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Description
  • At present a wide range of powders (metallic or ceramic) are processed via Powder Injection Moulding (PIM) technology. The number of process variables in PIM processing is very large, and their correlations are only partially understood. Since the knowledge of the flow properties is the key factor for successful moulding step, this paper concerns rheological research related to the effect of pressure, which is still omitted in the computer simulations. Moreover, during moulding of PIM compounds pressure determines the homogeneous distribution of particles in the feedstock, and consequently the quality of the final PIM products. In literature it is speculated that sensitivity to pressure should decrease with loading level of powder in compound. Our results show the opposite; the pressure coefficients of PIM compounds are not linear decreasing function of powder content, and furthermore, pressure sensitivity can be shifted by processing and materials parameters.
  • At present a wide range of powders (metallic or ceramic) are processed via Powder Injection Moulding (PIM) technology. The number of process variables in PIM processing is very large, and their correlations are only partially understood. Since the knowledge of the flow properties is the key factor for successful moulding step, this paper concerns rheological research related to the effect of pressure, which is still omitted in the computer simulations. Moreover, during moulding of PIM compounds pressure determines the homogeneous distribution of particles in the feedstock, and consequently the quality of the final PIM products. In literature it is speculated that sensitivity to pressure should decrease with loading level of powder in compound. Our results show the opposite; the pressure coefficients of PIM compounds are not linear decreasing function of powder content, and furthermore, pressure sensitivity can be shifted by processing and materials parameters. (en)
  • Počet proměnných v PIM technologii je značně vysoký a jejich vzájemné vztahy jen částečně objasněny.Tokové vlastnosti jsou klíčové pro vstřikovací fázi PIM procesu, kde tlak hraje podstatnou roli. Tlaková závislost - oproti předpokladům z literatury - není lineární klesající funkcí koncentrace prášku, a navíc jsou závislé na charakteristice prášku. (cs)
Title
  • Implementation of pressure effect into the rheological description of PIM materials
  • Implementation of pressure effect into the rheological description of PIM materials (en)
  • Implementace vlivu tlaku na reologické vlastnosti PIM materiálů (cs)
skos:prefLabel
  • Implementation of pressure effect into the rheological description of PIM materials
  • Implementation of pressure effect into the rheological description of PIM materials (en)
  • Implementace vlivu tlaku na reologické vlastnosti PIM materiálů (cs)
skos:notation
  • RIV/70883521:28110/07:63505445!RIV08-MSM-28110___
http://linked.open.../vavai/riv/strany
  • CD1-CD5
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  • Z(MSM7088352101)
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  • 425704
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  • RIV/70883521:28110/07:63505445
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  • capillary flow; powder injection moulding; pressure effect (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [93216347EDBB]
http://linked.open...i/riv/mistoVydani
  • Copenhagen
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  • Polymer Processing Society Europe/Africa Regional Meeting 2007 
http://linked.open...in/vavai/riv/obor
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http://linked.open...cetTvurcuVysledku
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  • Sedláček, Tomáš
  • Sáha, Petr
  • Hausnerová, Berenika
http://linked.open...n/vavai/riv/zamer
number of pages
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  • Hexagon Holding
https://schema.org/isbn
  • 87-89753-56-9
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  • 28110
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