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铝-钢直焊生产线技术在电解铝生产中的实践应用
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作者 陈永宏 《甘肃冶金》 2024年第2期88-91,共4页
通过对阳极导杆铝-钢直焊成套装置的运行情况、功能特点、铝-钢直焊接头的力学性能和使用效果等进行分析,得出铝-钢直焊成套装置具有自动化程度高、力学强度高、导电性能好、节能效果显著、焊接成本低等突出特点,具有良好的应用前景和... 通过对阳极导杆铝-钢直焊成套装置的运行情况、功能特点、铝-钢直焊接头的力学性能和使用效果等进行分析,得出铝-钢直焊成套装置具有自动化程度高、力学强度高、导电性能好、节能效果显著、焊接成本低等突出特点,具有良好的应用前景和推广价值。 展开更多
关键词 - 爆炸块过渡 力学性能 压降
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镀层对铝/钢异种金属激光焊接质量的影响 被引量:6
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作者 李镇 石岩 +1 位作者 刘佳 李言飞 《激光杂志》 北大核心 2016年第8期18-22,共5页
以5052铝合金和预置镀层的ST07Z钢板为研究对象,采用Nd:YAG激光器进行激光填粉熔-钎焊试验,利用光学显微镜、扫描电镜和拉伸试验机等对熔-钎焊接头的微观组织和力学性能进行研究。结果表明:镀层能够有效抑制铝铁间的扩散反应,铝/镀镍钢... 以5052铝合金和预置镀层的ST07Z钢板为研究对象,采用Nd:YAG激光器进行激光填粉熔-钎焊试验,利用光学显微镜、扫描电镜和拉伸试验机等对熔-钎焊接头的微观组织和力学性能进行研究。结果表明:镀层能够有效抑制铝铁间的扩散反应,铝/镀镍钢、铝/镀铜钢及铝/镀锌钢三种接头界面结合区的组织主要为Al-Fe金属间化合物及一定数量的镀层元素与铝形成的二元化合物。另外,三种不同镀层的钎焊接头中铝/镀锌钢抗拉剪强度最大,达到140.7N/mm。 展开更多
关键词 / 激光 显微组织 金属间化合物 力学性能
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铝电解槽阳极导杆两种连接方式的比较与分析
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作者 朱剑 《冶金设备管理与维修》 2023年第3期5-7,10,共4页
介绍了铝电解槽阳极导杆两种连接方式。对于传统爆炸块焊接方法和铝钢自动焊方法进行了工艺对比、所需费用对比、焊接质量对比和焊接效率对比。经过综合比较后,表明铝钢自动焊方法优于传统爆炸块焊接方法。
关键词 阳极导杆 修复 铝钢焊 机械臂
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镀镍层对铝/钢异种金属激光焊接质量的影响 被引量:4
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作者 李镇 石岩 +4 位作者 刘佳 李言飞 李云峰 倪聪 闻龙 《应用激光》 CSCD 北大核心 2016年第3期316-320,共5页
以5052铝合金和预置镀镍层的ST07Z钢板为研究对象,采用Nd:YAG激光器进行激光填粉熔-钎焊试验,并使用光学显微镜、扫描电镜和拉伸试验机等试验设备对典型接头的微观组织及力学性能进行研究。结果表明,镀镍层能显著提高铝液在钢表面的润... 以5052铝合金和预置镀镍层的ST07Z钢板为研究对象,采用Nd:YAG激光器进行激光填粉熔-钎焊试验,并使用光学显微镜、扫描电镜和拉伸试验机等试验设备对典型接头的微观组织及力学性能进行研究。结果表明,镀镍层能显著提高铝液在钢表面的润湿铺展,有效抑制铝铁间扩散反应。接头界面处组织主要由Fe2Al5、FeAl3及少量Al-Ni化合物组成。优化工艺参数的典型试件均在界面处发生断裂,断裂形式为典型的解理断裂,接头最大抗拉剪强度达到165N/mm。 展开更多
关键词 / 激光 金属间化合物 力学性能
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铜镀层对铝/钢异种金属激光填粉焊接质量的影响 被引量:3
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作者 李镇 石岩 +4 位作者 刘佳 李言飞 李云峰 倪聪 闻龙 《应用激光》 CSCD 北大核心 2016年第2期176-180,共5页
采用Nd:YAG激光器对5052铝合金和镀层处理的ST07Z镀铜钢进行激光填缝焊接实验研究。研究了镀层对铝/钢搭接接头界面金属间化合物和强度的影响。采用光学显微镜、扫描电镜和拉伸试验机对熔-钎焊接头的显微结构、金属间化合物成分和断口... 采用Nd:YAG激光器对5052铝合金和镀层处理的ST07Z镀铜钢进行激光填缝焊接实验研究。研究了镀层对铝/钢搭接接头界面金属间化合物和强度的影响。采用光学显微镜、扫描电镜和拉伸试验机对熔-钎焊接头的显微结构、金属间化合物成分和断口进行了观察测试。结果表明,对ST07Z钢做镀层处理,显著提高焊接过程中铝液在钢表面的润湿铺展,抑制铝铁原子的相互扩散,减少Al-Fe金属间化合物的形成。接头界面处生成的金属间化合物主要有Fe2Al5、FeAl2和FeAl三种。采用镀层处理可有效提高焊接接头强度,接头最大抗拉剪强度可达163N/mm。 展开更多
关键词 / 激光 显微组织 金属间化合物 力学性能
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Microstructure and mechanical properties of pulsed laser welded Al/steel dissimilar joint 被引量:13
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作者 杨瑾 李玉龙 张华 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2016年第4期994-1002,共9页
Pulsed laser welding was used in joining pure aluminum to stainless steel in a lap joint configuration. It is found that the mechanical properties of the laser joints were closely correlated with the bead geometry, i.... Pulsed laser welding was used in joining pure aluminum to stainless steel in a lap joint configuration. It is found that the mechanical properties of the laser joints were closely correlated with the bead geometry, i.e., penetration depth. In order to study the correlation, two typical laser welds with different penetration depths were analyzed. In high penetration depth (354 μm) joint, Al-rich Fe?Al IMCs with microcracks were formed at the Al/fusion zone (FZ) interface. The joint strength was found to be (27.2±1.7) N/mm and three failure modes were observed near the Al/FZ interface. In low penetration depth (108 μm) joint, Fe-rich Fe?Al IMCs without any defect were formed at the Al/FZ interface. The joint strength was found to be (46.2±1.9) N/mm and one failure mode was observed across the FZ. 展开更多
关键词 pulsed laser welding STEEL ALUMINUM MICROSTRUCTURE mechanical property
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Contact reactive brazing of Al alloy/Cu/stainless steel joints and dissolution behaviors of interlayer 被引量:10
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作者 吴铭方 司乃潮 陈健 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第5期1035-1039,共5页
Contact reactive brazing of 6063 Al alloy and 1Cr18Ni9Ti stainless steel was researched by using Cu as interlayer. Effect of brazing time on microstructure of the joints, as well as the dissolution behaviors of Cu int... Contact reactive brazing of 6063 Al alloy and 1Cr18Ni9Ti stainless steel was researched by using Cu as interlayer. Effect of brazing time on microstructure of the joints, as well as the dissolution behaviors of Cu interlayer was analyzed. The results show that the product of reaction zone near 1Cr18Ni9Ti is composed of Fe2Al5, FeAl3 intermetallic compound (IMC), and Cu-Al IMC; the near by area is composed of Al-Cu eutectic structure with Al (Cu) solid solution. With increasing the brazing time, the thickness of IMC layer at the interface increases, while the width of Al-Cu eutectic structure with Al(Cu) solution decreases. Calculation shows the dissolution rate of Cu interlayer is very fast. The complete dissolution time is about 0.47 s for Cu interlayer with 10 μm in thickness used in this study. 展开更多
关键词 Al alloy stainless steel contact reactive brazing MICROSTRUCTURE dissolution of interlayer
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Effect of Tool Shoulder and Pin Probe Profiles on Friction Stirred Aluminum Welds-a Comparative Study 被引量:5
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作者 H.K.Mohanty M.M.Mahapatra +2 位作者 P.Kumar P.Biswas N.R.Mandal 《Journal of Marine Science and Application》 2012年第2期200-207,共8页
In marine application,marine grade steel is generally used for haul and superstructures.However,aluminum has also become a good choice due to its lightweight qualities,while rusting of aluminum is minimal compared to ... In marine application,marine grade steel is generally used for haul and superstructures.However,aluminum has also become a good choice due to its lightweight qualities,while rusting of aluminum is minimal compared to steel.In this paper a study on friction stir welding of aluminum alloys was presented.The present investigation deals with the effects of different friction stir welding tool geometries on mechanical strength and the microstructure properties of aluminum alloy welds.Three distinct tool geometries with different types of shoulder and tool probe profiles were used in the investigation according to the design matrix.The effects of each tool shoulder and probe geometry on the weld was evaluated.It was also observed that the friction stir weld tool geometry has a significant effect on the weldment reinforcement,microhardness,and weld strength. 展开更多
关键词 friction stir welding tool geometries weld strength weld cross section area
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Residual stress and welding distortion of Al/steel butt joint by arc-assisted laser welding-brazing 被引量:11
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作者 Chun-ling LI Ding FAN +1 位作者 Xiao-quan YU Jian-kang HUANG 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2019年第4期692-700,共9页
The thermo-elastic.plastic finite element method(FEM)is used to simulate the thermo-mechanical behavior of Al/steel tungsten inert gas(TIG)arc-assisted laser welding-brazing(A-LWB)butt joint.The influence of material ... The thermo-elastic.plastic finite element method(FEM)is used to simulate the thermo-mechanical behavior of Al/steel tungsten inert gas(TIG)arc-assisted laser welding-brazing(A-LWB)butt joint.The influence of material nonlinearity,geometrical nonlinearity and work hardening on the welding process is studied,and the differences in the welding temperature field,residual stress and welding distortion by A-LWB and by single laser welding-brazing(SLWB)are analyzed.The results show that the thermal cycle,residual stress distribution and welding distortion by the numerical simulation are in good agreement with the measured data by experiments,which verifies the effectiveness of FEM.Compared with the SLWB,A-LWB can make the high-temperature distribution zone of weld in width direction wider,decrease the transverse tensile stress in the weld and reduce the distribution range of longitudinal tensile stress.And the welding deformation also decreases to some extent. 展开更多
关键词 arc-assisted laser welding-brazing(A-LWB) Al/steel finite element method(FEM) temperature field residual stress welding distortion
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Effect of process parameters on microstructure and properties of laser welded joints of aluminum/steel with Ni/Cu interlayer 被引量:8
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作者 Xue-long CAO Gang WANG +2 位作者 Chang XING Cai-wang TAN Jun-jun JIANG 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2021年第8期2277-2286,共10页
The effects of laser parameters and interlayer material on the microstructure and properties of the welded joint between 6061 aluminum alloy and stainless steel were studied.The results show that the density and micro... The effects of laser parameters and interlayer material on the microstructure and properties of the welded joint between 6061 aluminum alloy and stainless steel were studied.The results show that the density and microstructure of the welded joint can be optimized by changing the laser power with 0.05 mm Cu foil and 0.1 mm Ni foil as interlayer.A large number of new Cu-Al binary phases were found near the aluminum alloy,which effectively inhibited the formation of the binary brittle phase of Fe-Al.The maximum shear force of 1350.96 N was obtained with laser power of 2200 W.The shear force of the welded joint increased to 1754.73 N when the thickness of the Cu foil thickness changed to 0.02 mm. 展开更多
关键词 laser welding aluminum/steel dissimilar metals INTERLAYER microstructure mechanical properties
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Effect of Mg and Si on intermetallic formation and fracture behavior of pure aluminum-galvanized carbon-steel joints made by weld-brazing 被引量:1
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作者 A.ALIKHANI R.BEYGI +2 位作者 M.ZAREZADEH MEHRIZI F.NEMATZADEH I.GALVÃO 《Journal of Central South University》 SCIE EI CAS CSCD 2021年第11期3626-3638,共13页
Commercial pure aluminum and galvanized carbon steel were lap-welded using the weld-brazing(WB)technique.Three types of aluminum filler materials(4043,4047,and 5356) were used for WB.The joint strength and intermetall... Commercial pure aluminum and galvanized carbon steel were lap-welded using the weld-brazing(WB)technique.Three types of aluminum filler materials(4043,4047,and 5356) were used for WB.The joint strength and intermetallic compounds at the interface of three series of samples were analyzed and compared.Depending on the Si content,a variety of ternary Al-Fe-Si intermetallic compounds(IMCs) such as Fe_(4)(Al,Si)_(13),Fe_(2) Al_(8) Si(τ_(5)),and Fe_(2) Al_(9) Si_(2)(τ_(6)) were formed at the interface.Mg element in 5356 filler material cannot contribute to the formation of Al-Fe intermetallic phases due to the positive mixing enthalpy of Mg-Fe.The presence of Mg enhances the hot cracking phenomenon near the Al-Fe intermetallic compound at the interface.Zn coating does not participate in intermetallic formation due to its evaporation during WB.It was concluded that the softening of the base metal in the heat-affected zone rather than the IMCs determines the joint efficiency. 展开更多
关键词 weld-brazing Al-steel ternary Al-Fe intermetallic joint efficiency hot cracking
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Microstructure and mechanical properties of Al-Fe meshing bonding interfaces manufactured by explosive welding 被引量:12
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作者 Ming YANG Hong-hao MA +2 位作者 Zhao-wu SHEN Dai-guo CHEN Yong-xin DENG 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2019年第4期680-691,共12页
In order to improve the mechanical properties of Al.Fe transition joints manufactured by explosive welding,meshing bonding interfaces were obtained by prefabricating dovetail grooves in base plates.The microstructure ... In order to improve the mechanical properties of Al.Fe transition joints manufactured by explosive welding,meshing bonding interfaces were obtained by prefabricating dovetail grooves in base plates.The microstructure and mechanical properties of the meshing interfaces were systematically investigated.The microstructure observation showed that metallurgical bonding without pores was created in the form of direct bonding and melting zone bonding at the interface.Fractography on tensile specimens showed cleavage fracture on the steel side and ductile fracture on the aluminum side near the interfaces.The tensile shear test results indicated that the shear strength of the meshing interface 0°and 90°was increased by 11%and 14%,respectively,when being compared to that of the ordinary Al.Fe transition joints.The values of microhardness decreased as the distance from the interface increased.After three-point bending,cracks were observed at the bonding interface for some specimens due to the existence of brittle Fe.Al compounds. 展开更多
关键词 explosive welding meshing interface ALUMINUM stainless steel
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Prediction and optimization of friction welding parameters for joining aluminium alloy and stainless steel 被引量:9
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作者 R.PAVENTHAN P.R.LAKSHMINARAYANAN V.BALASUBRAMANIAN 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第7期1480-1485,共6页
Friction welding (FW) is a process of solid state joining which is used extensively in recent years due to its advantages such as low heat input,production efficiency,ease of manufacture and environment friendliness... Friction welding (FW) is a process of solid state joining which is used extensively in recent years due to its advantages such as low heat input,production efficiency,ease of manufacture and environment friendliness.Friction welding can be used to join different types of ferrous metals and non-ferrous metals that cannot be welded by traditional fusion welding processes.The process parameters such as friction pressure,forging force,friction time and forging time play the major roles in determining the strength of the joints.In this investigation an attempt was made to develop an empirical relationship to predict the tensile strength of friction welded AA 6082 aluminium alloy and AISI 304 austenitic stainless steels joints,incorporating above said parameters.Response surface methodology (RSM) was applied to optimizing the friction welding process parameters to attain the maximum tensile strength of the joint. 展开更多
关键词 friction welding aluminium alloy stainless steel response surface methodology OPTIMIZATION
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Improving pulsed laser weldability of duplex stainless steel to 5456 aluminum alloy via friction stir process reinforcing of aluminum by BNi-2 brazing alloy 被引量:6
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作者 Hossein ESMAILY Ali HABIBOLAHZADEH Mohammad TAJALLY 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2019年第7期1401-1412,共12页
Effects of laser pulse distance and reinforcing of 5456 aluminum alloy were investigated on laser weldability of Al alloy to duplex stainless steel (DSS) plates. The aluminum alloy plate was reinforced by nickel-base ... Effects of laser pulse distance and reinforcing of 5456 aluminum alloy were investigated on laser weldability of Al alloy to duplex stainless steel (DSS) plates. The aluminum alloy plate was reinforced by nickel-base BNi-2 brazing powder via friction stir processing. The DSS plates were laser welded to the Al5456/BNi-2 composite and also to the Al5456 alloy plates. The welding zones were studied by scanning electron microscopy, X-ray diffractometry, micro-hardness and shear tests. The weld interface layer became thinner from 23 to 5 μm, as the laser pulse distance was increased from 0.2 to 0.5 mm. Reinforcing of the Al alloy modified the phases at interface layer from Al-Fe intermetallic compounds (IMCs) in the DSS/Al alloy weld, to Al-Ni-Fe IMCs in the DSS/Al composite one, since more nickel was injected in the weld pool by BNi-2 reinforcements. This led to a remarkable reduction in crack tendency of the welds and decreased the hardness of the interface layer from ~950 HV to ~600 HV. Shear strengths of the DSS/Al composite welds were significantly increased by ~150%, from 46 to 114 MPa, in comparison to the DSS/Al alloy ones. 展开更多
关键词 duplex stainless steel (DSS) Al5456 aluminum alloy BNi-2 brazing alloy friction stir processing pulsed laser welding
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TIG welding-brazing joint of aluminum to stainless steel with hot wire 被引量:1
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作者 何欢 林三宝 +2 位作者 陈哲 范成磊 杨春利 《China Welding》 EI CAS 2013年第3期25-30,共6页
TIG welding-brazing process with high frequency induction hot wire technology was presented to create joints between 5A06 aluminum alloy and SUS32! stainless steel using ER1100 filler wire with different temperature. ... TIG welding-brazing process with high frequency induction hot wire technology was presented to create joints between 5A06 aluminum alloy and SUS32! stainless steel using ER1100 filler wire with different temperature. The joints were evaluated by mechanical test and microstructural analyses. The welding procedure using hot fiUer wire (400 ℃ ) significantly increases strength stability by 71% and average value of tensile strength by 30. 8 % of the joints, compared with cold wire. The research of microstructures in interfaces and welded seams reveals that using 400 ℃ hot filler wire can decrease the thickness of intermetallic compounds ( IMCs ) from 6 to 3.5 txm approximately, which is the main reason of mechanical property improvement. 展开更多
关键词 aluminum alloy stainless steel WELDING-BRAZING hot wire high frequency induction INTERMETALLIC
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