FIELD: metallurgy.
SUBSTANCE: invention relates to production of forgings of high alloy nickel-based steels and alloys which are difficult to form. According to proposed method, ingot is placed without preliminary roughing into furnace heater up to 400. Ingot is heated in heating furnace first to 600±10°C at rate not exceeding 50°C/h and is held at this temperature for 1.5-2.5 h. Then ingot is heated to 700±10°C at rate of 50°C/h maximum and is held at this temperature for 0.8-1.2 h. Heating of ingot to forging temperature of (1150-1180)±10°C is carried out at any rate, and ingot is held at this temperature for 3-5 h.
EFFECT: increased yield of ready metal and getting of fine-grained structure, provision of high level of mechanical properties and adaptability to further processing of forgings.
4 cl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MAKING SHAFTS FROM MARAGING STEEL | 2023 |
|
RU2821981C1 |
| METHOD OF PRODUCING DISC-TYPE FORGINGS OF HIGH-ALLOYED REFRACTORY ALLOYS | 0 |
|
SU867519A1 |
| METHOD OF ANTI-HYDROGEN HEAT TREATMENT OF BLANKS FROM STEELS AND ALLOYS | 2017 |
|
RU2667111C2 |
| METHOD OF HEATING BLANKS BEFORE FORGING | 0 |
|
SU897372A1 |
| METHOD FOR MAKING HOLLOW FORGINGS | 0 |
|
SU1650314A1 |
| METHOD OF PRODUCING FORGINGS | 2011 |
|
RU2457061C1 |
| METHOD OF FORGING PARTS OF PLATE TYPES | 0 |
|
SU1532169A1 |
| METHOD OF MANUFACTURING SHAFT FORGINGS | 0 |
|
SU764814A1 |
| METHOD FOR MANUFACTURING FORGING BLANKS FROM AUSTENITIC STEELS | 2022 |
|
RU2797893C1 |
| METHOD OF MANUFACTURE OF FORGINGS, PREDOMINANTLY OUT OF METALS AND ALLOYS OF TITANIUM SUBGROUP AND FORGING COMPLEX FOR PERFORMING THE SAME | 2002 |
|
RU2220020C1 |
