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All Journal Sprocket : Journal of Mechanical Engineering Jurnal Visi Eksakta
Salomo Simanjuntak
Universitas HKBP Nommensen
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Public Health

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ANALISA KEBUTUHAN AIR BERSIH DI KOTA MEDAN SUMATERA UTARA Salomo Simanjuntak; Eben Oktavianus Zai; Michael Halomoan Tampubolon
Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (697.574 KB) | DOI: 10.51622/eksakta.v2i2.389

Abstract

The water that humans really need is good quality water, which is commonly known as clean water. Clean water is one type of water-based resource that is of good quality and is commonly used by humans for consumption or in carrying out their daily activities including sanitation. The most important thing is clean water is a basic human need which greatly affects human health. The stages in completing this Final Project are first to collect the required data from the Central Bureau of Statistics and BAPPEDA Medan City with literature reviews and ask questions directly to related parties about the required data. Then the calculation of the projected population in the city of Medan using the geometric, arithmetic method. The next stage is calculating the need for clean water in Medan City and calculating the maximum daily water needs and peak hours.
Pengamatan Atas Daerah Interface Pada Cladding Material Stainless Steel Terhadap Baja Karbon Rendah Secara Metalografi dan Uji Keras Yohanes Hutahaean; Sahat Mauli Lubis; Charles Manurung; Salomo Simanjuntak; Yetty R Saragi
SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 2 No 2 (2021): Edisi Februari 2021
Publisher : Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.197 KB) | DOI: 10.36655/sproket.v2i2.527

Abstract

Low carbon steel metal is a type of steel that has poor corrosion resistance. For that it is necessary to protect against corrosion through a coating process. In this case the coating is carried out using solid metal and is known as cladding. In this cladding process using another metal as a coating medium, namely stainless steel, the specimen will be given additional deformation from the outside in the form of pressure and the heating process is carried out above the recrystallization temperature (950oC) then cooled slowly in free air. The heating process of the specimens was carried out with three temperature variations, namely 750oC, 850oC and 950oC with a holding time of 60 minutes, from the research results obtained that the specimens and the highest temperature, 950 oC, had better metal bonds compared to specimens at temperatures of 750 and 850oC with hardness values. average 227.96 VHN.
Co-Authors Charles Manurung Eben Oktavianus Zai Michael Halomoan Tampubolon Sahat Mauli Lubis Yetty Riris Saragi Yohanes Hutahaean