weld crack

Combining experimental and numerical simulation methods, the effects of weld-joint strength matching on the crack tip opening displacement ( CTOD) of three point bending specimen are investigated.

利用试验研究和数值分析方法，对模拟焊接接头三点弯曲试样不同强度组配对裂纹尖端张开位移（CTOD）的影响进行了研究。

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nominal stress at a failure location, e. g. , weld crack into base plate

失效位置的名义应力，例如，侵入母材的焊接裂纹处？

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The temperature regulator tube plate and steel tube beam work in the frequent change of temperature for a long time, their high alternating pressure make the tube plate's weld crack and tube beam leak.

减温器管板和钢管束长期工作在频繁变化的温度中，交变压力很大，造成管板焊缝处经常开裂，管束泄漏。

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An explosion bulge test a welded plate a crack starter and sin 1 ulated weld specimen was conducted.

进行了无裂纹源焊道板材和模拟焊缝试样的爆炸试验.

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The influences of nickel-based alloys spraying layer on the weld crack sensitivity were studied through simulating actual welding experiment in this paper.

通过模拟实际焊接试验，研究了镍基合金喷焊层对焊接裂纹敏感性的影响。

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The effects of three kinds of combined weld on the weld crack of medium-carbon alloy steels are studied by using slit type cracking test and microscopic analysis method.

采用Y形坡口裂纹试验和显微分析方法，研究了三种不同的组合焊缝对中碳合金钢焊接裂纹的影响。

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In welding process, under arc light, how to photograph the starting and expasion process of weld solidification crack is studied in this paper.

研究了在实际焊接过程中的电弧光下如何拍摄记录焊缝凝固裂纹的启裂和扩展的过程。

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Effect of hydrogen on fatigue crack propagation in bond weld fusion zone

电解充氢对堆焊熔合区疲劳裂纹扩展行为的影响

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On the basis of the effect of the welding linear energy to the behaviours, the mechanism of the thermal crack forming and its development have also been deeply analyzed to provide the theoretical basis to take the technical measures to prevent the weld seams from thermal cracking.

同时在研究焊接线能量对这一规律影响的基础上，对热裂纹的形成和发展机理进行了深入分析，为进一步探索防止焊缝热裂纹的工艺措施提供了重要的理论依据。

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Reason Analysis and Treatment of Weld Crack in Water Drain Valve Base of Spiral Casing in Longtan Hydropower Station

龙滩电站蜗壳排水阀阀座焊接裂纹产生原因及处理

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Crack propagation conducts alternatively between the weld zone and the partially molten zone, and is not strictly to rupture at W/ F boundary surface.

裂纹扩展在焊缝区和半熔化区之间交替进行，并非严格按W／F界面破断。

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Penetrant flaw detection agent was used to detect the backing weld surface, and the number of cracks was indicated by surface crack rate.

打底焊缝正面使用渗透探伤剂探伤，用表面裂纹率表示裂纹的数量。

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Weld crack is one of the major failure modes during its normal work process.

焊缝开裂甚至断裂是刀盘工作中的主要失效形式之一。

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Study on Fatigue Crack Front Straightness in CTOD Weld Specimen of Metallic Thick Plank

金属焊缝CTOD试样疲劳裂纹前沿平直度研究

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Therefore, it is necessary to reasonably decreasing the cool rate after welding process for improving the ability of anti-fatigue crack initiation in the weld heat affected zone. 5.

因此在焊接时适当地降低热影响区的冷却速度，可以使焊接热影响区获得更优的抗疲劳裂纹萌生能力。

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Analysis and Control to Weld Crack of Spiral Welded Pipe with Small Forming Angle

小成型角螺旋焊管焊缝裂纹的分析与控制

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