| 摘要 |
A processing method of a copper-clad aluminum bus-bar includes the following steps: selecting a copper pipe and an aluminum bar, and removing the oxide skins of the copper pipe internal hole and the aluminum bar excircle by mechanically scrubbing; then putting them into the protective gas to prepare for assembly, inserting the aluminum bar into the copper pipe in the protective gas and closing the two ends to prevent from the air; heating the body with closed-ends in the heating-furnace and preventing them from being oxidized; drawing them to form metallurgical combination; rolling the finished bus-bar rough into copper-clad aluminum bus-bar conductors with different sizes in the rolling mill. The copper-clad aluminum bus-bar combines the two defined conductive metals, copper and aluminum, into one conductor, thereby provides a: lower cost and lighter weight conductor than fine copper conductor under the situation of guaranteeing its reliability. It is very considerable in saving of the material and labor cost. Its cost is lowest, saving 30% to 50%, and it is considered as an environmental conservation product because of saving a mass of copper resource. The density of the fine copper bus-bar is 8.9g/cm<SUP>3</SUP>, which is 3.47 times higher than that of the copper-clad aluminum bus-bar, which is 3.63g/cm<SUP>3</SUP>, and the copper-clad aluminum bus-bar is 3.47 times longer than the fine copper bus-bar with same weight and width. |
