WO2019160439A1 - Procédé de production de lingots d'alliages de zirconium à base d'une éponge de magnésium thermique - Google Patents

Procédé de production de lingots d'alliages de zirconium à base d'une éponge de magnésium thermique Download PDF

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Publication number
WO2019160439A1
WO2019160439A1 PCT/RU2018/000696 RU2018000696W WO2019160439A1 WO 2019160439 A1 WO2019160439 A1 WO 2019160439A1 RU 2018000696 W RU2018000696 W RU 2018000696W WO 2019160439 A1 WO2019160439 A1 WO 2019160439A1
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WIPO (PCT)
Prior art keywords
zirconium
ligature
tablets
sponge
ingots
Prior art date
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Ceased
Application number
PCT/RU2018/000696
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English (en)
Russian (ru)
Inventor
Александр Владимирович АЛЕКСАНДРОВ
Валентина Михайловна АРЖАКОВА
Александр Гусманович ЗИГАНШИН
Александр Анатольевич КАБАНОВ
Андрей Алексеевич МАРТЫНОВ
Владимир Владимирович НОВИКОВ
Валерий Андреевич ПОПОВИЧ
Надежда Константиновна ФИЛАТОВА
Дмитрий Аркадьевич ХУДЯКОВ
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Chepetsky Mechanical Plan JSC
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Chepetsky Mechanical Plan JSC
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Filing date
Publication date
Application filed by Chepetsky Mechanical Plan JSC filed Critical Chepetsky Mechanical Plan JSC
Publication of WO2019160439A1 publication Critical patent/WO2019160439A1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • 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
    • C22B9/20—Arc remelting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C16/00—Alloys based on zirconium

Definitions

  • a known method of producing ingots of zirconium alloys using shavings from ingots of binary alloys made by the metallurgical method (metallothermy, vacuum arc or electron beam skull melting). Chips are cut from a ligature ingot, mixed with a zirconium sponge and briquettes are pressed, from which consumable electrodes are formed, and then ingots of zirconium alloys based on a sponge are melted by repeated vacuum-arc remelting (patent RU 2313591, published December 27, 2007).
  • the disadvantage of this method is the difficulty of centering ligature briquettes in industrial briquettes.
  • the uniformity of the distribution of alloying elements in the volume decreases briquette, consumable electrode and, accordingly, in the volume of the ingot.
  • the assembly thus obtained is used as a consumable electrode for the first vacuum arc remelting.
  • the tubes with ligature tablets are advanced in melting compared to the central part of the consumable electrode due to their different densities, which leads to a decrease in chemical uniformity in the volume of the ingot.
  • the task of the invention is to develop a method for introducing alloying elements, providing high chemical uniformity of ingots of zirconium alloys of various compositions based on a magnetothermic sponge.
  • the technical result is the provision of high chemical uniformity of ingots of zirconium alloys based on a magnetothermic sponge due to the uniform distribution of alloying elements in the volume of briquettes, consumable electrodes and ingots.
  • the technical result is achieved by the fact that in the method for producing ingots from zirconium alloys based on a magnetothermic sponge containing refractory and / or fusible alloying elements, ligature tablets are obtained, briquettes are pressed from a charge based on zirconium-containing materials, consumable electrodes are formed and the ingot is melted, and before pressing the briquettes, the obtained ligature tablets are evenly distributed in the mixture by mechanical mixing, and the formation of the consumable electrode is carried out by welding the briquettes together.
  • Ligature tablets are obtained by mixing and pressing the alloying components in pure form or in the form of compounds separately or with the addition of, according to the results of the calculation of the electrolytic zirconium powder or zirconium sponge with a fraction of not more than 2 mm
  • m T is the mass of the ligature tablet, the dimensions of which are comparable to the average fraction of the sponge, kg;
  • Ligature tablets are pressed with a specific pressing pressure of at least 5000 kg / cm to provide the necessary mechanical strength.
  • the problem is solved by introducing alloying components into the mixture in the form of tablets of a master alloy of a multicomponent or binary composition. You can get ligature tablets of any composition in the form of a homogeneous mechanical mixture of powders of alloying components with the addition of a zirconium-containing component to this mixture.
  • the specific pressure should be at least 5000 kg / cm. With a lower value of specific pressure during mixing with zirconium-containing material, the surface of the ligature tablets crumbles and they break, which leads to a decrease in the chemical uniformity of the briquettes and, as a result, the smelted ingot.
  • a mechanical mixer is used.
  • ligature tablets For the manufacture of ligature tablets, a SMU-PB-P-100 brand of drunken type oversized mixer manufactured by Rossmash Scientific Production Association and a KST-1416 tablet press (Shanghai Tianxiang & Chentai Pharmaceutical Machinery) were used. The specific pressing pressure of the tablets was 5000 kg / cm 2 . Ligature tablets made with a lower specific pressing pressure were destroyed during mixing with zirconium-containing material in the mixer, and parts of the ligature tablets spilled to the bottom of the mixer.
  • Zirconium-containing materials were mixed with ligature tablets in a ⁇ -2,5 brand planetary screw mixer and briquettes 80 mm in diameter, 32 kg in weight, 32 kg were pressed from the resulting mixture on a GP-700 hydraulic press.
  • Two consumable electrodes were formed from electron-beam welding briquettes in an electron-beam installation of the ES 1/3/60 grade.
  • the second vacuum-arc remelting was carried out at an amperage 3 kA.
  • the mass of the Na 1 and Ns 2 ingots of the second remelting after turning was 45 kg and 44.8 kg.
  • Table 1 shows the distribution of alloying elements along the height of the Na 1 and a 2 ingots.
  • the Na 2 ingot has high chemical uniformity over the entire ingot height, and the Na 1 ingot only in its middle part.
  • Table 2 shows the distribution of alloying elements in the cross section of the Na 1 and Na 2 ingots.
  • the Na 2 ingot has high chemical uniformity in all the studied cross sections, the uniformity of the Na 1 ingot is satisfactory.
  • the inventive method provides high chemical uniformity of the ingots of zirconium alloys based on a magnetothermic sponge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention concerne la production d'alliages de zirconium à base d'éponge de magnésium thermique contenant des éléments d'alliage à fusion facile et/ou difficile. Le procédé de cette invention consiste à obtenir des comprimés d'alliage mère, presser des briques à partir d'une charge du four à base de matériaux à zirconium, former les électrodes sacrifiées et produire un lingot. Avant de presser les briques, les comprimés d'alliage mère sont répartis régulièrement dans la charge du four par mélange mécanique, et la formation des électrodes sacrifiées se fait par le soudage des briques entre elles. On assure une homogénéité chimique élevée des lingots d'alliage de zirconium à base d'une éponge de magnésium thermique grâce à une répartition régulière des éléments d'alliage dans le volume du lingot.
PCT/RU2018/000696 2018-02-13 2018-10-24 Procédé de production de lingots d'alliages de zirconium à base d'une éponge de magnésium thermique Ceased WO2019160439A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2018105420A RU2700892C2 (ru) 2018-02-13 2018-02-13 Способ получения слитков из сплавов циркония на основе магниетермической губки
RU2018105420 2018-02-13

Publications (1)

Publication Number Publication Date
WO2019160439A1 true WO2019160439A1 (fr) 2019-08-22

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PCT/RU2018/000696 Ceased WO2019160439A1 (fr) 2018-02-13 2018-10-24 Procédé de production de lingots d'alliages de zirconium à base d'une éponge de magnésium thermique

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RU (1) RU2700892C2 (fr)
WO (1) WO2019160439A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111893311A (zh) * 2020-08-07 2020-11-06 上海大学 一种利用静磁场加速去除电子束熔炼过程杂质元素的装置和方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4141890B1 (fr) 2021-05-31 2025-04-23 Joint-Stock Company "TVEL" Pastille de combustible pour réacteur nucléaire à caloporteur et modérateur eau (vver)
WO2023167611A1 (fr) * 2022-03-04 2023-09-07 Акционерное общество "Чепецкий механический завод" Procédé de production de lingots d'alliages de zirconium à base d'une éponge de magnésium thermique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4226647A (en) * 1973-05-11 1980-10-07 Atomic Energy Of Canada Limited Heat-treated zirconium alloy product
JPS58161735A (ja) * 1982-03-19 1983-09-26 Sumitomo Metal Ind Ltd チタン合金またはジルコニウム合金の溶解法
JPS6130637A (ja) * 1984-07-20 1986-02-12 Hitachi Ltd ジルコニウム合金またはチタン合金の溶解法
RU2365464C2 (ru) * 2007-11-06 2009-08-27 Открытое акционерное общество "Чепецкий механический завод" (ОАО ЧМЗ) Способ получения расходуемого электрода на основе губчатого металла

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2376902A1 (fr) * 1977-01-07 1978-08-04 Ugine Aciers Nouvel alliage-mere pour la preparation des alliages de zirconium
RU2313591C2 (ru) * 2005-12-19 2007-12-27 Открытое акционерное общество "Чепецкий механический завод" (ОАО ЧМЗ) Способ получения лигатуры цирконий-ниобий

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4226647A (en) * 1973-05-11 1980-10-07 Atomic Energy Of Canada Limited Heat-treated zirconium alloy product
JPS58161735A (ja) * 1982-03-19 1983-09-26 Sumitomo Metal Ind Ltd チタン合金またはジルコニウム合金の溶解法
JPS6130637A (ja) * 1984-07-20 1986-02-12 Hitachi Ltd ジルコニウム合金またはチタン合金の溶解法
RU2365464C2 (ru) * 2007-11-06 2009-08-27 Открытое акционерное общество "Чепецкий механический завод" (ОАО ЧМЗ) Способ получения расходуемого электрода на основе губчатого металла

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111893311A (zh) * 2020-08-07 2020-11-06 上海大学 一种利用静磁场加速去除电子束熔炼过程杂质元素的装置和方法

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Publication number Publication date
RU2018105420A (ru) 2019-08-13
RU2700892C2 (ru) 2019-09-23
RU2018105420A3 (fr) 2019-08-13

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