Optimisation of recycled moulding sand composition using the mixture design method

Kul M., Akgul B., Koskay K. O., Alsan A. E., Karaca B.

International Journal of Cast Metals Research, cilt.34, sa.2, ss.104-109, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Sayı: 2
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1080/13640461.2021.1936381
  • Dergi Adı: International Journal of Cast Metals Research
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.104-109
  • Anahtar Kelimeler: bentonite, casting, coal dust, humidity, mixture design method, optimisation, recovery, Used sand
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

© 2021 Informa UK Limited, trading as Taylor & Francis Group.In the cast iron industry, mould sand quality and the most efficient recovery of used sand into the system are critical. For this purpose, the optimum values of the factors (humidity, active bentonite and coal dust) affecting the green strength, gas permeability and shear strength of the mould sand were determined in this study. The optimum mixture ratio, which makes the green strength, gas permeability and shear strength of the mould sand the best, was made by using the mixture design method. As a result of the studies, optimum casting sand composition; the percentage of moisture content, the percentage of coal dust, the percentage of active bentonite and the percentage of recycle sand were determined as 3.92%, 0.05%, 0.30% and 95.73%, respectively. The green compression strength(B1) 23.5 N/cm2, shear strength(B2) 7.7 N/cm2 and gas permeability (B3) 91 mmWS of the conventional cast sand prepared in this optimum composition were measured.