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Study on Phosphating Pretreatment and Electrophoretic Properties of Hot-Based Zn-Al-Mg Steel Plate

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  • 1.Technology Research Institute of Shougang Group Co.,Ltd.,Beijing 100043,China; 2.Beijing Key Laboratory of Green Recyclable Process for Iron & Steel Production Technology,Beijing 100043,China; 3.Manufacturing Department,Shougang Jingtang United Iron and Steel Co.,Ltd.,Tangshan 063210,China

Received date: 2022-09-20

  Revised date: 2022-10-14

  Accepted date: 2022-11-17

  Online published: 2023-03-15

Abstract

The coating and corrosion resistance of hot-based zinc-aluminium-magnesium steel sheet was investigated by means of SEM,XRD,film weight,film thickness,roughness,corrosion resistance,adhesion,stone resistance,water resistance and other comprehensive testing methods,taking the coating performance of hot-rolled pickling plate after electrogalvanizing as a comparison index.Results showed that the pretreatment performance of hot-based zinc-aluminium-magnesium material was equivalent to that of electrogalvanizing material.The coverage rate,particle size,film weight and surface ratio of the phosphating film could meet the quality requirements of the automobile factory.The appearance,adhesion,stone strike resistance and water resistance of the electrophoretic paint film were consistent with those of the electroplated zinc material.The corrosion resistance of hot-based zinc-aluminium-magnesium and its electrophoretic coating was significantly better than that of the hot-rolled pickling plate electrogalvanizing material.After 1 000 h of neutral salt spray corrosion,the bare hot-based zinc-aluminiummagnesium plate did not show red rust,whereas the hot-rolled pickling plate electrogalvanized material showed about 10%of the area of red rust in 336 h.Besides,the stroke × expansion width of the hot-rolled pickling plates after electrogalvanizing was larger than 4 times that of hot-based zinc aluminum magnesium steel plate after electrophoresis.

Cite this article

LONG Yuan, ZOU Ying, HAO Yu-lin, ZHOU Jian, LIU Wu-hua, LIU Hua-sai, LI Xue-tao, WANG Chao-bin . Study on Phosphating Pretreatment and Electrophoretic Properties of Hot-Based Zn-Al-Mg Steel Plate[J]. Materials Protection, 2023 , 56(3) : 166 -173 . DOI: 10.16577/j.issn.1001-1560.2023.0073

References

[1] 程 霖,王 单,张妹英.连续热基镀锌产品厚边问题的分析与解决[J].中国金属通报,2019(9):94-95.CHENG L,WANG D,ZHANG M Y.Analysis and solution of thick edge problem of continuous hot base galvanizing products[J].China Metal Bulletin,2019(9):94-95.

[2] 魏东华,唐嘉悦.500 MPa 级热基板镀锌产品生产工艺的研究[J].世界有色金属,2021(1):223-224.WEI D H,TANG J Y.Study on the production process of 500 MPa hot-plate galvanizing products[J].World Nonferrous Metals,2021(1):223-224.

[3] 张娟梅.热轧热镀锌板生产工艺研究及应用[J].山西冶金,2010,33(1):53-54.ZHANG J M.Research and Application in Production Process of Hot-rolld Galvanized Strip[J].Shanxi Metallurgy,2010,33(1):53-54.

[4] 邹 英,韩 赟,刘华赛,等.热基镀锌双相钢的组织性能与表面质量[J].钢铁,2021,56(11):104-111.ZOU Y,HAN Y,LIU H S,et al.Microstructure,properties and surface quality of hot-rolled galvanized dual phaes steel[J].Iron and steel,2021,56(11):104-111.

[5] RIENER C K,RAAB A,LUCKENEDER G.Zinc-Magnesium-Aluminium (ZM)-HDG-Coated Steel Sheet for Structural Parts to Outer Panels: SAE WCX 2017(Annually Held World Congress of SAE International)[C].Detroit:[s.n.],2019.

[6] ANGELI G,RICHTER A,SCHULZ J,et al.Zinc-Magnesium-Aluminium for Automotive Industry: International Conference on Zinc & Zinc Alloy Coated Steel Sheet Asi A-pacific Galvanizing Conference[C].Beijing:Chinese Society of Metals,2013.

[7] PROSEK T,NAZAROV A,GOODWIN F,et al.Improving corrosion stability of Zn-Al-Mg by alloying for protection of car bodies [J].Surface and Coatings Technology,2016(36):439-447.

[8] LEBOZEC N,THIERRY D,ROHWERDER M,et al.Effect of carbon dioxide on the atmospheric corrosion of Zn-Mg-Al coated steel[J].Corrosion Science,2013,74(9):379-386.

[9] KRIEG R,ROHWERDER M,EVERS S,et al.Cathodic self-healing at cut-edges: The effect of Zn2+and Mg2+ions[J].Corrosion Science,2012,65(12):119-127.

[10] 吕家舜,李 锋,杨洪刚,等.热浸镀锌铝镁钢板镀层组织及腐蚀性能研究[J].材料工程,2012(10):89-93.LV J S,LI F,YANG H G,et al.Research on coating microstructure and corrosion behavior of galvanized Zn-Al-Mg coated steel sheet [J].Journal of Materials Engineering,2012(10): 89-93.

[11] 蒋光锐,郑学斌,赵晓非,等.汽车车身用热浸镀锌铝镁镀层钢板[J].汽车工艺与材料,2021(4):12-22.JIANG G R,ZHENG X B,ZHAO X F,et al.Application of the Hot-Dip Galvanized Zn-Al-Mg Alloyed Coating Steel Sheet on Automobile Body[J].Auto-Mobile Technology &Material,2021(4):12-22.

[12] 龙 袁,刘 斌,姚士聪,等.锌铝镁镀层钢板前处理与电泳性能研究[J].电镀与涂饰,2021,40(20):1 585-1 590.LONG Y,LIU B,YAO S C,et al.Study on pretreatment and electrophoresis performance of Zn-Al-Mg alloy coated steel sheet [J].Electroplating & Finishing,2021,40(20):1 585-1 590.

[13] 张树亮.热基锌铝镁镀层材料在光伏支架领域的应用[J].金属世界,2021(6):32-34.ZHANG S L.Application of Thermal-based Zinc-aluminummagnesium Coating Materials in Photovoltaic Scaffolds[J].Metal World,2021(6):32-34.

[14] 曹吉平.前副车架加强板成形工艺改进研究[D].南昌:南昌大学,2022.CAO J P.Study on Forming Process Improvement of Reinforcing Plate of Front Subframe[D].Nanchang: Nanchang University,2022.

[15] 迟广成,赵爱林,宋丽华.X 射线粉晶衍射仪分析磷化膜组成[J].岩矿测试,2007(2):163-164.CHI G C,ZHAO A L,SONG L H.Analysis of Phosphide Tunica Components by X - ray power Diffractometer[J].Rock and Mineral Analysis,2007(2):163-164.

[16] 蓝荣福.车身电泳粗糙度问题改善措施探讨[J].涂料工业,2019,49(4):71-74.LAN R F.Discussion on Improvement of Electrophoresis Roughness for Car Body[J].Paint & Coatings Industry,2019,49(4):71-74.

[17] 周 杰,陈慕祖.油漆桔皮的影响因素及防治方法[J].现代涂料与涂装,2003(5):42-44.ZHOU J,CHEN M Z.Influencing factors and prevention methods for orange peel of paint[J].Modern Paint & Finishing,2003(5):42-44.

[18] 王纳新,张馨月,杜屹峰.汽车车身涂层抗石击性试验及评价方法[J].汽车工艺与材料,2012(3):1-5.WANG N X,ZHANG X Y,DU Y F,et al.Test and evaluation method for rock impact resistance of coatings on automobile body[J].Automobile Technology & Material,2012(3):1-5.

[19] 陈 磊,邢 阳,俞 雁,等.不同钢板在盐雾试验中的腐蚀行为[J].电镀与涂饰,2020,39(22):1 528-1 532.CHEN L,XING Y,YU Y,et al.Corrosion behaviors of different steel sheets in salt spray tests [J].Electroplating &Finishing,2020,39(22):1 528-1 532.

[20] 杜 昕,张满仓,段生朝,等.高耐蚀锌铝镁镀层研究现状[J].工程科学学报,2019,41(7):847-856.DU X,ZHANG M C,DUAN S C,et al.Research status of high corrosion-resistant Zn-Al-Mg coating[J].Chinese Journal of Engineering,2019,41(7):847-856.

[21] 袁训华,林 源,张启富.热镀锌铝镁镀层的切边保护性能和耐腐蚀机理[J].中国有色金属学报,2015,25(9):2 453-2 463.YUAN X H,LIN Y,ZHANG Q F,et al.Cut-edge protection performance and corrosion resistance mechanisms of galvanized Zn-Al-Mg ahoy coating[J].The Chinese Journal of Nonferrous Metals,2015,25(9): 2 453-2 463.

[22] 李 锋,吕家舜,杨洪刚,等.锌铝镁镀层在NaCl 体系中的腐蚀行为[J].中国表面工程,2011,24(4):25-29.LI F,LV J S,YANG H G,et al.The Corrosion Behavior For Zn-Al-Mg Coating in NaCl System[J].China Surface Engineering,2011,24(4):25-29.

[23] DUCHOSLAV J,STEINBERGER R,ARNDT M,et al.Evolution of the surface chemistry of hot dip galvanized Zn-Mg-Al and Zn coatings on steel during short term exposure to sodium chloride containing environments[J].Corrosion Science,2015(91):311-320.

[24] 薛雷刚,吕春雷,印仁和,等.钢板上锌镁合金镀层的耐腐蚀机理: 2009 年全国电子电镀及表面处理学术交流会[C].上海:中国电子学会及上海电子学会,2009:96-100.XUE L G,LV C L,YIN R H,et al.Anticorrosive Mechanism of Zn-Mg-Al Alloy Coating on Steel Sheets:2009 National Electronic Electroplating and Surface Treatment academic Exchange Conference[C].Shanghai:Chinese Institute of Electronics and Shanghai Institute of Electronics,2009:96-100.

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