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Dampak Jumlah Plasticizer dalam Nilai Kekerasan Plastik PVC Manurung, Meilani Mandhalena; Leksonowati, Nur Fitria Pujo; Pamungkas, Nurman; Stefani, Windy; Batubara, Ninda Hardina; Purba, Adi Syahputra
JURNAL INTEGRASI Vol. 16 No. 2 (2024): Jurnal Integrasi - Oktober 2024
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v16i2.8495

Abstract

This paper provides a detailed investigation into the effects of Trioctyl Trimellitate (TOTM) plasticizer levels on the hardness of Polyvinyl Chloride (PVC) materials. The study reveals an inverse correlation between the level of TOTM plasticizer and the hardness of PVC, with an increase in TOTM levels leading to a decrease in hardness. This trend is consistent across various PVC samples, despite minor variations. The role of plasticizers in determining the physical and mechanical properties of PVC is further explored, emphasizing their function in reducing PVC's crystallinity, thereby producing a clearer and more flexible material. This research contributes to the understanding of how plasticizers can be used to tailor the properties of PVC, leading to the development of two distinct types of PVC: Flexible PVC, which contains a plasticizer, and Rigid PVC, which does not. The findings underscore the importance of plasticizers in material design and engineering, offering valuable insights for future applications.
Studi Pengaruh Nilai Availability Mesin Stamping Terhadap Jumlah Hasil Produksi Purba, Adi Syahputra; Leksonowati, Nur Fitria Pujo; Pamungkas, Nurman; Yuniarsih, Nidia; Batubara, Ninda Hardina; Prasetyo, Dimas
JURNAL INTEGRASI Vol. 16 No. 2 (2024): Jurnal Integrasi - Oktober 2024
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v16i2.8536

Abstract

This study aims to analyze the effect of machine availability on production output at PT XYZ. Data collection was conducted from January to March 2024, focusing on machine downtime, total operational hours, and weekly production output. The method used involves the calculation of Mean Time Between Failure (MTBF), Mean Time To Repair (MTTR), and availability, followed by a correlation analysis between availability and production output. The results show a strong correlation between availability and output, with a correlation value of 0.852. In Week 6 and Week 11, machine downtime caused availability to drop to 98.41% and 97.96%, respectively, which directly impacted production output. Based on these findings, it is recommended that PT XYZ improve preventive maintenance and minimize downtime to maintain optimal machine availability and maximize production output
Studi Kasus Kualitas Pengelasan Pada Material A694 F65 Overlay Inconel 625 Claded Menggunakan Metode Kombinasi Gtaw & Smaw Sugondo, Ebeng; Purba, Adi Syahputra; Kms M Avrieldi; Ismiyatun Nurjannah
Jurnal Teknologi Dan Riset Terapan (JATRA) Vol. 7 No. 2 (2025): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v7i2.10531

Abstract

Welding is a method of connecting metal that involves melting a portion of the parent and filler metals until they are liquid enough to fuse. Nowadays, welding is becoming more and more common, particularly in the oil and gas sector. Combining GTAW with SMAW techniques is one of them. Because it can create robust and corrosion-resistant joints, the oil and gas industry frequently uses the combination of GTAW and SMAW welding techniques. The welding procedure on ASTM A694/F65 material covered with Inconel 625 will be covered in this study. While Inconel 625 is resistant to corrosion and stress cracking, A694/F65 steel will offer toughness for applications with low temperature field circumstances. The benefits of the various welding techniques are strategically integrated by this combination of welding procedures. While SMAW delivers great mechanical strength and filling efficiency for the fill to cap weld portions, GTAW will offer superior penetration and surface cleanliness on the root weld. The results of the tests, which included visual inspection, Magnetic Particle Inspection (MPI), and Ultrasonic Testing (UT), demonstrated that no evidence of serious flaws exceeding the acceptance criteria of the cited standards AWS D1.1:2025 for MPI and ASME Section VIII Div. 1 Appendix 12 for UT was discovered. It is anticipated that the study will serve as a guide for the welding procedure on gas and oil pipes.
Co-Authors Adhe Aryswan Aditya Dwi Putra Fajar Agung Saputra Ahmad Farhan, Ahmad Amalia, Mutia Andaresta, Windy Ari Wibowo Ariyanto, Nugroho Pratomo Baehaqi Batubara, Ninda Hardina Budiman Budiman Butar, Hendra Butar Cahyagi, Danang Cahyo Budi Nugroho Cuana, Rona Dimas Prasetyo Dupan, Pandi Dzulfikar, Mohamad Alif Dzulfiqar, Mohamad Alif Erna Juwita Fajrin, Aulia Fyona, Annisa Good Rindo Hanifah Widiastuti Hermawan, Muhammad Ghandy Razzaki Irdia Raihan, Haura Ismiyatun Nurjannah Juangsa Putra, Lalu Giat Juliarni Khollilurrahman, Kholillurrahman Kms M Avrieldi Leksonowati, Nur Fitria Pujo Leo Van Gunawan Louisa Riaunal Sitompul, Dharma Manalu, Ari Angga Manurung, Agnes Br. Manurung, Meilani Mandalena Manurung, Meilani Mandhalena Marbun, Abri Andry Saresa Mega Gemala Mufariz, Mufti Fathonah Muhammad Zaenuddin Mutiarani Mutiarani Mutiarani Mutiarani Muvariz, Mufti Fathona Muvariz, Mufti Fathonah Natanael Tampubolon, Franssius Naufal Abdurrahman Prasetyo Nidia Yuniarsih Nurul Fadilah, Nurul Nurul Laili Arifin Nurul Ulfah Pamungkas, Nurman Pujo Leksonowati, Nur Fitria Puspita, Roza Putra, Gelby Anggara Rafly, Stevian Rahman Hakim Ramadhan, M. Noviriandi Rangga Saputra Ritonga, Fatima Sari Rohmat, Abdul Sapto Wiratno Satoto Simanjuntak, Jefri Kemri Rodi Samuel Sriyanto Sriyanto Stefani, Windy Sugondo, Ebeng Thohari, Ahmad Hamim Wijayanti, Ita Wirawan, Adhitomo Yusri Aksyaputra, Muhammad