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实用新型
CN203197446U 一种辊道堆焊埋弧焊机导电嘴 失效 - 权利终止 转让

一种辊道堆焊埋弧焊机导电嘴
摘要：
本实用新型公开的一种辊道堆焊埋弧焊机导电嘴，包括导电嘴头和导电棒，导电棒上设置有螺纹孔，导电嘴头上设置有与导电棒上螺纹孔相对应的螺纹，导电嘴头上端的进口处内壁还设置有耐磨层，耐磨层的内径与导电嘴头的内径相等，耐磨层上端的进口处内壁设置有45度倒角。本实用新型结构简单，牢靠稳定，导电性好，耐磨性好，有效地延长了导电嘴的使用寿命，并且提高了导电嘴的使用安全性，有效地降低了企业的生产成本。
摘要（英）：

The utility model discloses a contact tube of a roller bed bead-weld submerged arc welding machine. The contact tube of the roller bed bead-weld submerged arc welding machine comprises a contact tube head and a contact spike, wherein a threaded hole is formed in the contact spike, the contact tube head is provided with threads which correspond to the threaded hole in the contact spike, an abrasion-resistant layer is further arranged on the inner wall of an inlet in the upper end of the contact tube head, the inner diameter of the abrasion-resistant layer is equal to that of the contact tube head, and a 45-degree chamfer is arranged on the inner wall of an inlet in the upper end of the abrasion-resistant layer. The contact tube of the roller bed bead-weld submerged arc welding machine is simple in structure, firm, stable, good in electrical conductivity and good in abrasion resistance, effectively prolongs the service life, improves using safety, and effectively reduces production cost of enterprises.

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