Besides, the welding stress and wicked water accelerate the crack growth.
同时，焊接应力的存在和水质不良加速了裂纹的扩展。
These methods can be helpful to reduce or control the welding stress in the structure of port crane.
这些工艺、方法的正确运用有助于控制港口起重机的主要结构件的焊接应力。
Controlling on grid welding deformation and welding stress are the key problems for assuring grid quality.
控制网架的焊接变形与焊接应力是保证网架质量的关键之一。
Welding stress and concaving deformation of man-hole of steel vessel influence directly welding quality and life of using.
钢制容器人孔的焊接应力及塌陷变形，直接影响容器的焊接质量和使用寿命。
The macro and micro analysis of fracture indicates that it produces fracture because it doesn′t avoid welding stress in time.
根据断口的宏、微观形貌，认为油管焊接后未及时消除焊接应力，产生了淬硬裂纹；
Effects of relieving residual welding stress with different heat treatment methods were studied by the method of drilling little holes.
采用小孔法测定了不同热处理方法消除焊接残余应力的效果。
In this paper, the problems on compressive plastic deformation in the weld and the principle of welding stress and strain described by d.
讨论了焊缝是否存在压缩塑性变形问题和拉达伊d应力应变原理图存在的问题。
The notch welding stress and the collapse-deformation of steel container directly affects the welding quality and service life of the container.
钢制容器人孔的焊接应力及塌陷变形，直接影响容器的焊接质量和使用寿命。
The application of penstock blasting method for relieving the residual welding stress in TGP might provide reference for other similar projects.
三峡工程引水压力钢管应用爆炸方法消除焊缝残余应力，对其它类似工程可起借鉴作用。
A coupling calculation method for welding stress was developed by ABAQUS code. The residual stress for welded joint of P91 steel was simulated by the method above.
本文基于大型有限元软件ABAQUS，开发了一个顺次耦合的焊接应力计算程序，对P 91钢焊接接头的残余应力场进行了模拟。
For welding the extra thick plate of low alloy high strength steel, due to the influence of welding stress, it relatively difficulty for controlling the defect and deformation.
低合金高强钢特厚板的焊接，由于焊接应力的影响，在控制缺陷和变形方面都比较困难。
Comprehensive analysis shows that the welding rod material has poor welding performance, if the cooling rate after welding is too rapid, then the welding stress can be too large.
综合分析表明，拉杆材料焊接性能差，焊后冷却速度过快，以致焊接应力过大。
Since the welding stress and welding deformation can be reduced when welding with A-TIG welding, and the production efficiency will remarkably be enhanced for welding thick plate.
由于焊接热输入可大大降低，因此会改善焊接接头组织和减少应力变形。厚板焊接时可大幅度提高生产率。
The simulation result shows that maximal welding stress appears along the adjacent area between blades and bands or blades and crown. The result can explain why fatigue crack on...
结果表明，焊后应力的峰值出现在叶片与上冠或叶片与下环接触面的附近的叶片上。
The results indicate that the brittle intermetallic compound in weld is the main reason why the weldability of the plate is bad, which leads to cracks under the effect of welding stress.
通过分析TA2和Q 235b的焊接性，论述了钛与钢熔焊焊缝脆裂的机理，指出钛钢复合板焊接性能差的主要原因在于焊缝中产生了脆性的金属间化合物，从而导致焊缝在焊接应力的作用下发生开裂。
By increasing the weld heat input, the distribution of martensite becomes more dispersive and glomerate due to the molten pool stiring, the welding stress and the burning loss of alloy elements.
随着焊接热输入量的增加，由于熔池搅拌、焊接应力、合金元素烧损等原因，马氏体的分布更加散乱和密集；
Crack in neck of hollow shaft is a very serious malfunction, main cause of the crack include: foundry defect, centralized stress, quality problems of welding and heat treatment.
中空轴轴颈裂纹是水泥磨的严重故障。中空轴轴颈裂纹产生的原因主要有：铸造缺陷，应力集中，焊接和热处理质量问题等。
But this method is used to determine welding residual stresses in many cases where the stress peaks are often near the material's yield strength.
但是在许多情况下，钻孔法是用于测量焊接残余应力，而该应力峰值往往接近材料的屈服极限。
A set of experimental optical lines is designed to calculate welding residual stress.
设计了一套全息干涉的试验光路，以计算焊接残余应力。
On the basis of model selection from the pieces tested and according to elastic mechanics, the relation between minute displacement and welding residual stress is deduced.
对所测试件选取适当的模型，应用弹性力学理论，推导出微小位移与焊接残余应力的关系式。
With the welding spot fatigue lifetime pre-estimation method, by combination of the finite element analysis and stress calculation, the welding spot fatigue damage under actual load can be calculated.
采用焊点疲劳寿命预估方法，通过有限元分析并结合应力计算，即可计算出实际载荷工况下的焊点疲劳损伤。
Evolvement process of longitudinal stress and residual stress field after welding are obtained.
得到了焊接过程中纵向应力的演变规律与焊后应力场的分布情况。
To remove internal stress such as those produced by drawing, bending, or welding.
去除内应力，如用冲压、完全或焊接成型的工件。
Evolvement of longitudinal stress and residual stress field after welding are obtained.
得到了焊接过程中纵向应力的演变规律与焊后应力场的分布情况。
The paper discusses over the influence exerted by welding residual stress on the static strength, brittle fracture and stress-corrosion cracking of metal structure.
本文介绍了焊接残余应力对金属结构的静强度、脆性断裂以及应力腐蚀开裂的影响。
The prediction and controlling of welding distortion and residual stress is still a very important project in the industry.
焊接变形和残余应力的预测和控制至今仍然是工业生产中需要解决的重要课题。
It can be predicted that the cylindrical shell structure is better than the plane structure in reducing welding residual stress through local loading.
因此可以预见，对于应用局部加载降低结构体焊接残余应力，柱壳结构要比平板结构效果更好。
There is significant closure in welded specimen due to the effect of welding residual stress.
在焊接试件中有显著的裂纹闭合现象，其原因是焊接残余应力的作用。
There is significant closure in welded specimen due to the effect of welding residual stress.
在焊接试件中有显著的裂纹闭合现象，其原因是焊接残余应力的作用。
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