钛是地球上储量较多的元素之一。它在地壳中的含量约为0.6%,为铜的60倍,镍的30倍,铬的20倍。在常见的金属中,其量仅次于铝、铁和镁,居第四位。钛越来越引起世界各国的注目,被称为发展的金属,而迅速崛起。如果把现代化工业基础的各种金属排一下座次,铁是当之无愧的第一金属,铝排第二,随着科技的进 Titanium is one of the more abundant elements on Earth. Its content in the crust is about 0.6%, 60 times that of copper, 30 times of nickel and 20 times of chromium. In the common metal, its amount is second only to aluminum, iron and magnesium, ranking fourth. Titanium more and more attracted the attention of all countries in the world, known as the development of metals, and the rapid rise. If the modern industrial base of all sorts of metal row seating, iron is a well-deserved first metal, aluminum second, with the technology into