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CORRECTIVE MAINTENANCE ON DEFLECTOR ROLL USING BREAKDOWN METHOD AT PT PELAT TIMAH NUSANTARA (LATINUSA), TBK. Wijaya, Ryvaldi Tyas; Notonegoro, Hamdan Akbar; Dwinanto, Dwinanto; Satria, Dhimas; Listijorini, Erny; Jannah, Miftahul
Trends in Mechanical Engineering Research Vol 3, No 01 (2025): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v3i01.34116

Abstract

Deflector Roll plays an essential role in the manufacturing of tinplate at PT Pelat Timah Nusantara (Latinusa), Tbk. This research examines the corrective maintenance procedure by employing the breakdown method to pinpoint repeated problems and their resolutions. The primary issues noted include degraded bearings, soiled surfaces, and uneven rollers, all of which hinder production continuity. The maintenance procedures consist of disassembling, examining, replacing, cleaning, balancing, and reassembling. Analyzing 55 documented damage occurrences from 2015 to 2024 reveals that surface-related problems were predominant, with 9 instances (16.36%) of glossy smooth surfaces, followed closely by surface buckling (14.55%) and dirty surfaces (14.55%). The outcome indicates that organized maintenance enhances efficiency and extends roll lifespan
COMPARATIVE STUDY OF ADHESIVE STRENGTH IN MAHOGANY WOOD LAMINATED COMPOSITES Oetama, Pandoe Satria; Sunardi, Sunardi; Ula, Shofiatul; Yusuf, Yusvardi; Dwinanto, Dwinanto; Listijorini, Erny; Santosa, Irfan
Trends in Mechanical Engineering Research Vol 3, No 01 (2025): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v3i01.34091

Abstract

Adhesive technology has seen significant advancements in recent years. Compared to welding or threaded joints, adhesives provide a straightforward mechanism for joining material interfaces. Due to practicality allows for the potential development of adhesives with strengths comparable to those of traditional joints. In this study, a modified type of Polyvinyl Acetate (PVAc) adhesive was utilized as a binder for mahogany wood surfaces. The choice of PVAc adhesive is due to its common use in everyday applications, particularly in the woodworking industry. Additionally, this adhesive is relatively safe for both health and the environment. The study examined three types of adhesives: PVAc white adhesive, PVAc yellow adhesive, and a combination of the PVAc white and yellow adhesive. These adhesives were used to bond the wood surfaces, and the bond strength at the interface was evaluated through a flexural test. The results showed that the adhesive strength of white adhesive reached 111 MPa, while the mixed adhesive and yellow adhesive exhibited flexural strengths of 74.2 MPa and 63.4 MPa, respectively. Notably, the presence of white glue was found to enhance the flexural strength of mahogany wood even in the absence of adhesive.
SIMULATION OF THE EFFECT OF THE COVER GLASS ANGLE INCLINE ON A SINGLE SLOPE SOLAR DISTILLATOR Caturwati, Ni Ketut; Wahyudi, Hadi; Alda, Apriyani; Wiyono, Slamet; Dwinanto, Dwinanto
Trends in Mechanical Engineering Research Vol 2, No 2 (2024): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i2.30947

Abstract

Distillation is a water purification process through evaporation and condensation. Research on solar distillation was developed using the Computational Fluid Dynamic (CFD) method to obtain an overview of the transmission of solar radiation heat by the cover glass for variations in the angle of the glass inclination of 100, 200 and 300. The water height in the basin is 100 mm. The simulation results show that the heating process with variations in the angle of the cover glass affects the distillation results. The smaller angle of the cover glass inclination, the higher heat flux entering the basin so that the evaporation process becomes higher which ultimately increases the amount of distillate water production produced. The highest heat flux entering the distillation system was achieved by the system with a cover glass inclination angle of 100 with a value of 388.525 W / m2, while the lowest was at an angle of 300 with a value of 379.792 W / m2. In addition, the highest distillate production was obtained on the cover glass with an inclination angle of 10 ° of 1.078 cc. For operational hours at 13.00 WIB and simulation time 180 seconds.