Magnetic head driving arm, its manufacturing method and surface treatment method

A technology for driving arms and magnetic heads, which is applied to driving/moving recording heads, the structure of arm parts, and the configuration/installation of recording heads, etc., can solve problems such as falling off, hindering information reading or writing, etc., and achieves excellent dimensional accuracy, The effect of improving read or write performance
CN104271806BActive Publication Date: 2017-05-17TOTOKU ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TOTOKU ELECTRIC CO LTD
Publication Date
2017-05-17

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Abstract

The present invention provides a magnetic head actuating arm in which very few oxide particles fall off from the surface of an aluminum alloy magnetic head actuating arm and a manufacturing method thereof. There are no protrusions formed by the oxide particles 30 on the surface S of the aluminum alloy magnetic head drive arm 1, and the average diameter D of the pits 40 formed by the traces after the oxide particles 30 are removed is 1 μm or more and 5 μm or less. The head drive arm solves the above problems. At this time, it is preferable that pits 40 that are 1 / 2 to 2 times the average diameter of the pits 40 exist in a range of 10 to 100 in a measurement area of ​​20 μm in length and width, and the reflectivity of the surface S of the head drive arm 1 In the wavelength range of 500 nm to 600 nm, it is 10% or more and 40% or less. This magnetic head drive arm 1 can be manufactured by contacting a solution containing fluoride ions after chemical polishing.
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Description

technical field

[0001] The present invention relates to a magnetic head driving arm for driving a magnetic head of a hard disk drive, a manufacturing method thereof, and a surface treatment method. Background technique

[0002] A hard disk drive is one of the information recording devices of a computer, such as Figure 6 As shown, a magnetic disk 101 and a magnetic head 102 are provided. The magnetic head 102 is provided on the tip of the drive 103 , and moves to a predetermined position on the magnetic disk 101 by the rotation of the drive 103 to write or read information to the drive 103 .

[0003] Usually, the driver 103 equipped with the magnetic head 102 is composed of the arm part 2, the coil part 3 and the support part 4, and its arm part 2 is provided with the slide bar 9 with the magnetic head 102 at the top, and the magnetic head connected to the slide bar 9 via the connecting part 8. The driving arm 1 constitutes. The coil unit 3 is constituted by a driving coil...

Claims

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