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Lubricating oil compound

A lubricating oil composition and the technology of the composition, which are applied in the directions of lubricating compositions, petroleum industry, etc., can solve the problems of insufficiency and insufficient wear resistance, and achieve high working accuracy, excellent wear resistance, and stability. The effect of working precision

Inactive Publication Date: 2015-11-04
JX NIPPON OIL & ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is difficult for conventional lubricating oils containing the above-mentioned additives to meet the above requirements, and in particular, the wear resistance tends to be insufficient.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3 and comparative example 1

[0167] Each lubricating oil composition of the present invention shown in Examples in Table 1 was prepared. The contents of base oil and additives are based on the total amount of the composition. As a lubricating oil for comparison, a commercially available turbine oil (manufactured by JX Nippon Oil & Energy Corporation; trade name: FBK TURBINE 68) was used. These lubricating oil compositions were subjected to the wear resistance test described below, and the results are shown in Table 1 in combination.

[0168]

[0169] According to JPI-5S-32-90, under the conditions of load: 294N, rotational speed: 1800rpm, test time: 30 minutes, the four-ball test was carried out, and the diameter of the wear track after the test was measured. Those with a wear scar diameter of 0.5 mm or less were evaluated as acceptable.

[0170]In the table, "◯" means "the diameter of the wear scar is 0.5 mm or less", and "×" means "the diameter of the wear scar is larger than 0.5 mm".

[0171] [Tab...

Embodiment 4～26

[0175] Furthermore, in order to demonstrate the effect of this invention, each lubricating oil composition of this invention shown in the Example of Table 2 was prepared. The contents of base oil and additives are based on the total amount of the composition. These lubricating oil compositions were subjected to the wear resistance test described above and the lubricity test described below, and the results are shown in Table 2 in combination.

[0176]

[0177] Evaluation of Lubricity Abrasion (mg) was measured according to ASTM D3233-93 (Falex P / V test). Those whose abrasion amount was 10 mg or less were evaluated as passing.

[0178] It should be noted that in the table, "○" means "the amount of wear is 10 mg or less"; "△" means "the amount of wear is more than 10 mg"; "×" means "the pin is damaged by bending or the like".

[0179] [Table 2]

[0180]

[0181] As can be seen from the results in Table 2, the lubricating oil composition of the present invention is excell...

Embodiment 27～32

[0183] Furthermore, in order to demonstrate the effect of this invention, each lubricating oil composition of this invention shown in the Example of Table 3 was prepared. The contents of base oil and additives are based on the total amount of the composition. These lubricating oil compositions were subjected to the positioning accuracy test described below, and the results are shown in Table 3 in combination.

[0184]

[0185] The following command is provided through numerical control: starting from any coordinate on the NC precision lathe along the Z-axis direction every 10 seconds at a fast-forward speed (24m / min) to move 1 μm in the positive direction for a total of 20 times, and then provide the following Instructions: Do the same nudge along the negative direction. The actual movement amount was measured with an electrostatic capacity type displacement meter, and the response accuracy of the lathe guide surface to numerical control commands was measured for each lubri...

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Abstract

The invention provides a lubricating oil compound with excellent abrasion resistance. The lubricating oil compound is characterized in that mineral oil and / or synthetic oil serve / serves as base oil. With the total amount of the compound being reference, the compound comprises s, by mass, 0.01-3% of a hindered phenol antioxidant and / or an aromatic amine antioxidant (A), and 0.001-5% of a phosphate ester extreme pressure agent (B) and / or a chalcogenide extreme pressure agent. The kinematic viscosity of the compound at the temperature of 40 DEG C ranges from 10 mm<2> / s to 4600 mm<2> / s.

Description

technical field [0001] This invention relates to lubricating oil compositions. In particular, it relates to a lubricating oil composition for machine tools, and in detail, it relates to a lubricating oil composition suitable for use as a lubricating oil for sliding guideways surfaces of machine tools. Background technique [0002] Lubricating oils for sliding guide surfaces such as machining tables of machine tools require lubricity in order to improve machining accuracy. And, in order to meet these requirements, lubricating oils containing additives such as extreme pressure agents and oily agents are used. In addition, from the standpoint of normal operation of the machine tool, lubricity with the hydraulic pump as an additional equipment of the machine tool is also required, and lubricating oil mixed with additives such as extreme pressure agents and oily agents is used. [0003] Examples of such additives include phosphoric acid esters, acidic phosphoric acid esters, ph...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/02C10N30/06C10N40/22
Inventor 菅原常年辻本铁平
Owner JX NIPPON OIL & ENERGY CORP
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