SU1411308A1 - Glass for ferrite magnetic head gap - Google Patents

Glass for ferrite magnetic head gap Download PDF

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Publication number
SU1411308A1
SU1411308A1 SU853969945A SU3969945A SU1411308A1 SU 1411308 A1 SU1411308 A1 SU 1411308A1 SU 853969945 A SU853969945 A SU 853969945A SU 3969945 A SU3969945 A SU 3969945A SU 1411308 A1 SU1411308 A1 SU 1411308A1
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SU
USSR - Soviet Union
Prior art keywords
glass
ferrite magnetic
magnetic head
head gap
pbo
Prior art date
Application number
SU853969945A
Other languages
Russian (ru)
Inventor
Ольга Михайловна Смирнова
Евгений Александрович Файнберг
Татьяна Александровна Шумилина
Станислав Павлович Травкин
Вера Эммануиловна Орловская
Александр Яковлевич Горин
Original Assignee
Предприятие П/Я Х-5382
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Application filed by Предприятие П/Я Х-5382 filed Critical Предприятие П/Я Х-5382
Priority to SU853969945A priority Critical patent/SU1411308A1/en
Application granted granted Critical
Publication of SU1411308A1 publication Critical patent/SU1411308A1/en

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/102—Glass compositions containing silica with 40% to 90% silica, by weight containing lead
    • C03C3/105—Glass compositions containing silica with 40% to 90% silica, by weight containing lead containing aluminium

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

Изобретение относитс  к стекольной промьшшенности, в частности к составам стекол, дл  формировани  диэлектрического зазора ферритовых магнитньпс головок. С целью повьшени  микротвердости стекло дл  зазора фер- ритовой магнитной головки содержит, мас.%: SiO 53-60; 1,5-3,5; BaO 6-12; PbO 12-18; 3-6; 6-12; Li-jO 0.1-2; ZnO 3-6. ТКЛР The invention relates to glass industry, in particular to glass compositions, for forming the dielectric gap of ferrite magnetic heads. In order to increase the microhardness, the glass for the gap of the ferrite magnetic head contains, wt%: SiO 53-60; 1.5-3.5; BaO 6-12; PbO 12-18; 3-6; 6-12; Li-jO 0.1-2; ZnO 3-6. TCLE

Description

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Изобретение относитс  к составам - стекол, в частности к стеклу дл  формировани  диэлектрического зазора . ферритовых магнитных головок (МГ).The invention relates to compositions - glasses, in particular to glass for forming a dielectric gap. ferrite magnetic heads (MG).

Цель изобретени  - повьшение микротвердости .,The purpose of the invention is to increase the microhardness.,

Составы стекол приведены в табл,1.The compositions of the glasses are given in Table 1.

Дл  варки стекла используют песок, барий углекислый, глинозем, свинцовый сурик, поташ, углекислый литий ду. Вар т стекло в тигельной и горш- ковой. печах при температуре с последующей отливкой его в блоки. Свойства полученных стекол приведены .в табл.2о,.Sand, barium carbonate, alumina, red lead, potash, and lithium carbonate are used for glass melting. Var glass in the crucible and pot. furnaces at a temperature followed by casting it into blocks. The properties of the obtained glasses are given. In Table 2o ,.

II

Как.видно из табл,2, предлагаем стекло обладает требуемыми значени ми ТКЛР, достаточно низкой температу рой разм гчени  и высокой микротвердостью , что обеспечивает высокую изApparently from Table 2, we offer glass with the required TCLE values, a rather low softening temperature and high microhardness, which ensures a high

нn

- р113082 - p113082

носостойкость магнитных процессе службы.Magnetic process wear resistance.

5five

Claims (1)

Формула изобретени Invention Formula Стекло дл  зазора ферритовой магнитной головки, содержащее SiOj, I , ВаО, PbO, , , , jjQ отличающеес  тем, что, с целью повьппени  микротвердости, оно , дополнительно содержит ZnO при следующем соотношении компонентов, ; мас,%:Glass for the gap of a ferrite magnetic head containing SiOj, I, BaO, PbO,,,, jjQ characterized in that, in order to increase the microhardness, it additionally contains ZnO in the following ratio of components,; wt%: SiO/j53-60 iSiO / j53-60 i AljOj, 1,5-3,5AljOj, 1.5-3.5 ВаО6-12BaO6-12 PbO .12-18PbO .12-18 Na O3-6Na O3-6 K/jO .,6-12K / jO., 6-12 ,1-21-2 ZnO3-6ZnO3-6 Таблица1Table 1 1515 2020 Термический коэффициент линейного расширени , ei-,10 ,Thermal coefficient of linear expansion, ei-, 10, в интервале температур 20-300 Сin the temperature range 20-300 С 102102 Таблица 2table 2 9797 100100 9999 630 642 631 635630 642 631 635 640 650 645 630640 650 645 630 Ul 1,1084Ul 1,1084 Продолжение табл.2Continuation of table 2
SU853969945A 1985-10-25 1985-10-25 Glass for ferrite magnetic head gap SU1411308A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU853969945A SU1411308A1 (en) 1985-10-25 1985-10-25 Glass for ferrite magnetic head gap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU853969945A SU1411308A1 (en) 1985-10-25 1985-10-25 Glass for ferrite magnetic head gap

Publications (1)

Publication Number Publication Date
SU1411308A1 true SU1411308A1 (en) 1988-07-23

Family

ID=21202885

Family Applications (1)

Application Number Title Priority Date Filing Date
SU853969945A SU1411308A1 (en) 1985-10-25 1985-10-25 Glass for ferrite magnetic head gap

Country Status (1)

Country Link
SU (1) SU1411308A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Патент СМ № 3639976, кл. 29-603, опублик. 1972. Патент JP № 48-10924-73, кл. 21/А/29, опублик. 1973. *

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