摘要
采用粉末冶金工艺,以莫来石等为摩擦剂,并加入较大比例的金属组元镍、铬、钼,研制出一种重负荷铁基粉末冶金摩擦材料。研究了合金元素镍、铬、钼和摩擦组元莫来石对材料性能的影响。研究结果表明,在铁基材料中同时加入镍、铬、钼等多种合金元素,在提高材料密度和硬度的同时,可以提高摩擦系数和摩擦系数的稳度;莫来石则对改善材料的高温性能作用显著。其综合作用的结果使该材料的摩擦系数及其稳度有大幅提高,单位面积能载高达12700J/cm2,且磨损量小,是一种理想的、可广泛应用于各种高能重载工况下工作的高性能摩擦材料。该材料在国内首次应用于某型进口飞机刹车装置取得成功。
Taking 3Al2O3·2SiO2 and others as friction agents, adding a large proportion of metal constituents such as Ni,. Cr and Mo, Fe- based power metallurgy friction materials were fabricated by means of power metallurgy technology, which can be used in over loading conditions. The influences of alloy constituents and 3Al2O3 ·2SiO2 on material performance were studied. Study results indicate that Ni, Cr and Mo in Fe - base material can improve not only density and hardness of the material but also the friction coefficient and its stability, and 3Al2O3·2SiO2 performs well on ameliorating the performance of the material at high temperature. As result, this Fe- base friction material has higher friction coefficient and better stabilization and less wear extent and its energy load can reach 12 700 J/cm^2 . It＇s a satisfactory friction material and can be broadly applied in all sorts of high energy and over loading conditions and has been first used in the brake mechanism of a certain aircraft successfully in China.
出处
《粉末冶金技术》
EI
CAS
CSCD
北大核心
2007年第2期121-125,共5页
Powder Metallurgy Technology
关键词
粉末冶金工艺
粉末冶金摩擦材料
摩擦系数
能载
刹车
powder metallurgy technology
powder metallurgy friction material
friction coefficient
energy load
brake
