The effect of powder characteristics on pressure sensitivity of powder injection moulding compounds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F11%3A00351791" target="_blank" >RIV/67985874:_____/11:00351791 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28110/11:00000896

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of powder characteristics on pressure sensitivity of powder injection moulding compounds

Popis výsledku v původním jazyce

Pressure effect on the rheological behaviour of powder?polymer compounds intended for powder injection moulding was determined. A single-piston capillary rheometer modified by addition of a second chamber with a restricting needle valve generating backpressure increasing the pressure in the melted material during the flow through the die was employed to determine pressure sensitivity coefficients. The results obtained for three compounds varying in the characteristics of powders used confirmed that compounds at the loading level close to the maximum packing are more sensitive to pressure than polymer binder. It is shown that pressure sensitivity coefficients of these materials are strongly dependent on powder characteristics - particle size and particle size distribution. The highest coefficient (32.9 GPa1) was found for compound containing broad particle size distributed powder having a perceptible portion of small particles.

Název v anglickém jazyce

The effect of powder characteristics on pressure sensitivity of powder injection moulding compounds

Popis výsledku anglicky

Pressure effect on the rheological behaviour of powder?polymer compounds intended for powder injection moulding was determined. A single-piston capillary rheometer modified by addition of a second chamber with a restricting needle valve generating backpressure increasing the pressure in the melted material during the flow through the die was employed to determine pressure sensitivity coefficients. The results obtained for three compounds varying in the characteristics of powders used confirmed that compounds at the loading level close to the maximum packing are more sensitive to pressure than polymer binder. It is shown that pressure sensitivity coefficients of these materials are strongly dependent on powder characteristics - particle size and particle size distribution. The highest coefficient (32.9 GPa1) was found for compound containing broad particle size distributed powder having a perceptible portion of small particles.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

—

Projekt

<a href="/cs/project/GA103%2F08%2F1307" target="_blank" >GA103/08/1307: Reologické modelování toků polymerních materiálů za vysokých tlaků</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Powder Technology

ISSN

0032-5910

e-ISSN

—

Svazek periodika

206

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

5

Strana od-do

—

Kód UT WoS článku

000286299200001

EID výsledku v databázi Scopus

—