JPS55146626A - Manufacture of magnetic head case - Google Patents

Manufacture of magnetic head case

Info

Publication number
JPS55146626A
JPS55146626A JP5294679A JP5294679A JPS55146626A JP S55146626 A JPS55146626 A JP S55146626A JP 5294679 A JP5294679 A JP 5294679A JP 5294679 A JP5294679 A JP 5294679A JP S55146626 A JPS55146626 A JP S55146626A
Authority
JP
Japan
Prior art keywords
substance
concave part
case
plate
wear
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
JP5294679A
Other languages
Japanese (ja)
Other versions
JPS6333203B2 (en
Inventor
Naohiko Toshimitsu
Heihachiro Kobayashi
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.)
Canon Inc
Canon Electronics Inc
Original Assignee
Canon Inc
Canon Electronics Inc
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 Canon Inc, Canon Electronics Inc filed Critical Canon Inc
Priority to JP5294679A priority Critical patent/JPS55146626A/en
Publication of JPS55146626A publication Critical patent/JPS55146626A/en
Publication of JPS6333203B2 publication Critical patent/JPS6333203B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To manufacture a magnetic head case easily at low cost by bringing a substance with resistance to wear into contact with a concave part provided to the front face of a case made of a substance of high magnetic permeability and by welding the resistance-to-wear substance to the substance of high magnetic permeability of the concave part.
CONSTITUTION: Case 3 made of a substance of high magnetic permeability such as permalloy is provided with opening part 3a through which a core not shown in the figure is exposed and concave part 3b where sliding plate 4 is fitted; and depth (d) of concave part (b) is made nearly equal to thickness (t) of plate 4 and convex part 3c is formed in concave part 3b. Plate 4 is formed of the same substance with resistance to wear as that of the above-mentioned core. When electric power is supplied from electric power source 6 with case 3 and plate 4 contact-held between electrodes 5a and 5b, current density near convex part 3c provided in concave part 3b is increased and the substance near convex part 3c is melted by Joule heat, thereby spot-welding case 3 and plate 4.
COPYRIGHT: (C)1980,JPO&Japio
JP5294679A 1979-04-28 1979-04-28 Manufacture of magnetic head case Granted JPS55146626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5294679A JPS55146626A (en) 1979-04-28 1979-04-28 Manufacture of magnetic head case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5294679A JPS55146626A (en) 1979-04-28 1979-04-28 Manufacture of magnetic head case

Publications (2)

Publication Number Publication Date
JPS55146626A true JPS55146626A (en) 1980-11-15
JPS6333203B2 JPS6333203B2 (en) 1988-07-04

Family

ID=12929029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5294679A Granted JPS55146626A (en) 1979-04-28 1979-04-28 Manufacture of magnetic head case

Country Status (1)

Country Link
JP (1) JPS55146626A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1062366C (en) * 1993-07-09 2001-02-21 阿鲁普斯电气株式会社 Welding structure of electronic equipment part

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160123U (en) * 1978-04-28 1979-11-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160123U (en) * 1978-04-28 1979-11-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1062366C (en) * 1993-07-09 2001-02-21 阿鲁普斯电气株式会社 Welding structure of electronic equipment part

Also Published As

Publication number Publication date
JPS6333203B2 (en) 1988-07-04

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