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Anti-wear hydraulic oil capable of preventing chromium plated metal from blackening and bluing, as well as preparation method and application thereof

A technology of anti-wear hydraulic oil and anti-wear agent, which is applied in the petroleum industry, additives, lubricating compositions, etc., can solve problems such as black rods, low working temperature and pressure, and short service life, so as to avoid blackening, Satisfying the effect of long-term use performance and excellent anti-oxidation stability

Active Publication Date: 2012-10-03
上海火炬润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an anti-wear hydraulic oil that prevents the blackening and bluishness of chrome-plated metals and its preparation method, which is used to solve the problem of working temperature and working conditions of common hydraulic oils in the prior art. The pressure is not high, the service life is short, and the machine using ordinary anti-wear hydraulic oil will produce the problem of "blue rod, black rod" phenomenon

Method used

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  • Anti-wear hydraulic oil capable of preventing chromium plated metal from blackening and bluing, as well as preparation method and application thereof
  • Anti-wear hydraulic oil capable of preventing chromium plated metal from blackening and bluing, as well as preparation method and application thereof
  • Anti-wear hydraulic oil capable of preventing chromium plated metal from blackening and bluing, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Anti-wear hydraulic oil that prevents chrome-plated metal from turning black and blue, its specific formula (weight percentage) is as follows:

[0055]

[0056] The balance is 150SN and 500SN base oil, the weight ratio of the two is 65:35

[0057] Mix the above components, heat to 50°C, keep warm for 40-60 minutes, and stir evenly.

Embodiment 2

[0059] Anti-wear hydraulic oil that prevents chrome-plated metal from turning black and blue, its specific formula (weight percentage) is as follows:

[0060]

[0061] The balance is 150SN and 500SN base oil, the weight ratio of the two is 65:35

[0062] Mix the above components, heat to 50°C, keep warm for 40-60 minutes, and stir evenly.

[0063] The relevant standards of the enterprise (enterprise standard) were used to test Example 1 and Example 2 and a commercially available domestic well-known brand HM46 anti-wear hydraulic oil (comparative example). The specific test results are shown in Table 1:

[0064] Table 1

[0065]

[0066] Note: The corrosion test is carried out using the enterprise standard Q / IQLE39-2012, which is suitable for determining the degree of corrosion of anti-wear hydraulic oil on metal materials plated. The specific method is:

[0067] 1. Sampling: The sample should be stored in a clean glass bottle or plastic bottle and other suitable conta...

Embodiment 3

[0073] Anti-wear hydraulic oil that prevents chrome-plated metal from turning black and blue, its specific formula (weight percentage) is as follows:

[0074]

[0075]

[0076] The balance is 150SN and 500SN base oil, the weight ratio of the two is 65:35

[0077] Among them, the antioxidants are as shown in Table 2, and the SH / T0193-92 rotary oxygen bomb method is used to test the mixed base oils with different oxidants in 150SN (65wt%) and 500SN (35wt%) Oxidation stability comparison test, the results are shown in Table 2.

[0078] Table 2

[0079]

[0080] As can be seen from the data in Table 2, the present invention passes through 2,6 di-tert-butylphenol and dialkyl diphenylamine, N, N-di-n-butylaminomethylene benzotriazole and thiocarbamate The compounded antioxidant achieves the complementary performance advantages of various antioxidants and greatly improves the long-term high-temperature anti-oxidation stability of the oil.

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Abstract

The invention provides anti-wear hydraulic oil capable of preventing chromium plated metal from blackening and bluing, and preparation method thereof. The anti-wear hydraulic oil comprises the following components in weight percent: 0.4%-0.8% of antiwear agent, 0.2%-0.4% of high alkaline petroleum sulfonate, 0.3%-1.2% of antioxygen, 20 ppm-80 ppm of demulsifying agent, 0.2%-0.5% of octadecylamine, 0.1%-0.3% of antirusting agent, 10 ppm-20 ppm of antifoaming agent, and the balance of base oil. The anti-wear hydraulic oil can efficiently avoid the blackening and bluing phenomena frequently occurring during the process that normal anti-wear hydraulic oil is applied onto the piston rod of engineering machinery, and meanwhile has the anti-wear performance; when the anti-wear hydraulic oil is applied, the increase of the acid value along with time is not significant, so that the anti-wear hydraulic oil has excellent antioxidation stability, and can satisfy long-term use by the engineering machinery hydraulic system.

Description

technical field [0001] The invention belongs to the technical field of industrial lubricating oil, and relates to an anti-wear hydraulic oil, in particular to an anti-wear hydraulic oil which prevents chrome-plated metal from turning black and bluish, and a preparation method and application thereof. Background technique [0002] With the rapid development of China's infrastructure, especially the urbanization process and the acceleration of railway construction, more and more mechanical equipment, especially excavators, are used. The structure and working conditions of the hydraulic system of such mechanical equipment are different from those of ordinary industrial There is a big difference in the hydraulic system on the hydraulic system. Many failures often occur when using ordinary industrial anti-wear hydraulic oil, such as frequent damage to the hydraulic pump, weak hook arm movement, hysteresis and high oil temperature, and the piston rod is prone to black and blue, etc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/10C10M169/04C10N40/08C10N30/06
Inventor 任永忠
Owner 上海火炬润滑油有限公司
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