[Catalog:News] [Date:2020-9-25] [Hits:] [Return]

Asbestos it is a kind of silicate mineral with fiber crystalline structure, its fiber is very small, the naked eye is not observed, it is easy to be inhaled lower respiratory tract, induce the formation of pneumoconiosis, lung cancer, thoracic peritoneal mesothelioma, other malignant tumors...
Asbestos it is a kind of silicate mineral that has fibrous crystalline structure, its fiber is very small, naked eye observation is less than, be inhaled easily lower respiratory tract, cause form pneumoconiosis, lung cancer, thoracoperitoneum mesothelioma, other malignant tumor to wait, be classified by the world Health organization grade one carcinogen, a lot of countries have banned the use of asbestos.
The world automobile industry developed rapidly in asbestos-free friction materials research and development, launched the asbestos-free semimetal friction material, sintered metal friction materials, alternative fiber reinforced polymers or adhesive friction material, composite fiber friction materials, ceramic fiber friction material, such as their common features are:
1, there is no asbestos composition, followed by alternative fibers or polymers as reinforcement;
2, increased the metal composition, to improve its service humidity and life;
3, added a variety of wattle or filler, to improve friction stability and anti-adhesion, reduce brake noise and tremor phenomenon.