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焊缝金属

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Harmer the welding seam to extend the weld metal, with which to counteract the welding stress caused by shrinking of welding seam.

采用锤击焊缝的方法使焊缝金属受到锻打延伸,抵消焊缝的收缩引起的焊接应力

The results show that the addition of Zr increases the content of acicular ferrite and improves the microstructure of weld metal.

结果表明,锆的加入增加了焊缝金属中针状铁素体的含量,改善了焊缝金属的微观组织。

The composition and cooling rate of the weld metal are the main influencing factors on acicular ferrite.

结果表明,焊缝金属化学成分和冷却速度是影响针状铁素体的主要因素,应力对焊缝金属相变的影响很小。

A commonly observed welding defect characteristically occurs at high-speed welding, such as humping weld. Humping is the periodic occurrence of beadlike protuberances.

但焊接速度提高的同时也更容易产生焊接缺陷,如驼峰焊道,即焊缝金属沿焊接方向上分布严重不均的焊缝成形缺陷。

But for the TEC overmatching, the residual stress σ〓 in the weld center is also related with the strain hardening coefficient H W of the weld metal. The residual stress σ〓 in the weld center got to the yield strength σ〓 increases little when the H'w is lower and somewhat exceeds the σ〓 when the H'w is higher.

而高胀匹配时的焊缝中心纵向残余应力σ〓还与焊缝金属应变硬化指数H〓有关,H〓较低时,焊缝中心纵向残余应力σ〓在达到焊缝金属屈服强度σ〓后不再升高;H〓较高时,焊缝中心纵向残余应力σ〓可超过焊缝金属屈服强度σ〓。

2 What is the maximum allowable stress for CJP groove weld meta l splicing two ASTM A-36 steel non-redundant members of equal thickness and width, subject to loading of 2×106 life time stress reversals, assuming the weld reinforcement remains and all such joints are to be radiographed ?

对於连续两个同样厚度和宽度的 ASTM A-36钢的非超静定焊接件,假定保持焊缝加强高并所有如此接头都要进行射线探伤,在承受2×106连续应力交变载荷下完全熔透坡口焊缝金属的最大允许应力是多少?

Mechanical properties of the weld metal Mechanical properties of the weld metal are not part of the classification.

焊缝金属的机械性能焊缝金属的机械性能不是分类中的一部分。

Influence of the relative width of weld metal and strength of weld metal wes researched.

研究了焊缝金属相对宽度和焊缝金属强度对接头性能的影响。

The influence of heat input on microstructure and properties of weld metal and inclusions in weld metal were also studied in depth.

本文对微合金钢焊缝金属中AF组织的相变动力学和相变热力学进行了系统的研究,同时对热输入对焊缝金属组织及性能的影响和焊缝金属中的夹杂物也进行了深入的研究。

Thus, study on the formation mechanism of AF in weld metal of microalloyed steel has both theoretical and practical significance.

焊缝金属中含有65%以上、平均尺寸约为1μm的AF时,焊缝金属具有良好的综合力学性能。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。