首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Process Parameters on the Structure and Properties of Galvanized Sheets
【24h】

Effect of Process Parameters on the Structure and Properties of Galvanized Sheets

机译:工艺参数对镀锌板结构和性能的影响

获取原文
获取原文并翻译 | 示例
           

摘要

The effect of galvanizing parameters on the structure (spangle size and coating microstructure) and properties (formability and corrosion resistance) of galvanized sheets was studied in a hot dip process simulator (HDPS) in a conventional Pb bearing (0.08-0.10%) zinc bath by varying zinc bath Al level (0.10-0.28%), bath temperature (718-743 K), dipping time (1.5-3.5 s), wiping gas flow rate (200-450 lpm), nozzle distance (15-17 mm) and wiping delay time (0.1-2.1 s). Al level in the range of 0.18-0.24% in combination with dipping time of 1.5-2.5 s and bath temperature of 718-733 K results in superior formability (E_(cv): ~9.3 mm) of the composite (thickness: 0.8 mm). High post-dip cooling rates (~25 K/s) suppress spangle growth (spangle size: ~2 mm). The spangle size of the GI sheet strongly influences the corrosion rate which increases from 5.8 to 9.2 mpy with a decrease in spangle size from 17.5 to 3 mm. By controlling the Al level (0.20%) in zinc bath and bath temperature (733 K), the corrosion rate of mini-spangle GI sheet can be controlled to a level of 5.5 mpy.
机译:在传统铅轴承(0.08-0.10%)的锌浴中,在热浸工艺模拟器(HDPS)中研究了镀锌参数对镀锌板结构(光斑尺寸和涂层微观结构)和性能(可成形性和耐蚀性)的影响。通过改变锌浴液中的铝含量(0.10-0.28%),浴液温度(718-743 K),浸入时间(1.5-3.5 s),擦拭气体流速(200-450 lpm),喷嘴距离(15-17 mm)和擦拭延迟时间(0.1-2.1 s)。 Al含量在0.18-0.24%的范围内,浸入时间为1.5-2.5 s,熔池温度为718-733 K,可实现复合材料(厚度:0.8 mm)的优异成形性(E_(cv):〜9.3 mm) )。较高的浸入后冷却速度(〜25 K / s)抑制了花片的生长(花片尺寸:〜2 mm)。 GI薄板的光斑尺寸极大地影响腐蚀速率,腐蚀速率从5.8 mpy增加到9.2 mpy,而光斑尺寸从17.5 mm减小到3 mm。通过控制锌浴中的Al含量(0.20%)和熔池温度(733 K),可以将微晶石GI板的腐蚀速率控制在5.5 mpy。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号