焊缝

In order know the size and the distribution of residual stresses of mill welding seam,this paper uses blind-hole method to test the girth welds between round plate and the cylinder body of the mill produced by CBMI CONSTRUCTION CO.

为了了解滑履磨机焊缝残余应力的大小和分布规律，该文应用盲孔法对中材建设有限公司生产的某型号磨机的圆平板与圆筒体之间的环焊缝及其近缝区的表面残余应力进行了现场测试。

But it has some shortcomings. Connecting weld of doubler strake is directly welded on plating strengthened, in this way welding fluid fuse with plating strengthened such as deck plating or bottom plating, and then connecting of doubler strake fuse with deck plating or bottom plating strengthen. So breakage like crack of connecting of doubler strake may immediately destroy deck plating or bottom plating strengthened, which became of navigational accident.

但是，增设复板条来提高船舶总纵强度的方法有其缺点，每段复板条之间的对接焊缝是直接在被加强的板上施焊，焊缝就会溶入被加强的甲板或船底板，使得复板条对接接头与被加强的甲板或船底板发生粘连，这样，复板条对接接头的开裂等破坏就会直接引起船舶被加强的甲板或船底板的破坏，从而导致海难事故。

A seam of coal bassets.

搭桥焊缝；桥接焊缝

It is found that the design of dog-bone connections can transfer the yielding joint from flange welds to parent metal zone, which possesses better plasticity and avoid yielding joints in weak welds.

本文在弹塑性有限元分析的基础上，对普通节点和狗骨式节点进行了耗能能力对比分析，结果表明：狗骨式翼缘削弱设计可以将梁柱翼缘焊缝的塑性铰有效的转移到塑性好的母材区域，避免了在薄弱的焊根部位形成塑性铰，保护了韧性较差的焊缝。

Three types of SiCp/3003Al composites which was with the volume fraction of reinforcement of 0%,15% and 30% were welded by continuous flash butt welding under the same welding technology parameters.

用连续闪光对焊方法在同种焊接规范下分别对增强相含量为0%、15%、30%的SiCp/3003Al复合材料进行了连接，利用光学显微镜、SEM、AG-25TA型电子拉伸试验机对焊缝组织及性能进行分析，结果表明：含15%、30%SiCp的复合材料焊缝成型良好，含30%SiCp的复合材料接头强度最高。

Fracture toughness of both shielded metal arc welding and gas metal arc welding is almost the same.

焊条电弧焊焊缝的断裂韧性与气体保护焊焊缝的断裂韧性相当。

The results show that, the coefficients of welded joints are both greater than 0.9, but the yield strength of weld joint filled with Al-Mg-Zr-Sc welding wire is greater 100 MPa than that of filled with Al-Mg-Zr welding wire. It indicates that the Al-Mg-Zr-Sc welding wire is the best alteration of filling materials to weld of Al-Mg-Sc alloy.

但采用Al-Mg-Zr-Sc合金焊丝为填充材料时，焊缝晶粒组织明显细化，熔合区形成的细小等轴晶层提高了基材与焊缝填充材料的结合力，焊接接头的屈服强度比采用Al-Mg-Zr合金焊丝为填充材料时提高了100 MPa，显著提高了Al-Mg-Sc合金焊接构件的许用强度，因此焊接Al-Mg-Sc板材更宜采用Al-Mg-Sc-Zr焊丝。

This article introduced application of digital laser vision technology in several key links during welded pipe manufacturing,including realizing weld tracking,adaptive adjusting welding parameters or angle of driving the strip, measuring coil plate width and edge contour,measuring steel pipe diameter,and automatic inspecting weld profile and defects,etc..

介绍了数字激光视觉技术在焊管制造过程中多个关键环节中的应用，包括实现焊缝跟踪，焊接参数或钢带送进角度的自适应调整，钢板宽度与边缘形状的检测，钢管外径的测量，焊缝成形及缺陷的自动检测等。

It can improve the LAHS weld mechanical properties by transferring suitable amount of rare earth elements of the changed electrode coating.

通过改变焊条药皮中的重稀土含量，向焊缝过渡不同含量的重稀土元素以提高焊缝的机械性能。

With the development of high technology of industrial production, the welding quality of thick wall weldments is becoming more and more important, which expands the applied range of SAW. The SAW seam tracking is the critical technology to prompt productivty and welding quality.

高技术工业生产对厚板焊接的质量要求越来越高，使埋弧焊具有日益广阔的应用前景，而埋弧焊的焊缝跟踪技术则是进一步提高焊接生产率和焊缝质量的关键。

John Robbins lives with his family in Santa Cruz, California.

约翰罗宾和家人居住在加利福尼亚州的圣克鲁斯县。

The international background is mainly the economic ties among different nations tented to be widen and deepen at the peace and development times.

国际背景主要是和平与发展时代条件下的世界各国经济贸易联系的日益加深。