The spiral flow analysis on the injection molding of alumina powder - An experimental design

Kung-Chung Hsu, P. C. Tsai

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A spiral flow analysis based on the McLean-Anderson design method was conducted in studying the influence of each formulation component on the flow of alumina feedstocks. The mixtures were composed of alumina powder (AL), polypropylene resin (PP), paraffin wax (PW) and stearic acid (SA). Fourteen different formulations were designed and tested. The spiral flow distance (SFD) of each formulation as a function of ingredient concentration was measured and analyzed. The studied ranges of AL, PP, PW and SA were 87-89, 5-9.25, 3-7.25 and 0.75-1.5 wt%, respectively. It is observed that lower alumina content or higher binder content would obtain longer SFD of feedstocks. Both PW and SA are more effective than polypropylene (PP) in enhancing SFD. For alumina content less than 88%, PW is the most effective one. In contrast, SA becomes the most effective when the powder loading is higher than 88%.

Original languageEnglish
Pages (from-to)439-443
Number of pages5
JournalCeramics International
Volume21
Issue number6
DOIs
Publication statusPublished - 1995 Jan 1

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Paraffin waxes
Stearic acid
Aluminum Oxide
Injection molding
Powders
Design of experiments
Polypropylenes
Alumina
Feedstocks
Resins
Binders
stearic acid

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

The spiral flow analysis on the injection molding of alumina powder - An experimental design. / Hsu, Kung-Chung; Tsai, P. C.

In: Ceramics International, Vol. 21, No. 6, 01.01.1995, p. 439-443.

Research output: Contribution to journalArticle

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