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紫铜焊接的主要困难是易产生气孔和裂纹,尤其是熔合线上存在大量密集气孔,严重地降低了焊接接头的机械性能。对于大型紫铜件散热快,困难则更大。为克服上述困难,除选用合理的母材,焊材,采取必要的工艺措施以外,关键在于选用和控制规范参数。我厂的试验与生产表明,只要选用合理的规范参数,并在焊接过程中调整和控制,使线能量q在一定的数值内变化,可
The main difficulty of copper welding is easy to produce pores and cracks, especially the fusion line has a large number of dense pores, seriously reducing the mechanical properties of welded joints. For large copper pieces heat faster, more difficult. To overcome the above difficulties, in addition to the selection of a reasonable base metal, welding consumables, to take the necessary technical measures, the key lies in the selection and control of the specification parameters. Our factory test and production show that as long as the selection of a reasonable standard parameters and adjustments in the welding process and control, the line energy q changes within a certain value,