The reason of lower welding qualified rate of high frequency welding spiral fin pipe is analyzed.
分析了高频焊接螺旋翅片管焊接合格率偏低的原因。
The high frequency welding procedure and its forming fundamental of spiral fin pipe is introduced.
介绍了螺旋翅片管高频焊接工艺及其成型基本原理。
The high frequency welding H-section steel has properties of broad and thin section component. Its higher axial lateral resistance capacity forms rigid frame.
高频焊接H型钢具有宽肢薄腹构件的特征，其强轴方向具较强的抗侧能力，形成刚性框架。
The reason of the Weld Joint Cracking on high frequency welding pipe was investigated by using macroscopic observation, metallographic technology, fracture analysis and EBSD technology.
本文通过使用宏观观察、金相分析、断口分析和电子背散射衍射（EBSD）等分析手段对高频焊管焊后弯管开裂的原因进行了分析。
The design and function of the solid state high frequency welding are introduced, at the same time the setting of the state signal measuring point in solid state high frequency welding is presented.
介绍了固态高频焊机PLC控制系统的设计和功能，以及固态高频焊机状态信号检测点的设置。
A square-wave AC high-frequency welding power source is composed of the square-wave AC high-frequency generator and DC welding machine controlled by thyristor.
将晶闸管直流焊机与方波交流高频发生装置组合，构成方波交流高频焊接电源。
A square-wave AC high-frequency welding power source is composed of the square-wave AC high-frequency generator and DC welding machine controlled by thyristor.
将晶闸管直流焊机与方波交流高频发生装置组合，构成方波交流高频焊接电源。
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