Swell and Sag Behavior in Annular Parison Extrusion of Polyethylene/ Polypropylene Blends;

Design of Parisons and Blowing Mandrels for Injection Blow Mouldings;

Free Inflation Dynamics of Parison in Extrusion Blow Molding;

In the numerical simulation of parison formation, there are two main methods: one is to treat the polymer melt as a Newtonian fluid, the other is as a viscoelastic fluid.

Parison formation is a critical stage in extr usion blow molding.

For the parison forming,a explanation aboutspecialized method and theory basis of numerical simulation adopted by researchersin China and abroad is given.

For the parison forming, the explanation had been given about method and theory basis of numerical simulation adopted by researchers at civil and abroad, and the method of neural net was review empnatically.

Main Quality Defects And Controlling Methods for CC Beam Blank;

Numerical simulation of thermal processing in continuously cast beam blank;

Effects of Mould Flux on Surface Quality of Continuous Casting Beam Blank;

then, it made use of Cimatron to carry out molding rough machining on heterotype stock.

On-line measurement technology of parison wall thickness for extrusion blow molding;

A calculating formula of the relationship between beam gap and parison wall thickness is presented.