用低压铸造不锈钢圆坯代替轧坯穿制无缝钢管,是将铸造和轧制相联系的一项技术。 我们于80年在实验室用小型低压铸造机,浇注三十根圆坯。并在φ30mm小型穿孔机上进行穿管试验。 试验表明,低压铸造的铸坯可以满足无缝穿管的要求,如试生产稳定,这一新工艺将能简化制管工序,节约能源,提高制管经济效果。 Using low-pressure cast stainless steel round billet instead of rolling blank through the seamless steel pipe, casting and rolling is linked to a technology. We cast thirty round billets in our laboratory in 1980 using a small low-pressure die-casting machine. And in the φ30mm small punch on the tube wear test. The test shows that the low-pressure cast slab can meet the seamless wear-through requirements, such as trial production stability, this new process will simplify the process of pipe making, energy conservation and improve the economic performance of pipe.