冷熱兼容鍍鋅線產(chǎn)品表面鋅疤缺陷的預(yù)防

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摘 要：某冷軋廠熱基鍍鋅線在改造為冷熱兼容鍍鋅線后，出現(xiàn)鋅疤缺陷且無明顯規(guī)律?；阡\疤缺陷的成形理論，對(duì)造成鋅疤缺陷的成因進(jìn)一步分析，提出了預(yù)防措施。

關(guān)鍵詞：冷熱兼容；鍍鋅；鋅渣鋅疤；清潔

PREVENTION OF ZINC SCAR DEFECTS ON THE SURFACE OF COLD AND HOT COMPATIBLE GALVANIZED LINE PRODUCTS

Wang Jingang

（Cold Rolling Project Department of Tangshan Company of HBIS    Tangshan    063000，China）

Abstract：After a hot galvanizing line in a cold rolling plant was transformed into a cold and hot compatible galvanizing line， zinc scar defects appeared without obvious patterns. Based on the forming theory of zinc scar defects， further analysis is conducted on the causes of zinc scar defects and preventive measures are proposed.

Key words： cold and hot compatibility; galvanizing; zinc scar; cleaning

1    產(chǎn)線簡(jiǎn)介

某冷軋廠熱基鍍鋅線年產(chǎn)50萬t，產(chǎn)品規(guī)格0.8～5.0×820～1 524 mm；鋼種：CQ、 DQ 、HSLA；表面狀態(tài)：無鋅花；鋅層厚度：60～

600 g/m2雙面；后處理：鉻化＋涂油；采用改良森吉米爾法，機(jī)組入口預(yù)留清洗段位置，產(chǎn)線布局如圖1所示。（剩余2902字）