ANALISIS PENGARUH SUHU SUBSTRAT, RELATIVE HUMIDITY, DAN AMBIENT TEMPERATURE TERHADAP KEKUATAN REKAT CAT PADA MATERIAL A 36

Al Hazmi, Zahrina Amalia (2016) ANALISIS PENGARUH SUHU SUBSTRAT, RELATIVE HUMIDITY, DAN AMBIENT TEMPERATURE TERHADAP KEKUATAN REKAT CAT PADA MATERIAL A 36. Diploma thesis, POLITEKNIK PERKAPALAN NEGERI SURABAYA.

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Abstract

PT. Boma Bisma Indra adalah merupakan salah satu perusahaan manufaktur di Indonesia yang memproduksi pressure vessel.Dalam pengerjaan pressure vessel terdapat salah satu tahapan proses adalah proses pengecatan. Penelitian ini ditujukan untuk menganalisis suhu substrat, relative humidity, dan ambient temperature terhadap daya rekat cat pada material. Karena hasil pengecatan di PT. BBI sering terjadi rework, sehingga menyebabkan kerugian baik waktu uang dan tenaga. Penelitian ini menggunakan desain eksperimen Box-Behnken dengan tiga faktor dan tiga level berdasarkan rancangan Box-Behnken dilakukan 15 kali percobaan. Kemudian dilakukan pengujian daya rekat cat pada material menggunakan Pull Off Test Adhesion mengacu pada Standard ASTM 4541 dan Standard SSPC 22 (The Society For Protective Coatings). Optimasi daya rekat cat pada proses pengecatan pada penelitian ini menggunakan metode non-linier programming dengan bantuan software Lingo 14®. Berdasarkan hasil penelitian didapatkan kesimpulan bahwa parameter suhu substrat (X1), relative humidity (X2), ambient temperature (X3) mempunyai pengaruh yang signifikan terhadap hasil daya rekat cat pada proses pengecatan. Optimasi dengan non-linier programming menghasilkan daya rekat optimum 8.54901 MPa dengan setting parameter suhu substrat 20˚ celcius, relative humidity 75%, ambient temperature 20˚ celcius. Model matematik dari respon daya rekat cat yang dapat menghasilkan daya rekat optimum adalahŷ= 4.0694 + 0.0151 X1 + 4.5795 X2 + 0.6784 X3 – 1.0806 X 1 2 + 0.0068 X2 2 + 0.6901 X1*X 3 + 0.8700 X2*X 3 Kata kunci : Adhesivitas, Box-Behken, Non-linier Programming, Pengecatan, Pull Off Test. PT. Boma Bisma Indra is one of the manufacturing company in Indonesia which produce pressure vessel. There is one stage of the process on the workmanship of pressure vessel called painting. This study is aimed to analyze the effect of substrate temperature, relative humidity, and ambient temperature of the paint adhesion on the material. This is because the result of painting in PT .BBI frequent rework, causing both loss of time, money and effort. This study uses experimental design of the Box - Behnken with three factors and three levels and also based on the Box - Behnken design performed 15 trials. Then testing of paint adhesion on the material using Pull Off Test Adhesion refers to ASTM Standard 4541 and Standard SSPC 22 ( The Society For Protective Coating ) . Optimization of paint adhesion on the painting process in this study using a non -linear programming with the help of Lingo 14®software. Based on the results, the conclusion is that the substrate temperature parameters ( X1 ) , relative humidity ( X2 ) , ambient temperature ( X3 ) have a significant influence on the results of paint adhesion on the painting process. Optimization with non - linear programming produces optimum paint adhesion 8.54901 MPa at a substrate temperature parameter setting 20˚ Celsius , 75 % relative humidity , ambient temperature of 20˚ Celsius. The mathematical model of the response of paint adhesion to produce optimum adhesion isŷ = 4.0694 + 0.0151 X1 + 4.5795 X2 + 0.6784 X3 – 1.0806 X 1 2 + 0.0068 X2 2 + 0.6901 X1*X 3 + 0.8700 X2*X 3 Keyword: Adhesivity, Box-Behken, Non-linier Programming, Painting, Pull Off Test.

Item Type: Thesis (Diploma)
Subjects: T Technology > T Technology (General)
Divisions: Jurusan Teknik Desain dan Manufaktur > Teknik Desain dan Manufaktur
Depositing User: Unnamed user with email repository@ppns.ac.id
Date Deposited: 12 Sep 2018 04:46
Last Modified: 12 Sep 2018 04:46
URI: http://repository.ppns.ac.id/id/eprint/555

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