查询词典 weld

Numerical simulations of welding transient stress and residual stress with yield strength and thermal expansion coefficient mismatching between the weld metal and the parent metal have been carried out for the first time.

相同焊接温度场的有限元计算结果表明，焊缝与母材强度和线膨胀系数等匹配时，焊缝中心纵向残余应力σ〓与母材屈服强度σ〓和线膨胀系数α〓有关。

FXD increases the speed and quality of gouging operations dramatically, producing a trough in which the parent metal is exposed, almost totally free of slag or weld-back, and ready for welding.

FXD提高挖凿的速度和质量是显著的，在母材上加工一条明显的槽，几乎完全没有熔渣和韩背，直接焊接。

Where filler materials having tensile properties deviating from the parent metal are used, this fact must be taken into account when dimensioning the weld joints.

从母材部分开始使用具有伸缩性的填角材料之处，计算焊缝时应该考虑到这种情况。

In this paper, with an original designed tool and selected welding parameters, 2024-T4 aluminum alloy sheets were friction stir welded successfully. A series of weld experiments were performed; the microstructure and the mechanical properties of the joints were analyzed. The influences of the welding parameters upon the quality of the joints were studied. The optimized welding parameters window was obtained in which high quality joints can be made and the tensile strength of the optimized joints were more than 80% of that of parent metal. The residual stresses of FSW joints have been investigated by using the Hole-drilling method.

本文自主设计搅拌头，通过选择合适的工艺参数，成功实现了硬铝合金2024-T4板材搅拌摩擦焊接；通过对接头成形和微观组织的研究得到可以实现焊接的工艺参数范围和工艺参数对接头成形的影响规律，并结合接头力学性能研究形成了接头性能与工艺参数之间的关系，并据此建立了优化工艺参数窗口，优化工艺参数下接头的抗拉强度可达到母材的80%以上。

Appeared not a few difficulties in this experiment of the plank of system with weld with the problem, pass our check with after the analysis, all got the good solution.

在本实验的制板和焊接中出现了不少的困难和问题，通过我们的检查和分析后，都得到了很好的解决。

Stainless welded pipe ; weld roll flat ; rolling technology ; control system

不锈钢焊管；焊缝轧平；辊轧技术；控制系统

For magnetic powder or the seepage check of slip-on welding flange Type A and Type B, weld connection surfaces between the flange and cylinder or short pitch., its method should conform to JB4730, checking results must reach level I to prove to be valid.

6.6.1.3 对甲型平焊法兰、乙型平焊法兰，法兰与圆筒或短节间的连接焊缝表面应进行磁粉或渗透检测，检测方法按照JB4730，结果一级合格。

Fools act imagination without knowledge; pedants act on knowledge without imagination and the task of a university is to weld together imagination and experience.

蠢人凭空想像，没有想像的学究只会照搬书本，大学的任务是教人将想像和经验结合在一起。

Fools act on imagination without knowledge; pedants act on knowledge without imagination and the task of a university is to weld together imagination and experience.

无知的蠢人只会凭想像行事，而书呆子只知道照搬书本，没有任何想像力可言。大学的任务是教人如何将想像力和实际经验结合起来。

A prototype seam tracking machine was then made for overlapping weld of automobile pressure box ordered by a car company.

并为某汽车厂开发了用于汽车储气罐制造薄板搭接焊缝自动跟踪的工业应用系统样机。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。