DE2726787

Process for obtaining a molded plastic structural frame article, comprising the steps of: (a) passing plastic material into a mold cavity, (b) injecting low viscosity fluid for pressurization, into said mold cavity, (c) ) coordinate fluid flow and pressure, volume and ratio between flow length and part thickness of the mold cavity, viscosity, elasticity, density and volume of the plastic, viscosity and density of the fluid, and stress fluid-plastic interfacial, to cause the pressurized fluid to penetrate said plastic material, and cause it to adopt the contour of said mold cavity, thereby forming a molded structural weft article, without causing the low viscosity fluid to pressurized, the passage through the flow front of plastic material and prevent the plastic material from substantially completely adopting the contour of said mold cavity, and (d) maintaining a positive pressure in the mold until the article is self-supporting. (Machine-translation by Google Translate, not legally binding)