Friction material and preparation method thereof

• Main Authors: CHE HONGXIA, HU RUOFEI, HOU QIUFEI
• Format: Patent
• Language: Chinese; English
• Published: 19.10.2021
• Subjects: BLASTING; BRAKES; CHEMISTRY; CLUTCHES; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WEAPONS

The invention provides a friction material and a preparation method thereof. The friction material comprises the following components in parts by weight: 13 parts of resin, 28 parts of reinforced fiber, 10-20 parts of ardealite and 39-49 parts of a filler, wherein the resin is multi-component modified phenolic resin, the reinforced fiber is asbestos-free composite fiber formed by compounding aramid fiber, steel fiber, glass fiber and wollastonite, the ardealite is prepared by directly taking a material from a storage yard, conducting drying for free water removal and conducting sieving with a 200-mesh screen, and the filler comprises tire powder, graphite, coke powder, barium sulfate, friction powder, aluminum oxide, iron ore powder, vermiculite, zinc oxide, bauxite and zinc stearate. The preparation method comprises the following steps: weighing the raw materials according to the ratio, intermittently conducting stirring for 10 minutes, transferring the stirred material into a mold, carrying out hot pressing