ANALISIS PENGENDALIAN KUALITAS PROSES PHOSPHATING PADA PT CITRA TUBINDO TBK
DOI:
https://doi.org/10.33884/comasiejournal.v14i01.11063Kata Kunci:
PHOSPHATING, QUALITY CONTROL, TAGUCHI METHOD, DEFECTAbstrak
This study discusses quality control analysis in the phosphating process at PT Citra Tubindo
Tbk, a manufacturer of Oil Country Tubular Goods (OCTG). The problem identified was the
high rate of non-homogeneous defects in the phosphating process, reaching an average of
4.16% from January to August 2025, which exceeded the company's maximum standard of
2%. This research aims to identify the optimal process parameters to minimize defects and
improve process stability using the Taguchi Method. The experimental design used an L9
(3^3) Orthogonal Array involving three control factors: solution pH, immersion time, and
temperature. Based on the analysis of the Signal-to-Noise (S/N) Ratio and mean response,
it was found that the optimal combination of parameters to minimize defects is a solution pH
of 38, an immersion time of 10 minutes, and a temperature of 70°C. The implementation of
this optimal level combination is expected to reduce process variability and significantly
decrease the defect rate, thereby meeting the company's quality standards.
Referensi
Adi Sopian. (2021). Pengendalian Kualitas Proses Produksi. Jurnal Teknik Industri.
Ayu Lestari, & Purwatmini. (2021). Analisis Pengendalian Kualitas Produk. Jurnal Manajemen Operasi.
Chilbule, S., et al. (2024). Optimization of heat pipe charged with CuO nanofluid using Taguchi technique. Applied Thermal Engineering.
Collins, et al. (2021). Design of Experiments using Taguchi Method. Engineering Journal.
Gaspersz, V. (2022). Total Quality Management (TQM) untuk Praktisi Bisnis dan Industri. Jakarta: Penebar Swadaya.
Halimah, & Ekawati. (2020). Penerapan Metode Taguchi dalam Pengendalian Kualitas. Jurnal Optimasi Sistem Industri.
Mitra, A. (2016). Fundamentals of Quality Control and Improvement (4th ed.). New York: John Wiley & Sons.
Montgomery, D. C. (2020). Design and Analysis of Experiments (10th ed.). New York: John Wiley & Sons.
Narayanan, T. S. (2021). Surface Pretreatment by Phosphate Conversion Coatings: A Review. Reviews in Advanced Materials Science.
Octariani, et al. (2021). Metode Taguchi Dalam Analisis Pengendalian Kualitas Produk Furniture. Jurnal Teknik Industri.
Phadke, M. S. (2018). Quality Engineering Using Robust Design. New York: Prentice Hall.
Samet, et al. (2025). Optimization of high strength CF/LM-PAEK thermoplastic composite tube manufacturing parameters using the Taguchi Method. Composite Structures.
Sari, R. P., & Utomo, B. (2023). Optimasi Parameter Proses Pelapisan Logam untuk Meningkatkan Ketahanan Korosi. Jurnal Material dan Metalurgi, 12(1), 45-52.
Toebagoes, et al. (2024). Analisis Pengendalian Kualitas Produk Baja Tulangan Sirip S36 Dengan Menggunakan Metode Taguchi Pada Quality Control. Jurnal Ilmiah Teknik Industri.
Widyanto, B., & Susanto, H. (2023). Korosi dan Pencegahannya pada Logam Industri. Bandung: Alfabeta.
