PLC控制铜铝管对焊机在制冷行业的应用

The applications in refrigeration of PLC controlled Cu-AI Pipe Butt Welder

铜铝管接头焊接质量直接影响电冰箱的产品质量。优质的铜铝管焊接接头现已成为目前制冷行业急需攻关的技术。为解决这个问题，自行研制出自动焊接设备，采用电阻焊原理进行铝包铜插接式铜铝管的焊接。其特点是在推进过程中铜管外表面与铝管内表面摩擦。可将铝表面的致密氧化膜刮掉，露出新鲜铝金属，从而提高了焊接强度。铜铝管焊接的关键是对时间控制精度、稳定性、可靠性等性能指标的控制。采用可编程控制器（PLC）。通过编写程序进行控制。可以大大提高焊机的上述性能指标。并使其具有预调谐和预显示功能。增加了该机器的技术含量。制冷行业可采用此设备焊接方法焊出优质的铜铝管焊接接头。

Cu-AI pipe welding quality refrigerators directly affect the quality of products. Quality control of copperaluminum welded joints has become an urgent need refrigeration industry research technology, To solve this problem, developed on its own automatic welding equipment, resistance welding principle using copper clad aluminum-copperaluminum pipe plug welding, characterized in advancing the process of brass tubes and the outer surface of the inner surface friction can be dense surface of the aluminum oxide film scratch, exposing fresh aluminum metal, thereby increasing the welding Strength. Cu-AI pipe welding, the key is to control time on the accuracy, stability, reliability and other performance indicators control. Using programmable logic controller （PLC）, through the preparation process control, it will greatly enhance the aforementioned welding performance indicators, and with pre-tuning and pre-show functions, increase the technology content of the machines, Refrigeration industries use this method of welding equipment from welding quality control of copper-aluminum welded joints.