FIELD: metallurgy. SUBSTANCE: method of thermal treatment of rolling includes the following: heating over the critical point A1, regulated cooling up to the subcritical temperature, endurance and cooling in the air. After the regulated cooling is exercised at the speed of 15-30 degrees/s till 490-540 C the repeated heating is fulfilled up to the subcritical temperature at the speed of 20-30 degrees/min. EFFECT: reduced duration of thermal treatment at the secured required hardness and structure of steel. 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING CALIBRATED COLD-HEADING STEEL | 2020 |
|
RU2763981C1 |
| METHOD OF CALIBRATED STEEL PRODUCTION FOR COLD UPSETTING | 0 |
|
SU753912A1 |
| METHOD OF MAKING CALIBRATED STEEL FOR COLD UPSETTING | 0 |
|
SU876743A1 |
| METHOD FOR HEAT TREATMENT OF RAILS | 1991 |
|
RU2023026C1 |
| METHOD FOR HEAT TREATMENT OF DOUBLE-POUR CAST IRON ROLLS | 1993 |
|
RU2035517C1 |
| METHOD FOR MANUFACTURING HIGH-STRENGTH FASTENING PRODUCTS OF STRENGTH CLASS 14.9 FROM ALLOY STEEL BY COLD VOLUME FORGING METHOD | 2022 |
|
RU2802486C1 |
| METHOD OF THERMAL TREATMENT OF PREEUTECTOID STEEL ROLLED STOCK | 0 |
|
SU829687A1 |
| METHOD OF THERMAL TREATMENT OF POSTEUTECTOID STEELS | 0 |
|
SU831809A1 |
| METHOD FOR SPHEROIDIZING ANNEALING OF MEDIUM-CARBON STEELS FOR COLD UPSETTING | 0 |
|
SU1312111A1 |
| METHOD FOR MANUFACTURING HIGH-STRENGTH FASTENERS FROM ALLOY STEEL | 2022 |
|
RU2805689C1 |
