Analysis of Influencing Factors and Process Control of Inner Cavity Quality of Automobile Engine Cylinder Block
With the development of automobile lightweight,the wall thickness requirement of engine inner cavity is getting smaller and smaller.The influencing factors of inner cavity quality were analyzed and the process was improved.The effects of adding sintered ceramic sand,cellulose and chromium spinel to silica sand core on the high temperature and normal temperature characteristics of sand core and product quality were introduced.The effects of thermal explosion,thermal expansion and sintering properties of the coating on the quality of the inner cavity and the mechanism of powder action were pointed out.The sand shooting simulation technology was used to analyze the density of the sand core and improve the quality of the inner cavity.
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