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TiO2对水下湿法焊接熔渣形貌及微观组织的影响

李海新, 杨振林, 殷子强, 张琳琳

李海新, 杨振林, 殷子强, 张琳琳. TiO2对水下湿法焊接熔渣形貌及微观组织的影响[J]. 焊接学报, 2017, 38(4): 51-54. DOI: 10.12073/j.hjxb.20170412
引用本文: 李海新, 杨振林, 殷子强, 张琳琳. TiO2对水下湿法焊接熔渣形貌及微观组织的影响[J]. 焊接学报, 2017, 38(4): 51-54. DOI: 10.12073/j.hjxb.20170412
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LI Haixin, YANG Zhenlin, YIN Ziqiang, ZHANG Linlin. Effect of addition amount of TiO2 on morphology and microstructure of slag during underwater wet welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 51-54. DOI: 10.12073/j.hjxb.20170412
Citation: LI Haixin, YANG Zhenlin, YIN Ziqiang, ZHANG Linlin. Effect of addition amount of TiO2 on morphology and microstructure of slag during underwater wet welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 51-54. DOI: 10.12073/j.hjxb.20170412
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TiO2对水下湿法焊接熔渣形貌及微观组织的影响

  • 山东省科学院海洋仪器仪表研究所 山东省海洋环境监测技术重点实验室, 青岛 266001

基金项目: 国家自然科学基金项目（51305245、51505267）；山东省自然科学基金项目（ZR2014EEP016）；山东省科学院青年基金项目（2013QN043）；青岛市应用基础研究计划项目（15-9-1-53-JCH）；青岛市市南区科技发展资金项目（2015-6-029-ZH）

Effect of addition amount of TiO2 on morphology and microstructure of slag during underwater wet welding

  • Shandong Provincial Key Laboratory of Ocean Environmental Monitoring Technology, Institute of Oceanographic Instrumentation, Shandong Academy of Sciences, Qingdao 150011, China

摘要

    摘要
  • 摘要: 文中采用自制的金红石型碳钢焊条进行水下湿法焊接，重点分析了药皮中TiO2的加入量对熔渣形貌及微观组织结构的影响.由熔渣的成分及物相分析得出，熔渣的主要组成相为Fe2MnTi3O10，还含有少量的Ca2SiO4和自由氧化物.对熔渣的宏观形貌及微观组织结构分析发现，当药皮中TiO2加入量较大时，熔渣致密松脆，熔渣的微观组织中灰白色条状相粗大，有利于熔渣脱渣；当减小TiO2的加入量，增大CaCO3的加入量时，熔渣变得松散，出现粘渣现象，此时微观组织中的灰白色条状相变得细小，不利于熔渣脱渣.
    Abstract: In this paper, the autonomous rutile type carbon steel electrode was used for underwater wet welding. It focused on the effect of the addition amount of TiO2 in the coated on the morphology and microstructure of slag. By composition and phase analysis of slag, the main phase of slag was Fe2MnTi3O10, and it also contained a small amount of Ca2SiO4 and free oxides. By morphology and microstructure analysis of slag, it found that when the addition amount of TiO2 was larger, the slag was compact. Furthermore, the gray stripe phase in the microstructure of slag was bulky, which was advantageous to the detachability of slag. With the decrease of addition amount of TiO2 and increase of addition amount of CaCO3, the slag became loose and viscous slag occurred. Meanwhile, the gray stripe phase in the microstructure changed thin, which was not advantageous to the detachability of slag.
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  • 收稿日期:  2015-06-01

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