Rock wool is made from basalt, diabase and dolomite with melting at 1500℃ to high speed spinners fibers. Then the fibers are collected together to form the original wool mat through negative pressure resulted from suction. The original wool mats then pass through pendulum, crimping and pressing process, get into the curing oven through which the wool mats are cured and shape up to different kinds of products such as board, mat and pipe section etc with different usage.
Application Field:
Rock wool pipe is designed for both hot and cold piping to conserve energy, maintain process temperatures, provide personnel protection, prevent condensation, and to reduce noise emission of the pipelines.
Distinctive advantages:
Item | Unit | board | blanket | pipe | test method |
density | Kg/m3 | 60-200 | 60-110 | 60-150 | GB5480.3 |
allowable deviation | % | ±2 | ±10 | ±10 | |
Average fiber | um | 4月7日 | 4月7日 | 4月7日 | GB5480.4 |
Slag content(particle diameter>0.25mm) | % | ≤4 | ≤6 | ≤5 | GB5480.5 |
water absorption | % | ≤2 | ≤2 | ≤2 | GB/GB16401-1996 |
Temperature absorption rate | % | ≤1.0 | ≤1.0 | ≤1.0 | GB5480.7 |
Hydrophobicity | % | ≥98 | ≥98 | ≥98 | B10299-88 |
The thermal shrinkage temperature under load | ℃ | ≥650 | ≥650 | ≥650 | GB11835-1998 |
organic content | % | ≤4% | ≤4% | ≤4% | GB11835-1998 |
Compressive strength(10% compression ratio) | kPa | ≥80 | ≥40 | ≥40 | GB/T13480-92 |
Peel strength | kPa | ≥14 | ≥14 | ≥14 | DIN52274 |
Non-combustibility | -- | A Grade | A Grade | A Grade | GB5465 |
Thermal conductivity(70℃) | W/mk | ≤0.041 | ≤0.041 | ≤0.041 | GB10294-88 |
Acidity coefficient | ≥1.8 | ≥1.8 | ≥1.8 | ||
Binder content | % | ≤3.0 | ≤3.0 | ≤3.0 |