西德生产直径25～400毫米的热轧碳素钢和中合金钢钢管,用于锅炉、水管、石油工业、机械结构以及作为冷轧管的管坯等。热轧无缝钢管的穿孔采用斜轧穿孔机,其工作辊垂直布置,侧向装有导盘。铸坯的初轧采用六机架和八机架的三辊轧机,其传动采用三相交流电机成组传动。由荒管生产成品管采用带芯棒的纵轧方法,生产轴承管采用横轧方法。新的轧管方法是采用阿赛尔三辊轧机和具有大压下量的行星式轧管机(HRM)。阿赛尔三辊轧机增大了机架的刚度,引进了壁厚变化时轧机的自动调节装置(从前是采用改变轧辊装置角度的 West Germany produces hot-rolled carbon steel and medium-alloy steel pipes 25 to 400 mm in diameter for use in boilers, water pipes, the oil industry, mechanical structures and tubes as cold rolled tubes. The perforation of the hot-rolled seamless steel pipe adopts the cross-piercing punching machine. The work rolls are arranged vertically and the guide plates are arranged laterally. The slab of the first rolling with six-rack and eight-rack three-roll mill, the transmission using three-phase AC motor drive in groups. From waste pipe production of finished products with vertical rod core rod rolling method, the production of bearing pipe using cross-rolling method. The new pipe rolling method is the use of Assel triple-roll mills and a planetary mill with a large reduction (HRM). Assel triple-roll mills increase the rigidity of the frame, the introduction of the mill thickness changes in the mill automatic adjustment device (formerly used to change the roll device point of view