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Totally-synthesized DAJ heavy-load screw air compressor oil composition

An air compressor oil and composition technology, applied in the field of lubricating oil, can solve the problems of poor anti-emulsification performance, shortened service life, long oil-water separation time, etc., and achieve good anti-oxidation performance

Inactive Publication Date: 2017-02-22
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Judging from the above-mentioned patents, the formulations are unreasonable, such as the use of metal detergents and ashless dispersants, or the use of easily hydrolyzed antioxidants, resulting in defects in performance, such as long oil-water separation time (poor anti-emulsification performance), In the case of high oil temperature and the presence of water and metal catalysts, the anti-oxidation performance will deteriorate, that is, the service life will be shortened, and the wear and tear of parts will increase, which cannot meet the needs of fully synthetic heavy-duty screw air compressors. harsh environment

Method used

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  • Totally-synthesized DAJ heavy-load screw air compressor oil composition
  • Totally-synthesized DAJ heavy-load screw air compressor oil composition
  • Totally-synthesized DAJ heavy-load screw air compressor oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: 32 fully synthetic DAJ heavy-duty screw air compressor oil compositions

[0043] In a 5000mL stainless steel barrel, weigh 2000g according to the following ratio (mass fraction); the functional additive is accurate to 0.1g: 1. Fully synthetic base oil composition

[0044] (1) Alkyl naphthalene 8%

[0045] (2) Balance of polyalphaolefin (PAO)

[0046] 2. Functional additive composition

[0047] Antioxidant Additive Composition

[0048] Amine type high temperature antioxidant additive composition:

[0049] (1) C4 / C8 alkyl substituted diphenylamine 0.20%

[0050] (2) Phenyl-α-naphthylamine 0.25%

[0051] Phenolic antioxidant additives:

[0052] 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid 2-ethyl-hexyl ester 0.15%

[0053] Antioxidant and antiwear multi-effect additives:

[0054] Methyl di-n-butyldithiocarbamate 0.20%

[0055] Extreme pressure antiwear additive composition:

[0056] (1) Tricresyl phosphate 0.27%

[0057] (2) Phosphorodithioate 0...

Embodiment 2

[0070] Embodiment 2: 32 fully synthetic DAJ heavy-duty screw air compressor oil compositions

[0071] In a 5000mL stainless steel barrel, weigh 2000g according to the following ratio (mass fraction), and the functional additive is accurate to 0.1g: 1. Fully synthetic base oil composition

[0072] (1) Neopentyl polyol ester 5%

[0073] (2) Balance of polyalphaolefin (PAO) 2. Functional additive composition

[0074] Antioxidant Additive Composition

[0075] Amine type high temperature antioxidant additive composition:

[0076] (1) C4 / C8 alkyl substituted diphenylamine 0.18%

[0077] (2) Phenyl-α-naphthylamine 0.25%

[0078] Phenolic antioxidant additives:

[0079] 2-ethyl-hexyl 3,5-di-tert-butyl-4-hydroxyphenylpropionate 0.30%

[0080] Antioxidant and antiwear multi-effect additives:

[0081] Methyl di-n-butyldithiocarbamate 0.25%

[0082] Extreme pressure antiwear additive composition:

[0083] (1) Tricresyl phosphate 0.30%

[0084] (2) Phosphorodithioate 0.20%; metal...

Embodiment 3

[0094] Embodiment 3: 46 fully synthetic DAJ heavy-duty screw air compressor oil compositions

[0095] In a 5000mL stainless steel barrel, weigh 2000g according to the following ratio (mass fraction), and the functional additive is accurate to 0.1g:

[0096] 1. Fully synthetic base oil composition

[0097] (1) Neopentyl polyol ester 4%

[0098] (2) Polyether balance

[0099] 2. Functional additive composition:

[0100] Antioxidant Additive Composition

[0101] Amine type high temperature antioxidant additives:

[0102] (1) C4 / C8 alkyl substituted diphenylamine 0.23%

[0103] (2) Phenyl-α-naphthylamine 0.29%

[0104] Phenolic antioxidant additives:

[0105] 2-ethyl-hexyl 3,5-di-tert-butyl-4-hydroxyphenylpropionate 0.25%

[0106] Antioxidant and antiwear multi-effect additives:

[0107] Methyl di-n-butyldithiocarbamate 0.30%

[0108] Extreme pressure antiwear additive composition:

[0109] (1) Tricresyl phosphate 0.27%

[0110] (2) Phosphorodithioate 0.21%;

[0111] ...

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Abstract

The invention discloses totally-synthesized DAJ heavy-load screw air compressor oil composition. The composition is prepared from components shown in the specification in percentage by mass.

Description

technical field [0001] The invention relates to a fully synthetic DAJ heavy-duty screw air compressor oil composition, which is a lubricant used in screw compressors, oil-injected rotary air compressors or other fields, and belongs to the field of lubricating oil. Background technique [0002] Heavy-duty DAJ screw air compressor oil belongs to the oil injection rotary in the standard GB / T 7631.9-2014 "Classification of Lubricants, Industrial Oils and Related Products (L Category) Part 9: Group D (Compressor)" One of the compressors. Such products are divided into three quality grades: DAG, DAH and DAJ according to product type and (or) performance requirements and typical applications, see Table 1. [0003] Table 1 Quality grade, typical application and operating conditions of screw air compressor oil [0004] [0005] Except for continuous or near-continuous operation where the temperature of the air / lubricant does not exceed 100°C, the working cycle of the screw air c...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M161/00C10N30/10C10N30/06C10N30/12
CPCC10M161/00C10M169/044C10M2203/065C10M2203/1006C10M2207/127C10M2207/2835C10M2207/288C10M2209/084C10M2209/103C10M2209/1033C10M2209/104C10M2209/105C10M2215/064C10M2215/065C10M2215/223C10M2215/224C10M2217/06C10M2219/066C10M2223/041C10M2223/047C10N2030/06C10N2030/10C10N2030/12C10N2030/72C10N2040/30
Inventor 陈东陈英陈勇潘莲莲聂杰种盼盼
Owner ZHEJIANG OCEAN UNIV
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