| 摘要 |
A heat exchange tube 1 is integrally formed from a unitary portion of sheet or strip material having in its formed state an outer wall 4 surrounding a plurality of corrugated fins 2 which extend along the length of the tube. The tube is typically formed by means of a roll forming process in which the fins are initially formed in the sheet or strip and portions of the strip subsequently plastically deformed to provide the outerwall. Typically the tube is formed from sheet or strip aluminium (or an alloy thereof) and the tube subsequently brazed when formed. The heat exchange tube is suitable for use in vehicle radiators, condensers, oil coolers etc. The fins may include perforations (12, figure 8). |
