SU736183A1

SU736183A1 - Method of assembling large permanent magnets

Info

Publication number: SU736183A1
Application number: SU782684825A
Authority: SU
Inventors: Феликс Маркусович Сальковский; Валерий Владимирович Сергеев; Владимир Семенович Растегаев; Марина Алексеевна Чохели; Людмила Васильевна Потапова
Original assignee: Предприятие П/Я Г-4128; Предприятие П/Я М-5225
Priority date: 1978-11-10
Filing date: 1978-11-10
Publication date: 1980-05-25

Description

1one

Изобретение относитс к способам получени крупногабаритных посто нных магнитов, состо щих из отдельных намагниченных до насыщени модулей, например посто нных магнитов из интерметаллического соединени самарийкобальт .The invention relates to methods for producing large-sized permanent magnets consisting of individual modules magnetized to saturation, for example permanent magnets from an intermetallic compound, samaricobalt.

Известен способ изготовлени крупногабаритных посто нных магнитов, заключающийс в том, что соединение отдельных модулей осуществл етс методом диффузионной сварки в вакууме при повыщенной температуре 1}. Так как температура при зтом выше точки Кюри свариваемых посто нных магнитов, например дл магнитов из интерметаллического соединени самарий-кобальт температура сварки 900° С, а температура Кюри 720°С, то дл обле1т1ени процесс соединени модулей производ т с чередующейс пол рностью. При этом происходит замыкание магнитных потоков соседних магнитов, и сборка их производитс сравнительно легко.A known method of manufacturing large-sized permanent magnets is that the connection of individual modules is carried out by the method of diffusion welding in vacuum at an elevated temperature of 1}. Since the temperature at this point is above the Curie point of the permanent magnets being welded, for example, for samarium – cobalt intermetallic magnets, the welding temperature is 900 ° C, and the Curie temperature is 720 ° C, the modules are connected with alternating polarity for coating. In this case, the magnetic fluxes of the adjacent magnets are closed, and their assembly is relatively easy.

Однако получаемый таким образом блок не- имеет одноименного полюса на одной плоскости .However, the block obtained in this way does not have a pole of the same name on the same plane.

Известен способ сборки крупногабаритных посто нных магнитов из намагниченных до СОСТОЯ1ШЯ технического насыщени составл ющих модулей, заключающийс в соединении составл ющих модулей на электромагнитной плите 2. Электромапштна плита состоит из набора железных сердеч шков с чередующейс пол рностью. Составным элементом плиты вл етс железный сердечник с навитой на нем обмоткой. При пропускании через A known method of assembling large-sized permanent magnets from magnetized to the STATE technical saturation of the components of the modules consists in connecting the components of the modules on the electromagnetic plate 2. The electromaterial plate consists of a set of iron hearts with alternating polarity. The component of the slab is an iron core with a winding wound on it. When passing through

10 обмотку тока плИта становитс магнитной и прит гивает устанавливаемые на нее магнитные детали.10, the current of the plate is magnetic and attracts the magnetic parts mounted on it.

Недостатком этого способа вл етс The disadvantage of this method is

15 чередующа с пол рность звеньев магнитной плиты, поэтому он не может быть применен дл сборки однопол рных модулей в крупногабаритный мап)ит. Кроме того, дл сн ти собранного крупногабаритного магнита с маг20 нитной плиты требуетс преодолеть больщие силы прит жени .15 alternating polarity of the magnetic plate links, therefore, it cannot be used for assembling unipolar modules into a large-sized map and it. In addition, in order to remove the assembled large magnet from the magnet plate, it is necessary to overcome the high attractive forces.

Claims

The aim of the invention is to reduce the laboriousness of the assembly process of twist- and briti-bDi magnets and improve the quality of the connection. This is achieved by the fact that the assembly is carried out on an electromagneton plate, in which a field is created having a field of rotation that coincides at the time of assembly with the direction of magnetization of the modules, and after completion of the assembly for an edge of large-sized magnets create a floating field of reverse polarity not exceeding the value of forces collected modules. The use of a magitic field — when assembling modules into a twisted-sized permanent magnet, makes it possible to minimize the effect of the osh repulsion between own fields; modules by changing the configuration of i-i: own fields of the modules by an external field: and by bringing them closer to a plane-parallel one. ; The maximum decrease in repulsive forces leads to a tighter fit of the modules to one another, which leads to an increase in the quality of the compound. The proposed procedure is as follows. Connectable magnets from the intermetallic samarium-cobalt compound, which have the remaining magnetic field Br 0.900, 85 T, coercive force - 520-540 kA / m, size 15x15x10 mm (texture 10 mm in size), are placed with the same poles on one of the poles e / shktro magnet. Then a current is switched on that generates a field in the electromagnet gap in the order of the magnitude of the self-scattering field of the assembled modules (“240 kA / m), which has n4. the board coinciding with their magnetization field. Magnets are brought closer to one another, connected (glued). After the completion of the connection process, in order to facilitate the removal of the large-sized magnet, the field is reversed and gradually increased to a value that does not exceed the speculative force of the modules being assembled. Claims The method of assembling large-sized permanent magnets from modules that are magnetized to the state of technical saturation consists in connecting the component modules on an electromagnetic plate, in order to reduce the complexity of the assembly process of large-sized magnets and improve the quality of the connection, assembling the wire t on an electromagnetic plate, in which a field is created having a polarity that at the time of assembly coincides with the direction of magnetization of the modules, and wearing the end of the assembly for whith large magnets create smoothly vozrastshoschee Nole reverse polarity does not exceed the coercive, force assembled modules. Sources of information taken into account in the examination 1..The author's certificate of the USSR No. 598697, cl. H 01 F 1/08, 1978.

2.Lurye B. B. and others. Grinding machines and their adjustment. M., Higher School, 1972,