详情
Application of Vermiculite in Fire
Board
Under
certain conditions, with the help of adhesive and chemical
additive, granular mineral expanded vermiculite will be adhered
together to form the semi-finished board. After that, the
semi-finished board will undergo kinds of fine processing by groups
of special processing equipments to form the finished board. This
technology combines the strong points of organic and inorganic
composite hot pressing and inorganic composite adhesive cold or hot
pressing.
Vermiculite Fire Board Has the Following
Features
1. The
inorganic compound formula eliminates the problems of high
temperature damage, flue, and poor long-term stability of organic
adhesive, with great performance of preventing fire and smoke. It
reaches the highest international level (A**5).
2. In
technology process, it takes the advantage of the production
equipments of man-made panels and mineral wool boards to compose
its own special assembly line, which reduces the factors
influencing quality to the minimum and makes it easy to control,
thus improving production efficiency and pass rate. Besides,
vermiculite has a wide application. It can be used to produce fire
doors with expanded vermiculite as cores, plant fiber vermiculite
flame-resistant plywood, light vermiculite heat-insulation board,
light clay brick, polymer film, catalyst and etc.
Expanded
vermiculite is porous, light and high in melting point, which makes
it most suitable material for high-temperature heat insulation
(***0 ℃ or less) and fire insulation. By experiments, the
temperature of back surface of *5cm thick cement vermiculite boards
is only about *0 ℃ after it is burned under high
temperature****0 ℃for **5 hours.
No heat can be felt with its back surface even if the 7 cm thick
vermiculite board is burned for 5 minutes by fire welding flames
under ***0 ℃ and its
front surface is melt. Therefore, expanded vermiculite surpasses
all heat preserving materials such as asbestos, diatomite products,
etc.
Vermiculite can be used as heat preserving
materials for high-temperature facilities, such as the insulating
bricks, boards and caps in the smelting industry. Those equipments
needing thermal insulation can all use vermiculite boards,
vermiculite bricks, cement vermiculite products or asphalt
vermiculite products to preserve heat. These facilities include
wall, roof, refrigerator, boiler, steam piping, liquid pipeline,
water tower, changing furnace, heat exchanger, storage of dangerous
goods, annealing, melting furnace, and military enterprises, etc.
Tiny air compartments, formed after vermiculite’s expansion, enable
the expanded vermiculite become a porous sound insulation material.
When the frequency is ***0C / S, the sound-absorbing rate of 5mm
thick vermiculite is *3%, 6mm *4%, 8mm *0%.
Expanded
vermiculite, paved on the roof, will play a very good heat
insulating effect, making the building warm in winter and cool in
summer. Using vermiculite bricks into the partition wall of high
rise or using vermiculite blocks as partition materials into hotels
or entertainment centers, effects of sound absorption, fire proof,
heat preservation and so on will be fully displayed and the
building will also be reduced of its load.
Vermiculite is great in resisting frost as its
capacity and strength keeps the same even after it goes through *0
times of freeze-thaw cycle experiments under **0 ℃. It is
porous and has absorption property. It can keep heat and prevent
condensation. Besides, it can absorb radiation rays, therefore
vermiculite boards can be placed inside laboratory to substitute
expensive lead boards to absorb up to *0% of scattered rays. *5mm
thick vermiculite is equivalent to 1mm thick lead
board.
| 国家: |
China |
| 型号: |
XF-008
|
| 离岸价格: |
150 ~ 300 / Ton （面議）
获取最新报价
|
| 位置: |
- |
| 最小订单价格: |
150 per Ton |
| 最小订单: |
10 Ton |
| 包装细节: |
in bags |
| 交货时间: |
in 13days to 30 days |
| 供应能力: |
100000 Ton per Week |
| 付款方式: |
T/T |
| 產品組 : |
- |
