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Models to predict the viscosity of metal injection molding feedstock materials as function of their formulation
Gonzalez-Gutierrez, Joamin (Avtor), Duretek, Ivica (Avtor), Kukla, Christian (Avtor), Poljšak, Andreja (Avtor), Bek, Marko (Avtor), Emri, Igor (Avtor), Holzer, Clemens (Avtor)

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Izvleček
The viscosity of feedstock materials is directly related to its processability during injection molding; therefore, being able to predict the viscosity of feedstock materials based on the individual properties of their components can greatly facilitate the formulation of these materials to tailor properties to improve their processability. Many empirical and semi-empirical models are available in the literature that can be used to predict the viscosity of polymeric blends and concentrated suspensions as a function of their formulation; these models can partly be used also for metal injection molding binders and feedstock materials. Among all available models, we made a narrow selection and used only simple models that do not require knowledge of molecular weight or density and have parameters with physical background. In this paper, we investigated the applicability of several of these models for two types of feedstock materials each one with different binder composition and powder loading. For each material, an optimal model was found, but each model was different; therefore, there is not a universal model that fits both materials investigated, which puts under question the underlying physical meaning of these models.

Jezik:Angleški jezik
Ključne besede:feedstock, metal injection molding, models, polypropylene, polyoxymethylene, polymer blends, powder content, rheology, stainless steel, viscosity
Vrsta gradiva:Članek v reviji (dk_c)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2016
Št. strani:f. 1-17
Številčenje:Vol. 6, iss. 6
UDK:531(045)
ISSN pri članku:2075-4701
DOI:10.3390/met6060129 Povezava se odpre v novem oknu
COBISS.SI-ID:14692379 Povezava se odpre v novem oknu
Število ogledov:29
Število prenosov:8
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Program financ.:Raziskovalni projekti - aplikativni
Številka projekta:P2-0264, L2-6761
Naslov:Trajnostni Polimerni materiali in Tehnologije, Izboljšava pretočnosti in gostote surovine za nano injekcijsko brizganje prahov (nanoPIM)
Akronim:
ID projekta:info:eu-repo/grantAgreement/ARRS/Raziskovalni%20projekti%20-%20aplikativni/P2-0264%2C%20L2-6761

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:surovina, injekcijsko brizganje kovinskega prahu, polypropilen, polioksimetilen, polimerne mešanice, vsebnost prahu, reologija, nerjaveče jeklo, viskoznost

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