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Sri Harmanto
Jurusan Teknik Mesin Politeknik Negeri Semarang
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Optimizing curing parameters to enhanced the compressive strength and toughness properties of Resin-Coated Sand (RCS) in foundry applications Khoryanton, Ampala; Harmanto, Sri; Mamba’udin, Ahmad; Alfauzi, Abdul Syukur; Tristijanto, Hery; Abidin, Zaenal; Yanuar, Padang; Putri, Farika Tono; Nugroho, Wahyu Isti; Kristiawan, Timotius Anggit; Sugiono, Friska Ayu Fitriani; Mujiarto, Iman; Riadini, Elfrida Rizky; Wirawan, Yuris Bahadur
Jurnal Polimesin Vol 23, No 2 (2025): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i2.6124

Abstract

Conventional heating methods remain prevalent among small and medium-sized enterprises (SMEs) for aluminum mold thermal regulation during resin-coated sand (RCS) core production. Inconsistent thermal regulation significantly alters the characteristics of resin-coated sand cores. This study aims to investigate the effect of curing parameters on the compressive strength and toughness of the resin-coated sand. The RCS specimens were prepared using an aluminum mold that underwent controlled thermal treatment in an electrical furnace. The thermal treatment is performed by processing specimens across a curing temperature range of 200-300°C and varying curing time from 3 to 15 minutes. HDPE polymer was proposed as the RCS binder. Compressive and impact tests were carried out to determine the characteristics of resin-coated sand. The results showed a non-linear relationship between curing parameters and mechanical properties. Although moderate curing time and higher temperatures initially improve compressive strength and toughness, exceeding optimal thresholds leads to the degradation of these mechanical characteristics. The highest mechanical properties (compressive strength = 38.4 MPa, toughness = 0.43 MPa) are achieved through a curing temperature of 250°C and a curing time of 9 minutes. This study provides valuable insights into determining the optimal parameters for processing resin-coated sand cores or molds with superior compressive and toughness properties.
Co-Authors Abdul Hamid Achmad, Fariz Agus Pramono Ahmad Mamba'udin Ahmad Supriyadi Alfauzi, Abdul Syukur Ardjo, Anwar Sukito Arif Pambekti Ayu Janitra, Atikah Bagas, Alfian Bambang Tjahjono Eko Saputra Elfrida Rizky Riadini Gunawan Widodo, Ign. Hery Tristijanto Iyadul, Fatih Khoryanton, Ampala Moch. Abdul Kodir Nailul Ulum, Muhammad Showi Padang Yanuar Prihatmini, Eri Purnomo, Adhy Putri, Farika Tono Safriana, Eni Satito, Aryo Sugiono, Friska Ayu Fitriani Sugiono, Friska Ayu Fitrianti Tengku Riza Zarzani N Timotius Anggit Kristiawan Wahyu Isti Nugroho Widodo, Ignatius Gunawan Yanuar Hafiz, Muchamad Yuris Bahadur Wirawan, Yuris Bahadur Zaenal Abidin