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All Journal Info-Teknik Conference on Innovation and Application of Science and Technology (CIASTECH) IJoASER (International Journal on Advanced Science, Education, and Religion) Jurnal Al-Qiyam Jurnal Tana Mana
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Journal : Info-Teknik

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PERBANDINGAN SUHU PENYIMPANAN ELEKTRODA TERHADAP KEKERASAN BAJA KARBON Gumono Gumono; Syamsul Hadi; Bambang Irawan
INFO-TEKNIK Vol 19, No 1 (2018): INFOTEKNIK Vol. 19 No. 1 Juli 2018
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v19i1.5139

Abstract

The welding is the process of connecting two metals, where factors that influence are current, voltage, plate thickness, gap shape and heating temperature of the electrode. The heating of this electrode aims to stabilize the arc arising during welding. The objective of the study was to determine the maximum hardness of low carbon steel welding with E 7018, with temperature of electrode storage at temperature 50, 75 and 100 ° C. Determine the maximum change in the hardness of the welded by using heated electrodes preheated to an initial temperature of 50, 75 and 100 ° C. Compare its hardness to the standard. The specimen-making method is based on JIS Z 3121, further data are compared against the standard. The result of maximum hardness value for slit I is 175HV and for slit V 264HV in weld area with temperature 75 ° C, hardness change of 33HV for temperature 100 °C.
ANALISIS PERUBAHAN SUHU PEMANASAN PADA STAINLESS STEELS 304 Gumono Gumono; R. N. Akhsanu Takwim; Sugeng Hadi
INFO-TEKNIK Vol 18, No 1 (2017): INFOTEKNIK Vol. 18 No. 1 2017
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v18i1.3887

Abstract

Stainless steels are widely used for household purposes, such as spoons, forks and knives that serve as cutting tools are currently widely used. Based on the micron structure this metal is grouped into austenitic, ferritic, martensitic, duplex and prepication hardening. The purpose of writing determines the optimum hardness value of stainless steel 304 after getting treatment with nitrogen media. Gets optimum hardness when using nitric acid media. At what temperature and what type of cooling is used to obtain optimum hardness. Research method by comparing stainless steel before and after experiencing heat treatment process by using nitrogen cooling medium and nitric acid. Hardness testing using rockwell method. Optimum hardness results occur at 400 °C with 20.33HRc nitrogen cooling medium and 500 °C of nitric acidic acid 19,67HRc
Co-Authors Agus Setiawan Bambang Irawan Elka Faizal Hadi Samsul Hangga Wicaksono Mira Mira Nila Aulia R.N. Akhsanu Takwim, R.N. Akhsanu Rilis Eka Perkasa Sugeng Hadi Sugeng Hadi Susilo Sugeng Hadi Susilo Suyanta Suyanta Syamsul Hadi Yuniarto Agus Winoko Zahratul Jannah Zahratul Jannah AR