Gun-Boring Technologic Application On Processing Inlet And Exhaust System Of Diesel Engine

With the development of society, the living standard of people isconstantly raised, and the requirement to the various capabilities ofautomobile of people is also more and more higher. Among them motive forceand safe nature of automobile and emission capability have become the majorcontent that people are concerned about. Except possesses the design structureof first in, the process quality of each parts of automobile is also giving playto the utmost importance effect.As the nucleus parts of automobile, the process quality of the parts ofengine is the foundation of whole automobile process. And cylinder block andhead being the major part on the engine, his process precision influences verythe key to the capability of automobile, especially the good or bad of theprocess precision of Tappet hole,valve seat ring and valve stem guide hole ofcylinder block and head will directly influence automobile realizing ofmentioned above capability.This text started with the process precision of tappet hole,valve seatring and valve stem guide hole of cylinder block and head and the processprecision being to the influence of engine capability, by way of anglicizingmajor factor to influence the process precision, and studies and comparison onthe home and abroad several kinds process technology of valve seat ring andvalve stem guide hole of cylinder block and head, therefore analyses goes outthat the most effective and reliable technology method of processing tappethole,valve seat ring and valve stem guide hole of cylinder block and head isgun-boring new technology.Again according to practice produces of the gun-boring process newtechnology, verify that this new technology is fit for being used very much atlarge quantities of capacity of cylinder block and head producing and gainvery high process precision of tappet hole,valve seat ring and valve stemguide hole. At the same time what it is only constantly uses new technology,new technology, new material and new concept can suit the societyrequirement that constantly changes and constantly rises to the explanation.