Pengaruh Holding Time (Waktu Tahan) Dan Variasi Media Quenching (Pendinginan) Terhadap Nilai Kekerasan Baja Karbon Rendah ST 42 Pada Proses Pengkarbonan Padat Menggunakan Arang Batok Biji Pala (Myristica fagrans)
DOI:
https://doi.org/10.31959/js.v10i1.361Keywords:
Keywords, Low Carbon Steel, Solid Carbonization, Holding Time, Quenching Media, Hardness Value.Abstract
The purpose of this study was to obtain the hardness value of each variation of holding time and the variation of quenching medium (cooling) used. So we can compare the change in hardness value obtained and then can determine the retaining time as well as a good quenching medium to increase the hardness value of low carbon steel. The method used in this study is an experimental method. With a low carbon steel sample of ST 42 plate shaped as much as 26 pieces was done hardness testing before and after solid carburization process. Hardness testing is done by Rockwell B (HRB) method. The process of carburizing (pack carburizing), carried out at 950OC temperature with holding time is 1 hour, 2 hours, 3 hours and 4 hours. The results of this study indicate that the cooling medium which has a fast cooling rate of water media. While the seawater cooling medium can increase the hardness value of low carbon steel.
References
Bahtiar, Muh. Iqbal dan Supramono., 2014, Pengaruh Media Pendingin Minyak Pelumas Sae 40 Pada Proses Quenching dan Tempering Terhadap Ketangguhan Baja Karbon Rendah, Jurnal Mekanikal Vol. 5 No. 1: Januari 2014, pp: 455-463
Darmawi dan Andri Putra, M. Amin, 2009, Perbedaan Struktur Mikro, Kekerasan, Dan Ketangguhan Baja Hq 705 Bila Diquench Dan Ditemper Pada Media Es, Air Dan Oli, Jurnal Rekayasa Mesin, Vol. 9 No. 1 Maret 2009
Karmin., 2009, Pengendalian Proses Pengerasan Baja Dengan Metoda Quenching. Jurnal Austenit, Vol. 1, No.2, Oktober 2009, Politeknik Negeri Padang. Padang
Mulyadi., dan Sunitra, Eka., 2010, Kajian Perubahan Kekerasan dan Difusi Karbon Sebagai Akibat Dari Proses Karburisasi dan Proses Kuancing Pada Material Gigi Perontok Power Thresher. Jurnal Teknik Mesin. Vol. 7, No. 1, Juni 2010, 33-49, ISSN 1829-8958
Purboputro, I Pramuko., 2006, Pengaruh Waktu Penahanan Terhadap Sifat Mekanis Pada Proses Pengkarbonan Baja Mild Steel Roda Gigi Rantai Sepeda Motor RX Spesial, Jurnal MEDIA MESIN, Vol. 7, No. 1, Januari 2006, 9-16
Suratman, Rochim., 1994, Panduan Proses Perlakuan Panas, Lembaga Penelitian ITB, Bandung
Taonisi, Ahmad., Sudarja., dan Rahman, Muh Budi Nur., 2010, Pemanfaatan Limbah Cangkang Pala Sebagai Bahan Briket Arang Untuk Mendukung Kebutuhan Energi Nasional, Seminar Nasional Teknik Mesin, UMY, Yogyakarta
Van Vlack, H. Lawrence., 1992, Ilmu dan Teknologi Bahan (Ilmu Logam dan Bukan Logam). Terjemahan Srianti Djaprie, Edisi Kelima, Penerbit Erlangga, Jakarta
