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.
多层焊和附加工艺焊缝是提高焊接接头性能的有效途径。
The properties of the welded joint may be effectively enhanced by adopting neat multi-layer welding and technical welds.
多层焊形式下的残余应力与加热宽度的关系表现为后一种型式。
The relation between the residual stress and heated band width in multi pass welding behaves in the latter type.
从酸蚀断面还可以看出：在原自动埋弧焊的上面覆盖有多层焊道。
The etched section also reveals that multiple weld passes were made over the top of the original submerged arc weld pass.
对核电凝汽器制造中的大拼板多层焊后的角变形进行了计算机预测。
Angle distortion modeling and prediction with computer for heavy plate multi-pass welding are carried out during condenser fabrication for nuclear power station.
在多层焊的过程中，采用对称施焊的方法得到的焊接残余拉应力峰值是最小的。
In the multilayer welding process, the method of symmetry welding gets the minimum residual tensile stress.
特别适合铜雕像修复的焊接，建议在钢材多层焊时使用脉冲电弧焊，用于大焊件时建议预热。
Particularly suitable for repair welding of bronze statues. For multilayer welding on steels, pulsed arc welding is recommended. For large work pieces preheating is recommended.
在多层钢加层焊时建议使用脉冲电弧焊。
For multilayer welding on steels, pulsed arc welding is recommended.
新型天线结构和材料使回流焊、多层的成分载体和因此多功能系统。
New antenna structures and materials enable reflow soldering, multilayer component substrates and thus multifunctional systems as well.
采用焊管作为管坯 ，焊管弯曲采用专用模具热弯 ，焊接采用等离子弧焊。超塑成形采用多层模结构 ，用模具来控制波形。
Welded pipe that bended by hot bending method with a set of specific die and welded by plasma arc welding method was used as tubular blank of SPF.
另外为消除二次淬火对ASTM 4130钢组织和性能的影响，应采用多层多道焊，并添加回火焊道。
In addition, to weaken the effect of double quenching on the microstructure and properties of ASTM4130 steel, multi-pass welding and temper bead should be adopted.
干燥机轴焊有多套，多层不同心无缝管，每套有多根大小不同弯成阿基米德螺旋线形无缝管组成。
The dryer shaft is welded with several sets of multi-layer non-concentric seamless tubes, each of which is comprised of multiple seamless tubes having different sizes bent in Archimede's spiral.
干燥机轴焊有多套，多层不同心无缝管，每套有多根大小不同弯成阿基米德螺旋线形无缝管组成。
The dryer shaft is welded with several sets of multi-layer non-concentric seamless tubes, each of which is comprised of multiple seamless tubes having different sizes bent in Archimede's spiral.
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