Abstract: The structure of bearing alloy is that hard phase particles are evenly distributed on the soft phase matrix, or soft phase particles are evenly distributed on the hard phase matrix. Bearing alloy shall have good wear resistance and wear reduction
The structural structure of bearing alloy is that hard phase particles are evenly distributed on the soft phase matrix, or soft phase particles are evenly distributed on the hard phase matrix. Bearing alloy shall have good wear resistance and wear reduction performance; Have certain compressive strength and hardness, and have sufficient fatigue strength and bearing capacity; Good plasticity and impact toughness; Good anti occlusion; Good adaptability; Good mosaic; It shall have good thermal conductivity, corrosion resistance and small coefficient of thermal expansion. Bearing materials shall have small friction coefficient with the shaft surface, less wear of the journal, and be able to withstand large specific pressure, small expansion coefficient, good corrosion resistance, etc. For engines with general performance, bearing shells made of high tin aluminum alloy have a high performance price ratio. Therefore, it has become one of the main materials for bearing shells of internal combustion engines. With the continuous development of science and technology and the automobile industry, the design of modern engines is developing in the direction of "high speed, high pressure, high power and low energy consumption". Researchers have applied micro and nano technology in the field of special antifriction alloy materials, and have successively developed microcrystalline alloy materials that have special needs to meet certain individual properties, The special microcrystalline bearing materials not only fill the gap of antifriction materials in China, but also maintain the synchronous development of microcrystalline alloy technology with the world in terms of the single performance of materials.
(Editor in charge: editor in chief)
