129 2017-10-31
JP2017210129A JP6816339B2 (ja) 2017-10-31 2017-10-31 チタン素材の脱酸方法

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WO2019088007A1 true WO2019088007A1 (fr) 2019-05-09

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US (1) US20200239979A1 (fr)
EP (1) EP3705588B1 (fr)
JP (1) JP6816339B2 (fr)
CN (1) CN111279000B (fr)
RU (1) RU2738280C1 (fr)
WO (1) WO2019088007A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090107290A1 (en) * 2007-10-25 2009-04-30 Los Alamos National Security, Llc Plasma-based reduction of titanium oxides
CN102517464A (zh) * 2011-12-26 2012-06-27 中国兵器工业第五二研究所 原位自生颗粒增强钛基复合材料的制备方法
KR20130010742A (ko) * 2011-07-19 2013-01-29 한국지질자원연구원 금속 칼슘 및 진공용해를 이용한 저산소 티타늄 잉곳의 제조방법
KR101435481B1 (ko) * 2014-02-12 2014-08-28 한국지질자원연구원 Ｔｉ―Ｍｏ 합금 스크랩을 이용한 3원계 티타늄 합금 분말의 제조방법
US20160177418A1 (en) * 2013-03-18 2016-06-23 Korea Institute Of Industrial Technology Refining device and refining method for titanium scraps and sponge titanium using deoxidising gas
JP2017210129A (ja) 2016-05-26 2017-11-30 横浜ゴム株式会社 空気入りタイヤ

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875034A (en) * 1956-03-30 1959-02-24 Nat Res Corp Production of metals
US4624714A (en) * 1983-03-08 1986-11-25 Howmet Turbine Components Corporation Microstructural refinement of cast metal
JPH0688765B2 (ja) * 1986-09-04 1994-11-09 松下電器産業株式会社 希ガス精製装置
US6019812A (en) * 1996-10-22 2000-02-01 Teledyne Industries, Inc. Subatmospheric plasma cold hearth melting process
CN101525701A (zh) * 2009-04-14 2009-09-09 哈尔滨工业大学 氢氩混合气氛中非自耗电弧熔炼降低Ti6Al4V合金中氧含量的方法
CN102847954B (zh) * 2011-06-27 2014-12-10 西南科技大学 一种用于氢化钛粉脱氢的真空炉装置及其脱氢方法
RU2612867C2 (ru) * 2012-02-15 2017-03-13 Общество с ограниченной ответственностью "Научно-производственная фирма "Рутений" Способ плавки высокореакционных металлов и сплавов на их основе и устройство для его осуществления
CN104694705B (zh) * 2015-02-06 2016-08-31 中南大学 一种深度脱氧装置及其应用
CN105779699B (zh) * 2016-03-28 2019-01-11 上海大学 利用溶解气体上浮法去除金属夹杂物的方法及增压真空感应炉精炼装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090107290A1 (en) * 2007-10-25 2009-04-30 Los Alamos National Security, Llc Plasma-based reduction of titanium oxides
KR20130010742A (ko) * 2011-07-19 2013-01-29 한국지질자원연구원 금속 칼슘 및 진공용해를 이용한 저산소 티타늄 잉곳의 제조방법
CN102517464A (zh) * 2011-12-26 2012-06-27 中国兵器工业第五二研究所 原位自生颗粒增强钛基复合材料的制备方法
US20160177418A1 (en) * 2013-03-18 2016-06-23 Korea Institute Of Industrial Technology Refining device and refining method for titanium scraps and sponge titanium using deoxidising gas
KR101435481B1 (ko) * 2014-02-12 2014-08-28 한국지질자원연구원 Ｔｉ―Ｍｏ 합금 스크랩을 이용한 3원계 티타늄 합금 분말의 제조방법
JP2017210129A (ja) 2016-05-26 2017-11-30 横浜ゴム株式会社 空気入りタイヤ

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
J. M. OH ET AL.: "Brief review of removal effect of hydrogen plasma arc melting on refining of pure titanium and titanium alloys", INT. J. HYDROGEN ENERGY, vol. 41, 2016, pages 23033 - 23041, XP029844337, DOI: 10.1016/j.ijhydene.2016.09.082
OH, JUNG-MIN ET AL.: "Brief review of removal effect of hydrogen-plasma arc melting on refining of pure titanium and titanium alloys", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol. 41, no. 48, 28 December 2016 (2016-12-28), pages 23033 - 23041, XP029844337, ISSN: 0360-3199 *
See also references of EP3705588A4
SU , YANQING ET AL.: "Deoxidation of Titanium alloy using hydrogen", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol. 34, no. 21, November 2009 (2009-11-01), pages 8958 - 8963, XP026698214, ISSN: 0360-3199 *
Y. SU ET AL.: "Deoxidation of titanium alloy using hydrogen", INT. J. HYDROGEN ENERGY, vol. 34, 2009, pages 8958 - 8963, XP026698214, DOI: 10.1016/j.ijhydene.2009.08.053

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RU2738280C1 (ru) 2020-12-11
EP3705588A4 (fr) 2021-03-10
CN111279000A (zh) 2020-06-12
JP6816339B2 (ja) 2021-01-20
EP3705588A1 (fr) 2020-09-09
JP2019081926A (ja) 2019-05-30
CN111279000B (zh) 2022-02-25
EP3705588B1 (fr) 2023-05-31
US20200239979A1 (en) 2020-07-30

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