SU350056A1 - - Google Patents
Info
- Publication number
- SU350056A1 SU350056A1 SU1630310A SU1630310A SU350056A1 SU 350056 A1 SU350056 A1 SU 350056A1 SU 1630310 A SU1630310 A SU 1630310A SU 1630310 A SU1630310 A SU 1630310A SU 350056 A1 SU350056 A1 SU 350056A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hour
- cooled
- rate
- products
- ferrite
- Prior art date
Links
- 229910000529 magnetic ferrite Inorganic materials 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000005712 crystallization Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Description
СПОСОБ METHOD
Известны способы изготовлени изделий из монокристаллов феррита со структурой шпинели, при которых заготовки изделий подвергают термообработке и постепенно охлаждают . Такие способы не обеспечивают требуемой магнитной добротности изделий.Methods are known for the manufacture of articles from ferrite single crystals with a spinel structure, in which the workpieces are heat treated and gradually cooled. Such methods do not provide the required magnetic quality of products.
Целью изобретени вл етс обеспечение высокой магнитной добротности изделий. Это достигаетс тем, что заготовки изделий нагревают до 800-950°С с выдержкой при этой температуре в течение 4-6 час и охлаждают со скоростью 0,5-1°С/Шс до 300°С, а затем со скоростью 10-50°С/час до комнатной температуры .The aim of the invention is to provide a high magnetic quality factor of the products. This is achieved by the fact that the product blanks are heated to 800-950 ° C with a holding at this temperature for 4-6 hours and cooled at a rate of 0.5-1 ° C / C to 300 ° C and then at a speed of 10-50 ° C / hour to room temperature.
Пример. Сферы, полученные методом механической обработки из монокристаллов Mg-феррита, выращенных методом кристаллизации из раствора в расплаве РЬО-ВоОз, помещаютс с помощью магнитной иголки в стаканчики из поликристаллического Mgферрита и перенос тс в печь, обеспечивающую нагрев в воздушной среде до 1000°С со скоростью не более 100°С/час. После выдержки при 900°С в течение б час дл установлени равновесного расиределени катионов в кристалле осуществл етс ирограммиое охлаждение печи со скоростью, не превышающей 1°С/шс до 300°С, после чего охлаждение до 20°С продолжаетс с выключенной печью со скоростью 10-50°С/{ас до комнатной температуры.Example. The spheres obtained by the method of machining from single crystals of Mg ferrite grown by crystallization from a solution in the PbO-BoO3 melt are placed with a magnetic needle into polycrystalline Mgferrite cups and transferred to a furnace that provides heating in air to 1000 ° C not more than 100 ° C / hour. After holding at 900 ° C for bh, to establish the equilibrium distribution of cations in the crystal, the program is cooled by the furnace at a rate not exceeding 1 ° C / mr to 300 ° C, after which the cooling to 20 ° C continues with the furnace turned off at a speed 10-50 ° C / {ac to room temperature.
П р с д М г т п 3 о б р е т е и и P p with d M g t p 3 o b p e and e and
Способ изготовлени изделий из монокрнсталлов феррита со структурой шпинели, при котором заготовки изделий подвергают термообработке и постепеппо охлаждают, отличающийс тем, что, с целью обеспечени высокой магнитной добротности, заготовки изделий нагревают до 800-950°С с выдержкой при этой температуре в течение 4-6 час и охлаждают со скоростью 0,5- °С/час до 300°С, а затем со скоростью 10-50°С/час до комнатной температуры. ИЗГОТОВЛЕНИЯ ИЗДЕЛИЙ ИЗ МОНОКРИСТАЛЛОВ ФЕРРИТА СО СТРУКТУРОЙ ШПИНЕЛИA method of manufacturing products from ferrite monocrystal with a spinel structure, in which the workpieces are heat treated and gradually cooled, characterized in that, to ensure high magnetic quality, the workpieces are heated to 800-950 ° C with a holding time at this temperature for 4- 6 hours and cooled at a rate of 0.5- ° C / hour to 300 ° C, and then at a rate of 10-50 ° C / hour to room temperature. MANUFACTURING OF PRODUCTS FROM FERRITE SINGLE CRYSTALS WITH A SPINEL STRUCTURE
Publications (1)
Publication Number | Publication Date |
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SU350056A1 true SU350056A1 (en) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140141371A1 (en) * | 2009-03-11 | 2014-05-22 | Fuji Xerox Co., Ltd. | Electrostatic image developing carrier, process of making the same, electrostatic image developer, process cartridge, image forming method, and image forming apparatus |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140141371A1 (en) * | 2009-03-11 | 2014-05-22 | Fuji Xerox Co., Ltd. | Electrostatic image developing carrier, process of making the same, electrostatic image developer, process cartridge, image forming method, and image forming apparatus |
US9176401B2 (en) * | 2009-03-11 | 2015-11-03 | Fuji Xerox Co., Ltd. | Electrostatic image developing carrier, process of making the same, electrostatic image developer, process cartridge, image forming method, and image forming apparatus |
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