Aprilin, Kurniawan Jaya Atmaja (2017) Pengaruh Air Dan Oli Mesran SAE 40 Terhadap Hasil Film Radiografi Pengujian Tak Rusak, Material Pipa API 5L Grade B 4 Inch Schedule 40. Diploma thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada umumnya dan menjadi kewajiban untuk suatu pekerjaan pipeline akan memerlukan pemeliharaan berkala pada pipa-pipa yang sedang beroperasi menyalurkan fluida ataupun gas, sedangkan dalam pemeliharaan ini tidak mungkin untuk menghentikan proses produksi yang sedang berjalan, karena akan menimbulkan kerugian terhadap perusahaan ketika proses produksi tersebut dihentikan. Penelitian ini diawali dengan mempersiapkan specimen yaitu pipa API 5L yang dilas tengahnya seperti sambungan las pipeline dan diberi valve untuk memasukan fluida. Kemudian sambungan las diradiografi pada pipa keadaan kosong, berisi air, dan berisi oli. Hasil film radiografi akan berbeda-beda nilai densitasnya karena pengaruh fluida tersebut. Nilai densitas diukur menggunakan densitometer yang ditempelkan pada film yang ditampilkan oleh viewer. Dari hasil penelitian ini kita dapat mengetahui bahwa hasil film radiografi sambungan pipa yang berisi fluida air dengan nilai densitas weld metal 1.658, base metal 1.816 dan pipa berisi oli dengan nilai densitas weld metal 1.675, base metal 1.798 tidak memenuhi syarat keberterimaan ASME Sec.V. Pada nilai sensitivitas semua film juga tidak memenuhi syarat ASME Sec V.
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In general and an obligation for a pipeline work will require periodic maintenance of operating pipelines that supply fluid or gas, Whereas in this maintenance it is not possible to stop the ongoing production process, as it will cause harm to the company when the production process is stopped. This research begins by preparing specimens of 5L welded API pipes such as pipeline welded joints and valves to insert fluids. Then the welding joint is radiated to an empty condition, water-filled pipe, and filled with oil. The results of the radiographic film will vary the density value because of the influence of the fluid. The density value is measured using a densitometer attached to the film displayed by the viewer. From the result of this research we can know that the result of radiography film of pipe joint containing water fluid with density result weld metal value 1.658, base metal 1.816 and pipe containing oil density result weld metal 1.675, base metal 1798 not qualify acceptance ASME Sec.V. Sensitivity value of all film is’nt qualify acceptance ASME Sec V.
| Item Type: | Thesis (Diploma) |
|---|---|
| Additional Information: | RSMI 620.112 72 Apr p-1 3100018074211 |
| Uncontrolled Keywords: | Radiography; fluid; pipeline; density; sensitivity |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ935 Pipe--Fluid dynamics. Tubes--Fluid dynamics T Technology > TN Mining engineering. Metallurgy > TN879.5 Petroleum pipelines T Technology > TS Manufactures > TS156 Quality Control. QFD. Taguchi methods (Quality control) |
| Divisions: | Faculty of Vocational > Mechanical Industrial Engineering (D4) |
| Depositing User: | Aprilin Kurniawan Jaya Atmaja |
| Date Deposited: | 01 Feb 2018 03:07 |
| Last Modified: | 20 Apr 2020 20:21 |
| URI: | http://repository.its.ac.id/id/eprint/48657 |
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