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Preparation method of antioxidant dry film lubricating agent

A dry film lubricant and anti-oxidation technology, applied in lubricating compositions, additives, petroleum industry, etc., can solve the problems of easy oxidation and poor extreme pressure lubrication performance, reduce consumption, improve high temperature resistance, and avoid surface hardening Effect

Inactive Publication Date: 2019-07-23
李辉
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Problems solved by technology

[0005] The technical problem mainly solved by the present invention is aimed at the poor extreme pressure lubrication performance of the dry film lubricant during rapid extrusion, and the main component of the dry film lubricant is molybdenum disulfide or graphite powder, which is easily oxidized in the atmosphere. A kind of preparation method of anti-oxidation dry film lubricant

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  • Preparation method of antioxidant dry film lubricating agent

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preparation example Construction

[0028] Preparation of aluminum citrate xerogel: in parts by weight, 30 parts of citric acid solution with a mass fraction of 20% and 5 parts of aluminum nitrate are mixed in a beaker, the beaker is placed in a water bath, and the temperature is raised to 70 ℃, stirred for 40 minutes to obtain aluminum citrate gel, put the aluminum citrate gel in an oven, heat up to 100°C, and dry for 6 hours to obtain aluminum citrate xerogel, which was stored in a sealed bag.

[0029] Preparation of carbon-coated aluminum nanoparticles: Take 15g of aluminum citrate xerogel, 32g of colloidal graphite, and 50g of Hexogen, mix them into a high-pressure airtight container, and fill the high-pressure airtight container with nitrogen and argon with a volume ratio of 3:1 gas, detonated with a lead wire, and stood still for 10 minutes to collect carbon-coated aluminum nanoparticles.

[0030] Preparation of active molybdenite powder: Take 200g molybdenite ore and put it into a high-temperature furnace...

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Abstract

The invention belongs to the technical field of preparation of lubricating agents, and particularly relates to a preparation method of an antioxidant dry film lubricating agent. The preparation methodcomprises the steps that xerogel, oleic acid and hexogen are produced to be explosive, carbon-coated aluminum nano particles are obtained through detonation, microbial oil, ethyl palmitate and lithium amide are mixed to obtain an esterified product, and finally a biological lubricating oil crude product is distilled to obtain biological lubricating oil. Rapeseed oleic acid and azelaic acid serveas raw materials to prepare the antioxidant dry film lubricating agent, the substance ingredient of the frictional surface is changed after carbon-coated aluminum nano particles are blended in the lubricating oil, thus the friction reduction and abrasion resistant effects are achieved, and the extreme pressure lubricating property is improved. The lubricating effect is enhanced by utilizing the biological grease, the transformation rate from lignin sulfonic acid calcium to calcite crystal form is increased through the high polarity of the biological lubricating oil, the high temperature resistance of the lubricating agent is improved, the microbial lubricating oil is subjected to oxidation to generate high temperature antioxidant groups under the factors of high temperature and oxygen generated by friction, and the antioxidant dry film lubricating agent has the wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of lubricant preparation, and in particular relates to a preparation method of an anti-oxidation dry film lubricant. Background technique [0002] During the operation of mechanical equipment, wear between parts will inevitably occur. In order to maintain the lubricity of the parts, a lubricating layer is usually coated on the surface of the running-in and worn parts to maintain the normal working state of the parts. Therefore, the superior performance Lubricants play an important role in solving the problem of wear between parts. Lubricants are widely used on the friction surfaces of molds and mechanical parts to reduce friction and wear of materials. Compared with conventional grease lubrication, dry film lubricants can be effectively used under environmental conditions such as high temperature, high load, and high vacuum. Dry film lubricant is a kind of solid lubricant. It uses adhesives to adhere powde...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10M159/12C10N30/06C10N30/10
CPCC10M159/12C10M169/00C10M2201/056C10M2207/00C10M2207/302C10M2221/041C10N2030/06C10N2030/10C10N2010/04
Inventor 李辉
Owner 李辉
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