焊接结构对真空电子束焊焊接气孔的影响
|
摘要
以电磁阀、推力器为例,阐述环缝典型结构真空电子束焊接工艺,发现影响焊缝质量的主要因素是焊接过程中产生的气孔缺陷。分析焊接气孔产生主要原因为硅油使用不合理、内腔未处于真空状态、退刀槽位置不合理以及清根后留有空腔。通过采取合理的焊接工艺措施,可以很好地控制接头中的气孔缺陷,保证焊缝的力学性能,满足设计使用要求。
Taking the solenoid valve and the thruster as an example,the vacuum electron beam welding process of the typical structure of the annular joint is described.The main factor affecting weld quality is porosity defect during welding.The main causes of welding porosity are unreasonable use of silicone oil,vacuum in the chamber,unreasonable position of the cutter slot and cavity after root cleaning.After adopting reasonable welding process measures,the blowhole in the joint can be well controlled,which ensures the mechanical properties of the weld and meets the requirements of the design.
Taking the solenoid valve and the thruster as an example,the vacuum electron beam welding process of the typical structure of the annular joint is described.The main factor affecting weld quality is porosity defect during welding.The main causes of welding porosity are unreasonable use of silicone oil,vacuum in the chamber,unreasonable position of the cutter slot and cavity after root cleaning.After adopting reasonable welding process measures,the blowhole in the joint can be well controlled,which ensures the mechanical properties of the weld and meets the requirements of the design.
引文
[1]李宜男.电子束焊接在阀门阀体制造中的应用[J].电焊机,2007,37(11):26-27.
[2]王素慧,王俊元.2A12铝合金真空电子束焊接气孔缺陷分析[J].机械设计与制造,2008(9):139-141.
[3]夏明星,郑欣,李中奎,等.TC4钛合金与Nb-W-Mo-Zr铌合金的真空电子束焊接工艺研究[J].研发与应用,2008,27(12):22-25.
[4]陈路,朱天军,陈高詹,等.聚变堆用CLF-1钢电子束焊接缺陷分析及控制[J].焊接,2015(7):61-65.
[5]王文平,张志伟,黎月明,等.一种钼合金与钨合金的电子束焊焊接方法[P].中国专利:CN201710472561.5,2017-6-21.
[2]王素慧,王俊元.2A12铝合金真空电子束焊接气孔缺陷分析[J].机械设计与制造,2008(9):139-141.
[3]夏明星,郑欣,李中奎,等.TC4钛合金与Nb-W-Mo-Zr铌合金的真空电子束焊接工艺研究[J].研发与应用,2008,27(12):22-25.
[4]陈路,朱天军,陈高詹,等.聚变堆用CLF-1钢电子束焊接缺陷分析及控制[J].焊接,2015(7):61-65.
[5]王文平,张志伟,黎月明,等.一种钼合金与钨合金的电子束焊焊接方法[P].中国专利:CN201710472561.5,2017-6-21.