接头

Considering the prerequisite of joint non-linearity and glue-line elasto-plasticity,the stress distributions in the glue-line of asymmetrical joint for continuous or gap jointing were analyzed by finite element method and glue-line structure optimization was made.

在考虑接头非线性和胶层弹塑性的前提下，利用有限元方法分析了连续胶层不对称接头和间隙连接不对称接头中胶层内的应力分布情况，并在此基础上对胶层结构进行优化。

This invention relates to an elevator wire rope end joint and its field koldflo and a device which applies a partial koldflo to connect the wire rope and a joint blank to one unit at site when mounting and maintaining elevators, every joint is extruded by 2-4 times with 10-20 mm width eath.

本发明涉及一种电梯钢丝绳绳端接头及其现场冷挤压成型方法和冷挤压装置，本发明采用局部冷挤压成型法在电梯安装和维护的现场把钢丝绳和接头毛坯连成一体，每个接头进行2～4道挤压，每道挤压宽度为10～20mm。

The research results indicate that the interface between weld and l2Crl MoV steel is the weakest part of welded joint. However ,the interfacial failure tendency of low match welded joint is less than those of medium and high match welded joint.

试验结果表明，焊前预热250℃，焊后回火750℃×1h，加速模拟运行500h后，高匹配和中匹配接头的力学性能劣化明显，界面蠕变损伤及失效倾向较大；而低匹配接头的力学性能优于高匹配和中匹配接头，界面蠕变损伤较轻，失效倾向较小。

ABSTRACT Appling the numerical model and control theory to the state identification of carbon migration in dissimilar metal weldments , its law and quantitative calculation were researched. Based on analysising of metallurgical and dynamics properties of DMWs, the influences of welding procedure's factors on their high-temperature properties were studied in this dissertation. The following are the main contents.

本文将数值化建模和控制理论引入到异种钢焊接接头碳扩散迁移状态辨识，对碳的扩散迁移的规律及定量计算进行了研究，在对异种接头冶金性能和力学性能进行分析的基础上，对焊接工艺因素对接头性能的影响进行了研究，主要内容如下： 1。

Auxiliary components, including fuel tanks, oil filters, tubing and pipe joints, seals, quick change connectors, high pressure ball valve, hose assembly, pressure joint, pressure gauge, oil level terms, such as oil temperature.

辅助元件包括油箱、滤油器、油管及管接头、密封圈、快换接头、高压球阀、胶管总成、测压接头、压力表、油位油温计等。

XLE-D250×300、XLE-D350×350 rubber strip joints curing press are open-side structure with two up setting mold closing oil tanks used for rubber strip joint of transfer molding process Therefore, the machine is mainly set up of rubber transfer injection barrel and daylight press XLE-400×400 strip joints curing machine is double open-sides structure with traditional molding process and hydraulic cylinder is up setting style.

XLE-D250×300、XLE-D350×350胶条接头硫化机为鄂式结构，两个合模油缸为上置式采用传递模压工艺对胶条进行接头。因此，机器由胶料传递注压料筒和平板硫化机两个主要部分组成。XLE-D400×400胶条接头硫化机为双联鄂式结构，为传统模压硫化工艺，液压缸为上置式。

The Floormen rotate the pipe into the box utilising the air spinner or where applicable, the Driller utilises the top-drive or the kelly spinner.

钻工在钻杆或管子接头上上打上大钳（内钳打在下方接头上，外钳打在上方接头上）钻工通过拉钳头推钳柄使钳子咬紧。

The first to launch a national initiative "of the joint trial of leakage," in detecting AS bolt seal, through the joint, three fittings and water meters, Shell and other parts of the pressure of airtight performance and has played a leading role.

率先推出了国内首创的&管接头试漏机&，在检测AS止水栓、直通管接头、三通管接头及水表外壳等零件的耐压性能和气密性能方面起到了领头羊的作用。

Aiming at the engineering problem that K welding machine is used to weld PD3 60kg/m rail during welding production at present, the quality of the joint falls short of the standard of TB/T1632-91 because of the objection of grey-spots in the welding joint, this paper analyses the element which influence the welding joint quality in detail from the stability of flash of the accelerating step of the rail, finds out the relationship between the stability of flash-butt welding and the quality of rail joint, provides the measure for controlling the quality of rail welding and some gist for establishing perfect controlling system of welding joint quality

针对目前焊轨生产中采用K型焊机焊接PD3 60kg/m钢轨，接头灰斑缺陷多，性能难以达到部颁标准要求的工程问题，对材质、焊接电压、焊接工艺对接头质量的影响进行研究，并从钢轨焊接加速烧化阶段的闪光稳定性入手，详细分析了影响接头质量的因素，找出了钢轨闪光焊稳定性与质量的关系，提出了控制钢轨焊接质量的措施，为建立完善的焊接质量控制体系提供了依据。

Results show that when improving spot pitch in weld bonded joints with high elastic modulus adhesives, stresses in weld spot zone are decreased while stresses and strains at edges of overlap region are increased slightly. For the joints with low elastic modulus adhesives, both stress concentration degree at the weld spot and the shear strain at edges of overlap region are increased with the spot pitch increasing.

结果表明，高弹性模量胶粘剂胶焊接头中，增大焊点间距，焊点区应力减小而搭接区边缘胶层中的应力应变略有增大；低弹性模量胶粘剂胶焊接头中，焊点处应力集中程度和搭接区边缘胶层中的剪应变值都随焊点间距的增加而增大，增加焊点间距，两种接头的胶层断裂强度都将降低。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。