- Pfad:
-
Band Nr. 52, 5. November 1971
Zeitschrift
Aufsatz
- Titel:
- Injection molding of complex hollow products using an eco-friendly salt core technique
- Erschienen:
-
Berlin: de Gruyter, 2025
- Sprache:
- Englisch
- Zusammenfassung:
- Abstract: Molding complex hollow products with intricate contours via plastic injection molding remains a major challenge due to mold design limitations. For example, components such as plastic intake manifolds are typically molded in separate segments and subsequently assembled. Traditional sand or salt cores used in metal casting are unsuitable for injection molding because molten plastics are thousands to millions of times more viscous than molten metals. As a result, these cores are prone to fracture under high injection pressure. This study presents a novel salt core technique to overcome this constraint. The core is fabricated using a sugar-based syrup with an optimized sugar-to-salt ratio, and a balanced mix of coarse and fine salt particles to reduce voids and improve structural compactness. The method’s effectiveness is demonstrated through successful molding of a Tri-Ring connector, a part typically difficult to produce integrally. Core shift behavior was analyzed through CAE simulations and confirmed by experimental validation. The dimensional precision of the molded product was further optimized using the Taguchi method. This work highlights a sustainable and practical solution for producing complex, high-precision molded parts without assembly.
- Umfang:
- Online-Ressource
- Fußnote:
- Kein Open Access
- Archivierung/Langzeitarchivierung gewährleistet
- Schlagworte:
- encapsulated salt core ; lost core injection molding ; sugar-based binder ; complex hollow products
- ZLB-Systematik:
- Technik
- Sammlung:
- Technik
- Copyright:
- Rechte vorbehalten
- Zugriffsberechtigung:
- Eingeschränkter Zugang mit Nutzungsbeschränkungen
