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Application filed by Г.Х. Геворкян, н Г.Х. Геворк, Б.Л. Дарбинян, н Б.Л. Дарбин, Ю.С. Чатинян, н Ю.С. ЧатинfiledCriticalГ.Х. Геворкян
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Способ получени изол ционной пленки на листах холоднокатаной трансформаторной стали путем окислени поверхности последней кислородом , выдел емым адсорбирующим его веществом, отличающийс тем, что, с целью получени пленки с высокими электроизол ционными свойствами, состо щей в основном из гематита (« - FaOg), окисление стали ведут при температуре 750-800° в среде глинозема, зерна которого имеют в поперечнике 3-5 мк.A method of producing an insulating film on sheets of cold-rolled transformer steel by oxidizing the surface with oxygen with oxygen released by an adsorbing substance, characterized in that, in order to produce a film with high electrical insulating properties, consisting mainly of hematite ("- FaOg), oxidation steel is carried out at a temperature of 750-800 ° in the environment of alumina, the grains of which are 3-5 microns in diameter.
SU632636A1959-07-031959-07-03
The method of obtaining the insulating film on sheets of cold-rolled transformer steel
SU130053A1
(en)
Influence of Additions on the Conductivity of Copper. II. Influence on the Electrical Conductivity of Copper by Several Metallic Impurities and by Oxygen
Improvements in or relating to methods of manufacturing, by photographic agency, external, electrically conductive noble - metal layers on non - metallic, non - electrically conductive supports and to products manufactured by these methods