Theoretical and Technological Fundamentals of Pressing Porous Powder Articles of the Complex Shape

摘要

Intensification of technological processes, limited by the square of the surface of an active element porous powder field, is possible at the expense of magnification of the square of the surface of the latter by its addition. Thus the overall dimensions of such skew field are preserved. The analytical dependence of the factor of magnification of the surface K on geometrical parameters of a powder article of the complex shape is obtained. The optimization of these parameters in view of technological limitations for the maximization of K is carried out. The technique of calculating of the intense ― deformed state of the powder skew field of the complex geometrical shape in the isostatic pressing is developed. The basic correlations permitting to calculate strain and deformation fields when pressing are gained. The technique of dry isostatic pressing of the article of the complex shape and the corresponding deforming instrument are developed.