The main raw material of rock wool products is fine basalt rock. The basalt rock is made into inorganic fiber after meited under high temperature and processed in the high-speed centrifugal device. he rock wool board can be made into wool board and rock wool pipe shells.Technical characteristics of rock wool board are as follows.1, good thermal insulation property, mechanical?property and fireproof?performance.2, It has high the coefficient of acidity and better chemical stability and fiber durability.3, It has good sound-absorbing performance.Rock wool is widely used for thermal insulation in boilers and equipment pipelines of petroleum, chemical, metallurgy, textile industries. It is also used for thermal insulation and sound absorption of partition,suspended ceiling, inner wall and external wall in the construction industry.Rock wool board's main products and specifications are as follows.1, the density of rock wool board:80 -180kg / m3 2, the thickness of rock wool board :50mm-100mm 3, specifications of rock wool board :1000mm × 600mm. The thickness is 10mm-100mm; the length is 1m; width is 0.63m; density is 100-220kg and diameter is 27mm-1080mm.
Centrifugal glass wool uses glass as the main raw material. Glass mixed with a certain percentage of other materials should be fully melted in the glass furnace. The melted solution will flow out of bushing and enter into the centrifuge.In the high speed centrifuge, glass will be thrown into a glass thin stream. Under the effect of high temperature and high speed flame, glass thin stream is further stretched into fibers and sprayed with foggy adhesive. In the effect of negative pressure wind cotton webs, the fibre with resin adhesives falls on mesh belt, forming a homogeneous cotton blanket and then it is solidified in thermostat curing oven. After the shape of it is fixed, the glass wool will become predetermined products after cut and then be packed.The main raw material of rock wool products is fine basalt rock. The basalt rock is made into inorganic fiber after meited under high temperature and processed in the high-speed centrifugal device. Then the arrangement structure of the fibre is changed after it is add with special binder and dust laying oil and put in a special device. In the last step, the product is solidified and become a new lightweight thermal insulation material. Depending on the application, it can be processed into wool board, rock wool blanket and wool shell.Compared with rock wool, glass wool is of lower unit weight, less shot content, lower thermal conductivity, long service life and high tenacity fiber, rock wool. However, the maximum operating temperature of rock wool is about 600 degrees Celsius while the glass wool is only about 260 degrees Celsius.Glass woolwool is generally used in thermal insulation part less than 200 degrees Celsius and is mainly used for thermal insulation in general buildings or low temperature pipes. Rock wool is generally used at thermal insulation part with the temperature of 500 degrees Celsius and is mainly used for heat perservation of of high temperature heat pipes or electrical equipment.
The density (ie weight) of high-density rock wool board is large, but the hardness of it is not necessarily strong. The density of hard rock wool board is not necessarily high, but its hardness is very large, which is related to the fibre of rock wool, gel content and technical procedures.It is used in tanks with large plane and curvature radius, boilers, large steel structure and glass curtain wall.Attched with aluminium foil, it can better meet the requirement of heating air duct of air conditioning, insulating the cold water pipe and warm water pipe, block the moisture and insulating the building.When produced, marine and water-repellent wool insulation board is added with water-repellent additive enabling it to resist moisture.Rock wool board for boat is used for insulating heat and resisting fire for boats. Water-repellent wool board for thermal insulation in vehicles, mobile equipment, cold storage, air conditioning ducts and humid environment. It is also used in places that have certain requirements for moisture resistance.
