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The car is a common
misunderstanding of sound insulation selection on the insulation
materials: don't watch any information not may sound good
sound-absorbing function can be used in the car, the car as a
special kind of traffic tools, due to people's safety and health
are bound together in a common cause almost harsh, so the demand
for good sound insulation materials.
Fiber glass or asbestos products: low cost, good sound-absorbing
function, fire retardant function itself is good, but not
waterproof, washing or rain process of moving water back, a body
weight significantly
Add, accelerate the function to reduce the short-term moisture
is difficult to evaporate, and some of the water is easy to form
the body corrosion. In addition, there are well-known
environmental doubt, together is also a strong carcinogen.
Cotton fiber felt: itself has excellent sound-absorbing
function, has also been a lot of economic type of car used as
thermal insulation materials used at the bottom, there are also
made of the noise data, but the data itself does not absorb
water and fire, such as little water, it is difficult to dry and
easy to attack by major car, stale and mildew no, for the engine
cover and the interior of the door, can be used for vehicle
bottom parts. Use more than 3 years of the vehicle should pay
attention to view the original car sound insulation cotton have
no old and rusty car floor, such as the appearance, can be used
in the sound insulation and sound insulation.
Aluminum foil composite materials: some noise often such goods
will be posted in the store under the hood, the hood for
protective paint. Due to the high reflection function of
aluminum foil heat (more than 95%), posted this information back
aluminum foil composite heat engine, declared most was the
reflection back to the engine itself and the surrounding lines,
although useful to maintain the paint, is not conducive to the
engine long time stable operation, accelerate the aging of the
engine compartment line. Easily lead to security questions. In
addition, the aluminum foil composite materials are usually not
waterproof program, rain or wash the car process will bring the
body of the question. Good hood protective equipment should be
flame retardant and heat insulation, waterproof, best can have
sound-absorbing effect, appearance should be dark contrast
interest. For example, the correct use of aluminum foil in the
car: the use of high heat reflection properties and other
composite materials made after the car sunshade or exhaust heat
shield use.
With viscose materials: self adhesive or adhesive or adhesive,
common market, many noise data are with viscose solution, opened
with stickers to information posted, the operation is very
convenient, this is mainly to reduce costs and facilitate the
construction of thinking, because the adhesive itself is not
aging, low intensity the cold season, and presents briefly
brittle crack, when summer vehicle in direct sunlight, because
the interior temperature adjustable rise, make gum softening and
activating activity, resulting in pollution of the body, and
then glue lose sound effect, therefore, self adhesive can only
be used in some noise floor of the vehicle parts. Other parts of
the door, and the trunk body should be used with caution.
Cotton blanket, blankets and other materials with cotton blanket
and felt like a lot of information economy car factory, usually
at the bottom part of the driver and shop at the foot of the
sound insulation, sound-absorbing effect, the first is for low
cost consideration, this information is usually made of textile
waste or scrap operation, low cost, good sound-absorbing effect,
but don't fire, not waterproof, anti-corrosion, only some bottom
parts for vehicle application. This is also used by the original
vehicle information, which can be seen, the original car use,
may not be professional, the role is not necessarily good.
3, to know every sound misunderstanding car noise owners hope
sound effect is good, and some people want to listen to any
dynamic engine, that is obviously not to end through the sound
insulation, noise disposal, noise system does not mean that can
eliminate all dynamic, because some dynamic the engine, such as
dynamic or pavement, can provide the corresponding information
for the driver, drivers if sitting in completely no dynamic
space will lose the sense of direction; in addition, if not to
hear the whistle of the front and rear of the vehicle will also
bring security by itself..
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