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High-speed chain lubricating grease and preparation method thereof

A lubricating grease and chain technology, which is applied in the field of high-speed chain lubricating grease and its preparation, can solve the problems of thinning and loss, short chain replacement cycle, and shortened life of itself, so as to achieve resistance to impact load and vibration load, good economy and Market value, effect of reducing coefficient of friction

Active Publication Date: 2013-03-13
武汉博达特种润滑技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When these commonly used chain anti-rust greases are used on high-speed racing car chains, there are mainly the following disadvantages: 1), a large number of scratches and wear spots appear on the chain, 2), the chain is overstretched and falls off, 3), the chain instantly broken, 4), chain life is short
[0003] These problems are mainly due to the following reasons: 1) The base oil used in chain antirust grease is ordinary mineral oil, which has the following deficiencies: a, low viscosity index, low high temperature viscosity, used on high-speed chains, due to friction As the temperature rises, a continuous oil film cannot be formed to protect the chain
b. At high temperature, the evaporation loss is large, and it is easy to be oxidized and deteriorated, so that its own life is shortened
2) The thickener used in chain anti-rust grease is paraffin or ozokerite and other thickeners with low dripping points. When used on high-temperature chains, it is easy to become thinner and lost or be thrown off, resulting in dryness of the chain and the ring gear. friction
3) The base oil used in chain anti-rust grease has low viscosity, which makes its adhesion on the chain poor, and it is easy to be thrown off by the centrifugal force of the high-speed running chain and also easily washed away by rainwater.
4) The anti-rust grease of the chain has poor anti-friction performance, and the friction force is large during the operation of the chain, which causes the chain to heat itself
However, when used on a high-speed chain, the chain is overstretched in a short period of time, causing the chain to fall off or break
6) The chain anti-rust grease is only suitable for the lubrication of ordinary motorcycle or bicycle chains due to its compatible components. It is used on high-speed racing car chains, resulting in a short chain replacement cycle. Even a few hundred kilometers will fall off, resulting in an increase in the cost of the car, and poor overall economy will also affect the performance of the driver

Method used

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  • High-speed chain lubricating grease and preparation method thereof
  • High-speed chain lubricating grease and preparation method thereof
  • High-speed chain lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1) 577 kg of hydroisomerization 500SN, 50 kg of di-octyl sebacate (V40=8.52mm 2 / s), 100 kilograms of polyisobutylene PB1300 (tackifier), 20 kilograms of polymethacrylate 8-450 (tackifier), 100 kilograms of No. 85 microcrystalline wax (thickener), 50 kilograms of polyethylene wax ( thickener) into the reaction kettle together, heat and stir to raise the temperature to 100°C, and stir at constant temperature for 45 minutes to melt the microcrystalline wax and polyethylene wax, then raise the temperature to 120°C, vacuumize to -0.08MPA, and maintain constant temperature and constant vacuum for dehydration 2 hours.

[0034] 2) Add 3 kg of phenyl-α-naphthylamine (T531), 2 kg of 2,6-di-tert-butyl-p-cresol (T501), 1 kg of benzotriazole (T706), and 20 kg of oily potassium borate in sequence (T361), 50 kg of polytetrafluoroethylene superfine powder, stirring and mixing for 20 minutes to melt the solid additive, then add 20 kg of barium nonylnaphthalene sulfonate (T705), 7.5 kg...

Embodiment 2

[0037] 1) 300 kg of hydroisomerization 500SN, 225 kg of bright stock 150BS, 50 kg of trimethylolpropane fatty acid ester (V40=67.2mm 2 / s), 50 kg polymethacrylate 8-450 (tackifier), 100 kg ethylene propylene copolymer oil (T612C) (tackifier), 160 kg No. 80 microcrystalline wax (thickener) together Add it into the reaction kettle, heat and stir to raise the temperature to 95°C, and stir at constant temperature for 30 minutes to melt the microcrystalline wax, then raise the temperature to 115°C, vacuumize to -0.08MPa, and keep constant temperature and constant vacuum for 1.5 hours to dehydrate.

[0038] 2) Add 3 kg of phenyl-α-naphthylamine (T531), 2 kg of 2,6-di-tert-butyl-p-cresol (T501), 20 kg of oily potassium borate (T361), 30 kg of melamine cyanurate, 20 kg of polytetrafluoroethylene superfine powder, stirred and mixed for 15 minutes to melt the solid additive, then added 0.5 kg of benzotriazole derivatives (T551), 30 kg of barium dinonylnaphthalenesulfonate (T705), 10 kg ...

Embodiment 3

[0041] 1) 120 kilograms of hydroisomerization 500SN, 455 kilograms of bright stock 150BS, 50 kilograms of trimethylolpropane fatty acid ester (V40=19.4mm 2 / s), 20 kilograms of polymethacrylate 8-450 (tackifier), 60 kilograms of polyisobutylene PB2400 (tackifier), 90 kilograms of No. 90 microcrystalline wax (thickener), 60 kilograms of polyethylene wax ( thickener) into the reaction kettle together, heat and stir to raise the temperature to 105°C, and stir at constant temperature for 60 minutes to melt the microcrystalline wax and polyethylene wax, then raise the temperature to 125°C, vacuumize to -0.08MPa, and maintain constant temperature and constant vacuum for dehydration 3 hours.

[0042] 2) Add 5 kilograms of alkyl diphenylamine (T534), 30 kilograms of oily potassium borate (T361), 50 kilograms of melamine cyanurate, and 30 kilograms of polytetrafluoroethylene superfine powder in sequence, stir and mix for 15 minutes to melt the solid additive, and then Add 0.5 kg of th...

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Abstract

The invention provides a high-speed chain lubricating grease, comprising the following components by weight: 28.8-90.1% of base oil, 5-25% of thickening agent, 0.1-1.0% of antioxidant, 0.5-5% of anti-wear reagent at extreme pressure, 0.3-3% of an anti-rust agent, 0.02-0.2% of a metal passivating agent, 2-20% of a solid lubricant and 2-20% of a tackifier. The invention also provides a preparation method of the high-speed chain lubricating grease. The high-speed chain grease provided by the invention is suitable for high-speed motorcycle chain, automobile engine chain and industrial chain. The high-speed chain lubricating grease provided by the invention adopts compound of the anti-wear reagent at extreme pressure and the solid lubricant, has excellent rust resistance, high temperature resistance, antifriction performance, water resistance, antiwear performance at extreme pressure and long-term anti-wear effect maintenance, and can be used in chains of extremely harsh speed racing car (motorcycle and automobile engine); and the chain has elongation less than 2 mm, and service life reaching up to 10000 kilometers.

Description

technical field [0001] The invention relates to a chain lubricating grease composition and a preparation method thereof, in particular to a high-speed chain lubricating grease and a preparation method thereof. Background technique [0002] At present, high-speed racing car chains are lubricated by dipping ordinary chain antirust grease, which is composed of mineral base oil and ceresin thickener, and is compounded by adding antirust agents and antioxidants. When these commonly used chain anti-rust greases are used on high-speed racing car chains, there are mainly the following disadvantages: 1), a large number of scratches and wear spots appear on the chain, 2), the chain is overstretched and falls off, 3), the chain instantly Fracture, 4), chain life is short. [0003] These problems are mainly due to the following reasons: 1) The base oil used in chain antirust grease is ordinary mineral oil, which has the following deficiencies: a, low viscosity index, low high temperatu...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10M177/00C10N40/04
Inventor 曹杰
Owner 武汉博达特种润滑技术有限公司
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