RU2009105199A - METHOD FOR PRODUCING TECHNICALLY PURE METAL AND SINGLE CRYSTAL FROM IT - Google Patents
METHOD FOR PRODUCING TECHNICALLY PURE METAL AND SINGLE CRYSTAL FROM IT Download PDFInfo
- Publication number
- RU2009105199A RU2009105199A RU2009105199/02A RU2009105199A RU2009105199A RU 2009105199 A RU2009105199 A RU 2009105199A RU 2009105199/02 A RU2009105199/02 A RU 2009105199/02A RU 2009105199 A RU2009105199 A RU 2009105199A RU 2009105199 A RU2009105199 A RU 2009105199A
- Authority
- RU
- Russia
- Prior art keywords
- mold
- casting
- temperature
- melt
- speed
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
- C30B11/008—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method using centrifugal force to the charge
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
1. Способ получения технически чистого металла и монокристалла из него, заключающийся в том, что заливают перегретый расплав в изложницу центробежного кристаллизатора, вращающуюся с постоянной заданной скоростью, причем скорость вращения выбирают из условия создания силового поля с гравитационным коэффициентом, обеспечивающим формирование в отливке зерна максимального размера после завершения всех процессов кристаллизации. !2. Способ по п.1, отличающийся тем, что значение гравитационного коэффициента выбирают из предварительно полученной зависимости размера зерна отливки металла от гравитационного коэффициента при проведении процессов кристаллизации в нестационарных силовых полях. ! 3. Способ по п.1, отличающийся тем, что температуру заливаемого в изложницу расплава выбирают из условия, что величина перегрева над температурой ликвидус с учетом скорости равномерного объемного охлаждения расплава обеспечивает время существования его жидкой фазы достаточное для формирования монокристаллической структуры отливки до достижения ею температуры начала процесса естественной кристаллизации. ! 4. Способ по п.3, отличающийся тем, что используют изложницу с толщиной футеровки из условия обеспечения объемного равномерного охлаждения расплава в изложнице со скоростью не более 0,05°С/с и при необходимости ее дополнительно подогревают для обеспечения указанной скорости. ! 5. Способ по п.1, отличающийся тем, что поддерживают выбранную скорость вращения изложницы до достижения температуры отливки значения температуры, при которой в данном металле сплаве все процессы кристаллизации при естественных условиях заве� 1. A method of obtaining technically pure metal and a single crystal from it, which consists in pouring an overheated melt into a mold of a centrifugal crystallizer rotating at a constant predetermined speed, the rotation speed being chosen from the conditions for creating a force field with a gravitational coefficient that ensures the formation of maximum grain in the casting size after completion of all crystallization processes. ! 2. The method according to claim 1, characterized in that the value of the gravitational coefficient is selected from a previously obtained dependence of the grain size of the metal casting on the gravitational coefficient during crystallization processes in unsteady force fields. ! 3. The method according to claim 1, characterized in that the temperature of the melt poured into the mold is selected from the condition that the superheat over the liquidus temperature, taking into account the rate of uniform volumetric cooling of the melt, ensures the existence of its liquid phase sufficient for the formation of a single-crystal structure of the casting until it reaches temperature the beginning of the process of natural crystallization. ! 4. The method according to claim 3, characterized in that the use of a mold with a thickness of the lining from the condition of providing volumetric uniform cooling of the melt in the mold with a speed of not more than 0.05 ° C / s and, if necessary, it is additionally heated to ensure the specified speed. ! 5. The method according to claim 1, characterized in that they support the selected mold rotation speed until the casting temperature is reached at a temperature at which in a given metal alloy all crystallization processes under natural conditions
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2009105199/02A RU2009105199A (en) | 2009-02-16 | 2009-02-16 | METHOD FOR PRODUCING TECHNICALLY PURE METAL AND SINGLE CRYSTAL FROM IT |
PCT/RU2010/000063 WO2010093283A2 (en) | 2009-02-16 | 2010-02-15 | Method for producing a commercially pure metal and a monocrystal therefrom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2009105199/02A RU2009105199A (en) | 2009-02-16 | 2009-02-16 | METHOD FOR PRODUCING TECHNICALLY PURE METAL AND SINGLE CRYSTAL FROM IT |
Publications (1)
Publication Number | Publication Date |
---|---|
RU2009105199A true RU2009105199A (en) | 2010-08-27 |
Family
ID=42562231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2009105199/02A RU2009105199A (en) | 2009-02-16 | 2009-02-16 | METHOD FOR PRODUCING TECHNICALLY PURE METAL AND SINGLE CRYSTAL FROM IT |
Country Status (2)
Country | Link |
---|---|
RU (1) | RU2009105199A (en) |
WO (1) | WO2010093283A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116200605A (en) * | 2023-01-05 | 2023-06-02 | 中国科学院过程工程研究所 | Production method for efficiently removing impurities from copper enameled wire after paint removal |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2098228C1 (en) * | 1993-03-12 | 1997-12-10 | Акционерное общество открытого типа "Научно-исследовательский институт технологии и организации производства двигателей" | Method of centrifugal casting of complexly profiled pieces with directionally oriented structure |
RU2312156C2 (en) * | 2005-08-04 | 2007-12-10 | Олег Владимирович Анисимов | Method of production of superpurity metals and monocrystals from them |
RU2320452C2 (en) * | 2005-11-29 | 2008-03-27 | Олег Владимирович Анисимов | Ingot for rolling production method and ingot mold for casting such ingot |
RU2339485C2 (en) * | 2006-01-16 | 2008-11-27 | Олег Владимирович Анисимов | Method for manufacturing foundry from metallic melt |
-
2009
- 2009-02-16 RU RU2009105199/02A patent/RU2009105199A/en not_active Application Discontinuation
-
2010
- 2010-02-15 WO PCT/RU2010/000063 patent/WO2010093283A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2010093283A3 (en) | 2010-10-07 |
WO2010093283A2 (en) | 2010-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA92 | Acknowledgement of application withdrawn (lack of supplementary materials submitted) |
Effective date: 20101123 |