焊缝

The results show that a sound bonded interface is obtained without sheet inclusion, pore and unbinding. The microstructure consists of bulk α-Mg phase and needle compound in the weld metal, element Al diffuses along the grain boundary of the substrate into the welding line. A little Y diffuses into the base metal. A little Mn and Cu segregate and element Ni distributes homogeneously and no segregation appears in weld area.

结果表明：界面接合良好，未观察到片状夹杂物、气孔及未焊合等缺陷；焊缝区由块状α-Mg相和针状化合物组成，基体中的Al元素通过晶界扩散偏聚到焊缝中，微量Y元素扩散到基体中，有少量的Mn和Cu元素发生偏聚，Ni元素分布均匀，没有发生偏聚现象。

The influences of the technological parameters of vacuum diffusion bonding of logging ceramic probe(Al2O3 ceramic to 45 steel) such as temperature,pressure and time on the shear strength of the bonging seam were studied by the orthogonal optimization test .

利用正交优化试验方法，研究了测井探头Al2O3陶瓷电极座与45钢基体真空扩散焊温度、压力和时间等工艺参数对焊缝抗剪强度的影响，并总结出相应的关系式，然后分析了温度、压力和时间等工艺参数对焊缝抗剪强度的独立影响和交互影响。

An intelligent controller was designed for welding process charactering as multivariable and non-linear to realize dynamic control for seam tracking and weld penetration control .

研究了从焊接温度场中获取焊缝位置和熔透信息的方法，在此基础上设计了规则自调整模糊控制器，实现了MIG/MAG的焊缝跟踪与熔透控制。

About 35,000 pages survived the war, buried in milk churns and tin boxes.

一些包装的焊缝焊合的非常密实，而一些包装的焊缝开裂了。

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？

Radiographing a weld seam of catalogue A with 48mm of plate thickness tow slag line of 14mm and 13mm in length with interval 70mm are revealed on the radiograph, weather the weld seam is acceptable or not (the length of the film is 300mm)?

48mm板厚的A类焊缝射线探伤，底片上发现了二个14mm和13mm长的线状夹渣，两者间距为70mm，该焊缝是否合格(胶片长为300mm)？

Change tradition tee joint into abutment joint , resulting in clear increase of fatigue strength of welding line of oscillating axle of press and safety service life of press hence a worthwhile method for corresponding personnel .

文章提出了提高压力机的摇摆轴焊缝的疲劳强度的技术措施，即将传统的在光轴上的&T&形接头改为台阶轴上的对接接头，可显著提高压力机的摇摆轴焊缝的疲劳强度及压力机的安全使用寿命，此方法值得有关人员借鉴。

The eddy current conductivity gauge was used to measure the conductivity distribution of the weld cross section and the conductivity at the original weld line with different depth of the lack of penetration defect in the friction stir weld of LY12 aluminum alloy.

采用涡流电导测量仪，测量LY12铝合金搅拌摩擦焊垂直于焊缝方向的电导率分布及具有不同深度未焊透缺陷处焊缝的电导率。

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.,LTD.

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。

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 weld s 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。

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