CN101101023A - Tungsten molybdenum alloy self-lubricating bearing - Google Patents
Tungsten molybdenum alloy self-lubricating bearing Download PDFInfo
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- CN101101023A CN101101023A CNA2007100120342A CN200710012034A CN101101023A CN 101101023 A CN101101023 A CN 101101023A CN A2007100120342 A CNA2007100120342 A CN A2007100120342A CN 200710012034 A CN200710012034 A CN 200710012034A CN 101101023 A CN101101023 A CN 101101023A
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- lubricating bearing
- molybdenum alloy
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Abstract
This invention relates to tungsten-molybdenum metal self-lubricating bearing. It is composed of base and tungsten-molybdenum metal self-lubricating bearing material embedded in the base. The said tungsten-molybdenum metal self-lubricating bearing material includes the following raw material: tungsten disulfide 15-20, molybdenum disulfide 15-25, boron nitride 6-10, polytetrafluor ethylene 20-26 and bronze powder 25-32. Silicate is or is not added. The base is quality carbon steel or aluminum bronze. The tungsten-molybdenum metal self-lubricating bearing material embedded in the base is embedded belt or embedded column. At the process of machine running, the powder released from the lubricant of self-lubricating bearing material is adsorbed on the frictional surface of two metals. Under high temperature, sulfide decomposes and forms a layer of sulfur alloy lubricating membrane. The rigidity of sulfur alloy and toughness of bearing base material form the diphase structure. This invention achieves maintenance-free when operating.
Description
Technical field
The present invention relates to the lubrication technical field of bearing, particularly a kind of tungsten molybdenum alloy self-lubricating bearing.
Background technique
Lubricated and the solid lubrication of lubricated minute fluid of bearing.Fluid lubrication is widely used in the bearing of operation under the normal temperature condition.The bearing of fluid lubrication moves under high temperature condition grease loss, coking can take place, and fluid lubrication lost efficacy, and axle, bearing seizure and heavy wear take place.Up to the present, many patent applications about solid lubrication have been arranged, patent of invention ZL200510041149.5 provides a kind of self-lubricating bearing material and preparation method thereof, commented the patent application situation of self-lubricating bearing material in detail, and a kind of thermoplastic polyimide-based self-lubricating bearing material is provided.Its actual use condition is unknown.
Summary of the invention
The purpose of this invention is to provide a kind of non-maintaining tungsten molybdenum alloy self-lubricating bearing that under high temperature, heavy duty, middling speed operating mode, need not oiling.
The objective of the invention is to realize by following technical proposals.
Tungsten molybdenum alloy self-lubricating bearing of the present invention is characterized in that being made up of the tungsten molybdenum alloy self-lubricating bearing material of matrix and this matrix of embedding, and described tungsten molybdenum alloy self-lubricating bearing material comprises the raw material component of following weight percentage:
Tungsten disulfide 15-20
Molybdenum disulfide 15-25
Boron nitride 6-10
Teflon 20-26
Bronze powder 25-32.
Described tungsten molybdenum alloy self-lubricating bearing material also can adopt anti-vermiculizer silicate, and comprise it being the raw material component of following weight percentage this moment:
Tungsten disulfide 16-20
Molybdenum disulfide 18-22
Boron nitride 6-10
Teflon 22-25
Bronze powder 25-29
Silicate 3-5 as anti-vermiculizer.
The raw material component of the preferred following weight percentage of described tungsten molybdenum alloy self-lubricating bearing material:
Tungsten disulfide 19
Molybdenum disulfide 20
Boron nitride 9
Teflon 24
Bronze powder 28.
When adopting the silicate of anti-vermiculizer, the raw material component of the preferred following weight percentage of described tungsten molybdenum alloy self-lubricating bearing material:
Tungsten disulfide 18
Molybdenum disulfide 20
Boron nitride 8
Teflon 23
Bronze powder 27
Silicate 4 as anti-vermiculizer.
Described matrix is Fine Steel Casting iron or aluminum bronze.
Described embedded to body tungsten molybdenum alloy self-lubricating bearing material is for embedding tape or embedding cylinder.
Adopt the machinery of tungsten molybdenum alloy self-lubricating bearing of the present invention, in running, the micro mist that oiling agent in the tungsten molybdenum alloy self-lubricating bearing material discharges is adsorbed on the friction surface of two metals, sulphide cracking under high-temperature effect, friction surface at metal forms one deck sulphur alloy lubricating film, and " rigidity " of sulphur alloy and " toughness " of bearing body material have constituted the tungsten molybdenum alloy self-lubricating bearing of " two-phase " structure.This bearing can realize need not oiling, non-maintaining operation under 450 degrees centigrade, linear velocity 2.8m/s, load 360MPa operating mode, the grease that has thoroughly solved the bearing of fluid lubrication runs off, coking, fluid lubrication lost efficacy, and the problem of axle, bearing seizure and heavy wear takes place.
In tungsten molybdenum alloy self-lubricating bearing of the present invention, the selection that pays particular attention to solid lubricant be mixed, improve the quality of sulphur alloy lubricating film.
In tungsten molybdenum alloy self-lubricating bearing of the present invention, the selection that pays particular attention to solid lubricant be mixed, improve the quality of sulphur alloy lubricating film.
The allotment of high low value: the density of molybdenum disulfide is 4.7, allocates mutually with the density 7.4 of tungsten disulfide, has increased the density of solid lubricant; The density of teflon is 2.2, allocates mutually with the density 8.9 of bronze powder, has increased " rigidity " of solid lubricant;
Critical line approaching: the thermostability of teflon is 260 degrees centigrade, with the thermostability of boron nitride is 900 degrees centigrade of allotments mutually, make 500 degrees centigrade of the thermostability trends of oiling agent, be close with 349 degrees centigrade of molybdenum disulfide, 400 degrees centigrade temperature critical line of tungsten disulfide;
Mutual affinity: teflon has good chemical stability, thermostability and firm charcoal chain structure, the mutual affinities of powdery lubriation material such as the same molybdenum disulfide of energy, tungsten disulfide, the solid lubricant that is constituted has hundred characteristics that folding is continuous, hammer is tried in vain to break to pieces;
Anti-load carrying capacity coupling: the anti-load carrying capacity of boron nitride is 170MPa, and the anti-load carrying capacity of teflon is 4.2MPa, with molybdenum disulfide 2745MPa, tungsten disulfide 2800MPa allotment, has increased the anti-load carrying capacity of solid lubricant;
Release property is to prolong the bearing key in working life uniformly, and teflon contains " (CF
2The basic chain link of)-"; because this chain link is to be in " vitreous state " at 327 degrees centigrade; improve uniform temperature again; chain link is opened; the solid lubrication powder that is mixed is surrounded wherein; when the friction surface of two metals contacts, solid lubricant discharges micro mist equably, sulphide cracking under high-temperature effect, friction surface at metal forms one deck sulphur alloy lubricating film, its micro mist separates two metal surfaces (having formed sulphur alloy lubricating film) of relative friction again for medium, when the lubricating film local failure, only need a small amount of micro mist to mend into lubricating film.
In prescription, added French chalk, strengthened anti-the wriggling ability of solid lubricant, further prolonged the working life of tungsten molybdenum alloy self-lubricating bearing as anti-vermiculizer.
Tungsten molybdenum alloy self-lubricating bearing of the present invention need not oiling, non-maintaining, long service life, friction factor under high temperature, heavy duty, middling speed operating mode low.
Description of drawings
Fig. 1 is the structural representation of several bearings of the present invention.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
As shown in Figure 1, tungsten molybdenum alloy self-lubricating bearing of the present invention is characterized in that being made up of the tungsten molybdenum alloy self-lubricating bearing material of matrix 1 and this matrix of embedding, and described tungsten molybdenum alloy self-lubricating bearing material comprises the raw material component of following weight percentage:
Tungsten disulfide 15-20
Molybdenum disulfide 15-25
Boron nitride 6-10
Teflon 20-26
Bronze powder 25-32.
Described tungsten molybdenum alloy self-lubricating bearing material also can adopt the silicate of anti-vermiculizer, comprises the raw material component of following weight percentage this moment:
Tungsten disulfide 16-20
Molybdenum disulfide 18-22
Boron nitride 6-10
Teflon 22-25
Bronze powder 25-29
Silicate 3-5 as anti-vermiculizer.
As an embodiment, described tungsten molybdenum alloy self-lubricating bearing material comprises the raw material component of following weight percentage:
Tungsten disulfide 19
Molybdenum disulfide 20
Boron nitride 9
Teflon 24
Bronze powder 28.
As another embodiment, when adopting the silicate of anti-vermiculizer, described tungsten molybdenum alloy self-lubricating bearing material comprises the raw material component of weight percentage down:
Tungsten disulfide 18
Molybdenum disulfide 20
Boron nitride 8
Teflon 23
Bronze powder 27
Silicate 4 as anti-vermiculizer.
Described matrix 1 is Fine Steel Casting iron or aluminum bronze.
Described embedded to body tungsten molybdenum alloy self-lubricating bearing material is for embedding tape 2 or embedding cylinder 3.
Fig. 1 a is depicted as and embeds tape 2; Fig. 1 b is depicted as the embedding cylinder; Fig. 1 c, Fig. 1 d, Fig. 1 e and Fig. 1 f show the structural representation of four kinds of different tungsten molybdenum alloy self-lubricating bearings that embed cylinder 3 respectively.
The tungsten molybdenum alloy self-lubricating bearing that the foregoing description is made, under specific operating mode, in the time of 100-200 degree centigrade, lubricating film is isabelline, and in the time of 200-400 degree centigrade, lubricating film is roasting blue look, and in the time of 400-450 degree centigrade, lubricating film is an avy blue.Change in color has reflected that micro mist that solid lubricant discharges intermolecularly oozes altogether at the friction surface of metal, affinity, by quantitative change to qualitative change.Sulphur alloy lubricating film is relevant with temperature; Friction factor is subjected to again about the sulfur-bearing micro mist institute of sulphur alloy lubricating film, storage.The friction factor of tungsten molybdenum alloy self-lubricating bearing under the operating mode of normal temperature-450 degree centigrade is 0.04-0.08; Limit PV value is 31MPam/s; The highest adaptive temperature is 450 degrees centigrade; Maximum line velocity V is 2.8m/s; Rated load be 315N/mm
2
Claims (6)
1, a kind of tungsten molybdenum alloy self-lubricating bearing is characterized in that being made up of the tungsten molybdenum alloy self-lubricating bearing material of matrix and this matrix of embedding, and described tungsten molybdenum alloy self-lubricating bearing material comprises the raw material component of following weight percentage:
Tungsten disulfide 15-20
Molybdenum disulfide 15-25
Boron nitride 6-10
Teflon 20-26
Bronze powder 25-32.
2, tungsten molybdenum alloy self-lubricating bearing according to claim 1 is characterized in that described tungsten molybdenum alloy self-lubricating bearing material comprises the raw material component of following weight percentage:
Tungsten disulfide 16-20
Molybdenum disulfide 18-22
Boron nitride 6-10
Teflon 22-25
Bronze powder 25-29
Silicate 3-5 as anti-vermiculizer.
3, tungsten molybdenum alloy self-lubricating bearing according to claim 1 is characterized in that described tungsten molybdenum alloy self-lubricating bearing material comprises the raw material component of following weight percentage:
Tungsten disulfide 19
Molybdenum disulfide 20
Boron nitride 9
Teflon 24
Bronze powder 28.
4, tungsten molybdenum alloy self-lubricating bearing according to claim 1 is characterized in that described tungsten molybdenum alloy self-lubricating bearing material comprises the raw material component of following weight percentage:
Tungsten disulfide 18
Molybdenum disulfide 20
Boron nitride 8
Teflon 23
Bronze powder 27
Silicate 4 as anti-vermiculizer.
5, tungsten molybdenum alloy self-lubricating bearing according to claim 1 is characterized in that described matrix is Fine Steel Casting iron or aluminum bronze.
6, tungsten molybdenum alloy self-lubricating bearing according to claim 1 is characterized in that described embedded to body tungsten molybdenum alloy self-lubricating bearing material is for embedding tape or embedding cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100120342A CN101101023A (en) | 2007-07-07 | 2007-07-07 | Tungsten molybdenum alloy self-lubricating bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100120342A CN101101023A (en) | 2007-07-07 | 2007-07-07 | Tungsten molybdenum alloy self-lubricating bearing |
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| CN101101023A true CN101101023A (en) | 2008-01-09 |
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| CNA2007100120342A Pending CN101101023A (en) | 2007-07-07 | 2007-07-07 | Tungsten molybdenum alloy self-lubricating bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103026087A (en) * | 2010-05-25 | 2013-04-03 | 西门子公司 | Component with a sliding surface for bearing another component, and method for producing a sliding layer |
| CN110293221A (en) * | 2019-08-09 | 2019-10-01 | 黄威豪 | A kind of manufacturing method of novel oil-free bearing |
-
2007
- 2007-07-07 CN CNA2007100120342A patent/CN101101023A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103026087A (en) * | 2010-05-25 | 2013-04-03 | 西门子公司 | Component with a sliding surface for bearing another component, and method for producing a sliding layer |
| US8967869B2 (en) | 2010-05-25 | 2015-03-03 | Siemens Aktiengesellschaft | Component with a sliding surface for bearing another component, and method for producing a sliding layer |
| CN103026087B (en) * | 2010-05-25 | 2016-06-08 | 西门子公司 | The parts with the sliding surface for supporting another parts and the method manufacturing sliding layer |
| CN110293221A (en) * | 2019-08-09 | 2019-10-01 | 黄威豪 | A kind of manufacturing method of novel oil-free bearing |
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