Implementation of pressure effect into the rheological description of PIM materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F07%3A63505445" target="_blank" >RIV/70883521:28110/07:63505445 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Implementation of pressure effect into the rheological description of PIM materials

Original language 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 pressuredetermines 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.

Czech name

Implementace vlivu tlaku na reologické vlastnosti PIM materiálů

Czech description

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.

Type

D - Article in proceedings

CEP classification

JJ - Other materials

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Polymer Processing Society Europe/Africa Regional Meeting 2007 

ISBN

87-89753-56-9

ISSN

—

e-ISSN

—

Number of pages

5

Pages from-to

"CD1"-"CD5"

Publisher name

Hexagon Holding

Place of publication

Copenhagen

Event location

—

Event date

—

Type of event by nationality

—

UT code for WoS article

—