▎ 摘　　要

NOVELTY - Environmentally friendly nano-graphene ORT exposed gear oil comprises 45-55 pts. wt. polyester, 35-44 pts. wt. polyalphaolefins (PAO 300), 9-12 pts. wt. cyclohexanedicarboxylate, 14-25 pts. wt. high performance three component lithium complex grease, 5-100 pts. wt. nano graphene dispersion modified by lipophilic surface, 5-9 pts. wt. polyisobutylene (PIB2400), 1.2-2 pts. wt. aromatic amine antioxidants, 3-4.2 pts. wt. extreme pressure anti-wear agent, 0.8-1.5 pts. wt. organic molybdenum friction improver, 0.75-1.2 pts. wt. metal deactivator, 0.4-1 pts. wt. rust inhibitor, 0.45-0.8 pts. wt. anti-emulsifier, 5-8 pts. wt. solid additive and 0.05-0.2 pts. wt. mold inhibitors, where the oleophilic surface-modified nano-graphene dispersion is specifically obtained by uniformly dispersing nano-graphene having a thickness of 3-5 nm in cyclohexanedicarboxylate,and performing ultrasonic dispersion treatment. USE - Used as environmentally friendly nano-graphene ORT exposed gear oil. ADVANTAGE - The gear oil: has good comprehensive performance, is environment-friendly in the field to prevent environmental pollution and biodegradable, and mainly suitable for outdoor large-scale mine machine abnormal harsh working condition, and improves extreme pressure anti-wear protection of the ORT open gear set and the open gear oil production method for long-life use. DETAILED DESCRIPTION - Environmentally friendly nano-graphene ORT exposed gear oil comprises 45-55 pts. wt. polyester, 35-44 pts. wt. polyalphaolefins (PAO 300), 9-12 pts. wt. cyclohexanedicarboxylate, 14-25 pts. wt. high performance three component lithium complex grease, 5-100 pts. wt. nano graphene dispersion modified by lipophilic surface, 5-9 pts. wt. polyisobutylene (PIB2400), 1.2-2 pts. wt. aromatic amine antioxidants, 3-4.2 pts. wt. extreme pressure anti-wear agent, 0.8-1.5 pts. wt. organic molybdenum friction improver, 0.75-1.2 pts. wt. metal deactivator, 0.4-1 pts. wt. rust inhibitor, 0.45-0.8 pts. wt. anti-emulsifier, 5-8 pts. wt. solid additive and 0.05-0.2 pts. wt. mold inhibitors, where the oleophilic surface-modified nano-graphene dispersion is specifically obtained by uniformly dispersing nano-graphene having a thickness of 3-5 nm in cyclohexanedicarboxylate, performing ultrasonic dispersion treatment, where the suspension does not precipitate within 3000 hours and the ratio of the nano-graphene to the cyclohexanedicarboxylate is 1:10000. The arylamine antioxidant is a mixture of dialkyldiphenylamine, N-phenyl- alpha -aniline, and/or sulfurized alkylphenol. The extreme pressure anti-wear agent is a mixture of sulfurized isobutylene (T321) and thiadiazole dimer. The mixing ratio of the sulfurized isobutylene (T321) to the thiadiazole dimer is 3:1. The organic molybdenum friction modifier is molybdenum dialkyldithiocarbamate (MODTC) and/or molybdate. The metal deactivator is a thiadiazole thiol derivative. The rust inhibitor comprises petroleum sulfonium sulfonate, dodecenyl succinic acid, and/or isodecyl phenoxy acetic acid. The anti-emulsifier is ethylene glycol ester or amine and/or ethylene oxide condensate. The solid additive is fine molybdenum disulfide powder. The antifungal agent is a mixture of a propylene oxide-containing amine compound, o-phenylphenol compound, and/or specific aniline-containing compound. An INDEPENDENT CLAIM is also included for preparing an environmentally friendly nano-graphene ORT exposed gear oil comprising (1) proportionally driving the polyester and PAO300 into the blending kettle for stirring, and raising the temperature to 55-65 degrees C, (2) proportionally mixing modified oleophilic surface-modified nano-graphene dispersion, extreme pressure antiwear agent, organic molybdenum friction modifier, aromatic amine antioxidant, metal deactivator, rust inhibitor, anti-emulsifier, and anti-mold agent, sequentially adding to the cyclohexane dicarboxylate mother liquor, and stirring uniformly to obtain a mixture A, and (3) adding the mixed liquid A to the blending kettle, then sequentially adding the polyisobutylene, finally adding the solid additive with a high-performance three-component lithium complex grease, opening the circulating shear in the blending kettle, and stirring the mixture for 40-60 minutes.