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Pratama, Dimas Fandi
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Mechanical Engineering

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Pengaruh Jenis Scrap Besi Sebagai Bahan Utama Pengecoran Logam Terhadap Komposisi Dan Kekerasan Besi Cor Doni Saputra, Agus Riyana; Pratama, Dimas Fandi; Rachman, Firman Fauzi
Journal of Energy, Materials, & Manufacturing Technology Vol 4 No 01 (2025): Journal of Energy, Materials, & Manufacturing Technology
Publisher : Unit Penelitian, dan Pengabdian Masyarakat (UPPM) Politeknik ATI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61844/jemmtec.v4i01.965

Abstract

Scrap metal waste is a type of metal waste that comes from production processes, construction, or items that are no longer used. Although this waste is often considered a useless material, it has great potential to be recycled and reused in the foundry industry, especially in the manufacture of cast iron and other iron products. The scrap metal recycling process has significant economic benefits, such as reducing the need for primary raw materials and saving energy. In scrap metal, the element content varies depending on the type of scrap metal used, the source of the waste, and previous processes that may have changed the chemical composition of the material. For example, scrap metal that comes from metal products with low carbon content, such as low carbon steel, will produce recycled products with low hardness and low bending ability. On the other hand, scrap metal from cast iron or high carbon steel produces products with better hardness properties but lower strength. Cast iron is a type of metal that is widely used in the manufacturing industry for maintenance and production processes. Therefore, in this research, an analysis of the hardness test of cast iron material made from scrap iron will be carried out using the Rockwell Method.
Analisis Pengaruh Penambahan Karbon Pada Proses Peleburan Besi Scrap Terhadap Komposisi dan Kekerasan Besi Cor Pratama, Dimas Fandi; Gugun Gundara; Agus Riyana Doni Saputra; Firman Fauzi Rachman
Journal of Energy, Materials, & Manufacturing Technology Vol 4 No 01 (2025): Journal of Energy, Materials, & Manufacturing Technology
Publisher : Unit Penelitian, dan Pengabdian Masyarakat (UPPM) Politeknik ATI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61844/jemmtec.v4i01.975

Abstract

Banyak industri pengecoran logam yang menggunakan bahan skrap sebagai bahan utamanya. Scrap besi sebagai bahan utama pengecoran logam, memiliki variasi komposisi kimia dan karakteristik material yang berbeda. Penelitian ini memilki tujuan untuk mengkaji pengaruh jenis scrap besi sebagai bahan utama dalam pengecoran logam terhadap komposisi kimia dan kekerasan besi cor yang dihasilkan. Metode eksperimen nyata digunakan dalam penelitian ini. Jenis scrap besi yang digunakan dalam penelitian ini adalah scrap besi plat, scrap besi return, dan scrap besi kombinasi. Proses peleburan logam menggunakan tungku induksi dengan suhu peleburan ±1400°C selama 2,5 jam. Analisis data hasil uji komposisi dan uji kekerasan menggunakan metode deskriptif kuantitatif. Hasil dari pengujian dan analisis, data yang diperoleh menunjukkan bahwa : (1)Jenis scrap besi kombinasi memiliki kadar unsur karbon, mangan dan silikon sebesar 3.543%, 0.709%, dan 1.124%, dengan nilai kekerasan Rockwell sebesar 95,80 HRb, nilai ini adalah paling tinggi diantara variable jenis scrap yang lainnya. (2) Jenis scrap secara signifikan memberi dampak terhadap kadar kandungan unsur dan nilai kekerasan besi cor. (3)Kandungan unsur yang paling berpengaruh terhadap nilai kekerasan besi cor adalah unsur karbon dan mangan.
Co-Authors Agus Riyana Doni Saputra Doni Saputra, Agus Riyana Firman Fauzi Rachman Gugun Gundara Rachman, Firman Fauzi