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Lubricating oil

A technology of lubricating oil and oily agent, applied in the directions of lubricating composition, petroleum industry, base material, etc., can solve the problems of increasing production cost, increasing production process, not easy to volatilize, etc. Volatile effect

Inactive Publication Date: 2009-01-07
NINGBO JINTIAN COPPER TUBE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The low-molecular substances produced by these high-molecular hydrocarbons during high-temperature annealing are repolymerized, are not easy to volatilize, and form precipitates and colloids. They need to be cleaned and purged with solvents, which increases the production process and increases the production cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment one, the weight percentage formula composition of the lubricating oil of the present embodiment is as follows:

[0022] Polyalkylene ether: 50%;

[0023] Isotridecanyl sebacate: 30%;

[0024] Tricresyl phosphate: 6%;

[0025] Isooctyl oleate: 10%;

[0026] Phenyl α-naphthylamine: 2.5%;

[0027] Dodecenylsuccinic acid: 1.5%.

Embodiment 2

[0028] Embodiment two, the weight percentage formula composition of the lubricating oil of the present embodiment is as follows:

[0029] Polyalkylene ether: 70.92%;

[0030] Neopentyl laurate: 18%;

[0031] Dibutyl phosphite: 3%;

[0032] Glyceryl Oleate: 6%;

[0033] P, P'-Diisooctyldiphenylamine: 2%;

[0034] Tolyltriazole: 0.08%.

Embodiment 3

[0035] Embodiment three, the weight percentage formula composition of the lubricating oil of the present embodiment is as follows:

[0036] Polyalkylene ether: 88.85%;

[0037] Neopentyl oleate: 5%;

[0038] Zinc dialkyldithiocarbamate: 1%;

[0039] Isooctyl stearate: 3.75%;

[0040] Alkylated phenyl beta-aniline: 0.1% and 4,4'-methylenebis-(2,6-dibutyl-tert-butylphenol): 0.1%;

[0041] 1-Aminoethyl-b-heptadecenylimidazolinenylsuccinic acid: 1.2%.

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Abstract

The invention relates to a lubricating oil which is characterized in that the lubricating oil is made from the raw materials with the following weight portions of 50-90 percent of polyalkylene ether, 5-30 percent of synthetic ester oil, 1-6 percent of extreme pressure antiwear agent, 3.75-10 percent of oily agent, 0.2-2.5 percent of antioxidant, and 0.05-2.0 percent of antirust inhibitor. The invention has the advantages of high flash point, high viscosity index, good anti-corrosive property and lubrification property. The lubricating oil can holoblastically crack under the annealing temperature of 250-300 DEG C, has good volatility, does not produce precipitation and gelatine on copper tube, does not need to clean the copper tube, simplifies the production process of the copper tube, improves production efficiency and reduce production cost.

Description

technical field [0001] The invention relates to a lubricating oil for forming precision copper pipe drawing. Background technique [0002] The fluorine-free refrigerants currently used in the refrigeration industry have poor miscibility with the residues in the refrigeration system pipelines, resulting in the deterioration of refrigerant performance and the formation of precipitates, which can easily block capillary tubes or expansion valves, making refrigeration equipment unable to operate normally. Therefore, the refrigeration industry has put forward higher and higher requirements for the cleanliness of the inner surface of copper pipes used in refrigeration systems. The main factor affecting the cleanliness of the inner surface of the copper tube is the residue of lubricating oil in the copper tube. [0003] At present, the copper pipe drawing oil produced at home and abroad is basically composed of multiple components such as petroleum base, synthetic oil, hydrocarbon ...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M107/34C10M105/36C10M137/04C10M129/70C10M133/12C10M129/42C10N40/24
Inventor 王永如李玉璞黄绍辉王磊杨艾
Owner NINGBO JINTIAN COPPER TUBE
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