upset butt welding

基本解释

The UN250 butt-welding machine adopts manual flash prewarming, hydraulic pressure upset mode, is suitable to weld large diameter and section weldment.
UN250对焊机采用手动闪光预热、液压顶锻的方式，适合焊接大直径大截面的焊件。
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The butt welders use aluminum casting hull which is the secondary conductor, and are fixed with upset limit switch. The welding process can be finished under the proper current gear and upset force.
且设有顶锻限位开关，选择合适的电流档位和顶锻力，就能完成焊接过程。
In the process of DC upset butt welding, the joint quality was strongly effected by the temperature distribution in the direction of the plate width.
板材直流电阻对焊过程中，对接端面沿板宽方向的温度分布对焊接接头的质量有很大的影响。