DEVELOPMENT OF HIGH-FREQUENT WELDED COOLANT PIPE FOR AIR COOLER

Relative operation practice has proven that the newly developed 36mm×14mm×1.5mm oval shaped higf-frequent welded coolant pipe for air cooler provides very satisfactory perfor-mances,which is helpful for considering the development of high-frequent straight-seam weld pipes for multi-purposes and with high precision and high strength as well.