Injection pressing provides significant economy for manufacturing large-scale sandwich constructions made of frame (usually composites on the basis of polymer resins) and foam filler. However, such production is restricted with some technological problems: as a result of mechanical processing all foam fillers have opened cells on their surface through which the resin penetrates. This causes undesirable mass increase of parts made of multi-layer materials. The most economically efficient solution of resin infusion problem is smaller size of foam material cells.
The full text of the article is available in Russian in Plastiks magazine only. You can also order the translation of the article in English.
Complete or partial copying of articles in Internet is permitted only with special reference to "PLASTIKS: plastics processing industry" magazine's site, in printed media - with written permission of the editors.