Polishing solution for processing ultra-smooth bearing steel surface and application thereof

Abstract

The invention discloses a polishing solution for processing an ultra-smooth bearing steel surface and application thereof. The polishing solution comprises 0.01-40 wt% of grinding particle, 0-10 wt% of oxidizer, 0.1-10 wt% of metal complexing agent, 0-5 wt% of metal corrosion inhibitor and the balance of water. The grinding particle is selected from at least one of monocrystal diamond, polycrystalline diamond, aluminum oxide, zirconium dioxide, titanium dioxide, cerium oxide, fumed silica and colloidal silicon dioxide; the oxidizer is selected from at least one of periodate, iodate, perchlorate, persulfate and hydrogen peroxide; the metal complexing agent is selected from at least one of ammonia, amino acid and organic acid; and the metal corrosion inhibitor is selected from at least one of nitrogen-containing heterocycle derivatives, sulfur-containing heterocycle derivatives and heterocycle derivatives simultaneously containing nitrogen and sulfur. The bearing steel obtained by using the polishing solution has the functional characteristics of low surface roughness and low number of defects, and thus, can be used in precise devices.

Description

technical field

[0001] The invention belongs to the technical field of materials, and in particular, the invention relates to a polishing liquid for processing the surface of ultra-smooth bearing steel and its application. Background technique

[0002] Because bearing steel (such as GCr15 bearing steel) has excellent mechanical properties and is easy to produce, it is widely used in the field of machinery manufacturing. The surface quality of bearing steels has a critical impact on the functional properties of engineered components, such as coefficient of friction and wear resistance. In recent years, the industry's demand for precision devices using bearing steel as a raw material has gradually increased. In order to achieve satisfactory device functional properties, bearing steels are required to have low surface roughness and a low number of defects. However, it is difficult to achieve ultra-smooth bearing steel surfaces with nanoscale surface roughness by current techn...

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