Investigation of the TiO۲/SiC/SiO۲ Coating Effect On the Wear Rate of Needle Graphite Electrode by using Electrical Discharge Machining
Publish place: International Journal of Advanced Design and Manufacturing Technology، Vol: 14، Issue: 2
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_ADMTL-14-2_006
تاریخ نمایه سازی: 24 مرداد 1400
Abstract:
Needle graphite electrodes are one of the main parts used in electric arc furnaces. These electrodes have a significant impact on melt quality and product quality, and their consumption is one of the most important parameters of steel production cost in EAF furnaces. Therefore, reducing the consumption of needle graphite electrodes in these furnaces is very important. The main reasons for continuous use of needle graphite electrodes in arc furnaces are oxidation of the sidewalls and sublimation of their tips, and many solutions have been proposed to reduce them. In the present study, the effect of coating consisting of TiO۲/SiC/SiO۲ elements on the wear rate of the needle graphite electrode in the sublimation state is investigated using EDM (Electrical Discharge Machining- Spark device). For this purpose, the effect of voltage, current, pulse on time and pulse off time on the electrode wear rate are investigated and in this regard, Taguchi design method has been used to reduce the number of experiments. Based on the test results, TiO۲/SiC/SiO۲ coating reduces the wear rate of the needle graphite electrode due to sublimation.
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Authors
Hossein Alian Moghadam
Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr /Isfahan, Iran
majid jabbari
Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr/Isfahan, Iran
Saeed Daneshmand
Department of Mechanical Engineering, Majlesi Branch, Islamic Azad University, Isfahan, Iran
Saeid Rasouli Jazi
Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr /Isfahan, Iran
Arezoo Khosravi
Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr /Isfahan, Iran
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