Analisa Pengaruh Material Abrasif pada Proses Blasting Terhadap Kualitas Coating Epoxy

Azis, Moch Farid (2017) Analisa Pengaruh Material Abrasif pada Proses Blasting Terhadap Kualitas Coating Epoxy. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Coating merupakan salah satu cara yang efektif untuk melindungi material logam dari korosi. Metode coating lebih dominan digunakan pada industri karena lebih mudah dan lebih ekonomis. Namun metode ini juga tak lepas dari berbagai hal yang mempengaruhi kualitas dan efektivitasnya. Proses penyiapan material hingga proses pelapisan selesai sangat menentukan kualitas coating. Salah satu proses penyiapan material yang menentukan kualitas coating adalah proses pengasaran permukaan. Pada permukaan yang luas biasanya digunakan metode blasting untuk membersihkan sekaligus mengasarkan permukaan material. Saat ini tersedia banyak jenis material abrasif yang dapat digunakan untuk proses blasting. Penelitian ini dilakukan untuk mengetahui pengaruh material abrasif pada proses blasting terhadap kualitas coating epoxy. Material dasar berupa pelat ASTM A36 dan A53 di-blasting dengan material abrasif steel grid, garnet, dan silika. Lalu diukur nilai kekasaran permukaannya. Kemudian diberi coating epoxy dengan metode spray dan diuji daya lekatnya. Dari pengujian yang dilakukan, didapat hasil bahwa daya lekat meningkat seiring meningkatnya kekasaran permukaan. Material abrasif steel grid adalah yang terbaik untuk pelat A36 dengan nilai rata-rata kekasaran permukaan 86,8 μm dan daya lekat rata-rata 11,9 MPa. Sedangkan untuk pelat A53 material abrasif silika adalah yang terbaik dengan nilai rata-rata kekasaran permukaan 86,4 μm dan nilai daya lekat rata-rata 11,3 MPa. ================================================================= Coating is an effective way to protect metal materials from corrosion. Coating method is more dominant used in industry because it is easier and more economical. But this method also can not be separated from various things that affect the quality and effectiveness. The process of preparing the material until the coating process is completed will determine the quality of the coating. One of the process of preparing the material that determines the quality of the coating is the surface curbing process. On a wide surface is usually used blasting method to clean as well as roughed surface material. Currently available many types of abrasive materials that can be used for the blasting process. This research was conducted to determine the effect of abrasive material on the blasting process on epoxy coating quality. The basic materials of ASTM A36 and A53 plates are blasted with abrasive steel grid, garnet, and silica materials. Then measured the value of surface roughness. Then was given epoxy coating with spray method and tested its stickiness. From the tests conducted, the results obtained that the adhesiveness increases with increasing surface roughness. The steel grid abrasive material is best for A36 plates with an average surface roughness value of 86.8 μm and an average adhesion power of 11.9 MPa. As for the A53 plate the abrasive silica material is the best with an average surface roughness value of 86.4 μm and an average sticking power value of 11.3 MPa.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: coating, blasting, abrasive material
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA418.74 Corrosion and anti-corrosives
T Technology > TS Manufactures > TS156 Quality Control. QFD
T Technology > TS Manufactures > TS167 Costs, Industrial
V Naval Science > VC Naval Maintenance > VC 270-279 Equipment of vessels, supplier,allowances,etc
Divisions: Faculty of Marine Technology > Ocean Engineering > (S1) Undergraduate Theses
Depositing User: Moch Farid Azis
Date Deposited: 12 Dec 2017 04:33
Last Modified: 05 Mar 2019 06:49
URI: http://repository.its.ac.id/id/eprint/48057

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