Weld preheating temperature table 焊接预热温度表
weld preheating temperature 焊接预热温度
preheating weld 预热焊接
Original preheating temperature: the temperature of the workpiece in the weld zone immediately prior to any welding operation.
初始预热温度是指任何焊接操作开始之前，焊接区域内工件的瞬时温度。
For example, substantial preheating is necessary before weld overlaying.
例如，大量的预热是必要的焊缝覆盖前。
Aiming at the zinc residue in the weld joint nugget of DP590GA, a double-impulse welding parameter with preheating impulse is designed to further improve its mechanical properties of the weld joint.
并针对DP590GA焊点熔核中锌元素的残留现象，设计出加预热的双脉冲焊接规范，进一步改善其点焊接头的力学性能。
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