Paper Title:
Research on the Way of Obtaining the Parts of Sintered Powders by Injection Moulding
  Abstract

For obtaining small parts with complex shape, for which a finishing operation cannot be applied easily, injection forming can be used. For a successful applying of this procedure not only the conditions of the injection process deployment must be taken into consideration, but also the conditions of the binder removal. These conditions impose, in a big measure, the feedstock characteristics, especially the ones of the binder used. The characteristics of the binder mixed with powder influence the injection process, the debinding process and the quality of the injected and sintered parts. Regarding that the binders used are formed from many components, it is very important to know the measure that each of them determines the rheological characteristics of the mixture. In the research made, a binder was used formed from polyethylene, paraffin and stearic acid, a binder which is often used to obtain mixtures for injection. It was watched how these components influence the binder characteristics, the injection process deployment and the effect they have on the quality of the debinded parts.

  Info
Periodical
Edited by
Ionel Chicinaş and Liviu Brânduşan
Pages
237-240
DOI
10.4028/www.scientific.net/MSF.672.237
Citation
L. Brânduşan, "Research on the Way of Obtaining the Parts of Sintered Powders by Injection Moulding", Materials Science Forum, Vol. 672, pp. 237-240, 2011
Online since
January 2011
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Price
$32.00
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Chapter 6: Polymers and Composites
Abstract:Metal injection moulding (MIM) feedstock is a mixture of metal powder and binder. The function of the binder system is to provide flow...
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