GREASE COMPOSITION FOR LUBRICATION BETWEEN METAL AND RESIN

• Main Authors: ASAI YUSUKE, TSUNA MOTOJIRO, YAMAMOTO HIROTAKA
• Format: Patent
• Language: English; Japanese
• Published: 07.10.2022
• Subjects: BASIC ELECTRIC ELEMENTS; BEARINGS; BLASTING; CHEMISTRY; ELECTRIC SWITCHES; ELECTRICITY; ELEMENTS OR CRANKSHAFT MECHANISMS; EMERGENCY PROTECTIVE DEVICES; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; FUELS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; LUBRICANTS; LUBRICATING COMPOSITIONS; MECHANICAL ENGINEERING; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; RELAYS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SELECTORS; SHAFTS; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THERMAL INSULATION IN GENERAL; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION; WEAPONS

To provide a grease composition, a resin sliding member, and a sliding member between a resin and a metal, wherein the grease composition has excellent lubricity between the resin and the metal, and the resin sliding member and the sliding member between the resin and the metal can suppress friction and wear and can improve operability of products, and can achieve longer product life by applying the grease composition.SOLUTION: A grease composition G for resin lubrication applied to a resin sliding surfaces comprises: a fluorinated base oil (kinematic viscosity at 40°C of 300 mm2/s or more) and a synthetic hydrocarbon oil as a base oil; a fluorinated thickener and a lithium soap thickener or a lithium composite soap thickener as a thickener; a fluoro-based surfactant as an additive; and an extreme pressure additive, wherein the resin sliding member (slide switch 101) has a resin sliding surface to which the grease composition G is applied.SELECTED DRAWING: Figure 1 【課題】樹脂－金属間の潤滑性に優れるグリース組成物、並びに該グリース組成物の適用により摩擦・摩耗を抑制し、製品の操作性向上と長寿命化を実現できる樹脂摺動部材及び樹脂・金属間摺動部材を提供すること。【解決手段】樹脂製の摺動面に適用される樹脂潤滑用グリース組成物であって、基油としてフッ素系基油（４０℃における動粘度が３００ｍｍ２／ｓ以上）及び合成炭化水素油と、増ちょう剤としてフッ素系増ちょう剤とリチウム石鹸増ちょう剤又はリチウム複合石鹸増ちょう剤と、添加剤としてフッ素系界面活性剤と、極圧添加剤とを含有してなる樹脂潤滑用グリース組成物Ｇ、及び該グリース組成物Ｇが適用された樹脂製の摺動面を有する樹脂摺動部材（スライドスイッチ１０１）。【選択図】図１