The Types of the Hot-Dipped Galvalume Post-Treatment Film and the Control Technology of Film Forming Process

• Published in: Cai liao bao hu Vol. 54; no. 2; pp. 140 - 144
• Main Author: LIU Jin-hua, XU Yong
• Format: Journal Article
• Language: Chinese
• Published: Editorial Department of Materials Protection 01.02.2021
• Subjects: hot-dipped galvalume; post-treatment liquid performance; film thickness control; defect improvement
• ISSN: 1001-1560
• DOI: 10.16577/j.cnki.42-1215/tb.2021.02.026

The performance characteristics and product application scopes of five kinds of post-treatment films of the hot-dipped Galvalume line in Meigang cold rolling plant were summarized, and the type of post-treatment films was reasonably selected according to the user’s requirements and the products service environment to make the post-treatment films have application performance. The controlling points of the post-treatment process of the hot-dipped Galvalume line was focused on, so as to obtain uniform and stable film thickness. In particular, the improvement measures of surface defects-stains and missing coating defects were summarized to reduce quality loss and improve the comprehensive performance of the hot-dipped Galvalume products.