FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, in particular to surface continuous successive high-speed quenching of gear wheels, shafts and rolls, pulleys, cams, grippers, etc. from chromium stainless steels. To obtain a surface layer with hardness of up to 55 at depth of 2.5 mm, article is first improved, and then performing high-frequency heating with high-frequency currents to Ac3+(100–280) °C with a heating rate of 350–550 degrees/s and cooled at rate of 550–600 deg/s in a continuous-series manner.
EFFECT: disclosed is a method for surface heat treatment of items from stainless chromium steels.
1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| PROCEDURE FOR STRENGTHENING WORKING SURFACE OF TEETH | 2010 |
|
RU2436850C2 |
| THERMOMECHANICAL PROCESSING OF LIGHTLY-ALLOYED STEELS | 2013 |
|
RU2548339C1 |
| METHOD OF HEAT TREATMENT OF STAINLESS STEELS | 1992 |
|
RU2005799C1 |
| METHOD OF THERMAL TREATMENT OF WELDED TUBES | 2011 |
|
RU2484149C1 |
| METHOD FOR THERMAL TREATMENT OF WELDED JOINT ZONE OF DRILLING PIPES | 2019 |
|
RU2726209C1 |
| 0 |
|
SU1782243A3 | |
| METHOD OF FABRICATING STEEL SPRINGS (VERSIONS) | 2009 |
|
RU2411101C2 |
| METHOD FOR PRODUCING RESILIENT ELEMENTS USING METHOD OF ANISOTROPIC ORIENTATION OF NANOSTRUCTURE IN MATERIAL | 2013 |
|
RU2524028C1 |
| METHOD OF MANUFACTURING PIPES FROM CARBON AND LOW-ALLOYED STEELS | 1999 |
|
RU2153011C1 |
| APPARATUS AND METHOD FOR HEAT TREATMENT OF A LONG-LENGTH PRODUCT WITH AN L-SHAPED PROFILE WITH A SOLE, NECK, HEAD | 2020 |
|
RU2755713C1 |
