| 摘要 |
PROBLEM TO BE SOLVED: To obtain an oil for a refrigerator using HFC-32 as a refrigerant, excellent in corrosion-resistance of the interior of a compressor and cleanliness in the compressor, especially capable of keeping the cleanliness for a long term in the interior of the compressor, and capable of providing a high reliability. SOLUTION: This lubricant composition for a refrigerator using an HFC- based refrigerant containing HFC-32 is obtained by using an ester composed of a di or more polyhydric alcohol as an alcoholic component and a monobasic fatty acid singly or as a mixture as a base oil, and blending additives comprising (1) 0.01-1.0% esters of orthophosphoric acid, (2) 0.01-1.0% alkylphosphorothionates and/or arylphosphorothionates, and (3) 0.01-1.0% epoxy compounds, with the base oil. |
