Steel wire rope lubricating grease for mine

A technology of steel wire rope and lubricating grease, applied in the field of lubrication, can solve the problem of low dropping point, heat and cold resistance, poor adhesion, water resistance, oxidation stability, rust prevention, extrusion and anti-wear performance that cannot meet the requirements of working conditions, etc. problems, to achieve the effect of improving lubrication effect, convenient coating and low production cost

Inactive Publication Date: 2019-09-06
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, due to the low dropping point, poor heat and cold resistance, poor adhesion, water resistance, oxidation stability, anti-rust, extrusion and anti-wear properties, the commonly used steel wire rope grease in China cannot meet the requirements of working conditions, and the performance and effect are often not satisfactory. Actual demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] The preparation technology of wire rope grease for mine of the present invention comprises the following steps:

[0022] (1) Prefabricated friction enhancer: Mix 0.02-0.1% graphene and dispersant (NMP, sodium dodecylsulfonate, polyvinylpyrrolidone, etc.) by ultrasonic for 2-3 hours, and then add 0.98-4.9% of the second foundation Oil, grind at 600rmp / min for 2-3h in a ball mill to obtain a solution with good dispersion effect, then heat to 200°C to volatilize the dispersant to obtain a graphene oil solution with a concentration of 2% by mass fraction (that is, graphene base oil solution ),spare;

[0023] (2) Prefabricated synthetic wax paste: mix 10-20% synthetic wax and 12-20% first base oil in a mass ratio of 1:1-1.5, stir at 120-140°C for 1-2 hours, and set aside;

[0024] (3) Add 20-30% tackifier and 4.5-6% first base oil into the reactor, heat to 80°C-90°C and stir for 0.5-1h;

[0025] (4) Add prefabricated synthetic wax paste and 10-30% wax paste, raise the temp...

example 1

[0028] Raw materials are composed as follows by mass percentage:

[0029] Wax paste 30%, polyethylene wax 10%, polyacrylate 25%, extract oil 24.5%, composite aluminum base grease 5%, tung oil 0.5%, graphene 0.1%, PAO40 4.9%.

[0030] Mix 0.1% graphene and dispersant NMP ultrasonically for 3 hours, then add 4.9% PAO40 and grind for 3 hours in a ball mill at 600rmp / min to obtain a solution with good dispersion effect, then heat to 200°C to volatilize the dispersant to obtain a concentration mass fraction of 2% graphene oil solution to get the prefabricated friction enhancer for later use; weigh 10% polyethylene wax and 15% extracted oil according to the mass ratio of 1:1.5, stir at 140°C for 1.5h to get the prefabricated synthetic Wax paste, spare; add 25% and 4.5% polyacrylate oil into the reactor, heat to 90°C and stir for 1 hour; add prefabricated synthetic wax paste and 30% wax paste, raise the temperature to 100°C and stir for 1 hour, then Add 5% composite aluminum-based g...

example 2

[0032] Raw materials are composed as follows by mass percentage:

[0033] Wax paste 20%, polyethylene wax 12%, ethylene-propylene copolymer 30%, extract oil 25%, composite aluminum-based grease 8%, tung oil 1%, graphene 0.08%, G250N 3.92%.

[0034] Mix 0.08% graphene and dispersant sodium dodecylsulfonate by ultrasonic for 2 hours, then add 3.92% G250N and grind in a ball mill at 600rmp / min for 3 hours to obtain a solution with good dispersion effect, then heat to 200°C to evaporate the dispersion 12% polyethylene wax and 12% extracted oil were mixed according to the mass ratio of 1:1, and stirred at 140°C for 2 hours, namely Obtain a prefabricated synthetic wax paste for later use; add 30% ethylene-propylene copolymer and 5% base oil into the reactor, heat to 90°C and stir for 1 hour; add prefabricated synthetic wax paste and 20% wax paste, and raise the temperature to 100°C Stir for 1 hour, then add 8% composite aluminum base grease and 5% extraction oil, and stir for 30 mi...

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PUM

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Abstract

The invention discloses steel wire rope lubricating grease for a mine. The steel wire rope lubricating grease comprises, by weight percentage, 10-30% of wax paste, 20-30% of a tackifier, 10-20% of synthetic wax, 24.5-33.5% of first base oil, 0.98-4.9% of second base oil, 5-15% of composite aluminum-based grease, 0.5-1.5% of tung oil and 0.02-0.10% of graphene. A small amount of the composite aluminum-based grease and a modified graphene anti-wear agent are added into hydrocarbon-based grease to prepare the semi-fluid steel wire rope lubricating grease with specific consistency, the dropping point of a product is increased, the high-temperature oxidation stability, water resistance, extrusion and wearing resistance and other protective properties of the product are improved, and the problems of high-temperature flowing, low-temperature cracking, corrosive rusting and the like of current products are solved.

Description

technical field [0001] The invention relates to a wire rope lubricating grease for mines, belonging to the technical field of lubrication. Background technique [0002] Steel wire ropes can be divided into mine hoist ropes, port machinery ropes, fishery ropes, crane ropes, elevator ropes, cable car ropes, construction machinery ropes, petroleum steel wire ropes, etc. according to different uses. "Coal Mine Safety Regulations" puts forward mandatory requirements for mine hoists: 1) high tensile strength, able to withstand large and vibrating loads; 2) able to work under high-speed motion conditions, stable operation; 3) light weight , easy to use and transport; 4) relatively soft, good flexibility, and can adapt to many aspects of work such as bundling, hoisting, winding, pulling; 5) good wear resistance, corrosion resistance and safety performance. [0003] The main factors affecting the service life of mining steel wire ropes are improper use and cans jamming; harsh workin...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N50/10C10N30/06C10N30/08C10N30/10C10N30/12
CPCC10M169/048C10M2201/041C10M2203/1006C10M2203/1025C10M2205/022C10M2205/024C10M2205/026C10M2205/0285C10M2205/14C10M2205/16C10M2205/18C10M2207/40C10M2209/084C10M2215/223C10N2030/06C10N2030/08C10N2030/10C10N2030/12C10N2040/32C10N2050/10C10N2030/26C10N2020/02
Inventor 耿飞潘明均蔡梦莹王姚左明明左晓兵
Owner CHANGSHU INSTITUTE OF TECHNOLOGY
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