| 摘要 |
FIELD: metallurgy; methods for removal of hydrogen and increase of ductility in steels, mainly, of bainite structure. SUBSTANCE: method for removal of hydrogen and increase of ductility of steel finished grade includes cooling of blanks after hot plastic deformation, first, to temperature Aof 20 to -30 C at the rate of 15-60 C/min, then, to temperature higher by 10-20 C of the end of zone of ferrite- perlite conversion at the rate of 1.0-3.5 C/min. The further antiflake treatment is carried out in nonheated pit for 10-30 h with subsequent cooling in the air. EFFECT: higher ductility of steel. 1 cl, 1 tbl |
