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High-alumina fiber is a ceramic fiber material that has been specially treated to possess graphitization characteristics. This material combines the high-temperature resistance and oxidation resistance of ceramic fibers with the self-lubricating, high thermal conductivity, and low thermal expansion properties of graphite, showcasing unique performance advantages in various high-temperature environments. Below is a detailed introduction to graphitized ceramic fibers, their product characteristics, and their applications and roles in different industries, particularly in brake pads.
Pre-oxidized fiber made from carbon fiber is an intermediate product in the manufacturing of high-performance carbon fiber. It is derived from organic precursors such as polyacrylonitrile (PAN) or viscose, and is the form of fiber after stabilization treatment. In the process of producing carbon fiber, the precursor fibers first undergo pre-oxidation treatment, which causes chemical changes within the fibers, forming an intermediate material known as 'pre-oxidized fiber.' The carbon content of pre-oxidized fiber is relatively low, and its mechanical properties are weaker, but compared to the original organic fibers, its thermal stability and dimensional stability have significantly improved.
Wood fiber is an organic fiber material derived from natural wood, extracted from wood through chemical treatment or mechanical methods. In the manufacturing of brake pads, wood fiber is widely used due to its unique physical and chemical properties.
Aramid is a high-performance fiber material obtained from aramid fibers (such as para-aramid Kevlar® or meta-aramid Nomex®) through a special processing method. The application of aramid pulp in brake pad manufacturing is mainly based on several important roles.
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