Centrifugal glass wool is in a molten
state by centrifugal blowing processes filamentary material ª£ fibrosis
spraying thermosetting resin and then after thermal curing deep
processing ª£ products can be made with a variety of uses. It has a flame
retardant, non-toxic, corrosion resistance, bulk density of small, low
thermal conductivity, chemical stability, low moisture absorption, good
hydrophobicity, and many other advantages ª£ is now recognized as the
most superior performance of thermal insulation, sound-absorbing
materials ª£ It has a very wide range of uses. Insulation board made of
this material, carpets, have been widely used in construction, chemical,
electronics, electric power, metallurgy, energy, transportation and
other areas, sound absorption ª£ effect is very significant. Due to
centrifugal glass wool is soft, fine fiber construction will not
irritate the skin ª£ ª£ ª£ therefore welcomed by the construction unit of
choice for thermal insulation products. Usage ª¤ glass wool carpets,
sound-absorbing cotton blankets are an ideal acoustic and thermal
insulation materials are widely used in housing wall ª£ ship cabin
insulation ª¥ computer rooms, refrigerator thermostat ª¥ various generator
room, pump room noise ª¥ sound cabinet, audio adjustment. Sound
absorption coefficient ª¤ glass wool carpets, cotton blankets
sound-absorbing material for absorbing when in use ª£ behind retention or
surface air layer paste decorative materials. The air layer thickness is
thicker in the 100-150mm range ª£ ª£ air layer, the higher the sound
absorption bass domain ª£ The air thickened to 300mmª£ effective acoustic
frequency range to be extended to 100Hz. Uses: sound-absorbing effect ª¤
wall, wall insulation, wall insulation, wall insulation. Centrifugal
glass wool fiber fluffy staggered inside there are a lot of tiny pores ª£
ª£ is typical of porous sound-absorbing material ª£ has good sound
absorption properties. Centrifugal glass wool can be made into wall,
ceiling, space absorber, etc. ª£ absorb sound within the room can be a
lot of energy to reduce the reverberation time ª£ ª£ reduce indoor noise.
Centrifugal glass wool sound absorption characteristics not only with
the thickness and density are also factors related ª£ cover material,
structure and so on. In architectural applications needed taking into
account the cost, aesthetics, fire, moisture, dust, anti-aging and many
other issues. Centrifugal glass wool belonging to the porous
sound-absorbing material ª£ has good absorption properties. Centrifugal
glass wool sound absorption can not due to surface roughness ª£ but
because a large number of internal and external communication tiny pores
and holes. When sound waves incident on the glass wool ª£ acoustic energy
down into the pores within the material ª£ cause vibration of air
molecules in the void. Since the viscous resistance of air and air
molecules and pore wall friction ª£ sound energy into heat energy loss.
Centrifugal glass wool sound absorption performance and installation
conditions also have a close relationship. When behind glass wool board
air layer similar ª£ same thickness without air layer plate glass wool
sound absorption effect. Especially in the low-frequency sound
absorption performance than the real material posted on the hard ground
surface will be greatly improved ª£ absorption coefficient increases with
the thickness of the air layer increases to a certain value ª£ but the
effect is not obvious. Using different density glass wool stacked
together and formed the bulk density increases ª£ ª£ may be obtained in
the form of greater absorption effect. For example, a layer of 2.5cm
thick 24kg / m3 board with a layer of cotton 2.5cm thick 32kg / m3
cotton board sound absorption stacked together and better than 5cm thick
layer of 32kg / m3 cotton board. The 24kg / m3 glass wool plate made 1m
long section of triangular wedge ª£ ª£ material areal density increases
the average absorption coefficient close to 1. Centrifugal glass wool
used for construction in ª£ surface tends to be attached through a
certain sound effect finishes ª£ such as less than 0.5mm plastic film,
metal mesh, window screening, fireproof cloth, glass cloth, etc. ª£
basically keep the original sound absorption characteristics.
Centrifugal glass wool with fire, heat, easy to cut and other excellent
features, is one of the most commonly used building material absorption.
However, due to centrifugal glass surface without decoration and there
will be fiber spilled ª¥ ª¥ must be made using a variety of
sound-absorbing components hidden. The most commonly used is the lowest
cost structure is perforated gypsum board ceiling infill made of glass
wool or perforated plate wall perforation rate ª¥ ª¥ substantially more
than 20% can take full advantage of centrifugal glass wool sound
absorption performance . In order to prevent spilled glass wool fibers ª¥
need perforated plate attached to the back of a layer of non-woven
fabric, mulberry paper acoustically transparent fabric ª¥ or use glass
cloth, glass wool wrapped in plastic film. Perforated gypsum board panel
also similar perforated metal plate such as aluminum ª£ ª¤, perforated
wood, perforated fiber cement board, perforated mineral wool panels.
Scope for a variety of commercial, industrial, residential building
heating, ventilation, tank, air-conditioning regulation, building
insulation, acoustic noise reduction. Specifications Bulk density (kg /
m3) Width (mm) Length (mm) Thickness (mm) Packing Disc 24-80600
1000/1200 25-1006-8 25-1006-8 sheet 24-801200 600/1200 standard sheet
thickness (mm) 25 30 40 50 60 70 80 90 100 other specifications can also
provide welcome inquiries for specific work environment requires wool
board should be moisture, noise, anti-heat function, it is necessary to
process the surface of the medium Kun-resistant veneer with a variety to
choose from. Insulation materials Recommended thickness of the ambient
temperature of 20 ¡æ is holding the device operating temperature (¡æ) 100
150 200 250 300 350 400 450 500 Thickness (mm) 40 60 85 120 150 170 200
230 250 Note: The table is based on the outer protective layer of
insulation material the bright tin or aluminum skin; ambient wind speed
is assumed that the surface temperature of zero insulation is: 50 ¡æ
product Selection thermal conductivity average temperature ¡æ 25 50 100
125 150 200 250 300 thermal conductivity W / mK 0.03 0.035 0.041 0.044
0.049 0.057 0.07 0.09 Note: 1, the thermal conductivity equation: Y =
0.0294 + 0.00007X + 4 ¡Á 10-7X 2 2, the above data may provide the
national professional testing organizations test report issued by the
technical parameters item unit index Remarks Found bulk density kg / m3
10-96 10-96 GB / T 13350-2000 average fiber diameter ¦Ìm <8.0 4.0-6.0 GB
/ T 13350-2000 hydrophobic rate%> 98> 98.5 JISA9512-2000 thermal
conductivity W / mk 0.049-0.042 0.045-0.032 GB / T 13350-2000
incombustible incombustible qualified (A grade) GB / T 13350-2000
product reverberation absorption coefficient 1.03 titration 24kg /
m32000HZ GB / J47-83 the highest temperature ¡æ 400 410 GB / T 13350-2000
physical properties thermal load shrinkage temperature GB / T11835-1998
250 degrees -400 degrees Celsius corrosion resistance ASTM C665 no
chemical reaction of anti-fungal ASTM C665 does not mildew performance
test method ASTM C1104 GB5480.7-87 technical requirements hygroscopic at
49 degrees Celsius, relative 90% humidity, of not greater than 3% by
weight
At 49 degrees Celsius, relative humidity of 90%, the weight of not
greater than 5% moisture permeability ASTM E96 GB / T17146-1997 maximum
0.013 g / 24 hr square meter mm Hg combustion performance UL723 ASTM E84
CAN / ULC S- 102 GB8624 flame spread: 25 smoke diffusion: 50 a-level
non-combustible material at an average temperature of 24oC density
thickness width length thermal conductivity thermal product Code kg / m3
mm mmmm W / mK m2.K / W 32 25 600 1200 0.034 0.73 32,306,001,200
32,406,001,200 0.88 1.17 0.76 48,256,001,200 48,306,001,200 of 0. The
9148406001200 0.78 1.21 64,256,001,200 64,306,001,200 64,406,001,200
0.94 1.25.
.