Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第6卷    第1期    总第18期    1996年3月

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文章编号:(1996)01-74-5
A3钢热浸铝镀层生长规律的影响因素
夏原 姚枚 张瑞平

(哈尔滨工业大学433信箱,哈尔滨150001)

摘 要: 研究了A3钢采用熔剂法热浸铝时,温度、时间对浸铝层生长规律的影响。结果表明,表面层的生长过程具有“凝固溶解期”→“扩散增厚期”→“过渡平衡期”三个不同阶段,过渡层的生长符合指数增长规律。根据生长规律曲线提出了耐蚀、耐热用浸铝钢的选择规范。

 

关键字: 热浸铝 温度 时间 表面层 过渡层

THE AFFECTING OF TEMPERATURE AND TIME TO THE GROWTH OF HOT-DIP ALUMINIZING COATING ON A3 STEEL
Xia Yuan,Yao Mei,Zhang Ruiping

P. O. Box 433, Harbin Institute of Technology,Harbin 150001

Abstract:Hot-dip aluminizing A3 steel has been investigated by optical microscopy, the investigation con-cerned with the affecting of temperature and time to the growth of hot-dip aluminizing coating.  After hot-dip by flux method, it showed that the growth process of surface layer experiences three different periods, i.e."solidifi-cation-disolution period"→"diffusion-accretion period"→“transition-equlibrium period", the growth of transition layer coincides with exponent law. In addition,the choice criterion of the hot-dip aluminizing of the steel used in environment of corrosion and oxidation has been proposed in the light of the growth law.

 

Key words: hot dip aluminizing  temperature  time  surface layer  transition layer

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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