Influence of Steel Strip Temperature in Formation Zinc Dross During Process Production Using Continuous Galvanizing Line (CGL) Machine

7th Nanoscience and Nanotechnology Symposium

物理学;材料科学

Rachmat, R.S.^1,2 ; Ogawa, M.^3

President University, Jalan Ki Hajar Dewantara, Cikarang Utara, Jawa Barat, Bekasi

17550, Indonesia^1

Fumira, Jalan Jawa, Cikarang Barat, Jawa Barat, Bekasi

17520, Indonesia^2

Nippon Steel Sumitomo Metals Engineering, 46-59 Nakabaru, Fukuoka, Tobata-ku, Kitakyushu-shi, Japan^3

关键词: Bath temperatures;    Continuous galvanizing lines;    Galvanizing process;    High temperature;    Life-times;    Process production;    Quality of product;    Steel strip;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/395/1/012006/pdf
DOI  :  10.1088/1757-899X/395/1/012006

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

To control the occurrence of zinc dross during galvanizing process using production Continuous Galvanizing Line (CGL) machine, it is necessary to control steel strip temperature before entry into zinc bath. The Steel strip temperature controls were variable at 320°C and 400°C and zinc bath temperature was fix at temperature 460°C. At temperature steel strips of 320°C, zinc bath was checked using spectrometry, the results of Fe content 0.1293% and Al 0.0759%, because the solubility of Al is lower than Fe, the dross occurs become bottom dross. If the zinc dross change become bottom dross, the bottom dross could decrease quality of product and life time of zinc pot, because bottom dross settled at the floor. Bottom dross properties very hard and absorb heating, then at that position bottom dross make hot spot in the floor, finally zinc pot leakage. At temperature steel strip 400°C, the results content of Al 0.1667% and Fe 0.1217%, due to high temperature steel strip make solubility of Al become higher than Fe, therefore float at the zinc bath become top dross.