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Lubricating oil composition for sliding glide surface

A lubricating oil composition and sliding guide technology, which can be used in lubricating compositions, petroleum industry, additives, etc., and can solve the problems of reduced positioning accuracy and low friction

Active Publication Date: 2017-08-01
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since positioning accuracy may decrease due to frictional resistance generated on the guide surface of a machine tool having a sliding guide surface, lubricating oil is used, and the lubricating oil used on the guiding surface must show low friction

Method used

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  • Lubricating oil composition for sliding glide surface
  • Lubricating oil composition for sliding glide surface
  • Lubricating oil composition for sliding glide surface

Examples

Experimental program
Comparison scheme
Effect test

example

[0040] The following materials were prepared in order to produce working examples and comparative examples.

[0041] base oil

[0042] Base oil 1: GTL (gas to liquid) base oil belonging to Group III (characteristics: dynamic viscosity at 100°C: 7.579mm 2 / s, dynamic viscosity at 40°C: 43.69mm 2 / s, viscosity index (VI): 141, density at 15°C: 0.8284) (Shell XHVI-8 manufactured by Royal Dutch Shell)

[0043] Base oil 2 Refined mineral oil belonging to Group III (Characteristics: Dynamic viscosity at 100°C: 7.545mm 2 / s, dynamic viscosity at 40°C: 45.50mm 2 / s, viscosity index (VI): 132, density at 15°C: 0.8453) (Yu-Base8 manufactured by SK Innovation)

[0044] additive

[0045] Additive 1-1: Dilauryl hydrogen phosphite

[0046] Additive 1-2: Dioleyl hydrogen phosphite

[0047] Additive 2-1: Lauric acid

[0048] Additive 2-2: stearic acid

[0049] Additive 2-3: Oleic acid

[0050] Additive 3: Dibutyl hydrogen phosphite

[0051] Additive 4: Di-2-ethylhexyl hydrogen ...

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Abstract

A lubricating oil composition for a sliding guide surface, which exhibits excellent low friction properties and extreme pressure properties so as to enable high precision machining in a machine tool, is disclosed.

Description

technical field [0001] The present invention relates to a lubricating oil composition suitable for lubricating sliding guide surfaces of machine tools and the like. Background technique [0002] In order to carry out high-precision machining with the aid of machine tools, the positioning accuracy of the feed axes of the machine tools must be excellent, with precision in the micron range being required in some cases. However, lubricating oil is used because positioning accuracy may decrease due to frictional resistance generated on the guiding surface of a machine tool having a sliding guiding surface, and the lubricating oil used on the guiding surface must show low friction. [0003] Furthermore, lubricating oils for machine tools are also used for lubricating gears and the like in addition to the guide surfaces as described above, and load-bearing characteristics are also required as important features in such cases. [0004] Therefore, since the guide surface requires sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M141/10C10N30/06
CPCC10M141/10C10M169/04C10M2223/049C10M2223/04C10M2219/082C10M2219/106C10M2203/1006C10M2203/1025C10M2207/126C10N2020/02C10N2030/06C10M2205/0285C10M2205/173C10M137/02C10M2223/06C10N2040/20C10M129/40C10M137/04C12P7/40
Inventor 永仮光洋
Owner SHELL INT RES MAATSCHAPPIJ BV