PENGARUH TOTAL ACID DAN TOTAL CONCENTRATION PHOSPHATE TERHADAP STRUKTUR PERMUKAAN, CRYSTAL SIZE DAN COATING WEIGHT LAPISAN PHOSPHATING UNTUK MATERIAL SPC270F PADA PROSES ED-COATING

Setiawan, Ivan Ade (2023) PENGARUH TOTAL ACID DAN TOTAL CONCENTRATION PHOSPHATE TERHADAP STRUKTUR PERMUKAAN, CRYSTAL SIZE DAN COATING WEIGHT LAPISAN PHOSPHATING UNTUK MATERIAL SPC270F PADA PROSES ED-COATING. S1 thesis, Universitas Kristen Indonesia.

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Abstract

Penelitian ini menjelaskan tentang pengaruh dari parameter Total Acid dan Total Cocentration pre-treatment phosphate terhadap struktur permukaan material, crystal size, dan coating weigth lapisan phosphating untuk material SPC270F pada proses electro deposition coating, karena pada umumnya material SPC270F banyak digunakan pada industri otomotif. Pada proses electro deposition coating proses coating phosphate sebagai lapisan sebelum cat adalah proses yang penting. Baik buruknya kualitas cat sangat dipengaruhi oleh lapisan phoshating sebagai lapisan anti korosi. Parameter pada proses pre-treatment phosphate sangat berpengaruh pada kualitas lapisan phosphating. Pada penelitian ini parameter total acid dan total cocentration divariasikan menjadi 9 parameter dan dilakukan penelitian terhadap 3 sample pada masing-masing paremeter kemudian dilakukan pengujian terhadap crystal size atau ukuran butiran phosphating, coating weight, dan struktur permukaan lapisan phosphate. Ukuran butiran dan struktur permukaan material diuji dengan menggunakan scanning electron microscope sedangankan coating weight diuji dengan menggunakan X-Ray Fluorancence. Dari hasil penelitian ini menunjukan adanya hubungan semakin tinggi parameter total cocentration berdampak pada semakin kecil ukuran butiran maupun coating weight dan sebaliknya. Struktur permukaan material memiliki hubungan berbanding lurus dengan parameter total acid dan total cocentration. / This study describes the effect of the parameters Total Acid and Total Concentration of phosphate pre-treatment on the material surface structure, crystal size, and coating weight of the phosphating layer for SPC270F material in the electro deposition coating process, because in general SPC270F material is widely used in the automotive industry. In the electro deposition coating process, the phosphate coating process as a coating before the paint is an important process. Good or bad paint quality is greatly influenced by the phosphating layer as an anti-corrosion layer. Parameters in the phosphate pre-treatment process greatly affect the quality of the phosphating layer. In this study, the parameters of total acid and total concentration were varied into 9 parameters and a study was carried out on 3 samples in each parameter and then tests were carried out on crystal size, coating weight, and surface structure of the phosphate layer. Crystal size and surface structure of the material were tested using a scanning electron microscope while the coating weight was tested using X-Ray Fluorance.The results of this study show that the higher the total cocentration parameter, the smaller the crystal size and coating weight, and vice versa. The surface structure of the material has a directly proportional relationship with the parameters of total acid and total concentration.

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