Grinding liquid used for grinding back surface of storage hard disk magnetic head

Abstract

An abrasing liquid for abrasing the back of magnetic head for hard disc contains proportionally mineral oil containing C11-C13 alkane, oiling agent, superfine monocrystal diamond powder, antioxidizing anticorrosion agent, non-ionic surfactant, defoaming agent, and antistatic agent.

Description

technical field

[0001] The invention relates to a grinding liquid used for grinding the back surface of a magnetic head of a memory hard disk, and belongs to the technical field of surface ultrafine grinding. Background technique

[0002] The surface quality of memory hard disk heads is the bottleneck that limits the capacity and storage density of memory hard disks. In order to improve the surface quality of the magnetic head, many people have conducted a lot of research. The current research mainly focuses on the superfine grinding and polishing of the front side of the magnetic head, while the research on the back side of the magnetic head is rarely involved. The surface quality of the back of the magnetic head is very important to eliminate the stress concentration phenomenon of the magnetic head and the subsequent processing quality of the magnetic head. At present, the grinding liquid on the back of the magnetic head is the same as that on the front of the magnetic h...