FIELD: rail-way engineering. SUBSTANCE: in a method of manufacturing switch tongue including manufacturing tongue stock, heating one end of tongue stock to a temperature not higher than 1200 C, shaping tongue root and terminating this operation at 900-940 C, cooling in thermostat to 100- 150 C and finally cooling in air, novelty consists in that root shaping is performed through agency of forging rolls involving at least six passes, and finishing rolling with calibration in one pass. Preliminary rolling is proposed to be fulfilled with following deformation degrees: in 1st pass 7-10%, in 2nd pass 6.5-9.5%, in 3rd pass 3-7%, in 4th pass 1-3%; finishing rolling with 1-3%; and calibration with 0.5-2%. EFFECT: improved performance characteristics of tongues, reduced effort and manufacture duration. 2 cl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR INDUCTIVE THERMAL HARDENING OF SWITCH RAILS AND INSTALLATION FOR ITS IMPLEMENTATION | 2022 |
|
RU2794329C1 |
| SWITCH POINT | 1996 |
|
RU2097467C1 |
| DEVICE FOR FASTENING FRAMING RAIL IN RAIL SWITCH | 1996 |
|
RU2095511C1 |
| METHOD OF MANUFACTURING POINT SWITCH TONGUES WITH USE OF INTERMEDIATE PART | 2016 |
|
RU2646006C1 |
| METHOD FOR FASTENING SWITCH OR FROG CHAIR TO PLATE OR FROG CARRIAGE | 1996 |
|
RU2095510C1 |
| METHOD FOR JOINTING RAMP AND FRAME RAIL IN POINTWORK AND POINTWORK OBTAINED BY THIS METHOD | 2023 |
|
RU2814930C1 |
| METHOD OF JOINING ARTICLES FROM HIGH-CARBON STEEL WITH ARTICLE FROM HIGH-MANGANESE AUSTENITIC STEEL | 1998 |
|
RU2129938C1 |
| SIDE SUPPORT OF RAIL FASTENING FOR TURNOUTS ON REINFORCED CONCRETE BASE AND METHOD FOR REGULATING POSITION OF RAILS IN HORIZONTAL PLANE IN TURNOUTS WITH ITS HELP | 2023 |
|
RU2815139C1 |
| METHOD FOR RECOVERY OF RAIL PROFILE (OPTIONS) | 2022 |
|
RU2779781C1 |
| METHOD OF ROLLING ASYMMETRIC RAIL PROFILES IN ROUGH PASSES | 2019 |
|
RU2721968C1 |
