Production of REM (Dy, Tb)-Fe master alloys under industrial conditions
Creators
- 1. FGUP Sibirskij Khimicheskij Kombinat, Seversk (Russian Federation)
- 2. Severskij Tekhnologicheskij Inst. Tomskogo Politekhnicheskogo Univ., Seversk (Russian Federation)
Description
The process of producing (Dy, Tb)-Fe master alloys intended for obtaining magnetic alloys and permanent magnets is described as applied to the Siberian chemical plant. It is shown that the preparation of REM (Dy, Tb)-Fe master alloys of various compositions using the method of out-of-furnace calcium-thermic reduction of metal fluorides is practicable within a rather wide range of REM concentrations (30-80 mass %). A conclusion is drawn that main factors affecting the yield of REM-Fe master alloys and the yield of REM into the ingot are the degree of Fe and REM fluorination, granulometric composition of fluorides, reagents and metallic Fe powder, calcium-thermic reduction conditions, the composition of the master alloy obtained, storage conditions for initial raw materials and reagents
Abstract (Russian)
Описан процесс получения (Dy, Tb)-Fe лигатур, используемых для производства магнитных сплавов и постоянных магнитов, на Сибирском химическом комбинате. Показано, что получение РЗМ (Dy, Tb)-Fe лигатур разного состава методом кальциетермического внепечного восстановления фторидов металлов возможно в достаточно широком диапазоне концентраций РЗМ (30-80 мас. %). Сделан вывод, что основными факторами, влияющими на выход лигатур РЗМ-Fe и выход РЗМ в слиток, являются степени фторирования Fe и РЗМ, гранулометрический состав фторидов, реагентов, металлического порошка Fe, условия проведения кальциетермического восстановления, состав получаемой лигатуры, условия хранения исходного сырья и реагентовAdditional details
Additional titles
- Original title (Russian)
- Poluchenie ligatur RZM(Dy, Tb)-Fe v proizvodstvennykh usloviyakh
Publishing Information
- Publisher
- NIKI SKhK
- Imprint Place
- Seversk (Russian Federation)
- ISBN
- 5-93915-007-1
- Imprint Title
- Materials of the 6th scientific and technical conference of the Siberian Chemical Plant (in three parts). Part I
- Imprint Pagination
- 262 p.
- Journal Page Range
- p. 194-198
Conference
- Title
- 6. Scientific and technical conference of the Siberian Chemical Plant
- Original Conference Title
- 6. Nauchno-tekhnicheskaya konferentsiya Sibirskogo khimicheskogo kombinata
- Dates
- 17-20 Oct 2000
- Place
- Seversk (Russian Federation)
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 36038021
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CHEMICAL COMPOSITION; CHEMICAL REACTION YIELD; DYSPROSIUM ALLOYS; IRON ALLOYS; PERMANENT MAGNETS; PRODUCTION; RAW MATERIALS; REDUCTION; TERBIUM ALLOYS
- Descriptors DEC
- ALLOYS; CHEMICAL REACTIONS; EQUIPMENT; MAGNETS; MATERIALS; RARE EARTH ALLOYS; TRANSITION ELEMENT ALLOYS; YIELDS
Optional Information
- Notes
- 2 figs. Imprint:Materialy 6-j nauchno-tekhnicheskoj konferentsii Sibirskogo khimicheskogo kombinata (v trekh chastyakh). Chast' I