Marine propeller lubricating grease and preparation method thereof

A technology for marine propellers and lubricating greases, applied in the field of special greases, can solve the problems of easy corrosion of propeller bearings and threads by water, long maintenance period of propellers, etc., and achieve good anti-emulsification performance, long lubrication performance, and wide temperature range. Effect

Inactive Publication Date: 2017-05-10
XINXIANG HENGXING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inner cavity, bearings and threads of the propeller are easily corroded by water, and the maintenance cycle of the propeller is relatively long. In order to ensure the long-term normal use of the propeller, it is necessary to design a professional marine propeller grease

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The above-mentioned contents of the present invention are described in further detail below through the embodiments, but this should not be interpreted as the scope of the above-mentioned themes of the present invention being limited to the following embodiments, and all technologies realized based on the above-mentioned contents of the present invention all belong to the scope of the present invention.

[0011] The marine propeller grease of the present invention is specially used in the underwater working part of the propeller on board, and plays the role of protection and lubrication to the propeller. Now take 2000 kilograms of marine propeller grease as an example to specify as follows:

[0012] 1. Add 800 kg of No. 150 national standard mechanical oil into the saponification kettle, stir and heat up to 80°C, add 250 kg of stearic acid, continue to heat up to 90°C under stirring conditions to dissolve the stearic acid, and stop heating Then add the lithium hydroxide ...

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Abstract

The invention discloses marine propeller lubricating grease and a preparation method thereof, and belongs to the technical field of special lubricating grease. The technical scheme mainly includes that the marine propeller lubricating grease is prepared from, by weight, 55-80 parts of base oil, 13-38 parts of thickening agents, 3-5 parts of additives and 1-2 parts of fillers. The lubricating grease is prepared from high-quality national standard base oil and lithium-calcium mixed soap, the national standard base oil has excellent corrosion resistance and extreme pressure resistance, namely good emulsion resistance, so that the lubricating grease has low-temperature torque lubricating property and long service life, and the mixed soap can ensure good hydrophobic property and wide temperature use range of the lubricating grease, so that the lubricating grease is particularly suitable for underwater propellers.

Description

technical field [0001] The invention belongs to the technical field of special lubricating grease, and in particular relates to a marine propeller lubricating grease and a preparation method thereof. Background technique [0002] Most marine greases are general-purpose lithium-based greases, but general-purpose lithium-based greases cannot meet the requirements for use in special parts. The propeller is a relatively special part. Usually, the propeller works at a depth of several meters to tens of meters underwater. The water pressure is very high, and fresh water and sea water are very corrosive to metals. The lubricating grease must have a strong anti-corrosion performance on the inner cavity of the bearing and the propeller, so as to ensure the long-term normal operation of the propeller. The range of activities of the ship is very wide, and ships often pass by in two-stage cold places, so the propeller grease must still have good lubricating performance at -30°C. In or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/06C10M169/02C10N50/10C10N30/06
CPCC10M169/02C10M169/06C10M2203/003C10M2207/003C10M2207/1225C10M2207/16C10M2215/02C10M2215/064C10M2215/223C10M2219/044C10N2030/06C10N2050/10C10N2010/02C10N2010/04
Inventor 周忠太张守鹏宋尚珍张子英姚芳园时红敏齐瑞琴
Owner XINXIANG HENGXING TECH CO LTD
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