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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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The low-molecular substances produced by these high-molecular hydrocarbons during high-temperature annealing are repolymerized, are not easy to volatilize, a
Method used
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Example Embodiment
[0021] In the first embodiment, the formula of the weight percentage of the lubricating oil in this embodiment is as follows:
[0022] Polyalkylene ether: 50%;
[0023] Isotridecanol sebacate: 30%;
[0024] Tricresol phosphate: 6%;
[0025] Isooctyl oleate: 10%;
[0026] Phenyl α-naphthylamine: 2.5%;
[0027] Dodecenyl succinic acid: 1.5%.
Example Embodiment
[0028] In the second embodiment, the formula of the weight percentage of the lubricating oil in this embodiment is as follows:
[0029] Polyalkylene ether: 70.92%;
[0030] Neopentyl laurate: 18%;
[0031] Dibutyl phosphite: 3%;
[0032] Glycerol oleate: 6%;
[0033] P, P'-Diisooctyl diphenylamine: 2%;
[0034] Tolytriazole: 0.08%.
Example Embodiment
[0035] The third embodiment, the weight percentage formula of the lubricating oil of this 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 β-aniline: 0.1% and 4,4'-methylenebis-(2,6-dibutyl tert-butylphenol): 0.1%;
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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 ...
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Application Information
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