焊接接头

The welding juncture of the axis head and the surrounded plate in the holding circle of bessemer converter crack severely .By means of analysis to the material,the structure and the process,we find out that one of the main reason of crack is the thickness of welding plates vary a lot, the other is that it isn't penetrable for welding.

转炉用托圈的轴头与围板焊接处严重开裂，通过对其材质、结构、工艺进行分析，找出接头断裂的主要原因，一方面是由于焊缝连接件厚度相差悬殊，另一方面是由于焊缝未焊透，这两方面原因造成应力集中。

We use mechanics testing method like stretch and bend to test the 3mm magnesium alloy(MB3) after friction stir welding. The stretch sample can show no less than 70% of raw materials performance when the condition is suitable: R= 1500r/min,v = 90mm/min,R/v=16.7 and F=1470N. Curve intensity of the joint reaches 90.2% and 83.0% at obverse and inverse curve separately.

利用拉伸、弯曲等力学测试手段对搅拌摩擦连接的3mm厚MB3镁合金板进行机械性能检验，检验结果为：在使用焊接合理工艺参数R=1500r／min，v=90mm／min，R／v=16.7，F=1470N的情况下，拉伸试样70％以上断裂于母材，接头正弯与背弯强度分别可以达到母材的90.2％和83.0％。

And welded rail s have begun to replace jointed rail .

焊接轨道已开始代替有接头的轨道。

""I have known Captain Savery, at York's buildings, to make steam eight or ten times stronger than common air; and then its heat was so great that it would melt common soft solder, and its strength so great as to blow open several joints of the machine; so that he was forced to be at the pains and charge to have all his joints soldered with hard solder.

""我知道（萨弗里队长，在纽约的建筑物，使蒸汽八名或10倍强，比常见的空气；然后，其热量是如此巨大，它将熔体常见的软钎料，其强度很大，吹开几个节点的机器；使他被迫要在痛苦和主管有他的所有接头焊接硬钎料。

Welding or pressing of cable cord with middle joint has passed quality inspection, covered by high voltage insulation sellotape, with tags, and its location is indicated in record of covered projects.

有中间接头的电缆芯线焊接或压接合格，外包高压绝缘胶带，挂标志牌，并在隐蔽工程记录中标明位置

Wind the crosslinked tape onto welded cable cores to certain size when connectingcables, and then use molding model to effect 0.6Mpa air pressure and a temperature of about 160℃ to sulfurate.

接头时用交联带一层层缠绕包覆在焊接好的电缆线芯上达到一定尺寸，再用成型模具加0.6Mpa空气压力、160℃左右高温硫化成型。

It is necessary to study the weldability of the bainite rail.The temperature field analysis was simulated by FEM.

文中对贝氏体与珠光体钢轨异种钢接头的焊接温度场进行了有限元分析，并且进行了试验测定。

C-type burdon tube and brass.

黄铜接头锡焊接。

The process of establishing neural network is as follows: two-layer neuronic network configuration is selected, S-type active function is used, input parameter of network are selected for thickness, preheat temperature, heat input and sampling point, output parameter of network is selected for fracture toughness property CTOD, learning algorithm of network is used for back-propagation algorithm.

本文选择了2层神经元的神经网络结构，采用S型激活函数，将板厚、预热温度、线能量、取样位置作为神经网络的输入，将环焊接头的裂纹尖端张开位移CTOD值作为网络的输出，通过BP算法的网络学习，采用VC语言建立了X70管线钢环焊接头CTOD与环焊工艺之间的神经网络。

The weldability of 30 steel and silicon bronze QSi3-1 was analyzed, the welding process was tested through manual TIG with HS211/HS213 wire. Then the X-ray, mechanical performance and fracture section analysis tests for the joints were done.

中文摘要：在对30钢和硅青铜QSi3-1进行焊接性分析的基础上，选用手工钨极氩弧焊方法配合HS211/HS213焊丝进行了焊接工艺试验，并对接头试样进行了X射线检测、力学性能测试和断口形貌分析。

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％。