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Rockwool Fiber/mineral Fiber China Factory , Find Complete Details about Rockwool Fiber/mineral Fiber China Factory,Rock Wool Fiber,Mineral Fiber,Rock Wool Fiber Factory from Mineral Wool Supplier or Manufacturer-Shenzhen Yataida High-Tech Co., Ltd.
rockwool fiber/mineral fiber China factory
Rock Wool Fibre is short fibre made of basalt and minerals through process of melting, spinning, resin coating and breaking. It is suitable for asbestos free friction materials, disc pad particularly.
Product advantages include:
1) low cost, help to substantially bring down the cost of asbestos free friction material.
2) comparing with glass fibres and wollastonite, it reduces noise and judder of frriction material as well as improving the wear resistance
3) comparatively low melting point makes the resin coated rock wool softer at high temperature, which reduces the wear of rotor as well as assisting adhesion at high temperature. so it improves the wear resistance of friction materials at high temperature
4) It is the important substitute of asbestos for friction materials.
DATA SHEET OF REK-5SE/7SE
DATA | AVERAGE / TORORANCE | |
REK-7SE | REK-5SE | |
Shot content | > 125 μm av.2%wt max.4%wt | > 125 μm Av.3%wt Max.5%wt |
Fiber diameter (mass wt. av.) | 7.5 micron | 7.5micron |
Fiber diameter (num. av.) | 3.5 micron | 3.5 micron |
Fiber length | 230 ± 50 micron | 230 ± 50 micron |
Bulck density | 0.30 m2/g | 0.30 m2/g |
LOI | max. 3 %wt | max. 6.5 %wt |
Moisture | max. 0.6 %wt | max. 0.6 %wt |
Color | Celadon | Celadon |
Hardness | 6 Mohs | 6 Mohs |
Vickers hardness | 645 N/mm2 | 645 N/mm2 |
Melting point | > 1000 ℃ | > 1000 ℃ |
Density | 2.55 ± 0.20 g/cm3 | 2.55 ± 0.20 g/cm3 |
SiO2 | 40%-45% | 40%-45% |
Al2O3 | 14%-25% | 14%-25% |
CaO+MgO | 21%-25% | 21%-25% |
FeO | 4%-6% | 4%-6% |
K2O+Na2O | 4%-5% | 4%-5% |
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