CN202782008U - High damping composite material used for vibration and noise reduction of high speed train - Google Patents
High damping composite material used for vibration and noise reduction of high speed train Download PDFInfo
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- CN202782008U CN202782008U CN 201220490755 CN201220490755U CN202782008U CN 202782008 U CN202782008 U CN 202782008U CN 201220490755 CN201220490755 CN 201220490755 CN 201220490755 U CN201220490755 U CN 201220490755U CN 202782008 U CN202782008 U CN 202782008U
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Abstract
The utility model provides high damping composite material used for vibration and noise reduction of a high speed train and comprises an aluminium material layer and a coating inner layer. The aluminium material layer comprises an outer surface and an inner surface. The damping coating inner layer coats the inner surface of the aluminium material layer. The high damping composite used for the vibration and noise reduction of the high speed train has the advantages of being simple in construction, low in cost and good in decay resistance and characterized in that the vibration caused in the driving of trains is reduced effectively, the noise in the coach of trains is reduced. Therefore travelers can feel more comfortable on the train.
Description
Technical field
The utility model relates to a kind of vibration and noise reducing material, is specifically related to a kind of high damping composite material for the bullet train vibration and noise reducing.
Background technology
Bullet train because have that haul distance is long, freight volume large, the advantage such as speed and expense are low, and become one of at present important passenger carrying tool of China.The side effects such as along with train constantly raises speed, bullet train has satisfied people to vehicles demand fast, but simultaneously, and the strong and noise of vibration was large when the lifting of speed had also brought train travel.
Therefore, how effectively to reduce the vibration that produces under the train travel state, and the noise level that reduces railway car inside, thereby improve the comfort level that the passenger takes train, have important practical significance.
The utility model content
Defective for the prior art existence, the utility model provides a kind of high damping composite material for the bullet train vibration and noise reducing, can effectively reduce the vibration that produces under the train travel state, and the noise level that reduces railway car inside, thereby the comfort level that the passenger takes train improved.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of high damping composite material for the bullet train vibration and noise reducing, comprises alumite layer and damping paint internal layer; Described alumite layer comprises outer surface and inner surface; Described damping paint internal layer is coated in the described inner surface of described alumite layer.
Preferably, comprise that also damping paint is outer; Described damping paint skin is coated in the described outer surface of described alumite layer.
Preferably, also comprise skin of paint; Described skin of paint is arranged between described alumite layer and the described damping paint internal layer.
Preferably, the described inner surface of described alumite layer is smooth surface.
Preferably, the described inner surface of described alumite layer is the surface with at least one projection.
Preferably, the height of described projection is the 1.0-2.0 millimeter.
Preferably, the thickness of described alumite layer is the 4.0-5.0 millimeter; The thickness of described damping paint internal layer is the 2.0-3.0 millimeter.
The beneficial effects of the utility model are as follows:
The utility model provides a kind of high damping composite material for the bullet train vibration and noise reducing, have not only that construction is simple, cost is low and the advantage of corrosion resistance and good, but also can effectively reduce the vibration that produces under the train travel state, and the noise level that reduces railway car inside, thereby improve the comfort level that the passenger takes train.
Description of drawings
The structural representation of the high damping composite material that is used for the bullet train vibration and noise reducing that Fig. 1 provides for the utility model;
The aluminium section bar that Fig. 2 provides for the utility model applies damping coating layer front and back oise insulation factor test curve figure;
Wherein, 1---alumite layer; The 2---damping coating layer.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
As shown in Figure 1, the high damping composite material that is used for the bullet train vibration and noise reducing that the utility model provides comprises alumite layer and damping paint internal layer; Described alumite layer comprises outer surface and inner surface; Described damping paint internal layer is coated in the described inner surface of described alumite layer.For strengthening the damping capacity of high damping composite material, can comprise that also damping paint is outer; Described damping paint skin is coated in the outer surface of described alumite layer.In addition, can also comprise skin of paint; Skin of paint is arranged between alumite layer and the damping paint internal layer.The inner surface of alumite layer can be smooth surface, also can be for having the surface of at least one projection, the height of projection is the 1.0-2.0 millimeter, by projection is set, strengthened the external surface area of alumite layer, and then strengthened alumite layer and damping paint contact area, thereby can strengthen the vibration and noise reducing performance of the high damping composite material that the utility model provides.
In addition, in the utility model, the thickness of the thickness of alumite layer and damping paint internal layer is adjusted according to actual needs, and the thickness of alumite layer includes but not limited to the 4.0-5.0 millimeter; The thickness of damping paint internal layer includes but not limited to the 2.0-3.0 millimeter.
The damping paint internal layer that the utility model provides character before construction is:
(1) is the high thickness flowable material of black, mainly formed by water, filler, water dispersed resin, fire retardant etc. that amount of solid content is about 70%.And damping paint is peculiar smell slightly, and VOC VOC is lower than 200mg.
(2) density: because damping paint is the high viscosity materials material, sneak into unavoidably the part bubble in the damping paint, owing to sneak into the uncertainty of bubble, so can't obtain accurate density value, density range is 1.3g/cm
3～1.5g/cm
3
(3) combustibility
This damping paint is by the test of DIN5510-2 combustibility, and its flammable grade is S4, and the smoke creating grade is SR2, and dropping generates grade ST2.
This damping paint is rated as grade 1 according to BS 476Part 7:1997 test.
According to BS 6853:1999 appendix D 8.6 tests, A
0=5.063.
According to BS 6853:1999 appendix B2 test, R=0.84.
Because this damping paint selects environment friendly flame retardant to add, and therefore discharges without the halogen family harmful element in combustion process.
The construction method that the damping paint internal layer that the utility model provides is coated to aluminium section bar is:
The damping paint that the utility model provides stainless steel, carbon steel and the aluminium shape surface of cleaning can with the metal base chemical crosslinking, form chemical bond, thereby have excellent adhesive force.But the damping paint that provides owing to the utility model is spraying and is not having the steel surface of primer coating the problem of rust can occur dodging, thereby causes finished product adhesive force to reduce.The carbon steel base material in there not being coating prime lacquer so the damping paint that the utility model provides is not suitable for constructing.The priming paint such as the damping paint that the utility model provides and epoxy zinc rich primer have good compatibility, produce chemical crosslinking with the priming paint surface and form excellent faying face, so, as a kind of optimal way, need at first priming paint to be coated in the surface of aluminium section bar, and then damping paint is coated in the surface of priming paint.
Can adopt blade coating or high pressure painting dual mode damping paint to be coated in the surface of priming paint.1 wet-film thickness of product facade spraying can reach about 3mm not sagging, and wherein, build is about 2mm.End face once sprays wet-film thickness can reach not sagging of 2.5mm, and wherein, build is about 1.7mm.Coating thickness wet film of end face is no more than 3mm.
In the practice of construction process, preferably use the construction of GRACO high pressure airless spraying apparatus, rifle is chewed and is selected 645 type rifle mouths.
The damping paint internal layer that the utility model provides is coated to the drying process behind the aluminium section bar:
The later dry run of damping paint construction that the utility model provides is the volatilization of water and the cross-linking process of resin.There are not volatilization and the discharging of aromatic hydrocarbon solvent in the dry run.The film forming of resin and the volatilization of water have certain requirement to environment temperature, and environment temperature can not be lower than the freezing point of water and the MFT of resin, so the preferred ambient temperature is not less than 5 ℃ in the drying and forming-film process.
After this product construction, can reach fingertip within about 1h and do, can carry out 2 sprayings or blade coating in film coated surface within the 24h.
Behind the product drying, form the continuously fine and close white-grayish coating of one deck, macroscopic view is smooth, and microcosmic has concavo-convex.
The high damping composite material that the utility model provides has excellent antiseptic property and acid-proof alkaline, according to GB/T1763-1989 the product antiseptic property is tested.Its salt water resistance performance can reach 20 days, and acid and alkali-resistance can reach 48h.According to the salt spray resistance of GB/T1771-2007 test products, this product salt spray resistance can reach more than the 500h.
In the high damping composite material that the utility model provides, damping coating layer be one deck continuous, fine and close by filming that macromolecule resin and inorganic filler form.Damping paint is after being subject to external force, polymer segment setting in motion and rotation in filming, in the process of sub-chain motion and rotation, the factors such as the resistance that the mechanical energy that vibration produces can be moved because of polymer segment in the polymer segment motion process, friction change the heat energy of material self into, thus the attenuating structure vibration.
The high damping composite material that the utility model provides can be applied to top board, base plate or the sidewall of speed train cars, and defening effect is very obvious, as shown in Figure 2, and for aluminium section bar applies damping coating layer front and back oise insulation factor test curve figure.
In sum, the high damping composite material that is used for the bullet train vibration and noise reducing that the utility model provides, have not only that construction is simple, cost is low and the advantage of corrosion resistance and good, but also can effectively reduce the vibration that produces under the train travel state, and the noise level that reduces railway car inside, thereby improve the comfort level that the passenger takes train.
The above only is preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection domain of the present utility model.
Claims (7)
1. a high damping composite material that is used for the bullet train vibration and noise reducing is characterized in that, comprises alumite layer and damping paint internal layer; Described alumite layer comprises outer surface and inner surface; Described damping paint internal layer is coated in the described inner surface of described alumite layer.
2. the high damping composite material for the bullet train vibration and noise reducing according to claim 1 is characterized in that, comprises that also damping paint is outer; Described damping paint skin is coated in the described outer surface of described alumite layer.
3. the high damping composite material for the bullet train vibration and noise reducing according to claim 1 is characterized in that, also comprises skin of paint; Described skin of paint is arranged between described alumite layer and the described damping paint internal layer.
4. the high damping composite material for the bullet train vibration and noise reducing according to claim 1 is characterized in that, the described inner surface of described alumite layer is smooth surface.
5. the high damping composite material for the bullet train vibration and noise reducing according to claim 1 is characterized in that, the described inner surface of described alumite layer is the surface with at least one projection.
6. the high damping composite material for the bullet train vibration and noise reducing according to claim 5 is characterized in that, the height of described projection is the 1.0-2.0 millimeter.
7. each described high damping composite material for the bullet train vibration and noise reducing is characterized in that according to claim 1-6, and the thickness of described alumite layer is the 4.0-5.0 millimeter; The thickness of described damping paint internal layer is the 2.0-3.0 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220490755 CN202782008U (en) | 2012-09-24 | 2012-09-24 | High damping composite material used for vibration and noise reduction of high speed train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220490755 CN202782008U (en) | 2012-09-24 | 2012-09-24 | High damping composite material used for vibration and noise reduction of high speed train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202782008U true CN202782008U (en) | 2013-03-13 |
Family
ID=47809337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220490755 Expired - Fee Related CN202782008U (en) | 2012-09-24 | 2012-09-24 | High damping composite material used for vibration and noise reduction of high speed train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202782008U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889793A (en) * | 2015-06-08 | 2015-09-09 | 广东工业大学 | Damping spring sheet type rigidity frequency adjustable macro-micro integrated composite platform |
| CN106866896A (en) * | 2017-02-28 | 2017-06-20 | 西安交通大学 | A kind of dot matrix metal composite construction with nano-core-shell structure and preparation method thereof |
| CN106915104A (en) * | 2017-02-28 | 2017-07-04 | 西安交通大学 | Acrylic resin-based damping coatings composite construction of dot matrix metal and preparation method thereof |
-
2012
- 2012-09-24 CN CN 201220490755 patent/CN202782008U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889793A (en) * | 2015-06-08 | 2015-09-09 | 广东工业大学 | Damping spring sheet type rigidity frequency adjustable macro-micro integrated composite platform |
| CN106866896A (en) * | 2017-02-28 | 2017-06-20 | 西安交通大学 | A kind of dot matrix metal composite construction with nano-core-shell structure and preparation method thereof |
| CN106915104A (en) * | 2017-02-28 | 2017-07-04 | 西安交通大学 | Acrylic resin-based damping coatings composite construction of dot matrix metal and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130924 |