In order to roll round billets with accurate roughing shapes by a three-high roughing mill and stabilize production, a flexible pass design method was used to optimize the traditional conjugate pass through the distortion design of the bottom, side wall and pressure difference of the pass, realizing the application of the conjugate round pass on the three-roll mill.

The notch groove on the roller of 650 cogging-down rolling mill with conjugate pass is so deep that the strength of the roller is influenced seriously with the result of that the accidents of roller breaking occur frequently.

Study on the influence of melt viscosity on co-injection molding;

On the basis of general Hele-Shaw model,the effect of processing parameters on the warpage in co-injection molding and the mechanism of warpage were studied.

The melt front breakthrough of the core is the main cause of forming waster in the co-injection molding.

Construction of knowledgesharing model in hospital management;

A sharing model for trusted computing platform;

To meet the requirements of product design through multidisciplinary collaboration,an interactive control technique was put forward on the basis of the sharing model in.

Study on synthesis and properties of copolycondensation polyimide molding powder;