外文翻译--干式薄壁套柴油机机体缸孔及缸套孔加工的探讨.docVIP

附录 专业英语翻译 Study of Dry Thin Wall Cylinder Liner for Diesel Enginecylinder Block Bore and Cylinder Bore Machining First chapter outline 1.1 air cylinders attrition Judges the engine whether needs the overhaul, mainly is decided by the air cylinder wearing capacity, the air cylinder air ram group attrition has Has the grinding compound to wear, the molecular □machinery wears, corrodes the characteristic which -- the machinery wears. In air cylinder working condition bad: Temperature high, pressure high, if oil feed insufficiency or lubrication condition bad, is easy to form the boundary friction, causes Do not select has the metallic contact, forms the adherency. The hot adherency repairs a vehicle the initial period operational phase in new Che Heda to be easy to produce. In order to resist the hot adherency, must enhance the components the manufacture and the assembly quality and the lubricating oil quality. The cylinder body if coordinates the piston curl, in the attrition question is an inalienable whole, two has dense Cuts relation. Generally besides special material, in two kind of mutual compounding ingredients one kind, if wearing capacity small Speech, then another kind of material wearing capacity also reduces along with it. Time the engine cylinder body manufacture precision and the assembly shape position common difference is remarkable to the cylinder wall attrition influence. In The manufacture and the overhaul are the strict control and the inspection air cylinder and the main axle altar hole spool thread verticality, the air cylinder hole to the main bearing Hole site, has the great significance to the engine service life. The cylinder wall attrition experiment proved that, When verticality error Increases to above 0.10mm when by 0.05mm, the cylinder wall wears correspondingly increases 30-40%; Cylinder hole column error Achieved when 0.04 mm, after exercises 20,000 kilometers, a cylinder hole column error increases to 0.10mm-0.12 mm. When an initia