166results about How to "To achieve the purpose of gap filling" patented technology

A method for preparing an ethyl alcohol dispersion zirconium boride silicon carbide-carbon fiber friction material is characterized in that carbonization is conducted on a graphited carbon fiber blanket with the density of 0.1-1.8 g / cm3, then ethyl alcohol dispersion zirconium boride filling, silicon carbide deposition and submerged siliconizing are conducted in sequence, and finally nitriding is conducted in the nitrogen atmosphere to generate the ethyl alcohol dispersion zirconium boride silicon carbide-carbon fiber friction material. The friction material is prepared through carburization, zirconium boride filling, silicon carbide deposition, submerged siliconizing and nitriding of the graphited carbon fiber blanket, has high strength, tenacity and friction performance, and is adaptable to various weather conditions.

The invention provides a preparing method for a synthetic fat dispersed hafnium boride silicon carbide-carbon fiber friction material. The preparing method is characterized in that a graphited carbon fiber blanket with the density being 0.1-1.8 g / cm<3> is subjected to synthetic fat dispersed hafnium boride filling treatment after being subjected to carburizing treatment, then silicon carbide deposition treatment is carried out, then burying siliconizing treatment is carried out, and then nitridation treatment is carried out in nitrogen atmosphere, so that the synthetic fat dispersed hafnium boride silicon carbide-carbon fiber friction material is prepared. According to the method, the graphited carbon fiber blanket is adopted for being subjected to carburization, hafnium boride filling, silicon carbide deposition, burying siliconizing, nitridation and the like to prepare the friction material, and the prepared friction material is high in strength, toughness and friction performance, and capable of adapting to various weather conditions.

The invention discloses a preparation method for an ultrasonically dispersed titanium boride-boron carbide-carbon fiber friction material. The preparation method is characterized in that a graphited carbon fiber blanket with the density between 0.1 g / cm<3> and 1.8 g / cm<3> is subjected to carbonization, boron carbide deposition, ultrasonically dispersed titanium boride filling, buried siliconization and nitridation in a nitrogen atmosphere in sequence to prepare the ultrasonically dispersed titanium boride-boron carbide-carbon fiber friction material. According to the preparation method, the graphited carbon fiber blanket is subjected to carburization, silicon carbide deposition, titanium boride filling, buried siliconization, nitridation and other steps to prepare the friction material, and the prepared friction material is high in strength, tenacity and friction performance and adaptive to various weather conditions.