Fireproof door speed reducer lubricating grease composition and preparation method thereof
A technology of grease composition and reducer, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of insufficient adhesion ability, insufficient noise reduction ability, noise increase, etc., achieve good noise suppression effect and reduce failure rate , the effect of prolonging the service life
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Embodiment 1
[0037] A preparation method of a fire door reducer grease composition, comprising the steps of:
[0038] 1) Add 135kg of 250N into the reaction kettle, stir and heat to 150±5°C, add 15kg of binary ethylene propylene rubber with a Mooney viscosity of 30 cut into fine pieces, stir at constant temperature for 8±1h, and then add 654kg of 100°C kinematic viscosity 2400mm 2 / s polyisobutylene, heat up to 160±5℃, then add 60kg of specific surface area 200m 2 Hydrophobic fumed silica and 60kg specific surface area 300m 2 Hydrophilic fumed silica, stirred at constant temperature for 60 minutes.
[0039] 2) Cool down to 80±5°C, add 5kg of T706, 1kg of T105, 5kg of octylbutyldiphenylamine, 30kg of gear oil compound additive LZ5060, 25kg of molybdenum disulfide, 10kg of colloidal graphite, and mix and stir for 30 minutes , and then discharged into the bucket.
[0040] 3) Cool naturally to room temperature and grind three times with a three-roller mill to obtain the finished grease com...
Embodiment 2
[0042] A preparation method of a fire door reducer grease composition, comprising the steps of:
[0043] 1) Add 120kg of hydroisomerized Type III oil 150N into the reactor, stir and heat to 150±5°C, add 12kg of binary ethylene propylene rubber with a Mooney viscosity of 40 cut into fine pieces, and stir at constant temperature for 8±1h , and then add 640kg of 100 ℃ kinematic viscosity 4200mm 2 / s polyisobutylene, heat up to 160±5℃, then add 70kg of specific surface area 200m 2 Hydrophobic fumed silica and 45kg specific surface area 250m 2 Hydrophilic fumed silica, stirred at constant temperature for 60 minutes.
[0044]2) Cool down to 80±5°C, add 5kg of T561, 2kg of T105, 2kg of octylbutyldiphenylamine, 5kg of T531, 50kg of gear oil compound additive RC9410, 10kg of molybdenum disulfide, 40kg of colloidal graphite , mixed and stirred for 30 minutes, and then discharged into the barrel.
[0045] 3) Cool naturally to room temperature and grind three times with a three-roller...
Embodiment 3
[0047] A preparation method of a fire door reducer grease composition, comprising the steps of:
[0048] 1) Add 150kg of 250N into the reaction kettle, stir and heat to 150±5°C, add 20kg of binary ethylene propylene rubber with a Mooney viscosity of 17 cut into fine pieces, stir at constant temperature for 8±1h, and then add 594kg of 100°C kinematic viscosity 1300mm 2 / s polyisobutylene, heat up to 160±5°C, then add 50kg of polyisobutylene with a specific surface area of 300m 2 Hydrophobic fumed silica and 80kg specific surface area 150m 2 Hydrophilic fumed silica, stirred at constant temperature for 60 minutes.
[0049] 2) Cool down to 80±5°C, add 3kg of T706, 1kg of T105, 2kg of T106, 10kg of diisooctyldiphenylamine, 55kg of gear oil compound additive LZ5060, and 35kg of molybdenum disulfide in sequence, and mix and stir for 30 minutes. Then discharge into the bucket.
[0050] 3) Cool naturally to room temperature and grind three times with a three-roller mill to obtai...
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