一、前言硼是化学性质比较活泼的元素,在铝合金生产中获得广泛使用。在铝合金中同时加入微量的硼和钛,可细化合金晶粒,提高合金的性能。在导电用铝中加入硼可以提高强度而很少降低其导电性能。若铝中含有钛、锆、钒和锰等微量元素,会明显降低铝的导电率, I. Preface Boron is a more active chemical element and is widely used in the production of aluminum alloy. Add a trace amount of boron and titanium in the aluminum alloy can refine the alloy grains, improve the performance of the alloy. Addition of boron to conductive aluminum increases the strength and rarely reduces its electrical conductivity. If the aluminum contains trace elements such as titanium, zirconium, vanadium and manganese, will significantly reduce the conductivity of aluminum,