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A kind of lubricating paste and preparation method thereof

A technology of lubricating paste and polyoxymethylene, applied in the field of lubricants, can solve the problems of weak penetration, poor thermal conductivity, and insufficiently low friction coefficient, and achieve good anti-friction performance, high load-carrying capacity, and excellent corrosion resistance. Effect

Active Publication Date: 2018-03-09
项才益
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many kinds of lubricating pastes, but some have poor thermal conductivity, some have insufficient friction coefficient, and some have weak penetration ability, which cannot meet people's requirements for lubricating pastes at the same time.

Method used

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  • A kind of lubricating paste and preparation method thereof

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preparation example Construction

[0021] The present invention also includes the preparation method of lubricating paste, comprises the following steps:

[0022] ① Preparation of modified polyoxymethylene powder: in parts by weight, 100 parts of polyoxymethylene, 0.05-0.08 parts of 2,6-di-tert-butyl-4-methylphenol, 0.5-1 part of carbamoyl urea, calcium carbonate Add 0.5~0.8 parts, 5~10 parts of graphite and 5~15 parts of molybdenum disulfide into a high-speed mixer for mixing, and then use a vented twin-screw extruder at a screw speed of 100~150 rpm and a barrel temperature of 190~ Melt and knead at 230°C, extrude and granulate, and pulverize with a pulverizer to obtain modified polyoxymethylene powder with a particle size of 1-5 μm;

[0023] ② Preparation of lubricating paste: in parts by weight, 15-25 parts of white oil, 4-8 parts of ethylene glycol ethyl ether acetate, 3-6 parts of pentaerythritol stearate, 8-12 parts of lanolin, ethylene glycol 10~15 parts, 5~8 parts of ultra-high molecular weight polyeth...

Embodiment 1

[0028] A lubricating paste, in parts by weight, consists of the following components: 3 parts of aluminum hydroxide, 2 parts of magnesium oxide, 15 parts of white oil, 5 parts of melamine, 4 parts of ethylene glycol ethyl ether acetate, 3 parts of pentaerythritol stearate 8 parts of lanolin, 10 parts of ethylene glycol, 5 parts of ultra-high molecular weight polyethylene fiber, 15 parts of silicone oil and 20 parts of modified polyoxymethylene powder;

[0029] The modified polyoxymethylene powder is obtained according to the following method: in parts by weight, 100 parts of polyoxymethylene, 0.05 parts of 2,6-di-tert-butyl-4-methylphenol, 0.5 parts of carbamoyl urea, and 0.5 parts of calcium carbonate 5 parts, 5 parts of graphite and 5 parts of molybdenum disulfide are mixed in a high-speed mixer, and then melted and mixed with a vented twin-screw extruder at a screw speed of 100 rpm and a barrel temperature of 190 ° C, extruded and granulated After that, it was pulverized wi...

Embodiment 2

[0031] A lubricating paste, in parts by weight, consists of the following components: 6 parts of aluminum hydroxide, 5 parts of magnesium oxide, 25 parts of white oil, 8 parts of melamine, 8 parts of ethylene glycol ether acetate, 6 parts of pentaerythritol stearate 12 parts of lanolin, 15 parts of ethylene glycol, 8 parts of ultra-high molecular weight polyethylene fiber, 20 parts of silicone oil and 25 parts of modified polyoxymethylene powder;

[0032]The modified polyoxymethylene powder is obtained according to the following method: in parts by weight, 100 parts of polyoxymethylene, 0.08 parts of 2,6-di-tert-butyl-4-methylphenol, 1 part of carbamoyl urea, and 0.8 parts of calcium carbonate 10 parts, 10 parts of graphite and 15 parts of molybdenum disulfide are mixed in a high-speed mixer, and then melted and mixed with a vented twin-screw extruder at a screw speed of 150 rpm and a barrel temperature of 230 ° C, extruded and granulated After that, it was pulverized with a p...

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Abstract

The invention discloses a lubricating paste and a preparation method of same. The lubricating paste is composed of following raw materials, by weight, 3-6 parts of aluminum hydroxide, 2-5 parts of magnesium oxide, 15-25 parts of white oil, 5-8 parts of melamine, 4-8 parts of ethylene glycol monoethyl ether acetate, 3-6 parts of pentaerythritol stearate, 8-12 parts of wool fat, 10-15 parts of ethylene glycol, 5-8 parts of ultrahigh molecular weight polyethylene fiber, 15-20 parts of silicone oil and 20-25 parts of modified polyformaldehyde powder. The lubricating paste is high in bearing capability, is low in friction coefficient, is vibration-resistant and anti-impact and has permeability, is good in friction reducing performance, can effectively prevent machine from being damaged, is excellent in corrosion resistance and anti-rust performance, can absorb large quantity of heat at a high temperature and ensures normal operation on a device in severe environments.

Description

technical field [0001] The invention relates to the technical field of lubricants, in particular to a lubricating paste and a preparation method thereof. Background technique [0002] Lubricant is a lubricating medium used to reduce frictional resistance and slow down wear, and it can also cool, clean and prevent pollution of friction pairs. With the continuous development of mechanization, people have higher and higher requirements for the service life of machinery. In order to meet the miniaturization and longevity of mechanical equipment, people also put forward higher requirements for the friction performance and wear resistance of lubricating paste. At present, there are various types of lubricating pastes, but some have poor thermal conductivity, some have insufficiently low coefficient of friction, and some have weak penetrating ability, which cannot meet people's requirements for lubricating pastes at the same time. Contents of the invention [0003] To solve the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/12
Inventor 项才益
Owner 项才益
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