A kind of noise reduction gear grease composition and preparation method thereof
A technology of gear grease and composition, which is applied in the field of noise-reducing gear grease composition and its preparation, and can solve problems such as high noise, low service life, and insufficient lubricating oil function
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Embodiment 1
[0009] The implementation method of the noise reduction gear grease composition of the present invention has the following steps:
[0010] Table 1
[0011] Material composition Specific material composition Metering formula (parts by weight) A Polyalphaolefin, 100cts 100 B Polyisobutylene 650cts 5 C EPDM 8 D Lithium 12-hydroxystearate 10 E Di-tert-butyl-p-cresol 1.5 F Molybdenum dithiophosphate 2
[0012] Add 60 parts by weight of polyalphaolefin, 5 parts by weight of polyisobutylene and 8 parts by weight of binary ethylene propylene rubber into the reaction kettle at the same time, raise the temperature to 100°C while stirring, and keep stirring at a constant temperature of 100°C for 2 hours. The speed of the stirrer is 500~3000rpm, after the binary ethylene propylene rubber is completely melted in the base oil, then add 10 parts by weight of the thickener 12-hydroxylithium stearate, continue stirring, stop heating af...
Embodiment 2
[0014] The implementation method of the noise reduction gear grease composition of the present invention has the following steps:
[0015] Table 2
[0016] Material composition Specific material composition Metering formula (parts by weight) A polyalphaolefin, 100cts 60 B Trimethylolpropane 80cts 40 C EPDM 6 D Lithium 12-hydroxystearate 10 E Dialkyldiphenylamine 1 F Zinc dialkyldithiocarbamate 1
[0017] Add 60 parts by weight of polyalphaolefin and 6 parts by weight of binary ethylene propylene rubber into the reaction kettle at the same time, raise the temperature to 100°C while stirring, and keep stirring at a constant temperature of 100°C for 2 hours. The speed of the stirrer is 500~3000rpm. The ethylene propylene rubber is completely melted in the base oil, then add 10 parts by weight of thickener 12-hydroxy lithium stearate, continue to stir, stop heating after raising the temperature to 210°C, add 40 parts by we...
Embodiment 3
[0019] The present invention produces the lubricating grease composition through above-mentioned secondary example, and its detection result is as shown in table 3 and table 4.
[0020] The experimental conditions in Table 4 are: the power supply voltage of the drive motor of the reduction gearbox is 24V, and the speed is 4500rpm; the casing of the reduction gearbox is made of nylon material, the gear is polyoxymethylene POM, straight teeth, four-stage reduction, and the output speed of the gear is 260rpm. Test the noise at the level of the gearbox and 10cm away from the gearbox.
[0021] table 3
[0022] name Implementation one Implementation two experiment method Cone penetration (1 / 10mm) 290 286 GB / T269-1991 NLGI consistency grade 2 2 DIN 51818-1981 Evaporation loss (100℃, 24h) 0.5 0.6 SH / T0189-1992 Dropping point (°C) 189 194 GB / T3498-2008 Corrosion (99℃, 24h) 1a 1a GB5096-1985
[0023] Table 4
[0024] ...
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