But with the same length of straight seam pipe than the weld length of 30 ~ 100%, and lower production rate.
但是与相同长度的直缝管相比，焊缝长度增加30 ~ 100%，而且生产速度较低。
Two groups of matching relation of the weld speed and the wire feed rate were found in a condition of invariable laser power and focus position.
前者试验获得了一定激光功率和离焦量条件下两组焊接速度和送丝速度的匹配关系，并发现填充焊丝的加入对焊缝咬边现象确有改善；
The fatigue crack propagation rate of the fusion line and weld toe are greater than that of the others.
熔合线和焊趾处疲劳裂纹扩展速率较其他部位大。
Through orthogonal experiment, laser power, scanning rate and gas flow were optimized and pretreatment techniques were adopted to cancel pore and crack in laser weld of LY12CZ.
为消除LY 12 CZ铝合金激光焊接时焊缝中常见的气孔和裂纹缺陷，通过正交实验，优化了激光功率、扫描速度、保护气体流量等工艺参数，并采取适当的焊前预处理工艺。
The fatigue crack growth rate and CTOD tests on type 304 stainless steel and weld metal were studied over the temperature range -162 degree C to room temperature.
疲劳裂纹扩展速率和CTOD测试型不锈钢304研究和焊缝金属的温度范围-162度到另一个房间 温度。
The main influencing factors of the microstructure in weld metal are composition and cooling rate of the weld metal.
研究了焊缝金属相对宽度和焊缝金属强度对接头性能的影响。
When electrode negative ratio is zero, which is using MIG welding with DC ami welding wire being positive polarity, weld penetration is maximum , wire melting speed and deposition rate are minimum;
当负极性比率等于零即直流且焊丝为正极性的MIG焊时，其焊缝熔深最大，焊丝熔化系数最小，熔敷速度最小；
Metal cladding high rate of weld forming, welding deformation small.
敷率高，焊缝成形好，焊接变形小。
The temperature field of welding workpiece determines the stress field and strain field, and it is also the main factor affecting the weld quality and production rate.
焊接工件的温度场决定了焊接应力场和应变场，是影响焊接质量和生产率的主要因素。
It possesses the merits of small splash, large melting depth rate, simple operation and good weld-seam shaping etc.
具有飞溅小，熔深比大，操作简便、焊缝成形好等特点。
Effect of lower temperature and high loading rate on the fracture behaviors of weld metal was studied.
加载速率是影响裂解质量的重要因素，合理的加载速率可以提高材料的脆性。
The experiments show that with the new programming strategy the reject rate is reduced from 20% to 5% and the weld quality is remarkably improved.
经过试验证明，采用优化示教轨迹可使焊接废品率从2 0 %下降至5 % ，有效提高了焊接质量。
The result shows that laser induced plasma and weld geometry are sensitive to side nozzle height, its inclination angle and side gas flow rate;
结果表明，侧吹喷嘴高度和侧吹流速的变化对光致等离子体行为和焊缝形貌有显著的影响；
The result shows that laser induced plasma and weld geometry are sensitive to side nozzle height, its inclination angle and side gas flow rate;
结果表明，侧吹喷嘴高度和侧吹流速的变化对光致等离子体行为和焊缝形貌有显著的影响；
应用推荐