查询词典 arc welding

The effects of welding speed, welding current and effective radius electric arc on temperature field are discussed.

对焊接过程产生的应力进行了实时动态模拟，利用本文模拟分析方法，可以对焊接过程的热应力及残余应力进行预测。

Even when the distance between the welding torch muzzle and the surface of the work piece changes, this control system will keep the stability of arc length, so as to achieve a stable welding process.

该系统能够在焊枪喷嘴和工件表面的距离发生变化时，保持电弧弧长一定，从而保证焊接过程的稳定。

When the welding current is added, on the one hand,the section of arc will more or less increase, so the fusion width will increase; on the other hand, the depth of arc crater will increase.

焊接电流增加时，一方面是电弧截面略有增加，导致熔宽增加，另一方面是电流增加促使弧坑深度增加。

The cathode phenomena in hollow cathode arc discharge in vacuum wereinvestigated systematically. The influence of welding parameters on active zone ofhollow cathode , arc appearance and voltage-ampere curve was investigated.

小电流的发散态电弧能量密度低，柔性大，可作为局部加热热源进行真空钎焊；大电流的可作为理想的熔焊热源，进行各种难熔易氧化金属在真空条件下的高质量焊接。

Characteristics: Electrode antiseize function Computer automatically delay the unaspirated HF / touch igniting function W-automatic function Xiaoqiu From the Arc / pit filled arc current adjustable Overheating instructions, overload protection, a thermostatically controlled fan, the self-inspection failure Welder software upgrade Technical parameters: Equipped with closed-loop water-cooling system Welding current: 3 - 400 amperes Voltage: 10.1 - 22.0 V

特性： 电极防粘功能电脑自动延缓送气高频/接触引弧功能钨针自动削球功能起弧/填弧坑电流可调过热指示，过载保护，温控风扇，故障自检焊机软件升级技术参数：配备闭环式水冷却系统焊接电流： 3 -- 400安培工作电压： 10.1 -- 22.0 V

Cheesed head studs for arc stud welding are largely applied in bridges, reinforced concrete for high buildings and industrial buildings, cover fixture of heave duty ships, boiler pipe welding, inserts fixture for boiler pipe and other special purposed containers.

电弧螺柱焊用圆柱头焊钉系列产品主要用于桥梁、高层建筑及工业厂房的钢-混凝土结构，大吨位船舶各种孔盖的固定，锅炉管道的螺柱连接、锅炉管道的散热及储罐、槽车等各种容器特殊衬里的固定。

By analyzing the arc characteristic of the CO2 short circuiting transfer welding process, a PC analysis and evaluation system for the CO2 welding process was built up.

分析了CO2焊接的短路过程电弧特点，建立了CO2焊计算机采集及评价系统。

The arc stud welding roaching of BMK-16i was used to do some welding experiment oflight-sized stud with the diameter less than 13mm. When the stud with the diameter of 8mmwelded, the protection of the molten pool from the atmosphere is necessary.

采用BMK-16i螺柱焊机进行小尺寸螺柱焊接试验，直径8mm的实心螺柱的拉弧式螺柱焊时，采用氩气保护的接头强度比未采取保护措施的接头强度提高35％。

The res ults of arc-starting and welding tests for titanium alloy are also presented in detail in the paper . Tensile strength of welding joints has reached the demands of we lding standard, esp. no spatters on back weld are obtained in contrast w ith EBW.

文中详述了空心阴极焊枪设计、引弧试验情况及钛合金焊接工艺试验，结果表明焊接接头拉伸强度达到标准的要求，特别是与电子束焊相比，焊缝背面无焊接飞溅。

Arc plasma has many advantages, such as high temperature、 high energydensity and so on. It has been applied in the field of cutting、 welding、 metallurgyand material prepared etc, but there is a long-term problem in the field of the arcplasma technology, which is how to reduce cathode erosion to increase the life-timeof arc plasma generator, so many scholars in the world have been studying theproblem on the cathode erosion.

电弧等离子体具有温度高、能量密度大和对环境污染小等特点，它已被广泛应用于切割、焊接、冶金、材料制备等领域，但是在电弧等离子体技术中，怎样减少阴极烧损提高等离子体发生器的寿命是电弧等离子体技术中一个长期问题，因而国内外的许多学者仍在对阴极烧损这个问题进行研究；本文围绕&通过提高阴极表面温度，增强阴极表面的电子发射能力，来增大阴极弧根直径，进而降低电弧通过阴极弧根传入阴极表面的有效比热流，以达到减小阴极烧损的目的。&

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。