Description of calcium silicate board
Calcium silicate boards are a new generation of fire protection. This is a sheet made of silicate minerals (e.g. gypsum, limestone, etc.) and a certain proportion of fibrous materials (e.g. fiberglass, inorganic fibers, etc.), which are calcined, crushed and mixed at high temperatures. This material is made from natural, environmentally friendly calcium silicate material and has a maximum heat resistance limit of up to 1100 degrees.
Characteristics of calcium silicate board
| Name of indicator | KR-270 | KR-300 |
|---|---|---|
| SiO2, массовая доля, % | 46-48 | 46-48 |
| CaO, массовая доля, % | 39-41 | 39-41 |
| Al2O3, массовая доля, % | 0,39-0,42 | 0,39-0,42 |
| MgO, массовая доля, % | 0,5-0,7 | 0,5-0,7 |
| Fe2O3, массовая доля, % | 0,3-0,4 | 0,3-0,4 |
| Na2O3K2O3, массовая доля, % | 0,09-0,12 | 0,09-0,12 |
| Density | ≤ 270 кг/м3 | ≤ 300 кг/м3 |
| Прочность на изгиб, Мпа не менее | ≥0,55 | ≥0,58 |
| Теплопроводность, Вт /м*К. не более при температуре | ||
| 200С | 0,098 | 0,098 |
| 400С | 0,110 | 0,110 |
| 600С | 0,157 | 0,157 |
| 800С | 0,218 | 0,218 |
| Дополнительная линейная усадка при 1000°С, % | ≤ 2 | ≤ 2 |
| Предел прочности при сжатии, мПа | ≤ 1,0 | ≤ 1,0 |
| Пористость,% | 90,2 | 90 |
| Humidity,% | 3-5 | 3-5 |
| PH | 8-9 | 8-9 |
| Color | Белый | Белый |
| Габариты стандарт: ДхШхТ мм | 1200x1200x25~115mm, 1000x1000x25~115mm, 1000x500x25~115mm, 1200x600x25~115mm, 600x300x25~120mm, 610x300x25~120mm, 500x500x25~115mm, 400x250x25~120mm | 1200x1200x25~115mm, 1000x1000x25~115mm, 1000x500x25~115mm, 1200x600x25~115mm, 600x300x25~120mm, 610x300x25~120mm, 500x500x25~115mm, 400x250x25~120mm |
Properties of calcium silicate board
Calcium silicate insulation board has low thermal conductivity, which can effectively insulate the building, reduce heat transfer and improve the thermal insulation effect.
Calcium silicate insulation board is an inorganic material with good fire resistance, which can stop the spread of flame and improve the fire safety of buildings.
Calcium silicate insulation boards have excellent strength and can be used for a long time without significant deformation or loss of quality.
Calcium silicate insulation board can maintain stable performance at high temperatures without significant deformation or loss of quality, and can withstand sudden cold and hot working conditions.
Calcium silicate insulation board has certain mechanical processing properties and can be subjected to various types of mechanical processing, such as cutting, turning holes, etc.
Процесс производства плит из силиката кальция
During the production of calcium silicate boards, silicon dioxide, calcium oxide, reinforced fibers, additives and other necessary raw materials are thoroughly mixed to obtain a stable and homogeneous solution.
After mixing, pour the raw material slurry into molds of the desired size and shape. Spread the slurry evenly over the mold and drain off excess water. During this operation, pressure is applied to compact the suspension and remove trapped air.
The formed form is placed in a hydraulic press, where further compaction of the suspension and removal of excess water occurs under pressure. The pressing process allows achieving the density and strength required for calcium silicate boards.
After pressing, the boards undergo a high-temperature hardening process. During the hardening process, a chemical reaction occurs between the components, resulting in the formation of calcium silicate crystals that bind the boards together.
Once the curing process is complete, the boards are cut to size using a saw or other cutting device. Sand or sand simultaneously to obtain a smooth and even surface.
Application of calcium silicate board
In the steel production process, calcium silicate boards are used to insulate high-temperature equipment such as blast furnaces, iron smelting furnaces and cowper furnaces. They can reduce energy consumption, improve production efficiency, lower the surface temperature of the equipment and reduce heat radiation loss.
Calcium silicate insulation boards are widely used for the insulation of petrochemical and oil refining equipment such as storage tanks, pipelines, heat exchangers, reactors and so on. They can effectively reduce heat loss, improve energy efficiency and ensure the stability and safety of the process.
Calcium silicate insulation boards are widely used to insulate chemical equipment such as reactors, distillation columns and pipelines. They can reduce heat loss, reduce energy consumption and improve process control performance.
Calcium silicate boards are very important in power equipment such as power generation boilers, chimneys, heat storage tanks, etc. They can effectively reduce heat loss, improve the utilization efficiency of thermal energy and reduce environmental pollution.
In the glass production process, calcium silicate boards can be used to insulate high-temperature equipment such as glass melting furnaces and glass tempering furnaces. They reduce heat loss, reduce energy consumption, and improve the efficiency and quality of glass production.
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