JPS552967A - Magnetized surface strength testing method of magnetic disc - Google Patents

Magnetized surface strength testing method of magnetic disc

Info

Publication number
JPS552967A
JPS552967A JP7623878A JP7623878A JPS552967A JP S552967 A JPS552967 A JP S552967A JP 7623878 A JP7623878 A JP 7623878A JP 7623878 A JP7623878 A JP 7623878A JP S552967 A JPS552967 A JP S552967A
Authority
JP
Japan
Prior art keywords
magnetic disc
sliding
head
measured
disc
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
JP7623878A
Other languages
Japanese (ja)
Other versions
JPS6036012B2 (en
Inventor
Hiroyasu Oda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7623878A priority Critical patent/JPS6036012B2/en
Publication of JPS552967A publication Critical patent/JPS552967A/en
Publication of JPS6036012B2 publication Critical patent/JPS6036012B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To enable any one or all of sliding noise, sliding friction torque, volume of dust generation and color of disc surface to be determined accurately by pressing a test piece, made of the same material as a magnetic head, against surface of a rotating magnetic disc so that the test piece slides on the disc surface.
CONSTITUTION: Rotation of a motor 3, through a conduction belt, drives a spindle 2 and rotates a magnetic disc 1 at a high speed. A test head is attached onto tip of a head arm 7 installed onto a carriage 4, and this is pressed against surface of a magnetic disc 1 by a pressure-applying spring 5. Variation of color of the magnetic disc surface is inspected visually, and dust generated by sliding between the magnetic disc 1 and the test head is measured by a dust counter 9 and the sliding noise is measured by a noise pressure meter 6. Further, sliding friction is measured by a resistance line gage attached to a part of the head arm 7. It is possible, in this way, to obtain result of determination accurately in a short period of time.
COPYRIGHT: (C)1980,JPO&Japio
JP7623878A 1978-06-23 1978-06-23 Strength test method for magnetic disk magnetic surface Expired JPS6036012B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7623878A JPS6036012B2 (en) 1978-06-23 1978-06-23 Strength test method for magnetic disk magnetic surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7623878A JPS6036012B2 (en) 1978-06-23 1978-06-23 Strength test method for magnetic disk magnetic surface

Publications (2)

Publication Number Publication Date
JPS552967A true JPS552967A (en) 1980-01-10
JPS6036012B2 JPS6036012B2 (en) 1985-08-17

Family

ID=13599585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7623878A Expired JPS6036012B2 (en) 1978-06-23 1978-06-23 Strength test method for magnetic disk magnetic surface

Country Status (1)

Country Link
JP (1) JPS6036012B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148135A (en) * 1983-02-14 1984-08-24 Matsushita Electric Ind Co Ltd Evaluating method of durability for magnetic disk
JPS60133539A (en) * 1983-12-22 1985-07-16 Hitachi Ltd Method for appreciating disc strength of magnetic disc
US4594878A (en) * 1983-06-24 1986-06-17 Nippo Sangyo Co. Ltd. Dynamic friction coefficient measuring apparatus
US4646557A (en) * 1986-02-28 1987-03-03 Kavilco Corporation Dynamic force measurement system
JPS62161040A (en) * 1985-05-10 1987-07-17 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Method of measuring interface characteristic
US5212657A (en) * 1989-02-01 1993-05-18 Onoda Cement Co., Ltd. Kinetofrictional force testing apparatus
JP2007526473A (en) * 2004-03-04 2007-09-13 セントレ ナシオナル デ ラ ルシェルシェ シエンティフィーク セエヌエールエス Frictional acoustic sensor
CN105115845A (en) * 2015-10-14 2015-12-02 中南大学 Material shearing impact wear tester and testing method thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148135A (en) * 1983-02-14 1984-08-24 Matsushita Electric Ind Co Ltd Evaluating method of durability for magnetic disk
US4594878A (en) * 1983-06-24 1986-06-17 Nippo Sangyo Co. Ltd. Dynamic friction coefficient measuring apparatus
JPS60133539A (en) * 1983-12-22 1985-07-16 Hitachi Ltd Method for appreciating disc strength of magnetic disc
JPH0352647B2 (en) * 1983-12-22 1991-08-12 Hitachi Ltd
JPS62161040A (en) * 1985-05-10 1987-07-17 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Method of measuring interface characteristic
JPH0457215B2 (en) * 1985-05-10 1992-09-10 Intaanashonaru Bijinesu Mashiinzu Corp
US4646557A (en) * 1986-02-28 1987-03-03 Kavilco Corporation Dynamic force measurement system
US5212657A (en) * 1989-02-01 1993-05-18 Onoda Cement Co., Ltd. Kinetofrictional force testing apparatus
JP2007526473A (en) * 2004-03-04 2007-09-13 セントレ ナシオナル デ ラ ルシェルシェ シエンティフィーク セエヌエールエス Frictional acoustic sensor
JP4722909B2 (en) * 2004-03-04 2011-07-13 セントレ ナシオナル デ ラ ルシェルシェ シエンティフィーク セエヌエールエス Frictional acoustic sensor
CN105115845A (en) * 2015-10-14 2015-12-02 中南大学 Material shearing impact wear tester and testing method thereof

Also Published As

Publication number Publication date
JPS6036012B2 (en) 1985-08-17

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