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A kind of l-dah46 viscosity level screw air compressor oil composition

A technology of air compressor oil and composition, which is applied in the field of lubricating oil, and can solve the problems of unsatisfactory FZG bearing test results and the like

Active Publication Date: 2021-06-25
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Referring to the requirements of GB / T260, GB / T 12581 and NB / SH / T 0306 and the actual needs of equipment lubrication, the oil oxidation stability of screw air compressors is required to be greater than 3000 hours, and the FZG load-bearing test results of existing products are not ideal

Method used

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  • A kind of l-dah46 viscosity level screw air compressor oil composition
  • A kind of l-dah46 viscosity level screw air compressor oil composition
  • A kind of l-dah46 viscosity level screw air compressor oil composition

Examples

Experimental program
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Effect test

Embodiment 1

[0037] This example provides a screw air compressor oil composition with L-DAH46 viscosity grade, the composition of which is shown in Table 2.

[0038] Table 2: Composition of L-DAH46 viscosity grade screw air compressor oil

[0039]

[0040]

Embodiment 2

[0042] This example provides a screw air compressor oil composition with L-DAH46 viscosity grade, the composition of which is shown in Table 3; compared with Example 1, the only difference is that the aromatic amine content is 0.2%. The content of alkyl disulfide carbamate is 0.4%, the content of dialkyl dithiophosphate is 0.2%, and the content of nitrogen-containing derivatives of phosphoric acid sulfur is 2.7%.

[0043] Table 3: Composition of L-DAH46 viscosity grade screw air compressor oil

[0044] Element Content (wt%) Arylamine 0.2 Dialkyl disulfide carbamates 0.4 dialkyldithiophosphate 0.2 Thiophosphoric acid nitrogen-containing derivatives 2.7 organoborate compound 0.5 Sulfonate 0.5 alkenyl succinic acid 0.6 Thiadiazole Derivatives 0.4 Polymethacrylate 1.0 Polyoxypropylene derivatives 0.2 Acrylate and ether copolymer 0.2 Group III hydrorefined base oil margin

Embodiment 3

[0046] This example provides a screw air compressor oil composition with a viscosity grade of L-DAH46, the composition of which is shown in Table 4; compared with Example 1, the only difference is that the aromatic amine content is 0.2%. The content of alkyl disulfide carbamate is 0.4%, the content of dialkyl dithiophosphate is 0.5%, and the content of nitrogen-containing derivatives of phosphoric acid sulfur is 5.0%.

[0047] Table 4: Composition of L-DAH46 viscosity grade screw air compressor oil

[0048]

[0049]

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Abstract

The present invention relates to a screw air compressor oil composition of L-DAH46 viscosity level, the composition includes hydrogenated base oil and an antioxidant accounting for 0.2 to 2% by weight of the composition; the antioxidant The agent is prepared by mixing aromatic amine, dialkyl disulfide carbamate and dialkyl dithiophosphate in a mass ratio of (1-5):(1-5):(1-5). The screw air compressor oil composition provided by the present invention has excellent performance and a wide application range, can greatly improve the service life of the screw air compressor oil, and meet the customer's requirements for the screw air compressor oil of L-DAH46 viscosity level. and the L-DAH46 viscosity grade screw air compressor oil composition provided by the present invention has simple ingredients, easy-to-obtain raw materials, simple and convenient preparation method, and has broad large-scale application prospects.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to an L-DAH46 viscosity level screw air compressor oil composition with excellent long-life bearing capacity. Background technique [0002] L-DAH46 viscosity grade screw air compressor oil is mainly used to lubricate the moving parts in the compression chamber. The structure of the compressor changes with the times, and the lubrication conditions gradually become harsh. At present, compressor manufacturers tend to extend the oil change interval, and compressor manufacturers put forward new requirements for the compressor load. Therefore, in order to better meet the equipment lubrication requirements, it is necessary to optimize the oxidation stability and bearing capacity of the oil. The specific requirements are as follows: Table 1 shows. [0003] Table 1 GB / T260, GB / T 12581 and NB / SH / T 0306 index requirements [0004] [0005] Referring to the requirements of GB / T260, GB / T 1258...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/10C10N30/06
CPCC10M169/048C10M2207/123C10M2209/084C10M2209/103C10M2209/105C10M2215/06C10M2219/044C10M2219/068C10M2219/106C10M2223/04C10M2227/061C10N2030/06C10N2030/10C10N2040/30
Inventor 庞博赵海鹏王宁王帅彪周轶安岸斐金吟张国茹郭珍文彦龙石啸孟振英
Owner CHINA PETROLEUM & CHEM CORP