Method for detecting inoxidizability of lubricating oil

A technology of anti-oxidation and detection method, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of cumbersome detection steps, expensive detection instruments, etc., and achieve the effect of intuitive results, easy to determine, and conducive to popularization and use.

Inactive Publication Date: 2013-07-24
北京天元联发汽车贸易有限责任公司
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  • Abstract
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AI Technical Summary

Benefits of technology

This technology uses regular heated water or other liquids at specific temperatures that help prevent deteriorated materials from being damaged during use on machinery. Its advantages include low costs compared with existing methods like measuring resistances based on physical properties such as viscosity (viscidence) levels), elastic modulus values, etc., ease-of-use, reliability, repeatable accuracy, and precise measurement capabilities.

Problems solved by technology

The technical problem addressed in this patented text relates to finding an effective way to detect how well lubricant can resist being exposed during use without requiring complicated or costly methods for testing its properties.

Method used

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  • Method for detecting inoxidizability of lubricating oil
  • Method for detecting inoxidizability of lubricating oil
  • Method for detecting inoxidizability of lubricating oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take 200g of 1# lubricating oil, and use the following method to carry out the oxidation resistance test:

[0021] (1) Surface tension measurement before baking: measure the surface tension value N1 of 1# lubricating oil;

[0022] (2) Baking sample: put 1# lubricating oil in an oven and bake at a constant temperature of 70°C for 6 hours;

[0023] (3) Surface tension measurement after baking: measure the surface tension value N2 of 1# lubricating oil after baking;

[0024] (4) Result analysis: Calculate the surface tension change rate R=(N1-N2) / N1×100% and relative standard deviation RSD of 1# lubricating oil.

[0025] Adjust the baking conditions, bake at a constant temperature in an oven at 80°C for 8 hours, and repeat the above steps (1)-(4).

[0026] Adjust the baking conditions, bake in a 90°C oven at a constant temperature for 12 hours, and repeat the above steps (1)-(4).

[0027] At the same time, the industry standard SH / T 0193-2008 Lubricating Oil Oxidation S...

Embodiment 2

[0032] take 2 # Lubricating oil 300g, detection method is the same as embodiment 1, and surface tension test result and judgment are shown in Table 3. At the same time, industry standards were used to conduct a comparative verification of its antioxidant activity, and the results are also shown in Table 3.

[0033] Table 3 Test results of oxidation resistance of 2# lubricating oil

[0034]

[0035] It can be seen from Table 3 that the anti-oxidation time of the industry standard detection reaches 251h, indicating that 2 # Lubricating oil has general oxidation resistance and relatively stable properties. This test method shows that 2 # The results of lubricating oil oxidation resistance are consistent with it.

Embodiment 3

[0037] take 3 # Lubricating oil 400g, detection method is the same as embodiment 1, and surface tension test result and judgment are shown in Table 4. At the same time, industry standards were used to conduct a comparative verification of its antioxidant activity, and the results are also shown in Table 4.

[0038] Table 4 Test results of oxidation resistance of 3# lubricating oil

[0039]

[0040] It can be seen from Table 4 that the line mark detection 3 # The anti-oxidation time of lubricating oil reaches 137h, which means 3 # Lubricating oil has poor oxidation resistance and unstable properties. This test method shows 3 # The results of lubricating oil oxidation resistance are consistent with it.

[0041] Table 4 Test results of base oil oxidation resistance

[0042]

[0043]

[0044] It can be seen from Table 4 that the base oil anti-oxidation time of the industry standard test reaches 283 hours, which means that the base oil has general anti-oxidation prope...

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Abstract

The invention provides a method for detecting inoxidizability of lubricating oil, which includes the following steps: (1) determining surface tension value N1 of lubricating oil; (2) placing lubricating oil in a baking oven for baking at constant temperature; (3) determining the surface tension of lubricating oil after baking according to the step (2), and obtaining the surface tension value N2; (4) determining inoxidizability of lubricating oil according to the surface tension value N1 and 2 before and after baking. The detection method of the inoxidizability of lubricating oil provided by the invention has the characteristics of simple operation, visual and reliable result, easy determination and good reappearance, and the method can be used as an effective technology means for investigating inoxidizability of lubricating oil, and is good for popularization usage.

Description

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Claims

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Application Information

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Owner 北京天元联发汽车贸易有限责任公司
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