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US 6,743,347 B2Granted
Bearing manufacturing method for compressor
AssigneeLG Electronics Inc.
InventorChan Hwa Jeong
Life of this patent
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Abstract
A bearing manufacturing method for a compressor is disclosed. Since an oxide-coated layer is formed at the surface of the bearing and electrolized in a tiomolybedenic acid ammonium aqueous solution so that the molybedene emulsion can be infiltrated in the fine pores of the oxide-coated layer. Accordingly, the abrasion resistance of the bearing can be increased while the friction coefficient is remarkably reduced, and thus, a reliability of the compressor and an energy efficiency can be increased.
Claims4
A bearing manufacturing method for a compressor comprising the steps of:
- molding an exterior of a bearing by using an aluminum (Al) material;
- forming an oxide-coated layer on the surface of the bearing member by an electrolyte solution selected from the group consisting of sulfuric acid (H2SO4) and oxalic acid, wherein said electrolyte solution is set as a cathode, and a material to be coated is set as an anode, to which electric current is provided to generate an oxide-coated layer on the surface of the material after the exterior of the bearing is completed;
- and
- electrolizing the bearing in ammonium thiomolybdate and infiltrating a molybedene emulsion into the oxide-coated layer of the bearing.
1 more element
Dependencies are inferred from the claim text.