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1·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。

2·A displacement threshold was used to control DC upset butt welding process, and constant pressure and varied pressure tests were carried out on Q235 a steel strips.

采用位移门槛电压控制焊接过程，对Q 235 - A钢进行了变压式和等压式扁钢带直流电阻对焊试验。

3·The joint deformation of DC upset butt welding was studied by using theory of plastic deformation and rigid-viscosity plastic material model.

采用塑性变形理论和刚粘塑性材料模型研究了直流电阻对焊接头的塑性变形。

4·With adjustable eccentric pressure work piece applied on this welder, welding process is artificially controlled with proper current and upset force.

该系列对焊机采用可调的偏芯轮压紧工件的方式，选择合适的电流档位和顶锻力，人控焊接时间完成焊接过程。

5·This series use screws to compress the work pieces. The welding process is finished under the reasonable current gear and upset force in the man-controlled time.

该系列对焊机采用螺杆压紧工件，选择合适的电流档位和顶锻力，人控焊接时间完成焊接过程。