CN1393537A

CN1393537A - Process for preparing solid lubricant

Info

Publication number: CN1393537A
Application number: CN 01113744
Authority: CN
Inventors: 边晋榆
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-03
Filing date: 2001-07-03
Publication date: 2003-01-29

Abstract

A friction-reducing antifouling solid lubricant is prepared from expanded graphite (40-80 wt.%) and faky graphite (20-60) through mixing, putting in pressure container, pressurizing by 5-15 kg for 30-60 min for gaseous puffing, and then putting in electric puffing barrel for repeated electric puffing at 200-600 deg.C by 100-200 A, and after homogenization, silicate and sulfur oxide are wiped out.

Description

A kind of preparation method of solid lubricant

Technical field

The present invention relates to the preparation method of a kind of antifriction, antifouling solid lubricant.Especially a kind of is the preparation method of the lubricant of raw material with graphite, is applicable to the oiling system of metallurgy, mine, machinery, chemical industry, vehicle, vessel etc.

Background technology

In recent years, along with the progress of science and technology, the continual renovation of mechanical means was regenerated, and environmental protection, problem such as energy-conservation receive much concern, and gear oil, engine wet goods lubricating oil are had higher requirement.It is that the lubricating oil of additive does not carry out desulfurization, the desiliconization hydrochlorate is handled that existing market is sold with graphite, and in use residual sulphur can cause environmental pollution at last, and residual silicate can influence lubricant effect, makes the oil quality instability.

Summary of the invention

The preparation method who the purpose of this invention is to provide a kind of antifriction, antifouling solid lubricant.This method adopts the electric puffing technique of desulfurization, desiliconization hydrochlorate, and the proportion that obtains lubricated product reduces, do not precipitate and harden, and has reached the effect of saving oil and reducing environmental pollution.

Preparation method of the present invention is as follows: with expanded graphite 40-80% (by weight percentage, as follows), crystalline flake graphite 20-60% is mixed into material, puts into pressurized vessel pressurization 5-15Kg, after static 30-60 minute, opening reducing valve, to carry out gas expanded, puts into the electric expanded bucket of being made up of electrode after the collection, and current control is at 100-200A, temperature is controlled at 200-600 ℃, it is expanded to shock by electricity repeatedly with the crawl method, treat that it evenly after, silicate, sulfur oxide disappear.Material after expanded is crushed to the 3-100 micron, and it is expanded to shock by electricity once more, adds detergent-dispersant additive afterwards, is warming up to 200 ℃, and constant temperature 1 hour is cooled to room temperature again, promptly gets this lubricant.

Advantage of the present invention:

This lubricant integrates the advantage of solid and fluent material, form brand-new and complete electronics adsorption film, filling and repairing, fall the resistance antifriction, heat radiation scale removal, sealing anti-are let out, bumper and absorbing shock and anti-ly suppress, protection against corrosion, carbon deposit lubricating system not.This antifriction, stain control agent and lubricating oil adapted, the new lubricant that obtains, existing car is used rate of economizing gasoline and is reached more than 10%, trepan rate of economizing gasoline on probation reaches 17.1%, prolong machine oil work-ing life, drain period can prolong one to three times than conventional oil, prolongs one times of engine overhaul mileage, also reduces mechanicalness noise 8-10 decibel simultaneously.Test through energy utilization monitoring center of the Ministry of Communications, vehicle torsional moment contrast factor Km=1.04, power contrast factor Kp=1.03, the automobile acceleration characteristics improves 13.6% vehicle exhaust carbon monoxide and the carboritride quantity discharged reduces by 58% and 38.3% respectively than like product, reduces by 96.5% and 77.4% than the national standard limit value.

Embodiment

Embodiment 1, the expanded graphite of 60kg and the crystalline flake graphite of 40kg are made into raw material, put into pressurized vessel, pressure adds to 10Kg, leave standstill after 30 minutes reducing valve is opened, it is expanded that the aligning escaper carries out gas, puts into the electric expanded bucket of being made up of electrode again and shock by electricity expanded repeatedly with the crawl method, its temperature is controlled at 400 ℃, and current control is at 100A.Material after expanded is pulverized again, and at least 5 microns are shocked by electricity expandedly once more, when temperature is elevated to 100 ℃, add detergent-dispersant additive, reheat to 200 ℃, and 1 hour postcooling of constant temperature can be applied to the lubricating oil additive of standard machinery to room temperature.

Embodiment 2, and the expanded graphite of 40kg and the crystalline flake graphite of 60kg are made into raw material, press the operation of embodiment 1 method, promptly get the lubricating oil additive that is applied to heavy-duty machinery.

Embodiment 3, and the crystalline flake graphite of 80kg expanded graphite and 20kg is made into raw material, press the operation of embodiment 1 method, promptly get the lubricating oil additive of application engine and precision optical machinery.

Claims

1, a kind of preparation method of solid lubricant is characterized in that: with expanded graphite 40-80% (by weight percentage), crystalline flake graphite 20-60% mixes, and is made into material; Prepared materials is put into pressurized vessel add 5-15Kg, after static 30-60 minute, the valve mouth is aimed at escaper open, it is expanded to carry out gas; Put into the electric expanded bucket of being made up of electrode after the collection, current control is at 100-200A, and temperature is controlled at 200-600 ℃, and it is expanded to shock by electricity repeatedly with the crawl method, treat that it evenly after, its silicate, sulfur oxide disappearance.

2, the preparation method of solid lubricant according to claim 1 is characterized in that: the material after expanded is crushed to the 3-100 micron, and it is expanded to shock by electricity once more; Add detergent-dispersant additive, be warming up to 200 ℃, constant temperature 1 hour is cooled to room temperature again.