Nanomer vibration-reducing noise-reducing self-repairing material and its prepn process

A kind of lubricating material, vibration reduction and noise reduction technology, applied in the direction of lubricating composition, base material, petroleum industry, etc., can solve the problems of increased friction coefficient recovery, difficulty in applying a variety of friction pairs, long repair time, etc. Friction coefficient and load-carrying capacity, effect of reducing vibration and noise

Inactive Publication Date: 2006-03-01
JIANGSU MOLEDN PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned nano-lubricating materials have a good shock-absorbing and noise-reducing effect, it is difficult to apply a variety of friction pairs, the hardness of the self-healing layer produced is not high, it is easy to be scratched in the subsequent friction and wear, and the cost of use is high. question
Although the superfine ore powder self-healing agent can form a high-hardness self-healing protective layer, it is only suitable for steel-steel friction pairs, the repair time is long (1-100 hours), and the friction coefficient recovery under oil lubrication conditions is increased (0.03 ~0.06) and little improvement in the tribological properties of lubricating media

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0045] Example 1: First, after crushing 10g of serpentine and ball milling to about 30 microns, adding 0.5g of sodium hexametaphosphate and 78.9g of 15W base oil to weigh and prepare, ball milling the ore powder to 80 nanometers by a planetary ball mill, adding Nano Ca(OH) 2 3g, nano Fe 3 o 4 5g, Nano-Fe 2 o 3 2g, T504 0.6g was further ball milled for 120min to obtain the lubricant A. Weigh 8.1g of metal nano-copper powder and 0.9g of nickel powder, and prepare metal nano-copper-nickel composite powder with an average particle size of 54nm by multi-gun DC arc plasma evaporation method, weigh 2.5g of oleic acid and add it to 83.9g of 15W base oil, Add metal nano-copper-nickel composite powder again, be that 2000 rev / min high-speed dispersers disperse 30 minutes with rotating speed, add castor oil 3g, MoDDP 0.5g, nanometer Ce in the metal nano-dispersion liquid of gained 2 o 3 0.1g, T154 0.5g, T202 0.5g, grind in a ball mill for 50 minutes to obtain lubricant B;

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example 2

[0047] Example 2: a small amount of nano-lubricating material A is coated in advance on the rolling bearing raceway, and then adding the dry powder of nano-lubricating material A of 0.08~0.2% in bearing grease (the low-noise grease produced by Tianjin Lubricating Grease Co., Ltd.), The model of the test bearing is 6203-2RZ. Before the test, there are obvious man-made wounds and scratches on the surface of the bearing steel ball and the groove. The measured value of the vibration acceleration of the bearing during the original operation is 40dB. The measured value of vibration acceleration is 34.5dB. When the content of mixed nanomaterials is at the low limit and high limit, the vibration acceleration of the bearing is reduced to 36 and 37dB.

example 3

[0048] Example 3: First, after crushing 16g of serpentine and ball milling to about 30 microns, adding 3g of sodium hexametaphosphate, 1g of silane, and 62g of 15W base oil to the serpentine powder and 4g of magnesium oxide were weighed and prepared, and the After the ore powder is ball-milled to 80 nanometers, add nano-CaCO 3 5g, nano graphite powder 4g, nano Fe 2 o 3 3g, nano-Ni powder 1g, T202 1g to obtain the lubricant A after further ball milling for 120min.

[0049]According to the amount of 0.086 grams of nano ore powder per liter of lubricating oil, add it to the engine lubricating oil of the Passat car for the test. The car has driven 5,000 kilometers before the test, and the original noise measured at a distance of 30 cm from the engine is 82dB. After injecting the material After about 20 minutes, the noise was re-measured at 81dB, and the vibration was reduced. After driving 800 kilometers, the measured noise is 79dB under the same conditions, and the fuel savin...

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PUM

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Abstract

The nanometer vibration-reducing and noise-reducing self repairing material is prepared with nanometer level metal powder and natural ore powder as main material and through adding several kinds of supplementary material and certain technological process, and is added into lubricating oil or ultrasonic medium as high performance repair material. The present invention features that the high performance repair material can create high hardness self-repairing lubricating film fast on the surface of metal friction pairs to regulate the interval of the friction pair, reduce friction coefficient, raise bearing capacity, leveling the friction surface, reduce vibration and noise caused by the unbalance, friction and damage of the moving machine parts, and prolong the service life of the machine parts. The present invention may be used widely in improving performance of mechanical friction parts.

Description

Technical field: [0001] The invention relates to the field of development and application of mechanical engineering and novel nanomaterials, in particular to the use of self-repairing nanometer lubricating materials to reduce vibration and noise generated by mechanical moving parts under oil (grease) lubrication conditions and improve the life of related parts. Background technique: [0002] Vibration and noise are one of the important public hazards that accompany the development of modern industry. It not only deteriorates the working environment of the man-machine, but also the multi-resonant peak response caused by the broadband random excitation can also cause the failure of electronic devices, the failure of instruments and meters, and the structural fatigue of mechanical parts, which can lead to catastrophic consequences in severe cases. Statistical results show that 80% of accidents and equipment damage in the machine manufacturing industry are caused by resonance, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M103/04C10M101/00
Inventor 匡庶张振忠郭航王宙吴燕
Owner JIANGSU MOLEDN PETROCHEM
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