Determine on Hot-dip Al-Zn Alloy Process of Steel Sheet
摘 要
研究了钢板热浸镀55Al-Zn-1.5Si合金层的工艺,分析了不同的助镀剂配方及浸镀参数对镀层质量的影响,确定出了较理想的热浸镀工艺.结果表明:助镀剂基本不影响镀层的厚度,但助镀剂的选择对铝锌合金镀层耐蚀性能有直接影响;适用于钢板热浸镀55Al-Zn-1.5Si合金层的水溶性助镀剂配方为27%ZnCl2+10%NH4Cl;较理想的浸镀温度为640~660 ℃,浸镀时间为6 min,提升速度为5 m·min-1.
Abstract
Through experiments of hot-dipping 55Al-Zn-1.5Si alloy coating on the steel sheet,the effect of plating auxiliary and hot-dip processing parameters on coating thickness and quality were studied.The results show that the plating auxiliary had less effect on the alloy layer thickness,but influenced the anticorrosion of Al-Zn alloy coating directly.The optimized composition of water-soluble auxiliary for 55Al-Zn-1.5Si alloy coating was 27%ZnCl2+ 10%NH4Cl.When the hot dip temperature was 640-660 ℃,the hdding time was 6 minute and the raising speed was 5 m·min-1,coatings with high quality could be gained.
中图分类号 TG146
所属栏目 试验研究
基金项目 广西科技计划重点研究项目(桂科能0443001-1)
收稿日期 2007/10/23
修改稿日期 2007/12/31
网络出版日期
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备注肖莹莹(1982-),女,山东齐河人,助教,硕士研究生.
引用该论文: XIAO Ying-ying,XIAO Gang,SHANGGUAN Qi,ZENG Jian-min. Determine on Hot-dip Al-Zn Alloy Process of Steel Sheet[J]. Materials for mechancial engineering, 2008, 32(11): 28~30
肖莹莹,肖罡,上官琪,曾建民. 钢板热浸镀铝锌合金工艺的确定[J]. 机械工程材料, 2008, 32(11): 28~30
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参考文献
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【8】北京科技大学.一种熔剂法热浸镀低铝锌合金用水熔剂及其使用方法:中国,CN03121416.9[P].2003-03-28.
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【10】马鞍山市鼎泰金属制品公司.新型热浸镀用复合稀土盐助镀溶剂:中国,CN96120983.6[P].1996-12-10.
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【13】邹友忠,倪志坚,曹关中,等.A3钢热浸镀55%Al-Zn合金工艺及涂层性能研究[J].材料保护,2001(7):31-33.
【14】孙永昌.热浸镀合金用熔剂法助镀剂的研究[J].天津冶金,1997(4):21-24.
【15】顾国成,刘邦津.热浸镀[M].北京:化学工业出版社,1988:86-89.
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