CN1441037A

CN1441037A - Solid-liquid suspension as lubricant oil

Info

Publication number: CN1441037A
Application number: CN 03111938
Authority: CN
Inventors: 刘曼一
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-10
Filing date: 2003-03-10
Publication date: 2003-09-10

Abstract

The solid-liquid suspension as lubricant oil is prepared with lubricant oil in 99.5-99.9 wt% and graphited nano pyrolytic carbon particle in 0.1-0.5% and through homogenization. It has the features of lowering noise, reducing vibration and wear, saving fuel oil, prolonging the service life of moving parts and lubricant oil, and improving tail gas.

Description

Solid-liquid suspendible body lubricating oil

Affiliated technical field

The invention belongs to technical field of lubricating oil, especially a kind of solid-liquid suspendible body lubricating oil.

Background technology

Continuous development along with science and technology, the technical requirements of Motor vehicles, movable machinery under the incompatible high speed of lubricating oil under the existing liquid state, high temperature, heavy burden, the high pressure conditions, especially at the friction interface because the scarce trace that manufacturing deficiency or wearing and tearing cause, liquid lubricating oil can't remedy, so people are are constantly researching and developing more efficiently lubricant to improve the performance of liquid lubricating oil.The patent No. a kind of rolling mill lubricant agent special of rolling section bar that has been 4808324 U.S. Patent Publication, it still has certain lubrication in the moving parts temperature up to time more than 1000 ℃, but can only be used on the rolling mill, and range of application is subjected to certain limitation.The patent No. a kind of rail lubricant that has been 4634545 U.S. Patent Publication, its major ingredient is a kind of incomplete mixture of graphite and oily Jie's carrier, this patent is a kind of lubricant of developing for rail specially, so its range of application also is subjected to certain limitation.A kind of soliquid friction improving agent that U.S. Cromwell orgnlzatlon company produces, this improving agent mainly is to be added in the engine motor oil, in order to improve its lubricity, it is that material mixing such as natural graphite by 0.5 μ m form, because the low lubricity that directly influences it of the purity of natural graphite itself, if the employing flake graphite, though purity can improve, the particulate monomer of flake graphite during less than 10 μ m its section do not have lubricating property.

Summary of the invention

Task of the present invention is to provide a kind of solid-liquid suspendible body lubricating oil, it can have enough lubricating contact matter to keep the friction interface under the dynamic operation condition of various harshnesses, avoid critical friction, make friction drop to inferior limit, even under no oily dynamic condition, can guarantee within a certain period of time that also parts do not damage.

For realizing above-mentioned task, the technical scheme that the present invention takes is: with greying pyrolysis pure carbon nanoparticle is raw material, with the finished lube is medium, form through the homogeneous mixing, its weight content is respectively finished lube and accounts for 99.50%-99.90%, and greying pyrolysis pure carbon nanoparticle accounts for 0.1%-0.5%.

The particle diameter scope of described greying pyrolysis pure carbon nanoparticle is 20 nanometers-400 nanometers.

Described finished lube is GB gasoline engine oil or diesel engine oil or automotive gear oil.

Described greying pyrolysis pure carbon nanoparticle acquisition methods is: adopting carbon pole and industry burnt is raw material, carbon pole is ground into the particle that diameter is 5-10mm, industrial pulverized coke accounts for 40% by carbon pole after being broken into the particle that diameter is 3-5mm, industry Jiao accounts for and makes the wide 150mm that is after 60% weight ratio is mixed, thick 250mm, the rectangular parallelepiped electric furnace heating element of long 5m, be heated to 3000 ℃-3800 ℃ in the energising of two ends of this electric furnace heating element and carry out greying, purifying and pyrolysis, obtain greying pyrolysis pure carbon crystal grain, its purity is 98%-99.99%, it is 7 o'clock through pure water spray irrigation to pH value again, be placed in the stoving oven with centrifuge dewatering and dry, again through comminution by gas stream, obtain suspensoid with trap after the multistage classification, this suspensoid just is a greying pyrolysis pure carbon nanoparticle of the present invention.

The invention has the beneficial effects as follows, owing in finished lube, add greying pyrolysis pure carbon nanoparticle, to change into " the pure carbon nanoparticle is separated in the solid graphite heat-transmission " for the lubricating oil of lubricated main body with " oil " be lubricated main body, because it has very strong tack, self lubricity and perviousness, it can be at a high speed at movable machinery, heavy burden, keep enough lubricating contact matter under the high temperature extreme pressure condition, critical friction can not appear, therefore, it has the reduction noise, stabilized (steady-state) speed, reduce vibrations and wearing and tearing, save fuel oil, prolong the work-ing life of moving parts and lubricating oil, improve the characteristics of tail gas.

Embodiment

Below will be further described the specific embodiment of the present invention according to embodiment.

Embodiment 1

With greying pyrolysis pure carbon nanoparticle is raw material, the gasoline engine oil that with the model is SD is a medium, its weight content is that gasoline engine oil accounts for 99.9%, greying pyrolysis pure carbon nanoparticle accounts for 0.1%, its homogeneous mixing method is: the pump housing opening for feed 300mm place at the pumping main pipe line of gasoline engine oil production line terminal adds a reducing tee, utilize pipe negative pressure after making it be compounded in the gasoline engine oil in the greying pyrolysis pure carbon nanoparticle raw material upstream line, to send in the storage tank in the lump together with gasoline engine oil, after used oil pipe is sent back to, send into once more again in the storage tank, so carry out 3 circulations and can finish mixing and form solid-liquid suspendible body gasoline engine oil lubricating oil.

Embodiment 2

With greying pyrolysis pure carbon nanoparticle is raw material, the diesel engine oil that with the model is CB is a medium, its weight content is that gasoline engine oil accounts for 99.5%, greying pyrolysis pure carbon nanoparticle is 0.5%, its homogeneous mixing method is: the pump housing opening for feed 300mm place at the pumping main pipe line of diesel engine oil production line terminal adds a reducing tee, utilize pipe negative pressure after making it be compounded in the diesel engine oil in the greying pyrolysis pure carbon nanoparticle raw material upstream line, to send in the storage tank in the lump together with diesel engine oil, after used oil pipe is sent back to, send into once more again in the storage tank, so carry out 2 circulations and can finish mixing and form solid-liquid suspendible body diesel engine oil lubricating oil.

Embodiment 3

With greying pyrolysis pure carbon nanoparticle is raw material, the automotive gear oil that with the model is 75W is a medium, its weight content is that automotive gear oil accounts for 99.90%, greying pyrolysis pure carbon nanoparticle is 0.1%, its homogeneous mixing method is: the pump housing opening for feed 300mm place at the pumping main pipe line of gear of vehicle lubricating oil processing line terminal adds a reducing tee, send in the storage tank in the lump together with automotive gear oil after utilizing pipe negative pressure to make it be compounded in the automotive gear oil greying pyrolysis pure carbon nanoparticle raw material upstream line, after used oil pipe is sent back to, send into once more again in the storage tank, so carry out 5 circulations and can finish mixing and form solid-liquid suspendible body automotive gear oil lubricating oil.

Greying pyrolysis pure carbon nanoparticle described in the foregoing description obtain the method that all adopts the present invention above-mentioned.

Below further specify its beneficial effect for example:

Example 1 adds embodiment 1 described solid-liquid suspendible body gasoline engine lubricant oil and compares with common gasoline engine lubricant oil in Toyota's pick up 2400 passenger-cargo carriage sumps, its noise is reduced to 54 decibels by 66 decibels, and oil consumption is reduced to 8.7 liters by 100 kilometers 10 liters.

Example 2 adds embodiment 2 described solid-liquid suspendible body diesel lubrication oils and compares with common diesel lubrication oil in 8 tons of trucks of east wind semi-mounted, and its oil consumption is reduced to 18 liters by 100 kilometers 19.25 liters, and its noise and tail gas also have remarkable improvement.

Claims

1, a kind of solid-liquid suspendible body lubricating oil, with greying pyrolysis pure carbon nanoparticle is raw material, is medium with the finished lube, forms through the homogeneous mixing, it is characterized in that its weight content is respectively finished lube and accounts for 99.5%-99.9%, greying pyrolysis pure carbon nanoparticle accounts for 0.1%-0.5%.

2, solid-liquid suspendible body lubricating oil according to claim 1, the particle diameter scope that it is characterized in that greying pyrolysis pure carbon nanoparticle is 20 nanometers-400 nanometers.

3, solid-liquid suspendible body lubricating oil according to claim 1, the method that it is characterized in that described greying pyrolysis pure carbon nanoparticle is: adopting carbon pole and industry burnt is raw material, carbon pole is ground into the particle that diameter is 5-10mm, industrial pulverized coke accounts for 40% by carbon pole after being broken into the particle that diameter is 3-5mm, industry Jiao accounts for and makes the wide 150mm that is after 60% weight ratio is mixed, thick 250mm, the rectangular parallelepiped electric furnace heating element of long 5m, be heated to 3000 ℃-3800 ℃ in the energising of two ends of this electric furnace heating element and carry out greying, purifying and pyrolysis, obtain greying pyrolysis pure carbon crystal grain, its purity is 98%-99.99%, it is 7 o'clock through pure water spray irrigation to pH value again, be placed in the stoving oven with centrifuge dewatering and dry, again through comminution by gas stream, obtain suspensoid with trap after the multistage classification, this suspensoid just is a greying pyrolysis pure carbon nanoparticle of the present invention.