Publication detail

Thermal removal of multicomponent binder from ceramic injection mouldings

TRUNEC, M. CIHLÁŘ, J.

Czech title

Tepelné odstraňování pojiva z keramických injekčně vstřikováných výlisků

English title

Thermal removal of multicomponent binder from ceramic injection mouldings

Type

journal article - other

Language

en

Original abstract

Thermal removal of polymer binder containing low-molecular-weight components from ceramic injection mouldings was studied. The effect of the shape and size of bodies on the process of binder removal was examined. Evaporation of low-molecular-weight components represented the most important process at the beginning of binder removal. It was found that a bed of activated carbon speed up removal of low-molecular-weight components. The mechanism of binder removal in a bed of activated carbon was described. Binder redistribution and evolution of porosity in the body during binder removal was investigated. A high rate of binder removal resulted in non-uniform binder distribution in the body. The formation of defects due to non-uniform binder removal was described and requirements for their elimination were proposed.

Czech abstract

Bylo studováno tepelné odstraňování polymerního pojiva s obsahem nízkomolekulárních složek z keramických injekčně vstřikovaných výlisků. Byl zjišťován vliv tvaru a velikosti těles na průběh odstraňování pojiva. Vypařování složek s nízkou molekulovou hmotností představovalo nejdůležitější proces na počátku odstraňování pojiva. Byl popsán mechanismus odstraňování pojiva v zásypu aktivního uhlí, který umožnil zrychlit odstraňování pojiva. Bylo zkoumáno přerozdělování pojiva a vznik pórovitosti v tělese během odstraňování pojiva. Vysoká rychlost odstraňování pojiva způsobila nerovnoměrné rozdělení pojiva v tělese. Byl popsán vznik defektů způsobených nerovnoměrným odstraňováním pojiva a navržen způsob jejich eliminace.

English abstract

Thermal removal of polymer binder containing low-molecular-weight components from ceramic injection mouldings was studied. The effect of the shape and size of bodies on the process of binder removal was examined. Evaporation of low-molecular-weight components represented the most important process at the beginning of binder removal. It was found that a bed of activated carbon speed up removal of low-molecular-weight components. The mechanism of binder removal in a bed of activated carbon was described. Binder redistribution and evolution of porosity in the body during binder removal was investigated. A high rate of binder removal resulted in non-uniform binder distribution in the body. The formation of defects due to non-uniform binder removal was described and requirements for their elimination were proposed.

Keywords in English

Al2O3, Binder removal, Defects, Injection moulding, Porosity

RIV year

2002

Released

15.08.2002

Publisher

Elsevier Science

ISSN

0955-2219

Journal

Journal of the European Ceramic Society

Volume

22

Number

13

Pages from–to

2231–2241

Pages count

11

BIBTEX


@article{BUT40657,
  author="Martin {Trunec} and Jaroslav {Cihlář},
  title="Thermal removal of multicomponent binder from ceramic injection mouldings",
  journal="Journal of the European Ceramic Society",
  year="2002",
  volume="22",
  number="13",
  month="August",
  pages="2231--2241",
  publisher="Elsevier Science",
  issn="0955-2219"
}