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轧钢技术的迅速发展还是最近一、二十年的事,即从六十年代开始到七十年代初期。1974年世界钢产量突破了7×10~8t。当时国外轧钢技术发展的特点是向大型化、连续化、高速化和自动化方向发展。但到1973年发生了世界性的石油危机,特别是近年资本主义发生周期性经济危机,使整个资本主义经济处于不景气状态,到1982年全世界钢产量下降到5.8×10~8t。到了八十年代,轧钢技术发展是以节约能源,提高成材率,扩
The rapid development of rolling technology is still the last one or two decades, from the sixties to the early seventies. World steel production in 1974 exceeded 7 × 10 ~ 8t. At that time the characteristics of foreign rolling technology development is to large-scale, continuous, high-speed and automation direction. However, the world oil crisis took place in 1973, and in particular, the cyclical economic crisis in capitalism in recent years has brought the entire capitalist economy to a downturn. By 1982, the world’s steel output dropped to 5.8x10-8 t. By the 1980s, the development of rolling technology was based on energy conservation, improvement of product yield and expansion