焊接的

This article analyses the cause of welding contraction of header and calculates the value of welding contraction through educing calculation formula on the basis of actual measurement and theoretical educement,also describes the application in manufacture.

主要分析了集箱焊接收缩量产生的原因，并根据实际测量和理论推导得出计算公式，对焊接收缩量的具体数值进行了计算，并阐述了在实际生产中的应用。

However,the report is fewon reducing stress occurred inwelding of fabrication and installation of headrace penstocks,particularly the welding stress in highstrength steelpenstocks in seasoning state.

对于减少引水压力钢管制造和安装焊接中产生的应力，特别是调质状态的高强钢压力钢管的焊接应力，国内外报导不多。

After comparing the image effect of homomorphic filtering, the effect of median filtering with different templates and the effect of binarizing with improved OTSU, the experiment results show that V groove laser image in underwater welding is preprocessed very well through such serial processing steps as homomorphic filter strenghening, median filtering, binarizing with improved OTSU, and thinning.

通过比较同态滤波前后效果、比较不同模板下的中值滤波效果、以及Otsu法改进前后的效果，实验表明，对水下焊接V型焊接坡口激光图片依次进行同态滤波增强、中值滤波、改进Otsu二值化和腐蚀细化一系列图像处理，取得了效果较理想的预处理结果。

A new technology is put forward which uses weld with trailing impactive rolling to control the welding stress and distortion of thin component and to prevent welding hot cracking.

提出了随焊冲击碾压控制薄壁构件焊接应力变形、防止焊接热裂纹的新方法，其原理为：通过前后冲击碾压轮，分别对焊后尚处于高温状态的焊趾和焊缝区金属施加一定频率的冲击碾压力

ABSTRACT In order to effectively dominate the weld formation during pulse tungsten inert gas welding of aluminum alloy in automatic p...

在铝合金脉冲TIG焊的自动化焊接过程中，保证焊缝稳定成形的有效措施是在获取焊接过程实时信息的基础上实现闭环控制。

In addition, longitudinal or transverse residual stress distribution of welded joint can be improved by using of trailing peening.

此外，焊接接头的纵向及横向残余应力分布状态均有了很大程度的改观，应力水平相对较低，有利于焊接结构的尺寸稳定。

According to these two curves and the stability curve of laser welding titanium alloys, the penetrative conditions were confirmed.

为解决钛合金易受空气中有害气体污染的问题，设计并加工了专用的焊接夹具和气体保护拖罩，取得了良好的焊接效果。

According to heavy-duty rail welding of containers at the port of Shantou,this paper studied high-carbon high-strength alloy-rail welding by using regular manual electric arc welding technology.

针对汕头国际集装箱码头重型钢轨的焊接问题，对高碳高强合金钢中的重型钢轨用常规的手工电弧焊焊接工艺进行了研究。

Explosive welding process is characterized in large plastic deformation and undulate interface in bonding zone.

爆炸焊接结合区产生大的塑性变形及波状结合，是爆炸焊接工艺的主要特征，也是实现良好冶金结合的必要条件。

We attach importance to science and technology research and mordern management. The superior team contains enough technic and management experts, especially, the weld technique has been in a leading position from home and abroad, and our technicians developed and researched 1.0mm thickness of the harmonicon pipe successfully, and was put into production in 2007, our company is the exclusive producing enterprise.

公司注重科技开发和现代化管理，拥有一批高素质的管理人才和工程技术人才，尤其在在焊接技术方面一直处于国内外领先地位，是国内最早研发和生产全铝焊接暖风芯的企业之一，并成功地研发了1.0mm的口琴管厚度，并已投入生产，这在国内属独家。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。