论文部分内容阅读
粉末冶金刹车材料是现代飞机刹车装置中重要材料之一。它主要用来制造刹车片以实现飞机着陆的制动。随着现代航空工业的迅速发展,飞机的着陆速度和动能十分巨大,其刹车盘表面瞬时温升高达1000℃。三叉戟飞机(最大巡航速度0.9M)的着陆速度高达260公里/小时。因此,不仅要求摩擦副材料具有足够大的摩擦系数,而且要求摩擦系数随温度、压力、速度的变化很小,具有高的耐磨性,足
Powder metallurgy brake material is one of the important materials in modern aircraft brakes. It is mainly used to make brake pads to achieve the landing of the aircraft brake. With the rapid development of modern aviation industry, the aircraft landing speed and kinetic energy is enormous, the instantaneous temperature rise of the brake disc surface as high as 1000 ℃. Trident aircraft (maximum cruising speed of 0.9M) landing speed of up to 260 km / h. Therefore, it is not only required that the friction material has a sufficiently large friction coefficient, but also that the friction coefficient should be small with temperature, pressure, and speed, have high wear resistance,