Page 22 - 理化检验-物理分册2024年第八期

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试验与研究 DOI:10.11973/lhjy-wl240109

热镀锌钢板烘烤硬化值检测的影响因素

罗 健，高兴健，李 勇，杨继武
（宝钢湛江钢铁有限公司 制造管理部，湛江 524000）

摘 要：为了研究热镀锌钢板烘烤硬化值检测的影响因素，主要介绍了HC180BD+Z钢板烘烤
硬化值的检测方法与检测结果，分析并探讨了试验温度、保温时间、加热装置、拉伸预应变等烘烤条
件对烘烤硬化值检测的影响因素。结果表明：采用相同加热装置时，将保温时间控制为20 min，试
验温度由160 ℃上升至180 ℃， 烘烤硬化值一直保持上升趋势，但当试验温度为160~170 ℃时，烘烤
硬化值的上升趋势要比试验温度为170~180 ℃的变化明显；采用相同加热装置时，控制试验温度为
170 ℃， 当保温时间由16 min延长至20 min时，烘烤硬化值随保温时间的延长而上升，但当保温时间
由20 min延长至30 min时，烘烤硬化值无明显变化；采用相同的试验温度和保温时间，不同的加热
装置时，烘烤硬化值的检测结果无明显差异；当拉伸预应变由1%增大至2%时，烘烤硬化值的变化
趋势与拉伸预应变同步，均有上升趋势，当拉伸预应变由2%增大至3%时，烘烤硬化值却随着拉伸
预应变的增大呈下降趋势。
关键词： 热镀锌钢板；烘烤硬化值；试验温度；保温时间；加热装置；拉伸预应变
中图分类号：TG115.5；TB31 文献标志码：A 文章编号：1001-4012(2024)08-0006-04
Influencing factors of bake hardening value detection of

hot-dip galvanized steel sheet

LUO Jian, GAO Xingjian, LI Yong, YANG Jiwu
(Manufacturing Management Department, Baosteel Zhanjiang Iron & Steel Co., Ltd., Zhanjiang 524000, China)

Abstract: In order to study the influencing factors of bake hardening value detection of hot-dip galvanized steel
sheet, the detection method and test results of bake hardening value of HC180BD + Z steel sheet were mainly introduced.
The influencing factors of bake hardening value detection such as test temperature, holding time, heating device and
tensile pre-strain were analyzed and discussed.The results show that when the same heating device was used, the holding
time was controlled to 20 min, and the test temperature rose from 160 ℃ to 180 ℃, the bake hardening value kept an
upward trend. However, when the test temperature was 160~170 ℃, the upward trend of bake hardening value was more
obvious than that of 170~180 ℃. When the same heating device was used, the test temperature was controlled at 170 ℃.
When the holding time was extended from 16 min to 20 min, the bake hardening value increased with the extension of
the holding time, but when the holding time was extended from 20 min to 30 min, the bake hardening value did not
change significantly. There was no significant difference in the test results of bake hardening value when the same test
temperature and holding time were used and different heating devices were used. When the tensile pre-strain increased
from 1% to 2%, the change trend of the bake hardening value was synchronized with the tensile pre-strain, and both
had an upward trend. When the tensile pre-strain increased from 2% to 3%, the bake hardening value decreased with the
increase of the tensile pre-strain.
Keywords: hot-dip galvanized steel sheet; bake hardening value; test temperature; heat preservation time; heating
device; tensile pre-strain

热镀锌烘烤硬化钢板具有超低碳无间隙原子钢
收稿日期：2024-04-18
的深冲性能和含磷钢板的高强度以及抗凹陷性能，
作者简介：罗 健（1993-） ，男，本科，主要从事汽车用钢板生产
[1]
制造工艺设计工作，685268@baosteel.com 烘烤硬化值是烘烤硬化钢最主要的特性值 。评估
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