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接头强化
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  strengthening joint
     The similarities and differences in main characteristics between transient liquid phase (TLP) bonding and brazing process are compared in the following aspects: bonding process,solidification,oxide disruption,interlayer and filler metal,constituent parts of joint,formation and disappearing of brittle phase,effects of pressure,mechanisms of strengthening joint.
     从焊接进程、凝固、氧化物的破碎、中间层与钎料的区别、接头组成、脆性相的形成与消除、压力的作用、接头强化机理等方面总结分析了瞬间液相扩散焊与钎焊的区别。
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  “接头强化”译为未确定词的双语例句
     However, the strength of parent material is reduced after heat treatment. Parent material strength is decreased to 31% of original strength after heat treatment at 520℃ for 1h+176℃ for 10 h. As ageing temperature and time increasing, the damaged degree for parent material rises.
     但在接头强化的同时,母材却受到了一定程度的弱化,试件经520℃固溶1h+176℃时效10h后,母材处的强度弱化到初始强度的31%,随着时效温度的提高和时效时间的延长,试件母材部位的弱化程度随之增大。
短句来源
  相似匹配句对
     On Constrained Strength of YG-8 Hardmetal Brazed Joint
     硬质合金钎焊接头的拘束强化
短句来源
     Strength of vacuum brazing joint of dispersive strengthening Cu base matrix composite
     弥散强化铜基复合材料钎焊接头强度
短句来源
     insist nicety;
     强化准确;
短句来源
     On Strengthening of Teaching
     论教学强化
短句来源
     Revealing the Secret of Rivet Joint
     “铆钉接头”揭秘
短句来源
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  joint strengthening
Co-generation of knowledge and joint strengthening of the research potential are both essential.
      


In this pape, the method for improving mechanical properties of welded joints by synchronous rolling the weld(SRW)during welding has been inv estigated by use of the developed HNJ-1 type welding and synchronous roll ing machine.Experimental results show that the strengthening effect by synchronous rolling the weld during welding is better than that of room- temperature rolling after welding,and the ductility of welded joints can also be improved.The method combines strengthening with welding of joints, possesses...

In this pape, the method for improving mechanical properties of welded joints by synchronous rolling the weld(SRW)during welding has been inv estigated by use of the developed HNJ-1 type welding and synchronous roll ing machine.Experimental results show that the strengthening effect by synchronous rolling the weld during welding is better than that of room- temperature rolling after welding,and the ductility of welded joints can also be improved.The method combines strengthening with welding of joints, possesses better strengthening effect while requiring smaller rolling force, and is thus an advanced and effective strengthening technology of Welded joints.

利用所研制的 HNJ—1型焊接同步碾压机探讨了随焊同步碾压焊缝改善焊接接头机械性能的新工艺。试验结果表明,随焊同步碾压相对于焊后室温碾压具有更好的强化效果,并对改善接头塑性也有一定的作用。随焊同步碾压焊缝具有破碎枝晶、细化晶粒的作用,改善了焊缝显微组织。该法实现了焊接和强化一次完成,简化了焊接接头强化工艺。

The similarities and differences in main characteristics between transient liquid phase (TLP) bonding and brazing process are compared in the following aspects: bonding process,solidification,oxide disruption,interlayer and filler metal,constituent parts of joint,formation and disappearing of brittle phase,effects of pressure,mechanisms of strengthening joint.The following key points are pointed out especially.(1)Careful selection of interlayer is a precondition to get a TLP bonded joint or a brazed joint.(2)The...

The similarities and differences in main characteristics between transient liquid phase (TLP) bonding and brazing process are compared in the following aspects: bonding process,solidification,oxide disruption,interlayer and filler metal,constituent parts of joint,formation and disappearing of brittle phase,effects of pressure,mechanisms of strengthening joint.The following key points are pointed out especially.(1)Careful selection of interlayer is a precondition to get a TLP bonded joint or a brazed joint.(2)The wettablity of filler metal on base metal is the key point in brazing process,because it is the precondition and main approach to make joint strong.(3)A sufficient diffusion of melting point depressant (MPD) elements into base metal and a suitable change of composition of interlayer due to loss of MPD elements by diffusion are the vitals to get a successful TLP bonding,because the essential reason for liquid zone widening,oxide disruption,isothermal solidification and homogenization of bond region is the diffusion of MPD elements.

从焊接进程、凝固、氧化物的破碎、中间层与钎料的区别、接头组成、脆性相的形成与消除、压力的作用、接头强化机理等方面总结分析了瞬间液相扩散焊与钎焊的区别。强调指出了下述关键点 :(1)中间层的选取是获得两种不同焊接方法接头的首要前提 ;(2 )在钎焊中侧重点是润湿性 ,它是保证接头获得一定强度的首要前提与主要手段 ;(3 )在瞬间液相扩散焊过程中 ,除了润湿性之外 ,更为关注的是降熔元素的扩散。中间层中降熔元素向母材的持续扩散是TLP接合中液态区增宽、破碎氧化膜、等温凝固、均匀化现象的本质原因 ;降熔元素向母材的充分扩散及由此而出现的中间层成分的合理改变是TLP焊接成败的命脉

Using experimental mechanical method of moiré analysis,strain field distributions of LY12CZ aluminum alloy welded joints under different conditions were investigated.The results show that moiré stripes of conventional welded joint just before fracture are not only few and scattered but also uneven,and the stress mainly concentrates on the poor position welded toes during the tensioning process with the relatively poor mechanical properties of welded joints.When the method of welding with trailing peening is...

Using experimental mechanical method of moiré analysis,strain field distributions of LY12CZ aluminum alloy welded joints under different conditions were investigated.The results show that moiré stripes of conventional welded joint just before fracture are not only few and scattered but also uneven,and the stress mainly concentrates on the poor position welded toes during the tensioning process with the relatively poor mechanical properties of welded joints.When the method of welding with trailing peening is adopted,moiré stripes of welded joint just before fracture are relatively thick and even due to the strengthening welded toes during the welding process,and fracture position transfers from the welded toes to weld,at the same time the mechanical properties of welded joints are improved greatly than conventional welding which can show that the technology of trailing peening is effective to strengthen welded joints of high strength aluminum alloy.

采用云纹分析的试验力学方法 ,研究了不同情况下LY12CZ高强铝合金焊接接头应变场的分布特点。研究结果表明 ,断裂前夕 ,常规焊接头的云纹条纹稀疏且不均匀 ,拉伸过程中应力集中在薄弱环节焊趾部位 ,焊接接头的力学性能指标较差 ;采用随焊锤击工艺 ,由于在焊接过程中同步锤击强化了焊趾部位 ,断裂前夕焊接接头的云纹条纹分布比较密集均匀 ,断裂部位由焊趾转移到焊缝 ,焊接接头的力学性能指标较常规焊有了较大提高 ,这充分说明随焊锤击技术对于实现高强铝合金焊接接头的强化是行之有效的。

 
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