| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention relates to pipe mill and can be used during the manufacturing of seamless pipes of - and semi-- titanium alloys. Ingot is forged into the blank for several passages with alternation and (+)-area, with the last passage - in (+)-area. In blank it is formed central hole and blank is heated up to 650-800C at a rate 5070C/min, then at a rate 2030C/min up to the pressing temperature. Compressing of tubular billet is implemented with rolling-out 2-7. Then tubular billet is heated up to the mandrel temperature at a rate 5070C/min and it is implemented drawing with stretch 2-3. ^ EFFECT: method provides forming of microstructure, providing high technological and performance attributes of products. ^ 2 dwg, 3 tbl, 2 ex |
