| 脉冲埋弧焊工艺研究及焊缝熔深特征 |
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| 引用本文： | 李桓,郭胜,陈埒涛,刘琼,王庆国,田鹏,叶长军. 脉冲埋弧焊工艺研究及焊缝熔深特征[J]. 焊接, 2004, 0(7): 10-12,23 |
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| 作者姓名： | 李桓 郭胜 陈埒涛 刘琼 王庆国 田鹏 叶长军 |
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| 作者单位： | 天津大学材料科学与工程学院,300072;华油钢管有限责任公司,青县,062650 |
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| 摘 要： | 针对埋弧焊HAZ粗晶区晶粒粗大、韧性指标低、提高焊速后成形变差等缺点，提出了一种采用直流脉冲电流的埋弧焊工艺，简要介绍了以单片机为核心的脉冲电流控制器的原理。利用正交试验设计法设计并进行了试验，研究了脉冲诸参数对焊缝成形的影响；试验表明，脉冲埋弧焊工艺能使焊缝得到比较大的熔深。
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| 关 键 词： | 脉冲 埋弧焊 脉冲频率 脉宽比 熔深 |
STUDY ON TECHNIQUES AND PENETRATION CHARACTERISTICS OF PULSED SUBMERGED ARC WELDING |
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| Tianjin University Li Huan,Guo Sheng,Chen Lietao,Liu QiongNorth China Petroleum Steel Pipe Co.,Ltd Wang Qingguo,Tian Peng,Ye Changjun. STUDY ON TECHNIQUES AND PENETRATION CHARACTERISTICS OF PULSED SUBMERGED ARC WELDING[J]. Welding & Joining, 2004, 0(7): 10-12,23 |
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| Authors: | Tianjin University Li Huan Guo Sheng Chen Lietao Liu QiongNorth China Petroleum Steel Pipe Co. Ltd Wang Qingguo Tian Peng Ye Changjun |
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| Abstract: | For the disadvantages such as grains coarsening in HAZ, lower notch toughness and the bad bead shape when using higher welding speed in SAW, this paper put forwarded a new pulsed current submerged arc welding technique, also present the brief principle of the MCU cored pulse controller. A lot of experiments were designed and finished with the help of orthogonal means. We searched the effects of pulse parameters on the welds shaping. The result indicated that the pulsed submerged arc welding could obtain greater penetration. |
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| Keywords: | pulse SAW pulse frequency peak pulse duration penetration |
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