真空应用 稀有金属(即钨、钼、钽、铌、钛、锆、铪、锂、硅、镓等及其合金)的生产,科研中,它的熔炼、还原、蒸馏、烧结、提纯、区熔、热加工、热处理都离不开真空,真空技术,在稀有冶金上有着广泛的应用。 在毛主席的无产阶级革命路线的指引下,我国的稀有冶金工业得到了很大的发 Vacuum application of rare metals (ie tungsten, molybdenum, tantalum, niobium, titanium, zirconium, hafnium, lithium, silicon, gallium and its alloys) production, scientific research, its melting, reduction, distillation, sintering, purification, zone melting , Thermal processing, heat treatment are inseparable from the vacuum, vacuum technology, has a wide range of applications in rare metallurgy. Under the guidance of Chairman Mao’s proletarian revolutionary line, China’s rare metallurgical industry has made great progress