G-M制冷机气缸组件焊接工艺初探

Cryogenics & Superconductivity(2012)

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Abstract
气缸组件由整体式改为分体式,就面临一个焊接问题。二级气缸级间法兰与一级气缸缸体相连,采用微热氩弧焊焊接;用焊接芯棒保证一、二级气缸的同轴度及气缸组件的长度尺寸;焊接时使用螺孔定位工装保证一、二级冷头上各螺孔在图示位置,不得错位。对气缸组件的焊接工艺作了初步的分析与探索。
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Key words
Welding rod,Cylinder assembly,Micro argon arc welding,Screw positioning fixture
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