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发表于 2014-2-2 16:18:00
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本帖最后由 又见Mishka 于 2014-2-20 12:52 编辑
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汽车噪音的来源：$ W! X1 h- N/ a7 Z# ^8 A7 f
-发动机的振动噪音、-变速器的振动噪音-路噪-发动机的空气传播噪音-排气管和喷射系统噪音-外部噪音（胎噪，其他车辆的噪音，风噪等）-噪音的处理方式. ]9 Q' Q( k" h
声音是一种机械波，这种机械波需要通过媒介把能量从一个地方传播到另外一个地方。声音的发生需要有两个因素，一个要有振动的物体，另外一个则需要媒介的传播，媒介可以是任何相联系的物体也可以是相互交叉的颗粒分子。也就是说声音可以在固体、液体或者是气体中传播。
1 g- \& b' s- ry声音经过空气的传播可以覆盖整个车身，穿过车身进入车厢里的声音也是十分清晰的。
2014-2-2 16:20
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/ o) N, u8 _) e+ ~" G有三个区域影响进入车厢声音的数量-上图都有标记了。我们已经开发了适合每一个区域的隔音降噪材料1) 吸音材料：吸音材料主要用于在源头处吸收和抑制噪音，一般安装在发动机和车轮旁边，有以下益处： -吸收不必要的噪音 -隔热
' f9 vJ2 y) Q" v3 z0 b) z( b2) 止振材料：止振材料一般安装在车身内部，有以下益处; -吸收车身的振动噪音 -具有密封功能，防止车身腐蚀 -增加车身厚度和刚性，加强车身安全性能
7 i7 n! @8 r: |+ _3) 隔音材料：隔离从车身外部进来的噪音，一般用于门板处 9 @$ z7 T( b6 g; ], ?5 b3 h
-隔离不必要的噪音 -隔热 -防潮
( m5 V8 N# ~1 Q2 D0 z( V. B. \4) 密封材料：密封材料主要是用于密封电线的封口和车身内部的接触原件，减少传入车厢内的吱吱声。安装程序和产品效果:一般安装时会用到以下这些材料 -有自粘层的材料-需要使用喷枪安装的乳香脂的液体材料。-隔音材料的施工组合因每一辆车的型号不同而有所不同。我们建议您在决定给您的爱车施工隔音材料之前，一定要先咨询当地的经销商，为您的车量身定制最适合的隔音方案！ 需要注意的是：由于声音传播的特性（可以通过任何媒介传播），理论上说噪音是很难被完全消除的-只有在真空的条件下声音才不会传播。STP通过不同材料的有效结合，以及正确的施工手法可确保减少60%左右的噪音，另外还有以下益处:2 d2 V) U6 l) R# ]( B4 b: ?+ B# |
-提高舒适性-增强音乐的播放品质-提高安装性能-隔热-防潮-防腐蚀5 K- n3 f6 z( y
STP的所有产品均通过国际权威机构的品质认证，保证所有的产品是安全无毒的。
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2014-2-2 16:21
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{; _' o; \$ r_Our Products :
0 j3 ?% Q) \% H) J; ^+ z" MSTP Hood
2014-2-2 16:14
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A multi-layered material consisting of lavsan polyester metalized film and elastic polyurethane foam.
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This material is well suited for usage in the engine compartment due to the outer layer that is both oil and gasoline resistant. This layer also reflects the heat from the engine significantly reducing the amount of it transferred into the passenger compartment of the vehicle. This material also features a very strong sound absorption necessary to reduce the noise from the engine.
5 o& b; `0 r4 |) u/ n2 `' YSTP iSilver
2014-2-2 16:14
(58.21 KB)
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0 E6 P* Y8 A+ l+ t- nA very flexiblemulti-layered vibration damping material with polymer layer based on butylrubber and aluminum foil outer surface. This material is equipped withself-adhesive glue layer. iSilver AntiRust tested 500 hours under condition ofa salt fog. Corrosion centers on a mounting surface are not detected.& {" U- b+ g& y3 V# u$ z* {
, f% {; L- P4 RThe superbflexibility of this material allows for use on complex surfaces while providingthe maximum vibration damping for material of this kind. This material iswater- proof and once applied provides good defence against corrosionpreventing any water and oxygen from coming in contact with chassis.: Q7 q2 H2 L8 \) s
STP Silver (Bulk)
2014-2-2 16:14
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What is it?A very flexible multi-layered vibration damping material with polymer layer based on butyl rubber and aluminum foil outer surface. This material is equipped with self-adhesive glue layer.
5 f4 F! |, L/ r, bWhat does it do?The superb flexibility of this material allows for use on complex surfaces while providing the maximum vibration damping for material of this kind and doubles up as a sealant. This material is best suited for areas with low amounts of vibrations. This material is water-proof and once applied provides good defense against corrosion preventing any water and oxygen from coming in contact with chassis.
2 U& R$ r* m& n0 {6 ck3 \) qAreas for application:Doors, Roof, Bonnet lid, Boot lid, Door panels, Plastic panels of passenger compartment.Application:The surface needs to be dried and cleaned of any dust, grease and oil before application. Self-adhesive layer will ensure tight grip to the chassis.8 S; P- Z1 c- r8 P
Technical specifications:Mechanical loss factor: more than 0.259 c/ T9 q9 I6 _- E# ]! B# ~
Thickness: 2 mm
8 {" _' Z: v! RFoil thickness: 60 micron
% @4 ?0 D) b5 P( v! pWeight: 3 kg / m2
) o$ _* Z$ H- s# Y! f( zFlammability: 100 millimeters / minute2 _3 M7 k8 a8 \$ q) m9 w
Working temperature range: -45°C to +80°C
, H- l7 H) f; p$ w% a; T% P2 `Water resistance: does not absorb moisture
( O: ?b" I' N" D- h$ h: @3 D2 zPackaging:STP SILVER BULK SOLUTION = 10 sheets x 0.53 m x 0.75 m (3.975 m2)* b* t2 r+ b" J: v- i$ ?# I% W& j
STP CrystalSTP晶片
2014-2-2 16:14
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2014-2-3 16:12
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An elastic triple-layered multifunctional lens, based on bitumen saturated polyurethane foam.( j% L/ w" m( r' z' S; d9 V+ K5 R/ u
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Acoustic lens is aimed at tuning of the cars and provides 3 benefits:
8 V8 a' Y& @: a: O— Vibration damping of the space inside the door0 \( x7 T- h$ ?( u5 V7 D
— Sound absorption inside the door" F; M% ~+ E, u6 q) K0 g
— Dispersing back wave distortion of the speakers' x* }, m4 \: V- G1 F
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产品介绍:; Q8 O4 _0 P3 W. t2 a5 {( D
STP晶片是一种富有弹性的三层物质构成的多功能的声透镜，主要成份是饱和的丁基胶加上高密度的聚氨酯泡沫复合而成。( Q0 w( i: X) R
产品用途:|, v' p: W' [2 F" I
晶片主要用在汽车音响的定音方面，主要有以下3点益处：
T. T6 @+ Q3 D$ i- 门板空间的止震作用- 门板空间的吸音作用- 分散扬声器的振动波。
% v+ F) q- J7 b5 `! p. P安装区域:扬声器背面
2 m# ^" @( t# r0 u, V: T安装说明：安装前，需清理要安装区域的表面，不能有灰尘油脂等。确保自粘层能牢牢黏贴在需要安装的区域表面。
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技术参数:机械损失系数： 0.2吸音指数：2250HZ吸音达到80%厚度： 10 mm重量： 0.1 kg / m2防火测试：100毫米/分钟工作温度：-40°C到 +80°C防水性： 20%
) U) ~6 d1 K7 k全车施工. w/ K( m7 D% X* x
2014-2-20 12:52
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2014-2-20 12:52
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2014-2-20 12:52
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