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flash butt
相关语句
  闪光
     NMW-C1375FS automatic flash butt welder
     NMW—C1375FS自动闪光对焊机
短句来源
     NMW-C1375FS Automatic Flash Butt Welder
     NMW-C1375FS自动闪光对焊机
短句来源
     The Effect of Flash Butt Welding Technology Parameter on Structure and Properties for W6Mo5Cr4V2 and 45 Steel
     W6Mo5Cr4V2与45钢闪光对焊工艺参数对接头组织及性能的影响
短句来源
     A Study on Technological Experiment of the Al--Mg--Si Alloy Bicycle Wheel with Flash Butt Welding
     Al-Mg-Si合金车圈闪光对焊工艺试验研究
短句来源
     Reconstruction of Control System and Research on Welding Process of κ190Πκ Rail AC Flash Butt Weiding Machine
     κ190Πκ钢轨交流闪光焊机控制系统改造及焊接工艺研究
短句来源
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  “flash butt”译为未确定词的双语例句
     Three-Phase D.C.Flash Butt Welder controlling by PLC for Welding rims
     用PLC控制的三相次级整流钢圈对焊机
短句来源
     Simulation of DC flash butt welding by coupling with electricity, heat, and mechanics will be instrumental in designing and drawing out technical specification.
     同时,对直流电阻对焊过程进行电、热、力耦合模拟也将会对焊接过程的认识、合理设计控制措施和制定合理的工艺规范有着重要意义。
短句来源
     Through analysis and rolling tests for different weld seams by Miebach welder (strip flash butt welder) in cold rolling mill plant of Baosteel, the main reasons of the strip breaking at weld seam were derived: the deviation of level reference surface for two strip ends at weld seam, excessive weld seam reinforcement and the serious plastic deformation of weld seams.
     通过对冷轧厂来巴赫焊机的焊缝分析,并对不同系列的焊缝进行轧制试验,得出冷轧厂米巴赫焊机焊缝断带的主要原因为:焊缝处两带钢水平基准面偏移,焊缝加强高过大及焊缝加强高存在严重塑性变形。
短句来源
     If need be , it can print out electric current-bit wide curve about flash butt welding course.
     如果需要还能打印出过程的焊接电流与位移的变化曲线。
短句来源
  相似匹配句对
     Flash
     闪光
短句来源
     Development of Multifunctional Flash Butt Welding Machine
     多功能闪光焊机研制
短句来源
     Selfconsistent Optmal Parameters of Flash Butt Welding
     闪光焊参数最佳条件的自动建立
短句来源
     Flash memory
     Flash技术
短句来源
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  flash butt
Therefore, flash butt welding is appropriate for joining the 400 MPa ultra-fine grain reinforced steel bars.
      
The joint of flash butt welding has a superior mechanical property.
      
The weldability of 400 MPa ultra-fine reinforced steel bar of flash butt welding is investigated by using the micro metallographical examination and macro-mechanical-property tests.
      
Study on the flash butt welding of 400 MPa ultra-fine grain steel
      
SCC has also been detected in spiral, seamless and flash butt type longseams.
      
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In this paper the main problems concerning the quality of flash butt welding ofboiler tubes from a technological point of view are discussed.It is emphasized thatthe prevailing explanation for the mechanism of forming low plasticity structureslike the“grey fish eyes”remains to be made perfect with further investigations.The“grey fish eyes”defects could be best put under control by technologicalmeans.The practical methods of improving welding technology are stated;and theselection of welding parameters...

In this paper the main problems concerning the quality of flash butt welding ofboiler tubes from a technological point of view are discussed.It is emphasized thatthe prevailing explanation for the mechanism of forming low plasticity structureslike the“grey fish eyes”remains to be made perfect with further investigations.The“grey fish eyes”defects could be best put under control by technologicalmeans.The practical methods of improving welding technology are stated;and theselection of welding parameters analyzed.The paper also introduces the principle ofthe technique of preheat energy auto-control.In flash welding with preheating,the“heat level”of joints can be monitored by varying the degree of preheating,thusmaking the regulating process of welding parameters much more simplified.The said improvements have been put into practice and proven to be reliable andsatisfactory in production.

本文对闪光焊工艺中存在的“灰斑”等低塑性组织形成机理的解释提出了新看法.认为“灰斑”可以由焊接工艺参数的调整来进行控制,并对改进管子闪光焊工艺的具体措施,比如工艺参数的选择进行了分析.介绍了预热能量自动控制技术的应用。大大简化了焊接工艺参数的调整过程.研究结果已在实际批量生产中得到了验证。

Lamellar tearing is one of the main defects in flash-butt welded joint of Al—Zn—Mgallog type 7003.In this paper,based on the metallographic and fractographicanalysis of the joint,the nature and morphology of the defect have been presented,including the cause and the rule governing its occurence.Increasing the upset speed,controlling the upset time before cutting off of the welding current and adopting theconstricting mold have been proved that it is an effective measures to prevent lamellartearing.The...

Lamellar tearing is one of the main defects in flash-butt welded joint of Al—Zn—Mgallog type 7003.In this paper,based on the metallographic and fractographicanalysis of the joint,the nature and morphology of the defect have been presented,including the cause and the rule governing its occurence.Increasing the upset speed,controlling the upset time before cutting off of the welding current and adopting theconstricting mold have been proved that it is an effective measures to prevent lamellartearing.The mechanical properties of the joints free from lamellar tearing are comparableto that of the base metal.

层状裂纹是7003铝合金挤压材料对焊接头中最主要的缺陷之一。本文通过金相和断口观察,指出层状裂纹的性质和形貌特征,同时较深入地讨论了其产生与原材料状态、对焊温度场及应力场形态及变化规律的相互关系。提出通过提高顶锻速度、使用对口强迫成形模式完全可以消除层状裂纹。控制有电顶锻时间,没有层状裂纹的7003铝合金闪光对焊优质接头接近于母材塑性。

One of the essential characteristics of flash butt welding is the discontinuity of theflash heating process caused by the contact bridges.If this characteristic is adopted asthe principle of the platen movement control,the stability and the heating efficiency offlashing proceess Can be increased drastically.A closed loop electro-hydraulic servo con-trol system has been designed and applied to a conventional general purpose weldingmachine.With this system the control of platen motion according to the instantaneousprocess...

One of the essential characteristics of flash butt welding is the discontinuity of theflash heating process caused by the contact bridges.If this characteristic is adopted asthe principle of the platen movement control,the stability and the heating efficiency offlashing proceess Can be increased drastically.A closed loop electro-hydraulic servo con-trol system has been designed and applied to a conventional general purpose weldingmachine.With this system the control of platen motion according to the instantaneousprocess of the individual contact bridges can be achieved.By means of instantaneousregulation of the platen movement the macro velocity of the moving platen can be self-adjusted to suit the changes of the melting speed of the workpieces and the requiredspecific power can be reduced down to only one tenth of that with conventionalpredetermined platen movement control.

闪光对焊加热过程的特点与电阻对焊相比较是不连续的。闪光焊机的动板运动如能适应这一不连续性,即应与触点的瞬时过程相一致,闪光过程的稳定性和加热效率就会进一步提高。本文对闪光加热的这种不连续性进行了分析对比,提出了以触点实际过程为基础的瞬时调节方案。根据这一方案设计了相应的闭环电液伺服控制系统。这一系统的试验结果表明,闪光过程的稳定性大为提高,实现了动板宏观送进自动适应工件闪光烧化速度的增长,焊机不再需要预先给定运动方式和送进曲线。由于加热效率大幅度提高,闪光比功率可降低至常规送进法所需比功率的十分之一,对节能有重要意义,已经用这一方法为工厂生产了成批刀具,使用情况良好。

 
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