Improving the Mechanical Properties of Salt Core through Reinforcing Fibers

Ahrom Ryu, Soyeon Yoo, Min Seok Jeon, Dongkyun Kim, Kiwon Hong, Sahn Nahm, Ji Won Choi

Research output: Contribution to journalArticlepeer-review

Abstract

Salt cores have attracted considerable attention for their application to the casting process of electric vehicle parts as a solution to ecological issues. However, the salt core still has low mechanical strength for use in high-pressure die casting. In this study, we investigated the improvements in the bending strength of KCl-based salt cores resulting from the use of reinforcing materials. KCl and Na2CO3 powders were used as matrix materials, and glass fiber and carbon fiber were used as reinforcing materials. The effects of carbon fiber and glass fiber contents on the bending strength properties were investigated. Here, we obtained a new fiber-reinforced salt core composition with improved bending strength for high-pressure die casting by adding a relatively small amount of glass fiber (0.3 wt%). The reinforced salt core indicates the improved properties, including a bending strength of 49.3 Mpa, linear shrinkage of 1.5%, water solubility rate of 16.25 g/min·m2 in distilled water, and hygroscopic rate of 0.058%.

Original languageEnglish
Pages (from-to)159-163
Number of pages5
JournalJournal of Sensor Science and Technology
Volume32
Issue number3
DOIs
Publication statusPublished - 2023 May

Bibliographical note

Publisher Copyright:
© 2023, Korean Sensors Society. All rights reserved.

Keywords

  • Bending strength
  • Eco-friendly
  • High-pressure die casting
  • Reinforcing fiber
  • Salt core

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Engineering (miscellaneous)
  • Materials Science (miscellaneous)

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