DP980-GA双相钢色差斑和黑点缺陷分析与控制

doi:10.13251/j.issn.0254-6051.2021.01.042

金属热处理 ›› 2021, Vol. 46 ›› Issue (1): 230-234.DOI: 10.13251/j.issn.0254-6051.2021.01.042

DP980-GA双相钢色差斑和黑点缺陷分析与控制

张鹏, 刘学良, 周屿, 贾冬梅

华菱安赛乐米塔尔汽车板有限公司,湖南娄底 417000

收稿日期:2020-06-08 出版日期:2021-01-25 发布日期:2021-01-26
作者简介:张鹏(1974—),男,产品工程师,硕士,主要研究方向为冷、热成型高强钢的热镀锌及合金化生产,E-mail:xtaeeq8@163.com

Analysis and control of color difference and black spots defects on the surface of DP980-GA dual-phase steel

Zhang Peng, Liu Xueliang, Zhou Yu, Jia Dongmei

Valin ArcelorMittal Automotive Steel Co.,Ltd.,Loudi Hunan 417000,China

Received:2020-06-08 Online:2021-01-25 Published:2021-01-26

摘要/Abstract

摘要： 利用扫描电镜分析了DP980-GA双相钢镀层表面出现色差斑和黑点缺陷的原因,阐述了缺陷形成的机理。结果表明:退火炉加热段的湿气氛不充分、氢气含量过高,快冷段的带钢温度过低,引起Mn、Cr等合金元素在基体表面的氧化富集,影响Zn-Fe之间的扩散均匀性;带钢经热处理后入锅温度过高,镀层的热镀锌合金化程度加剧,导致基体铁从金属氧化物边界扩散显著。在实际生产中,通过调整退火炉的湿气氛注入量,注入方式由带钢的单面改为双面;提高带钢的快冷温度;降低炉内热区的氢气含量和带钢的入锅温度等措施,合金化镀层表面的色差斑和黑点缺陷得到了较好控制。

关键词: 双相钢, 氧化, 富集, 扩散, 热镀锌合金化

Abstract: Causes of color difference and black spots defects on the coating surface of DP980-GA dual phase steel were analyzed by means of SEM,and the mechanism of defects formation was discussed.The results show that insufficient wet gas,too high content of hydrogen in annealing heating section and too low temperature of strip in annealing rapid cooling section cause the oxidation and enrichment of alloy elements Mn and Cr on the surface of strip,which affects the uniformity of diffusion between Zn and Fe;too high immersing temperature of strip after heat treatment increases the galvannealing degree of coating and causes significant diffusion of Fe from the boundary of alloy oxidation.During practical production,technological measures were adopted such as adjusting the amount of wet gas injection in annealing heating section,changing wet gas injection mode from single side to double side,increasing the temperature of strip in annealing rapid cooling section and decreasing hydrogen content of annealing heating section and the immersing temperature of strip,and color difference and black spots defects on the surface of alloy coating were effectively controlled.

Key words: dual-phase steel, oxidation, enrichment, diffusion, galvannealing

中图分类号:

TG174.443

张鹏, 刘学良, 周屿, 贾冬梅. DP980-GA双相钢色差斑和黑点缺陷分析与控制[J]. 金属热处理, 2021, 46(1): 230-234.

Zhang Peng, Liu Xueliang, Zhou Yu, Jia Dongmei. Analysis and control of color difference and black spots defects on the surface of DP980-GA dual-phase steel[J]. Heat Treatment of Metals, 2021, 46(1): 230-234.

参考文献

[1] 张理扬,李俊,左良.汽车用合金化热镀锌钢板的发展趋向[J].钢铁钒钛,2004,25(4):15-19.
Zhang Liyang,Li Jun,Zuo Liang.Developing trend of galvannealed auto sheet steels[J].Iron Steel Vanadium Titanium,2004,25(4):15-19.
[2] 蒋光锐,王海全,刘李斌,等.加热段露点对C-Mn-Si-Al 高强钢选择性氧化的影响[J].金属热处理,2017,42(11):198-201.
Jiang Guangrui,Wang Haiquan,Liu Libin,et al.Effect of dew point during heating on selective oxidation behavior of C-Mn-Si-Al high strength steel[J].Heat Treatment of Metals,2017,42(11):198-201.
[3] 傅影,腾华湘,李声慈,等.合金化热镀锌带钢漏镀缺陷分析[J].金属热处理,2014,39(3):148-151.
Fu Ying,Teng Huaxiang,Li Shengci,et al.Analysis of plating miss of the galvanealed steel strip[J].Heat Treatment of Metals,2014,39(3):148-151.
[4] 巫雪松,崔秋艳,郑晓飞.镀锌DP780漏镀缺陷的成因分析与预防措施[J].中国冶金,2018,28(2):57-60.
Wu Xuesong,Cui Qiuyan,Zheng Xiaofe.Reason for failure of hot dip galvanizing on cold rolled DP780 steel and its preventive measure[J].China Metallurgy,2018,28(2):57-60.
[5] 滕华湘,李远鹏,江社明,等.露点切换对高强双相钢表面选择性氧化行为的影响[J].金属热处理,2015,40(4):181-184.
Teng Huaxiang,Li Yuanpeng,Jiang Sheming,et al.Influence of dew point shifting on selective oxidation behavior of high strength dual phase steel[J].Heat Treatment of Metals,2015,40(4):181-184.
[6] 齐达,李润昌.热镀锌钢板漏镀缺陷的成因与对策[J].电镀与涂饰,2017,36(20):1100-1103.
Qi Da,Li Runchang.Cause analysis of skip plating defects on hot-dip galvanized steel sheets and countermeasures[J].Electropating and Finishing,2017,36(20):1100-1103.
[7] 王玉,崔青玲,李建平,等.退火露点对TWIP 钢选择性氧化及可镀性的影响[J].金属热处理,2017,42(2):163-167.
Wang Yu,Cui Qingling,Li Jianping,et al.Effect of annealing dew point on selective oxidation and galvanizability of TWIP steel[J].Heat Treatment of Metals,2017,42(2):163-167.
[8] 张雨泉,杨芃,许秀飞.汽车板生产技术与管理[M].北京:化学工业出版社,2018:118-119.
[9] 刘李斌,蒋光锐,马兵智,等.连续退火热镀锌板镀层表面黑点缺陷研究[J].金属热处理,2014,39(9):137-140.
Liu Libin,Jiang Guangrui,Ma Bingzhi,et al.Study of dark dot defect on coating surface of continuously annealed hot-dip galvanized steel sheet[J].Heat Treatment of Metals,2014,39(9):137-140.
[10] 张建强,陈长风,郑雁军,等.厚规格镀锌板表面黑斑缺陷分析[J].金属热处理,2016,41(4):205-207.
Zhang Jianqiang,Chen Changfeng,Zheng Yanjun,et al.Analysis on surface black spot defects of thick gauge galvanized sheet[J].Heat Treatment of Metals,2016,41(4):205-207.

[1]	赵子硕, 武美萍, 缪小进, 崔宸, 龚玉玲. 激光功率对FeCoNiCrMo高熵合金/氧化石墨烯复合涂层组织及耐腐蚀性能的影响[J]. 金属热处理, 2022, 47(4): 251-257.
[2]	时海芳, 李强. 碳含量对Al_0.5Co_0.5NiCrFe高熵合金涂层组织与性能的影响[J]. 金属热处理, 2022, 47(3): 136-141.
[3]	李敬, 杨跃辉, 苑少强, 张晓娟. Fe-40%Ni合金的高温氧化行为[J]. 金属热处理, 2022, 47(2): 74-77.
[4]	孙定邦, 王永胜, 高洁, 贺志勇, 吴艳霞, 周兵, 马永, 于盛旺. 等离子表面渗Nb对γ-TiAl合金扩散焊接性能的影响[J]. 金属热处理, 2022, 47(2): 213-218.
[5]	赵蕾, 李建铭, 穆晓彪, 柴希阳, 柴锋, 潘涛. 加热温度对10CrNiCuSi钢氧化铁皮的影响[J]. 金属热处理, 2022, 47(1): 63-68.
[6]	焦军红, 李鑫, 刘振宇. 稀土Ce对310S奥氏体耐热不锈钢高温氧化行为的影响[J]. 金属热处理, 2022, 47(1): 120-124.
[7]	赵小军, 梁晓, 蔡圳阳, 肖来荣. 渗铝氧化处理对CLAM钢组织和力学性能的影响[J]. 金属热处理, 2022, 47(1): 192-196.
[8]	李荣斌, 李珂, 蒋春霞, 张如林. AlCrTaTiZrV高熵合金氮化物扩散阻挡层的制备及其热稳定性[J]. 金属热处理, 2021, 46(9): 216-222.
[9]	庄明塔, 徐睿思, 刘灿森, 揭晓华. 阳极氧化法构筑的铝基超疏水表面及其耐蚀性能[J]. 金属热处理, 2021, 46(9): 241-246.
[10]	马植甄, 朱佳浩, 张晖. Si对高熵合金涂层组织和高温抗氧化性能的影响[J]. 金属热处理, 2021, 46(8): 46-50.
[11]	孔令利, 贺瑞军, 刘杭, 成亦飞. 真空热处理后Ni-Co-W-Ta-Al-Cr-Mo-Re-Nb-Hf系镍基单晶高温合金表面的氧化状态分析[J]. 金属热处理, 2021, 46(8): 61-64.
[12]	刘靖宝, 田秀刚, 张杰, 魏焕君, 杨丽娜, 王朝, 李孟星. 低成本800 MPa级镀锌超高强度双相钢的微观组织与性能[J]. 金属热处理, 2021, 46(8): 73-76.
[13]	陈继平, 张乐, 邢献强, 孙国庆, 钱健清. 氧化时间对低合金弹簧钢奥氏体晶粒度测定的影响[J]. 金属热处理, 2021, 46(8): 241-245.
[14]	程磊, 孙彬, 高炜, 杜重洋. 氧化时间及铬含量对Fe-Cr钢高温氧化行为的影响[J]. 金属热处理, 2021, 46(7): 65-71.
[15]	于江涵, 耿铁强, 李文, 朱正旺, 张海峰. Ni-Al-W活性材料的界面扩散动力学[J]. 金属热处理, 2021, 46(7): 98-102.

DP980-GA双相钢色差斑和黑点缺陷分析与控制

Analysis and control of color difference and black spots defects on the surface of DP980-GA dual-phase steel

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价