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Long-life fully synthetic industrial gear lubricant composition

A technology of gear lubricating oil and composition, which is applied in the field of lubricating oil composition and industrial gear transmission system lubricating oil composition, can solve the problems of undisclosed literature reports on the specific composition of additives, and achieve good economic and social benefits, Excellent high and low temperature performance, excellent performance effect

Active Publication Date: 2014-08-06
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The market of synthetic industrial gear oil is basically monopolized by foreign companies, but there is no public literature report on the specific composition of synthetic industrial gear oil base oil and additives

Method used

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  • Long-life fully synthetic industrial gear lubricant composition
  • Long-life fully synthetic industrial gear lubricant composition
  • Long-life fully synthetic industrial gear lubricant composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]Lubricating oil composition (I), it comprises: 95.9wt% polyalpha-olefin synthetic base oil PAO-10 (property sees Table 1) (component A); 0.50wt% 2,6-di-tert-butylphenol , 0.50wt% N-phenyl-α-naphthylamine and dinonyldiphenylamine condensate (component B); 0.20wt% benzotriazole di-n-octylamine formaldehyde condensate (component C); 0.2wt% C14-18 alkyl salicylate (component D); 2.0wt% tricresyl phosphate (component E); 0.50wt% oleic acid amide (component F); 0.20wt% octadecene Acid amine salt (component G). The lubricating oil composition (II) except component (B) 0.50wt% N-phenyl-α-naphthylamine and dinonyl diphenylamine condensate is replaced by 0.50wt% di-n-octyl dithiocarbamate Except for replacement, all the other are the same as composition (I). Lubricating oil composition (III) except component (A) 0.50wt% N-phenyl-alpha-naphthylamine and dinonyl diphenylamine condensate is replaced by 0.25wt% N-phenyl-alpha-naphthylamine and dinonyl diphenylamine Except for nonyl...

Embodiment 2

[0031] Lubricating oil composition (IV), it comprises: the polyalpha-olefin synthetic base oil PAO-4 of 13.7wt%, the polyalpha-olefinic synthetic base oil PAO-100 of 77.8wt% (property sees Table 1) (component A ); 1.0wt% of 2,6-di-tert-butylphenol, 1.0wt% of N-phenyl-α-naphthylamine and butylnonyl diphenylamine condensate, 1.0wt% of di-n-butyldithiocarbamic acid Esters (component B); 1.0 wt% thiadiazole dodecyl mercaptan hydroperoxide condensate (component C); 2.0 wt% C8-12 sulfurized alkylphenates (component D); 1.0 wt % tricresyl phosphate (component E); 0.50 wt% monoisooctyl dodecenylsuccinate (component F); 1.0 wt% octadecenoate (component G). Lubricating oil composition (V) is the same as composition (IV) except that 1.0wt% tricresyl phosphate in component (E) is replaced by 1.0wt% lauryl phosphite. Lubricating oil composition (VI) is the same as composition (IV) except that 1.0 wt% tricresyl phosphate in component (E) is replaced by 1.0 wt% dodecylamine phosphate. Lubr...

Embodiment 3

[0036] Lubricating oil composition (IX), it comprises: the polyalpha-olefin synthetic base oil PAO-40 of 88.73wt%, the polyalpha-olefinic synthetic base oil PAO-100 (property see Table 1) of 4.67wt% (component A ); 0.3wt% of 2,6-di-tert-butylphenol, 0.5wt% of N-phenyl-α-naphthylamine and dinonyl diphenylamine condensate, 0.5wt% of di-n-octyl dithioamino Formic acid ester (component B); 0.1 wt% benzotriazole di-n-butylamine formaldehyde condensate (component C); 2.0 wt% C8-12 sulfurized alkylphenate (component D); 0.5 wt% phosphoric acid Tricresyl, 0.5 wt% lauryl phosphite, 0.5 wt% dodecyl phosphate, 0.5 wt% tris(dodecyl)phosphorothioate (component E); 1.0 wt% oil Acid Amide (Component F); 0.2% by weight of Octadenoic Acid Ammonium Salt (Component G). Lubricating oil composition (X) is the same as composition (IX) except that 2.0wt% of C8-12 sulfurized alkylphenate in component (D) is replaced by 2.0wt% of C14-18 alkyl salicylate . Lubricating oil composition (XI) is the sam...

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Abstract

The invention provides a long-life fully synthetic industrial gear lubricant composition, which comprises (A) at least one synthetic base oil; (B) at least one anti-oxidant; (C) at least one metal passivator; (D) at least one metal detergent; (E) at least one antiwear agent; (F) at least one antirust agent; and (G) at least one friction modifier. The above lubricant composition has characteristics of high viscosity index and low pour point and can satisfy needs of industrial gear oil of 68-680 viscosity grade. The above lubricant composition has excellent anticorrosive and antirust properties, anti-foaming property, demulsibility, oxidation resistance and abrasion resistance. The antioxidation performance of the lubricant composition is particularly prominent. In addition, the lubricant composition is applicable to industrial gear and bearing lubrication system under harsh conditions of high temperature, high pressure, heavy duty and the like, and especially has outstanding performance in equipment protection, oil life and failure-free operation.

Description

(1) Technical field [0001] The invention relates to a lubricating oil composition, in particular to a lubricating oil composition used in industrial gear transmission systems, and belongs to the technical field of lubricating oil and lubricating oil additives. (2) Background technology [0002] With the continuous improvement of the precision of machinery and equipment in my country's metallurgy, building materials, coal, chemical industry, shipbuilding and other industries, the performance requirements for lubricating oil are becoming more and more stringent. Mineral oil can no longer meet the harsh operating environment in terms of low temperature resistance, oxidation resistance and low volatility, so the demand for synthetic industrial gear oil will increase day by day. Synthetic industrial gear oil refers to gears that are used in heavy load, high temperature, water mixing and other working conditions, such as metallurgical rolling steel with tooth surface contact stres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N40/04C10N30/12C10N30/06C10N30/18C10N30/10
Inventor 伏喜胜华秀菱
Owner PETROCHINA CO LTD
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