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Lubricating grease material for crane jib and preparation method of lubricating grease material

A technology of lubricating grease and cranes, which is applied in the field of lubricating grease materials and preparations of crane booms, can solve the problems of lowering the bearing capacity of booms, hidden dangers of production safety, and wear of booms, and achieves reduced friction, good low-temperature start-up performance, Effect of excellent stability and friction and wear properties

Inactive Publication Date: 2015-02-18
WUXI FEITIAN GREASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

?With the rapid development of modern industry, cranes are needed to carry and lift huge heavy objects in the process of infrastructure construction. However, cranes are often operated under load, and the continuous load-bearing and movement of the boom will produce certain In particular, high heat and high friction will be generated during operation. When the temperature and friction reach a certain height, the bearing capacity of the boom will be reduced, and even a large degree of wear and tear of the boom will occur to damage its structure. , which brings hidden dangers to production safety

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Weigh 80kg of 150BS base oil, 8kg of graphene, 2kg of aluminum nitride, 1.5kg of antimony trioxide, 1.5kg of diisooctyl diphenylamine and 0.5kg of tartaric acid. Stirring rate, stirring for 0.5 hours;

[0030] (2) Add 12kg of epoxy acrylic acid, 12kg of polyamideimide resin and 10kg of 2-ethylhexyl phosphate mono(2-ethylhexyl) ester to the product of step 1, and disperse it ultrasonically at 85°C;

[0031] (3) Adjust the pH value of the product in step 2 to 7.8, and perform filtration and degassing to obtain a grease material for crane booms.

[0032] After the obtained lubricating grease material for the crane arm is sprayed on the steel sheet, under the conditions of 128 N load, 180 rpm rotation speed, and 600s storage time, the small pin-on-disk friction and wear test is carried out on the sprayed steel sheet, and the measured The average coefficient of friction and wear results were 0.242 and 0.022 g, respectively.

Embodiment 2

[0034] (1) Weigh 95kg of 100# engine oil, 7kg of graphene, 4kg of aluminum nitride, 1kg of antimony trioxide, 1kg of diisooctyldiphenylamine and 1kg of tartaric acid, at 65°C, with a stirring rate of 600 rpm, Stir for 1 hour;

[0035] (2) Add 12kg of epoxy acrylic acid, 10kg of polyamideimide resin and 12kg of 2-ethylhexyl phosphate mono(2-ethylhexyl) ester to the product of step 1, and disperse it ultrasonically at 85°C;

[0036] (3) Adjust the pH value of the product in step 2 to 7.8, and perform filtration and degassing to obtain a grease material for crane booms.

[0037] After the obtained lubricating grease material for the crane arm is sprayed on the steel sheet, under the conditions of 128 N load, 180 rpm rotation speed, and 600s storage time, the small pin-on-disk friction and wear test is carried out on the sprayed steel sheet, and the measured The average coefficient of friction and wear results were 0.267 and 0.017 g, respectively.

Embodiment 3

[0039] (1) Weigh 85kg of 150BS base oil, 8kg of graphene, 3kg of aluminum nitride, 2kg of antimony trioxide, 2kg of diisooctyldiphenylamine and 1kg of tartaric acid, at 85°C, with a stirring rate of 600 rpm, Stir for 2 hours;

[0040] (2) Add 18kg of epoxy acrylic acid, 15kg of polyamideimide resin and 8kg of 2-ethylhexyl phosphate mono(2-ethylhexyl) ester to the product of step 1, and disperse it ultrasonically at 85°C;

[0041] (3) Adjust the pH value of the product in step 2 to 7.8, and perform filtration and degassing to obtain a grease material for crane booms.

[0042] After the obtained lubricating grease material for the crane arm is sprayed on the steel sheet, under the conditions of 128 N load, 180 rpm rotation speed, and 600s storage time, the small pin-on-disk friction and wear test is carried out on the sprayed steel sheet, and the measured The average coefficient of friction and wear results were 0.281 and 0.029 g, respectively.

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Abstract

The invention discloses a lubricating grease material for a crane jib and a preparation method of the lubricating grease material for the crane jib. The lubricating grease material is prepared from components in parts by weight as follows: 80-95 parts of base oil, 12-18 parts of epoxy acrylate, 10-15 parts of polyamide-imide resin, 8-12 parts of 2-ethylhexylphosphoric acid mono (2-ethylhexyl) ester, 5-8 parts of graphene, 2-4 parts of aluminum nitride, 0.5-4 parts of an antioxidant and 0.5-1 part of tartaric acid. The method comprises steps as follows: (1) weighing and evenly mixing 80-95 parts of the base oil, 5-8 parts of the graphene, 2-4 parts of the aluminum nitride, 0.5-4 parts of the antioxidant and 0.5-1 part of the tartaric acid; (2) adding 12-18 parts of the epoxy acrylate, 10-15 parts of the polyamide-imide resin and 8-12 parts of the 2-ethylhexylphosphoric acid mono (2-ethylhexyl) ester to a product of the step (1), and performing ultrasonic dispersion at the temperature of 85 DEG C; (3) adjusting the pH value of a product of the step (2), and performing filtration and degasification to obtain the lubricating grease material for the crane jib.

Description

technical field [0001] The invention belongs to the field of lubricating grease materials, in particular to a lubricating grease material used for crane arms and a preparation method thereof. Background technique [0002] Grease is a semi-fluid and semi-solid substance with a certain viscosity. On the lubricating surface, it can prevent fluid or solid particles from leaking from adjacent joint surfaces and prevent external impurities such as dust and moisture from invading the interior of the machine and equipment, thereby protecting the equipment. works well. ?With the rapid development of modern industry, cranes are needed to carry and lift huge heavy objects in the process of infrastructure construction. However, cranes often operate under load, and the boom of the boom will produce certain load-bearing and moving processes. In particular, high heat and high friction will be generated during operation. When the temperature and friction reach a certain height, the bearing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10M169/06C10M177/00C10N50/10
Inventor 张群敏许华平
Owner WUXI FEITIAN GREASE