Gear oil composition, gear oil and preparation method of gear oil

A technology of composition and gear oil, applied in the field of gears, can solve the problems of low quality of polyalphaolefin base oil, failure to meet high-end lubricating oil products, low purity of alpha-olefin, etc., and achieve good comprehensive performance and good shear stability The effect of the property and the simple preparation method

Inactive Publication Date: 2018-11-30
HUZHOU MAILONG MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there is also a production route of using different waxy raw materials to obtain α-olefins through thermal cracking. However, due to the low purity and high impurity content of the α-olefins obtained by cracking paraffin wax, the quality of the obtained poly-α-olefin base oil is low. Meet the needs of industrial production of high-end lubricant products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation of Hyperbranched Polyethylene

[0040] Add TaCl5 (72mg, 0.20mmol), cocatalyst EtAlCl2 hexane solution 0.2mL (1mol / L), selectivity improver AlCl3 (2.0mmol) And solvent chlorobenzene 10ml. Replace the atmosphere of the autoclave with nitrogen for three times, and vacuum once, heat to 45°C, continuously add ethylene at a pressure of 10MPa, stir at 45°C for 12 hours, then directly switch the ethylene atmosphere to hydrogen, and react under the hydrogen atmosphere until the hydrogenation is complete , vent the autoclave to normal pressure, and add a small amount of methanol to deactivate the catalyst. Add 40ml of chloroform to dilute the reaction product, filter the product and pass through a neutral alumina column or a silica gel column to remove catalyst residues, and distill off the solvent and ethylene oligomers at room temperature under vacuum to obtain 4.1g of oily hyperbranched polyethylene. The weight average molecular weight of the oily hyperbranched p...

Embodiment 2

[0044] Preparation of Hyperbranched Polyethylene

[0045] Add TaCl5 (72mg, 0.20mmol), cocatalyst EtAlCl2 hexane solution 0.2mL (1mol / L) and solvent chlorobenzene 10ml in 125mL glass autoclave liner equipped with polytetrafluoroethylene magnetic stirring bar. Replace the atmosphere of the autoclave with nitrogen three times, and evacuate once, heat to 30°C, continuously add ethylene at a pressure of 10MPa, stir at 30°C for 16h, then directly switch the ethylene atmosphere to hydrogen, and react under the hydrogen atmosphere until the hydrogenation is complete , vent the autoclave to normal pressure, and add a small amount of methanol to deactivate the catalyst. Add 40ml of chloroform to dilute the reaction product, filter the product and pass through a neutral alumina column or a silica gel column to remove catalyst residues, and distill off the solvent and ethylene oligomers at room temperature under vacuum to obtain 2.7g of oily hyperbranched polyethylene. The weight average...

Embodiment 3

[0049] Preparation of Hyperbranched Polyethylene

[0050] Add TaCl5 (72mg, 0.20mmol), cocatalyst Et3Al2Cl3 hexane solution 0.1mL (1mol / L) and solvent chlorobenzene 10ml in 125mL glass autoclave liner equipped with polytetrafluoroethylene magnetic stirring bar. Replace the atmosphere of the autoclave with nitrogen three times, and evacuate once, heat to 35°C, continuously add ethylene at a pressure of 12MPa, stir at 35°C for 10h, then directly switch the ethylene atmosphere to hydrogen, and react under the hydrogen atmosphere until the hydrogenation is complete , vent the autoclave to normal pressure, and add a small amount of methanol to deactivate the catalyst. Add 40ml of chloroform to dilute the reaction product, filter the product and pass through a neutral alumina column or a silica gel column to remove catalyst residues, and distill off the solvent and ethylene oligomers at room temperature under vacuum to obtain 3.2g of oily hyperbranched polyethylene. The weight avera...

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Abstract

The invention provides a gear oil composition, gear oil and a preparation method of the gear oil, wherein the gear oil composition comprises a high-branched polyethylene synthetic base oil and additives, wherein the weight average molecular weight of high-branched polyethylene is 280-20000, and the branched degree of the high-branched polyethylene is 0.15-0.5. The gear oil prepared by the gear oilcomposition provided by the embodiment of the invention has the advantages of excellent viscosity-temperature properties, wear resistance, thermal oxidation stability, good shear stability, good extrusion resistance, good foam resistance, good corrosion resistance, good rust resistance, and good comprehensive performance; and the preparation method is simple, the production cost is low, the performance indexes can meet application requirements, and the gear oil has wide application scope.

Description

technical field [0001] The invention relates to the technical field of gears, in particular to a titanium alloy gear and a preparation method thereof. Background technique [0002] Gear transmission is one of the most important transmission methods in mechanical transmission. The gear transmission motion and power are completed by the meshing of the tooth surfaces of the gears. During this period, friction will inevitably occur. In order to maintain the service life of the gear mechanism, the meshing tooth surfaces need to be lubricated with lubricating oil. , Lubricating oil forms an adsorption film and a reaction film on the tooth surface to reduce the friction coefficient and withstand external loads. Modern machines are developing towards high loads, which put forward more stringent requirements on the load-bearing capacity and service conditions of gears. To give full play to the bearing capacity of gears, reduce the possibility of gear failure, prolong the life of gea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M107/04C10N30/06C10N30/12C10N30/10C10N30/18C10N40/04
CPCC10M107/04C10M169/042C10M2205/0225C10N2030/06C10N2030/10C10N2030/12C10N2030/18C10N2040/04C10N2020/04C10N2020/02
Inventor 邱峰
Owner HUZHOU MAILONG MACHINERY CO LTD
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