查询词典 arc welding

This paper analyzes the cause of small concaves around the welding seam in the long rail of Guangzhou Metro Line 2, and presents preventive measures, such as increasing the under layer of the rail, limiting the weld seam, lowering the welding temperature etc.

摘要结合广州地铁2号线接触焊焊接长钢轨的实践，分析了产生焊头表面小凹痕的原因，提出改变垫高钢轨的方式、缩小正火範围、降低正火温度、限制接头错牙量等预防措施。

A process for manufacturing seamless flux-cored welding wires 0.8 to 4 mm in diameter with excellent cracking resistance and primer proof quality and containing very little diffusible hydrogen suited for the welding of high-tensile steels and steel structures subjected to large restraining forces by dehydrogenating by high-temperature heating comprises the steps of heating a straight wire 8-15 mm in diameter by direct electric heating through a first and a second pair of roll electrodes spaced 2 to 5 m apart and a ring transformer disposed therebetween to a temperature between 620 and 1100 degrees Centigrade, cooling the heated wire to a temperature not higher than 500 degrees Centigrade with a coefficient of heat transfer not higher than 250 kcal/m2 h degree Centigrade, and drawing to the desired diameter.

一种用来制造直径0.8至4mm的、具有优异的抗裂缝力和底层涂料防护质量并含有非常少的扩散氢的、适合于焊接高强度钢和承受大约束力的钢结构的无缝药芯焊丝，通过用高温加热进行脱氢处理来制造的工艺包括步骤：通过经布置成相隔2至5m的第一和第二对辊电极并经布置在它们之间的环心变压器的直接电加热，把直径8至15mm的直焊丝加热到620与1100℃之间的温度；用不高于250kcal／m2h℃的传热系数把已加热焊丝冷却到不高于500℃；以及拉伸到想要的直径。

A new technique of directly welding enamelled wires was introduced and the welding theory with relevant experiment results was discussed.

介绍直接焊接漆包线的脱漆焊新技术，并结合相关的试验结果分析讨论了其焊接机理。

All welding of stair stringer miters, closure plates, extension pieces, and similar welding applications shall be continuous welds and shall be ground smooth.

所有的焊接：包括楼梯梁的斜截面、封板、内外螺纹管接头、以及其他类似的焊接，都要进行连续焊接并要磨光处理。

The most important factor for automatic welding is the ability to provide consistent welding parameter and quality control.

对自动焊机来说最重要的要素是要能提供稳定的焊接参数和质量。P260集成了

Dissolved acetylene cylinder, stainless steal welding cylinder, liquified propanecylinder, different kinds of welding cylinder.

溶解乙炔气瓶，不锈钢焊接气瓶，液化丙烯钢瓶，各种焊接气瓶。

The running tests of the alloy coatings on the blade of hydraulic turbine produced using oxy - acetylene spray welding procedure manifested that the average service life of many different hydraulic turbine obtained a lot improvement after spray welding.

应用氧乙炔喷焊工艺在水轮机叶片上制备合金涂层，经过数台机组多年的实际运行，表明该材料抗磨蚀性能优异，喷焊后的水轮机叶片的平均使用寿命得到大幅度提高。

Mainly engaged in welding equipment, welding materials, hardware tools, air separation equipment and the provision of related engineering and technical services.

主要经营焊接设备、焊接材料、五金工具、空分设备及提供与之相关的工程技术服务等。

Carbide products company's main products: bar, long thin, box, welding blade, turning blades, rotating file of rough, spiral blade, bamboo cutter blade, the saw blade cutter rough, porous stretch mode, Blank-cold heading, roll, possession, Central, the ball, special-shaped nozzle and various parts overall carbide tools: Jingmoyuanbang, the overall carbide bit, end mills, the key slot cutter, R cutter, ball - Cutter, Reamer, small aperture boring knife blade cutter, welding-type spiral end mill and Gezhongfeibiao tool of high-density tungsten alloy products: Jingmoyuanbang, oscillator, the Pendulum, with weights, fly Benchmarking, and so on.

公司主要产品硬质合金制品：棒料、长条薄片、方块、焊接刀片、可转位刀片、旋转锉毛坯、螺旋刀片、竹木刀具刀片、锯片铣刀毛坯、微孔拉伸模、冷镦模坯、轧辊、管、环、球、喷嘴及各种异型零件整体硬质合金工具：精磨圆棒、整体硬质合金钻头、立铣刀、键槽铣刀、R铣刀、球头铣刀、铰刀、小孔径镗刀、锯片铣刀、焊接式螺旋立铣刀及各种非标刀具钨基高密度合金制品：精磨圆棒、振子、摆锤、配重块、飞标杆等。

Main products are: ultrasonic plastic welding machine, micro-computer precision spot welding machine, ultrasonic mold, voltage resistance tester, lithium battery protection board tester; company has strong technical strength, with high-quality talent reserves - the development of experienced design engineers, skilled staff; advanced production equipment, superior manufacturing processes and high-quality and efficient after-sales service.

主营产品有：超声波塑焊机，微电脑精密点焊机，超声波模具，电压内阻测试仪，锂电池保护板测试仪；公司技术力量雄厚，拥有高素质人才储备--经验丰富的开发设计工程师、技术精湛的员工；先进的生产装备、卓越的制造工艺以及优质快捷的售后服务。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。