焊接

Welding earth wire: separate copper woven wire into three pieces, weave it again and enwind the phase respectively as well as weld it on the shielded copper band with electric iron and soldering tin; polish steel band welding area with sandcloth, and firmly weld with armored cable after wrapping up with copper wire.

2焊接地线：将铜编织线拆开分成三份，重新编织分别绕各相，用电烙铁、焊锡焊接在屏蔽铜带上；用砂布打光钢带焊接区，用铜丝绑扎后与钢铠焊牢。

When the Al-Mg-Zr-Sc welding wire was used as filling material,the grains of welding seam were refined obviously,and the weld joint was greatly strengthened by forming of fine equiaxial grains layer in fusion zone .

但采用Al-Mg-Zr-Sc合金焊丝为填充材料时，焊缝晶粒组织明显细化，熔合区形成的细小等轴晶层提高了基材与焊缝填充材料的结合力，焊接接头的屈服强度比采用Al-Mg-Zr合金焊丝为填充材料时提高了100 MPa，显著提高了Al-Mg-Sc合金焊接构件的许用强度，因此焊接Al-Mg-Sc板材更宜采用Al-Mg-Sc-Zr焊丝。

Responsibilities:Specification of welding machinesProgramming and assembly Testing, quality control and de-buggingInstallation at customer site Design of metal structures and basic machine partsMachine maintenanceAble to manage 1 electrical workerAfter sales supportRequirementsCollege degree in Mechanical EngineeringAble to read and speak English CET Level 65-10 years work experienceAble to read and produce working engineering drawingsAble to solve electrical and mechanical problemsBasic understanding of welding will be an advantageMale, age 30-45Totally honest and trustworthyHigh level of maturity

工作内容：对焊接机器编制使用说明规范设计和装配焊接机器测试，调试机器以及质量控制在客户方进行机器安装设计简单的金属结构和基本机械部件机械的日常保养管理电工售后服务支持职位要求：工程学士学位大学英语6级，出色的阅读和听说能力 5-10年工作经验能够阅读生产工作的工程图纸能够解决电气和机械问题有相关焊接经验的优先男性，年龄30-45 诚实守信，成熟稳重 Mechanical Machine Engineer

Mm. 7.5.3 Requirements for quality of weld joint's surface: a No crack, not fusional, bubble, slag, splash; b Surface of seam of pipeline with design temperature lower than -29℃, stainless steel pipeline and alloy steel pipeline with trend of harden quenching shall be free from undercut.

The surface shall be smooth 7.5.3 焊接接头表面的质量应符合下列要求： 28 SH 3501-2002 a 不得有裂纹，未熔合，气孔，夹渣，飞溅存在； b设计温度低于-29℃的管道，不锈钢和淬硬倾向较大的合金钢管道焊缝表面，不得有咬边现象；其他材质管道焊缝咬边深度不应大于 0.5mm，连续咬边长度不应大于 100mm，且焊缝两侧咬边总长不大于该焊缝全长的 10%； c 焊缝表面不得低于管道表面，焊缝余高Δh 应符合下列要求： 1 100%射线检测焊接接头，其Δh≤1+0.2b1，且不大于 2mm； 2 其余的焊接接头，Δh≤1+0.2b1，且不大于 3mm。

The law how these factors influence the joint"s property was pointed out. A formula about the relationship between extrusion times and contamination remainder was founded. Main reason to bimetal"s inharmonic deformation was the difference of their mechanical property. Thereby, the empirical formula showing the relation between metal combination"s mechanical property and quality of joint was constructed. Integrated influence of extrusion times and metal"s mechanical property to quality of cold pressure welding joint was discussed.

在模拟结果分析和实验的基础上，对影响异种金属冷压焊焊接性的工艺因素进行了分析；探讨了诸因素对接头性能的影响规律，并且建立了挤压次数与界面污染物残留量之间的数学表达式；指出了两种材料力学性能差异是造成不协调塑性变形的主要原因，并且建立了材料力学性能与其冷压焊焊接性之间的经验公式；定性的讨论了挤压次数及材料力学性能对冷压焊接头性能的综合影响。

It was founded that the hardness distribution is approximately symmetrical to the center of welding line , the weakest zone of the whole joint is about 10mm from the center of the welding line . The HAZ of the welding line has an intenerate zone. the center of the welding line presents a typical dendritic casting structure.

结果表明：焊接接头的硬度以焊缝中心线为对称轴呈近似对称分布，焊接接头的最薄弱环节位于距焊缝中心约10mm处，焊接接头的热影响区内存在一个软化区。

The defomation control on the installation welding of the lambdoidal strobe of three gorges permanent ship-gate is an important constituent part of welding quality control, which is an important mark to the success of welding quality control.

三峡永久船闸人字门安装的焊接变形控制是焊接质量控制的重要组成部分，是焊接质量控制成功与否的重要标志。

The company has the top advanced PQ35 plat and pre-technology. Among them, the product pack adopts much transport technology and mode of production, such as EHB, auto-operated electric car, slippery skiing that can carry out different types of assembly, new door's cementation technics and so on. The products' paint-pack use the top-grade e-coating, super filter wash, immerse to wash, top-advanced PVC series of material, machinal hand, adding cup type auto static electricity to spray method. The product's welding pack use the manufacturing technology for car body, such as the top-advanced Schottplatt laser check, laser weld, more-square welding, intermediate frequency's welding three-piece plat. The product's stamping use high-speed mechinal arm auto product line, KUKA dismantling robot, optics shoot slab stock orientation, and 800-tun coordinated auto pressure machines.

大众公司拥有着当今世界最先进的 PQ35平台和一大批世界先进的前沿技术，其中产品的总装配采用了可实现不同车型共线装配的滑橇、 EHB 、自动运行的电动小车、全新的车门密封条粘接工艺等输送技术与柔性化生产方式；产品涂装采用了世界一流的电泳、超滤液冲洗、浸洗、沥水和世界最先进的 PVC 系列材料及机械手、加杯式自动静电喷涂方式；产品焊装采用了目前世界最为先进的 Schottplatt 激光检测、激光焊接、大面积机器人焊接、中频焊接三层板、冲联等车身制造技术；产品的冲压采用了高速机械臂全自动生产线、 KUKA 拆垛机器人、光学摄像板料对中定位、及800吨三坐标式多工位自动压力机等。

All welds shall be made using the Tungsten Inert Gas welding process using tungsten nonconsumable electrodes and 100 percent commercially dry and pure argon gas for internal pipe purging and for electrode shielding.

所有焊接点的焊接必须采用钨极电弧焊之焊接方法，使用钨非自耗电极及100％干纯商品氩气用作内部清洗与电极保护。

Steel gas mains by electric arc, oxy- acetylene flame, or other welding

结构钢材焊接工以电弧、氧乙炔焰或其他焊接工序，割或焊接结构钢材，包括

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