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All Journal Majalah Ilmiah Pengkajian Industri Jurnal Sains dan Teknologi Mitigasi Bencana
wahyu wahyu garinas
Pusat Teknologi Pengembangan Sumberdaya Mineral - Badan Pengkajian dan Penerapan Teknologi
Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Engineering Industrial & Manufacturing Engineering Transportation

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THE IMPACT OF COVID-19 PANDEMIC ON METAL MINERAL COMMODITIES IN INDONESIA AND THEIR MITIGATION IN MINING ACTIVITIES: Desk studi wahyu wahyu garinas
Jurnal Sains dan Teknologi Mitigasi Bencana Vol. 15 No. 2 (2020): Jurnal Sains dan Teknologi Mitigasi Bencana
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jstmb.v15i2.4461

Abstract

The Covid-19 pandemic in 2020, has affected all mining sectors. The price of mining materials index is very low due to the Covid-19 pandemic and also when compared to other pandemics such as SARS, HN1, and Ebola. The price of the metal index such as iron, aluminum, nickel, zinc, copper) almost all fell and only high gold metals are increasingly expensive. The large mining companies continue their production and they use health protocols. For the continuity of mining operations, the company creates stages and strategies in mining operations (teamwork schedule, employee location, working time, number of workers, evacuation of employees). For the continuity of the company's operations, the company plans: responding to an emergency situations (pandemic), build the company's resilience, recover the company from impact, develop an action plan and build the foundation of the company to rise in the new normal time. The company conducts mitigation and protection individually and in groups and creates health campaigns digitally. In mining operations, the company develops its operational activities by implementing health protocols such as avoiding many people and making mine operational plans that follow health protocols.  Keywords: Covid-19 pandemic, mineral commodity, index value, health mitigation.
PROSES PEMBUATAN DAN PENGUJIAN BENDA UJI KERAMIK UNTUK BAHAN BAKU ISOLATOR LISTRIK KERAMIK PORSELEN (MANUFACTURING AND TESTING PROCESS OF CERAMIC SPECIMENS FOR RAW MATERIALS OF ELECTRICAL ISOLATOR PORCELAIN CERAMIC) wahyu wahyu garinas
Majalah Ilmiah Pengkajian Industri Vol. 10 No. 3 (2016): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v10i3.487

Abstract

Penelitian ini merupakan bagian dari kegiatan mencari bahan baku untuk pembuatan isolator keramik porselen. Bahan baku untuk pembuatan benda uji keramik sebagian besar menggunakan bahan baku lokal.Proses pengolahan bahan baku pada penelitian ini  : pembuatan komposisi, pengolahan bahan dan pembuatan benda uji.Metode yang akan dilakukan dalam pengolahan ini  yaitu proses pemisahan dengan cara basah dan kering.Untuk mengetahui kualitas kelistrikan dari bahan baku keramik maka dibuat benda uji dan dilakukan uji tegangan tembus listrik.Hasil uji terhadap benda uji ternyata  semua benda uji masih belum memenuhi standar IEC maupun ASTM. Nilai hasil uji terhadap sampel  sekitar   (7,99 - 9,35) kV/mm dan semua sampel  belum memenuhi  standar yang direkomendasikan oleh PLN (9,85 kV/mm). Hasil uji tersebut menunjukkan bahwa sampel no. 5 dan 6 yang mendekati standar dari PLN. Perlu evaluasi terhadap  komposisi , bahan dan proses pembuatan dari benda uji keramik. Kata Kunci : Bahan mentah keramik (kaolin, felspar, ball clay,kuarsa), pengujian  benda uji, pengujian tegangan tembus, kualitas bahan keramik. Abstract This study is part of the looking for raw materials for the manufacture of ceramic porcelain insulators.The raw material for the manufacture of ceramic test specimens mostly using local raw materials.The processing of the raw material in this study: preparing a composition, materials processing and manufacturing of the test object. The method will be done in this processing is the separation process by means of wet and dry.To know the the quality of the electrical ceramic raw materials then created of the test specimen and test the electrical Puncture Voltage.The test results of the test specimen it turns out all specimens still does not meet PLN (IEC and ASTM) standards.Value test results on samples approximately (7.99 to 9.35) kV / mm and all samples do not meet the standards recommended by PLN.The test results showed that the samples no. 5 and 6 are closer to a standard of PLN.Needs to be evaluation of the composition, materials and manufacturing process of ceramic test specimen. Keywords :  raw material ceramic, specimens test, puncture voltage test, ceramic material quality.
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