The influence of sewage fat composition on rheological behavior of metal injection moulding
Influence of sewage ratio or Fat Oil Grease (FOG) on the feedstock rheological characteristic for optimal binder formulation in metal injection moulding is evaluated besides Polypropylene (PP) as a backbone binder. Powder loading of 62% of water atomised SS316L being used here to determine the possi...
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| Main Authors: | , , , |
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| Format: | Article |
| Published: |
Trans Tech Publications Inc
2014
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.4028/www.scientific.net/AMM.660.38 http://dx.doi.org/10.4028/www.scientific.net/AMM.660.38 http://eprints.uthm.edu.my/6474/1/THE_INFLUENCE_OF_SEWAGE_FAT_COMPOSITION_ON_RHEOLOGICAL.pdf |
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| Summary: | Influence of sewage ratio or Fat Oil Grease (FOG) on the feedstock rheological
characteristic for optimal binder formulation in metal injection moulding is evaluated besides
Polypropylene (PP) as a backbone binder. Powder loading of 62% of water atomised SS316L being
used here to determine the possibility of the best binder formulation which could be optimised for
optimal powder loading base on rheological characteristic analysis. Two binder formulations of PP
to SF being selected here are 60/40, 50/50 and 40/60 accordingly with the powder loading of 62%
each binder formulation. The analysis will be base on viscosity, shear rate, temperature, activation
energy, flow behaviour index and moldability index. It is found that from rheological result views,
binder with composition of 60/40 and 50/50 exhibit pseudoplastic behaviour or shear thinning
where the viscosity decrease with increasing shear rate. For 40/60 binder ratio is not suitable since
the behaviour of the flow indicates dilatants behaviour. After considering all the criteria in terms of
flow behaviour index, activation energy, viscosity and mouldability index, binder with ratio of
60/40 is evolve as a good selections. |
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