MnO对碳钢药芯焊丝性能影响研究

详细信息

Study on Effect of MnO on Properties of Carbon Steel Flux Cored Wire

摘要: 以T492T1-1C1A型药芯焊丝为例,通过对熔渣组分、熔敷金相组织、熔敷金属化学成分、扩散氢含量、力学性能的试验对比与分析,研究了MnO在配方中不同加入量对焊缝组织及熔敷金属力学性能的影响。结果表明,随着MnO的加入量增多,熔敷金属中Mn与O含量未呈现明显变化;熔敷金属的拉伸试验伸长率和低温冲击吸收功先升高后降低,在MnO质量分数为0.5%时获得了较好的焊缝微观组织和力学性能;熔敷金属扩散氢含量有降低趋势。
- 药芯焊丝 /
- MnO /
- 力学性能
Abstract: Taking T492T1-1C1A flux cored wire as an example, the influences of different additions of MnO in the formula on the weld structure and the mechanical properties of the deposited metal is studied by comparing and analyzing the slag composition, metallographic structure and chemical composition of the deposited metal, diffusion hydrogen content and mechanical properties. The results show that with the increase of MnO addition, the contents of Mn and O in the deposited metal do not show significant changes. The elongation and low-temperature impact absorption work of the deposited metal increase first and then decrease. Better weld microstructure and mechanical properties are obtained when the mass fraction of MnO is 0.5%. The diffusion hydrogen content of the deposited metal tends to decrease.
- flux cored wire /
- MnO /
- mechanical property

[1]	张占伟,李午申,薛振奎,等.自保护药芯焊丝熔敷金属中O、N的控制及其对显微组织和韧性的影响[J].天津大学学报, 2010, 43(2):186-189.
[2]	川本裕晃,池田哲直,渡辺博久.Ni基合金フラックス入りワイヤ:JP,2011140064 A[P].2011-07-21.
[3]	曹全金.镁合金活性MIG焊接研究[D].大连:大连理工大学, 2012.
[4]	杨刚.铝合金A-TIG焊活性剂成分设计研究[D].镇江:江苏科技大学, 2012.
[5]	HUANG H, SHYU S, TSENG, et al.Effects of the process parameters on austenitic stainless steel by TIG-flux welding[J].Journal of Materials Science and Technology,2006,22(3):367-374.
[6]	郑秀芹,张振芹,孙业宏,等. WH.PP-AN29气体保护药芯焊丝的研制及应用[J].山东机械, 1999(2):26-27.
[7]	栗卓新,蒋建敏,魏琪.熔渣成分对气保护不锈钢药芯焊丝脱渣性影响的研究[J].材料工程, 2003, 31(1):30-33.
[8]	王恒,栗卓新, TILLMANN W,等.药芯组成及工艺参数对ENiCrMo3T0-4药芯焊丝气孔敏感性的影响[J].稀有金属材料与工程, 2018, 47(4):1205-1209.
[9]	王恒. ENiCrMo3T0-4药芯焊丝焊缝金属气孔及热裂纹敏感性研究[D].北京:北京工业大学, 2016.
[10]	于治水,刘孝曾,张德林,等.药芯焊丝焊缝夹杂物探讨[J].船舶工程, 1999, 21(2):28-31.
[11]	丁韦,范桂芝,王贵山.夹杂物对埋弧焊焊缝韧性的影响[J].焊接技术, 1991, 20(6):11-13.