Method for preparing special lubricating grease and thickening agent for cylinder of electric tool

A technology for power tools and greases, applied in thickeners, lubricating compositions, additives, etc., can solve problems such as product performance to be improved, and achieve excellent oxidative stability and mechanical stability, excellent low friction, and flame resistance. Excellent effect

Active Publication Date: 2009-12-09
杭州得润宝油脂股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few domestic researches on electric tool cylinder grease, and there are not many manufacturers, and the product performance needs to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A kind of preparation method of above-mentioned thickening agent, described thickening agent is a kind of complex lithium calcium, and it is base oil and C 12 ~C 24 At least one monobasic acid in the fatty acid or hydroxy fatty acid is mixed and heated to dissolve, adding Ca(OH) 2 and some LiOH·H 2 O saponification, slowly heat up to 100-170°C, preferably 120-150°C, add C 2 ~C 12 Fatty dibasic acid, continue to heat up to 120 ~ 150 ℃, add the remaining LiOH·H 2 O, continue to react, then heat up to 200-220°C for refining, add additives and mix and stir for a period of time when cooled to 80-110°C, then cool out of the kettle, homogenize, grind, and pack.

[0028]A kind of preparation method of above-mentioned thickening agent, described thickening agent is a kind of urea grease, and it is that base oil and 4,4'-diphenylmethane diisocyanate or 2,4-tolyl diisocyanate Mix and heat at least one of the isocyanates to dissolve, then add the alkylamine dissolved in base o...

Embodiment 1

[0034] Mix 53.0g of 12-hydroxystearic acid with 97g at 40°C with a viscosity of 430-500mm 2 / s naphthenic mineral oil, 305g 40℃ viscosity is 90~100mm 2 / s of paraffin-based mineral oil mixed, heated and stirred to 90°C to dissolve, add 9.1g of lithium hydroxide monohydrate dissolved in 1.3 to 1.5 times of water, slowly raise the temperature to 130 to 140°C for reaction, then add 17.6g of sebacic acid, and continue to heat up to 130-140°C, then add 9.2g of lithium hydroxide monohydrate dissolved in 1.3-1.5 times of water for reaction, and finally raise the temperature to 210°C for high-temperature refining, then cool to 80-110°C and add 39.1g of methyl silicone oil, 9.8g of vulcanization Olefin cottonseed oil, 9.8g zinc dialkyldithiophosphate, 2.4g diphenylamine antioxidant, 14.6g borate extreme pressure antiwear agent, 48.8g melamine cyanurate, mix well, cool out of the kettle, quality, grinding, packaging, finished product.

Embodiment 2

[0036] Combine 44.1g of 12-hydroxystearic acid with 262.0g of 40°C with a viscosity of 130-170mm 2 / s of synthetic hydrocarbons and synthetic oils were mixed, heated and stirred until dissolved at 90°C, and a mixture of 1.23g of calcium hydroxide and 5.2g of lithium hydroxide monohydrate dissolved in 1.3 times of water was added, and the temperature was slowly raised to 130-140°C for reaction, and then added 14.8g of sebacic acid, continue to heat up to 130-140°C, then add 6.4g of lithium hydroxide monohydrate (1.3 times dissolved in water) for reaction, finally heat up to 205-215°C for high temperature refining, and then cool to 90°C and add 26.7g Methyl silicone oil, 6.7g sulfurized olefin cottonseed oil, 6.7g zinc dialkyldithiophosphate, 1.7g diphenylamine antioxidant, 10g borate extreme pressure antiwear agent, 33.3g melamine cyanurate, mix well , cooled out of the kettle, homogenized, ground, packaged, and finished.

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PUM

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Abstract

The invention relates to a method for preparing special lubricating grease and thickening agent for a cylinder of an electric tool. The lubricating grease and thickening agent mainly comprise the following components: a) base oil; b) at least one thickening agent of compound lithium, compound lithium calcium or carbamido grease, or composite thickening agent of any two of the three substances; c) silicon-containing anti-foaming agent; d) one or more extreme-pressure antiwear agents of borates or vulcanized whale oil substitute; e) one or more anilines antioxygens or dialkyldithiophosphates antioxygens; and f) tripolycyanamide urate; wherein the amount of the base oil in use accounts for 70-95% of the total weight of the lubricating grease, the thickening agent accounts for 5-30% of the total weight of the lubricating grease, the amount of the silicon-containing anti-foaming agent accounts for 5-10% of the total weight of the lubricating grease, the amount of the extreme-pressure antiwear agents accounts for 2-5% of the total weight of the lubricating grease, the amount of the antioxygens accounts for 1-5% of the total weight of the lubricating grease, and the amount of the tripolycyanamide urate accounts for 3-15% of the total weight of the lubricating grease. The lubricating grease, rubber and thermoplastic elastomer which are prepared using the components have good compatibility, excellent extreme-pressure wearability, foaming resistance, lubrication, flame resistance and noise lowering, and the like. The lubricating grease is suitable for the lubrication of the cylinders of various electric hammers and electric picks and in particular suitable for the lubrication and sealing of the cylinders of the electric hammers and electric picks which keeps on operating for a long time at a high speed.

Description

technical field [0001] The invention relates to a special lubricating grease composition for cylinders of electric tools, to be precise, a low-cost and high-performance special lubricating grease composition for cylinders of electric tools. Background technique [0002] Power tools can be divided into: power tools for metal cutting, power tools for sanding, power tools for assembly, power tools for construction roads, power tools for mining, power tools for railways, power tools for agriculture and animal husbandry, power tools for forestry and wood processing, and others There are nine types of electric tools, and BOSCH, an internationally renowned company, has achieved outstanding results in this area. my country's electric tool manufacturing industry has experienced decades of hard work, and has formed an export-oriented, supplemented by domestic sales. An industry that is valued in exports and people's daily life. In recent years, the annual output of electric tools in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/06C10M117/00C10M115/08C10M123/02C10M141/12C10M125/26C10M159/08C10M133/12C10M137/10C10M133/42C10M177/00C10N30/06C10N30/10C10N30/00
Inventor 李辉李元正
Owner 杭州得润宝油脂股份有限公司
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