CN105880596B - Steel wire rope is chopped into the filametntary application of bending - Google Patents
Steel wire rope is chopped into the filametntary application of bending Download PDFInfo
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1103—Making porous workpieces or articles with particular physical characteristics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
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- Powder Metallurgy (AREA)
Abstract
The filametntary application of bending is chopped into the invention discloses a kind of steel wire rope, and specially steel wire rope, which is chopped into, sinters metal polyporous material into after the compacting of bending filament and be made as the application that mechanical structure parts are directly realized by porous rigid vibration damping；The adjustable porosity for sintering metal polyporous material after the compacting of bending filament into is chopped into according to different steel wire ropes of use condition, porosity ranges are main between 20%~75%, fissipation factor is between 0.01~0.06, sintering bending filament metal polyporous material is processed into part applied to the rigid vibration damping bending filament porosity of porous material of mechanical structure progress between 20%~50%, fissipation factor is between 0.01~0.04.The metal polyporous material of the present invention can directly be processed into bearing structure part, realize the rigid vibration damping of mechanical system porous light.
Description
Technical field
Vibration damping field is applied to the present invention relates to metal polyporous material, a kind of steel wire rope is referred in particular to and is chopped into bending fiber
The application of silk.
Background technology
Metal fiber wire porous material using metal fiber wire as raw material has many advantages.Large-scale production fiber
Silk has possessed the technology of maturation, and silk/fiber can be made in most of metal including tungsten material and zirconium material, with high-strength and few
The matrix material of defect can be easy to obtain from silk material, such as, stainless steel wire, carbon steel wire, aluminum-alloy wire, copper fiber, iron
Chromium aluminum fiber and titanium fiber.The wire easily obtained not only reduces metal fiber wire porous material production cost, and it holds
Formation easy to control prepares various forms needed for metal fiber wire porous material.From the point of view of manufacture, performance and application aspect, metal is fine
Dimension silk porous material is the structure function body that a class has huge research and application potential.
Structure-function integration metal fiber wire porous material, different preparation technologies, Protean framework material makes
It has architectural characteristic in different poses and with different expressions and special performance, particularly with low cost, few defect, high intensity, the steel wire easily obtained
For the porous material of matrix, with huge research and development potentiality.Though metal fiber wire porous material can possess high intensity, energy
Realize the integration of structure function, but it is less at present used as bearing structure, be still situated between as honeycomb and foam etc. are porous
Matter is the same, and sandwich structure is made as core body, realizes lightweight vibration damping, shock resistance and energy-absorbing application, and core body and upper and lower panel
Between combination add process costs.
The present invention uses for reference the distortion of silk skeleton and mutual winding arrangement in winding porous material and 3 D weaving porous material,
With stochastic pattern filament porous material direct pressing thermal sintering technique, put forth effort on prepare raw material be easy to get and can volume production, system
The standby bending metal fiber wire porous material that technique is relatively easy, intensity is high, can directly be processed into bearing structure part and use, and
The application of mechanical system light rigidity vibration damping can be directly realized by, realizes that porous light rigid construction parts carry out mechanical system and subtracted
Shake, the rigid vibration damping of inexpensive porous light is realized, with larger engineering application value and economic value.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of steel wire rope be chopped into bending it is filametntary should
With can directly be processed into bearing structure part, realize the rigid vibration damping of mechanical system porous light.
To achieve the above object, technical scheme provided by the present invention is as follows：
Steel wire rope is chopped into the filametntary application of bending, and specially steel wire rope is sintered into after being chopped into the compacting of bending filament
Metal polyporous material is made as the application that mechanical structure parts are directly realized by porous rigid vibration damping；Should according to the difference of use condition
Steel wire rope, which is chopped into after the compacting of bending filament, sinters the adjustable porosity of metal polyporous material into, porosity ranges mainly between
20%~75%, sintering bending filament metal polyporous material is processed into part by fissipation factor between 0.01~0.06
Carry out rigid vibration damping bending filament porosity of porous material between 20%~50% applied to mechanical structure, fissipation factor between
Between 0.01~0.04.
The preparation of the metal polyporous material, comprises the following steps：
1) steel wire rope that is chopped obtains bending filament；
2) in a particular mold using static pressure method cold pressing compacting preform bending filament porous material base substrate, porosity
Between 20%~75%；
3) bending filament porous material base substrate sinters acquisition bending filament porous material, hole in vacuum sintering furnace
Rate is 20%~50%；
4) once it is cold-rolled sintered can not obtain porosity between 20%~50% bending filament porous material excessively again pressure or
Vacuum-sintering obtains porosity between 20%~50% bending filament porous material after rolling, multiple pressure or rolling；
5) steel wire rope, which is chopped into after bending filament, sinters metal polyporous material bending needed for by being machined formation into
Filament porous metal parts；
6) it is assembled to needed for mechanical system at bending filament porous metal parts locations of structures.
Step 1) in chopped rope raw material be stainless steel steel wire rope, pass through multitool rotate chopped device, be chopped stainless steel
Steel wire rope, obtains length between 5~25mm, and string diameter is that 10~500 μm of bending filament is raw material；
Step 2) in particular mold be according to the various moulds designed by required bending filament porous material concrete shape
Tool；
Step 3) in vacuum-sintering use solid-phase sintering, the vacuum-sintering under the conditions of 1130 DEG C, 1320 DEG C, 1330 DEG C
1.5h or 2.5h, sintering process are as shown in figure 1, also include resintering；
Step 4) in vacuum-sintering use solid-phase sintering, also including resintering.
The steel wire rope, which is chopped into after bending filament, sinters metal polyporous material into by being machined needed for formation
Bending filament porous metal parts are cushion block, and pad, which is mounted in, to be needed at the mechanical structure position base of vibration damping, and fixed.
The steel wire rope, which is chopped into after bending filament, sinters metal polyporous material into by being machined needed for formation
Bending filament porous metal parts are annular element, and annular element inner hole sleeve, which is mounted in, to be needed in the rotary shaft of mechanical structure of vibration damping,
Annular element outer surface is sleeved on brearing bore, and is tightly fixed.
The steel wire rope, which is chopped into after bending filament, sinters metal polyporous material into by being machined needed for formation
Bending filament porous metal parts are annular element, and annular element inner hole sleeve is on outer race, and annular element outer surface is sleeved on
Inner hole of bearing seat, and be tightly fixed.
The steel wire rope, which is chopped into after bending filament, sinters metal polyporous material into by being machined needed for formation
Bending filament porous metal parts are axle class and dish type driving parts, are installed after positioning, vibration damping during transmission motion.
The principle of the present invention：Due to there is concrete dynamic modulus, the material of material in bending filament porous material prepared by the present invention
Discontinuously, the transmission of vibration wave in the material is hindered, the fissipation factor of vibration wave conduction is big, thus can be used for absorbing and subtracted
Shake.Due to the filametntary feature of bending, bending filament mutually interts, acted in collusion, and can obtain the porous material of larger porosity
There are multiple metallurgical junction chalaza, metallurgical binding is reliable, and porous material has good power after material, and sintering between filament
Performance is learned, machine components can be processed into installed in absorbing vibration damping in mechanical structure.
The present invention compared with prior art, has the following advantages that and beneficial effect：
1st, the present invention is used for the raw material-bending filament for preparing bending filament porous material, and no surface breakdown has
Rope bending composite deformation feature, and continued under filament high strength characteristic, natural packing state, act in collusion, have
Having has multiple metallurgical junction chalaza after certain bonding strength, sintering between filament, metallurgical binding is relatively reliable, by many
The chopped steel wire rope of knife rotation can realize the inexpensive mass production of bending filament, and bending filament porous material scale can be achieved
Metaplasia is produced.
2nd, bending filament porous material prepared by the present invention has the high tensile shown in table 1 strong under the conditions of each porosity
Degree and high compression yield strength, as shown in Figures 2 and 3, compressive property curve is as shown in Figure 4 and Figure 5 for its tensile property curve.
Each porosity tensile strength of table 1 and compression yield strength
| Porosity (%) | Tensile strength (MPa) | Compression yield strength (MPa) |
| 30 | 270 | 285 |
| 46 | 113 | 106 |
| 54 | 71 | 62 |
| 62 | 42 | 51 |
| 72 | 25 | 23 |
3rd, the present invention prepare porosity between 20%~75% bending dimension/silk metal porous body fissipation factor between 0.01~
Between 0.06, as shown in table 2, its fissipation factor varies with temperature curve as shown in Fig. 6, Fig. 7 and Fig. 8.With the several frequently seen material of table 3
The fissipation factor of material is compared, and bending filament metal polyporous material has good damping capacity, at least higher by two than solid metal
The individual order of magnitude, and than its portable construction, than general plastics damping capacity also can a high upper quantity pole, it is easily old compared to it
Change, low intensity, high/low temperature and corrosive environment are difficult to be applicable, porous body has intensity designability, extreme environment is applicable
Advantage, it is seen that it is very potential that bending filament metal porous body is applied to vibration damping field as one kind damping.
The bending filament metal polyporous material fissipation factor of table 2
The various types of materials damping factor of table 3
| Material | Damping loss factor | Material | Damping loss factor |
| Steel, iron | 0.0001~0.0006 | Sandwich plate | 0.01~0.013 |
| Aluminium | 0.0001 | Brick | 0.01~0.02 |
| Copper | 0.002 | Concrete | 0.015~0.05 |
| Glass | 0.0006~0.002 | Sand (dry sand) | 0.12~0.6 |
| Plastics | 0.005 | Big damping plastic | 0.1~10.0 |
| Wood-fiber board | 0.01~0.03 | Damping rubber | 0.1~5.0 |
4th, bending filament porous part prepared by the present invention is directly as bearing structure, the bending in transmission power and motion
Filament porous part will not be deformed, and the vibration wave of structure is reduced when by bending filament porous part by absorption,
Light porous rigid vibration damping is realized, effectiveness in vibration suppression is notable.
Brief description of the drawings
Fig. 1 is preparation bending filament porous material vacuum sintering technology figure.
Fig. 2 is that porosity is 30% bending filament porous material tensile property curve.
Fig. 3 is that porosity is 46%, 54%, 66%, 72% bending filament porous material tensile property curve.
Fig. 4 is that porosity is 30%, 46%, 54% bending filament porous material compressive property curve.
Fig. 5 is that porosity is 62%, 72% bending filament porous material compressive property curve.
Fig. 6 is that porosity is 72% bending filament metal polyporous material different frequency fissipation factor-temperature variation curve.
Fig. 7 is that porosity is 66% bending filament metal polyporous material different frequency fissipation factor-temperature variation curve.
Fig. 8 is 20% porosity bending filament metal polyporous material different frequency fissipation factor-temperature variation curve.
Fig. 9 is response point B1 radial directions 300Hz frequency ranges primal system and cushioning block system vibration velocity frequency spectrum in embodiment 1
Figure.
Figure 10 is response point B1 axial direction 300Hz frequency ranges primal systems and a cushioning block system sound point vibration velocity in embodiment 1
Spectrogram.
Figure 11 vibrates speed for response point B1 in embodiment 1 is vertical to 300Hz frequency ranges primal system and cushioning block system sound point
Spend spectrogram.
Figure 12 is bending filament porous ring assembling schematic diagram in embodiment 2.
Figure 13 is response point B1 radial directions 300Hz frequency ranges primal system in embodiment 2 and adds orifice ring system vibration speed frequency
Spectrogram.
Figure 14 is response point B1 axial direction 300Hz frequency ranges primal systems and plus loop system vibration velocity spectrogram in embodiment 2.
Figure 15 is vertical to 300Hz frequency ranges primal system and plus loop system vibration velocity frequency spectrum for response point B1 in embodiment 2
Figure.
Embodiment
With reference to multiple specific embodiments, the invention will be further described.
Bending filament porous part is as follows：
Chopped device is rotated by multitool, rope footpath is chopped as the 304 of 0.8mm using 500r/min wire feed rate
(0Cr18Ni9) stainless steel steel wire rope, obtains length between 10~15mm, string diameter is that 90 μm of bending filament is raw material, will
Bending filament raw material are placed in mould, and obtaining porosity by vacuum-sintering 1.5h under the conditions of 1330 DEG C after mould static pressure is
40% and 50% two kind of bending filament porous material, the porous cushion block of bending filament and bending fiber are gone out by linear cutter
Silk two kinds of parts of porous ring.Two kinds of bending filament porous parts apply gear reduction unit transmission system vibration damping.This embodiment party
Formula middle gear decelerator transmission system is made up of motor, gearbox drive system, loadwheel, load wheeling support and pedestal, and
13 test response points are chosen altogether in each part：2 response point code names are M1, M2, gearbox drive system on motor
B1 (bearing of input shaft one end), B2 (the bearing of input shaft other end), B3 (midship shaft bearing one end), (midship shaft bearing is another by B4
End), B5 (axle goes out axle bearing one end), B6 (output shaft axle is with the other end), B7 (gear-box upper box one end), B8 is (on gear-box
The casing other end), B10 (gear cage base), B9 (loadwheel pedestal), B11 (point corresponding with B10 on pedestal).
Embodiment 1
It is between the porous cushion block insertion tooth wheel decelerator transmission system of bending filament and pedestal and fixed, realize whole system
Vibration damping.
Result of implementation
1) response point B1 adds hole cushion block system with primal system vibration velocity Frequency spectrum ratio relatively such as Fig. 9, Figure 10 and Figure 11 institute
Show.Its dynamic frequency that resonates after the cushion block of hole is radially added shown in Fig. 9 to be reduced to 4 by 10.99.38Hz is corresponding in primal system
Peak-peak 8.25mm/s amplitude attenuations are to 0.83mm/s, and vibration frequency after this vibration frequency is after hole cushion block is added
Disappear.Peak-peak is produced at 89.38Hz, its amplitude is 2.84mm/s, and only amplitude 1.89mm/s is high herein than primal system
0.95mm/s, and far smaller than primal system formant maximum amplitude.Its vibration frequency after the cushion block of hole is axially added shown in Figure 10
O'clock reduced by 11 and 174.38Hz maximum amplitudes 4.09mm/s is appeared in 7, in primal system disappear, but at 273.75Hz
Peak-peak frequency is produced, its amplitude is 1.09mm/s.It is vertical to adding after the cushion block of hole its vibration frequency o'clock by 11 shown in Figure 11
Individual reduction appears in 199.38Hz maximum amplitudes 3.38mm/s disappearances to 10, in primal system, but is produced most at 89.37Hz
Big crest frequency, its amplitude is 2.52mm/s.Remaining response point shows as the changing rule similar to B1, will not be described here.
Add 3 direction vibration frequency points after cushion block and present the reduction or transfer of varying number, maximum amplitude Frequency point is to high frequency or low
Taken place frequently raw transfer or disappearance, and vibration amplitude is decayed in various degree, and good effectiveness in vibration suppression is played to decelerator transmission system.
2) vibration severity assesses effectiveness in vibration suppression
13 response points are in three direction vibration velocity virtual values in the range of 0~1000Hz and its vibration severity such as table 4
Shown, effectiveness in vibration suppression, which is adopted, to be expressed as a percentage.Add in the cushion block system of hole 13 direction vibration velocity virtual values of response point three all
Show significantly to reduce, amount of decrease shows gear train assembly extent of vibration under the effect of porous cushion block between 30%~75%
It is greatly lowered.
Each response point vibration velocity virtual value of table 4 and vibration severity
Primal system is strong with adding hole cushion block each part of system gear decelerator transmission system and whole system vibration
The decibel of degree and vibration severity is as shown in table 5.Motor in cushioning block system, decelerator, the vibration severity difference of bearing and pedestal
For 8.96mm/s, 7.42mm/s, 8.44mm/s, 3.79mm/s, than primal system relevant portion reduce 57.05% respectively,
47.04%th, 54.59%, 52.57%；The vibration severity of whole decelerator transmission system is also subtracted by the 14.55mm/s of primal system
The as low as 7.29mm/s of cushioning block system, its effectiveness in vibration suppression has reached 49.89%.Motor, decelerator, bearing in cushioning block system
And the vibration severity decibel value of pedestal is also decreased to by 126.39dB, 122.72dB, 125.39dB, 118.05dB of primal system
119.05dB, 117.19dB, 118.53dB, 111.57dB, each reduce 7.34dB, 5.52dB, 6.86dB, 6.48dB；It is whole
The vibration severity decibel of individual decelerator transmission system is also decreased to cushioning block system by the 123.26dB of primal system
117.25dB, reduce 6dB.Vibration decay of the porous cushion block of bending silk to whole retarder system and its each part is generated
Positive role, serves preferable effectiveness in vibration suppression.
The primal system of table 5 is with adding hole cushion block system vibration earthquake intensity
3) vibration acceleration level assesses effectiveness in vibration suppression
Gear reduction unit, which is driven primal system and adds 13 response points in the range of the cushion block system 5000Hz frequency ranges of hole, to be accelerated
Vibration level is spent, as a result as shown in table 6.Add after the cushion block of hole the upward acceleration vibration level of response point M1, M2 tripartite on motor and reduce width
Degree is between 6~8dB；Pedestal response point B11, X/Y/Z about reduce 5dB, 2dB, 5dB respectively；Gear-box Shang Ge response points each side
To decreasing value between 1~3dB；The average vibration level of the acceleration in the direction of cushioning block total system three is about reduced than original total system
2dB.Porous cushion block generates good effectiveness in vibration suppression.
Table 6 is original with each response point acceleration vibration level of cushioning block system
The bending filament porous ring of embodiment 2 is assemblied between gearbox input shaft and midship shaft bearing inner ring and axle journal,
And be tightly fixed, as shown in figure 12, realize the vibration damping of whole system.
Result of implementation
1) response point B1 adds orifice ring system and relatively schemed with primal system vibration velocity Frequency spectrum ratio such as Figure 13, Figure 14 and Figure 15 institute
Show.
There is peak-peak 8.252mm/s in 99.37Hz in radial direction primal system as shown in figure 13, adds common herein after orifice ring
Shake disappearance, produce that new peak-peak is 3.04mm/s, about primal system at 88.13Hz 37%.It is axially former shown in Figure 14
All vibration frequencies after beginning system 174.36Hz almost totally disappeared mistake after orifice ring is added, extremely indivedual vibration frequencies that do not disappear
Amplitude also decays to micron order；New vibration frequency is occurred in that at 88.13Hz, but it is 1.43mm/s that its amplitude is smaller.Figure 15 institutes
Show and vertically disappeared to maximum amplitude 5.61mm/s at primal system 99.38Hz, vibration frequency point largely disappears thereafter, does not disappear
Vibration frequency amplitude is also decayed；Peak-peak Frequency point moves forward to 88.13Hz, and amplitude is 2.91mm/s, this Frequency point
Vibration frequency amplitude is largely decayed before.Remaining response point shows as the changing rule similar to B1, does not go to live in the household of one's in-laws on getting married herein
State.Add orifice ring has similar vibration damping form to adding hole cushion block：Vibration frequency point disappears, vibration amplitude decay, most significantly
It is worth Frequency point reach.
2) vibration severity assesses effectiveness in vibration suppression
13 response points of orifice ring system, three direction vibration velocity in the range of 0~1000Hz is added in primal system and bearing
As shown in table 7, effectiveness in vibration suppression, which is adopted, to be expressed as a percentage for virtual value and each response point vibration severity.Plus each response point three in loop system
Direction vibration velocity virtual value significantly reduces, between 20~65%.
7 13 response point vibration velocity virtual values of table and vibration severity
Vibration of the primal system with adding motor in orifice ring system, gear-box, load wheeling support, pedestal and whole system is strong
Degree and its decibel value are as shown in table 8.The vibration severity for adding decelerator in orifice ring system, motor, bearing and pedestal is respectively
8.34mm/s, 13.34mm/s, 12.20mm/s, 4.72mm/s, reduce 38.99% respectively than primal system corresponding component,
35.62%th, 34.37%, 40.93%；The vibration severity of whole decelerator transmission system is decreased to by primal system 14.55mm/s
Orifice ring system 9.02mm/s is added, its effectiveness in vibration suppression has reached 38.01%.Add motor in orifice ring system, decelerator, bearing and
The vibration severity decibel value of pedestal is also subtracted by 126.39dB, 122.72dB, 125.39dB, 118.05dB of primal system accordingly
As low as 118.24dB, 122.56dB, 121.73dB, 113.84dB, reduce 4.29dB, 3.82dB, 3.66dB, 4.57dB respectively；
The vibration severity decibel of whole decelerator transmission system is decreased to the 119.10dB for adding loop system by the 123.26dB of primal system,
Which reduce 4.15dB.
The primal system of table 8 is with adding orifice ring system vibration earthquake intensity
3) vibration acceleration level assesses effectiveness in vibration suppression
Add 9 response point acceleration vibration level results on orifice ring system 5000Hz frequency range internal gear casings as shown in table 9.It is many
Orifice ring is added at the corresponding axle journal of B1, B2, B3, B4 response point, and four response points respectively have different degrees of to acceleration vibration level
Reduction, X is to vibration level difference between 3~6dB, and Y-direction is close main between 1~2dB with Z-direction vibration level difference, and the vibration of speed shaft bearing end subtracts
It is small, thus coupled structural vibration also reduces therewith, response point is each on visible vibration output shaft, upper box and pedestal in table 9
Also be obviously reduced to vibration level, on pedestal X/Y to show about 5dB and Z-direction to show about 3dB vibration levels poor.Plus rim gear wheel casing X,
The average vibration level of Y, Z three-dimensional acceleration is respectively 101.12dB, 109.92dB, 106.28dB vibration level more corresponding than primal system
105.70dB, 113.02dB, 108.16dB have reduced about 5dB, 3dB, 2dB.It can be seen that, considered from acceleration vibration level, bending silk is more
Orifice ring also plays good effectiveness in vibration suppression to whole gearbox system.
Table 9 is original with adding each response point acceleration vibration level of orifice ring system
(dB)
Embodiment 3
The present embodiment difference from Example 2 is：By bending filament porous ring be assembled to input shaft, jackshaft,
Between output shaft bearing inner ring and axle journal.
Embodiment 4
The present embodiment difference from Example 2 is：By bending filament porous ring be assembled to input shaft, jackshaft,
Output shaft bearing outer ring.
Embodiment 5
The present embodiment difference from Example 2 is：By steel wire rope be chopped into bending filament mould it is compressing after
Sinter metal polyporous material into, then by being machined the bending filament porous metal parts needed for being formed for axle class and dish type
Driving parts, are installed after positioning, absorbing vibration damping during transmission motion.
Examples of implementation described above are only the preferred embodiments of the invention, and the implementation model of the present invention is not limited with this
Enclose, therefore the change that all shape, principles according to the present invention are made, it all should cover within the scope of the present invention.
Claims (7)
1. steel wire rope is chopped into the filametntary application of bending, it is characterised in that：It is chopped into for steel wire rope after the compacting of bending filament
Sinter metal polyporous material into and be made as the application that mechanical structure parts are directly realized by porous rigid vibration damping；According to use condition
The different steel wire ropes are chopped into the adjustable porosity for sintering metal polyporous material after the compacting of bending filament into, porosity ranges master
Will be between 20%~75%, fissipation factor is between 0.01~0.06, by sintering bending filament metal polyporous material processing
Be applied to mechanical structure into part and carry out rigid vibration damping bending filament porosity of porous material between 20%~50%, loss because
Son is between 0.01~0.04.
2. steel wire rope according to claim 1 is chopped into the filametntary application of bending, it is characterised in that described metal porous
The preparation of material, comprises the following steps：
1) steel wire rope that is chopped obtains bending filament；
2) in a particular mold using static pressure method cold pressing compacting preform bending filament porous material base substrate, porosity between
20%~75%；
3) bending filament porous material base substrate sinters acquisition bending filament porous material in vacuum sintering furnace, and porosity is
20%~50%；
4) once the cold-rolled sintered porosity that can not obtain is pressed or rolled again excessively between 20%~50% bending filament porous material,
Vacuum-sintering obtains porosity between 20%~50% bending filament porous material after multiple pressure or rolling；
5) steel wire rope, which is chopped into after bending filament, sinters metal polyporous material bending fiber needed for by being machined formation into
Silk porous metal parts；
6) it is assembled to needed for mechanical system at bending filament porous metal parts locations of structures.
3. steel wire rope according to claim 2 is chopped into the filametntary application of bending, it is characterised in that：
Step 1) in chopped rope raw material be stainless steel steel wire rope, pass through multitool and rotate chopped device, be chopped stainless steel steel wire
Rope, obtains length between 5~25mm, and string diameter is that 10~500 μm of bending silk is raw material；
Step 2) in particular mold be according to the various moulds designed by required bending filament porous material concrete shape；
Step 3) in vacuum-sintering use solid-phase sintering, under the conditions of 1130 DEG C, 1320 DEG C, 1330 DEG C vacuum-sintering 1.5h or
2.5h, also including resintering；
Step 4) in vacuum-sintering use solid-phase sintering, also including resintering.
4. steel wire rope according to claim 3 is chopped into the filametntary application of bending, it is characterised in that：The steel wire rope is short
It is cut into the bending filament porous metals zero for sintering metal polyporous material after bending filament into needed for by being machined formation
Part is cushion block, and pad, which is mounted in, to be needed at the mechanical structure position base of vibration damping, and fixed.
5. steel wire rope according to claim 3 is chopped into the filametntary application of bending, it is characterised in that：The steel wire rope is short
It is cut into the bending filament porous metals zero for sintering metal polyporous material after bending filament into needed for by being machined formation
Part is annular element, and annular element inner hole sleeve, which is mounted in, to be needed in the rotary shaft of mechanical structure of vibration damping, and annular element outer surface is sleeved on axle
Endoporus is held, and is tightly fixed.
6. steel wire rope according to claim 3 is chopped into the filametntary application of bending, it is characterised in that：The steel wire rope is short
It is cut into the bending filament porous metals zero for sintering metal polyporous material after bending filament into needed for by being machined formation
Part is annular element, and annular element inner hole sleeve is on outer race, and annular element outer surface is sleeved on inner hole of bearing seat, and tight fit is solid
It is fixed.
7. steel wire rope according to claim 3 is chopped into the filametntary application of bending, it is characterised in that：The steel wire rope is short
It is cut into the bending filament porous metals zero for sintering metal polyporous material after bending filament into needed for by being machined formation
Part is axle class and dish type driving parts, is installed after positioning, vibration damping during transmission motion.
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| CN108723108A (en) * | 2017-04-13 | 2018-11-02 | 周照耀 | A kind of manufacturing method and application reducing fluid to the Vented metal shell structure of moving object resistance |
| CN111334726B (en) * | 2020-03-27 | 2021-10-19 | 广东工业大学 | Metal fiber porous material prepared from aluminum alloy wires with bending structures and preparation method and application thereof |
| CN117483769A (en) * | 2023-11-24 | 2024-02-02 | 艾氢技术(苏州)有限公司 | Method for manufacturing metal particle block beneficial to chemical reaction and metal particle block |
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| JPS5499013A (en) * | 1978-01-21 | 1979-08-04 | Kobe Steel Ltd | Filling method for composite material in high temperature high pressure compression treatment |
| GB2160895B (en) * | 1984-06-27 | 1987-06-17 | Pall Corp | Production of porous sintered metal filters |
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