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热交换器的管子与管板焊接质量至关重要.陈旧落后的工艺已不能适应需要。采用新的数控脉冲全位置自动氩弧焊能满意地保证质量。本文介绍了匹配的焊接设备,对比了数种接头型式,提供了最佳工艺规范参数,特別改进了用三尖锥机械定位法.使焊接施工方便、质量稳定可靠。文中还应用实例说明经考核过的质量可稳定在99.99%以上.
Heat exchanger tube and tube plate welding quality is crucial. Outdated technology has been unable to meet the needs of obsolete. Using the new CNC pulse full position automatic argon arc welding can satisfactorily ensure the quality. This article describes the matching welding equipment, compared several types of joints, provides the best process specification parameters, especially improved with three sharp cone mechanical positioning method, so that the welding construction is convenient, stable and reliable quality. The article also illustrates the use of examples of the quality of the assessment can be stabilized at 99.99% or more.