|
Life of low- reason analysis in casting iron ball to a cement plant , and for the requirements of the material properties of the working conditions , the paste block casting penetration Prepared WC , SiC / low chromium white cast iron matrix surface composites . Use orthogonal experiment to optimize the design of the process , the type of binder , pouring temperature , cream block thickness , enhanced content and modification of particle infiltration casting quality . Sample macro-and microstructure and composition analysis to select the optimum process parameters . Experimental results show that : the ordinary sand casting process , the cream block casting penetration Prepared WC , SiC / low chromium white cast iron surface composite , in the pouring temperature of 1550 ° C , WC content of 45% , cream block thickness of 2mm quality of the nitrided layer formed , the relative wear resistance . Coating treatment can improve the quality and the relative wear resistance of the nitrided layer , compared to deterioration relative wear resistance of high chromium cast iron can reach 3.12 .
|