CN110305377A - A kind of vibration isolator and preparation method thereof - Google Patents
A kind of vibration isolator and preparation method thereof Download PDFInfo
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- CN110305377A CN110305377A CN201910478490.9A CN201910478490A CN110305377A CN 110305377 A CN110305377 A CN 110305377A CN 201910478490 A CN201910478490 A CN 201910478490A CN 110305377 A CN110305377 A CN 110305377A
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Abstract
The present invention relates to vibration isolator technical fields, and in particular to a kind of vibration isolator and preparation method thereof.The present invention provides a kind of vibration isolator, the raw material including following parts by weight: 100 parts and magnetic fillers 5-20 parts of liquid rubber.The present invention also provides a kind of preparation methods of vibration isolator described above, include the following steps: 1) under the action of impressed pressure and externally-applied magnetic field, and the mixture of liquid rubber and magnetic fillers is carried out preforming processing, obtains preforming rubber；2) the preforming rubber for obtaining step 1) carries out sulfidization molding processing, obtains the vibration isolator.Vibration isolator provided by the invention, under the action of externally-applied magnetic field, the microstructure of magnetic fillers will do it fine tuning, makes its orientation arrangement, to form " damping-constraining " structure on microcosmic, and then substantially increases the damping isolation performance of vibration isolator.
Description
Technical field
The present invention relates to vibration isolator technical fields, and in particular to a kind of vibration isolator and preparation method thereof.
Background technique
With the rapid development of modern industry, construction industry and transportation, noise and vibration pollution is got worse.Noise
The normal work and life of people is influenced, is detrimental to health, it is dirty with water pollution, atmosphere pollution, solid waste at present
Dye and referred to as today's society four major public hazards.Noise is generated by the vibration of machinery equipment, and vibration influences mechanical machining accuracy
And product quality, acceleration mechanical fatigue damage, shorten mechanical service life, and the noise caused by vibrating also endangers the strong of people
Health.Therefore, to vibration equipment carry out control it is necessary to, common vibration control method be damping and vibration isolation, vibration isolation be to pass through
It is different with the intrinsic frequency of vibratory equipment and damping ratio from the position that equipment is connected directly, and inhibit Vibration propagation；The work of damping
With the damping action that principle is by material itself or structure, converts vibrational energy into heat and reach vibration damping purpose.Rubber
It is a kind of special viscoelastic material, response lag has good damping characteristic in stress, and itself also has lower
Intrinsic frequency, thus often be fabricated to vibration isolator or vibration isolator be used to vibration damping.
The existing method for improving rubber material damping capacity has very much, as blending and modifying, modification by copolymerization, filler filling change
Property, form inierpeneirating network structure etc..However filler is arranged irregularly in rubber material in the above method, the resistance for vibration isolator
Buddhist nun's anti-vibration performance improves limited.
Summary of the invention
It is an object of the invention to overcome the problems, such as that the damping isolation of vibration isolator in the prior art is ineffective, to provide
A kind of vibration isolator and preparation method thereof.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of vibration isolator, the raw material including following parts by weight: 100 parts and magnetic fillers 5-20 parts of liquid rubber.
Preferably, the magnetic fillers are 10-15 parts.
Preferably, the liquid rubber is selected from diene series liquid rubber, olefin-based liquid rubber, polyurethane series liquid rubber
One or more of glue, silicon systems liquid rubber, fluorine system liquid rubber；
Preferably, the liquid rubber is selected from liquid nitrile rubber, liquid styrene butadiene rubber, liquid butyl rubber, LSR type liquid
It is one or more of in body silicon rubber.
Preferably, the magnetic fillers are one-dimensional linear or two-dimensional slice stratiform magnetic fillers.
Preferably, the magnetic fillers are selected from one or more of nickel coated graphite powder, nickel packet carbon fiber, flake iron powder.
Preferably, the raw material further includes rubber chemicals.
Preferably, the additional amount of the rubber chemicals is 2-10 parts by weight.
Preferably, the rubber chemicals include the vulcanizing agent of 1-5 parts by weight and the promotor of 1-5 parts by weight.In the present invention
In the type of rubber chemicals is not specifically limited, including but not limited to vulcanizing agent and promotor.
Preferably, the vulcanizing agent includes sulphur or peroxide vulcanizing agent；The promotor includes 2- mercapto benzo
Thiazole, tetramethylthiuram disulfide, N- ring group -2-[4-morpholinodithio sulfenamide, diphenylguanidine, dimethyl dithiocarbamic acid
One or more of zinc, hexa, ethylene thiourea.
The present invention also provides a kind of preparation methods of vibration isolator described above, include the following steps:
1) under the action of impressed pressure and externally-applied magnetic field, the mixture of liquid rubber and magnetic fillers is carried out preforming
Processing, obtains preforming rubber；
2) the preforming rubber for obtaining step 1) carries out sulfidization molding processing, obtains the vibration isolator.
Preferably, the externally-applied magnetic field is parallel magnetic field, the magnetic induction intensity of the externally-applied magnetic field be 0.1-1.0 it is special this
It draws, the impressed pressure is 3-8 megapascal, time of the mixture of the liquid rubber and magnetic fillers in the externally-applied magnetic field
It is 5-20 minutes.
Preferably, further include the steps that rubber chemicals are added into the mixture of the liquid rubber and magnetic fillers.
Preferably, the preforming processing step are as follows: be placed in the mixture of liquid rubber, magnetic fillers and rubber chemicals
In mold, then pre-molding under the action of impressed pressure and externally-applied magnetic field.
Preferably, the curing temperature is 150-173 DEG C.
Beneficial effects of the present invention:
1) present invention provides a kind of vibration isolator, the raw material including following parts by weight: 100 parts of liquid rubber and magnetic fillers 5-
20 parts.Vibration isolator provided by the invention, under the action of externally-applied magnetic field, the microstructure of magnetic fillers will do it fine tuning, make
It is orientated arrangement, to form " damping-constraining " structure on microcosmic, and then substantially increases the damping isolation performance of vibration isolator.
2) present invention provides a kind of vibration isolator, and further, the liquid rubber is selected from diene series liquid rubber, olefin-based
One or more of liquid rubber, polyurethane series liquid rubber, silicon systems liquid rubber, fluorine system liquid rubber；Preferably, described
Liquid rubber is a kind of or several in liquid nitrile rubber, liquid styrene butadiene rubber, liquid butyl rubber, LSR type liquid silastic
Kind.The magnetic fillers are selected from one or more of nickel coated graphite powder, nickel packet carbon fiber, flake iron powder.The present invention passes through upper
The mutual cooperation for stating specific several components further improves the damping isolation performance of vibration isolator.
3) present invention provides a kind of preparation method of vibration isolator described above, includes the following steps: 1) in impressed pressure
Under the action of externally-applied magnetic field, the mixture of liquid rubber and magnetic fillers is subjected to preforming processing, obtains preforming rubber；
2) the preforming rubber for obtaining step 1) carries out sulfidization molding processing, obtains the vibration isolator.The present invention passes through in liquid rubber
Magnetic fillers are added in glue, is acted on by externally-applied magnetic field and adjusts magnetic fillers microstructure, makes its orientation arrangement, is formed on microcosmic
" damping-constraining " structure, to substantially increase the damping isolation performance of vibration isolator.This method is easy to operate, for vibration isolator
The promotion of damping isolation performance work well.
4) present invention provides a kind of preparation method of vibration isolator described above, and further, the externally-applied magnetic field is flat
Row magnetic field, the magnetic induction intensity of the externally-applied magnetic field are 0.1-1.0 tesla, and the pressure is 3-8 megapascal, the liquid rubber
It is 5-20 minutes with the time of the mixtures of magnetic fillers in the externally-applied magnetic field.The present invention is in above-mentioned magnetic induction intensity, pressure
Power and under conditions of the time, further increases the promotion effect of the damping isolation performance of vibration isolator.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram for the vibration isolator that the embodiment of the present invention 1 obtains；
Fig. 2 is the stereoscan photograph for the vibration isolator that the embodiment of the present invention 1 obtains；
Fig. 3 is the stereoscan photograph for the vibration isolator that the embodiment of the present invention 2 obtains；
Fig. 4 is the stereoscan photograph for the vibration isolator that the embodiment of the present invention 3 obtains.
Appended drawing reference in Fig. 1: 1, rubber material；2, magnetic fillers；3, constrained damping structure.
Specific embodiment
There is provided following embodiments is to preferably further understand the present invention, it is not limited to the best embodiment party
Formula is not construed as limiting the contents of the present invention and protection scope, anyone under the inspiration of the present invention or by the present invention and its
The feature of his prior art is combined and any and identical or similar product of the present invention for obtaining, all falls within of the invention
Within protection scope.
Specific experiment step or condition person are not specified in embodiment, according to the literature in the art described routine experiment
The operation of step or condition can carry out.Reagents or instruments used without specified manufacturer, being can be by commercially available acquisition
Conventional reagent product.
Liquid nitrile rubber -40 described in following embodiment of the present invention is purchased from Shanghai low coverage International Trading Company Ltd, institute
Liquid nitrile rubber -26 is stated purchased from Nanjing Jia Rui Chemical trade Co., Ltd；The liquid styrene butadiene rubber SN-307R is purchased from Foshan
Shi Cheng New Energy Technology Co., Ltd.；The liquid butyl rubber model SH-1WJ, winning great plastic material purchased from Dongguan City has
Limit company；The LSR type liquid silastic model LSR-9650A/B is purchased from Guangdong Chao Te new material Co., Ltd.
Embodiment 1
Present embodiments provide a kind of vibration isolator, including the following raw material:
The preparation method of vibration isolator described above, includes the following steps:
(1) nickel coated graphite powder filler, sulphur and hexa are added in liquid nitrile rubber -40, are sufficiently stirred
Uniformly, it is then placed in the bubble extracted out in liquid nitrile rubber in vacuum tank, obtains nickel coated graphite powder filler, sulphur, six methylenes
The mixture of urotropine and liquid nitrile rubber -40；
(2) mixture of nickel coated graphite powder filler, sulphur, hexa and liquid nitrile rubber -40 is poured into poly-
In the mold of tetrafluoroethene preparation, the pressure of 5 megapascal is kept in mold, it is 0.1 tesla that mold, which is put into magnetic induction intensity,
10min is kept in parallel magnetic field environment, is carried out pre-molding processing, is made filler segregation in magnetic field, obtain preforming rubber；
(3) the preforming rubber that step (2) obtains is put into progress sulfidization molding processing in vulcanizing press together with mold,
150 DEG C of curing temperature, vulcanization time is the technique sulfurizing time t90 determined by vulcameter, and sulfidization molding after treatment is unloaded
Mould inner pressure is removed, the vibration isolator can be obtained.
Fig. 1 is the schematic diagram for the vibration isolator that the present embodiment obtains, as shown in Figure 1, in the obtained vibration isolator of the present embodiment,
The magnetic fillers form constrained damping structure as shown in the figure in rubber material, substantially increase the damping isolation of vibration isolator
Performance.
Embodiment 2
Present embodiments provide a kind of vibration isolator, including the following raw material:
The preparation method of vibration isolator described above, includes the following steps:
(1) nickel packet carbon fiber filler, sulphur and hexa are added in liquid nitrile rubber -26, are sufficiently stirred
Uniformly, it is then placed in the bubble extracted out in liquid nitrile rubber in vacuum tank, obtains nickel packet carbon fiber filler, sulphur, six methylenes
The mixture of urotropine and liquid nitrile rubber -26；
(2) mixture of nickel packet carbon fiber filler, sulphur, hexa and liquid nitrile rubber -26 is poured into poly-
In the mold of tetrafluoroethene preparation, the pressure of 5 megapascal is kept in mold, it is 0.3 tesla that mold, which is put into magnetic induction intensity,
10min is kept in parallel magnetic field environment, is carried out pre-molding processing, is made filler segregation in magnetic field, obtain preforming rubber；
(3) the preforming rubber that step (2) obtains is put into progress sulfidization molding processing in vulcanizing press together with mold,
160 DEG C of curing temperature, vulcanization time is the technique sulfurizing time t90 determined by vulcameter, and sulfidization molding after treatment is unloaded
Mould inner pressure is removed, the vibration isolator can be obtained.
Embodiment 3
Present embodiments provide a kind of vibration isolator, including the following raw material:
The preparation method of vibration isolator described above, includes the following steps:
(1) nickel packet carbon fiber filler, sulphur and hexa are added in liquid styrene butadiene rubber SN-307R, sufficiently
It stirs evenly, is then placed in the bubble extracted out in liquid styrene butadiene rubber in vacuum tank, obtains nickel packet carbon fiber filler, sulphur, six
The mixture of methenamine and liquid styrene butadiene rubber SN-307R；
(2) mixture of nickel packet carbon fiber filler, sulphur, hexa and liquid styrene butadiene rubber SN-307R are fallen
In the mold for entering polytetrafluoroethylene (PTFE) preparation, the pressure of 5 megapascal is kept in mold, by mold be put into magnetic induction intensity be 0.8 it is special this
10min is kept in the parallel magnetic field environment of drawing, is carried out pre-molding processing, is made filler segregation in magnetic field, obtain preforming rubber
Glue；
(3) the preforming rubber that step (2) obtains is put into progress sulfidization molding processing in vulcanizing press together with mold,
165 DEG C of curing temperature, vulcanization time is the technique sulfurizing time t90 determined by vulcameter, and sulfidization molding after treatment is unloaded
Mould inner pressure is removed, the vibration isolator can be obtained.
Embodiment 4
Present embodiments provide a kind of vibration isolator, including the following raw material:
The preparation method of vibration isolator described above, includes the following steps:
(1) flake iron powder filler, sulphur and ethylene thiourea are added in liquid butyl rubber, are stirred, so
It is put into the bubble extracted out in liquid butyl rubber in vacuum tank afterwards, obtains flake iron powder filler, sulphur, ethylene thiourea and liquid
The mixture of butyl rubber；
(2) mixture of flake iron powder filler, sulphur, ethylene thiourea and liquid butyl rubber is poured into polytetrafluoroethylene (PTFE)
In the mold of preparation, the pressure of 8 megapascal is kept in mold, and mold is put into the parallel magnetic field that magnetic induction intensity is 1.0 teslas
5min is kept in environment, is carried out pre-molding processing, is made filler segregation in magnetic field, obtain preforming rubber；
(3) the preforming rubber that step (2) obtains is put into progress sulfidization molding processing in vulcanizing press together with mold,
170 DEG C of curing temperature, vulcanization time is the technique sulfurizing time t90 determined by vulcameter, and sulfidization molding after treatment is unloaded
Mould inner pressure is removed, the vibration isolator can be obtained.
Embodiment 5
Present embodiments provide a kind of vibration isolator, including the following raw material:
The preparation method of vibration isolator described above, includes the following steps:
(1) nickel packet carbon fiber, sulphur and ethylene thiourea are added in liquid styrene butadiene rubber SN-307R, are sufficiently stirred
It is even, it is then placed in the bubble extracted out in liquid styrene butadiene rubber SN-307R in vacuum tank, obtains nickel packet carbon fiber, sulphur, ethylidene
The mixture of thiocarbamide and liquid styrene butadiene rubber SN-307R；
(2) mixture of nickel packet carbon fiber, sulphur, ethylene thiourea and liquid styrene butadiene rubber SN-307R are poured into poly- four
In the mold of vinyl fluoride preparation, the pressure of 3 megapascal is kept in mold, it is the flat of 0.5 tesla that mold, which is put into magnetic induction intensity,
20min is kept in row magnetic field environment, is carried out pre-molding processing, is made filler segregation in magnetic field, obtain preforming rubber；
(3) the preforming rubber that step (2) obtains is put into progress sulfidization molding processing in vulcanizing press together with mold,
173 DEG C of curing temperature, vulcanization time is the technique sulfurizing time t90 determined by vulcameter, and sulfidization molding after treatment is unloaded
Mould inner pressure is removed, the vibration isolator can be obtained.
Embodiment 6
Present embodiments provide a kind of vibration isolator, including the following raw material:
The preparation method of vibration isolator described above, includes the following steps:
(1) nickel packet carbon fiber, sulphur and ethylene thiourea are added in LSR type liquid silastic, are stirred, so
It is put into the bubble extracted out in LSR type liquid silastic in vacuum tank afterwards, obtains nickel packet carbon fiber, sulphur, ethylene thiourea and LSR
The mixture of type liquid silastic；
(2) mixture of nickel packet carbon fiber, sulphur, ethylene thiourea and LSR type liquid silastic is poured into polytetrafluoroethyl-ne
In the mold of alkene preparation, the pressure of 6 megapascal is kept in mold, and mold is put into the parallel magnetic that magnetic induction intensity is 0.2 tesla
12min is kept in the environment of field, pre-molding processing is carried out, makes filler segregation in magnetic field, obtain preforming rubber；
(3) the preforming rubber that step (2) obtains is put into progress sulfidization molding processing in baking oven, vulcanization temperature together with mold
169 DEG C of degree, vulcanization time is the technique sulfurizing time t90 determined by vulcameter, and sulfidization molding after treatment sheds mold
The vibration isolator can be obtained in interior pressure.
Comparative example 1
This comparative example provides a kind of vibration isolator, including the following raw material:
The preparation method of vibration isolator described above, includes the following steps:
(1) nickel coated graphite powder filler, sulphur and hexa are added in liquid nitrile rubber -40, are sufficiently stirred
Uniformly, it is then placed in the bubble extracted out in liquid nitrile rubber in vacuum tank, obtains nickel coated graphite powder filler, sulphur, six methylenes
The mixture of urotropine and liquid nitrile rubber -40；
(2) mixture of nickel coated graphite powder filler, sulphur, hexa and liquid nitrile rubber -40 is poured into poly-
In the mold of tetrafluoroethene preparation, the pressure of 5 megapascal is kept in mold, mold is put into vulcanizing press and carries out sulfidization molding
Processing, 150 DEG C of curing temperature, vulcanization time is the technique sulfurizing time t90 determined by vulcameter, and processing terminate for sulfidization molding
Afterwards, mould inner pressure is shed, the vibration isolator can be obtained.
Comparative example 2
This comparative example provides a kind of vibration isolator, including the following raw material:
The preparation method of vibration isolator described above, includes the following steps:
(1) nickel packet carbon fiber filler, sulphur and hexa are added in liquid nitrile rubber -26, are sufficiently stirred
Uniformly, it is then placed in the bubble extracted out in liquid nitrile rubber in vacuum tank, obtains nickel packet carbon fiber filler, sulphur, six methylenes
The mixture of urotropine and liquid nitrile rubber -26；
(2) mixture of nickel packet carbon fiber filler, sulphur, hexa and liquid nitrile rubber -26 is poured into poly-
In the mold of tetrafluoroethene preparation, the pressure of 5 megapascal is kept in mold, mold is put into vulcanizing press and carries out sulfidization molding
Processing, 160 DEG C of curing temperature, vulcanization time is the technique sulfurizing time t90 determined by vulcameter, and processing terminate for sulfidization molding
Afterwards, mould inner pressure is shed, the vibration isolator can be obtained.
Comparative example 3
This comparative example provides a kind of vibration isolator, including the following raw material:
The preparation method of vibration isolator described above, includes the following steps:
(1) nickel packet carbon fiber filler, sulphur and hexa are added in liquid styrene butadiene rubber SN-307R, sufficiently
It stirs evenly, is then placed in the bubble extracted out in liquid styrene butadiene rubber in vacuum tank, obtains nickel packet carbon fiber filler, sulphur, six
The mixture of methenamine and liquid styrene butadiene rubber SN-307R；
(2) mixture of nickel packet carbon fiber filler, sulphur, hexa and liquid styrene butadiene rubber SN-307R are fallen
In the mold for entering polytetrafluoroethylene (PTFE) preparation, the pressure of 5 megapascal is kept in mold, mold is put into vulcanizing press and is vulcanized
Forming processes, 165 DEG C of curing temperature, vulcanization time is the technique sulfurizing time t90 determined by vulcameter, sulfidization molding processing
After, mould inner pressure is shed, the vibration isolator can be obtained.
Performance test
It is tested for the property to by embodiment 1-6 and the preparation-obtained vibration isolator of comparative example 1-3, as a result such as 1 institute of table
Show.
The preparation-obtained vibration isolator performance of table 1 embodiment 1-6 and comparative example 1-3
| Damping ratio | Vibration isolation efficiency (%) | |
| Embodiment 1 | 0.93 | 96.4 |
| Embodiment 2 | 0.89 | 95.7 |
| Embodiment 3 | 0.91 | 94.7 |
| Embodiment 4 | 0.88 | 95.1 |
| Embodiment 5 | 0.90 | 95.9 |
| Embodiment 6 | 0.92 | 96.2 |
| Comparative example 1 | 0.85 | 87.3 |
| Comparative example 2 | 0.81 | 84.5 |
| Comparative example 3 | 0.83 | 85.8 |
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of vibration isolator, which is characterized in that the raw material including following parts by weight: 100 parts of liquid rubber and magnetic fillers 5-20
Part.
2. vibration isolator according to claim 1, which is characterized in that the magnetic fillers are 10-15 parts.
3. vibration isolator according to claim 1 or 2, which is characterized in that the liquid rubber be selected from diene series liquid rubber,
One or more of olefin-based liquid rubber, polyurethane series liquid rubber, silicon systems liquid rubber, fluorine system liquid rubber；
Preferably, the liquid rubber is selected from liquid nitrile rubber, liquid styrene butadiene rubber, liquid butyl rubber, LSR type liquid silicon
One or more of rubber.
4. vibration isolator according to claim 1-3, which is characterized in that the magnetic fillers are one-dimensional linear or two
Tie up sheet magnetic fillers.
5. vibration isolator according to claim 4, which is characterized in that the magnetic fillers are selected from nickel coated graphite powder, nickel packet carbon
One or more of fiber, flake iron powder.
6. vibration isolator according to claim 1, which is characterized in that the raw material further includes rubber chemicals.
7. a kind of preparation method of vibration isolator described in any one of claims 1-6, which comprises the steps of:
1) under the action of impressed pressure and externally-applied magnetic field, the mixture of liquid rubber and magnetic fillers is subjected to preforming place
Reason, obtains preforming rubber；
2) the preforming rubber for obtaining step 1) carries out sulfidization molding processing, obtains the vibration isolator.
8. preparation method according to claim 7, which is characterized in that the externally-applied magnetic field is parallel magnetic field, described additional
The magnetic induction intensity in magnetic field is 0.1-1.0 tesla, and the impressed pressure is 3-8 megapascal, the liquid rubber and magnetic fillers
Time of the mixture in the externally-applied magnetic field be 5-20 minutes.
9. preparation method according to claim 7 or 8, which is characterized in that further include being filled out to the liquid rubber and magnetism
The step of rubber chemicals are added in the mixture of material.
10. preparation method according to claim 9, which is characterized in that the preforming processing step are as follows: by liquid rubber
The mixture of glue, magnetic fillers and rubber chemicals is placed in mold, then precompressed under the action of impressed pressure and externally-applied magnetic field
Molding.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905679A (en) * | 2021-09-24 | 2022-08-16 | 厦门环寂高科有限公司 | Magnetic hysteresis flexible sound insulation board and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105199246A (en) * | 2015-10-29 | 2015-12-30 | 芜湖海程橡塑有限公司 | Magnetic butyl damping composite material for automobiles and preparation method |
| CN107269748A (en) * | 2017-06-23 | 2017-10-20 | 全球能源互联网研究院 | A kind of transformer vibration isolator and preparation method thereof |
| CN108276620A (en) * | 2017-12-25 | 2018-07-13 | 江苏金泽重型机械有限公司 | A kind of preparation process of generator rubber beam |
| CN108912574A (en) * | 2018-07-17 | 2018-11-30 | 国网河南省电力公司西峡县供电公司 | A kind of generator shock pad rubber and preparation method thereof |
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| CN105199246A (en) * | 2015-10-29 | 2015-12-30 | 芜湖海程橡塑有限公司 | Magnetic butyl damping composite material for automobiles and preparation method |
| CN107269748A (en) * | 2017-06-23 | 2017-10-20 | 全球能源互联网研究院 | A kind of transformer vibration isolator and preparation method thereof |
| CN108276620A (en) * | 2017-12-25 | 2018-07-13 | 江苏金泽重型机械有限公司 | A kind of preparation process of generator rubber beam |
| CN108912574A (en) * | 2018-07-17 | 2018-11-30 | 国网河南省电力公司西峡县供电公司 | A kind of generator shock pad rubber and preparation method thereof |
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| CN114905679A (en) * | 2021-09-24 | 2022-08-16 | 厦门环寂高科有限公司 | Magnetic hysteresis flexible sound insulation board and manufacturing method thereof |
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