New ceramic injection systems for hot chamber die casting of aluminium alloys

M. Okayasu, M. Hitomi, H. Yamazaki

Research output: Contribution to journalArticlepeer-review


The quality of hot chamber die cast aluminium alloys can vary, due to differences of casting conditions, in particular the casting pressure. This is caused by the plunger tip galling during the casting process. To solve this problem, a new injection system is proposed using a flexible movable plunger tip and an insert type shot sleeve. With this system, the plunger tip can be turned around and slid into the piston holder, which facilitates smooth insertion of the plunger into the shot sleeve. The proposed insert type sleeve can be made with a strong structure. Moreover, even if the sleeve is partially fractured, it can easily be replaced. With the proposed injection system, high quality hot chamber die cast components can be created. In addition, the maintenance cost of the injection system is dramatically reduced.

Original languageEnglish
Pages (from-to)246-249
Number of pages4
JournalInternational Journal of Cast Metals Research
Issue number4
Publication statusPublished - Aug 1 2010
Externally publishedYes


  • Aluminium alloy
  • Hot chamber die casting
  • Injection system
  • Plunger tip
  • Shot sleeve

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys


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