Heat-resistant grease for gap type overhead conductor as well as preparation method and application thereof

An overhead wire, gap-type technology, applied in the field of grease, can solve the problems of weakening resistance to external erosion, reducing the service life of power lines, limitations, etc.

Inactive Publication Date: 2020-08-04
郑州市欧普士科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the use of heat-resistant grease for gap-type overhead conductors by cable manufacturers is still relatively limited. They use domestic anti-corrosion grease products instead, which are prone to excessive oil

Method used

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  • Heat-resistant grease for gap type overhead conductor as well as preparation method and application thereof

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preparation example Construction

[0041] In the present invention, the preparation method of the polyurea-based composite thickener preferably includes the following steps: under normal pressure, add 1 / 2 base oil, p-toluidine and cyclohexylamine to the fat-making kettle, start mixing and heating , and add the adhesive; mix 1 / 2 base oil and diphenylmethane-4,4'-diisocyanate in an automatic mixer and heat; slowly add the isocyanate-base oil mixture into the fat-making kettle, mix with The organic amine-base oil mixture is fully reacted under stirring to obtain a thickener. In the present invention, the heating and mixing temperature of the 1 / 2 base oil and p-toluidine and cyclohexylamine is preferably 120~140°C; the 1 / 2 base oil and diphenylmethane-4,4'-bis The heating and mixing temperature of the isocyanate is preferably 80-120°C; the heating and mixing temperature of the two mixtures is preferably 150-200°C.

[0042] In the present invention, based on the mass parts of the base oil, the raw materials for pre...

Embodiment 1

[0062] Put 80 parts of mixed base oil, 6 parts of p-toluidine and 18 parts of cyclohexylamine into the fat-making kettle, start mixing and heating, add 3 parts of adhesive (random polypropylene) at 60°C, mix and heat to 130°C; 80 parts of mixed base oil and 36 parts of diphenylmethane-4,4'-diisocyanate are mixed and heated in an automatic mixer, and the mixture is heated to 100°C; slowly add the isocyanate-base oil mixture into the fat-making kettle, mix with The organic amine-base oil mixture is fully reacted under stirring, mixed and heated to 180°C, and continued to stir for 30 minutes; after fat formation, then add 1.6 parts of antirust agent (neutral barium dinonyl naphthalene sulfonate) and 1.7 parts of antioxidant , 3.5 parts of oil separation inhibitor (modified nano-silicon dioxide), continue to heat to about 250 ° C for 2 hours, then add 6 parts of solid filler (mica powder), and then perform cyclic shearing, homogenization and degassing treatment, Obtain heat-resist...

Embodiment 2

[0065] Put 82 parts of mixed base oil, 6.5 parts of p-toluidine and 16 parts of cyclohexylamine into the fat-making kettle, start mixing and heating, add 3.5 parts of adhesive (random polypropylene) at 60°C, mix and heat to 130°C; 82 parts of mixed base oil and 35 parts of diphenylmethane-4,4'-diisocyanate are mixed and heated in an automatic mixer, and the mixture is heated to 100°C; slowly add the isocyanate-base oil mixture into the fat-making kettle, and mix with The organic amine-base oil mixture is fully reacted under stirring, mixed and heated to 180°C, and continued to stir for 30 minutes; after fat formation, then add 1.8 parts of antirust agent (neutral barium dinonyl naphthalene sulfonate) and 1.9 parts of antioxidant , 3.8 parts of oil separation inhibitor (modified nano-silicon dioxide), continue to heat to about 250 ° C for 2 hours, then add 6.5 parts of solid filler (mica powder), and then carry out cyclic shearing, homogenization and degassing treatment, Obtain...

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Abstract

The invention relates to the technical field of lubricating grease, and provides heat-resistant grease for a gap type overhead conductor, the heat-resistant grease is prepared from the following raw materials in parts by mass: 155-180 parts of base oil, 52 to 60 parts of a thickening agent, 1.5 to 2.5 parts of an antirust agent, 3-4.5 parts of an oil separation inhibitor, 1.5 to 2.5 parts of an antioxidant, 3-5 parts of an adhesive and 6-8 parts of a solid filler, wherein the thickening agent is a polyurea-based composite thickening agent and is prepared from diphenylmethane-4, 4 '-diisocyanate, p-toluidine and cyclohexylamine, the oil separation inhibitor comprises modified nano silicon dioxide, and the adhesive comprises atactic polypropylene. The heat-resistant grease for the gap type overhead conductor, provided by the invention, has excellent wide-temperature applicability and good salt mist resistance, water spraying resistance and aging resistance.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a heat-resistant grease for gap-type overhead wires and a preparation method and application thereof. Background technique [0002] With the rapid development of my country's economy, especially the economy in the southern coastal areas, the amount of gap-type overhead conductors used for overhead power lines has increased sharply. Encountered various corrosion damages, seriously affecting the safety of power transmission. In order to meet the anti-corrosion and lubrication protection for gap-type overhead wires, high requirements are put forward for the grease's wide temperature applicability, salt spray resistance, water spray resistance and anti-aging performance. [0003] At present, the use of heat-resistant grease for gap-type overhead conductors by cable manufacturers is still relatively limited. They use domestic anti-corrosion grease products instead, which ar...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10M177/00C10N50/10C10N40/32C10N30/08C10N30/10C10N30/12C10N10/04
CPCC10M169/00C10M177/00C10M2201/10C10M2201/103C10M2203/1006C10M2205/024C10M2207/026C10M2209/1023C10M2215/065C10M2217/0456C10M2219/044
Inventor 乔传威于坦杜晓彬梁浩勇李卫东
Owner 郑州市欧普士科技有限公司
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