SU175560A1 - METHOD FOR HERMETIZATION OF LOW FREQUENCY TRANSFORMERS - Google Patents
METHOD FOR HERMETIZATION OF LOW FREQUENCY TRANSFORMERSInfo
- Publication number
- SU175560A1 SU175560A1 SU893541A SU893541A SU175560A1 SU 175560 A1 SU175560 A1 SU 175560A1 SU 893541 A SU893541 A SU 893541A SU 893541 A SU893541 A SU 893541A SU 175560 A1 SU175560 A1 SU 175560A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- frequency transformers
- hermetization
- low frequency
- compound
- transformers
- Prior art date
Links
- 150000001875 compounds Chemical class 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Description
В трансформаторах низкой частоты, содержащих магнитопроводы, изготовленные из железоникелиевых сплавов, например пермалло , и герметизированных заливочным компаундом , величина индуктивности в диапазоне рабочих температур сильно измен етс вследствие того, что все заливочные и обволакивающие составы имеют больший коэффициент усадки, чем указанные сплавы. Это приводит к расстройке аппаратуры и создает трудности при использовании ее в различных климатических услови х.In low-frequency transformers containing magnetic cores made of iron-nickel alloys, such as permallo, and sealed with a casting compound, the inductance in the temperature range varies greatly due to the fact that all casting and coating compositions have a greater shrinkage ratio than these alloys. This leads to a detuning of the apparatus and makes it difficult to use it in various climatic conditions.
Предлагаемый способ герметизации трансформаторов позвол ет уменьшить вли ние механических воздействий при усадке заливочного компаунда на колебани величины индуктивности сердечника трансформатора. С этой целью на магнитопровод предварительно нанос т равномерный по толщине слой из упругого материала, например кремнийорганического каучука, и после сушки производ т заливку компаундом. В качестве упругого материала может быть использован состав на основе кремнийорганического каучука СКТН ВТУ № ЛУ-118-62, который нанос т на все торцовые поверхности магнитопровода трансформатора .The proposed method of sealing transformers reduces the influence of mechanical effects during shrinkage of the casting compound on fluctuations in the inductance of the transformer core. To this end, a layer of elastic material, such as silicone rubber, is preliminarily applied to the magnetic core and, after drying, is filled with a compound. As an elastic material, a composition based on silicone rubber SKTN VTU No. LU-118-62, which is applied to all end surfaces of a transformer magnetic circuit, can be used.
Способ может найти применение также при создании различных конструкций трансформаторов низкой частоты, катушек индуктивности , дросселей и других изделий с повышенной стабильностью величины индуктивности вThe method can also be used to create various designs of low-frequency transformers, inductors, chokes and other products with increased stability of inductance values.
больших диапазонах температур.large temperature ranges.
Предмет изобретени Subject invention
Способ герметизации трансформаторов низкой частоты, содержащих магнитопроводы,A method of sealing low-frequency transformers containing magnetic circuits,
изготовленные, например, из пермалло путем заливки их компаундом, отличающийс тем, что, с целью защиты магнитопровода от механических воздействи11 при усадке заливочного компаунда, предварительно на магнитопровод нанос т равномерный по толщине слой из упругого материала, например кремнийорганического каучука, и после сушки производ т заливку компаундом.made, for example, from permallo by pouring them with a compound, characterized in that, in order to protect the magnetic conductor from mechanical stresses during the shrinkage of the casting compound, a uniformly thick layer of elastic material, for example silicone rubber, is applied to the magnetic conductor compounding.
Publications (1)
Publication Number | Publication Date |
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SU175560A1 true SU175560A1 (en) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7173509B2 (en) | 2001-10-05 | 2007-02-06 | Nippon Steel Corporation | Core having superior end face insulation and method of treating core end faces to give insulation coating |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7173509B2 (en) | 2001-10-05 | 2007-02-06 | Nippon Steel Corporation | Core having superior end face insulation and method of treating core end faces to give insulation coating |
AU2002335206B2 (en) * | 2001-10-05 | 2008-04-03 | Nippon Steel Corporation | Iron core exhibiting excellent insulating property at end face, and method for coating end face of iron core |
US7471182B2 (en) | 2001-10-05 | 2008-12-30 | Nippon Steel Corporation | Core having superior end face insulation and method of treating core end faces to give insulation coating |
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