JPS57132963A - Precision abrasion method of polycrystal ferrite - Google Patents

Precision abrasion method of polycrystal ferrite

Info

Publication number
JPS57132963A
JPS57132963A JP56017251A JP1725181A JPS57132963A JP S57132963 A JPS57132963 A JP S57132963A JP 56017251 A JP56017251 A JP 56017251A JP 1725181 A JP1725181 A JP 1725181A JP S57132963 A JPS57132963 A JP S57132963A
Authority
JP
Japan
Prior art keywords
percent
fine powder
mgo
abraded
objects
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56017251A
Other languages
Japanese (ja)
Other versions
JPS5943268B2 (en
Inventor
Toshiaki Wada
Yoshiaki Katsuyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Metals Ltd
Original Assignee
Sumitomo Special Metals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Priority to JP56017251A priority Critical patent/JPS5943268B2/en
Publication of JPS57132963A publication Critical patent/JPS57132963A/en
Publication of JPS5943268B2 publication Critical patent/JPS5943268B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes

Abstract

PURPOSE:To improve smoothness of surfaces without strain by abrading polycrystal ferrite to be used for magnetic heads with an alkaline liquid of MgO fine powder with a particle size of 0.001-0.05mum, Pb of 0.005 percent or less, and SO4 of 0.1-0.5 percent suspended in pure water. CONSTITUTION:A polisher made from a predetermined material is constituted to be rotatable in an alkaline region abrasion liquid of magnesium oxide (MgO) fine powder with a particle size of 0.001-0.05mum suspended in pure water, and a rotary member on which objects to be abraded is attached to the surface of the polisher, then the objects are abraded while being rotated. The processing efficiency is improved by controlling the contents of lead (Pb) at 0.005 percent or less and sulfur oxide (SO4) at 0.1-0.5 percent among impurities which are inevitably mingled with MgO fine powder during the production process.
JP56017251A 1981-02-06 1981-02-06 Precision polishing method for polycrystalline ferrite Expired JPS5943268B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56017251A JPS5943268B2 (en) 1981-02-06 1981-02-06 Precision polishing method for polycrystalline ferrite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56017251A JPS5943268B2 (en) 1981-02-06 1981-02-06 Precision polishing method for polycrystalline ferrite

Publications (2)

Publication Number Publication Date
JPS57132963A true JPS57132963A (en) 1982-08-17
JPS5943268B2 JPS5943268B2 (en) 1984-10-20

Family

ID=11938725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56017251A Expired JPS5943268B2 (en) 1981-02-06 1981-02-06 Precision polishing method for polycrystalline ferrite

Country Status (1)

Country Link
JP (1) JPS5943268B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61159370A (en) * 1985-01-08 1986-07-19 Tohoku Metal Ind Ltd Mirror face like polishing method
CN110026865A (en) * 2019-04-16 2019-07-19 冯肃钢 A kind of crystal plane grinding and polishing assembly line of double aluminium row circulations
CN110026865B (en) * 2019-04-16 2024-05-14 浦江联力工贸有限公司 Crystal plane polishing production line with double aluminum rows circulating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61159370A (en) * 1985-01-08 1986-07-19 Tohoku Metal Ind Ltd Mirror face like polishing method
CN110026865A (en) * 2019-04-16 2019-07-19 冯肃钢 A kind of crystal plane grinding and polishing assembly line of double aluminium row circulations
CN110026865B (en) * 2019-04-16 2024-05-14 浦江联力工贸有限公司 Crystal plane polishing production line with double aluminum rows circulating

Also Published As

Publication number Publication date
JPS5943268B2 (en) 1984-10-20

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