多层焊是指熔敷两道以上的焊层来完成整条焊缝所进行的焊接，而焊缝的每一层由一条焊道完成，熔敷两个以上焊层完成整条焊缝所进行的焊接，当焊缝相对焊接工艺较大时，需要采用多层焊，多层焊往往连带多道焊。
... 学会羰基铁粉多道焊 Multi-pass welding 多层焊 Multi-layer welding 焊接材料 Consumables ...
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... multi lead machining多回路加工 multi pass welding多层焊 multi plane balancing多面平衡 ...
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... multipass welding 多点凸焊 multiple projection welding 多层焊 multilayer welding 定位焊 tack welding 冷压焊 ...
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分段多层焊 [机] block sequence ; block welding ; [机] block sequence welding ; block welding sequence
多层焊缝 multilayer weld ; multipass weld ; multirun weld
山形多层焊 cascade welding
多层焊接 multi-layer welding
阶梯形多层焊 cascade welding
多层焊接工艺 block welding technique
多层焊接法 block welding sequence
多段多层焊接法 block-sequence-welding
分段多层焊工序 [机] progressive block sequence
多层焊和工艺焊缝是改善HAZ性能的有效途径。
It is an effective way to improve the properties of HAZ by adopting multilayer welding and technical weld.
建议在钢材多层焊时使用脉冲电弧焊，也适合于炉焊。
For multilayer welding on steel, pulsed arc welding is recommended-also appropriate for oven soldering.
采用焊接热模拟再现了单道焊和多层焊haz的组织。
Weld thermal cycle simulation was used to reproduce the structure in the HAZ of single run and multi-layer welding.
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