Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Lubricating oil for high temperature resistant powder metallurgy oil bearing and preparation method thereof

A technology of lubricating oil and powder metallurgy for bearings, applied in the field of lubricating oil, can solve the problems of equipment maintenance, maintenance and service life damage, oxidative discoloration of lubricating oil evaporation loss, affecting the service life of equipment, etc., and achieve excellent anti-rust and anti-corrosion problems. , It is not easy to oxidize and deteriorate, and the effect of reducing the maintenance rate

Active Publication Date: 2021-08-03
洛阳精一新材料科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, after the common PAO oil products commonly used in the prior art are used for a long time above 150°C, the lubricating oil is prone to large evaporation loss and oxidative discoloration, resulting in a decrease in the lubricity of the equipment and a large wear of the bearing, which requires regular maintenance. Lubricating oil replenishment and overall replacement for oil-impregnated bearings
However, 1. It is cumbersome to replenish lubricating oil regularly, and the maintenance cost of equipment is high; 2. It is difficult to directly fill lubricating oil for some special parts; 3. When filling a lot of lubricating oil, the bearing itself is easy to absorb dust. Or there will be dripping phenomenon, which will pollute the product and affect the service life of the equipment
At the same time, when this ordinary PAO oil lubricating oil is overloaded at a high temperature for a long time, it will cause coking, which will bring great damage to the repair, maintenance and service life of household appliances and other equipment.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lubricating oil for high temperature resistant powder metallurgy oil bearing and preparation method thereof
  • Lubricating oil for high temperature resistant powder metallurgy oil bearing and preparation method thereof
  • Lubricating oil for high temperature resistant powder metallurgy oil bearing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A lubricating oil for high-temperature-resistant powder metallurgy oil-impregnated bearings, the formula of which is:

[0052] Based on the mass of base oil as 100 parts, where,

[0053] 41 parts of trimethylol propane ester;

[0054] 59 parts of trimellitate;

[0055] 2 parts of polymethacrylate;

[0056] 2 parts of diisooctyl diphenylamine;

[0057] 2 parts of high molecular weight phenol;

[0058] 0.5 part of benzotriazole;

[0059] 0.5 part of triphenyl phosphorothioate;

[0060] 0.01 parts of methyl silicone oil;

[0061] The specific production steps of a high-temperature-resistant powder metallurgy oil-impregnated bearing lubricating oil in this embodiment are as follows:

[0062] Step 1. According to the parts by weight, weigh 41 parts of trimethylolpropane ester and place it in the heating container, control the temperature in the heating container to continuously increase to 90 °C at a heating rate of 8 °C / min, and carry out the process at this temperat...

Embodiment 2

[0068] A lubricating oil for high-temperature-resistant powder metallurgy oil-impregnated bearings, the formula of which is:

[0069] Based on the mass of base oil as 100 parts, where,

[0070] 36 parts of trimethylol propane ester;

[0071] 64 parts of trimellitate;

[0072] 4 parts of polymethacrylate;

[0073] 2 parts of diisooctyl diphenylamine;

[0074] 2 parts of high molecular weight phenol;

[0075] 0.5 part of benzotriazole;

[0076] 0.5 part of triphenyl phosphorothioate;

[0077] 0.01 parts of methyl silicone oil;

[0078] The specific production steps of a high-temperature-resistant powder metallurgy oil-impregnated bearing lubricating oil in this embodiment are as follows:

[0079] Step 1. According to the parts by weight, weigh 36 parts of trimethylolpropane ester and place it in the heating container, control the temperature in the heating container to continuously increase to 80°C at a heating rate of 10°C / min, and carry out the process at this temperatu...

Embodiment 3

[0085] A lubricating oil for high-temperature-resistant powder metallurgy oil-impregnated bearings, the formula of which is:

[0086] Based on the mass of base oil as 100 parts, where,

[0087] 28 parts of trimethylol propane ester;

[0088] 72 parts of trimellitate;

[0089] 8 parts of polymethacrylate;

[0090] 2 parts of diisooctyl diphenylamine;

[0091] 2 parts of high molecular weight phenol;

[0092] 0.5 part of benzotriazole;

[0093] 0.5 part of triphenyl phosphorothioate;

[0094] 0.01 parts of methyl silicone oil;

[0095] The specific production steps of a high-temperature-resistant powder metallurgy oil-impregnated bearing lubricating oil in this embodiment are as follows:

[0096] Step 1. According to the parts by weight, weigh 28 parts of trimethylolpropane ester and place it in a heating container, control the temperature in the heating container to continuously increase to 85°C at a heating rate of 5°C / min, and carry out the process at this temperature ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
flash pointaaaaaaaaaa
Login to View More

Abstract

A lubricating oil for high-temperature-resistant powder metallurgy oil-impregnated bearings, prepared from the following raw materials in parts by weight: 25-45 parts of trimethylolpropane ester, 55-75 parts of trimellitate, polymethacrylate 2-10 parts, 1-5 parts of diisooctyl diphenylamine, 1-5 parts of high molecular weight phenol, 0.1-1 part of benzotriazole, 0.1-1 part of triphenyl phosphorothioate and 0.005 parts of methyl silicone oil ‑0.02 parts. The lubricating oil of the present invention can carry out continuous and stable lubricating operation of oil-impregnated bearings at a temperature of 200°C or above. And the lubricating oil is not easy to change color after long-term use at high temperature, and there will be no oxidation and coking. The finished lubricating oil has a high flash point and low evaporation loss. After being used, it can significantly prolong the service life of the equipment and reduce its maintenance rate.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a lubricating oil for high-temperature-resistant powder metallurgy oil-impregnated bearings and a preparation method thereof. Background technique [0002] Powder metallurgy oil-impregnated bearings are made of metal powder and other anti-friction material powders by pressing, sintering, shaping and oil immersion. The bearing is filled with lubricating oil by means of high temperature or vacuum immersion in lubricating oil. During operation, due to the suction effect of the journal rotation and frictional heating, the metal and oil are heated and expanded, and the oil is squeezed out of the pores, and then in The friction surface acts as a lubricant, and after the bearing cools down, the oil is sucked back into the pores, thereby achieving a self-lubricating effect. [0003] Powder metallurgy oil-impregnated bearings are widely used in household appliances, automobiles, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N30/12C10N30/18C10N40/02C10N40/20
CPCC10M169/044C10M2207/023C10M2207/2835C10M2207/2855C10M2209/08C10M2215/064C10M2215/223C10M2223/047C10M2229/041C10N2030/06C10N2030/08C10N2030/12C10N2030/18C10N2040/02C10N2040/20C10N2020/04
Inventor 陈凯
Owner 洛阳精一新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com