焊接缺陷
- 网络weld defect;Welding defect
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对两台1000m3轻烃球罐焊接缺陷产生的原因进行分析,并提出了相应的解决措施。
A cause analysis was made of the weld defects of two 1 000m ~ 3 spherical Light hydrocarbon tanks , and some corresponding countermeasures were proposed for construction of spherical tanks .
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基于磁记忆检测技术的焊接缺陷多参数识别系统
Multi-parameter identification system of weld defects based on magnetic memory testing
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焊接缺陷的超声C扫描成像
Ultrasonic C Scanning Image of Weld Defects
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X型焊缝接头焊接缺陷处的应力集中
Stress Concentration Due to the Weld Defect of a X-Type Welded Joint
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LED芯片封装工艺中焊接缺陷研究
Research on welding fault during LED chips packaging
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对修复后的叶片进行X射线探伤,结果未发现裂纹和其它焊接缺陷。
The results showed there was no crack or any other welding defects by X-ray detection .
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X射线检测作为一种重要的无损检测方法,在管道焊接缺陷检测中发挥着重要作用,被世界各国所采用。
X-Ray detection , adopted by manycountries , plays an important role in pipeline welding flaw detection .
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基于图像处理的PCB焊接缺陷检测技术研究
Research of Defects Inspection Technology of PCB Based on Image Processing
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本文是结合课题焊接缺陷X射线实时成像检测系统的研究来进行的。
This thesis is based on " The Research on X-ray Real-time Radiography Inspection System for Welding quality " .
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该研究对提高LED封装的可靠性和提出检测LED焊接缺陷的方法具有重要意义。
The research is important for improving the reliability of LED packaging and proposing the method of detecting welding faults during LED packaging .
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另外,接头焊接缺陷引起应力集中,也加速了SCC的产生。
Furthermore , the defects cause stress concentration and may induce SCC .
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RS与FNN集成在焊接缺陷识别中应用
Research and application of integration of RS and FNN in defect recognition of welding
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焊接缺陷若在钢管的内部,则需要采用无损检测的方式,较常用的就是X射线获取。
If welding defects is in the inside of the steel pipe , the way of non-destructive testing can be taken , such as X-rays .
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Al-Mg合金MIG焊焊接缺陷及预防措施
Weld Defects of MIG Welding of Al-Mg Alloy and Their Improvements
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提出了应用支持向量机(SVM)进行射线检测焊接缺陷识别的方法。
According to the problem of defect recognition within X-ray inspection weld , the method using SVM to recognize weld defects is put forword .
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前言:本文重点介绍了如何减少VDSS钢板点焊时容易产生的两种主要焊接缺陷:鼓包和气孔;
This paper particularly introduces how to reduce two main welding defeat made in resistance spot welding for VDSS : blistering and gas expulsion holes .
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本论文以实际工程需求为背景,建立了一个X射线焊缝缺陷检测系统,利用X射线成像设备生成焊缝数字图像,用图像处理算法提取焊缝并对焊接缺陷进行检测。
In this dissertation , a weld defect detection system is developed for satisfying the actual demands , in which X-ray digital imaging device is used to generate weld digital images .
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以ANSYS为分析工具,对铁路架桥机导梁焊接缺陷进行有限元分析,为导梁进行结构安全评定提供依据。
The finite element analysis of the bridge-erecting machine ' beam under welding defect conditions is conducted with ANSYS program , which provides a basis for the structural safety assessment of beam .
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疲劳试件的扫描电镜(SEM)断口分析表明,应力集中区域的焊接缺陷是影响疲劳寿命最主要的因素。
The result of the scanning electron microscope ( SEM ) fracture analysis indicated that the defection in the stress-concentrated area is the dominant factor to affect the fatigue life of the weld-joint .
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由于RTS曲线的升温斜率可以很好的控制,这样可以减少组件的焊接缺陷和热冲击。
This also will promote better wetting , and thus the RTS should be used on difficult-to-wet alloys and parts .
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国产600MW机组高加管座焊接缺陷分析
Analysis of Socket Fillet Weld Defect in Domestic 600 MW Unit Heat Exchanger
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自动超声检测(AUT)作为一种先进的无损检测方法,在管道焊接缺陷检测中发挥着重要作用。
As an advanced method of non-destructive testing , automated ultrasonic testing plays an important role in pipeline welding defect testing .
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对18个直角角焊缝进行了基于椭球面强度模型的数值模拟,以建议的椭球面断裂模型为判据,得出了等效考虑焊接缺陷和残余应力的断裂因子CI修正系数κ值。
Eighteen fillet welds were simulated numerically based on the ellipsoidal strength model . By contrast with test results , the revised coefficient k of crack index CI was proposed for the suggested ellipsoidal fracture model considering welding defects and residual stress .
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国内外已经对FSW的工艺参数、组织结构和焊接缺陷等方面进行了研究,但是对其接头的疲劳性能研究却很少,尤其是在国内。
There are many researches have been carried out on the welding parameters , joints structure and welding defects , but the subjects on the fatigue properties of joints is seldom , especially in domestic .
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结果表明:对于噪声成分多、灰度分布范围窄、对比度差的实时X射线探伤图象,S-T变换方法能明显地改善图象质量,线灰度梯度法提取的焊接缺陷定位准确、畸变小。
Experiment results show that digital image of weld defects with high noise , narrow gray lever region , and low contrast can be remarkably improved by use of S-T technique . The weld defects collected by means of line-gray gradient can be exactly positioned with less distortion .
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在上述闸门有限元应力分析的基础上,应用概率断裂力学建立了裂纹的极限状态方程,并用JC法求出裂纹的失效概率,以此对闸门焊接缺陷的可靠度作出安全评估。
On the basis of the finite element stress analysis of the gate , the paper establishes the limit state equations of cracks by probability rupture mechanics , and obtains the failure probability of the cracks . Finally , the failure probability of the cracks is elementary estimated .
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小波神经网络在铝合金焊接缺陷诊断中的研究
Wavelet Neural Network Application to Diagnosing Defect of Aluminum Alloy Welding
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焊接缺陷超声检测信号的小波分析与处理
Wavelet Analysis and Processing of Ultrasonic Testing Signal for Weld Flaw
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用改进的小波分析识别焊接缺陷
The Quick and Accurate Identification of Brazing Defect with Improved Wavelet
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可靠性高、抗震能力强,焊接缺陷率底;
High dependability & quivery resistance capability and low solder defects etc.