论文部分内容阅读
1.钴及其用途钴是一种带红色色调的白色金属。它具有极高的硬度,可锻,可延伸,难熔,并具有强而稳定的磁性。钴的应用范围非常广泛,但主要应用领域有三:磁化合金、高温合金和化学工业。根据1980年第3期《Stahl u.Eisen》杂志报导,1976年用于磁化合金的钴消耗量为6500吨,相当于西方世界1976年全部钴消耗量21000吨的大约30%。1966年生产高温合金的钴消耗量占全部钴消耗量的24％,而到1977年就增加到30%。化学工业上每年大约需钴5000多吨。此外,制造硬质合金和生产优质钢,每年各需要1500吨钴。为了
1. Cobalt and its use Cobalt is a white metal with a red hue. It has a very high hardness, malleable, extendable, refractory and strong and stable magnetism. The scope of application of cobalt is very wide, but there are three main applications: magnetizing alloys, superalloys and chemical industry. According to Stahl u.Eisen magazine, No. 3, 1980, the cobalt consumption for magnetizing alloys in 1976 was 6,500 tons, equivalent to about 30% of the total cobalt consumption in 1976 in the Western world of 21,000 tons. The production of superalloy in 1966 consumed 24% of the total cobalt consumption and increased to 30% by 1977. The chemical industry needs about 5000 tons of cobalt each year. In addition, the manufacture of cemented carbide and the production of high quality steels each require 1,500 tons of cobalt each year. in order to