电弧焊

CO2 Arc Welding is a kind of advanced welding method.

CO_2气体保护电弧焊是一种先进的焊接方法。

I am a perfect stranger in electric arc welding.

我对电弧焊完全陌生。

A new method for seam tracking using image centroid in gas tungsten arc welding is presented.

研究一种基于图像质心识别的电弧焊焊缝跟踪新方法。

In addition, more than 20 kW of high-power lasers for welding of more than 10 mm thick steel plate, as a result of higher heat input, low cooling rate, the degree of hardening of the weld with manual arc welding and gas close to Paul.

另外，使用超过 20 kW的大功率激光器来焊接10 mm 以上的厚钢板，由于输入热量更高，冷却速度变低，焊缝的硬化程度将与手工电弧焊和气保焊水平接近。

First, the mismatching factors of submerged arc welding and shielded metal arc welding of S355ML steel (65mm thickness) were determined with "direct measurement method". Then, the butt welds of SAW and SMAW were made to full thickness fracture toughness specimens and the fracture toughness in welds centre were measured by CTOD test.

用&直接测量法&确定了低合金高强钢S355ML钢板（厚65mm）自动埋弧焊和手工电弧焊的焊缝强度匹配系数，同时将这两项焊接工艺的对接焊缝制成全厚度断裂韧度试样，运用裂纹尖端张开位移试验方法测定其焊缝中心的断裂韧度。

Metal frame and casings of welding machine and of engine-driven machine shall be effectively grounded.

电弧焊机和发动机驱动焊机的金属框架和外壳要进行有效地接地。

In the bead-on-plate experiment, the trial pieces were SAE1020 steel, the activating fluxes were oxide, Carbonate, Sulfide and fluoride, and the welding method was argon shielding gas tungsten arc welding without filler metal.

实验材料选用SAE1020，活性助焊剂选用氧化物、碳酸盐基、硫化物及氟化物，焊接方法采用不加填料金属的氩气保护钨极电弧焊来进行Bead-on-plate实验。

Fracture toughness of both shielded metal arc welding and gas metal arc welding is almost the same.

焊条电弧焊焊缝的断裂韧性与气体保护焊焊缝的断裂韧性相当。

An automatic arc welding machine for saddle joint seam on large diameter cylinders was designed and its structure,components,characteristic and working principle were discribed in this paper.

介绍了大直径筒体马鞍形接缝自动焊机的结构和工作原理，以及设计的主要特点。推导出了该系统用来控制气体保护电弧焊焊枪运动轨迹的关键部件──凸轮的形状与尺寸的计算公式：l =l′-Z′=l′- [(R2 -r2 cos2 ψ) 1/ 2 -rsinψcosα]/sinα。

Gray castiron works may be repaired by arc welding with electrodes of 08 or ordinary iron wire covered with special coating which contains ferro-aluminium and other graphilizers. During welding process, it is found that these electrodes produce a weld of gray cast iron structure.

灰鋳铁铸件可以用08焊丝或普通鉄丝复以含有铝铁及其他石墨化剂的特种药皮的焊条电弧焊补，在焊接过程中，这种焊条形成灰铸铁组織的焊縫。

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。