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截止1972年,全世界正在运行的热轧带钢轧机约为130台,总的生产能力约为23000万吨。其中日本的生产能力为4570万吨,约占22%。1972年热轧带卷的产量为3690万吨。目前,日本热轧带钢轧机的拥有量已达到21套,其中12套是在最近10年中建成的。日本自认为它的热轧带钢的装备已达到世界最高水平。生产的单个钢卷重可达47.5吨,最高精轧速度为1600米/分,产品最大厚度为25毫米,最小为0.8毫米。轧机中全连续型数量超过了一半,宽度达到2032毫米的轧机占总数的19%。
As of 1972, about 130 hot-strip mills were operating worldwide with a total capacity of about 230 million tons. Japan’s production capacity of which 45.7 million tons, accounting for about 22%. The output of hot rolled coil in 1972 was 36.9 million tons. At present, the number of hot-rolled strip mills in Japan has reached 21, of which 12 have been completed in the last 10 years. Japan believes that its hot-rolled strip equipment has reached the highest level in the world. Production of a single heavy coil up to 47.5 tons, the highest finishing speed of 1600 m / min, the maximum product thickness of 25 mm, a minimum of 0.8 mm. More than half the number of fully continuous mills and 19% of rolling mills with a width of 2032 mm.