摘要:
Provided is a refrigerating machine oil composition, which is to be used for a refrigerant including a mixture of an unsaturated fluorinated hydrocarbon compound, a saturated fluorinated hydrocarbon compound and CO 2 , contains a base oil which includes at least one selected from a polyoxyalkylene glycol, a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol or a monoether thereof and a polyvinyl ether, and a polyol ester and has a kinematic viscosity at 100°C of 2 mm 2 /s or more and 50 mm 2 /s or less and a hydroxyl value of 5 mgKOH/g or less, is able to be used for a refrigerating machine system using a refrigerant having a low global warming potential and usable especially for a car air conditioner or the like and including a mixture of an unsaturated fluorinated hydrocarbon compound, a saturated fluorinated hydrocarbon compound and CO 2 , and exhibits not only excellent compatibility with the refrigerant but also excellent stability.
摘要:
The present invention provides a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil that comprises an ester of a polyhydric alcohol and a fatty acid, an epoxy compound, and a phosphorus compound, and a fluoropropene refrigerant, wherein the polyhydric alcohol constituting the ester comprises pentaerythritol and dipentaerythritol, the fatty acid constituting the ester comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the epoxy compound and the phosphorus compound satisfy a condition represented by the following formula (1). [Formula 1] 0.10 ‰¦ N E M E ‹ W E N P M P ‹ W P ‰¦ 1.50
摘要翻译:本发明提供了一种制冷机用工作流体组合物,其特征在于,具备含有多元醇和脂肪酸的酯,环氧化合物,磷化合物和氟丙烯制冷剂的制冷机油,其中,构成 酯包括季戊四醇和二季戊四醇,构成酯的脂肪酸包括选自碳原子数为4〜9的脂肪酸中的至少一种,环氧化合物和磷化合物满足下述式(1)所示的条件。 [公式1] 0.10‰| N E M E
摘要:
The invention provides a grease composition containing a base oil, a thickener, and an anti-flaking additive such as a compound represented by, for example, formula (1-1), which grease composition can prevent the white layer flaking of the rolling bearings. (In the formula, R1 and R4 are each independently a straight-chain or branched alkyl or alkenyl group having 1 to 20 carbon atoms.)