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All Journal JIPF (Jurnal Ilmu Pendidikan Fisika) Jurnal Pertahanan dan Bela Negara Khazanah Sosial
Sovian Aritonang
Universitas Pertahanan
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The Simulation Model of Iron Sponge Plant Layout for the Defense Industry Based on Industry 4.0 Model Sovian Aritonang; Riyadi Juhana
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 5, No 1 (2020): January 2020
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.163 KB) | DOI: 10.26737/jipf.v5i1.1355

Abstract

The Industry 4.0 is a change in the perspective of how to view an industry based on the resources owned, to operate according to needs. The sponge iron industry is a raw material industry to support the steel industry which is intended as material for shipbuilding and combat vehicles used by the Indonesian National Millitary. It is necessary to plan and design a sponge iron plant with an Industrial 4.0 model. The implementation of the Industry 4.0 model aims to optimize the operational needs of the plant, especially the sponge iron plant, which is relatively rare in Indonesia. The concept of a factory layout (cellular layout, modular layout), the concept of lean manufacturing, as well as the concepts and principles of the smart factory (Cyber-Physical Systems) are concepts that will be applied in the planning and design of the Industrial 4.0 sponge iron plant layout. In order to produce an optimal layout, a simulation model using FlexSim 2018 Software and layout optimization is used the Computerized Relative Allocation of Facilities Technique (CRAFT) algorithm with the help of CRAFT Software Integrated Microsoft Excel 2019.
ANALYSIS OF THE PROCESS OF IRON SAND PROCESSING INTO SPONGE IRON IN ORDER TO SUPPORT THE DEFENSE INDUSTRY OF STEEL RAW MATERIALS Sovian Aritonang; Jupriyanto Jupriyanto; Riyadi Juhana
Jurnal Pertahanan & Bela Negara Vol 9, No 1 (2019): Jurnal Pertahanan dan Bela Negara (English)
Publisher : Indonesia Defense University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (741.924 KB) | DOI: 10.33172/jpbh.v9i1.514

Abstract

The number of iron sand reserves is mostly spread in the coastal waters of Indonesia, from the coast of Sumatra, the southern of Java to Bali, the beaches of Sulawesi, beaches in East Nusa Tenggara (NTT), and the northern coast of Papua. Total reserves for ore are 173,810,612 tons and metal as much as 25,412,652.62 tons. But its utilization was not optimal because PT. Krakatau Steel, and PT. Krakatau Posco has produced steel plates only 24,000 to 36,000 tons per year. While the need for steel plates for the shipping industry each year requires 900,000 tons per year. With the need for raw material for steel plates in the form of iron sponges with Fe ≥ 60%, PT. Krakatau Steel is still imported from abroad. The proof is PT. Krakatau Steel before and during the year 2000 still imported Iron Ore Pellets from the countries of Sweden, Chille and Brazil for 3,500,000 tons per year. This condition is the cause of the national steel industry unable to compete with the foreign steel industry because imported raw materials are subject to import duties. This is an opportunity to build a steel raw material company because all this time the steel raw material industry in Indonesia has only two companies. This condition encourages the manufacture of iron sponges, with the process of making iron sponges with technology adapted to installed production capacity. This study analysed the manufacture of iron sponges using Cipatujah iron sand, as raw material for the manufacture of iron sponges, with the results obtained in the form of iron sponges with the highest levels of Fe ≥60.44%. This can be used for the purposes of raw materials for steel making PT. Krakatau Steel (PT. KS), because so far PT. KS claims that Fe <60% local sponge iron products. This can encourage the independence of steel raw materials, which impacts on the independence of the defence industry. But the government must also protect and prioritize steel raw materials for national production for national steel production. With the national government steel industry, the consortium of vendors supplying raw material (iron sponge) to maintain the quality and supply of continuous sponge iron.Keywords: iron sand, iron pellet, iron sponge
An Politicization of the Indonesian Armed Forces (TNI) Regarding ABRI’s Dual Function and Civilian Supremacy: Civilian Supremacy Faonaso Harefa; Sovian Aritonang; Asep Adang Supriyadi; Cecilia F. Harsono
Khazanah Sosial Vol. 7 No. 1 (2025): Khazanah Sosial
Publisher : UIN Sunan Gunung Djati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ks.v7i1.44927

Abstract

This study aims to analyze the relationship between the revision of Law Number 34 of 2004 and the issue of the return of ABRI's dual function and civil supremacy in the context of Indonesian democracy and reform. The mixed methods approach with SEM PLS-4 and NVivo 12 analysis is used to achieve that goal. The results of the analysis using NVivo 12 showed that ABRI's dwifunction would not return and civil supremacy was maintained because, legally, the TNI remained focused on its role as a tool of national defense. The civil government, through the Parliament and public supervision, has full authority to oversee the TNI so that the TNI still maintains its tested neutrality. The results of the SEM PLS-4 analysis show that the TNI Law's political variable on the issue of ABRI's dual function and civilian supremacy has a statistically significant effect, with a T-statistic value of 5.073 and P-value of 0.000 and a large effect on the model (F-square 0.489). The contribution of this research is to provide an understanding of the importance of a balance between freedom of opinion, politics, and the interests of national defense as a system that supports each other in the post-reform era, as well as in facing the challenges of reform and hybrid warfare towards Indonesia Gold Indonesia 2045. The limitations of this study lie in a limited time, which affects the depth of analysis and data scope so as to limit the perfection of the results of the research as a whole.
Co-Authors Asep Adang Supriyadi Cecilia F. Harsono Faonaso Harefa Jupriyanto Jupriyanto Riyadi Juhana