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Preparation method of maintenance agent for lubricating and protecting wire rope

A technology for steel wire rope and rust inhibitor, which is used in lubricating compositions, petroleum industry, etc., can solve the problems of high pour point, poor low temperature performance of semi-fluid grease, and high aromatic components, and achieves good extreme pressure, good high and low temperature performance. Effect

Inactive Publication Date: 2015-04-15
天津市津冠润滑脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a by-product of the production of lubricating oil base oil, the extracted oil has high viscosity characteristics, but due to its high aromatic content, the pour point of this oil is relatively high, generally above 15°C, which makes this semi-fluid lubrication The low temperature performance of grease is poor, which limits its application in low temperature environment

Method used

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  • Preparation method of maintenance agent for lubricating and protecting wire rope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of a wire rope maintenance agent, comprising the following steps:

[0031] Preparation of base fat:

[0032] 1) Mix 400g of base oil 600SN, 50g of lauryl hydroxystearic acid, and 15g of sebacic acid, and keep stirring at 100°C until the raw materials are completely dissolved;

[0033] 2) Dissolve 13.5g of lithium hydroxide in water, take out 1 / 3 of the lye and add it to the above material, control the reaction temperature at 100°C for 10 minutes, then add the rest of the lye to the above material, maintain the reaction temperature, and stir 60min.

[0034] 3) Raise the temperature of the above materials to 150°C, add 3.8g of diphenylamine antioxidant, then continue to raise the temperature to 210°C for high-temperature refining, and keep it for 10 minutes.

[0035] 4) When the temperature of the material is lowered to below 80°C, it is ground and homogenized by a three-roll machine to obtain the base grease.

[0036] Preparation of wire rope main...

Embodiment 2

[0042] A preparation method of a wire rope maintenance agent, comprising the following steps:

[0043] 1) Heat 480g of base oil (150BS mineral oil) and 35g of the base grease prepared in Example 1 to 80°C and mix well;

[0044] 2) Add 3.1g of diphenylamine, 5.2g of barium petroleum sulfonate, 1g of colloidal graphite, 1g of nano-molybdenum disulfide and 15.6g of polyisobutylene thickener to the mixture obtained in step 1) in sequence, stir evenly, and maintain the temperature at 90 ℃;

[0045] 3) When the material obtained in step 2) drops below 80°C, it is homogenized by a three-roll mill.

[0046] List its performance in Table 1.

Embodiment 3

[0048] A preparation method of a wire rope maintenance agent, comprising the following steps:

[0049] 1) Heat 480g of base oil (a mixture of 300g of PAO-40 and 180g of PAO-10) and 35g of the base grease prepared in Example 1 to 80°C and mix well;

[0050] 2) Add 3.1g of diphenylamine, 5.2g of barium petroleum sulfonate, 1g of colloidal graphite, 1g of nano-molybdenum disulfide and 15.6g of ethylene-propylene copolymer thickener to the mixture obtained in step 1) in sequence, stir evenly, and maintain the temperature at 90°C;

[0051] 3) When the material obtained in step 2) drops below 80°C, it is homogenized by a three-roll mill.

[0052] List its performance in Table 1.

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Abstract

The invention relates to a preparation method of a maintenance agent for lubricating and protecting a wire rope, which comprises the following steps: 1) heating base oil and base grease to 80-90 DEG C, and uniformly mixing; 2) sequentially adding an antioxidant, a rust inhibitor, colloidal graphite, nano molybdenum disulfide and a thickener into the mixed solution obtained in the step 1), stirring uniformly, and keeping the temperature at 80-90 DEG C; and 3) when the material obtained in the step 2) is cooled to 80 DEG C below, carrying out homogeneization treatment with a triple-roller mill to obtain the wire rope maintenance agent. The wire rope maintenance agent has the advantages of favorable high / low temperature properties, favorable extreme pressure property, high rust resistance and high corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of steel wire rope protection, in particular to a maintenance agent for steel wire rope lubrication and protection and a preparation method thereof. Background technique [0002] During the manufacturing process of the steel wire rope, the steel wire rope has been coated with grease. However, after the beginning of use, due to the effect of tension and pressure, the grease inside the wire rope, especially the grease in the rope core, will float to the surface, resulting in a decrease in the internal oil content. In addition, external environmental influences, such as exposure to rain, can also cause gradual loss of grease. In order to keep the wire rope in good condition and achieve long-term use, the wire rope must be maintained and lubricated during work. Practice has proved that the life of the steel wire rope can be extended by 2 to 3 times through regular grease application and selection of suitable l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/06C10M177/00C10N40/32
Inventor 闫洪崔彦兵
Owner 天津市津冠润滑脂有限公司
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