Claim Missing Document
Check
Articles

Found 2 Documents
Search

Analisa Kapasitas Produksi dalam Mengantisipasi Kenaikan Jumlah Permintaan di PT. Semen Gresik (Persero) Tbk. Pabrik Tuban Umar Wiwi, ; Wahyu Dwi K,
Otopro Vol 5, No 2 (2010)
Publisher : Otopro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tujuan penelitian ini adalah untuk meramalkan permintaan semen dan membandingkan apakah kapasitas yang tersedia di perusahaan bisa memenuhi kapasitas yang diperlukan di PT. Semen Gresik (Persero) Tbk. Pabrik Tuban, berapa tambahan kapasitas yang diperlukan dan berapa tambahan mesin untuk mengantisipasi permintaan. Metode penelitian yang digunakan adalah  diskriptif kuantitatif.Variabel penelitiannya adalah peramalan permintaan semen, kapasitas tersedia dan kapasitas yang diperlukan.Pengambilan data menggunakan metode observasi dan studi pustaka. Hasil yang dicapai: peramalan permintaan semen tahun 2006-2010 sebesar 6.530.641 ton, 6.873.941 ton, 7.235.288 ton, 7.615.629 ton, dan 7.986.280 ton, tambahan kapasityas yang diperlukan  pada tahun 2010, Mesin Limestone Crusher,  sebesar 47,77 jam, Mesin Clay Crusher 1.671,43 jam, Mesin Raw mill 2.315,38 jam; jumlah mesin yang harus ditambah : Limestone Crusher  1 unit tahun 2009; mesin Clay Crusher 1 unit ditambah tahun 2006 dan 1 unit lagi ditambah tahun 2009, sedangkan mesin  Raw mill  ditambah satu unit tahun 2008. The Objectives of this research are to forecast cement production demand, to make comparison between the available production capacity and the demand capacity at PT. Semen Gresik (Persero) Tbk. Tuban Factory, and to calculate how many additions of production capacity and the number of machine which are needed to anticipate increasing demand. The used methodology in this research is quantitave description method. The variables of research are cement production forecast demand, available capacity and the production capacity which is needed.  Observation method and literature study is used to collect the data.The obtain results are the forecasting of cement production demand at 2006 until 2010 about 6,530,641 ton, 6,873,941 ton, 7,235,288 ton, 7,615,629 ton, and 7,986,280 ton respectively. The additions of production capacity at 2010 are Limestone Crusher machine about 47.77 hours, Clay Crusher machine about 1,671.43 hours, and Raw mill machine about 2.315,38 hours. The additional numbers of machines are one unit of Limestone Crusher at 2009; one unit of Clay Crusher at 2006 and one more unit at 2009,  Raw mill machine is added one unit at 2008.
The Analisis pengaruh ketebalan dan jenis Coating terhadap kekuatan Adhesi pada Pelat Baja SA 516 Gr 70 : Perbandingan ketebalan dan jenis Coating Syauqi, Muhammad; Rachmad Syarifudin H; Wahyu Dwi K; Sigit N
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 2 (2026): Jurnal Armatur (in Progress)
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i2.11093

Abstract

SA 516 Gr 70 carbon steel is often used in pressure vessels, requiring a coating system with good adhesive strength to prevent failure due to corrosion. This study analyzes the effect of coating type and thickness on the adhesive strength of SA 516 Gr 70 plates using the pull-off test method in accordance with ASTM D4541. The two coating systems tested were Interbond 2340 (UPC) and Interline 399, with variations in dry film thickness (DFT) of 75 µm, 125 µm, and 175 µm. Surface preparation was carried out through an abrasive blasting process with a cleanliness level of Sa 2½, accompanied by control of roughness profile, salt contamination, dust cleanliness, and control of application environmental conditions to maintain coating quality. Test results show that Interbond 2340 produces higher adhesion values than Interline 399 across all thickness variations, confirming the influence of coating type on coating adhesion performance. A maximum adhesion value of 17.09 MPa was obtained for Interbond 2340 with a thickness of 125 µm, indicating the optimal thickness for increasing the bond strength of the coating to the steel substrate. All specimens met the ASTM D4541 requirements, with Interbond 2340 at a thickness of 125 µm showing the most superior adhesion performance and can be used as a technical reference in selecting a coating system for pressure vessel applications.